diff options
Diffstat (limited to 'arch/alpha')
323 files changed, 5589 insertions, 12353 deletions
diff --git a/arch/alpha/Kbuild b/arch/alpha/Kbuild new file mode 100644 index 000000000000..345d79df24bb --- /dev/null +++ b/arch/alpha/Kbuild @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-y += kernel/ mm/ +obj-$(CONFIG_MATHEMU) += math-emu/ + +# for cleaning +subdir- += boot diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 837a1f2d8b96..80367f2cf821 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -1,28 +1,45 @@ +# SPDX-License-Identifier: GPL-2.0 config ALPHA bool default y - select HAVE_AOUT - select HAVE_IDE - select HAVE_OPROFILE + select ARCH_32BIT_USTAT_F_TINODE + select ARCH_HAS_CURRENT_STACK_POINTER + select ARCH_HAS_DMA_OPS if PCI + select ARCH_MIGHT_HAVE_PC_PARPORT + select ARCH_MIGHT_HAVE_PC_SERIO + select ARCH_MODULE_NEEDS_WEAK_PER_CPU if SMP + select ARCH_NO_PREEMPT + select ARCH_NO_SG_CHAIN + select ARCH_USE_CMPXCHG_LOCKREF + select FORCE_PCI + select PCI_DOMAINS if PCI + select PCI_SYSCALL if PCI + select HAVE_ASM_MODVERSIONS + select HAVE_PAGE_SIZE_8KB select HAVE_PCSPKR_PLATFORM select HAVE_PERF_EVENTS - select HAVE_DMA_ATTRS - select HAVE_GENERIC_HARDIRQS - select VIRT_TO_BUS + select NEED_DMA_MAP_STATE + select NEED_SG_DMA_LENGTH select GENERIC_IRQ_PROBE + select GENERIC_PCI_IOMAP select AUTO_IRQ_AFFINITY if SMP select GENERIC_IRQ_SHOW - select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_WANT_IPC_PARSE_VERSION select ARCH_HAVE_NMI_SAFE_CMPXCHG + select AUDIT_ARCH + select GENERIC_CPU_VULNERABILITIES select GENERIC_SMP_IDLE_THREAD - select GENERIC_CMOS_UPDATE - select GENERIC_STRNCPY_FROM_USER - select GENERIC_STRNLEN_USER + select HAS_IOPORT + select HAVE_ARCH_AUDITSYSCALL select HAVE_MOD_ARCH_SPECIFIC + select LOCK_MM_AND_FIND_VMA select MODULES_USE_ELF_RELA select ODD_RT_SIGACTION select OLD_SIGSUSPEND + select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 + select MMU_GATHER_NO_RANGE + select SPARSEMEM_EXTREME if SPARSEMEM + select ZONE_DMA help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, @@ -36,13 +53,6 @@ config MMU bool default y -config RWSEM_GENERIC_SPINLOCK - bool - -config RWSEM_XCHGADD_ALGORITHM - bool - default y - config ARCH_HAS_ILOG2_U32 bool default n @@ -55,33 +65,23 @@ config GENERIC_CALIBRATE_DELAY bool default y -config ZONE_DMA - bool - default y - -config ARCH_DMA_ADDR_T_64BIT - def_bool y - -config NEED_DMA_MAP_STATE - def_bool y - -config NEED_SG_DMA_LENGTH - def_bool y - config GENERIC_ISA_DMA bool default y -source "init/Kconfig" -source "kernel/Kconfig.freezer" +config PGTABLE_LEVELS + int + default 3 +config AUDIT_ARCH + bool menu "System setup" choice prompt "Alpha system type" default ALPHA_GENERIC - ---help--- + help This is the system type of your hardware. A "generic" kernel will run on any supported Alpha system. However, if you configure a kernel for your specific system, it will be faster and smaller. @@ -91,22 +91,11 @@ choice <http://www.alphalinux.org/>. In summary: Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 - Alpha-XL XL-233, XL-266 - AlphaBook1 Alpha laptop - Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 - Cabriolet AlphaPC64, AlphaPCI64 DP264 DP264 / DS20 / ES40 / DS10 / DS10L - EB164 EB164 21164 evaluation board - EB64+ EB64+ 21064 evaluation board - EB66 EB66 21066 evaluation board - EB66+ EB66+ 21066 evaluation board - Jensen DECpc 150, DEC 2000 models 300, 500 LX164 AlphaPC164-LX - Lynx AS 2100A Miata Personal Workstation 433/500/600 a/au Marvel AlphaServer ES47 / ES80 / GS1280 Mikasa AS 1000 - Noname AXPpci33, UDB (Multia) Noritake AS 1000A, AS 600A, AS 800 PC164 AlphaPC164 Rawhide AS 1200, AS 4000, AS 4100 @@ -123,11 +112,13 @@ choice config ALPHA_GENERIC bool "Generic" depends on TTY + select HAVE_EISA help A generic kernel will run on all supported Alpha hardware. config ALPHA_ALCOR bool "Alcor/Alpha-XLT" + select HAVE_EISA help For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O @@ -136,27 +127,6 @@ config ALPHA_ALCOR all the work required to support an external Bcache and to maintain memory coherence when a PCI device DMAs into (or out of) memory. -config ALPHA_XL - bool "Alpha-XL" - help - XL-233 and XL-266-based Alpha systems. - -config ALPHA_BOOK1 - bool "AlphaBook1" - help - Dec AlphaBook1/Burns Alpha-based laptops. - -config ALPHA_AVANTI_CH - bool "Avanti" - -config ALPHA_CABRIOLET - bool "Cabriolet" - help - Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now - baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA - slots, 4 PCI slots (one pair are on a shared slot), uses plug-in - Bcache SIMMs. Requires power supply with 3.3V output. - config ALPHA_DP264 bool "DP264" help @@ -164,60 +134,18 @@ config ALPHA_DP264 API Networks: 264DP, UP2000(+), CS20; Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. -config ALPHA_EB164 - bool "EB164" - help - EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has - ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is - shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in - Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, - MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized - motherboard. Requires power supply with 3.3V output. - -config ALPHA_EB64P_CH - bool "EB64+" - -config ALPHA_EB66 - bool "EB66" - help - A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is - identical to EB64+. Baby PC-AT size. Runs from standard PC power - supply. The EB66 schematic was published as a marketing poster - advertising the 21066 as "the first microprocessor in the world with - embedded PCI". - -config ALPHA_EB66P - bool "EB66+" - help - Later variant of the EB66 board. - config ALPHA_EIGER bool "Eiger" help Apparently an obscure OEM single-board computer based on the Typhoon/Tsunami chipset family. Information on it is scanty. -config ALPHA_JENSEN - bool "Jensen" - help - DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one - of the first-generation Alpha systems. A number of these systems - seem to be available on the second- hand market. The Jensen is a - floor-standing tower system which originally used a 150MHz 21064 It - used programmable logic to interface a 486 EISA I/O bridge to the - CPU. - config ALPHA_LX164 bool "LX164" help A technical overview of this board is available at <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. -config ALPHA_LYNX - bool "Lynx" - help - AlphaServer 2100A-based systems. - config ALPHA_MARVEL bool "Marvel" help @@ -225,6 +153,7 @@ config ALPHA_MARVEL config ALPHA_MIATA bool "Miata" + select HAVE_EISA help The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, or 600au). @@ -239,11 +168,9 @@ config ALPHA_NAUTILUS help Alpha systems based on the AMD 751 & ALI 1543C chipsets. -config ALPHA_NONAME_CH - bool "Noname" - config ALPHA_NORITAKE bool "Noritake" + select HAVE_EISA help AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based systems. @@ -251,11 +178,9 @@ config ALPHA_NORITAKE config ALPHA_PC164 bool "PC164" -config ALPHA_P2K - bool "Platform2000" - config ALPHA_RAWHIDE bool "Rawhide" + select HAVE_EISA help AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. See HOWTO at @@ -275,6 +200,7 @@ config ALPHA_SX164 config ALPHA_SABLE bool "Sable" + select HAVE_EISA help Digital AlphaServer 2000 and 2100-based systems. @@ -315,112 +241,18 @@ config ISA_DMA_API bool default y -config PCI - bool - depends on !ALPHA_JENSEN - select GENERIC_PCI_IOMAP - default y - help - Find out whether you have a PCI motherboard. PCI is the name of a - bus system, i.e. the way the CPU talks to the other stuff inside - your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or - VESA. If you have PCI, say Y, otherwise N. - -config PCI_DOMAINS - bool - default y - -config PCI_SYSCALL - def_bool PCI - -config IOMMU_HELPER - def_bool PCI - -config ALPHA_NONAME - bool - depends on ALPHA_BOOK1 || ALPHA_NONAME_CH - default y - help - The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia - UDB). This design was produced by Digital's Technical OEM (TOEM) - group. It uses the 21066 processor running at 166MHz or 233MHz. It - is a baby-AT size, and runs from a standard PC power supply. It has - 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are - 2 versions, with either PS/2 or large DIN connectors for the - keyboard. - -config ALPHA_EV4 - bool - depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K - default y if !ALPHA_LYNX - -config ALPHA_LCA - bool - depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K - default y - -config ALPHA_APECS - bool - depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL - default y - -config ALPHA_EB64P - bool - depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH - default y - help - Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, - 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. - ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI - (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), - SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. - Runs from standard PC power supply. - -config ALPHA_EV5 - bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX - default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR - -config ALPHA_EV4 - bool - default y if ALPHA_LYNX && !ALPHA_EV5 - config ALPHA_CIA bool - depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR + depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE || ALPHA_MIKASA || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_ALCOR default y config ALPHA_EV56 - bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR - default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA - -config ALPHA_EV56 - prompt "EV56 CPU (speed >= 333MHz)?" - depends on ALPHA_NORITAKE || ALPHA_PRIMO - -config ALPHA_EV56 - prompt "EV56 CPU (speed >= 400MHz)?" - depends on ALPHA_RAWHIDE - -config ALPHA_PRIMO - bool "EV5 CPU daughtercard (model 5/xxx)?" - depends on ALPHA_NORITAKE || ALPHA_MIKASA - help - Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. - -config ALPHA_GAMMA - bool "EV5 CPU(s) (model 5/xxx)?" - depends on ALPHA_SABLE - help - Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. - -config ALPHA_GAMMA bool - depends on ALPHA_LYNX - default y + default y if ALPHA_ALCOR || ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_NORITAKE || ALPHA_MIKASA || ALPHA_RAWHIDE || ALPHA_SABLE config ALPHA_T2 bool - depends on ALPHA_SABLE || ALPHA_LYNX + depends on ALPHA_SABLE default y config ALPHA_PYXIS @@ -464,15 +296,6 @@ config GENERIC_HWEIGHT bool default y if !ALPHA_EV67 -config ALPHA_AVANTI - bool - depends on ALPHA_XL || ALPHA_AVANTI_CH - default y - help - Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based - Alphas. Info at - <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. - config ALPHA_BROKEN_IRQ_MASK bool depends on ALPHA_GENERIC || ALPHA_PC164 @@ -487,11 +310,25 @@ config VGA_HOSE which always have multiple hoses, and whose consoles support it. +config ALPHA_QEMU + bool "Run under QEMU emulation" + depends on !ALPHA_GENERIC + help + Assume the presence of special features supported by QEMU PALcode + that reduce the overhead of system emulation. + + Generic kernels will auto-detect QEMU. But when building a + system-specific kernel, the assumption is that we want to + eliminate as many runtime tests as possible. + + If unsure, say N. + + config ALPHA_SRM - bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME + bool "Use SRM as bootloader" if ALPHA_PC164 || ALPHA_TAKARA || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS depends on TTY - default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL - ---help--- + default y if ALPHA_MIKASA || ALPHA_SABLE || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL + help There are two different types of booting firmware on Alphas: SRM, which is command line driven, and ARC, which uses menus and arrow keys. Details about the Linux/Alpha booting process are contained in @@ -511,39 +348,28 @@ config ALPHA_SRM If unsure, say N. -config EISA - bool - depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE - default y - config ARCH_MAY_HAVE_PC_FDC def_bool y config SMP bool "Symmetric multi-processing support" - depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL - select USE_GENERIC_SMP_HELPERS - ---help--- + depends on ALPHA_SABLE || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL + help This enables support for systems with more than one CPU. If you have - a system with only one CPU, like most personal computers, say N. If - you have a system with more than one CPU, say Y. + a system with only one CPU, say N. If you have a system with more + than one CPU, say Y. - If you say N here, the kernel will run on single and multiprocessor + If you say N here, the kernel will run on uni- and multiprocessor machines, but will use only one CPU of a multiprocessor machine. If you say Y here, the kernel will run on many, but not all, - singleprocessor machines. On a singleprocessor machine, the kernel + uniprocessor machines. On a uniprocessor machine, the kernel will run faster if you say N here. See also the SMP-HOWTO available at - <http://www.tldp.org/docs.html#howto>. + <https://www.tldp.org/docs.html#howto>. If you don't know what to do here, say N. -config HAVE_DEC_LOCK - bool - depends on SMP - default y - config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 @@ -552,35 +378,42 @@ config NR_CPUS default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL help MARVEL support can handle a maximum of 32 CPUs, all the others - with working support have a maximum of 4 CPUs. + with working support have a maximum of 4 CPUs. -config ARCH_DISCONTIGMEM_ENABLE - bool "Discontiguous Memory Support" +config ARCH_SPARSEMEM_ENABLE + bool "Sparse Memory Support" help Say Y to support efficient handling of discontiguous physical memory, - for architectures which are either NUMA (Non-Uniform Memory Access) - or have huge holes in the physical address space for other reasons. - See <file:Documentation/vm/numa> for more. - -source "mm/Kconfig" + for systems that have huge holes in the physical address space. -config NUMA - bool "NUMA Support (EXPERIMENTAL)" - depends on DISCONTIGMEM && BROKEN +config ALPHA_WTINT + bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC + default y if ALPHA_QEMU + default n if ALPHA_EV56 + default n if !ALPHA_SRM && !ALPHA_GENERIC + default y if SMP help - Say Y to compile the kernel to support NUMA (Non-Uniform Memory - Access). This option is for configuring high-end multiprocessor - server machines. If in doubt, say N. + The Wait for Interrupt (WTINT) PALcall attempts to place the CPU + to sleep until the next interrupt. This may reduce the power + consumed, and the heat produced by the computer. However, it has + the side effect of making the cycle counter unreliable as a timing + device across the sleep. -config NODES_SHIFT - int - default "7" - depends on NEED_MULTIPLE_NODES + For emulation under QEMU, definitely say Y here, as we have other + mechanisms for measuring time than the cycle counter. + + For EV4 (but not LCA), EV5 and EV56 systems, or for systems running + MILO, sleep mode is not supported so you might as well say N here. + + For SMP systems we cannot use the cycle counter for timing anyway, + so you might as well say Y here. + + If unsure, say N. # LARGE_VMALLOC is racy, if you *really* need it then fix it first config ALPHA_LARGE_VMALLOC bool - ---help--- + help Process creation and other aspects of virtual memory management can be streamlined if we restrict the kernel to one PGD for all vmalloc allocations. This equates to about 8GB. @@ -599,7 +432,7 @@ config VERBOSE_MCHECK_ON int "Verbose Printing Mode (0=off, 1=on, 2=all)" depends on VERBOSE_MCHECK default 1 - ---help--- + help This option allows the default printing mode to be set, and then possibly overridden by a boot command argument. @@ -613,20 +446,47 @@ config VERBOSE_MCHECK_ON Take the default (1) unless you want more control or more info. +choice + prompt "Timer interrupt frequency (HZ)?" + default HZ_128 if ALPHA_QEMU + default HZ_1200 if ALPHA_RAWHIDE + default HZ_1024 + help + The frequency at which timer interrupts occur. A high frequency + minimizes latency, whereas a low frequency minimizes overhead of + process accounting. The later effect is especially significant + when being run under QEMU. + + Note that some Alpha hardware cannot change the interrupt frequency + of the timer. If unsure, say 1024 (or 1200 for Rawhide). + + config HZ_32 + bool "32 Hz" + config HZ_64 + bool "64 Hz" + config HZ_128 + bool "128 Hz" + config HZ_256 + bool "256 Hz" + config HZ_1024 + bool "1024 Hz" + config HZ_1200 + bool "1200 Hz" +endchoice + config HZ int - default 1200 if ALPHA_RAWHIDE + default 32 if HZ_32 + default 64 if HZ_64 + default 128 if HZ_128 + default 256 if HZ_256 + default 1200 if HZ_1200 default 1024 -source "drivers/pci/Kconfig" -source "drivers/eisa/Kconfig" - -source "drivers/pcmcia/Kconfig" - config SRM_ENV tristate "SRM environment through procfs" depends on PROC_FS - ---help--- + help If you enable this option, a subdirectory inside /proc called /proc/srm_environment will give you access to the all important SRM environment variables (those which have a name) and also @@ -646,28 +506,11 @@ config SRM_ENV This driver is also available as a module and will be called srm_env then. -source "fs/Kconfig.binfmt" - endmenu -source "net/Kconfig" - -source "drivers/Kconfig" - -source "fs/Kconfig" - -source "arch/alpha/Kconfig.debug" - # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig # but we also need it if VGA_HOSE is set config DUMMY_CONSOLE bool depends on VGA_HOSE default y - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" - diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug index 3f6265f2d9d4..f85f4281cc48 100644 --- a/arch/alpha/Kconfig.debug +++ b/arch/alpha/Kconfig.debug @@ -1,6 +1,4 @@ -menu "Kernel hacking" - -source "lib/Kconfig.debug" +# SPDX-License-Identifier: GPL-2.0 config EARLY_PRINTK bool @@ -11,7 +9,7 @@ config ALPHA_LEGACY_START_ADDRESS bool "Legacy kernel start address" depends on ALPHA_GENERIC default n - ---help--- + help The 2.4 kernel changed the kernel start address from 0x310000 to 0x810000 to make room for the Wildfire's larger SRM console. Recent consoles on Titan and Marvel machines also require the @@ -38,5 +36,3 @@ config MATHEMU This option is required for IEEE compliant floating point arithmetic on the Alpha. The only time you would ever not say Y is to say M in order to debug the code. Say Y unless you know what you are doing. - -endmenu diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile index 2cc3cc519c54..35445ff2e489 100644 --- a/arch/alpha/Makefile +++ b/arch/alpha/Makefile @@ -11,22 +11,18 @@ NM := $(NM) -B LDFLAGS_vmlinux := -static -N #-relax -CHECKFLAGS += -D__alpha__ -m64 +CHECKFLAGS += -D__alpha__ cflags-y := -pipe -mno-fp-regs -ffixed-8 cflags-y += $(call cc-option, -fno-jump-tables) -cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 -cpuflags-$(CONFIG_ALPHA_EV5) := -mcpu=ev5 cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56 cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56 cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6 cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67 # If GENERIC, make sure to turn off any instruction set extensions that -# the host compiler might have on by default. Given that EV4 and EV5 -# have the same instruction set, prefer EV5 because an EV5 schedule is -# more likely to keep an EV4 processor busy than vice-versa. -cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev5 +# the host compiler might have on by default. +cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev56 -mtune=ev6 cflags-y += $(cpuflags-y) @@ -36,11 +32,6 @@ cflags-y += $(cpuflags-y) # BWX is most important, but we don't really want any emulation ever. KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6 -head-y := arch/alpha/kernel/head.o - -core-y += arch/alpha/kernel/ arch/alpha/mm/ -core-$(CONFIG_MATHEMU) += arch/alpha/math-emu/ -drivers-$(CONFIG_OPROFILE) += arch/alpha/oprofile/ libs-y += arch/alpha/lib/ # export what is needed by arch/alpha/boot/Makefile @@ -58,8 +49,8 @@ $(boot)/vmlinux.gz: vmlinux bootimage bootpfile bootpzfile: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ -archclean: - $(Q)$(MAKE) $(clean)=$(boot) +archheaders: + $(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all define archhelp echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)' diff --git a/arch/alpha/boot/Makefile b/arch/alpha/boot/Makefile index cd143887380a..d8dba85e606c 100644 --- a/arch/alpha/boot/Makefile +++ b/arch/alpha/boot/Makefile @@ -8,12 +8,15 @@ # Copyright (C) 1994 by Linus Torvalds # -hostprogs-y := tools/mkbb tools/objstrip +hostprogs := tools/mkbb tools/objstrip targets := vmlinux.gz vmlinux \ vmlinux.nh tools/lxboot tools/bootlx tools/bootph \ tools/bootpzh bootloader bootpheader bootpzheader OBJSTRIP := $(obj)/tools/objstrip +KBUILD_HOSTCFLAGS := -Wall -I$(objtree)/usr/include +BOOTCFLAGS += -I$(objtree)/$(obj) -I$(srctree)/$(obj) + # SRM bootable image. Copy to offset 512 of a partition. $(obj)/bootimage: $(addprefix $(obj)/tools/,mkbb lxboot bootlx) $(obj)/vmlinux.nh ( cat $(obj)/tools/lxboot $(obj)/tools/bootlx $(obj)/vmlinux.nh ) > $@ @@ -96,13 +99,14 @@ $(obj)/tools/bootph: $(obj)/bootpheader $(OBJSTRIP) FORCE $(obj)/tools/bootpzh: $(obj)/bootpzheader $(OBJSTRIP) FORCE $(call if_changed,objstrip) -LDFLAGS_bootloader := -static -uvsprintf -T #-N -relax -LDFLAGS_bootpheader := -static -uvsprintf -T #-N -relax -LDFLAGS_bootpzheader := -static -uvsprintf -T #-N -relax +LDFLAGS_bootloader := -static -T # -N -relax +LDFLAGS_bootloader := -static -T # -N -relax +LDFLAGS_bootpheader := -static -T # -N -relax +LDFLAGS_bootpzheader := -static -T # -N -relax -OBJ_bootlx := $(obj)/head.o $(obj)/main.o -OBJ_bootph := $(obj)/head.o $(obj)/bootp.o -OBJ_bootpzh := $(obj)/head.o $(obj)/bootpz.o $(obj)/misc.o +OBJ_bootlx := $(obj)/head.o $(obj)/stdio.o $(obj)/main.o +OBJ_bootph := $(obj)/head.o $(obj)/stdio.o $(obj)/bootp.o +OBJ_bootpzh := $(obj)/head.o $(obj)/stdio.o $(obj)/bootpz.o $(obj)/misc.o $(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) $(LIBS_Y) FORCE $(call if_changed,ld) diff --git a/arch/alpha/boot/bootloader.lds b/arch/alpha/boot/bootloader.lds index 31c081ce1d50..8cdff54c6e41 100644 --- a/arch/alpha/boot/bootloader.lds +++ b/arch/alpha/boot/bootloader.lds @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ OUTPUT_FORMAT("elf64-alpha") ENTRY(__start) printk = srm_printk; diff --git a/arch/alpha/boot/bootp.c b/arch/alpha/boot/bootp.c index 2a542a506557..842e85776cc0 100644 --- a/arch/alpha/boot/bootp.c +++ b/arch/alpha/boot/bootp.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/boot/bootp.c * @@ -15,15 +16,14 @@ #include <asm/console.h> #include <asm/hwrpb.h> -#include <asm/pgtable.h> #include <asm/io.h> -#include <stdarg.h> +#include <linux/stdarg.h> #include "ksize.h" extern unsigned long switch_to_osf_pal(unsigned long nr, - struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa, + struct pcb_struct *pcb_va, struct pcb_struct *pcb_pa, unsigned long *vptb); extern void move_stack(unsigned long new_stack); diff --git a/arch/alpha/boot/bootpz.c b/arch/alpha/boot/bootpz.c index d6ad191698da..c6079308eab3 100644 --- a/arch/alpha/boot/bootpz.c +++ b/arch/alpha/boot/bootpz.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/boot/bootpz.c * @@ -17,10 +18,9 @@ #include <asm/console.h> #include <asm/hwrpb.h> -#include <asm/pgtable.h> #include <asm/io.h> -#include <stdarg.h> +#include <linux/stdarg.h> #include "kzsize.h" @@ -200,7 +200,7 @@ extern char _end; START_ADDR KSEG address of the entry point of kernel code. ZERO_PGE KSEG address of page full of zeroes, but - upon entry to kerne cvan be expected + upon entry to kernel, it can be expected to hold the parameter list and possible INTRD information. diff --git a/arch/alpha/boot/head.S b/arch/alpha/boot/head.S index 8efb26686d47..06a7c95fe9ad 100644 --- a/arch/alpha/boot/head.S +++ b/arch/alpha/boot/head.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/boot/head.S * diff --git a/arch/alpha/boot/main.c b/arch/alpha/boot/main.c index 3baf2d1e908d..22a1cb0264af 100644 --- a/arch/alpha/boot/main.c +++ b/arch/alpha/boot/main.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/boot/main.c * @@ -13,13 +14,11 @@ #include <asm/console.h> #include <asm/hwrpb.h> -#include <asm/pgtable.h> -#include <stdarg.h> +#include <linux/stdarg.h> #include "ksize.h" -extern int vsprintf(char *, const char *, va_list); extern unsigned long switch_to_osf_pal(unsigned long nr, struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa, unsigned long *vptb); diff --git a/arch/alpha/boot/misc.c b/arch/alpha/boot/misc.c index 3ff9a957a25c..1ab91852d9f7 100644 --- a/arch/alpha/boot/misc.c +++ b/arch/alpha/boot/misc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * misc.c * @@ -21,7 +22,7 @@ #include <linux/kernel.h> #include <linux/slab.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #define memzero(s,n) memset ((s),0,(n)) #define puts srm_printk @@ -29,7 +30,7 @@ extern long srm_printk(const char *, ...) __attribute__ ((format (printf, 1, 2))); /* - * gzip delarations + * gzip declarations */ #define OF(args) args #define STATIC static @@ -88,8 +89,6 @@ static ulg output_ptr; static ulg bytes_out; static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); extern int end; static ulg free_mem_ptr; diff --git a/arch/alpha/boot/stdio.c b/arch/alpha/boot/stdio.c new file mode 100644 index 000000000000..faa5234b90b8 --- /dev/null +++ b/arch/alpha/boot/stdio.c @@ -0,0 +1,302 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) Paul Mackerras 1997. + */ +#include <linux/string.h> +#include <linux/stdarg.h> + +size_t strnlen(const char * s, size_t count) +{ + const char *sc; + + for (sc = s; count-- && *sc != '\0'; ++sc) + /* nothing */; + return sc - s; +} + +# define do_div(n, base) ({ \ + unsigned int __base = (base); \ + unsigned int __rem; \ + __rem = ((unsigned long long)(n)) % __base; \ + (n) = ((unsigned long long)(n)) / __base; \ + __rem; \ +}) + + +static int skip_atoi(const char **s) +{ + int i, c; + + for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s) + i = i*10 + c - '0'; + return i; +} + +#define ZEROPAD 1 /* pad with zero */ +#define SIGN 2 /* unsigned/signed long */ +#define PLUS 4 /* show plus */ +#define SPACE 8 /* space if plus */ +#define LEFT 16 /* left justified */ +#define SPECIAL 32 /* 0x */ +#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */ + +static char * number(char * str, unsigned long long num, int base, int size, int precision, int type) +{ + char c, sign, tmp[66]; + const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; + int i; + + if (type & LARGE) + digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + if (type & LEFT) + type &= ~ZEROPAD; + if (base < 2 || base > 36) + return 0; + c = (type & ZEROPAD) ? '0' : ' '; + sign = 0; + if (type & SIGN) { + if ((signed long long)num < 0) { + sign = '-'; + num = - (signed long long)num; + size--; + } else if (type & PLUS) { + sign = '+'; + size--; + } else if (type & SPACE) { + sign = ' '; + size--; + } + } + if (type & SPECIAL) { + if (base == 16) + size -= 2; + else if (base == 8) + size--; + } + i = 0; + if (num == 0) + tmp[i++]='0'; + else while (num != 0) { + tmp[i++] = digits[do_div(num, base)]; + } + if (i > precision) + precision = i; + size -= precision; + if (!(type&(ZEROPAD+LEFT))) + while (size-- > 0) + *str++ = ' '; + if (sign) + *str++ = sign; + if (type & SPECIAL) { + if (base==8) + *str++ = '0'; + else if (base == 16) { + *str++ = '0'; + *str++ = digits[33]; + } + } + if (!(type & LEFT)) + while (size-- > 0) + *str++ = c; + while (i < precision--) + *str++ = '0'; + while (i-- > 0) + *str++ = tmp[i]; + while (size-- > 0) + *str++ = ' '; + return str; +} + +int vsprintf(char *buf, const char *fmt, va_list args) +{ + int len; + unsigned long long num; + int i, base; + char * str; + const char *s; + + int flags; /* flags to number() */ + + int field_width; /* width of output field */ + int precision; /* min. # of digits for integers; max + number of chars for from string */ + int qualifier; /* 'h', 'l', or 'L' for integer fields */ + /* 'z' support added 23/7/1999 S.H. */ + /* 'z' changed to 'Z' --davidm 1/25/99 */ + + + for (str = buf ; *fmt ; ++fmt) { + if (*fmt != '%') { + *str++ = *fmt; + continue; + } + + /* process flags */ + flags = 0; + repeat: + ++fmt; /* this also skips first '%' */ + switch (*fmt) { + case '-': flags |= LEFT; goto repeat; + case '+': flags |= PLUS; goto repeat; + case ' ': flags |= SPACE; goto repeat; + case '#': flags |= SPECIAL; goto repeat; + case '0': flags |= ZEROPAD; goto repeat; + } + + /* get field width */ + field_width = -1; + if ('0' <= *fmt && *fmt <= '9') + field_width = skip_atoi(&fmt); + else if (*fmt == '*') { + ++fmt; + /* it's the next argument */ + field_width = va_arg(args, int); + if (field_width < 0) { + field_width = -field_width; + flags |= LEFT; + } + } + + /* get the precision */ + precision = -1; + if (*fmt == '.') { + ++fmt; + if ('0' <= *fmt && *fmt <= '9') + precision = skip_atoi(&fmt); + else if (*fmt == '*') { + ++fmt; + /* it's the next argument */ + precision = va_arg(args, int); + } + if (precision < 0) + precision = 0; + } + + /* get the conversion qualifier */ + qualifier = -1; + if (*fmt == 'l' && *(fmt + 1) == 'l') { + qualifier = 'q'; + fmt += 2; + } else if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L' + || *fmt == 'Z') { + qualifier = *fmt; + ++fmt; + } + + /* default base */ + base = 10; + + switch (*fmt) { + case 'c': + if (!(flags & LEFT)) + while (--field_width > 0) + *str++ = ' '; + *str++ = (unsigned char) va_arg(args, int); + while (--field_width > 0) + *str++ = ' '; + continue; + + case 's': + s = va_arg(args, char *); + if (!s) + s = "<NULL>"; + + len = strnlen(s, precision); + + if (!(flags & LEFT)) + while (len < field_width--) + *str++ = ' '; + for (i = 0; i < len; ++i) + *str++ = *s++; + while (len < field_width--) + *str++ = ' '; + continue; + + case 'p': + if (field_width == -1) { + field_width = 2*sizeof(void *); + flags |= ZEROPAD; + } + str = number(str, + (unsigned long) va_arg(args, void *), 16, + field_width, precision, flags); + continue; + + + case 'n': + if (qualifier == 'l') { + long * ip = va_arg(args, long *); + *ip = (str - buf); + } else if (qualifier == 'Z') { + size_t * ip = va_arg(args, size_t *); + *ip = (str - buf); + } else { + int * ip = va_arg(args, int *); + *ip = (str - buf); + } + continue; + + case '%': + *str++ = '%'; + continue; + + /* integer number formats - set up the flags and "break" */ + case 'o': + base = 8; + break; + + case 'X': + flags |= LARGE; + case 'x': + base = 16; + break; + + case 'd': + case 'i': + flags |= SIGN; + case 'u': + break; + + default: + *str++ = '%'; + if (*fmt) + *str++ = *fmt; + else + --fmt; + continue; + } + if (qualifier == 'l') { + num = va_arg(args, unsigned long); + if (flags & SIGN) + num = (signed long) num; + } else if (qualifier == 'q') { + num = va_arg(args, unsigned long long); + if (flags & SIGN) + num = (signed long long) num; + } else if (qualifier == 'Z') { + num = va_arg(args, size_t); + } else if (qualifier == 'h') { + num = (unsigned short) va_arg(args, int); + if (flags & SIGN) + num = (signed short) num; + } else { + num = va_arg(args, unsigned int); + if (flags & SIGN) + num = (signed int) num; + } + str = number(str, num, base, field_width, precision, flags); + } + *str = '\0'; + return str-buf; +} + +int sprintf(char * buf, const char *fmt, ...) +{ + va_list args; + int i; + + va_start(args, fmt); + i = vsprintf(buf, fmt, args); + va_end(args); + return i; +} diff --git a/arch/alpha/boot/tools/mkbb.c b/arch/alpha/boot/tools/mkbb.c index 1185778e6a1e..fc47f33f8a44 100644 --- a/arch/alpha/boot/tools/mkbb.c +++ b/arch/alpha/boot/tools/mkbb.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* This utility makes a bootblock suitable for the SRM console/miniloader */ /* Usage: diff --git a/arch/alpha/boot/tools/objstrip.c b/arch/alpha/boot/tools/objstrip.c index 367d53d031fc..7cf92d172dce 100644 --- a/arch/alpha/boot/tools/objstrip.c +++ b/arch/alpha/boot/tools/objstrip.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/boot/tools/objstrip.c * @@ -27,6 +28,9 @@ #include <linux/param.h> #ifdef __ELF__ # include <linux/elf.h> +# define elfhdr elf64_hdr +# define elf_phdr elf64_phdr +# define elf_check_arch(x) ((x)->e_machine == EM_ALPHA) #endif /* bootfile size must be multiple of BLOCK_SIZE: */ @@ -144,7 +148,7 @@ main (int argc, char *argv[]) #ifdef __ELF__ elf = (struct elfhdr *) buf; - if (elf->e_ident[0] == 0x7f && strncmp((char *)elf->e_ident + 1, "ELF", 3) == 0) { + if (memcmp(&elf->e_ident[EI_MAG0], ELFMAG, SELFMAG) == 0) { if (elf->e_type != ET_EXEC) { fprintf(stderr, "%s: %s is not an ELF executable\n", prog_name, inname); diff --git a/arch/alpha/defconfig b/arch/alpha/configs/defconfig index 539e8b5a6cbd..3280bd9e6578 100644 --- a/arch/alpha/defconfig +++ b/arch/alpha/configs/defconfig @@ -1,4 +1,3 @@ -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_LOG_BUF_SHIFT=14 @@ -19,7 +18,6 @@ CONFIG_INET_AH=m CONFIG_INET_ESP=m # CONFIG_IPV6 is not set CONFIG_NETFILTER=y -CONFIG_IP_NF_QUEUE=m CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_FILTER=m CONFIG_VLAN_8021Q=m @@ -27,37 +25,32 @@ CONFIG_PNP=y CONFIG_ISAPNP=y CONFIG_BLK_DEV_FD=y CONFIG_BLK_DEV_LOOP=m -CONFIG_IDE=y -CONFIG_BLK_DEV_IDECD=y -CONFIG_IDE_GENERIC=y -CONFIG_BLK_DEV_GENERIC=y -CONFIG_BLK_DEV_ALI15X3=y -CONFIG_BLK_DEV_CMD64X=y -CONFIG_BLK_DEV_CY82C693=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_SCSI_AIC7XXX=m CONFIG_AIC7XXX_CMDS_PER_DEVICE=253 # CONFIG_AIC7XXX_DEBUG_ENABLE is not set +CONFIG_ATA=y +# CONFIG_SATA_PMP is not set +CONFIG_PATA_ALI=y +CONFIG_PATA_CMD64X=y +CONFIG_PATA_CYPRESS=y +CONFIG_ATA_GENERIC=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m -CONFIG_NET_ETHERNET=y CONFIG_NET_VENDOR_3COM=y CONFIG_VORTEX=y CONFIG_NET_TULIP=y CONFIG_DE2104X=m CONFIG_TULIP=y CONFIG_TULIP_MMIO=y -CONFIG_NET_PCI=y CONFIG_YELLOWFIN=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_RTC=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_CMOS=y CONFIG_EXT2_FS=y -CONFIG_REISERFS_FS=m -CONFIG_AUTOFS_FS=m CONFIG_ISO9660_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y @@ -66,11 +59,11 @@ CONFIG_TMPFS=y CONFIG_NFS_FS=m CONFIG_NFS_V3=y CONFIG_NFSD=m -CONFIG_NFSD_V3=y CONFIG_NLS_CODEPAGE_437=y CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y -CONFIG_DEBUG_INFO=y +CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y CONFIG_ALPHA_LEGACY_START_ADDRESS=y CONFIG_MATHEMU=y CONFIG_CRYPTO_HMAC=y +CONFIG_DEVTMPFS=y diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild index a6e85f448c1c..483965c5a4de 100644 --- a/arch/alpha/include/asm/Kbuild +++ b/arch/alpha/include/asm/Kbuild @@ -1,5 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0 -generic-y += clkdev.h - -generic-y += exec.h -generic-y += trace_clock.h +generated-y += syscall_table.h +generic-y += agp.h +generic-y += asm-offsets.h +generic-y += kvm_para.h +generic-y += mcs_spinlock.h +generic-y += text-patching.h diff --git a/arch/alpha/include/asm/a.out-core.h b/arch/alpha/include/asm/a.out-core.h deleted file mode 100644 index 9e33e92e524c..000000000000 --- a/arch/alpha/include/asm/a.out-core.h +++ /dev/null @@ -1,80 +0,0 @@ -/* a.out coredump register dumper - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - -#ifndef _ASM_A_OUT_CORE_H -#define _ASM_A_OUT_CORE_H - -#ifdef __KERNEL__ - -#include <linux/user.h> - -/* - * Fill in the user structure for an ECOFF core dump. - */ -static inline void aout_dump_thread(struct pt_regs *pt, struct user *dump) -{ - /* switch stack follows right below pt_regs: */ - struct switch_stack * sw = ((struct switch_stack *) pt) - 1; - - dump->magic = CMAGIC; - dump->start_code = current->mm->start_code; - dump->start_data = current->mm->start_data; - dump->start_stack = rdusp() & ~(PAGE_SIZE - 1); - dump->u_tsize = ((current->mm->end_code - dump->start_code) - >> PAGE_SHIFT); - dump->u_dsize = ((current->mm->brk + PAGE_SIZE-1 - dump->start_data) - >> PAGE_SHIFT); - dump->u_ssize = (current->mm->start_stack - dump->start_stack - + PAGE_SIZE-1) >> PAGE_SHIFT; - - /* - * We store the registers in an order/format that is - * compatible with DEC Unix/OSF/1 as this makes life easier - * for gdb. - */ - dump->regs[EF_V0] = pt->r0; - dump->regs[EF_T0] = pt->r1; - dump->regs[EF_T1] = pt->r2; - dump->regs[EF_T2] = pt->r3; - dump->regs[EF_T3] = pt->r4; - dump->regs[EF_T4] = pt->r5; - dump->regs[EF_T5] = pt->r6; - dump->regs[EF_T6] = pt->r7; - dump->regs[EF_T7] = pt->r8; - dump->regs[EF_S0] = sw->r9; - dump->regs[EF_S1] = sw->r10; - dump->regs[EF_S2] = sw->r11; - dump->regs[EF_S3] = sw->r12; - dump->regs[EF_S4] = sw->r13; - dump->regs[EF_S5] = sw->r14; - dump->regs[EF_S6] = sw->r15; - dump->regs[EF_A3] = pt->r19; - dump->regs[EF_A4] = pt->r20; - dump->regs[EF_A5] = pt->r21; - dump->regs[EF_T8] = pt->r22; - dump->regs[EF_T9] = pt->r23; - dump->regs[EF_T10] = pt->r24; - dump->regs[EF_T11] = pt->r25; - dump->regs[EF_RA] = pt->r26; - dump->regs[EF_T12] = pt->r27; - dump->regs[EF_AT] = pt->r28; - dump->regs[EF_SP] = rdusp(); - dump->regs[EF_PS] = pt->ps; - dump->regs[EF_PC] = pt->pc; - dump->regs[EF_GP] = pt->gp; - dump->regs[EF_A0] = pt->r16; - dump->regs[EF_A1] = pt->r17; - dump->regs[EF_A2] = pt->r18; - memcpy((char *)dump->regs + EF_SIZE, sw->fp, 32 * 8); -} - -#endif /* __KERNEL__ */ -#endif /* _ASM_A_OUT_CORE_H */ diff --git a/arch/alpha/include/asm/a.out.h b/arch/alpha/include/asm/a.out.h deleted file mode 100644 index 9abbd2455306..000000000000 --- a/arch/alpha/include/asm/a.out.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef __ALPHA_A_OUT_H__ -#define __ALPHA_A_OUT_H__ - -#include <uapi/asm/a.out.h> - - -/* Assume that start addresses below 4G belong to a TASO application. - Unfortunately, there is no proper bit in the exec header to check. - Worse, we have to notice the start address before swapping to use - /sbin/loader, which of course is _not_ a TASO application. */ -#define SET_AOUT_PERSONALITY(BFPM, EX) \ - set_personality (((BFPM->taso || EX.ah.entry < 0x100000000L \ - ? ADDR_LIMIT_32BIT : 0) | PER_OSF4)) - -#endif /* __A_OUT_GNU_H__ */ diff --git a/arch/alpha/include/asm/agp.h b/arch/alpha/include/asm/agp.h deleted file mode 100644 index a94d48b8677f..000000000000 --- a/arch/alpha/include/asm/agp.h +++ /dev/null @@ -1,18 +0,0 @@ -#ifndef AGP_H -#define AGP_H 1 - -#include <asm/io.h> - -/* dummy for now */ - -#define map_page_into_agp(page) -#define unmap_page_from_agp(page) -#define flush_agp_cache() mb() - -/* GATT allocation. Returns/accepts GATT kernel virtual address. */ -#define alloc_gatt_pages(order) \ - ((char *)__get_free_pages(GFP_KERNEL, (order))) -#define free_gatt_pages(table, order) \ - free_pages((unsigned long)(table), (order)) - -#endif diff --git a/arch/alpha/include/asm/agp_backend.h b/arch/alpha/include/asm/agp_backend.h index 55dd44a2cea7..2718802407d6 100644 --- a/arch/alpha/include/asm/agp_backend.h +++ b/arch/alpha/include/asm/agp_backend.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_AGP_BACKEND_H #define _ALPHA_AGP_BACKEND_H 1 diff --git a/arch/alpha/include/asm/asm-offsets.h b/arch/alpha/include/asm/asm-offsets.h deleted file mode 100644 index d370ee36a182..000000000000 --- a/arch/alpha/include/asm/asm-offsets.h +++ /dev/null @@ -1 +0,0 @@ -#include <generated/asm-offsets.h> diff --git a/arch/alpha/include/asm/asm-prototypes.h b/arch/alpha/include/asm/asm-prototypes.h new file mode 100644 index 000000000000..c8ae46fc2e74 --- /dev/null +++ b/arch/alpha/include/asm/asm-prototypes.h @@ -0,0 +1,19 @@ +#include <linux/spinlock.h> + +#include <asm/checksum.h> +#include <asm/console.h> +#include <asm/page.h> +#include <asm/string.h> +#include <linux/uaccess.h> + +#include <asm-generic/asm-prototypes.h> + +extern void __divl(void); +extern void __reml(void); +extern void __divq(void); +extern void __remq(void); +extern void __divlu(void); +extern void __remlu(void); +extern void __divqu(void); +extern void __remqu(void); +extern unsigned long __udiv_qrnnd(unsigned long *, unsigned long, unsigned long , unsigned long); diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h index c2cbe4fc391c..cbd9244571af 100644 --- a/arch/alpha/include/asm/atomic.h +++ b/arch/alpha/include/asm/atomic.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_ATOMIC_H #define _ALPHA_ATOMIC_H @@ -13,15 +14,23 @@ * than regular operations. */ +/* + * To ensure dependency ordering is preserved for the _relaxed and + * _release atomics, an smp_mb() is unconditionally inserted into the + * _relaxed variants, which are used to build the barriered versions. + * Avoid redundant back-to-back fences in the _acquire and _fence + * versions. + */ +#define __atomic_acquire_fence() +#define __atomic_post_full_fence() -#define ATOMIC_INIT(i) { (i) } #define ATOMIC64_INIT(i) { (i) } -#define atomic_read(v) (*(volatile int *)&(v)->counter) -#define atomic64_read(v) (*(volatile long *)&(v)->counter) +#define arch_atomic_read(v) READ_ONCE((v)->counter) +#define arch_atomic64_read(v) READ_ONCE((v)->counter) -#define atomic_set(v,i) ((v)->counter = (i)) -#define atomic64_set(v,i) ((v)->counter = (i)) +#define arch_atomic_set(v,i) WRITE_ONCE((v)->counter, (i)) +#define arch_atomic64_set(v,i) WRITE_ONCE((v)->counter, (i)) /* * To get proper branch prediction for the main line, we must branch @@ -29,230 +38,234 @@ * branch back to restart the operation. */ -static __inline__ void atomic_add(int i, atomic_t * v) -{ - unsigned long temp; - __asm__ __volatile__( - "1: ldl_l %0,%1\n" - " addl %0,%2,%0\n" - " stl_c %0,%1\n" - " beq %0,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (temp), "=m" (v->counter) - :"Ir" (i), "m" (v->counter)); +#define ATOMIC_OP(op, asm_op) \ +static __inline__ void arch_atomic_##op(int i, atomic_t * v) \ +{ \ + unsigned long temp; \ + __asm__ __volatile__( \ + "1: ldl_l %0,%1\n" \ + " " #asm_op " %0,%2,%0\n" \ + " stl_c %0,%1\n" \ + " beq %0,2f\n" \ + ".subsection 2\n" \ + "2: br 1b\n" \ + ".previous" \ + :"=&r" (temp), "=m" (v->counter) \ + :"Ir" (i), "m" (v->counter)); \ +} \ + +#define ATOMIC_OP_RETURN(op, asm_op) \ +static inline int arch_atomic_##op##_return_relaxed(int i, atomic_t *v) \ +{ \ + long temp, result; \ + __asm__ __volatile__( \ + "1: ldl_l %0,%1\n" \ + " " #asm_op " %0,%3,%2\n" \ + " " #asm_op " %0,%3,%0\n" \ + " stl_c %0,%1\n" \ + " beq %0,2f\n" \ + ".subsection 2\n" \ + "2: br 1b\n" \ + ".previous" \ + :"=&r" (temp), "=m" (v->counter), "=&r" (result) \ + :"Ir" (i), "m" (v->counter) : "memory"); \ + smp_mb(); \ + return result; \ } -static __inline__ void atomic64_add(long i, atomic64_t * v) -{ - unsigned long temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%2,%0\n" - " stq_c %0,%1\n" - " beq %0,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (temp), "=m" (v->counter) - :"Ir" (i), "m" (v->counter)); -} - -static __inline__ void atomic_sub(int i, atomic_t * v) -{ - unsigned long temp; - __asm__ __volatile__( - "1: ldl_l %0,%1\n" - " subl %0,%2,%0\n" - " stl_c %0,%1\n" - " beq %0,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (temp), "=m" (v->counter) - :"Ir" (i), "m" (v->counter)); +#define ATOMIC_FETCH_OP(op, asm_op) \ +static inline int arch_atomic_fetch_##op##_relaxed(int i, atomic_t *v) \ +{ \ + long temp, result; \ + __asm__ __volatile__( \ + "1: ldl_l %2,%1\n" \ + " " #asm_op " %2,%3,%0\n" \ + " stl_c %0,%1\n" \ + " beq %0,2f\n" \ + ".subsection 2\n" \ + "2: br 1b\n" \ + ".previous" \ + :"=&r" (temp), "=m" (v->counter), "=&r" (result) \ + :"Ir" (i), "m" (v->counter) : "memory"); \ + smp_mb(); \ + return result; \ } -static __inline__ void atomic64_sub(long i, atomic64_t * v) -{ - unsigned long temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " subq %0,%2,%0\n" - " stq_c %0,%1\n" - " beq %0,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (temp), "=m" (v->counter) - :"Ir" (i), "m" (v->counter)); +#define ATOMIC64_OP(op, asm_op) \ +static __inline__ void arch_atomic64_##op(s64 i, atomic64_t * v) \ +{ \ + s64 temp; \ + __asm__ __volatile__( \ + "1: ldq_l %0,%1\n" \ + " " #asm_op " %0,%2,%0\n" \ + " stq_c %0,%1\n" \ + " beq %0,2f\n" \ + ".subsection 2\n" \ + "2: br 1b\n" \ + ".previous" \ + :"=&r" (temp), "=m" (v->counter) \ + :"Ir" (i), "m" (v->counter)); \ +} \ + +#define ATOMIC64_OP_RETURN(op, asm_op) \ +static __inline__ s64 \ +arch_atomic64_##op##_return_relaxed(s64 i, atomic64_t * v) \ +{ \ + s64 temp, result; \ + __asm__ __volatile__( \ + "1: ldq_l %0,%1\n" \ + " " #asm_op " %0,%3,%2\n" \ + " " #asm_op " %0,%3,%0\n" \ + " stq_c %0,%1\n" \ + " beq %0,2f\n" \ + ".subsection 2\n" \ + "2: br 1b\n" \ + ".previous" \ + :"=&r" (temp), "=m" (v->counter), "=&r" (result) \ + :"Ir" (i), "m" (v->counter) : "memory"); \ + smp_mb(); \ + return result; \ } - -/* - * Same as above, but return the result value - */ -static inline int atomic_add_return(int i, atomic_t *v) -{ - long temp, result; - smp_mb(); - __asm__ __volatile__( - "1: ldl_l %0,%1\n" - " addl %0,%3,%2\n" - " addl %0,%3,%0\n" - " stl_c %0,%1\n" - " beq %0,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (temp), "=m" (v->counter), "=&r" (result) - :"Ir" (i), "m" (v->counter) : "memory"); - smp_mb(); - return result; +#define ATOMIC64_FETCH_OP(op, asm_op) \ +static __inline__ s64 \ +arch_atomic64_fetch_##op##_relaxed(s64 i, atomic64_t * v) \ +{ \ + s64 temp, result; \ + __asm__ __volatile__( \ + "1: ldq_l %2,%1\n" \ + " " #asm_op " %2,%3,%0\n" \ + " stq_c %0,%1\n" \ + " beq %0,2f\n" \ + ".subsection 2\n" \ + "2: br 1b\n" \ + ".previous" \ + :"=&r" (temp), "=m" (v->counter), "=&r" (result) \ + :"Ir" (i), "m" (v->counter) : "memory"); \ + smp_mb(); \ + return result; \ } -static __inline__ long atomic64_add_return(long i, atomic64_t * v) +#define ATOMIC_OPS(op) \ + ATOMIC_OP(op, op##l) \ + ATOMIC_OP_RETURN(op, op##l) \ + ATOMIC_FETCH_OP(op, op##l) \ + ATOMIC64_OP(op, op##q) \ + ATOMIC64_OP_RETURN(op, op##q) \ + ATOMIC64_FETCH_OP(op, op##q) + +ATOMIC_OPS(add) +ATOMIC_OPS(sub) + +#define arch_atomic_add_return_relaxed arch_atomic_add_return_relaxed +#define arch_atomic_sub_return_relaxed arch_atomic_sub_return_relaxed +#define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add_relaxed +#define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub_relaxed + +#define arch_atomic64_add_return_relaxed arch_atomic64_add_return_relaxed +#define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return_relaxed +#define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add_relaxed +#define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub_relaxed + +#define arch_atomic_andnot arch_atomic_andnot +#define arch_atomic64_andnot arch_atomic64_andnot + +#undef ATOMIC_OPS +#define ATOMIC_OPS(op, asm) \ + ATOMIC_OP(op, asm) \ + ATOMIC_FETCH_OP(op, asm) \ + ATOMIC64_OP(op, asm) \ + ATOMIC64_FETCH_OP(op, asm) + +ATOMIC_OPS(and, and) +ATOMIC_OPS(andnot, bic) +ATOMIC_OPS(or, bis) +ATOMIC_OPS(xor, xor) + +#define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and_relaxed +#define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed +#define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or_relaxed +#define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor_relaxed + +#define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and_relaxed +#define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed +#define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or_relaxed +#define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor_relaxed + +#undef ATOMIC_OPS +#undef ATOMIC64_FETCH_OP +#undef ATOMIC64_OP_RETURN +#undef ATOMIC64_OP +#undef ATOMIC_FETCH_OP +#undef ATOMIC_OP_RETURN +#undef ATOMIC_OP + +static __inline__ int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u) { - long temp, result; + int c, new, old; smp_mb(); __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%3,%2\n" - " addq %0,%3,%0\n" - " stq_c %0,%1\n" - " beq %0,2f\n" + "1: ldl_l %[old],%[mem]\n" + " cmpeq %[old],%[u],%[c]\n" + " addl %[old],%[a],%[new]\n" + " bne %[c],2f\n" + " stl_c %[new],%[mem]\n" + " beq %[new],3f\n" + "2:\n" ".subsection 2\n" - "2: br 1b\n" + "3: br 1b\n" ".previous" - :"=&r" (temp), "=m" (v->counter), "=&r" (result) - :"Ir" (i), "m" (v->counter) : "memory"); + : [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c) + : [mem] "m"(*v), [a] "rI"(a), [u] "rI"((long)u) + : "memory"); smp_mb(); - return result; + return old; } +#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless -static __inline__ long atomic_sub_return(int i, atomic_t * v) +static __inline__ s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u) { - long temp, result; + s64 c, new, old; smp_mb(); __asm__ __volatile__( - "1: ldl_l %0,%1\n" - " subl %0,%3,%2\n" - " subl %0,%3,%0\n" - " stl_c %0,%1\n" - " beq %0,2f\n" + "1: ldq_l %[old],%[mem]\n" + " cmpeq %[old],%[u],%[c]\n" + " addq %[old],%[a],%[new]\n" + " bne %[c],2f\n" + " stq_c %[new],%[mem]\n" + " beq %[new],3f\n" + "2:\n" ".subsection 2\n" - "2: br 1b\n" + "3: br 1b\n" ".previous" - :"=&r" (temp), "=m" (v->counter), "=&r" (result) - :"Ir" (i), "m" (v->counter) : "memory"); + : [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c) + : [mem] "m"(*v), [a] "rI"(a), [u] "rI"(u) + : "memory"); smp_mb(); - return result; + return old; } +#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless -static __inline__ long atomic64_sub_return(long i, atomic64_t * v) +static inline s64 arch_atomic64_dec_if_positive(atomic64_t *v) { - long temp, result; + s64 old, tmp; smp_mb(); __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " subq %0,%3,%2\n" - " subq %0,%3,%0\n" - " stq_c %0,%1\n" - " beq %0,2f\n" + "1: ldq_l %[old],%[mem]\n" + " subq %[old],1,%[tmp]\n" + " ble %[old],2f\n" + " stq_c %[tmp],%[mem]\n" + " beq %[tmp],3f\n" + "2:\n" ".subsection 2\n" - "2: br 1b\n" + "3: br 1b\n" ".previous" - :"=&r" (temp), "=m" (v->counter), "=&r" (result) - :"Ir" (i), "m" (v->counter) : "memory"); + : [old] "=&r"(old), [tmp] "=&r"(tmp) + : [mem] "m"(*v) + : "memory"); smp_mb(); - return result; -} - -#define atomic64_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new)) -#define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) - -#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new)) -#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) - -/** - * __atomic_add_unless - add unless the number is a given value - * @v: pointer of type atomic_t - * @a: the amount to add to v... - * @u: ...unless v is equal to u. - * - * Atomically adds @a to @v, so long as it was not @u. - * Returns the old value of @v. - */ -static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) -{ - int c, old; - c = atomic_read(v); - for (;;) { - if (unlikely(c == (u))) - break; - old = atomic_cmpxchg((v), c, c + (a)); - if (likely(old == c)) - break; - c = old; - } - return c; -} - - -/** - * atomic64_add_unless - add unless the number is a given value - * @v: pointer of type atomic64_t - * @a: the amount to add to v... - * @u: ...unless v is equal to u. - * - * Atomically adds @a to @v, so long as it was not @u. - * Returns the old value of @v. - */ -static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) -{ - long c, old; - c = atomic64_read(v); - for (;;) { - if (unlikely(c == (u))) - break; - old = atomic64_cmpxchg((v), c, c + (a)); - if (likely(old == c)) - break; - c = old; - } - return c != (u); + return old - 1; } - -#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) - -#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) -#define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0) - -#define atomic_dec_return(v) atomic_sub_return(1,(v)) -#define atomic64_dec_return(v) atomic64_sub_return(1,(v)) - -#define atomic_inc_return(v) atomic_add_return(1,(v)) -#define atomic64_inc_return(v) atomic64_add_return(1,(v)) - -#define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0) -#define atomic64_sub_and_test(i,v) (atomic64_sub_return((i), (v)) == 0) - -#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0) -#define atomic64_inc_and_test(v) (atomic64_add_return(1, (v)) == 0) - -#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) -#define atomic64_dec_and_test(v) (atomic64_sub_return(1, (v)) == 0) - -#define atomic_inc(v) atomic_add(1,(v)) -#define atomic64_inc(v) atomic64_add(1,(v)) - -#define atomic_dec(v) atomic_sub(1,(v)) -#define atomic64_dec(v) atomic64_sub(1,(v)) - -#define smp_mb__before_atomic_dec() smp_mb() -#define smp_mb__after_atomic_dec() smp_mb() -#define smp_mb__before_atomic_inc() smp_mb() -#define smp_mb__after_atomic_inc() smp_mb() +#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive #endif /* _ALPHA_ATOMIC_H */ diff --git a/arch/alpha/include/asm/barrier.h b/arch/alpha/include/asm/barrier.h index ce8860a0b32d..c56bfffc9918 100644 --- a/arch/alpha/include/asm/barrier.h +++ b/arch/alpha/include/asm/barrier.h @@ -1,35 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __BARRIER_H #define __BARRIER_H -#include <asm/compiler.h> +#define mb() __asm__ __volatile__("mb": : :"memory") +#define rmb() __asm__ __volatile__("mb": : :"memory") +#define wmb() __asm__ __volatile__("wmb": : :"memory") -#define mb() \ -__asm__ __volatile__("mb": : :"memory") - -#define rmb() \ -__asm__ __volatile__("mb": : :"memory") - -#define wmb() \ -__asm__ __volatile__("wmb": : :"memory") - -#define read_barrier_depends() \ -__asm__ __volatile__("mb": : :"memory") +#define __smp_load_acquire(p) \ +({ \ + compiletime_assert_atomic_type(*p); \ + __READ_ONCE(*p); \ +}) #ifdef CONFIG_SMP #define __ASM_SMP_MB "\tmb\n" -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#define smp_read_barrier_depends() read_barrier_depends() #else #define __ASM_SMP_MB -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#define smp_read_barrier_depends() do { } while (0) #endif -#define set_mb(var, value) \ -do { var = value; mb(); } while (0) +#include <asm-generic/barrier.h> #endif /* __BARRIER_H */ diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h index a19ba5efea4c..76e4343c090f 100644 --- a/arch/alpha/include/asm/bitops.h +++ b/arch/alpha/include/asm/bitops.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_BITOPS_H #define _ALPHA_BITOPS_H @@ -45,17 +46,14 @@ set_bit(unsigned long nr, volatile void * addr) /* * WARNING: non atomic version. */ -static inline void -__set_bit(unsigned long nr, volatile void * addr) +static __always_inline void +arch___set_bit(unsigned long nr, volatile unsigned long *addr) { int *m = ((int *) addr) + (nr >> 5); *m |= 1 << (nr & 31); } -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() - static inline void clear_bit(unsigned long nr, volatile void * addr) { @@ -84,8 +82,8 @@ clear_bit_unlock(unsigned long nr, volatile void * addr) /* * WARNING: non atomic version. */ -static __inline__ void -__clear_bit(unsigned long nr, volatile void * addr) +static __always_inline void +arch___clear_bit(unsigned long nr, volatile unsigned long *addr) { int *m = ((int *) addr) + (nr >> 5); @@ -96,7 +94,7 @@ static inline void __clear_bit_unlock(unsigned long nr, volatile void * addr) { smp_mb(); - __clear_bit(nr, addr); + arch___clear_bit(nr, addr); } static inline void @@ -120,8 +118,8 @@ change_bit(unsigned long nr, volatile void * addr) /* * WARNING: non atomic version. */ -static __inline__ void -__change_bit(unsigned long nr, volatile void * addr) +static __always_inline void +arch___change_bit(unsigned long nr, volatile unsigned long *addr) { int *m = ((int *) addr) + (nr >> 5); @@ -188,8 +186,8 @@ test_and_set_bit_lock(unsigned long nr, volatile void *addr) /* * WARNING: non atomic version. */ -static inline int -__test_and_set_bit(unsigned long nr, volatile void * addr) +static __always_inline bool +arch___test_and_set_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long mask = 1 << (nr & 0x1f); int *m = ((int *) addr) + (nr >> 5); @@ -232,8 +230,8 @@ test_and_clear_bit(unsigned long nr, volatile void * addr) /* * WARNING: non atomic version. */ -static inline int -__test_and_clear_bit(unsigned long nr, volatile void * addr) +static __always_inline bool +arch___test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long mask = 1 << (nr & 0x1f); int *m = ((int *) addr) + (nr >> 5); @@ -274,8 +272,8 @@ test_and_change_bit(unsigned long nr, volatile void * addr) /* * WARNING: non atomic version. */ -static __inline__ int -__test_and_change_bit(unsigned long nr, volatile void * addr) +static __always_inline bool +arch___test_and_change_bit(unsigned long nr, volatile unsigned long *addr) { unsigned long mask = 1 << (nr & 0x1f); int *m = ((int *) addr) + (nr >> 5); @@ -285,10 +283,27 @@ __test_and_change_bit(unsigned long nr, volatile void * addr) return (old & mask) != 0; } -static inline int -test_bit(int nr, const volatile void * addr) +#define arch_test_bit generic_test_bit +#define arch_test_bit_acquire generic_test_bit_acquire + +static inline bool xor_unlock_is_negative_byte(unsigned long mask, + volatile unsigned long *p) { - return (1UL & (((const int *) addr)[nr >> 5] >> (nr & 31))) != 0UL; + unsigned long temp, old; + + __asm__ __volatile__( + "1: ldl_l %0,%4\n" + " mov %0,%2\n" + " xor %0,%3,%0\n" + " stl_c %0,%1\n" + " beq %0,2f\n" + ".subsection 2\n" + "2: br 1b\n" + ".previous" + :"=&r" (temp), "=m" (*p), "=&r" (old) + :"Ir" (mask), "m" (*p)); + + return (old & BIT(7)) != 0; } /* @@ -313,7 +328,7 @@ static inline unsigned long ffz_b(unsigned long x) return sum; } -static inline unsigned long ffz(unsigned long word) +static inline unsigned long __attribute_const__ ffz(unsigned long word) { #if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67) /* Whee. EV67 can calculate it directly. */ @@ -333,7 +348,7 @@ static inline unsigned long ffz(unsigned long word) /* * __ffs = Find First set bit in word. Undefined if no set bit exists. */ -static inline unsigned long __ffs(unsigned long word) +static inline __attribute_const__ unsigned long __ffs(unsigned long word) { #if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67) /* Whee. EV67 can calculate it directly. */ @@ -358,7 +373,7 @@ static inline unsigned long __ffs(unsigned long word) * differs in spirit from the above __ffs. */ -static inline int ffs(int word) +static inline __attribute_const__ int ffs(int word) { int result = __ffs(word) + 1; return word ? result : 0; @@ -368,14 +383,14 @@ static inline int ffs(int word) * fls: find last bit set. */ #if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67) -static inline int fls64(unsigned long word) +static inline __attribute_const__ int fls64(unsigned long word) { return 64 - __kernel_ctlz(word); } #else extern const unsigned char __flsm1_tab[256]; -static inline int fls64(unsigned long x) +static inline __attribute_const__ int fls64(unsigned long x) { unsigned long t, a, r; @@ -388,14 +403,14 @@ static inline int fls64(unsigned long x) } #endif -static inline unsigned long __fls(unsigned long x) +static inline __attribute_const__ unsigned long __fls(unsigned long x) { return fls64(x) - 1; } -static inline int fls(int x) +static inline __attribute_const__ int fls(unsigned int x) { - return fls64((unsigned int) x); + return fls64(x); } /* @@ -432,8 +447,6 @@ static inline unsigned int __arch_hweight8(unsigned int w) #endif /* __KERNEL__ */ -#include <asm-generic/bitops/find.h> - #ifdef __KERNEL__ /* @@ -454,6 +467,8 @@ sched_find_first_bit(const unsigned long b[2]) return __ffs(tmp) + ofs; } +#include <asm-generic/bitops/non-instrumented-non-atomic.h> + #include <asm-generic/bitops/le.h> #include <asm-generic/bitops/ext2-atomic-setbit.h> diff --git a/arch/alpha/include/asm/bug.h b/arch/alpha/include/asm/bug.h index f091682e3cc8..b88ebdfedf7c 100644 --- a/arch/alpha/include/asm/bug.h +++ b/arch/alpha/include/asm/bug.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_BUG_H #define _ALPHA_BUG_H diff --git a/arch/alpha/include/asm/bugs.h b/arch/alpha/include/asm/bugs.h deleted file mode 100644 index 78030d1c7e7e..000000000000 --- a/arch/alpha/include/asm/bugs.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * include/asm-alpha/bugs.h - * - * Copyright (C) 1994 Linus Torvalds - */ - -/* - * This is included by init/main.c to check for architecture-dependent bugs. - * - * Needs: - * void check_bugs(void); - */ - -/* - * I don't know of any alpha bugs yet.. Nice chip - */ - -static void check_bugs(void) -{ -} diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h index ad368a93a46a..6ce508c68907 100644 --- a/arch/alpha/include/asm/cache.h +++ b/arch/alpha/include/asm/cache.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * include/asm-alpha/cache.h */ diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h index a9cb6aa447aa..36a7e924c3b9 100644 --- a/arch/alpha/include/asm/cacheflush.h +++ b/arch/alpha/include/asm/cacheflush.h @@ -1,21 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_CACHEFLUSH_H #define _ALPHA_CACHEFLUSH_H #include <linux/mm.h> -/* Caches aren't brain-dead on the Alpha. */ -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 -#define flush_dcache_page(page) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - /* Note that the following two definitions are _highly_ dependent on the contexts in which they are used in the kernel. I personally think it is criminal how loosely defined these macros are. */ @@ -47,7 +35,7 @@ extern void smp_imb(void); extern void __load_new_mm_context(struct mm_struct *); static inline void -flush_icache_user_range(struct vm_area_struct *vma, struct page *page, +flush_icache_user_page(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len) { if (vma->vm_flags & VM_EXEC) { @@ -58,20 +46,24 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page, mm->context[smp_processor_id()] = 0; } } -#else -extern void flush_icache_user_range(struct vm_area_struct *vma, +#define flush_icache_user_page flush_icache_user_page +#else /* CONFIG_SMP */ +extern void flush_icache_user_page(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len); -#endif +#define flush_icache_user_page flush_icache_user_page +#endif /* CONFIG_SMP */ -/* This is used only in __do_fault and do_swap_page. */ -#define flush_icache_page(vma, page) \ - flush_icache_user_range((vma), (page), 0, 0) +/* + * Both implementations of flush_icache_user_page flush the entire + * address space, so one call, no matter how many pages. + */ +static inline void flush_icache_pages(struct vm_area_struct *vma, + struct page *page, unsigned int nr) +{ + flush_icache_user_page(vma, page, 0, 0); +} +#define flush_icache_pages flush_icache_pages -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { memcpy(dst, src, len); \ - flush_icache_user_range(vma, page, vaddr, len); \ -} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include <asm-generic/cacheflush.h> #endif /* _ALPHA_CACHEFLUSH_H */ diff --git a/arch/alpha/include/asm/checksum.h b/arch/alpha/include/asm/checksum.h index d3854bbf0a9e..99d631e146b2 100644 --- a/arch/alpha/include/asm/checksum.h +++ b/arch/alpha/include/asm/checksum.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_CHECKSUM_H #define _ALPHA_CHECKSUM_H @@ -13,14 +14,11 @@ extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl); * computes the checksum of the TCP/UDP pseudo-header * returns a 16-bit checksum, already complemented */ -extern __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum); +__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, + __u32 len, __u8 proto, __wsum sum); __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, unsigned short proto, - __wsum sum); + __u32 len, __u8 proto, __wsum sum); /* * computes the checksum of a memory block at buff, length len, @@ -43,9 +41,11 @@ extern __wsum csum_partial(const void *buff, int len, __wsum sum); * here even more important to align src and dst on a 32-bit (or even * better 64-bit) boundary */ -__wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *errp); +#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER +#define _HAVE_ARCH_CSUM_AND_COPY +__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len); -__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum); +__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len); /* @@ -70,6 +70,5 @@ static inline __sum16 csum_fold(__wsum csum) #define _HAVE_ARCH_IPV6_CSUM extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr, - __u32 len, unsigned short proto, - __wsum sum); + __u32 len, __u8 proto, __wsum sum); #endif diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h index 429e8cd0d78e..ae1b96479d0c 100644 --- a/arch/alpha/include/asm/cmpxchg.h +++ b/arch/alpha/include/asm/cmpxchg.h @@ -1,71 +1,283 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_CMPXCHG_H #define _ALPHA_CMPXCHG_H /* - * Atomic exchange routines. + * Atomic exchange. + * Since it can be used to implement critical sections + * it must clobber "memory" (also for interrupts in UP). */ -#define __ASM__MB -#define ____xchg(type, args...) __xchg ## type ## _local(args) -#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args) -#include <asm/xchg.h> +static inline unsigned long +____xchg_u8(volatile char *m, unsigned long val) +{ + unsigned long ret, tmp, addr64; + + __asm__ __volatile__( + " andnot %4,7,%3\n" + " insbl %1,%4,%1\n" + "1: ldq_l %2,0(%3)\n" + " extbl %2,%4,%0\n" + " mskbl %2,%4,%2\n" + " or %1,%2,%2\n" + " stq_c %2,0(%3)\n" + " beq %2,2f\n" + ".subsection 2\n" + "2: br 1b\n" + ".previous" + : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64) + : "r" ((long)m), "1" (val) : "memory"); + + return ret; +} + +static inline unsigned long +____xchg_u16(volatile short *m, unsigned long val) +{ + unsigned long ret, tmp, addr64; + + __asm__ __volatile__( + " andnot %4,7,%3\n" + " inswl %1,%4,%1\n" + "1: ldq_l %2,0(%3)\n" + " extwl %2,%4,%0\n" + " mskwl %2,%4,%2\n" + " or %1,%2,%2\n" + " stq_c %2,0(%3)\n" + " beq %2,2f\n" + ".subsection 2\n" + "2: br 1b\n" + ".previous" + : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64) + : "r" ((long)m), "1" (val) : "memory"); + + return ret; +} + +static inline unsigned long +____xchg_u32(volatile int *m, unsigned long val) +{ + unsigned long dummy; + + __asm__ __volatile__( + "1: ldl_l %0,%4\n" + " bis $31,%3,%1\n" + " stl_c %1,%2\n" + " beq %1,2f\n" + ".subsection 2\n" + "2: br 1b\n" + ".previous" + : "=&r" (val), "=&r" (dummy), "=m" (*m) + : "rI" (val), "m" (*m) : "memory"); + + return val; +} + +static inline unsigned long +____xchg_u64(volatile long *m, unsigned long val) +{ + unsigned long dummy; + + __asm__ __volatile__( + "1: ldq_l %0,%4\n" + " bis $31,%3,%1\n" + " stq_c %1,%2\n" + " beq %1,2f\n" + ".subsection 2\n" + "2: br 1b\n" + ".previous" + : "=&r" (val), "=&r" (dummy), "=m" (*m) + : "rI" (val), "m" (*m) : "memory"); + + return val; +} + +/* This function doesn't exist, so you'll get a linker error + if something tries to do an invalid xchg(). */ +extern void __xchg_called_with_bad_pointer(void); + +static __always_inline unsigned long +____xchg(volatile void *ptr, unsigned long x, int size) +{ + return + size == 1 ? ____xchg_u8(ptr, x) : + size == 2 ? ____xchg_u16(ptr, x) : + size == 4 ? ____xchg_u32(ptr, x) : + size == 8 ? ____xchg_u64(ptr, x) : + (__xchg_called_with_bad_pointer(), x); +} + +/* + * Atomic compare and exchange. Compare OLD with MEM, if identical, + * store NEW in MEM. Return the initial value in MEM. Success is + * indicated by comparing RETURN with OLD. + */ + +static inline unsigned long +____cmpxchg_u8(volatile char *m, unsigned char old, unsigned char new) +{ + unsigned long prev, tmp, cmp, addr64; + + __asm__ __volatile__( + " andnot %5,7,%4\n" + " insbl %1,%5,%1\n" + "1: ldq_l %2,0(%4)\n" + " extbl %2,%5,%0\n" + " cmpeq %0,%6,%3\n" + " beq %3,2f\n" + " mskbl %2,%5,%2\n" + " or %1,%2,%2\n" + " stq_c %2,0(%4)\n" + " beq %2,3f\n" + "2:\n" + ".subsection 2\n" + "3: br 1b\n" + ".previous" + : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64) + : "r" ((long)m), "Ir" (old), "1" (new) : "memory"); + + return prev; +} + +static inline unsigned long +____cmpxchg_u16(volatile short *m, unsigned short old, unsigned short new) +{ + unsigned long prev, tmp, cmp, addr64; + + __asm__ __volatile__( + " andnot %5,7,%4\n" + " inswl %1,%5,%1\n" + "1: ldq_l %2,0(%4)\n" + " extwl %2,%5,%0\n" + " cmpeq %0,%6,%3\n" + " beq %3,2f\n" + " mskwl %2,%5,%2\n" + " or %1,%2,%2\n" + " stq_c %2,0(%4)\n" + " beq %2,3f\n" + "2:\n" + ".subsection 2\n" + "3: br 1b\n" + ".previous" + : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64) + : "r" ((long)m), "Ir" (old), "1" (new) : "memory"); + + return prev; +} + +static inline unsigned long +____cmpxchg_u32(volatile int *m, int old, int new) +{ + unsigned long prev, cmp; + + __asm__ __volatile__( + "1: ldl_l %0,%5\n" + " cmpeq %0,%3,%1\n" + " beq %1,2f\n" + " mov %4,%1\n" + " stl_c %1,%2\n" + " beq %1,3f\n" + "2:\n" + ".subsection 2\n" + "3: br 1b\n" + ".previous" + : "=&r"(prev), "=&r"(cmp), "=m"(*m) + : "r"((long) old), "r"(new), "m"(*m) : "memory"); + + return prev; +} + +static inline unsigned long +____cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new) +{ + unsigned long prev, cmp; + + __asm__ __volatile__( + "1: ldq_l %0,%5\n" + " cmpeq %0,%3,%1\n" + " beq %1,2f\n" + " mov %4,%1\n" + " stq_c %1,%2\n" + " beq %1,3f\n" + "2:\n" + ".subsection 2\n" + "3: br 1b\n" + ".previous" + : "=&r"(prev), "=&r"(cmp), "=m"(*m) + : "r"((long) old), "r"(new), "m"(*m) : "memory"); + + return prev; +} + +/* This function doesn't exist, so you'll get a linker error + if something tries to do an invalid cmpxchg(). */ +extern void __cmpxchg_called_with_bad_pointer(void); + +static __always_inline unsigned long +____cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, + int size) +{ + return + size == 1 ? ____cmpxchg_u8(ptr, old, new) : + size == 2 ? ____cmpxchg_u16(ptr, old, new) : + size == 4 ? ____cmpxchg_u32(ptr, old, new) : + size == 8 ? ____cmpxchg_u64(ptr, old, new) : + (__cmpxchg_called_with_bad_pointer(), old); +} #define xchg_local(ptr, x) \ ({ \ __typeof__(*(ptr)) _x_ = (x); \ - (__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \ - sizeof(*(ptr))); \ + (__typeof__(*(ptr))) ____xchg((ptr), (unsigned long)_x_, \ + sizeof(*(ptr))); \ }) -#define cmpxchg_local(ptr, o, n) \ +#define arch_cmpxchg_local(ptr, o, n) \ ({ \ __typeof__(*(ptr)) _o_ = (o); \ __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \ + (__typeof__(*(ptr))) ____cmpxchg((ptr), (unsigned long)_o_, \ (unsigned long)_n_, \ sizeof(*(ptr))); \ }) -#define cmpxchg64_local(ptr, o, n) \ +#define arch_cmpxchg64_local(ptr, o, n) \ ({ \ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ cmpxchg_local((ptr), (o), (n)); \ }) -#ifdef CONFIG_SMP -#undef __ASM__MB -#define __ASM__MB "\tmb\n" -#endif -#undef ____xchg -#undef ____cmpxchg -#define ____xchg(type, args...) __xchg ##type(args) -#define ____cmpxchg(type, args...) __cmpxchg ##type(args) -#include <asm/xchg.h> - -#define xchg(ptr, x) \ +/* + * The leading and the trailing memory barriers guarantee that these + * operations are fully ordered. + */ +#define arch_xchg(ptr, x) \ ({ \ + __typeof__(*(ptr)) __ret; \ __typeof__(*(ptr)) _x_ = (x); \ - (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ - sizeof(*(ptr))); \ + smp_mb(); \ + __ret = (__typeof__(*(ptr))) \ + ____xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \ + smp_mb(); \ + __ret; \ }) -#define cmpxchg(ptr, o, n) \ +#define arch_cmpxchg(ptr, o, n) \ ({ \ + __typeof__(*(ptr)) __ret; \ __typeof__(*(ptr)) _o_ = (o); \ __typeof__(*(ptr)) _n_ = (n); \ - (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ - (unsigned long)_n_, sizeof(*(ptr)));\ + smp_mb(); \ + __ret = (__typeof__(*(ptr))) ____cmpxchg((ptr), \ + (unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr)));\ + smp_mb(); \ + __ret; \ }) -#define cmpxchg64(ptr, o, n) \ +#define arch_cmpxchg64(ptr, o, n) \ ({ \ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ - cmpxchg((ptr), (o), (n)); \ + arch_cmpxchg((ptr), (o), (n)); \ }) -#undef __ASM__MB -#undef ____cmpxchg - -#define __HAVE_ARCH_CMPXCHG 1 - #endif /* _ALPHA_CMPXCHG_H */ diff --git a/arch/alpha/include/asm/compiler.h b/arch/alpha/include/asm/compiler.h index a7720b96bcc9..ae645959018a 100644 --- a/arch/alpha/include/asm/compiler.h +++ b/arch/alpha/include/asm/compiler.h @@ -1,17 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_COMPILER_H #define __ALPHA_COMPILER_H #include <uapi/asm/compiler.h> -/* Some idiots over in <linux/compiler.h> thought inline should imply - always_inline. This breaks stuff. We'll include this file whenever - we run into such problems. */ - -#include <linux/compiler.h> -#undef inline -#undef __inline__ -#undef __inline -#undef __always_inline -#define __always_inline inline __attribute__((always_inline)) - #endif /* __ALPHA_COMPILER_H */ diff --git a/arch/alpha/include/asm/console.h b/arch/alpha/include/asm/console.h index f2b584fe0994..088b7b9eb15a 100644 --- a/arch/alpha/include/asm/console.h +++ b/arch/alpha/include/asm/console.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __AXP_CONSOLE_H #define __AXP_CONSOLE_H diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h deleted file mode 100644 index 6785ff7e02bc..000000000000 --- a/arch/alpha/include/asm/core_apecs.h +++ /dev/null @@ -1,517 +0,0 @@ -#ifndef __ALPHA_APECS__H__ -#define __ALPHA_APECS__H__ - -#include <linux/types.h> -#include <asm/compiler.h> - -/* - * APECS is the internal name for the 2107x chipset which provides - * memory controller and PCI access for the 21064 chip based systems. - * - * This file is based on: - * - * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets - * Data Sheet - * - * EC-N0648-72 - * - * - * david.rusling@reo.mts.dec.com Initial Version. - * - */ - -/* - An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address - that get passed through the PCI<->ISA bridge chip. So we've gotta use - both windows to max out the physical memory we can DMA to. Sigh... - - If we try a window at 0 for 1GB as a work-around, we run into conflicts - with ISA/PCI bus memory which can't be relocated, like VGA aperture and - BIOS ROMs. So we must put the windows high enough to avoid these areas. - - We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1, - and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1. - Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually - be used for that range (via virt_to_bus()). - - Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb, - to keep virt_to_bus() from returning an address in the first window, for - a data area that goes beyond the 64Mb first DMA window. Sigh... - The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but - we can't just use that here, because of header file looping... :-( - - Window 1 will be used for all DMA from the ISA bus; yes, that does - limit what memory an ISA floppy or sound card or Ethernet can touch, but - it's also a known limitation on other platforms as well. We use the - same technique that is used on INTEL platforms with similar limitation: - set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init(). - We trust that any ISA bus device drivers will *always* ask for DMAable - memory explicitly via kmalloc()/get_free_pages() flags arguments. - - Note that most PCI bus devices' drivers do *not* explicitly ask for - DMAable memory; they count on being able to DMA to any memory they - get from kmalloc()/get_free_pages(). They will also use window 1 for - any physical memory accesses below 64Mb; the rest will be handled by - window 2, maxing out at 1Gb of memory. I trust this is enough... :-) - - We hope that the area before the first window is large enough so that - there will be no overlap at the top end (64Mb). We *must* locate the - PCI cards' memory just below window 1, so that there's still the - possibility of being able to access it via SPARSE space. This is - important for cards such as the Matrox Millennium, whose Xserver - wants to access memory-mapped registers in byte and short lengths. - - Note that the XL is treated differently from the AVANTI, even though - for most other things they are identical. It didn't seem reasonable to - make the AVANTI support pay for the limitations of the XL. It is true, - however, that an XL kernel will run on an AVANTI without problems. - - %%% All of this should be obviated by the ability to route - everything through the iommu. -*/ - -/* - * 21071-DA Control and Status registers. - * These are used for PCI memory access. - */ -#define APECS_IOC_DCSR (IDENT_ADDR + 0x1A0000000UL) -#define APECS_IOC_PEAR (IDENT_ADDR + 0x1A0000020UL) -#define APECS_IOC_SEAR (IDENT_ADDR + 0x1A0000040UL) -#define APECS_IOC_DR1 (IDENT_ADDR + 0x1A0000060UL) -#define APECS_IOC_DR2 (IDENT_ADDR + 0x1A0000080UL) -#define APECS_IOC_DR3 (IDENT_ADDR + 0x1A00000A0UL) - -#define APECS_IOC_TB1R (IDENT_ADDR + 0x1A00000C0UL) -#define APECS_IOC_TB2R (IDENT_ADDR + 0x1A00000E0UL) - -#define APECS_IOC_PB1R (IDENT_ADDR + 0x1A0000100UL) -#define APECS_IOC_PB2R (IDENT_ADDR + 0x1A0000120UL) - -#define APECS_IOC_PM1R (IDENT_ADDR + 0x1A0000140UL) -#define APECS_IOC_PM2R (IDENT_ADDR + 0x1A0000160UL) - -#define APECS_IOC_HAXR0 (IDENT_ADDR + 0x1A0000180UL) -#define APECS_IOC_HAXR1 (IDENT_ADDR + 0x1A00001A0UL) -#define APECS_IOC_HAXR2 (IDENT_ADDR + 0x1A00001C0UL) - -#define APECS_IOC_PMLT (IDENT_ADDR + 0x1A00001E0UL) - -#define APECS_IOC_TLBTAG0 (IDENT_ADDR + 0x1A0000200UL) -#define APECS_IOC_TLBTAG1 (IDENT_ADDR + 0x1A0000220UL) -#define APECS_IOC_TLBTAG2 (IDENT_ADDR + 0x1A0000240UL) -#define APECS_IOC_TLBTAG3 (IDENT_ADDR + 0x1A0000260UL) -#define APECS_IOC_TLBTAG4 (IDENT_ADDR + 0x1A0000280UL) -#define APECS_IOC_TLBTAG5 (IDENT_ADDR + 0x1A00002A0UL) -#define APECS_IOC_TLBTAG6 (IDENT_ADDR + 0x1A00002C0UL) -#define APECS_IOC_TLBTAG7 (IDENT_ADDR + 0x1A00002E0UL) - -#define APECS_IOC_TLBDATA0 (IDENT_ADDR + 0x1A0000300UL) -#define APECS_IOC_TLBDATA1 (IDENT_ADDR + 0x1A0000320UL) -#define APECS_IOC_TLBDATA2 (IDENT_ADDR + 0x1A0000340UL) -#define APECS_IOC_TLBDATA3 (IDENT_ADDR + 0x1A0000360UL) -#define APECS_IOC_TLBDATA4 (IDENT_ADDR + 0x1A0000380UL) -#define APECS_IOC_TLBDATA5 (IDENT_ADDR + 0x1A00003A0UL) -#define APECS_IOC_TLBDATA6 (IDENT_ADDR + 0x1A00003C0UL) -#define APECS_IOC_TLBDATA7 (IDENT_ADDR + 0x1A00003E0UL) - -#define APECS_IOC_TBIA (IDENT_ADDR + 0x1A0000400UL) - - -/* - * 21071-CA Control and Status registers. - * These are used to program memory timing, - * configure memory and initialise the B-Cache. - */ -#define APECS_MEM_GCR (IDENT_ADDR + 0x180000000UL) -#define APECS_MEM_EDSR (IDENT_ADDR + 0x180000040UL) -#define APECS_MEM_TAR (IDENT_ADDR + 0x180000060UL) -#define APECS_MEM_ELAR (IDENT_ADDR + 0x180000080UL) -#define APECS_MEM_EHAR (IDENT_ADDR + 0x1800000a0UL) -#define APECS_MEM_SFT_RST (IDENT_ADDR + 0x1800000c0UL) -#define APECS_MEM_LDxLAR (IDENT_ADDR + 0x1800000e0UL) -#define APECS_MEM_LDxHAR (IDENT_ADDR + 0x180000100UL) -#define APECS_MEM_GTR (IDENT_ADDR + 0x180000200UL) -#define APECS_MEM_RTR (IDENT_ADDR + 0x180000220UL) -#define APECS_MEM_VFPR (IDENT_ADDR + 0x180000240UL) -#define APECS_MEM_PDLDR (IDENT_ADDR + 0x180000260UL) -#define APECS_MEM_PDhDR (IDENT_ADDR + 0x180000280UL) - -/* Bank x Base Address Register */ -#define APECS_MEM_B0BAR (IDENT_ADDR + 0x180000800UL) -#define APECS_MEM_B1BAR (IDENT_ADDR + 0x180000820UL) -#define APECS_MEM_B2BAR (IDENT_ADDR + 0x180000840UL) -#define APECS_MEM_B3BAR (IDENT_ADDR + 0x180000860UL) -#define APECS_MEM_B4BAR (IDENT_ADDR + 0x180000880UL) -#define APECS_MEM_B5BAR (IDENT_ADDR + 0x1800008A0UL) -#define APECS_MEM_B6BAR (IDENT_ADDR + 0x1800008C0UL) -#define APECS_MEM_B7BAR (IDENT_ADDR + 0x1800008E0UL) -#define APECS_MEM_B8BAR (IDENT_ADDR + 0x180000900UL) - -/* Bank x Configuration Register */ -#define APECS_MEM_B0BCR (IDENT_ADDR + 0x180000A00UL) -#define APECS_MEM_B1BCR (IDENT_ADDR + 0x180000A20UL) -#define APECS_MEM_B2BCR (IDENT_ADDR + 0x180000A40UL) -#define APECS_MEM_B3BCR (IDENT_ADDR + 0x180000A60UL) -#define APECS_MEM_B4BCR (IDENT_ADDR + 0x180000A80UL) -#define APECS_MEM_B5BCR (IDENT_ADDR + 0x180000AA0UL) -#define APECS_MEM_B6BCR (IDENT_ADDR + 0x180000AC0UL) -#define APECS_MEM_B7BCR (IDENT_ADDR + 0x180000AE0UL) -#define APECS_MEM_B8BCR (IDENT_ADDR + 0x180000B00UL) - -/* Bank x Timing Register A */ -#define APECS_MEM_B0TRA (IDENT_ADDR + 0x180000C00UL) -#define APECS_MEM_B1TRA (IDENT_ADDR + 0x180000C20UL) -#define APECS_MEM_B2TRA (IDENT_ADDR + 0x180000C40UL) -#define APECS_MEM_B3TRA (IDENT_ADDR + 0x180000C60UL) -#define APECS_MEM_B4TRA (IDENT_ADDR + 0x180000C80UL) -#define APECS_MEM_B5TRA (IDENT_ADDR + 0x180000CA0UL) -#define APECS_MEM_B6TRA (IDENT_ADDR + 0x180000CC0UL) -#define APECS_MEM_B7TRA (IDENT_ADDR + 0x180000CE0UL) -#define APECS_MEM_B8TRA (IDENT_ADDR + 0x180000D00UL) - -/* Bank x Timing Register B */ -#define APECS_MEM_B0TRB (IDENT_ADDR + 0x180000E00UL) -#define APECS_MEM_B1TRB (IDENT_ADDR + 0x180000E20UL) -#define APECS_MEM_B2TRB (IDENT_ADDR + 0x180000E40UL) -#define APECS_MEM_B3TRB (IDENT_ADDR + 0x180000E60UL) -#define APECS_MEM_B4TRB (IDENT_ADDR + 0x180000E80UL) -#define APECS_MEM_B5TRB (IDENT_ADDR + 0x180000EA0UL) -#define APECS_MEM_B6TRB (IDENT_ADDR + 0x180000EC0UL) -#define APECS_MEM_B7TRB (IDENT_ADDR + 0x180000EE0UL) -#define APECS_MEM_B8TRB (IDENT_ADDR + 0x180000F00UL) - - -/* - * Memory spaces: - */ -#define APECS_IACK_SC (IDENT_ADDR + 0x1b0000000UL) -#define APECS_CONF (IDENT_ADDR + 0x1e0000000UL) -#define APECS_IO (IDENT_ADDR + 0x1c0000000UL) -#define APECS_SPARSE_MEM (IDENT_ADDR + 0x200000000UL) -#define APECS_DENSE_MEM (IDENT_ADDR + 0x300000000UL) - - -/* - * Bit definitions for I/O Controller status register 0: - */ -#define APECS_IOC_STAT0_CMD 0xf -#define APECS_IOC_STAT0_ERR (1<<4) -#define APECS_IOC_STAT0_LOST (1<<5) -#define APECS_IOC_STAT0_THIT (1<<6) -#define APECS_IOC_STAT0_TREF (1<<7) -#define APECS_IOC_STAT0_CODE_SHIFT 8 -#define APECS_IOC_STAT0_CODE_MASK 0x7 -#define APECS_IOC_STAT0_P_NBR_SHIFT 13 -#define APECS_IOC_STAT0_P_NBR_MASK 0x7ffff - -#define APECS_HAE_ADDRESS APECS_IOC_HAXR1 - - -/* - * Data structure for handling APECS machine checks: - */ - -struct el_apecs_mikasa_sysdata_mcheck -{ - unsigned long coma_gcr; - unsigned long coma_edsr; - unsigned long coma_ter; - unsigned long coma_elar; - unsigned long coma_ehar; - unsigned long coma_ldlr; - unsigned long coma_ldhr; - unsigned long coma_base0; - unsigned long coma_base1; - unsigned long coma_base2; - unsigned long coma_base3; - unsigned long coma_cnfg0; - unsigned long coma_cnfg1; - unsigned long coma_cnfg2; - unsigned long coma_cnfg3; - unsigned long epic_dcsr; - unsigned long epic_pear; - unsigned long epic_sear; - unsigned long epic_tbr1; - unsigned long epic_tbr2; - unsigned long epic_pbr1; - unsigned long epic_pbr2; - unsigned long epic_pmr1; - unsigned long epic_pmr2; - unsigned long epic_harx1; - unsigned long epic_harx2; - unsigned long epic_pmlt; - unsigned long epic_tag0; - unsigned long epic_tag1; - unsigned long epic_tag2; - unsigned long epic_tag3; - unsigned long epic_tag4; - unsigned long epic_tag5; - unsigned long epic_tag6; - unsigned long epic_tag7; - unsigned long epic_data0; - unsigned long epic_data1; - unsigned long epic_data2; - unsigned long epic_data3; - unsigned long epic_data4; - unsigned long epic_data5; - unsigned long epic_data6; - unsigned long epic_data7; - - unsigned long pceb_vid; - unsigned long pceb_did; - unsigned long pceb_revision; - unsigned long pceb_command; - unsigned long pceb_status; - unsigned long pceb_latency; - unsigned long pceb_control; - unsigned long pceb_arbcon; - unsigned long pceb_arbpri; - - unsigned long esc_id; - unsigned long esc_revision; - unsigned long esc_int0; - unsigned long esc_int1; - unsigned long esc_elcr0; - unsigned long esc_elcr1; - unsigned long esc_last_eisa; - unsigned long esc_nmi_stat; - - unsigned long pci_ir; - unsigned long pci_imr; - unsigned long svr_mgr; -}; - -/* This for the normal APECS machines. */ -struct el_apecs_sysdata_mcheck -{ - unsigned long coma_gcr; - unsigned long coma_edsr; - unsigned long coma_ter; - unsigned long coma_elar; - unsigned long coma_ehar; - unsigned long coma_ldlr; - unsigned long coma_ldhr; - unsigned long coma_base0; - unsigned long coma_base1; - unsigned long coma_base2; - unsigned long coma_cnfg0; - unsigned long coma_cnfg1; - unsigned long coma_cnfg2; - unsigned long epic_dcsr; - unsigned long epic_pear; - unsigned long epic_sear; - unsigned long epic_tbr1; - unsigned long epic_tbr2; - unsigned long epic_pbr1; - unsigned long epic_pbr2; - unsigned long epic_pmr1; - unsigned long epic_pmr2; - unsigned long epic_harx1; - unsigned long epic_harx2; - unsigned long epic_pmlt; - unsigned long epic_tag0; - unsigned long epic_tag1; - unsigned long epic_tag2; - unsigned long epic_tag3; - unsigned long epic_tag4; - unsigned long epic_tag5; - unsigned long epic_tag6; - unsigned long epic_tag7; - unsigned long epic_data0; - unsigned long epic_data1; - unsigned long epic_data2; - unsigned long epic_data3; - unsigned long epic_data4; - unsigned long epic_data5; - unsigned long epic_data6; - unsigned long epic_data7; -}; - -struct el_apecs_procdata -{ - unsigned long paltemp[32]; /* PAL TEMP REGS. */ - /* EV4-specific fields */ - unsigned long exc_addr; /* Address of excepting instruction. */ - unsigned long exc_sum; /* Summary of arithmetic traps. */ - unsigned long exc_mask; /* Exception mask (from exc_sum). */ - unsigned long iccsr; /* IBox hardware enables. */ - unsigned long pal_base; /* Base address for PALcode. */ - unsigned long hier; /* Hardware Interrupt Enable. */ - unsigned long hirr; /* Hardware Interrupt Request. */ - unsigned long csr; /* D-stream fault info. */ - unsigned long dc_stat; /* D-cache status (ECC/Parity Err). */ - unsigned long dc_addr; /* EV3 Phys Addr for ECC/DPERR. */ - unsigned long abox_ctl; /* ABox Control Register. */ - unsigned long biu_stat; /* BIU Status. */ - unsigned long biu_addr; /* BUI Address. */ - unsigned long biu_ctl; /* BIU Control. */ - unsigned long fill_syndrome;/* For correcting ECC errors. */ - unsigned long fill_addr; /* Cache block which was being read */ - unsigned long va; /* Effective VA of fault or miss. */ - unsigned long bc_tag; /* Backup Cache Tag Probe Results.*/ -}; - - -#ifdef __KERNEL__ - -#ifndef __EXTERN_INLINE -#define __EXTERN_INLINE extern inline -#define __IO_EXTERN_INLINE -#endif - -/* - * I/O functions: - * - * Unlike Jensen, the APECS machines have no concept of local - * I/O---everything goes over the PCI bus. - * - * There is plenty room for optimization here. In particular, - * the Alpha's insb/insw/extb/extw should be useful in moving - * data to/from the right byte-lanes. - */ - -#define vip volatile int __force * -#define vuip volatile unsigned int __force * -#define vulp volatile unsigned long __force * - -#define APECS_SET_HAE \ - do { \ - if (addr >= (1UL << 24)) { \ - unsigned long msb = addr & 0xf8000000; \ - addr -= msb; \ - set_hae(msb); \ - } \ - } while (0) - -__EXTERN_INLINE unsigned int apecs_ioread8(void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long result, base_and_type; - - if (addr >= APECS_DENSE_MEM) { - addr -= APECS_DENSE_MEM; - APECS_SET_HAE; - base_and_type = APECS_SPARSE_MEM + 0x00; - } else { - addr -= APECS_IO; - base_and_type = APECS_IO + 0x00; - } - - result = *(vip) ((addr << 5) + base_and_type); - return __kernel_extbl(result, addr & 3); -} - -__EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long w, base_and_type; - - if (addr >= APECS_DENSE_MEM) { - addr -= APECS_DENSE_MEM; - APECS_SET_HAE; - base_and_type = APECS_SPARSE_MEM + 0x00; - } else { - addr -= APECS_IO; - base_and_type = APECS_IO + 0x00; - } - - w = __kernel_insbl(b, addr & 3); - *(vuip) ((addr << 5) + base_and_type) = w; -} - -__EXTERN_INLINE unsigned int apecs_ioread16(void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long result, base_and_type; - - if (addr >= APECS_DENSE_MEM) { - addr -= APECS_DENSE_MEM; - APECS_SET_HAE; - base_and_type = APECS_SPARSE_MEM + 0x08; - } else { - addr -= APECS_IO; - base_and_type = APECS_IO + 0x08; - } - - result = *(vip) ((addr << 5) + base_and_type); - return __kernel_extwl(result, addr & 3); -} - -__EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long w, base_and_type; - - if (addr >= APECS_DENSE_MEM) { - addr -= APECS_DENSE_MEM; - APECS_SET_HAE; - base_and_type = APECS_SPARSE_MEM + 0x08; - } else { - addr -= APECS_IO; - base_and_type = APECS_IO + 0x08; - } - - w = __kernel_inswl(b, addr & 3); - *(vuip) ((addr << 5) + base_and_type) = w; -} - -__EXTERN_INLINE unsigned int apecs_ioread32(void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - if (addr < APECS_DENSE_MEM) - addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18; - return *(vuip)addr; -} - -__EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - if (addr < APECS_DENSE_MEM) - addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18; - *(vuip)addr = b; -} - -__EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr) -{ - return (void __iomem *)(addr + APECS_IO); -} - -__EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr, - unsigned long size) -{ - return (void __iomem *)(addr + APECS_DENSE_MEM); -} - -__EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr) -{ - return addr >= IDENT_ADDR + 0x180000000UL; -} - -__EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr) -{ - return (unsigned long)addr >= APECS_DENSE_MEM; -} - -#undef APECS_SET_HAE - -#undef vip -#undef vuip -#undef vulp - -#undef __IO_PREFIX -#define __IO_PREFIX apecs -#define apecs_trivial_io_bw 0 -#define apecs_trivial_io_lq 0 -#define apecs_trivial_rw_bw 2 -#define apecs_trivial_rw_lq 1 -#define apecs_trivial_iounmap 1 -#include <asm/io_trivial.h> - -#ifdef __IO_EXTERN_INLINE -#undef __EXTERN_INLINE -#undef __IO_EXTERN_INLINE -#endif - -#endif /* __KERNEL__ */ - -#endif /* __ALPHA_APECS__H__ */ diff --git a/arch/alpha/include/asm/core_cia.h b/arch/alpha/include/asm/core_cia.h index 9e0516c0ca27..d26bdfb7ca3b 100644 --- a/arch/alpha/include/asm/core_cia.h +++ b/arch/alpha/include/asm/core_cia.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_CIA__H__ #define __ALPHA_CIA__H__ @@ -341,7 +342,7 @@ struct el_CIA_sysdata_mcheck { #define vuip volatile unsigned int __force * #define vulp volatile unsigned long __force * -__EXTERN_INLINE unsigned int cia_ioread8(void __iomem *xaddr) +__EXTERN_INLINE u8 cia_ioread8(const void __iomem *xaddr) { unsigned long addr = (unsigned long) xaddr; unsigned long result, base_and_type; @@ -373,7 +374,7 @@ __EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr) *(vuip) ((addr << 5) + base_and_type) = w; } -__EXTERN_INLINE unsigned int cia_ioread16(void __iomem *xaddr) +__EXTERN_INLINE u16 cia_ioread16(const void __iomem *xaddr) { unsigned long addr = (unsigned long) xaddr; unsigned long result, base_and_type; @@ -403,7 +404,7 @@ __EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr) *(vuip) ((addr << 5) + base_and_type) = w; } -__EXTERN_INLINE unsigned int cia_ioread32(void __iomem *xaddr) +__EXTERN_INLINE u32 cia_ioread32(const void __iomem *xaddr) { unsigned long addr = (unsigned long) xaddr; if (addr < CIA_DENSE_MEM) @@ -419,6 +420,22 @@ __EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr) *(vuip)addr = b; } +__EXTERN_INLINE u64 cia_ioread64(const void __iomem *xaddr) +{ + unsigned long addr = (unsigned long) xaddr; + if (addr < CIA_DENSE_MEM) + addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18; + return *(vulp)addr; +} + +__EXTERN_INLINE void cia_iowrite64(u64 b, void __iomem *xaddr) +{ + unsigned long addr = (unsigned long) xaddr; + if (addr < CIA_DENSE_MEM) + addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18; + *(vulp)addr = b; +} + __EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr) { return (void __iomem *)(addr + CIA_IO); diff --git a/arch/alpha/include/asm/core_irongate.h b/arch/alpha/include/asm/core_irongate.h index 24b2db541501..1c8906bf76c6 100644 --- a/arch/alpha/include/asm/core_irongate.h +++ b/arch/alpha/include/asm/core_irongate.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_IRONGATE__H__ #define __ALPHA_IRONGATE__H__ diff --git a/arch/alpha/include/asm/core_lca.h b/arch/alpha/include/asm/core_lca.h deleted file mode 100644 index 8ee6c516279c..000000000000 --- a/arch/alpha/include/asm/core_lca.h +++ /dev/null @@ -1,361 +0,0 @@ -#ifndef __ALPHA_LCA__H__ -#define __ALPHA_LCA__H__ - -#include <asm/compiler.h> -#include <asm/mce.h> - -/* - * Low Cost Alpha (LCA) definitions (these apply to 21066 and 21068, - * for example). - * - * This file is based on: - * - * DECchip 21066 and DECchip 21068 Alpha AXP Microprocessors - * Hardware Reference Manual; Digital Equipment Corp.; May 1994; - * Maynard, MA; Order Number: EC-N2681-71. - */ - -/* - * NOTE: The LCA uses a Host Address Extension (HAE) register to access - * PCI addresses that are beyond the first 27 bits of address - * space. Updating the HAE requires an external cycle (and - * a memory barrier), which tends to be slow. Instead of updating - * it on each sparse memory access, we keep the current HAE value - * cached in variable cache_hae. Only if the cached HAE differs - * from the desired HAE value do we actually updated HAE register. - * The HAE register is preserved by the interrupt handler entry/exit - * code, so this scheme works even in the presence of interrupts. - * - * Dense memory space doesn't require the HAE, but is restricted to - * aligned 32 and 64 bit accesses. Special Cycle and Interrupt - * Acknowledge cycles may also require the use of the HAE. The LCA - * limits I/O address space to the bottom 24 bits of address space, - * but this easily covers the 16 bit ISA I/O address space. - */ - -/* - * NOTE 2! The memory operations do not set any memory barriers, as - * it's not needed for cases like a frame buffer that is essentially - * memory-like. You need to do them by hand if the operations depend - * on ordering. - * - * Similarly, the port I/O operations do a "mb" only after a write - * operation: if an mb is needed before (as in the case of doing - * memory mapped I/O first, and then a port I/O operation to the same - * device), it needs to be done by hand. - * - * After the above has bitten me 100 times, I'll give up and just do - * the mb all the time, but right now I'm hoping this will work out. - * Avoiding mb's may potentially be a noticeable speed improvement, - * but I can't honestly say I've tested it. - * - * Handling interrupts that need to do mb's to synchronize to - * non-interrupts is another fun race area. Don't do it (because if - * you do, I'll have to do *everything* with interrupts disabled, - * ugh). - */ - -/* - * Memory Controller registers: - */ -#define LCA_MEM_BCR0 (IDENT_ADDR + 0x120000000UL) -#define LCA_MEM_BCR1 (IDENT_ADDR + 0x120000008UL) -#define LCA_MEM_BCR2 (IDENT_ADDR + 0x120000010UL) -#define LCA_MEM_BCR3 (IDENT_ADDR + 0x120000018UL) -#define LCA_MEM_BMR0 (IDENT_ADDR + 0x120000020UL) -#define LCA_MEM_BMR1 (IDENT_ADDR + 0x120000028UL) -#define LCA_MEM_BMR2 (IDENT_ADDR + 0x120000030UL) -#define LCA_MEM_BMR3 (IDENT_ADDR + 0x120000038UL) -#define LCA_MEM_BTR0 (IDENT_ADDR + 0x120000040UL) -#define LCA_MEM_BTR1 (IDENT_ADDR + 0x120000048UL) -#define LCA_MEM_BTR2 (IDENT_ADDR + 0x120000050UL) -#define LCA_MEM_BTR3 (IDENT_ADDR + 0x120000058UL) -#define LCA_MEM_GTR (IDENT_ADDR + 0x120000060UL) -#define LCA_MEM_ESR (IDENT_ADDR + 0x120000068UL) -#define LCA_MEM_EAR (IDENT_ADDR + 0x120000070UL) -#define LCA_MEM_CAR (IDENT_ADDR + 0x120000078UL) -#define LCA_MEM_VGR (IDENT_ADDR + 0x120000080UL) -#define LCA_MEM_PLM (IDENT_ADDR + 0x120000088UL) -#define LCA_MEM_FOR (IDENT_ADDR + 0x120000090UL) - -/* - * I/O Controller registers: - */ -#define LCA_IOC_HAE (IDENT_ADDR + 0x180000000UL) -#define LCA_IOC_CONF (IDENT_ADDR + 0x180000020UL) -#define LCA_IOC_STAT0 (IDENT_ADDR + 0x180000040UL) -#define LCA_IOC_STAT1 (IDENT_ADDR + 0x180000060UL) -#define LCA_IOC_TBIA (IDENT_ADDR + 0x180000080UL) -#define LCA_IOC_TB_ENA (IDENT_ADDR + 0x1800000a0UL) -#define LCA_IOC_SFT_RST (IDENT_ADDR + 0x1800000c0UL) -#define LCA_IOC_PAR_DIS (IDENT_ADDR + 0x1800000e0UL) -#define LCA_IOC_W_BASE0 (IDENT_ADDR + 0x180000100UL) -#define LCA_IOC_W_BASE1 (IDENT_ADDR + 0x180000120UL) -#define LCA_IOC_W_MASK0 (IDENT_ADDR + 0x180000140UL) -#define LCA_IOC_W_MASK1 (IDENT_ADDR + 0x180000160UL) -#define LCA_IOC_T_BASE0 (IDENT_ADDR + 0x180000180UL) -#define LCA_IOC_T_BASE1 (IDENT_ADDR + 0x1800001a0UL) -#define LCA_IOC_TB_TAG0 (IDENT_ADDR + 0x188000000UL) -#define LCA_IOC_TB_TAG1 (IDENT_ADDR + 0x188000020UL) -#define LCA_IOC_TB_TAG2 (IDENT_ADDR + 0x188000040UL) -#define LCA_IOC_TB_TAG3 (IDENT_ADDR + 0x188000060UL) -#define LCA_IOC_TB_TAG4 (IDENT_ADDR + 0x188000070UL) -#define LCA_IOC_TB_TAG5 (IDENT_ADDR + 0x1880000a0UL) -#define LCA_IOC_TB_TAG6 (IDENT_ADDR + 0x1880000c0UL) -#define LCA_IOC_TB_TAG7 (IDENT_ADDR + 0x1880000e0UL) - -/* - * Memory spaces: - */ -#define LCA_IACK_SC (IDENT_ADDR + 0x1a0000000UL) -#define LCA_CONF (IDENT_ADDR + 0x1e0000000UL) -#define LCA_IO (IDENT_ADDR + 0x1c0000000UL) -#define LCA_SPARSE_MEM (IDENT_ADDR + 0x200000000UL) -#define LCA_DENSE_MEM (IDENT_ADDR + 0x300000000UL) - -/* - * Bit definitions for I/O Controller status register 0: - */ -#define LCA_IOC_STAT0_CMD 0xf -#define LCA_IOC_STAT0_ERR (1<<4) -#define LCA_IOC_STAT0_LOST (1<<5) -#define LCA_IOC_STAT0_THIT (1<<6) -#define LCA_IOC_STAT0_TREF (1<<7) -#define LCA_IOC_STAT0_CODE_SHIFT 8 -#define LCA_IOC_STAT0_CODE_MASK 0x7 -#define LCA_IOC_STAT0_P_NBR_SHIFT 13 -#define LCA_IOC_STAT0_P_NBR_MASK 0x7ffff - -#define LCA_HAE_ADDRESS LCA_IOC_HAE - -/* LCA PMR Power Management register defines */ -#define LCA_PMR_ADDR (IDENT_ADDR + 0x120000098UL) -#define LCA_PMR_PDIV 0x7 /* Primary clock divisor */ -#define LCA_PMR_ODIV 0x38 /* Override clock divisor */ -#define LCA_PMR_INTO 0x40 /* Interrupt override */ -#define LCA_PMR_DMAO 0x80 /* DMA override */ -#define LCA_PMR_OCCEB 0xffff0000L /* Override cycle counter - even bits */ -#define LCA_PMR_OCCOB 0xffff000000000000L /* Override cycle counter - even bits */ -#define LCA_PMR_PRIMARY_MASK 0xfffffffffffffff8L - -/* LCA PMR Macros */ - -#define LCA_READ_PMR (*(volatile unsigned long *)LCA_PMR_ADDR) -#define LCA_WRITE_PMR(d) (*((volatile unsigned long *)LCA_PMR_ADDR) = (d)) - -#define LCA_GET_PRIMARY(r) ((r) & LCA_PMR_PDIV) -#define LCA_GET_OVERRIDE(r) (((r) >> 3) & LCA_PMR_PDIV) -#define LCA_SET_PRIMARY_CLOCK(r, c) ((r) = (((r) & LCA_PMR_PRIMARY_MASK)|(c))) - -/* LCA PMR Divisor values */ -#define LCA_PMR_DIV_1 0x0 -#define LCA_PMR_DIV_1_5 0x1 -#define LCA_PMR_DIV_2 0x2 -#define LCA_PMR_DIV_4 0x3 -#define LCA_PMR_DIV_8 0x4 -#define LCA_PMR_DIV_16 0x5 -#define LCA_PMR_DIV_MIN DIV_1 -#define LCA_PMR_DIV_MAX DIV_16 - - -/* - * Data structure for handling LCA machine checks. Correctable errors - * result in a short logout frame, uncorrectable ones in a long one. - */ -struct el_lca_mcheck_short { - struct el_common h; /* common logout header */ - unsigned long esr; /* error-status register */ - unsigned long ear; /* error-address register */ - unsigned long dc_stat; /* dcache status register */ - unsigned long ioc_stat0; /* I/O controller status register 0 */ - unsigned long ioc_stat1; /* I/O controller status register 1 */ -}; - -struct el_lca_mcheck_long { - struct el_common h; /* common logout header */ - unsigned long pt[31]; /* PAL temps */ - unsigned long exc_addr; /* exception address */ - unsigned long pad1[3]; - unsigned long pal_base; /* PALcode base address */ - unsigned long hier; /* hw interrupt enable */ - unsigned long hirr; /* hw interrupt request */ - unsigned long mm_csr; /* MMU control & status */ - unsigned long dc_stat; /* data cache status */ - unsigned long dc_addr; /* data cache addr register */ - unsigned long abox_ctl; /* address box control register */ - unsigned long esr; /* error status register */ - unsigned long ear; /* error address register */ - unsigned long car; /* cache control register */ - unsigned long ioc_stat0; /* I/O controller status register 0 */ - unsigned long ioc_stat1; /* I/O controller status register 1 */ - unsigned long va; /* virtual address register */ -}; - -union el_lca { - struct el_common * c; - struct el_lca_mcheck_long * l; - struct el_lca_mcheck_short * s; -}; - -#ifdef __KERNEL__ - -#ifndef __EXTERN_INLINE -#define __EXTERN_INLINE extern inline -#define __IO_EXTERN_INLINE -#endif - -/* - * I/O functions: - * - * Unlike Jensen, the Noname machines have no concept of local - * I/O---everything goes over the PCI bus. - * - * There is plenty room for optimization here. In particular, - * the Alpha's insb/insw/extb/extw should be useful in moving - * data to/from the right byte-lanes. - */ - -#define vip volatile int __force * -#define vuip volatile unsigned int __force * -#define vulp volatile unsigned long __force * - -#define LCA_SET_HAE \ - do { \ - if (addr >= (1UL << 24)) { \ - unsigned long msb = addr & 0xf8000000; \ - addr -= msb; \ - set_hae(msb); \ - } \ - } while (0) - - -__EXTERN_INLINE unsigned int lca_ioread8(void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long result, base_and_type; - - if (addr >= LCA_DENSE_MEM) { - addr -= LCA_DENSE_MEM; - LCA_SET_HAE; - base_and_type = LCA_SPARSE_MEM + 0x00; - } else { - addr -= LCA_IO; - base_and_type = LCA_IO + 0x00; - } - - result = *(vip) ((addr << 5) + base_and_type); - return __kernel_extbl(result, addr & 3); -} - -__EXTERN_INLINE void lca_iowrite8(u8 b, void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long w, base_and_type; - - if (addr >= LCA_DENSE_MEM) { - addr -= LCA_DENSE_MEM; - LCA_SET_HAE; - base_and_type = LCA_SPARSE_MEM + 0x00; - } else { - addr -= LCA_IO; - base_and_type = LCA_IO + 0x00; - } - - w = __kernel_insbl(b, addr & 3); - *(vuip) ((addr << 5) + base_and_type) = w; -} - -__EXTERN_INLINE unsigned int lca_ioread16(void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long result, base_and_type; - - if (addr >= LCA_DENSE_MEM) { - addr -= LCA_DENSE_MEM; - LCA_SET_HAE; - base_and_type = LCA_SPARSE_MEM + 0x08; - } else { - addr -= LCA_IO; - base_and_type = LCA_IO + 0x08; - } - - result = *(vip) ((addr << 5) + base_and_type); - return __kernel_extwl(result, addr & 3); -} - -__EXTERN_INLINE void lca_iowrite16(u16 b, void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long w, base_and_type; - - if (addr >= LCA_DENSE_MEM) { - addr -= LCA_DENSE_MEM; - LCA_SET_HAE; - base_and_type = LCA_SPARSE_MEM + 0x08; - } else { - addr -= LCA_IO; - base_and_type = LCA_IO + 0x08; - } - - w = __kernel_inswl(b, addr & 3); - *(vuip) ((addr << 5) + base_and_type) = w; -} - -__EXTERN_INLINE unsigned int lca_ioread32(void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - if (addr < LCA_DENSE_MEM) - addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18; - return *(vuip)addr; -} - -__EXTERN_INLINE void lca_iowrite32(u32 b, void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - if (addr < LCA_DENSE_MEM) - addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18; - *(vuip)addr = b; -} - -__EXTERN_INLINE void __iomem *lca_ioportmap(unsigned long addr) -{ - return (void __iomem *)(addr + LCA_IO); -} - -__EXTERN_INLINE void __iomem *lca_ioremap(unsigned long addr, - unsigned long size) -{ - return (void __iomem *)(addr + LCA_DENSE_MEM); -} - -__EXTERN_INLINE int lca_is_ioaddr(unsigned long addr) -{ - return addr >= IDENT_ADDR + 0x120000000UL; -} - -__EXTERN_INLINE int lca_is_mmio(const volatile void __iomem *addr) -{ - return (unsigned long)addr >= LCA_DENSE_MEM; -} - -#undef vip -#undef vuip -#undef vulp - -#undef __IO_PREFIX -#define __IO_PREFIX lca -#define lca_trivial_rw_bw 2 -#define lca_trivial_rw_lq 1 -#define lca_trivial_io_bw 0 -#define lca_trivial_io_lq 0 -#define lca_trivial_iounmap 1 -#include <asm/io_trivial.h> - -#ifdef __IO_EXTERN_INLINE -#undef __EXTERN_INLINE -#undef __IO_EXTERN_INLINE -#endif - -#endif /* __KERNEL__ */ - -#endif /* __ALPHA_LCA__H__ */ diff --git a/arch/alpha/include/asm/core_marvel.h b/arch/alpha/include/asm/core_marvel.h index dad300fa14ce..d99f3a82e0e5 100644 --- a/arch/alpha/include/asm/core_marvel.h +++ b/arch/alpha/include/asm/core_marvel.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Marvel systems use the IO7 I/O chip provides PCI/PCIX/AGP access * @@ -312,7 +313,7 @@ struct io7 { io7_port7_csrs *csrs; struct io7_port ports[IO7_NUM_PORTS]; - spinlock_t irq_lock; + raw_spinlock_t irq_lock; }; #ifndef __EXTERN_INLINE @@ -331,10 +332,10 @@ struct io7 { #define vucp volatile unsigned char __force * #define vusp volatile unsigned short __force * -extern unsigned int marvel_ioread8(void __iomem *); +extern u8 marvel_ioread8(const void __iomem *); extern void marvel_iowrite8(u8 b, void __iomem *); -__EXTERN_INLINE unsigned int marvel_ioread16(void __iomem *addr) +__EXTERN_INLINE u16 marvel_ioread16(const void __iomem *addr) { return __kernel_ldwu(*(vusp)addr); } diff --git a/arch/alpha/include/asm/core_mcpcia.h b/arch/alpha/include/asm/core_mcpcia.h index ad44bef29fba..ed2bf8ad40ed 100644 --- a/arch/alpha/include/asm/core_mcpcia.h +++ b/arch/alpha/include/asm/core_mcpcia.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_MCPCIA__H__ #define __ALPHA_MCPCIA__H__ @@ -247,6 +248,7 @@ struct el_MCPCIA_uncorrected_frame_mcheck { #define vip volatile int __force * #define vuip volatile unsigned int __force * +#define vulp volatile unsigned long __force * #ifndef MCPCIA_ONE_HAE_WINDOW #define MCPCIA_FROB_MMIO \ @@ -266,7 +268,7 @@ extern inline int __mcpcia_is_mmio(unsigned long addr) return (addr & 0x80000000UL) == 0; } -__EXTERN_INLINE unsigned int mcpcia_ioread8(void __iomem *xaddr) +__EXTERN_INLINE u8 mcpcia_ioread8(const void __iomem *xaddr) { unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK; unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK; @@ -290,7 +292,7 @@ __EXTERN_INLINE void mcpcia_iowrite8(u8 b, void __iomem *xaddr) *(vuip) ((addr << 5) + hose + 0x00) = w; } -__EXTERN_INLINE unsigned int mcpcia_ioread16(void __iomem *xaddr) +__EXTERN_INLINE u16 mcpcia_ioread16(const void __iomem *xaddr) { unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK; unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK; @@ -314,7 +316,7 @@ __EXTERN_INLINE void mcpcia_iowrite16(u16 b, void __iomem *xaddr) *(vuip) ((addr << 5) + hose + 0x08) = w; } -__EXTERN_INLINE unsigned int mcpcia_ioread32(void __iomem *xaddr) +__EXTERN_INLINE u32 mcpcia_ioread32(const void __iomem *xaddr) { unsigned long addr = (unsigned long)xaddr; @@ -334,6 +336,26 @@ __EXTERN_INLINE void mcpcia_iowrite32(u32 b, void __iomem *xaddr) *(vuip)addr = b; } +__EXTERN_INLINE u64 mcpcia_ioread64(const void __iomem *xaddr) +{ + unsigned long addr = (unsigned long)xaddr; + + if (!__mcpcia_is_mmio(addr)) + addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18; + + return *(vulp)addr; +} + +__EXTERN_INLINE void mcpcia_iowrite64(u64 b, void __iomem *xaddr) +{ + unsigned long addr = (unsigned long)xaddr; + + if (!__mcpcia_is_mmio(addr)) + addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18; + + *(vulp)addr = b; +} + __EXTERN_INLINE void __iomem *mcpcia_ioportmap(unsigned long addr) { @@ -361,6 +383,7 @@ __EXTERN_INLINE int mcpcia_is_mmio(const volatile void __iomem *xaddr) #undef vip #undef vuip +#undef vulp #undef __IO_PREFIX #define __IO_PREFIX mcpcia diff --git a/arch/alpha/include/asm/core_polaris.h b/arch/alpha/include/asm/core_polaris.h index 2f966b64659d..1c56dea647b5 100644 --- a/arch/alpha/include/asm/core_polaris.h +++ b/arch/alpha/include/asm/core_polaris.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_POLARIS__H__ #define __ALPHA_POLARIS__H__ diff --git a/arch/alpha/include/asm/core_t2.h b/arch/alpha/include/asm/core_t2.h index ade9d92e68b4..ca9b091d9c5f 100644 --- a/arch/alpha/include/asm/core_t2.h +++ b/arch/alpha/include/asm/core_t2.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_T2__H__ #define __ALPHA_T2__H__ @@ -24,16 +25,8 @@ #define T2_MEM_R1_MASK 0x07ffffff /* Mem sparse region 1 mask is 27 bits */ /* GAMMA-SABLE is a SABLE with EV5-based CPUs */ -/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */ #define _GAMMA_BIAS 0x8000000000UL - -#if defined(CONFIG_ALPHA_GENERIC) -#define GAMMA_BIAS alpha_mv.sys.t2.gamma_bias -#elif defined(CONFIG_ALPHA_GAMMA) #define GAMMA_BIAS _GAMMA_BIAS -#else -#define GAMMA_BIAS 0 -#endif /* * Memory spaces: @@ -359,6 +352,7 @@ struct el_t2_frame_corrected { #define vip volatile int * #define vuip volatile unsigned int * +#define vulp volatile unsigned long * extern inline u8 t2_inb(unsigned long addr) { @@ -401,6 +395,17 @@ extern inline void t2_outl(u32 b, unsigned long addr) mb(); } +extern inline u64 t2_inq(unsigned long addr) +{ + return *(vulp) ((addr << 5) + T2_IO + 0x18); +} + +extern inline void t2_outq(u64 b, unsigned long addr) +{ + *(vulp) ((addr << 5) + T2_IO + 0x18) = b; + mb(); +} + /* * Memory functions. @@ -571,7 +576,7 @@ __EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr) it doesn't make sense to merge the pio and mmio routines. */ #define IOPORT(OS, NS) \ -__EXTERN_INLINE unsigned int t2_ioread##NS(void __iomem *xaddr) \ +__EXTERN_INLINE u##NS t2_ioread##NS(const void __iomem *xaddr) \ { \ if (t2_is_mmio(xaddr)) \ return t2_read##OS(xaddr); \ @@ -589,11 +594,13 @@ __EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr) \ IOPORT(b, 8) IOPORT(w, 16) IOPORT(l, 32) +IOPORT(q, 64) #undef IOPORT #undef vip #undef vuip +#undef vulp #undef __IO_PREFIX #define __IO_PREFIX t2 diff --git a/arch/alpha/include/asm/core_titan.h b/arch/alpha/include/asm/core_titan.h index 8cf79d1219e1..dcc02682c1e1 100644 --- a/arch/alpha/include/asm/core_titan.h +++ b/arch/alpha/include/asm/core_titan.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_TITAN__H__ #define __ALPHA_TITAN__H__ diff --git a/arch/alpha/include/asm/core_tsunami.h b/arch/alpha/include/asm/core_tsunami.h index 8e39ecf09419..3391e95754f2 100644 --- a/arch/alpha/include/asm/core_tsunami.h +++ b/arch/alpha/include/asm/core_tsunami.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_TSUNAMI__H__ #define __ALPHA_TSUNAMI__H__ diff --git a/arch/alpha/include/asm/core_wildfire.h b/arch/alpha/include/asm/core_wildfire.h index cd562f544ba2..5d1b37f412cd 100644 --- a/arch/alpha/include/asm/core_wildfire.h +++ b/arch/alpha/include/asm/core_wildfire.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_WILDFIRE__H__ #define __ALPHA_WILDFIRE__H__ diff --git a/arch/alpha/include/asm/cputime.h b/arch/alpha/include/asm/cputime.h deleted file mode 100644 index 19577fd93230..000000000000 --- a/arch/alpha/include/asm/cputime.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __ALPHA_CPUTIME_H -#define __ALPHA_CPUTIME_H - -#include <asm-generic/cputime.h> - -#endif /* __ALPHA_CPUTIME_H */ diff --git a/arch/alpha/include/asm/current.h b/arch/alpha/include/asm/current.h deleted file mode 100644 index 094d285a1b34..000000000000 --- a/arch/alpha/include/asm/current.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef _ALPHA_CURRENT_H -#define _ALPHA_CURRENT_H - -#include <linux/thread_info.h> - -#define get_current() (current_thread_info()->task) -#define current get_current() - -#endif /* _ALPHA_CURRENT_H */ diff --git a/arch/alpha/include/asm/delay.h b/arch/alpha/include/asm/delay.h index 2aa3f410f7e6..868aa61aba2f 100644 --- a/arch/alpha/include/asm/delay.h +++ b/arch/alpha/include/asm/delay.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_DELAY_H #define __ALPHA_DELAY_H diff --git a/arch/alpha/include/asm/device.h b/arch/alpha/include/asm/device.h index d8f9872b0e2d..9ca75a7db23e 100644 --- a/arch/alpha/include/asm/device.h +++ b/arch/alpha/include/asm/device.h @@ -1,7 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Arch specific extensions to struct device - * - * This file is released under the GPLv2 */ #include <asm-generic/device.h> diff --git a/arch/alpha/include/asm/div64.h b/arch/alpha/include/asm/div64.h deleted file mode 100644 index 6cd978cefb28..000000000000 --- a/arch/alpha/include/asm/div64.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/div64.h> diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h index dfa32f061320..ad5a59b035cb 100644 --- a/arch/alpha/include/asm/dma-mapping.h +++ b/arch/alpha/include/asm/dma-mapping.h @@ -1,53 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_DMA_MAPPING_H #define _ALPHA_DMA_MAPPING_H -#include <linux/dma-attrs.h> +extern const struct dma_map_ops alpha_pci_ops; -extern struct dma_map_ops *dma_ops; - -static inline struct dma_map_ops *get_dma_ops(struct device *dev) -{ - return dma_ops; -} - -#include <asm-generic/dma-mapping-common.h> - -#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) - -static inline void *dma_alloc_attrs(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, - struct dma_attrs *attrs) +static inline const struct dma_map_ops *get_arch_dma_ops(void) { - return get_dma_ops(dev)->alloc(dev, size, dma_handle, gfp, attrs); + return &alpha_pci_ops; } -#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) - -static inline void dma_free_attrs(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle, - struct dma_attrs *attrs) -{ - get_dma_ops(dev)->free(dev, size, vaddr, dma_handle, attrs); -} - -static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return get_dma_ops(dev)->mapping_error(dev, dma_addr); -} - -static inline int dma_supported(struct device *dev, u64 mask) -{ - return get_dma_ops(dev)->dma_supported(dev, mask); -} - -static inline int dma_set_mask(struct device *dev, u64 mask) -{ - return get_dma_ops(dev)->set_dma_mask(dev, mask); -} - -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - -#define dma_cache_sync(dev, va, size, dir) ((void)0) - #endif /* _ALPHA_DMA_MAPPING_H */ diff --git a/arch/alpha/include/asm/dma.h b/arch/alpha/include/asm/dma.h index 87cfdbdf08fc..3a88812b7165 100644 --- a/arch/alpha/include/asm/dma.h +++ b/arch/alpha/include/asm/dma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * include/asm-alpha/dma.h * @@ -81,11 +82,6 @@ just a wiring limit. */ -/* The maximum address for ISA DMA transfer on Alpha XL, due to an - hardware SIO limitation, is 64MB. -*/ -#define ALPHA_XL_MAX_ISA_DMA_ADDRESS 0x04000000UL - /* The maximum address for ISA DMA transfer on RUFFIAN, due to an hardware SIO limitation, is 16MB. */ @@ -106,9 +102,7 @@ #ifdef CONFIG_ALPHA_GENERIC # define MAX_ISA_DMA_ADDRESS (alpha_mv.max_isa_dma_address) #else -# if defined(CONFIG_ALPHA_XL) -# define MAX_ISA_DMA_ADDRESS ALPHA_XL_MAX_ISA_DMA_ADDRESS -# elif defined(CONFIG_ALPHA_RUFFIAN) +# if defined(CONFIG_ALPHA_RUFFIAN) # define MAX_ISA_DMA_ADDRESS ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS # elif defined(CONFIG_ALPHA_SABLE) # define MAX_ISA_DMA_ADDRESS ALPHA_SABLE_MAX_ISA_DMA_ADDRESS @@ -364,13 +358,4 @@ extern void free_dma(unsigned int dmanr); /* release it again */ #define KERNEL_HAVE_CHECK_DMA extern int check_dma(unsigned int dmanr); -/* From PCI */ - -#ifdef CONFIG_PCI -extern int isa_dma_bridge_buggy; -#else -#define isa_dma_bridge_buggy (0) -#endif - - #endif /* _ASM_DMA_H */ diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h index 968d9991f5ee..50c82187e60e 100644 --- a/arch/alpha/include/asm/elf.h +++ b/arch/alpha/include/asm/elf.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_ALPHA_ELF_H #define __ASM_ALPHA_ELF_H @@ -73,7 +74,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; /* * This is used to ensure we don't load something for the wrong architecture. */ -#define elf_check_arch(x) ((x)->e_machine == EM_ALPHA) +#define elf_check_arch(x) (((x)->e_machine == EM_ALPHA) && !((x)->e_flags & EF_ALPHA_32BIT)) /* * These are used to set parameters in the core dumps. @@ -119,12 +120,6 @@ extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task); #define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \ dump_elf_task(*(DEST), TASK) -/* Similar, but for the FP registers. */ - -extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task); -#define ELF_CORE_COPY_FPREGS(TASK, DEST) \ - dump_elf_task_fp(*(DEST), TASK) - /* This yields a mask that user programs can use to figure out what instruction set this CPU supports. This is trivial on Alpha, but not so on other machines. */ @@ -138,16 +133,10 @@ extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task); #define ELF_PLATFORM \ ({ \ enum implver_enum i_ = implver(); \ - ( i_ == IMPLVER_EV4 ? "ev4" \ - : i_ == IMPLVER_EV5 \ - ? (amask(AMASK_BWX) ? "ev5" : "ev56") \ + ( i_ == IMPLVER_EV5 ? "ev56" \ : amask (AMASK_CIX) ? "ev6" : "ev67"); \ }) -#define SET_PERSONALITY(EX) \ - set_personality(((EX).e_flags & EF_ALPHA_32BIT) \ - ? PER_LINUX_32BIT : PER_LINUX) - extern int alpha_l1i_cacheshape; extern int alpha_l1d_cacheshape; extern int alpha_l2_cacheshape; diff --git a/arch/alpha/include/asm/err_common.h b/arch/alpha/include/asm/err_common.h index c25095942107..610e01fe73ab 100644 --- a/arch/alpha/include/asm/err_common.h +++ b/arch/alpha/include/asm/err_common.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/include/asm-alpha/err_common.h * diff --git a/arch/alpha/include/asm/err_ev7.h b/arch/alpha/include/asm/err_ev7.h index 87f99777c2e4..ab17e6333764 100644 --- a/arch/alpha/include/asm/err_ev7.h +++ b/arch/alpha/include/asm/err_ev7.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_ERR_EV7_H #define __ALPHA_ERR_EV7_H 1 diff --git a/arch/alpha/include/asm/extable.h b/arch/alpha/include/asm/extable.h new file mode 100644 index 000000000000..e42592390ee0 --- /dev/null +++ b/arch/alpha/include/asm/extable.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_EXTABLE_H +#define _ASM_EXTABLE_H + +/* + * About the exception table: + * + * - insn is a 32-bit pc-relative offset from the faulting insn. + * - nextinsn is a 16-bit offset off of the faulting instruction + * (not off of the *next* instruction as branches are). + * - errreg is the register in which to place -EFAULT. + * - valreg is the final target register for the load sequence + * and will be zeroed. + * + * Either errreg or valreg may be $31, in which case nothing happens. + * + * The exception fixup information "just so happens" to be arranged + * as in a MEM format instruction. This lets us emit our three + * values like so: + * + * lda valreg, nextinsn(errreg) + * + */ + +struct exception_table_entry +{ + signed int insn; + union exception_fixup { + unsigned unit; + struct { + signed int nextinsn : 16; + unsigned int errreg : 5; + unsigned int valreg : 5; + } bits; + } fixup; +}; + +/* Returns the new pc */ +#define fixup_exception(map_reg, _fixup, pc) \ +({ \ + if ((_fixup)->fixup.bits.valreg != 31) \ + map_reg((_fixup)->fixup.bits.valreg) = 0; \ + if ((_fixup)->fixup.bits.errreg != 31) \ + map_reg((_fixup)->fixup.bits.errreg) = -EFAULT; \ + (pc) + (_fixup)->fixup.bits.nextinsn; \ +}) + +#define ARCH_HAS_RELATIVE_EXTABLE + +#define swap_ex_entry_fixup(a, b, tmp, delta) \ + do { \ + (a)->fixup.unit = (b)->fixup.unit; \ + (b)->fixup.unit = (tmp).fixup.unit; \ + } while (0) + +#endif diff --git a/arch/alpha/include/asm/fb.h b/arch/alpha/include/asm/fb.h deleted file mode 100644 index fa9bbb96b2b3..000000000000 --- a/arch/alpha/include/asm/fb.h +++ /dev/null @@ -1,13 +0,0 @@ -#ifndef _ASM_FB_H_ -#define _ASM_FB_H_ -#include <linux/device.h> - -/* Caching is off in the I/O space quadrant by design. */ -#define fb_pgprotect(...) do {} while (0) - -static inline int fb_is_primary_device(struct fb_info *info) -{ - return 0; -} - -#endif /* _ASM_FB_H_ */ diff --git a/arch/alpha/include/asm/floppy.h b/arch/alpha/include/asm/floppy.h index bae97eb19d26..5a6239e65097 100644 --- a/arch/alpha/include/asm/floppy.h +++ b/arch/alpha/include/asm/floppy.h @@ -11,8 +11,8 @@ #define __ASM_ALPHA_FLOPPY_H -#define fd_inb(port) inb_p(port) -#define fd_outb(value,port) outb_p(value,port) +#define fd_inb(base, reg) inb_p((base) + (reg)) +#define fd_outb(value, base, reg) outb_p(value, (base) + (reg)) #define fd_enable_dma() enable_dma(FLOPPY_DMA) #define fd_disable_dma() disable_dma(FLOPPY_DMA) @@ -20,11 +20,10 @@ #define fd_free_dma() free_dma(FLOPPY_DMA) #define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA) #define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode) -#define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA,virt_to_bus(addr)) +#define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA,isa_virt_to_bus(addr)) #define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count) #define fd_enable_irq() enable_irq(FLOPPY_IRQ) #define fd_disable_irq() disable_irq(FLOPPY_IRQ) -#define fd_cacheflush(addr,size) /* nothing */ #define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt,\ 0, "floppy", NULL) #define fd_free_irq() free_irq(FLOPPY_IRQ, NULL) @@ -44,17 +43,18 @@ alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io) static int prev_dir; int dir; - dir = (mode != DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE; + dir = (mode != DMA_MODE_READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; if (bus_addr && (addr != prev_addr || size != prev_size || dir != prev_dir)) { /* different from last time -- unmap prev */ - pci_unmap_single(isa_bridge, bus_addr, prev_size, prev_dir); + dma_unmap_single(&isa_bridge->dev, bus_addr, prev_size, + prev_dir); bus_addr = 0; } if (!bus_addr) /* need to map it */ - bus_addr = pci_map_single(isa_bridge, addr, size, dir); + bus_addr = dma_map_single(&isa_bridge->dev, addr, size, dir); /* remember this one as prev */ prev_addr = addr; @@ -62,7 +62,6 @@ alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io) prev_dir = dir; fd_clear_dma_ff(); - fd_cacheflush(addr, size); fd_set_dma_mode(mode); set_dma_addr(FLOPPY_DMA, bus_addr); fd_set_dma_count(size); @@ -91,25 +90,6 @@ static int FDC2 = -1; #define N_FDC 2 #define N_DRIVE 8 -/* - * Most Alphas have no problems with floppy DMA crossing 64k borders, - * except for certain ones, like XL and RUFFIAN. - * - * However, the test is simple and fast, and this *is* floppy, after all, - * so we do it for all platforms, just to make sure. - * - * This is advantageous in other circumstances as well, as in moving - * about the PCI DMA windows and forcing the floppy to start doing - * scatter-gather when it never had before, and there *is* a problem - * on that platform... ;-} - */ - -static inline unsigned long CROSS_64KB(void *a, unsigned long s) -{ - unsigned long p = (unsigned long)a; - return ((p + s - 1) ^ p) & ~0xffffUL; -} - #define EXTRA_FLOPPY_PARAMS #endif /* __ASM_ALPHA_FLOPPY_H */ diff --git a/arch/alpha/include/asm/fpu.h b/arch/alpha/include/asm/fpu.h index 71c20956b905..30b24135dd7a 100644 --- a/arch/alpha/include/asm/fpu.h +++ b/arch/alpha/include/asm/fpu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_ALPHA_FPU_H #define __ASM_ALPHA_FPU_H @@ -14,21 +15,27 @@ rdfpcr(void) { unsigned long tmp, ret; + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + ret = current_thread_info()->fp[31]; + } else { #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) - __asm__ __volatile__ ( - "ftoit $f0,%0\n\t" - "mf_fpcr $f0\n\t" - "ftoit $f0,%1\n\t" - "itoft %0,$f0" - : "=r"(tmp), "=r"(ret)); + __asm__ __volatile__ ( + "ftoit $f0,%0\n\t" + "mf_fpcr $f0\n\t" + "ftoit $f0,%1\n\t" + "itoft %0,$f0" + : "=r"(tmp), "=r"(ret)); #else - __asm__ __volatile__ ( - "stt $f0,%0\n\t" - "mf_fpcr $f0\n\t" - "stt $f0,%1\n\t" - "ldt $f0,%0" - : "=m"(tmp), "=m"(ret)); + __asm__ __volatile__ ( + "stt $f0,%0\n\t" + "mf_fpcr $f0\n\t" + "stt $f0,%1\n\t" + "ldt $f0,%0" + : "=m"(tmp), "=m"(ret)); #endif + } + preempt_enable(); return ret; } @@ -38,21 +45,28 @@ wrfpcr(unsigned long val) { unsigned long tmp; + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + current_thread_info()->status |= TS_RESTORE_FP; + current_thread_info()->fp[31] = val; + } else { #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) - __asm__ __volatile__ ( - "ftoit $f0,%0\n\t" - "itoft %1,$f0\n\t" - "mt_fpcr $f0\n\t" - "itoft %0,$f0" - : "=&r"(tmp) : "r"(val)); + __asm__ __volatile__ ( + "ftoit $f0,%0\n\t" + "itoft %1,$f0\n\t" + "mt_fpcr $f0\n\t" + "itoft %0,$f0" + : "=&r"(tmp) : "r"(val)); #else - __asm__ __volatile__ ( - "stt $f0,%0\n\t" - "ldt $f0,%1\n\t" - "mt_fpcr $f0\n\t" - "ldt $f0,%0" - : "=m"(tmp) : "m"(val)); + __asm__ __volatile__ ( + "stt $f0,%0\n\t" + "ldt $f0,%1\n\t" + "mt_fpcr $f0\n\t" + "ldt $f0,%0" + : "=m"(tmp) : "m"(val)); #endif + } + preempt_enable(); } static inline unsigned long diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h index f939794363ac..da67afd578fd 100644 --- a/arch/alpha/include/asm/futex.h +++ b/arch/alpha/include/asm/futex.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_ALPHA_FUTEX_H #define _ASM_ALPHA_FUTEX_H @@ -19,31 +20,20 @@ "3: .subsection 2\n" \ "4: br 1b\n" \ " .previous\n" \ - " .section __ex_table,\"a\"\n" \ - " .long 1b-.\n" \ - " lda $31,3b-1b(%1)\n" \ - " .long 2b-.\n" \ - " lda $31,3b-2b(%1)\n" \ - " .previous\n" \ + EXC(1b,3b,$31,%1) \ + EXC(2b,3b,$31,%1) \ : "=&r" (oldval), "=&r"(ret) \ : "r" (uaddr), "r"(oparg) \ : "memory") -static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) +static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, + u32 __user *uaddr) { - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; - int oparg = (encoded_op << 8) >> 20; - int cmparg = (encoded_op << 20) >> 20; int oldval = 0, ret; - if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) - oparg = 1 << oparg; - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) + if (!access_ok(uaddr, sizeof(u32))) return -EFAULT; - pagefault_disable(); - switch (op) { case FUTEX_OP_SET: __futex_atomic_op("mov %3,%1\n", ret, oldval, uaddr, oparg); @@ -64,19 +54,9 @@ static inline int futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); + if (!ret) + *oval = oldval; - if (!ret) { - switch (cmp) { - case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; - case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; - case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; - case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; - case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; - case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; - default: ret = -ENOSYS; - } - } return ret; } @@ -87,7 +67,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, int ret = 0, cmp; u32 prev; - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) + if (!access_ok(uaddr, sizeof(u32))) return -EFAULT; __asm__ __volatile__ ( @@ -101,12 +81,8 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, "3: .subsection 2\n" "4: br 1b\n" " .previous\n" - " .section __ex_table,\"a\"\n" - " .long 1b-.\n" - " lda $31,3b-1b(%0)\n" - " .long 2b-.\n" - " lda $31,3b-2b(%0)\n" - " .previous\n" + EXC(1b,3b,$31,%0) + EXC(2b,3b,$31,%0) : "+r"(ret), "=&r"(prev), "=&r"(cmp) : "r"(uaddr), "r"((long)(int)oldval), "r"(newval) : "memory"); diff --git a/arch/alpha/include/asm/gct.h b/arch/alpha/include/asm/gct.h index 3504c704927c..2847449fb168 100644 --- a/arch/alpha/include/asm/gct.h +++ b/arch/alpha/include/asm/gct.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_GCT_H #define __ALPHA_GCT_H diff --git a/arch/alpha/include/asm/gpio.h b/arch/alpha/include/asm/gpio.h deleted file mode 100644 index b3799d88ffcf..000000000000 --- a/arch/alpha/include/asm/gpio.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __LINUX_GPIO_H -#warning Include linux/gpio.h instead of asm/gpio.h -#include <linux/gpio.h> -#endif diff --git a/arch/alpha/include/asm/hardirq.h b/arch/alpha/include/asm/hardirq.h index 242c09ba98c4..5ce5b34e8a1a 100644 --- a/arch/alpha/include/asm/hardirq.h +++ b/arch/alpha/include/asm/hardirq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_HARDIRQ_H #define _ALPHA_HARDIRQ_H diff --git a/arch/alpha/include/asm/hw_irq.h b/arch/alpha/include/asm/hw_irq.h index 5050ac81cd90..e2d81ac0d934 100644 --- a/arch/alpha/include/asm/hw_irq.h +++ b/arch/alpha/include/asm/hw_irq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_HW_IRQ_H #define _ALPHA_HW_IRQ_H diff --git a/arch/alpha/include/asm/hwrpb.h b/arch/alpha/include/asm/hwrpb.h index 8e8f871af7cf..db831cf8de10 100644 --- a/arch/alpha/include/asm/hwrpb.h +++ b/arch/alpha/include/asm/hwrpb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_HWRPB_H #define __ALPHA_HWRPB_H @@ -134,7 +135,7 @@ struct crb_struct { /* virtual->physical map */ unsigned long map_entries; unsigned long map_pages; - struct vf_map_struct map[1]; + struct vf_map_struct map[]; }; struct memclust_struct { @@ -151,7 +152,7 @@ struct memdesc_struct { unsigned long chksum; unsigned long optional_pa; unsigned long numclusters; - struct memclust_struct cluster[0]; + struct memclust_struct cluster[]; }; struct dsr_struct { diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h index 5ebab5895edb..fa3e4c246cda 100644 --- a/arch/alpha/include/asm/io.h +++ b/arch/alpha/include/asm/io.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_IO_H #define __ALPHA_IO_H @@ -6,18 +7,9 @@ #include <linux/kernel.h> #include <linux/mm.h> #include <asm/compiler.h> -#include <asm/pgtable.h> #include <asm/machvec.h> #include <asm/hwrpb.h> -/* The generic header contains only prototypes. Including it ensures that - the implementation we have here matches that interface. */ -#include <asm-generic/iomap.h> - -/* We don't use IO slowdowns on the Alpha, but.. */ -#define __SLOW_DOWN_IO do { } while (0) -#define SLOW_DOWN_IO do { } while (0) - /* * Virtual -> physical identity mapping starts at this offset */ @@ -60,7 +52,7 @@ extern inline void set_hae(unsigned long new_hae) * Change virtual addresses to physical addresses and vv. */ #ifdef USE_48_BIT_KSEG -static inline unsigned long virt_to_phys(void *address) +static inline unsigned long virt_to_phys(volatile void *address) { return (unsigned long)address - IDENT_ADDR; } @@ -70,7 +62,7 @@ static inline void * phys_to_virt(unsigned long address) return (void *) (address + IDENT_ADDR); } #else -static inline unsigned long virt_to_phys(void *address) +static inline unsigned long virt_to_phys(volatile void *address) { unsigned long phys = (unsigned long)address; @@ -90,12 +82,8 @@ static inline void * phys_to_virt(unsigned long address) } #endif -#define page_to_phys(page) page_to_pa(page) - -static inline dma_addr_t __deprecated isa_page_to_bus(struct page *page) -{ - return page_to_phys(page); -} +#define virt_to_phys virt_to_phys +#define phys_to_virt phys_to_virt /* Maximum PIO space address supported? */ #define IO_SPACE_LIMIT 0xffff @@ -111,15 +99,15 @@ static inline dma_addr_t __deprecated isa_page_to_bus(struct page *page) extern unsigned long __direct_map_base; extern unsigned long __direct_map_size; -static inline unsigned long __deprecated virt_to_bus(void *address) +static inline unsigned long __deprecated isa_virt_to_bus(volatile void *address) { unsigned long phys = virt_to_phys(address); unsigned long bus = phys + __direct_map_base; return phys <= __direct_map_size ? bus : 0; } -#define isa_virt_to_bus virt_to_bus +#define isa_virt_to_bus isa_virt_to_bus -static inline void * __deprecated bus_to_virt(unsigned long address) +static inline void * __deprecated isa_bus_to_virt(unsigned long address) { void *virt; @@ -130,7 +118,7 @@ static inline void * __deprecated bus_to_virt(unsigned long address) virt = phys_to_virt(address); return (long)address <= 0 ? NULL : virt; } -#define isa_bus_to_virt bus_to_virt +#define isa_bus_to_virt isa_bus_to_virt /* * There are different chipsets to interface the Alpha CPUs to the world. @@ -155,9 +143,10 @@ static inline void generic_##NAME(TYPE b, QUAL void __iomem *addr) \ alpha_mv.mv_##NAME(b, addr); \ } -REMAP1(unsigned int, ioread8, /**/) -REMAP1(unsigned int, ioread16, /**/) -REMAP1(unsigned int, ioread32, /**/) +REMAP1(unsigned int, ioread8, const) +REMAP1(unsigned int, ioread16, const) +REMAP1(unsigned int, ioread32, const) +REMAP1(u64, ioread64, const) REMAP1(u8, readb, const volatile) REMAP1(u16, readw, const volatile) REMAP1(u32, readl, const volatile) @@ -166,6 +155,7 @@ REMAP1(u64, readq, const volatile) REMAP2(u8, iowrite8, /**/) REMAP2(u16, iowrite16, /**/) REMAP2(u32, iowrite32, /**/) +REMAP2(u64, iowrite64, /**/) REMAP2(u8, writeb, volatile) REMAP2(u16, writew, volatile) REMAP2(u32, writel, volatile) @@ -208,16 +198,10 @@ static inline int generic_is_mmio(const volatile void __iomem *a) #else -#if defined(CONFIG_ALPHA_APECS) -# include <asm/core_apecs.h> -#elif defined(CONFIG_ALPHA_CIA) +#if defined(CONFIG_ALPHA_CIA) # include <asm/core_cia.h> #elif defined(CONFIG_ALPHA_IRONGATE) # include <asm/core_irongate.h> -#elif defined(CONFIG_ALPHA_JENSEN) -# include <asm/jensen.h> -#elif defined(CONFIG_ALPHA_LCA) -# include <asm/core_lca.h> #elif defined(CONFIG_ALPHA_MARVEL) # include <asm/core_marvel.h> #elif defined(CONFIG_ALPHA_MCPCIA) @@ -247,6 +231,12 @@ extern u32 inl(unsigned long port); extern void outb(u8 b, unsigned long port); extern void outw(u16 b, unsigned long port); extern void outl(u32 b, unsigned long port); +#define inb inb +#define inw inw +#define inl inl +#define outb outb +#define outw outw +#define outl outl extern u8 readb(const volatile void __iomem *addr); extern u16 readw(const volatile void __iomem *addr); @@ -256,6 +246,14 @@ extern void writeb(u8 b, volatile void __iomem *addr); extern void writew(u16 b, volatile void __iomem *addr); extern void writel(u32 b, volatile void __iomem *addr); extern void writeq(u64 b, volatile void __iomem *addr); +#define readb readb +#define readw readw +#define readl readl +#define readq readq +#define writeb writeb +#define writew writew +#define writel writel +#define writeq writeq extern u8 __raw_readb(const volatile void __iomem *addr); extern u16 __raw_readw(const volatile void __iomem *addr); @@ -265,14 +263,33 @@ extern void __raw_writeb(u8 b, volatile void __iomem *addr); extern void __raw_writew(u16 b, volatile void __iomem *addr); extern void __raw_writel(u32 b, volatile void __iomem *addr); extern void __raw_writeq(u64 b, volatile void __iomem *addr); +#define __raw_readb __raw_readb +#define __raw_readw __raw_readw +#define __raw_readl __raw_readl +#define __raw_readq __raw_readq +#define __raw_writeb __raw_writeb +#define __raw_writew __raw_writew +#define __raw_writel __raw_writel +#define __raw_writeq __raw_writeq + +extern unsigned int ioread8(const void __iomem *); +extern unsigned int ioread16(const void __iomem *); +extern unsigned int ioread32(const void __iomem *); +extern u64 ioread64(const void __iomem *); + +extern void iowrite8(u8, void __iomem *); +extern void iowrite16(u16, void __iomem *); +extern void iowrite32(u32, void __iomem *); +extern void iowrite64(u64, void __iomem *); + +extern void ioread8_rep(const void __iomem *port, void *buf, unsigned long count); +extern void ioread16_rep(const void __iomem *port, void *buf, unsigned long count); +extern void ioread32_rep(const void __iomem *port, void *buf, unsigned long count); + +extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count); +extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count); +extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count); -/* - * Mapping from port numbers to __iomem space is pretty easy. - */ - -/* These two have to be extern inline because of the extern prototype from - <asm-generic/iomap.h>. It is not legal to mix "extern" and "static" for - the same declaration. */ extern inline void __iomem *ioport_map(unsigned long port, unsigned int size) { return IO_CONCAT(__IO_PREFIX,ioportmap) (port); @@ -282,22 +299,15 @@ extern inline void ioport_unmap(void __iomem *addr) { } +#define ioport_map ioport_map +#define ioport_unmap ioport_unmap + static inline void __iomem *ioremap(unsigned long port, unsigned long size) { return IO_CONCAT(__IO_PREFIX,ioremap) (port, size); } -static inline void __iomem *__ioremap(unsigned long port, unsigned long size, - unsigned long flags) -{ - return ioremap(port, size); -} - -static inline void __iomem * ioremap_nocache(unsigned long offset, - unsigned long size) -{ - return ioremap(offset, size); -} +#define ioremap_wc ioremap static inline void iounmap(volatile void __iomem *addr) { @@ -321,30 +331,34 @@ static inline int __is_mmio(const volatile void __iomem *addr) */ #if IO_CONCAT(__IO_PREFIX,trivial_io_bw) -extern inline unsigned int ioread8(void __iomem *addr) +extern inline unsigned int ioread8(const void __iomem *addr) { - unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr); + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr); mb(); return ret; } -extern inline unsigned int ioread16(void __iomem *addr) +extern inline unsigned int ioread16(const void __iomem *addr) { - unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr); + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr); mb(); return ret; } extern inline void iowrite8(u8 b, void __iomem *addr) { - IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr); mb(); + IO_CONCAT(__IO_PREFIX, iowrite8)(b, addr); } extern inline void iowrite16(u16 b, void __iomem *addr) { - IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr); mb(); + IO_CONCAT(__IO_PREFIX, iowrite16)(b, addr); } extern inline u8 inb(unsigned long port) @@ -368,18 +382,40 @@ extern inline void outw(u16 b, unsigned long port) } #endif +#define ioread8 ioread8 +#define ioread16 ioread16 +#define iowrite8 iowrite8 +#define iowrite16 iowrite16 + #if IO_CONCAT(__IO_PREFIX,trivial_io_lq) -extern inline unsigned int ioread32(void __iomem *addr) +extern inline unsigned int ioread32(const void __iomem *addr) { - unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr); + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr); + mb(); + return ret; +} + +extern inline u64 ioread64(const void __iomem *addr) +{ + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread64)(addr); mb(); return ret; } extern inline void iowrite32(u32 b, void __iomem *addr) { - IO_CONCAT(__IO_PREFIX,iowrite32)(b, addr); mb(); + IO_CONCAT(__IO_PREFIX, iowrite32)(b, addr); +} + +extern inline void iowrite64(u64 b, void __iomem *addr) +{ + mb(); + IO_CONCAT(__IO_PREFIX, iowrite64)(b, addr); } extern inline u32 inl(unsigned long port) @@ -393,6 +429,11 @@ extern inline void outl(u32 b, unsigned long port) } #endif +#define ioread32 ioread32 +#define ioread64 ioread64 +#define iowrite32 iowrite32 +#define iowrite64 iowrite64 + #if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1 extern inline u8 __raw_readb(const volatile void __iomem *addr) { @@ -416,28 +457,32 @@ extern inline void __raw_writew(u16 b, volatile void __iomem *addr) extern inline u8 readb(const volatile void __iomem *addr) { - u8 ret = __raw_readb(addr); + u8 ret; + mb(); + ret = __raw_readb(addr); mb(); return ret; } extern inline u16 readw(const volatile void __iomem *addr) { - u16 ret = __raw_readw(addr); + u16 ret; + mb(); + ret = __raw_readw(addr); mb(); return ret; } extern inline void writeb(u8 b, volatile void __iomem *addr) { - __raw_writeb(b, addr); mb(); + __raw_writeb(b, addr); } extern inline void writew(u16 b, volatile void __iomem *addr) { - __raw_writew(b, addr); mb(); + __raw_writew(b, addr); } #endif @@ -464,35 +509,41 @@ extern inline void __raw_writeq(u64 b, volatile void __iomem *addr) extern inline u32 readl(const volatile void __iomem *addr) { - u32 ret = __raw_readl(addr); + u32 ret; + mb(); + ret = __raw_readl(addr); mb(); return ret; } extern inline u64 readq(const volatile void __iomem *addr) { - u64 ret = __raw_readq(addr); + u64 ret; + mb(); + ret = __raw_readq(addr); mb(); return ret; } extern inline void writel(u32 b, volatile void __iomem *addr) { - __raw_writel(b, addr); mb(); + __raw_writel(b, addr); } extern inline void writeq(u64 b, volatile void __iomem *addr) { - __raw_writeq(b, addr); mb(); + __raw_writeq(b, addr); } #endif -#define ioread16be(p) be16_to_cpu(ioread16(p)) -#define ioread32be(p) be32_to_cpu(ioread32(p)) -#define iowrite16be(v,p) iowrite16(cpu_to_be16(v), (p)) -#define iowrite32be(v,p) iowrite32(cpu_to_be32(v), (p)) +#define ioread16be(p) swab16(ioread16(p)) +#define ioread32be(p) swab32(ioread32(p)) +#define ioread64be(p) swab64(ioread64(p)) +#define iowrite16be(v,p) iowrite16(swab16(v), (p)) +#define iowrite32be(v,p) iowrite32(swab32(v), (p)) +#define iowrite64be(v,p) iowrite64(swab64(v), (p)) #define inb_p inb #define inw_p inw @@ -500,12 +551,48 @@ extern inline void writeq(u64 b, volatile void __iomem *addr) #define outb_p outb #define outw_p outw #define outl_p outl -#define readb_relaxed(addr) __raw_readb(addr) -#define readw_relaxed(addr) __raw_readw(addr) -#define readl_relaxed(addr) __raw_readl(addr) -#define readq_relaxed(addr) __raw_readq(addr) -#define mmiowb() +extern u8 readb_relaxed(const volatile void __iomem *addr); +extern u16 readw_relaxed(const volatile void __iomem *addr); +extern u32 readl_relaxed(const volatile void __iomem *addr); +extern u64 readq_relaxed(const volatile void __iomem *addr); +#define readb_relaxed readb_relaxed +#define readw_relaxed readw_relaxed +#define readl_relaxed readl_relaxed +#define readq_relaxed readq_relaxed + +#if IO_CONCAT(__IO_PREFIX,trivial_io_bw) +extern inline u8 readb_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readb(addr); +} + +extern inline u16 readw_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readw(addr); +} +#endif + +#if IO_CONCAT(__IO_PREFIX,trivial_io_lq) +extern inline u32 readl_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readl(addr); +} + +extern inline u64 readq_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readq(addr); +} +#endif + +#define writeb_relaxed writeb +#define writew_relaxed writew +#define writel_relaxed writel +#define writeq_relaxed writeq /* * String version of IO memory access ops: @@ -525,6 +612,10 @@ static inline void memsetw_io(volatile void __iomem *addr, u16 c, long len) _memset_c_io(addr, 0x0001000100010001UL * c, len); } +#define memset_io memset_io +#define memcpy_fromio memcpy_fromio +#define memcpy_toio memcpy_toio + /* * String versions of in/out ops: */ @@ -535,45 +626,27 @@ extern void outsb (unsigned long port, const void *src, unsigned long count); extern void outsw (unsigned long port, const void *src, unsigned long count); extern void outsl (unsigned long port, const void *src, unsigned long count); -/* - * The Alpha Jensen hardware for some rather strange reason puts - * the RTC clock at 0x170 instead of 0x70. Probably due to some - * misguided idea about using 0x70 for NMI stuff. - * - * These defines will override the defaults when doing RTC queries - */ +#define insb insb +#define insw insw +#define insl insl +#define outsb outsb +#define outsw outsw +#define outsl outsl -#ifdef CONFIG_ALPHA_GENERIC -# define RTC_PORT(x) ((x) + alpha_mv.rtc_port) -#else -# ifdef CONFIG_ALPHA_JENSEN -# define RTC_PORT(x) (0x170+(x)) -# else -# define RTC_PORT(x) (0x70 + (x)) -# endif -#endif +#define RTC_PORT(x) (0x70 + (x)) #define RTC_ALWAYS_BCD 0 -/* - * Some mucking forons use if[n]def writeq to check if platform has it. - * It's a bloody bad idea and we probably want ARCH_HAS_WRITEQ for them - * to play with; for now just use cpp anti-recursion logics and make sure - * that damn thing is defined and expands to itself. - */ - -#define writeq writeq -#define readq readq - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p +#define ioread64 ioread64 +#define iowrite64 iowrite64 +#define ioread8_rep ioread8_rep +#define ioread16_rep ioread16_rep +#define ioread32_rep ioread32_rep +#define iowrite8_rep iowrite8_rep +#define iowrite16_rep iowrite16_rep +#define iowrite32_rep iowrite32_rep +#define pci_iounmap pci_iounmap + +#include <asm-generic/io.h> #endif /* __KERNEL__ */ diff --git a/arch/alpha/include/asm/io_trivial.h b/arch/alpha/include/asm/io_trivial.h index 1c77f10b4b36..00032093bcfc 100644 --- a/arch/alpha/include/asm/io_trivial.h +++ b/arch/alpha/include/asm/io_trivial.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* Trivial implementations of basic i/o routines. Assumes that all of the hard work has been done by ioremap and ioportmap, and that access to i/o space is linear. */ @@ -5,16 +6,16 @@ /* This file may be included multiple times. */ #if IO_CONCAT(__IO_PREFIX,trivial_io_bw) -__EXTERN_INLINE unsigned int -IO_CONCAT(__IO_PREFIX,ioread8)(void __iomem *a) +__EXTERN_INLINE u8 +IO_CONCAT(__IO_PREFIX,ioread8)(const void __iomem *a) { - return __kernel_ldbu(*(volatile u8 __force *)a); + return __kernel_ldbu(*(const volatile u8 __force *)a); } -__EXTERN_INLINE unsigned int -IO_CONCAT(__IO_PREFIX,ioread16)(void __iomem *a) +__EXTERN_INLINE u16 +IO_CONCAT(__IO_PREFIX,ioread16)(const void __iomem *a) { - return __kernel_ldwu(*(volatile u16 __force *)a); + return __kernel_ldwu(*(const volatile u16 __force *)a); } __EXTERN_INLINE void @@ -31,10 +32,10 @@ IO_CONCAT(__IO_PREFIX,iowrite16)(u16 b, void __iomem *a) #endif #if IO_CONCAT(__IO_PREFIX,trivial_io_lq) -__EXTERN_INLINE unsigned int -IO_CONCAT(__IO_PREFIX,ioread32)(void __iomem *a) +__EXTERN_INLINE u32 +IO_CONCAT(__IO_PREFIX,ioread32)(const void __iomem *a) { - return *(volatile u32 __force *)a; + return *(const volatile u32 __force *)a; } __EXTERN_INLINE void @@ -42,6 +43,18 @@ IO_CONCAT(__IO_PREFIX,iowrite32)(u32 b, void __iomem *a) { *(volatile u32 __force *)a = b; } + +__EXTERN_INLINE u64 +IO_CONCAT(__IO_PREFIX,ioread64)(const void __iomem *a) +{ + return *(const volatile u64 __force *)a; +} + +__EXTERN_INLINE void +IO_CONCAT(__IO_PREFIX,iowrite64)(u64 b, void __iomem *a) +{ + *(volatile u64 __force *)a = b; +} #endif #if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1 @@ -72,14 +85,14 @@ IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a) __EXTERN_INLINE u8 IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a) { - void __iomem *addr = (void __iomem *)a; + const void __iomem *addr = (const void __iomem *)a; return IO_CONCAT(__IO_PREFIX,ioread8)(addr); } __EXTERN_INLINE u16 IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a) { - void __iomem *addr = (void __iomem *)a; + const void __iomem *addr = (const void __iomem *)a; return IO_CONCAT(__IO_PREFIX,ioread16)(addr); } diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h index 06377400dc09..d83b26b6660f 100644 --- a/arch/alpha/include/asm/irq.h +++ b/arch/alpha/include/asm/irq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_IRQ_H #define _ALPHA_IRQ_H @@ -30,16 +31,11 @@ # define NR_IRQS (32768 + 16) /* marvel - 32 pids */ # endif -#elif defined(CONFIG_ALPHA_CABRIOLET) || \ - defined(CONFIG_ALPHA_EB66P) || \ - defined(CONFIG_ALPHA_EB164) || \ - defined(CONFIG_ALPHA_PC164) || \ +#elif defined(CONFIG_ALPHA_PC164) || \ defined(CONFIG_ALPHA_LX164) # define NR_IRQS 35 -#elif defined(CONFIG_ALPHA_EB66) || \ - defined(CONFIG_ALPHA_EB64P) || \ - defined(CONFIG_ALPHA_MIKASA) +#elif defined(CONFIG_ALPHA_MIKASA) # define NR_IRQS 32 #elif defined(CONFIG_ALPHA_ALCOR) || \ @@ -54,16 +50,15 @@ # define NR_IRQS 40 #elif defined(CONFIG_ALPHA_DP264) || \ - defined(CONFIG_ALPHA_LYNX) || \ - defined(CONFIG_ALPHA_SHARK) || \ - defined(CONFIG_ALPHA_EIGER) + defined(CONFIG_ALPHA_SHARK) # define NR_IRQS 64 #elif defined(CONFIG_ALPHA_TITAN) #define NR_IRQS 80 #elif defined(CONFIG_ALPHA_RAWHIDE) || \ - defined(CONFIG_ALPHA_TAKARA) + defined(CONFIG_ALPHA_TAKARA) || \ + defined(CONFIG_ALPHA_EIGER) # define NR_IRQS 128 #elif defined(CONFIG_ALPHA_WILDFIRE) diff --git a/arch/alpha/include/asm/irq_regs.h b/arch/alpha/include/asm/irq_regs.h deleted file mode 100644 index 3dd9c0b70270..000000000000 --- a/arch/alpha/include/asm/irq_regs.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/irq_regs.h> diff --git a/arch/alpha/include/asm/irqflags.h b/arch/alpha/include/asm/irqflags.h index ffb1726484af..9f25d4e0d37e 100644 --- a/arch/alpha/include/asm/irqflags.h +++ b/arch/alpha/include/asm/irqflags.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_IRQFLAGS_H #define __ALPHA_IRQFLAGS_H diff --git a/arch/alpha/include/asm/jensen.h b/arch/alpha/include/asm/jensen.h deleted file mode 100644 index 964b06ead43b..000000000000 --- a/arch/alpha/include/asm/jensen.h +++ /dev/null @@ -1,346 +0,0 @@ -#ifndef __ALPHA_JENSEN_H -#define __ALPHA_JENSEN_H - -#include <asm/compiler.h> - -/* - * Defines for the AlphaPC EISA IO and memory address space. - */ - -/* - * NOTE! The memory operations do not set any memory barriers, as it's - * not needed for cases like a frame buffer that is essentially memory-like. - * You need to do them by hand if the operations depend on ordering. - * - * Similarly, the port IO operations do a "mb" only after a write operation: - * if an mb is needed before (as in the case of doing memory mapped IO - * first, and then a port IO operation to the same device), it needs to be - * done by hand. - * - * After the above has bitten me 100 times, I'll give up and just do the - * mb all the time, but right now I'm hoping this will work out. Avoiding - * mb's may potentially be a noticeable speed improvement, but I can't - * honestly say I've tested it. - * - * Handling interrupts that need to do mb's to synchronize to non-interrupts - * is another fun race area. Don't do it (because if you do, I'll have to - * do *everything* with interrupts disabled, ugh). - */ - -/* - * EISA Interrupt Acknowledge address - */ -#define EISA_INTA (IDENT_ADDR + 0x100000000UL) - -/* - * FEPROM addresses - */ -#define EISA_FEPROM0 (IDENT_ADDR + 0x180000000UL) -#define EISA_FEPROM1 (IDENT_ADDR + 0x1A0000000UL) - -/* - * VL82C106 base address - */ -#define EISA_VL82C106 (IDENT_ADDR + 0x1C0000000UL) - -/* - * EISA "Host Address Extension" address (bits 25-31 of the EISA address) - */ -#define EISA_HAE (IDENT_ADDR + 0x1D0000000UL) - -/* - * "SYSCTL" register address - */ -#define EISA_SYSCTL (IDENT_ADDR + 0x1E0000000UL) - -/* - * "spare" register address - */ -#define EISA_SPARE (IDENT_ADDR + 0x1F0000000UL) - -/* - * EISA memory address offset - */ -#define EISA_MEM (IDENT_ADDR + 0x200000000UL) - -/* - * EISA IO address offset - */ -#define EISA_IO (IDENT_ADDR + 0x300000000UL) - - -#ifdef __KERNEL__ - -#ifndef __EXTERN_INLINE -#define __EXTERN_INLINE extern inline -#define __IO_EXTERN_INLINE -#endif - -/* - * Handle the "host address register". This needs to be set - * to the high 7 bits of the EISA address. This is also needed - * for EISA IO addresses, which are only 16 bits wide (the - * hae needs to be set to 0). - * - * HAE isn't needed for the local IO operations, though. - */ - -#define JENSEN_HAE_ADDRESS EISA_HAE -#define JENSEN_HAE_MASK 0x1ffffff - -__EXTERN_INLINE void jensen_set_hae(unsigned long addr) -{ - /* hae on the Jensen is bits 31:25 shifted right */ - addr >>= 25; - if (addr != alpha_mv.hae_cache) - set_hae(addr); -} - -#define vuip volatile unsigned int * - -/* - * IO functions - * - * The "local" functions are those that don't go out to the EISA bus, - * but instead act on the VL82C106 chip directly.. This is mainly the - * keyboard, RTC, printer and first two serial lines.. - * - * The local stuff makes for some complications, but it seems to be - * gone in the PCI version. I hope I can get DEC suckered^H^H^H^H^H^H^H^H - * convinced that I need one of the newer machines. - */ - -static inline unsigned int jensen_local_inb(unsigned long addr) -{ - return 0xff & *(vuip)((addr << 9) + EISA_VL82C106); -} - -static inline void jensen_local_outb(u8 b, unsigned long addr) -{ - *(vuip)((addr << 9) + EISA_VL82C106) = b; - mb(); -} - -static inline unsigned int jensen_bus_inb(unsigned long addr) -{ - long result; - - jensen_set_hae(0); - result = *(volatile int *)((addr << 7) + EISA_IO + 0x00); - return __kernel_extbl(result, addr & 3); -} - -static inline void jensen_bus_outb(u8 b, unsigned long addr) -{ - jensen_set_hae(0); - *(vuip)((addr << 7) + EISA_IO + 0x00) = b * 0x01010101; - mb(); -} - -/* - * It seems gcc is not very good at optimizing away logical - * operations that result in operations across inline functions. - * Which is why this is a macro. - */ - -#define jensen_is_local(addr) ( \ -/* keyboard */ (addr == 0x60 || addr == 0x64) || \ -/* RTC */ (addr == 0x170 || addr == 0x171) || \ -/* mb COM2 */ (addr >= 0x2f8 && addr <= 0x2ff) || \ -/* mb LPT1 */ (addr >= 0x3bc && addr <= 0x3be) || \ -/* mb COM2 */ (addr >= 0x3f8 && addr <= 0x3ff)) - -__EXTERN_INLINE u8 jensen_inb(unsigned long addr) -{ - if (jensen_is_local(addr)) - return jensen_local_inb(addr); - else - return jensen_bus_inb(addr); -} - -__EXTERN_INLINE void jensen_outb(u8 b, unsigned long addr) -{ - if (jensen_is_local(addr)) - jensen_local_outb(b, addr); - else - jensen_bus_outb(b, addr); -} - -__EXTERN_INLINE u16 jensen_inw(unsigned long addr) -{ - long result; - - jensen_set_hae(0); - result = *(volatile int *) ((addr << 7) + EISA_IO + 0x20); - result >>= (addr & 3) * 8; - return 0xffffUL & result; -} - -__EXTERN_INLINE u32 jensen_inl(unsigned long addr) -{ - jensen_set_hae(0); - return *(vuip) ((addr << 7) + EISA_IO + 0x60); -} - -__EXTERN_INLINE void jensen_outw(u16 b, unsigned long addr) -{ - jensen_set_hae(0); - *(vuip) ((addr << 7) + EISA_IO + 0x20) = b * 0x00010001; - mb(); -} - -__EXTERN_INLINE void jensen_outl(u32 b, unsigned long addr) -{ - jensen_set_hae(0); - *(vuip) ((addr << 7) + EISA_IO + 0x60) = b; - mb(); -} - -/* - * Memory functions. - */ - -__EXTERN_INLINE u8 jensen_readb(const volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - long result; - - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x00); - result >>= (addr & 3) * 8; - return 0xffUL & result; -} - -__EXTERN_INLINE u16 jensen_readw(const volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - long result; - - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x20); - result >>= (addr & 3) * 8; - return 0xffffUL & result; -} - -__EXTERN_INLINE u32 jensen_readl(const volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - return *(vuip) ((addr << 7) + EISA_MEM + 0x60); -} - -__EXTERN_INLINE u64 jensen_readq(const volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - unsigned long r0, r1; - - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - addr = (addr << 7) + EISA_MEM + 0x60; - r0 = *(vuip) (addr); - r1 = *(vuip) (addr + (4 << 7)); - return r1 << 32 | r0; -} - -__EXTERN_INLINE void jensen_writeb(u8 b, volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - *(vuip) ((addr << 7) + EISA_MEM + 0x00) = b * 0x01010101; -} - -__EXTERN_INLINE void jensen_writew(u16 b, volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - *(vuip) ((addr << 7) + EISA_MEM + 0x20) = b * 0x00010001; -} - -__EXTERN_INLINE void jensen_writel(u32 b, volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - *(vuip) ((addr << 7) + EISA_MEM + 0x60) = b; -} - -__EXTERN_INLINE void jensen_writeq(u64 b, volatile void __iomem *xaddr) -{ - unsigned long addr = (unsigned long) xaddr; - jensen_set_hae(addr); - addr &= JENSEN_HAE_MASK; - addr = (addr << 7) + EISA_MEM + 0x60; - *(vuip) (addr) = b; - *(vuip) (addr + (4 << 7)) = b >> 32; -} - -__EXTERN_INLINE void __iomem *jensen_ioportmap(unsigned long addr) -{ - return (void __iomem *)addr; -} - -__EXTERN_INLINE void __iomem *jensen_ioremap(unsigned long addr, - unsigned long size) -{ - return (void __iomem *)(addr + 0x100000000ul); -} - -__EXTERN_INLINE int jensen_is_ioaddr(unsigned long addr) -{ - return (long)addr >= 0; -} - -__EXTERN_INLINE int jensen_is_mmio(const volatile void __iomem *addr) -{ - return (unsigned long)addr >= 0x100000000ul; -} - -/* New-style ioread interface. All the routines are so ugly for Jensen - that it doesn't make sense to merge them. */ - -#define IOPORT(OS, NS) \ -__EXTERN_INLINE unsigned int jensen_ioread##NS(void __iomem *xaddr) \ -{ \ - if (jensen_is_mmio(xaddr)) \ - return jensen_read##OS(xaddr - 0x100000000ul); \ - else \ - return jensen_in##OS((unsigned long)xaddr); \ -} \ -__EXTERN_INLINE void jensen_iowrite##NS(u##NS b, void __iomem *xaddr) \ -{ \ - if (jensen_is_mmio(xaddr)) \ - jensen_write##OS(b, xaddr - 0x100000000ul); \ - else \ - jensen_out##OS(b, (unsigned long)xaddr); \ -} - -IOPORT(b, 8) -IOPORT(w, 16) -IOPORT(l, 32) - -#undef IOPORT - -#undef vuip - -#undef __IO_PREFIX -#define __IO_PREFIX jensen -#define jensen_trivial_rw_bw 0 -#define jensen_trivial_rw_lq 0 -#define jensen_trivial_io_bw 0 -#define jensen_trivial_io_lq 0 -#define jensen_trivial_iounmap 1 -#include <asm/io_trivial.h> - -#ifdef __IO_EXTERN_INLINE -#undef __EXTERN_INLINE -#undef __IO_EXTERN_INLINE -#endif - -#endif /* __KERNEL__ */ - -#endif /* __ALPHA_JENSEN_H */ diff --git a/arch/alpha/include/asm/kdebug.h b/arch/alpha/include/asm/kdebug.h deleted file mode 100644 index 6ece1b037665..000000000000 --- a/arch/alpha/include/asm/kdebug.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/kdebug.h> diff --git a/arch/alpha/include/asm/kmap_types.h b/arch/alpha/include/asm/kmap_types.h deleted file mode 100644 index a8d4ec8ea4b6..000000000000 --- a/arch/alpha/include/asm/kmap_types.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef _ASM_KMAP_TYPES_H -#define _ASM_KMAP_TYPES_H - -/* Dummy header just to define km_type. */ - -#ifdef CONFIG_DEBUG_HIGHMEM -#define __WITH_KM_FENCE -#endif - -#include <asm-generic/kmap_types.h> - -#undef __WITH_KM_FENCE - -#endif diff --git a/arch/alpha/include/asm/linkage.h b/arch/alpha/include/asm/linkage.h index 7cfd06e8c935..aa8661fa60dc 100644 --- a/arch/alpha/include/asm/linkage.h +++ b/arch/alpha/include/asm/linkage.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_LINKAGE_H #define __ASM_LINKAGE_H diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h index 9c94b8456043..88eb398947a5 100644 --- a/arch/alpha/include/asm/local.h +++ b/arch/alpha/include/asm/local.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_LOCAL_H #define _ALPHA_LOCAL_H @@ -51,33 +52,40 @@ static __inline__ long local_sub_return(long i, local_t * l) return result; } -#define local_cmpxchg(l, o, n) \ - (cmpxchg_local(&((l)->a.counter), (o), (n))) +static __inline__ long local_cmpxchg(local_t *l, long old, long new) +{ + return cmpxchg_local(&l->a.counter, old, new); +} + +static __inline__ bool local_try_cmpxchg(local_t *l, long *old, long new) +{ + return try_cmpxchg_local(&l->a.counter, (s64 *)old, new); +} + #define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n))) /** - * local_add_unless - add unless the number is a given value + * local_add_unless - add unless the number is already a given value * @l: pointer of type local_t * @a: the amount to add to l... * @u: ...unless l is equal to u. * - * Atomically adds @a to @l, so long as it was not @u. - * Returns non-zero if @l was not @u, and zero otherwise. + * Atomically adds @a to @l, if @v was not already @u. + * Returns true if the addition was done. */ -#define local_add_unless(l, a, u) \ -({ \ - long c, old; \ - c = local_read(l); \ - for (;;) { \ - if (unlikely(c == (u))) \ - break; \ - old = local_cmpxchg((l), c, c + (a)); \ - if (likely(old == c)) \ - break; \ - c = old; \ - } \ - c != (u); \ -}) +static __inline__ bool +local_add_unless(local_t *l, long a, long u) +{ + long c = local_read(l); + + do { + if (unlikely(c == u)) + return false; + } while (!local_try_cmpxchg(l, &c, c + a)); + + return true; +} + #define local_inc_not_zero(l) local_add_unless((l), 1, 0) #define local_add_negative(a, l) (local_add_return((a), (l)) < 0) diff --git a/arch/alpha/include/asm/local64.h b/arch/alpha/include/asm/local64.h deleted file mode 100644 index 36c93b5cc239..000000000000 --- a/arch/alpha/include/asm/local64.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/local64.h> diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h index 72dbf2359270..490fc880bb3f 100644 --- a/arch/alpha/include/asm/machvec.h +++ b/arch/alpha/include/asm/machvec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_MACHVEC_H #define __ALPHA_MACHVEC_H 1 @@ -33,6 +34,7 @@ struct alpha_machine_vector int nr_irqs; int rtc_port; + int rtc_boot_cpu_only; unsigned int max_asn; unsigned long max_isa_dma_address; unsigned long irq_probe_mask; @@ -44,13 +46,15 @@ struct alpha_machine_vector void (*mv_pci_tbi)(struct pci_controller *hose, dma_addr_t start, dma_addr_t end); - unsigned int (*mv_ioread8)(void __iomem *); - unsigned int (*mv_ioread16)(void __iomem *); - unsigned int (*mv_ioread32)(void __iomem *); + u8 (*mv_ioread8)(const void __iomem *); + u16 (*mv_ioread16)(const void __iomem *); + u32 (*mv_ioread32)(const void __iomem *); + u64 (*mv_ioread64)(const void __iomem *); void (*mv_iowrite8)(u8, void __iomem *); void (*mv_iowrite16)(u16, void __iomem *); void (*mv_iowrite32)(u32, void __iomem *); + void (*mv_iowrite64)(u64, void __iomem *); u8 (*mv_readb)(const volatile void __iomem *); u16 (*mv_readw)(const volatile void __iomem *); @@ -68,15 +72,6 @@ struct alpha_machine_vector int (*mv_is_ioaddr)(unsigned long); int (*mv_is_mmio)(const volatile void __iomem *); - void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *, - struct task_struct *); - void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *); - - void (*mv_flush_tlb_current)(struct mm_struct *); - void (*mv_flush_tlb_current_page)(struct mm_struct * mm, - struct vm_area_struct *vma, - unsigned long addr); - void (*update_irq_hw)(unsigned long, unsigned long, int); void (*ack_irq)(unsigned long); void (*device_interrupt)(unsigned long vector); @@ -95,17 +90,8 @@ struct alpha_machine_vector struct _alpha_agp_info *(*agp_info)(void); - unsigned int (*rtc_get_time)(struct rtc_time *); - int (*rtc_set_time)(struct rtc_time *); - const char *vector_name; - /* NUMA information */ - int (*pa_to_nid)(unsigned long); - int (*cpuid_to_nid)(int); - unsigned long (*node_mem_start)(int); - unsigned long (*node_mem_size)(int); - /* System specific parameters. */ union { struct { @@ -126,13 +112,19 @@ extern struct alpha_machine_vector alpha_mv; #ifdef CONFIG_ALPHA_GENERIC extern int alpha_using_srm; +extern int alpha_using_qemu; #else -#ifdef CONFIG_ALPHA_SRM -#define alpha_using_srm 1 -#else -#define alpha_using_srm 0 -#endif +# ifdef CONFIG_ALPHA_SRM +# define alpha_using_srm 1 +# else +# define alpha_using_srm 0 +# endif +# ifdef CONFIG_ALPHA_QEMU +# define alpha_using_qemu 1 +# else +# define alpha_using_qemu 0 +# endif #endif /* GENERIC */ -#endif +#endif /* __KERNEL__ */ #endif /* __ALPHA_MACHVEC_H */ diff --git a/arch/alpha/include/asm/mc146818rtc.h b/arch/alpha/include/asm/mc146818rtc.h index 097703f1c8cb..2154fd4f7857 100644 --- a/arch/alpha/include/asm/mc146818rtc.h +++ b/arch/alpha/include/asm/mc146818rtc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Machine dependent access functions for RTC registers. */ diff --git a/arch/alpha/include/asm/mce.h b/arch/alpha/include/asm/mce.h index 660285b9aca8..200e04e98a2f 100644 --- a/arch/alpha/include/asm/mce.h +++ b/arch/alpha/include/asm/mce.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_MCE_H #define __ALPHA_MCE_H diff --git a/arch/alpha/include/asm/mmu.h b/arch/alpha/include/asm/mmu.h index 3dc127779329..dadfc1b6e3e7 100644 --- a/arch/alpha/include/asm/mmu.h +++ b/arch/alpha/include/asm/mmu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_MMU_H #define __ALPHA_MMU_H diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h index 4c51c05333c6..eee8fe836a59 100644 --- a/arch/alpha/include/asm/mmu_context.h +++ b/arch/alpha/include/asm/mmu_context.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_MMU_CONTEXT_H #define __ALPHA_MMU_CONTEXT_H @@ -7,6 +8,9 @@ * Copyright (C) 1996, Linus Torvalds */ +#include <linux/mm_types.h> +#include <linux/sched.h> + #include <asm/machvec.h> #include <asm/compiler.h> #include <asm-generic/mm_hooks.h> @@ -67,9 +71,7 @@ __reload_thread(struct pcb_struct *pcb) #ifdef CONFIG_ALPHA_GENERIC # define MAX_ASN (alpha_mv.max_asn) #else -# ifdef CONFIG_ALPHA_EV4 -# define MAX_ASN EV4_MAX_ASN -# elif defined(CONFIG_ALPHA_EV5) +# if defined(CONFIG_ALPHA_EV56) # define MAX_ASN EV5_MAX_ASN # else # define MAX_ASN EV6_MAX_ASN @@ -158,27 +160,9 @@ ev5_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm, task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK; } -__EXTERN_INLINE void -ev4_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm, - struct task_struct *next) -{ - /* As described, ASN's are broken for TLB usage. But we can - optimize for switching between threads -- if the mm is - unchanged from current we needn't flush. */ - /* ??? May not be needed because EV4 PALcode recognizes that - ASN's are broken and does a tbiap itself on swpctx, under - the "Must set ASN or flush" rule. At least this is true - for a 1992 SRM, reports Joseph Martin (jmartin@hlo.dec.com). - I'm going to leave this here anyway, just to Be Sure. -- r~ */ - if (prev_mm != next_mm) - tbiap(); - - /* Do continue to allocate ASNs, because we can still use them - to avoid flushing the icache. */ - ev5_switch_mm(prev_mm, next_mm, next); -} - extern void __load_new_mm_context(struct mm_struct *); +asmlinkage void do_page_fault(unsigned long address, unsigned long mmcsr, + long cause, struct pt_regs *regs); #ifdef CONFIG_SMP #define check_mmu_context() \ @@ -203,28 +187,10 @@ ev5_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm) __load_new_mm_context(next_mm); } -__EXTERN_INLINE void -ev4_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm) -{ - __load_new_mm_context(next_mm); - tbiap(); -} - -#define deactivate_mm(tsk,mm) do { } while (0) - -#ifdef CONFIG_ALPHA_GENERIC -# define switch_mm(a,b,c) alpha_mv.mv_switch_mm((a),(b),(c)) -# define activate_mm(x,y) alpha_mv.mv_activate_mm((x),(y)) -#else -# ifdef CONFIG_ALPHA_EV4 -# define switch_mm(a,b,c) ev4_switch_mm((a),(b),(c)) -# define activate_mm(x,y) ev4_activate_mm((x),(y)) -# else -# define switch_mm(a,b,c) ev5_switch_mm((a),(b),(c)) -# define activate_mm(x,y) ev5_activate_mm((x),(y)) -# endif -#endif +#define switch_mm(a,b,c) ev5_switch_mm((a),(b),(c)) +#define activate_mm(x,y) ev5_activate_mm((x),(y)) +#define init_new_context init_new_context static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { @@ -238,12 +204,7 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm) return 0; } -extern inline void -destroy_context(struct mm_struct *mm) -{ - /* Nothing to do. */ -} - +#define enter_lazy_tlb enter_lazy_tlb static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { @@ -251,6 +212,8 @@ enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT; } +#include <asm-generic/mmu_context.h> + #ifdef __MMU_EXTERN_INLINE #undef __EXTERN_INLINE #undef __MMU_EXTERN_INLINE diff --git a/arch/alpha/include/asm/mmzone.h b/arch/alpha/include/asm/mmzone.h deleted file mode 100644 index 14ce27bccd24..000000000000 --- a/arch/alpha/include/asm/mmzone.h +++ /dev/null @@ -1,112 +0,0 @@ -/* - * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99 - * Adapted for the alpha wildfire architecture Jan 2001. - */ -#ifndef _ASM_MMZONE_H_ -#define _ASM_MMZONE_H_ - -#include <asm/smp.h> - -struct bootmem_data_t; /* stupid forward decl. */ - -/* - * Following are macros that are specific to this numa platform. - */ - -extern pg_data_t node_data[]; - -#define alpha_pa_to_nid(pa) \ - (alpha_mv.pa_to_nid \ - ? alpha_mv.pa_to_nid(pa) \ - : (0)) -#define node_mem_start(nid) \ - (alpha_mv.node_mem_start \ - ? alpha_mv.node_mem_start(nid) \ - : (0UL)) -#define node_mem_size(nid) \ - (alpha_mv.node_mem_size \ - ? alpha_mv.node_mem_size(nid) \ - : ((nid) ? (0UL) : (~0UL))) - -#define pa_to_nid(pa) alpha_pa_to_nid(pa) -#define NODE_DATA(nid) (&node_data[(nid)]) - -#define node_localnr(pfn, nid) ((pfn) - NODE_DATA(nid)->node_start_pfn) - -#if 1 -#define PLAT_NODE_DATA_LOCALNR(p, n) \ - (((p) >> PAGE_SHIFT) - PLAT_NODE_DATA(n)->gendata.node_start_pfn) -#else -static inline unsigned long -PLAT_NODE_DATA_LOCALNR(unsigned long p, int n) -{ - unsigned long temp; - temp = p >> PAGE_SHIFT; - return temp - PLAT_NODE_DATA(n)->gendata.node_start_pfn; -} -#endif - -#ifdef CONFIG_DISCONTIGMEM - -/* - * Following are macros that each numa implementation must define. - */ - -/* - * Given a kernel address, find the home node of the underlying memory. - */ -#define kvaddr_to_nid(kaddr) pa_to_nid(__pa(kaddr)) - -/* - * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory - * and returns the kaddr corresponding to first physical page in the - * node's mem_map. - */ -#define LOCAL_BASE_ADDR(kaddr) \ - ((unsigned long)__va(NODE_DATA(kvaddr_to_nid(kaddr))->node_start_pfn \ - << PAGE_SHIFT)) - -/* XXX: FIXME -- nyc */ -#define kern_addr_valid(kaddr) (0) - -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) - -#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32)) -#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> 32)) -#define pte_pfn(pte) (pte_val(pte) >> 32) - -#define mk_pte(page, pgprot) \ -({ \ - pte_t pte; \ - unsigned long pfn; \ - \ - pfn = page_to_pfn(page) << 32; \ - pte_val(pte) = pfn | pgprot_val(pgprot); \ - \ - pte; \ -}) - -#define pte_page(x) \ -({ \ - unsigned long kvirt; \ - struct page * __xx; \ - \ - kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT)); \ - __xx = virt_to_page(kvirt); \ - \ - __xx; \ -}) - -#define page_to_pa(page) \ - (page_to_pfn(page) << PAGE_SHIFT) - -#define pfn_to_nid(pfn) pa_to_nid(((u64)(pfn) << PAGE_SHIFT)) -#define pfn_valid(pfn) \ - (((pfn) - node_start_pfn(pfn_to_nid(pfn))) < \ - node_spanned_pages(pfn_to_nid(pfn))) \ - -#define virt_addr_valid(kaddr) pfn_valid((__pa(kaddr) >> PAGE_SHIFT)) - -#endif /* CONFIG_DISCONTIGMEM */ - -#endif /* _ASM_MMZONE_H_ */ diff --git a/arch/alpha/include/asm/module.h b/arch/alpha/include/asm/module.h index 9cd13b55155f..1e96e42f5d54 100644 --- a/arch/alpha/include/asm/module.h +++ b/arch/alpha/include/asm/module.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_MODULE_H #define _ALPHA_MODULE_H diff --git a/arch/alpha/include/asm/mutex.h b/arch/alpha/include/asm/mutex.h deleted file mode 100644 index 458c1f7fbc18..000000000000 --- a/arch/alpha/include/asm/mutex.h +++ /dev/null @@ -1,9 +0,0 @@ -/* - * Pull in the generic implementation for the mutex fastpath. - * - * TODO: implement optimized primitives instead, or leave the generic - * implementation in place, or pick the atomic_xchg() based generic - * implementation. (see asm-generic/mutex-xchg.h for details) - */ - -#include <asm-generic/mutex-dec.h> diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h index 07af062544fb..5ec4c77e432e 100644 --- a/arch/alpha/include/asm/page.h +++ b/arch/alpha/include/asm/page.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_PAGE_H #define _ALPHA_PAGE_H #include <linux/const.h> #include <asm/pal.h> - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 13 -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) +#include <vdso/page.h> #ifndef __ASSEMBLY__ @@ -16,9 +13,8 @@ extern void clear_page(void *page); #define clear_user_page(page, vaddr, pg) clear_page(page) -#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ - alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vmaddr) -#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE +#define vma_alloc_zeroed_movable_folio(vma, vaddr) \ + vma_alloc_folio(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, 0, vma, vaddr) extern void copy_page(void * _to, void * _from); #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) @@ -82,15 +78,9 @@ typedef struct page *pgtable_t; #define __pa(x) ((unsigned long) (x) - PAGE_OFFSET) #define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) -#ifndef CONFIG_DISCONTIGMEM -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) -#endif /* CONFIG_DISCONTIGMEM */ - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) +#define virt_addr_valid(kaddr) pfn_valid((__pa(kaddr) >> PAGE_SHIFT)) #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> diff --git a/arch/alpha/include/asm/pal.h b/arch/alpha/include/asm/pal.h index 6fcd2b5b08f0..db2b3b18b34c 100644 --- a/arch/alpha/include/asm/pal.h +++ b/arch/alpha/include/asm/pal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_PAL_H #define __ALPHA_PAL_H @@ -89,6 +90,7 @@ __CALL_PAL_W1(wrmces, unsigned long); __CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long); __CALL_PAL_W1(wrusp, unsigned long); __CALL_PAL_W1(wrvptptr, unsigned long); +__CALL_PAL_RW1(wtint, unsigned long, unsigned long); /* * TB routines.. @@ -111,5 +113,75 @@ __CALL_PAL_W1(wrvptptr, unsigned long); #define tbiap() __tbi(-1, /* no second argument */) #define tbia() __tbi(-2, /* no second argument */) +/* + * QEMU Cserv routines.. + */ + +static inline unsigned long +qemu_get_walltime(void) +{ + register unsigned long v0 __asm__("$0"); + register unsigned long a0 __asm__("$16") = 3; + + asm("call_pal %2 # cserve get_time" + : "=r"(v0), "+r"(a0) + : "i"(PAL_cserve) + : "$17", "$18", "$19", "$20", "$21"); + + return v0; +} + +static inline unsigned long +qemu_get_alarm(void) +{ + register unsigned long v0 __asm__("$0"); + register unsigned long a0 __asm__("$16") = 4; + + asm("call_pal %2 # cserve get_alarm" + : "=r"(v0), "+r"(a0) + : "i"(PAL_cserve) + : "$17", "$18", "$19", "$20", "$21"); + + return v0; +} + +static inline void +qemu_set_alarm_rel(unsigned long expire) +{ + register unsigned long a0 __asm__("$16") = 5; + register unsigned long a1 __asm__("$17") = expire; + + asm volatile("call_pal %2 # cserve set_alarm_rel" + : "+r"(a0), "+r"(a1) + : "i"(PAL_cserve) + : "$0", "$18", "$19", "$20", "$21"); +} + +static inline void +qemu_set_alarm_abs(unsigned long expire) +{ + register unsigned long a0 __asm__("$16") = 6; + register unsigned long a1 __asm__("$17") = expire; + + asm volatile("call_pal %2 # cserve set_alarm_abs" + : "+r"(a0), "+r"(a1) + : "i"(PAL_cserve) + : "$0", "$18", "$19", "$20", "$21"); +} + +static inline unsigned long +qemu_get_vmtime(void) +{ + register unsigned long v0 __asm__("$0"); + register unsigned long a0 __asm__("$16") = 7; + + asm("call_pal %2 # cserve get_time" + : "=r"(v0), "+r"(a0) + : "i"(PAL_cserve) + : "$17", "$18", "$19", "$20", "$21"); + + return v0; +} + #endif /* !__ASSEMBLY__ */ #endif /* __ALPHA_PAL_H */ diff --git a/arch/alpha/include/asm/param.h b/arch/alpha/include/asm/param.h deleted file mode 100644 index bf46af51941b..000000000000 --- a/arch/alpha/include/asm/param.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef _ASM_ALPHA_PARAM_H -#define _ASM_ALPHA_PARAM_H - -#include <uapi/asm/param.h> - -#define HZ CONFIG_HZ -#define USER_HZ HZ -# define CLOCKS_PER_SEC HZ /* frequency at which times() counts */ -#endif /* _ASM_ALPHA_PARAM_H */ diff --git a/arch/alpha/include/asm/parport.h b/arch/alpha/include/asm/parport.h index 6abd0af11f13..0519a51e61f8 100644 --- a/arch/alpha/include/asm/parport.h +++ b/arch/alpha/include/asm/parport.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * parport.h: platform-specific PC-style parport initialisation * diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h index d01afb78919c..6c04fcbdc8ed 100644 --- a/arch/alpha/include/asm/pci.h +++ b/arch/alpha/include/asm/pci.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_PCI_H #define __ALPHA_PCI_H @@ -5,17 +6,13 @@ #include <linux/spinlock.h> #include <linux/dma-mapping.h> -#include <asm/scatterlist.h> +#include <linux/scatterlist.h> #include <asm/machvec.h> -#include <asm-generic/pci-bridge.h> /* * The following structure is used to manage multiple PCI busses. */ -struct pci_dev; -struct pci_bus; -struct resource; struct pci_iommu_arena; struct page; @@ -57,49 +54,8 @@ struct pci_controller { #define PCIBIOS_MIN_IO alpha_mv.min_io_address #define PCIBIOS_MIN_MEM alpha_mv.min_mem_address -extern void pcibios_set_master(struct pci_dev *dev); - -extern inline void pcibios_penalize_isa_irq(int irq, int active) -{ - /* We don't do dynamic PCI IRQ allocation */ -} - /* IOMMU controls. */ -/* The PCI address space does not equal the physical memory address space. - The networking and block device layers use this boolean for bounce buffer - decisions. */ -#define PCI_DMA_BUS_IS_PHYS 0 - -#ifdef CONFIG_PCI - -/* implement the pci_ DMA API in terms of the generic device dma_ one */ -#include <asm-generic/pci-dma-compat.h> - -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - unsigned long cacheline_size; - u8 byte; - - pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); - if (byte == 0) - cacheline_size = 1024; - else - cacheline_size = (int) byte * 4; - - *strat = PCI_DMA_BURST_BOUNDARY; - *strategy_parameter = cacheline_size; -} -#endif - -/* TODO: integrate with include/asm-generic/pci.h ? */ -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - return channel ? 15 : 14; -} - #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index static inline int pci_proc_domain(struct pci_bus *bus) @@ -132,7 +88,4 @@ extern void pci_adjust_legacy_attr(struct pci_bus *bus, enum pci_mmap_state mmap_type); #define HAVE_PCI_LEGACY 1 -extern int pci_create_resource_files(struct pci_dev *dev); -extern void pci_remove_resource_files(struct pci_dev *dev); - #endif /* __ALPHA_PCI_H */ diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percpu.h index 2c12378e3aa9..4383d66341dc 100644 --- a/arch/alpha/include/asm/percpu.h +++ b/arch/alpha/include/asm/percpu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_PERCPU_H #define __ALPHA_PERCPU_H @@ -8,10 +9,9 @@ * way above 4G. * * Always use weak definitions for percpu variables in modules. + * Therefore, we have enabled CONFIG_ARCH_MODULE_NEEDS_WEAK_PER_CPU + * in the Kconfig. */ -#if defined(MODULE) && defined(CONFIG_SMP) -#define ARCH_NEEDS_WEAK_PER_CPU -#endif #include <asm-generic/percpu.h> diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h index bc2a0daf2d92..68be7adbfe58 100644 --- a/arch/alpha/include/asm/pgalloc.h +++ b/arch/alpha/include/asm/pgalloc.h @@ -1,9 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_PGALLOC_H #define _ALPHA_PGALLOC_H #include <linux/mm.h> #include <linux/mmzone.h> +#include <asm-generic/pgalloc.h> + /* * Allocate and free page tables. The xxx_kernel() versions are * used to allocate a kernel page table - this turns on ASN bits @@ -15,7 +18,6 @@ pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte) { pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET)); } -#define pmd_pgtable(pmd) pmd_page(pmd) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) @@ -24,65 +26,11 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) } static inline void -pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) +pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) { - pgd_set(pgd, pmd); + pud_set(pud, pmd); } extern pgd_t *pgd_alloc(struct mm_struct *mm); -static inline void -pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - free_page((unsigned long)pgd); -} - -static inline pmd_t * -pmd_alloc_one(struct mm_struct *mm, unsigned long address) -{ - pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - return ret; -} - -static inline void -pmd_free(struct mm_struct *mm, pmd_t *pmd) -{ - free_page((unsigned long)pmd); -} - -static inline pte_t * -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - return pte; -} - -static inline void -pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline pgtable_t -pte_alloc_one(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte = pte_alloc_one_kernel(mm, address); - struct page *page; - - if (!pte) - return NULL; - page = virt_to_page(pte); - pgtable_page_ctor(page); - return page; -} - -static inline void -pte_free(struct mm_struct *mm, pgtable_t page) -{ - pgtable_page_dtor(page); - __free_page(page); -} - -#define check_pgt_cache() do { } while (0) - #endif /* _ALPHA_PGALLOC_H */ diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h index d8f9b7e89234..90e7a9539102 100644 --- a/arch/alpha/include/asm/pgtable.h +++ b/arch/alpha/include/asm/pgtable.h @@ -1,7 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_PGTABLE_H #define _ALPHA_PGTABLE_H -#include <asm-generic/4level-fixup.h> +#include <asm-generic/pgtable-nopud.h> /* * This file contains the functions and defines necessary to modify and use @@ -25,7 +26,6 @@ struct vm_area_struct; * hook is made available. */ #define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval)) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) /* PMD_SHIFT determines the size of the area a second-level page table can map */ #define PMD_SHIFT (PAGE_SHIFT + (PAGE_SHIFT-3)) @@ -45,7 +45,6 @@ struct vm_area_struct; #define PTRS_PER_PMD (1UL << (PAGE_SHIFT-3)) #define PTRS_PER_PGD (1UL << (PAGE_SHIFT-3)) #define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) -#define FIRST_USER_ADDRESS 0 /* Number of pointers that fit on a page: this will go away. */ #define PTRS_PER_PAGE (1UL << (PAGE_SHIFT-3)) @@ -73,7 +72,9 @@ struct vm_area_struct; /* .. and these are ours ... */ #define _PAGE_DIRTY 0x20000 #define _PAGE_ACCESSED 0x40000 -#define _PAGE_FILE 0x80000 /* set:pagecache, unset:swap */ + +/* We borrow bit 39 to store the exclusive marker in swap PTEs. */ +#define _PAGE_SWP_EXCLUSIVE 0x8000000000UL /* * NOTE! The "accessed" bit isn't necessarily exact: it can be kept exactly @@ -106,7 +107,7 @@ struct vm_area_struct; #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x)) -#define _PAGE_P(x) _PAGE_NORMAL((x) | (((x) & _PAGE_FOW)?0:_PAGE_FOW)) +#define _PAGE_P(x) _PAGE_NORMAL((x) | _PAGE_FOW) #define _PAGE_S(x) _PAGE_NORMAL(x) /* @@ -117,23 +118,6 @@ struct vm_area_struct; * arch/alpha/mm/fault.c) */ /* xwr */ -#define __P000 _PAGE_P(_PAGE_FOE | _PAGE_FOW | _PAGE_FOR) -#define __P001 _PAGE_P(_PAGE_FOE | _PAGE_FOW) -#define __P010 _PAGE_P(_PAGE_FOE) -#define __P011 _PAGE_P(_PAGE_FOE) -#define __P100 _PAGE_P(_PAGE_FOW | _PAGE_FOR) -#define __P101 _PAGE_P(_PAGE_FOW) -#define __P110 _PAGE_P(0) -#define __P111 _PAGE_P(0) - -#define __S000 _PAGE_S(_PAGE_FOE | _PAGE_FOW | _PAGE_FOR) -#define __S001 _PAGE_S(_PAGE_FOE | _PAGE_FOW) -#define __S010 _PAGE_S(_PAGE_FOE) -#define __S011 _PAGE_S(_PAGE_FOE) -#define __S100 _PAGE_S(_PAGE_FOW | _PAGE_FOR) -#define __S101 _PAGE_S(_PAGE_FOW) -#define __S110 _PAGE_S(0) -#define __S111 _PAGE_S(0) /* * pgprot_noncached() is only for infiniband pci support, and a real @@ -142,34 +126,11 @@ struct vm_area_struct; #define pgprot_noncached(prot) (prot) /* - * BAD_PAGETABLE is used when we need a bogus page-table, while - * BAD_PAGE is used for a bogus page. - * * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. */ -extern pte_t __bad_page(void); -extern pmd_t * __bad_pagetable(void); - -extern unsigned long __zero_page(void); - -#define BAD_PAGETABLE __bad_pagetable() -#define BAD_PAGE __bad_page() #define ZERO_PAGE(vaddr) (virt_to_page(ZERO_PGE)) -/* number of bits that fit into a memory pointer */ -#define BITS_PER_PTR (8*sizeof(unsigned long)) - -/* to align the pointer to a pointer address */ -#define PTR_MASK (~(sizeof(void*)-1)) - -/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */ -#define SIZEOF_PTR_LOG2 3 - -/* to find an entry in a page-table */ -#define PAGE_PTR(address) \ - ((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK) - /* * On certain platforms whose physical address space can overlap KSEG, * namely EV6 and above, we must re-twiddle the physaddr to restore the @@ -203,19 +164,11 @@ extern unsigned long __zero_page(void); * Conversion functions: convert a page and protection to a page entry, * and a page entry and page directory to the page they refer to. */ -#ifndef CONFIG_DISCONTIGMEM -#define page_to_pa(page) (((page) - mem_map) << PAGE_SHIFT) +#define page_to_pa(page) (page_to_pfn(page) << PAGE_SHIFT) +#define PFN_PTE_SHIFT 32 +#define pte_pfn(pte) (pte_val(pte) >> PFN_PTE_SHIFT) -#define pte_pfn(pte) (pte_val(pte) >> 32) #define pte_page(pte) pfn_to_page(pte_pfn(pte)) -#define mk_pte(page, pgprot) \ -({ \ - pte_t pte; \ - \ - pte_val(pte) = (page_to_pfn(page) << 32) | pgprot_val(pgprot); \ - pte; \ -}) -#endif extern inline pte_t pfn_pte(unsigned long physpfn, pgprot_t pgprot) { pte_t pte; pte_val(pte) = (PHYS_TWIDDLE(physpfn) << 32) | pgprot_val(pgprot); return pte; } @@ -226,8 +179,8 @@ extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot) extern inline void pmd_set(pmd_t * pmdp, pte_t * ptep) { pmd_val(*pmdp) = _PAGE_TABLE | ((((unsigned long) ptep) - PAGE_OFFSET) << (32-PAGE_SHIFT)); } -extern inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp) -{ pgd_val(*pgdp) = _PAGE_TABLE | ((((unsigned long) pmdp) - PAGE_OFFSET) << (32-PAGE_SHIFT)); } +extern inline void pud_set(pud_t * pudp, pmd_t * pmdp) +{ pud_val(*pudp) = _PAGE_TABLE | ((((unsigned long) pmdp) - PAGE_OFFSET) << (32-PAGE_SHIFT)); } extern inline unsigned long @@ -236,13 +189,14 @@ pmd_page_vaddr(pmd_t pmd) return ((pmd_val(pmd) & _PFN_MASK) >> (32-PAGE_SHIFT)) + PAGE_OFFSET; } -#ifndef CONFIG_DISCONTIGMEM -#define pmd_page(pmd) (mem_map + ((pmd_val(pmd) & _PFN_MASK) >> 32)) -#define pgd_page(pgd) (mem_map + ((pgd_val(pgd) & _PFN_MASK) >> 32)) -#endif +#define pmd_pfn(pmd) (pmd_val(pmd) >> 32) +#define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32)) +#define pud_page(pud) (pfn_to_page(pud_val(pud) >> 32)) -extern inline unsigned long pgd_page_vaddr(pgd_t pgd) -{ return PAGE_OFFSET + ((pgd_val(pgd) & _PFN_MASK) >> (32-PAGE_SHIFT)); } +extern inline pmd_t *pud_pgtable(pud_t pgd) +{ + return (pmd_t *)(PAGE_OFFSET + ((pud_val(pgd) & _PFN_MASK) >> (32-PAGE_SHIFT))); +} extern inline int pte_none(pte_t pte) { return !pte_val(pte); } extern inline int pte_present(pte_t pte) { return pte_val(pte) & _PAGE_VALID; } @@ -256,10 +210,10 @@ extern inline int pmd_bad(pmd_t pmd) { return (pmd_val(pmd) & ~_PFN_MASK) != _P extern inline int pmd_present(pmd_t pmd) { return pmd_val(pmd) & _PAGE_VALID; } extern inline void pmd_clear(pmd_t * pmdp) { pmd_val(*pmdp) = 0; } -extern inline int pgd_none(pgd_t pgd) { return !pgd_val(pgd); } -extern inline int pgd_bad(pgd_t pgd) { return (pgd_val(pgd) & ~_PFN_MASK) != _PAGE_TABLE; } -extern inline int pgd_present(pgd_t pgd) { return pgd_val(pgd) & _PAGE_VALID; } -extern inline void pgd_clear(pgd_t * pgdp) { pgd_val(*pgdp) = 0; } +extern inline int pud_none(pud_t pud) { return !pud_val(pud); } +extern inline int pud_bad(pud_t pud) { return (pud_val(pud) & ~_PFN_MASK) != _PAGE_TABLE; } +extern inline int pud_present(pud_t pud) { return pud_val(pud) & _PAGE_VALID; } +extern inline void pud_clear(pud_t * pudp) { pud_val(*pudp) = 0; } /* * The following only work if pte_present() is true. @@ -268,30 +222,18 @@ extern inline void pgd_clear(pgd_t * pgdp) { pgd_val(*pgdp) = 0; } extern inline int pte_write(pte_t pte) { return !(pte_val(pte) & _PAGE_FOW); } extern inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } extern inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } -extern inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; } -extern inline int pte_special(pte_t pte) { return 0; } extern inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) |= _PAGE_FOW; return pte; } extern inline pte_t pte_mkclean(pte_t pte) { pte_val(pte) &= ~(__DIRTY_BITS); return pte; } extern inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~(__ACCESS_BITS); return pte; } -extern inline pte_t pte_mkwrite(pte_t pte) { pte_val(pte) &= ~_PAGE_FOW; return pte; } +extern inline pte_t pte_mkwrite_novma(pte_t pte){ pte_val(pte) &= ~_PAGE_FOW; return pte; } extern inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= __DIRTY_BITS; return pte; } extern inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= __ACCESS_BITS; return pte; } -extern inline pte_t pte_mkspecial(pte_t pte) { return pte; } - -#define PAGE_DIR_OFFSET(tsk,address) pgd_offset((tsk),(address)) - -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(address) pgd_offset(&init_mm, (address)) - -/* to find an entry in a page-table-directory. */ -#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) -#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address)) /* - * The smp_read_barrier_depends() in the following functions are required to - * order the load of *dir (the pointer in the top level page table) with any - * subsequent load of the returned pmd_t *ret (ret is data dependent on *dir). + * The smp_rmb() in the following functions are required to order the load of + * *dir (the pointer in the top level page table) with any subsequent load of + * the returned pmd_t *ret (ret is data dependent on *dir). * * If this ordering is not enforced, the CPU might load an older value of * *ret, which may be uninitialized data. See mm/memory.c:__pte_alloc for @@ -302,24 +244,23 @@ extern inline pte_t pte_mkspecial(pte_t pte) { return pte; } */ /* Find an entry in the second-level page table.. */ -extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) +extern inline pmd_t * pmd_offset(pud_t * dir, unsigned long address) { - pmd_t *ret = (pmd_t *) pgd_page_vaddr(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1)); - smp_read_barrier_depends(); /* see above */ + pmd_t *ret = pud_pgtable(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1)); + smp_rmb(); /* see above */ return ret; } +#define pmd_offset pmd_offset /* Find an entry in the third-level page table.. */ extern inline pte_t * pte_offset_kernel(pmd_t * dir, unsigned long address) { pte_t *ret = (pte_t *) pmd_page_vaddr(*dir) + ((address >> PAGE_SHIFT) & (PTRS_PER_PAGE - 1)); - smp_read_barrier_depends(); /* see above */ + smp_rmb(); /* see above */ return ret; } - -#define pte_offset_map(dir,addr) pte_offset_kernel((dir),(addr)) -#define pte_unmap(pte) do { } while (0) +#define pte_offset_kernel pte_offset_kernel extern pgd_t swapper_pg_dir[1024]; @@ -332,27 +273,53 @@ extern inline void update_mmu_cache(struct vm_area_struct * vma, { } +static inline void update_mmu_cache_range(struct vm_fault *vmf, + struct vm_area_struct *vma, unsigned long address, + pte_t *ptep, unsigned int nr) +{ +} + /* - * Non-present pages: high 24 bits are offset, next 8 bits type, - * low 32 bits zero. + * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that + * are !pte_none() && !pte_present(). + * + * Format of swap PTEs: + * + * 6 6 6 6 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 + * 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 + * <------------------- offset ------------------> E <--- type --> + * + * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * <--------------------------- zeroes --------------------------> + * + * E is the exclusive marker that is not stored in swap entries. */ extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) -{ pte_t pte; pte_val(pte) = (type << 32) | (offset << 40); return pte; } +{ pte_t pte; pte_val(pte) = ((type & 0x7f) << 32) | (offset << 40); return pte; } -#define __swp_type(x) (((x).val >> 32) & 0xff) +#define __swp_type(x) (((x).val >> 32) & 0x7f) #define __swp_offset(x) ((x).val >> 40) #define __swp_entry(type, off) ((swp_entry_t) { pte_val(mk_swap_pte((type), (off))) }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define pte_to_pgoff(pte) (pte_val(pte) >> 32) -#define pgoff_to_pte(off) ((pte_t) { ((off) << 32) | _PAGE_FILE }) +static inline bool pte_swp_exclusive(pte_t pte) +{ + return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; +} -#define PTE_FILE_MAX_BITS 32 +static inline pte_t pte_swp_mkexclusive(pte_t pte) +{ + pte_val(pte) |= _PAGE_SWP_EXCLUSIVE; + return pte; +} -#ifndef CONFIG_DISCONTIGMEM -#define kern_addr_valid(addr) (1) -#endif +static inline pte_t pte_swp_clear_exclusive(pte_t pte) +{ + pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE; + return pte; +} #define pte_ERROR(e) \ printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e)) @@ -363,14 +330,7 @@ extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) extern void paging_init(void); -#include <asm-generic/pgtable.h> - -/* - * No page table caches to initialise - */ -#define pgtable_cache_init() do { } while (0) - -/* We have our own get_unmapped_area to cope with ADDR_LIMIT_32BIT. */ +/* We have our own get_unmapped_area */ #define HAVE_ARCH_UNMAPPED_AREA #endif /* _ALPHA_PGTABLE_H */ diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h index 6cb7fe85c4b5..5dce5518a211 100644 --- a/arch/alpha/include/asm/processor.h +++ b/arch/alpha/include/asm/processor.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * include/asm-alpha/processor.h * @@ -7,49 +8,31 @@ #ifndef __ASM_ALPHA_PROCESSOR_H #define __ASM_ALPHA_PROCESSOR_H -#include <linux/personality.h> /* for ADDR_LIMIT_32BIT */ - -/* - * Returns current instruction pointer ("program counter"). - */ -#define current_text_addr() \ - ({ void *__pc; __asm__ ("br %0,.+4" : "=r"(__pc)); __pc; }) - /* * We have a 42-bit user address space: 4TB user VM... */ #define TASK_SIZE (0x40000000000UL) -#define STACK_TOP \ - (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL) +#define STACK_TOP (0x00120000000UL) #define STACK_TOP_MAX 0x00120000000UL /* This decides where the kernel will search for a free chunk of vm * space during mmap's. */ -#define TASK_UNMAPPED_BASE \ - ((current->personality & ADDR_LIMIT_32BIT) ? 0x40000000 : TASK_SIZE / 2) - -typedef struct { - unsigned long seg; -} mm_segment_t; +#define TASK_UNMAPPED_BASE (TASK_SIZE / 2) /* This is dead. Everything has been moved to thread_info. */ struct thread_struct { }; #define INIT_THREAD { } -/* Return saved PC of a blocked thread. */ -struct task_struct; -extern unsigned long thread_saved_pc(struct task_struct *); - /* Do necessary setup to start up a newly executed thread. */ +struct pt_regs; extern void start_thread(struct pt_regs *, unsigned long, unsigned long); /* Free all resources held by a thread. */ -extern void release_thread(struct task_struct *); - -unsigned long get_wchan(struct task_struct *p); +struct task_struct; +unsigned long __get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) @@ -60,12 +43,6 @@ unsigned long get_wchan(struct task_struct *p); #define ARCH_HAS_PREFETCH #define ARCH_HAS_PREFETCHW -#define ARCH_HAS_SPINLOCK_PREFETCH - -#ifndef CONFIG_SMP -/* Nothing to prefetch. */ -#define spin_lock_prefetch(lock) do { } while (0) -#endif extern inline void prefetch(const void *ptr) { @@ -77,11 +54,4 @@ extern inline void prefetchw(const void *ptr) __builtin_prefetch(ptr, 1, 3); } -#ifdef CONFIG_SMP -extern inline void spin_lock_prefetch(const void *ptr) -{ - __builtin_prefetch(ptr, 1, 3); -} -#endif - #endif /* __ASM_ALPHA_PROCESSOR_H */ diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h index 21128505ddbe..3557ce64ed21 100644 --- a/arch/alpha/include/asm/ptrace.h +++ b/arch/alpha/include/asm/ptrace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASMAXP_PTRACE_H #define _ASMAXP_PTRACE_H @@ -15,8 +16,12 @@ #define current_pt_regs() \ ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1) -#define signal_pt_regs current_pt_regs #define force_successful_syscall_return() (current_pt_regs()->r0 = 0) +static inline unsigned long regs_return_value(struct pt_regs *regs) +{ + return regs->r0; +} + #endif diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h deleted file mode 100644 index d70408d36677..000000000000 --- a/arch/alpha/include/asm/rtc.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef _ALPHA_RTC_H -#define _ALPHA_RTC_H - -#if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) \ - || defined(CONFIG_ALPHA_GENERIC) -# define get_rtc_time alpha_mv.rtc_get_time -# define set_rtc_time alpha_mv.rtc_set_time -#endif - -#include <asm-generic/rtc.h> - -#endif diff --git a/arch/alpha/include/asm/rwonce.h b/arch/alpha/include/asm/rwonce.h new file mode 100644 index 000000000000..35542bcf92b3 --- /dev/null +++ b/arch/alpha/include/asm/rwonce.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2019 Google LLC. + */ +#ifndef __ASM_RWONCE_H +#define __ASM_RWONCE_H + +#ifdef CONFIG_SMP + +#include <asm/barrier.h> + +/* + * Alpha is apparently daft enough to reorder address-dependent loads + * on some CPU implementations. Knock some common sense into it with + * a memory barrier in READ_ONCE(). + * + * For the curious, more information about this unusual reordering is + * available in chapter 15 of the "perfbook": + * + * https://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html + * + */ +#define __READ_ONCE(x) \ +({ \ + __unqual_scalar_typeof(x) __x = \ + (*(volatile typeof(__x) *)(&(x))); \ + mb(); \ + (typeof(x))__x; \ +}) + +#endif /* CONFIG_SMP */ + +#include <asm-generic/rwonce.h> + +#endif /* __ASM_RWONCE_H */ diff --git a/arch/alpha/include/asm/rwsem.h b/arch/alpha/include/asm/rwsem.h deleted file mode 100644 index a83bbea62c67..000000000000 --- a/arch/alpha/include/asm/rwsem.h +++ /dev/null @@ -1,223 +0,0 @@ -#ifndef _ALPHA_RWSEM_H -#define _ALPHA_RWSEM_H - -/* - * Written by Ivan Kokshaysky <ink@jurassic.park.msu.ru>, 2001. - * Based on asm-alpha/semaphore.h and asm-i386/rwsem.h - */ - -#ifndef _LINUX_RWSEM_H -#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead" -#endif - -#ifdef __KERNEL__ - -#include <linux/compiler.h> - -#define RWSEM_UNLOCKED_VALUE 0x0000000000000000L -#define RWSEM_ACTIVE_BIAS 0x0000000000000001L -#define RWSEM_ACTIVE_MASK 0x00000000ffffffffL -#define RWSEM_WAITING_BIAS (-0x0000000100000000L) -#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS -#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) - -static inline void __down_read(struct rw_semaphore *sem) -{ - long oldcount; -#ifndef CONFIG_SMP - oldcount = sem->count; - sem->count += RWSEM_ACTIVE_READ_BIAS; -#else - long temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%3,%2\n" - " stq_c %2,%1\n" - " beq %2,2f\n" - " mb\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (oldcount), "=m" (sem->count), "=&r" (temp) - :"Ir" (RWSEM_ACTIVE_READ_BIAS), "m" (sem->count) : "memory"); -#endif - if (unlikely(oldcount < 0)) - rwsem_down_read_failed(sem); -} - -/* - * trylock for reading -- returns 1 if successful, 0 if contention - */ -static inline int __down_read_trylock(struct rw_semaphore *sem) -{ - long old, new, res; - - res = sem->count; - do { - new = res + RWSEM_ACTIVE_READ_BIAS; - if (new <= 0) - break; - old = res; - res = cmpxchg(&sem->count, old, new); - } while (res != old); - return res >= 0 ? 1 : 0; -} - -static inline void __down_write(struct rw_semaphore *sem) -{ - long oldcount; -#ifndef CONFIG_SMP - oldcount = sem->count; - sem->count += RWSEM_ACTIVE_WRITE_BIAS; -#else - long temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%3,%2\n" - " stq_c %2,%1\n" - " beq %2,2f\n" - " mb\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (oldcount), "=m" (sem->count), "=&r" (temp) - :"Ir" (RWSEM_ACTIVE_WRITE_BIAS), "m" (sem->count) : "memory"); -#endif - if (unlikely(oldcount)) - rwsem_down_write_failed(sem); -} - -/* - * trylock for writing -- returns 1 if successful, 0 if contention - */ -static inline int __down_write_trylock(struct rw_semaphore *sem) -{ - long ret = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE, - RWSEM_ACTIVE_WRITE_BIAS); - if (ret == RWSEM_UNLOCKED_VALUE) - return 1; - return 0; -} - -static inline void __up_read(struct rw_semaphore *sem) -{ - long oldcount; -#ifndef CONFIG_SMP - oldcount = sem->count; - sem->count -= RWSEM_ACTIVE_READ_BIAS; -#else - long temp; - __asm__ __volatile__( - " mb\n" - "1: ldq_l %0,%1\n" - " subq %0,%3,%2\n" - " stq_c %2,%1\n" - " beq %2,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (oldcount), "=m" (sem->count), "=&r" (temp) - :"Ir" (RWSEM_ACTIVE_READ_BIAS), "m" (sem->count) : "memory"); -#endif - if (unlikely(oldcount < 0)) - if ((int)oldcount - RWSEM_ACTIVE_READ_BIAS == 0) - rwsem_wake(sem); -} - -static inline void __up_write(struct rw_semaphore *sem) -{ - long count; -#ifndef CONFIG_SMP - sem->count -= RWSEM_ACTIVE_WRITE_BIAS; - count = sem->count; -#else - long temp; - __asm__ __volatile__( - " mb\n" - "1: ldq_l %0,%1\n" - " subq %0,%3,%2\n" - " stq_c %2,%1\n" - " beq %2,2f\n" - " subq %0,%3,%0\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (count), "=m" (sem->count), "=&r" (temp) - :"Ir" (RWSEM_ACTIVE_WRITE_BIAS), "m" (sem->count) : "memory"); -#endif - if (unlikely(count)) - if ((int)count == 0) - rwsem_wake(sem); -} - -/* - * downgrade write lock to read lock - */ -static inline void __downgrade_write(struct rw_semaphore *sem) -{ - long oldcount; -#ifndef CONFIG_SMP - oldcount = sem->count; - sem->count -= RWSEM_WAITING_BIAS; -#else - long temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%3,%2\n" - " stq_c %2,%1\n" - " beq %2,2f\n" - " mb\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (oldcount), "=m" (sem->count), "=&r" (temp) - :"Ir" (-RWSEM_WAITING_BIAS), "m" (sem->count) : "memory"); -#endif - if (unlikely(oldcount < 0)) - rwsem_downgrade_wake(sem); -} - -static inline void rwsem_atomic_add(long val, struct rw_semaphore *sem) -{ -#ifndef CONFIG_SMP - sem->count += val; -#else - long temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%2,%0\n" - " stq_c %0,%1\n" - " beq %0,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (temp), "=m" (sem->count) - :"Ir" (val), "m" (sem->count)); -#endif -} - -static inline long rwsem_atomic_update(long val, struct rw_semaphore *sem) -{ -#ifndef CONFIG_SMP - sem->count += val; - return sem->count; -#else - long ret, temp; - __asm__ __volatile__( - "1: ldq_l %0,%1\n" - " addq %0,%3,%2\n" - " addq %0,%3,%0\n" - " stq_c %2,%1\n" - " beq %2,2f\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - :"=&r" (ret), "=m" (sem->count), "=&r" (temp) - :"Ir" (val), "m" (sem->count)); - - return ret; -#endif -} - -#endif /* __KERNEL__ */ -#endif /* _ALPHA_RWSEM_H */ diff --git a/arch/alpha/include/asm/scatterlist.h b/arch/alpha/include/asm/scatterlist.h deleted file mode 100644 index 017d7471c3c4..000000000000 --- a/arch/alpha/include/asm/scatterlist.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _ALPHA_SCATTERLIST_H -#define _ALPHA_SCATTERLIST_H - -#include <asm-generic/scatterlist.h> - -#endif /* !(_ALPHA_SCATTERLIST_H) */ diff --git a/arch/alpha/include/asm/sections.h b/arch/alpha/include/asm/sections.h deleted file mode 100644 index 43b40edd6e44..000000000000 --- a/arch/alpha/include/asm/sections.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _ALPHA_SECTIONS_H -#define _ALPHA_SECTIONS_H - -/* nothing to see, move along */ -#include <asm-generic/sections.h> - -#endif diff --git a/arch/alpha/include/asm/segment.h b/arch/alpha/include/asm/segment.h deleted file mode 100644 index 0453d97daae7..000000000000 --- a/arch/alpha/include/asm/segment.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __ALPHA_SEGMENT_H -#define __ALPHA_SEGMENT_H - -/* Only here because we have some old header files that expect it.. */ - -#endif diff --git a/arch/alpha/include/asm/serial.h b/arch/alpha/include/asm/serial.h index 9d263e8d8ccc..91115447319c 100644 --- a/arch/alpha/include/asm/serial.h +++ b/arch/alpha/include/asm/serial.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * include/asm-alpha/serial.h */ @@ -13,12 +14,12 @@ #define BASE_BAUD ( 1843200 / 16 ) /* Standard COM flags (except for COM4, because of the 8514 problem) */ -#ifdef CONFIG_SERIAL_DETECT_IRQ -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ) -#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ) +#ifdef CONFIG_SERIAL_8250_DETECT_IRQ +#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ) +#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ) #else -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) -#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF +#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST) +#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF #endif #define SERIAL_PORT_DFNS \ diff --git a/arch/alpha/include/asm/setup.h b/arch/alpha/include/asm/setup.h new file mode 100644 index 000000000000..262aab99e391 --- /dev/null +++ b/arch/alpha/include/asm/setup.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ALPHA_SETUP_H +#define __ALPHA_SETUP_H + +#include <uapi/asm/setup.h> + +/* + * We leave one page for the initial stack page, and one page for + * the initial process structure. Also, the console eats 3 MB for + * the initial bootloader (one of which we can reclaim later). + */ +#define BOOT_PCB 0x20000000 +#define BOOT_ADDR 0x20000000 +/* Remove when official MILO sources have ELF support: */ +#define BOOT_SIZE (16*1024) + +#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS +#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */ +#else +#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */ +#endif + +#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS) +#define SWAPPER_PGD KERNEL_START +#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000) +#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000) +#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000) +#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000) + +#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000) + +/* + * This is setup by the secondary bootstrap loader. Because + * the zero page is zeroed out as soon as the vm system is + * initialized, we need to copy things out into a more permanent + * place. + */ +#define PARAM ZERO_PGE +#define COMMAND_LINE ((char *)(absolute_pointer(PARAM + 0x0000))) +#define INITRD_START (*(unsigned long *) (PARAM+0x100)) +#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108)) + +#endif diff --git a/arch/alpha/include/asm/shmparam.h b/arch/alpha/include/asm/shmparam.h index cc901d58aebb..0c04fde1aeba 100644 --- a/arch/alpha/include/asm/shmparam.h +++ b/arch/alpha/include/asm/shmparam.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASMAXP_SHMPARAM_H #define _ASMAXP_SHMPARAM_H diff --git a/arch/alpha/include/asm/signal.h b/arch/alpha/include/asm/signal.h index 963f0494dca7..a40f02011667 100644 --- a/arch/alpha/include/asm/signal.h +++ b/arch/alpha/include/asm/signal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASMAXP_SIGNAL_H #define _ASMAXP_SIGNAL_H diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h index c46e714aa3e0..2264ae72673b 100644 --- a/arch/alpha/include/asm/smp.h +++ b/arch/alpha/include/asm/smp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_SMP_H #define __ASM_SMP_H diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h index 8d806d80ed24..76a32817e7be 100644 --- a/arch/alpha/include/asm/socket.h +++ b/arch/alpha/include/asm/socket.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_SOCKET_H #define _ASM_SOCKET_H diff --git a/arch/alpha/include/asm/sparsemem.h b/arch/alpha/include/asm/sparsemem.h new file mode 100644 index 000000000000..a0820fd2d4b1 --- /dev/null +++ b/arch/alpha/include/asm/sparsemem.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_ALPHA_SPARSEMEM_H +#define _ASM_ALPHA_SPARSEMEM_H + +#ifdef CONFIG_SPARSEMEM + +#define SECTION_SIZE_BITS 27 + +/* + * According to "Alpha Architecture Reference Manual" physical + * addresses are at most 48 bits. + * https://download.majix.org/dec/alpha_arch_ref.pdf + */ +#define MAX_PHYSMEM_BITS 48 + +#endif /* CONFIG_SPARSEMEM */ + +#endif /* _ASM_ALPHA_SPARSEMEM_H */ diff --git a/arch/alpha/include/asm/special_insns.h b/arch/alpha/include/asm/special_insns.h index 88d3452b21f0..798d0bdb11f9 100644 --- a/arch/alpha/include/asm/special_insns.h +++ b/arch/alpha/include/asm/special_insns.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_SPECIAL_INSNS_H #define __ALPHA_SPECIAL_INSNS_H @@ -14,10 +15,7 @@ enum implver_enum { (enum implver_enum) __implver; }) #else /* Try to eliminate some dead code. */ -#ifdef CONFIG_ALPHA_EV4 -#define implver() IMPLVER_EV4 -#endif -#ifdef CONFIG_ALPHA_EV5 +#ifdef CONFIG_ALPHA_EV56 #define implver() IMPLVER_EV5 #endif #if defined(CONFIG_ALPHA_EV6) diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h index 3bba21e41b81..1221cbb86a6f 100644 --- a/arch/alpha/include/asm/spinlock.h +++ b/arch/alpha/include/asm/spinlock.h @@ -1,8 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_SPINLOCK_H #define _ALPHA_SPINLOCK_H #include <linux/kernel.h> #include <asm/current.h> +#include <asm/barrier.h> +#include <asm/processor.h> /* * Simple spin lock operations. There are two variants, one clears IRQ's @@ -11,10 +14,12 @@ * We make no fairness assumptions. They have a cost. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) #define arch_spin_is_locked(x) ((x)->lock != 0) -#define arch_spin_unlock_wait(x) \ - do { cpu_relax(); } while ((x)->lock) + +static inline int arch_spin_value_unlocked(arch_spinlock_t lock) +{ + return lock.lock == 0; +} static inline void arch_spin_unlock(arch_spinlock_t * lock) { @@ -49,16 +54,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock) /***********************************************************/ -static inline int arch_read_can_lock(arch_rwlock_t *lock) -{ - return (lock->lock & 1) == 0; -} - -static inline int arch_write_can_lock(arch_rwlock_t *lock) -{ - return lock->lock == 0; -} - static inline void arch_read_lock(arch_rwlock_t *lock) { long regx; @@ -165,11 +160,4 @@ static inline void arch_write_unlock(arch_rwlock_t * lock) lock->lock = 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - -#define arch_spin_relax(lock) cpu_relax() -#define arch_read_relax(lock) cpu_relax() -#define arch_write_relax(lock) cpu_relax() - #endif /* _ALPHA_SPINLOCK_H */ diff --git a/arch/alpha/include/asm/spinlock_types.h b/arch/alpha/include/asm/spinlock_types.h index 54c2afce0a1d..05a444d77c53 100644 --- a/arch/alpha/include/asm/spinlock_types.h +++ b/arch/alpha/include/asm/spinlock_types.h @@ -1,8 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_SPINLOCK_TYPES_H #define _ALPHA_SPINLOCK_TYPES_H -#ifndef __LINUX_SPINLOCK_TYPES_H -# error "please don't include this file directly" +#ifndef __LINUX_SPINLOCK_TYPES_RAW_H +# error "Please do not include this file directly." #endif typedef struct { diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h index b02b8a282940..f043f91ff988 100644 --- a/arch/alpha/include/asm/string.h +++ b/arch/alpha/include/asm/string.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_STRING_H__ #define __ALPHA_STRING_H__ @@ -22,15 +23,27 @@ extern void * __memcpy(void *, const void *, size_t); #define __HAVE_ARCH_MEMSET extern void * __constant_c_memset(void *, unsigned long, size_t); +extern void * ___memset(void *, int, size_t); extern void * __memset(void *, int, size_t); extern void * memset(void *, int, size_t); -#define memset(s, c, n) \ -(__builtin_constant_p(c) \ - ? (__builtin_constant_p(n) && (c) == 0 \ - ? __builtin_memset((s),0,(n)) \ - : __constant_c_memset((s),0x0101010101010101UL*(unsigned char)(c),(n))) \ - : __memset((s),(c),(n))) +/* For gcc 3.x, we cannot have the inline function named "memset" because + the __builtin_memset will attempt to resolve to the inline as well, + leading to a "sorry" about unimplemented recursive inlining. */ +extern inline void *__memset(void *s, int c, size_t n) +{ + if (__builtin_constant_p(c)) { + if (__builtin_constant_p(n)) { + return __builtin_memset(s, c, n); + } else { + unsigned long c8 = (c & 0xff) * 0x0101010101010101UL; + return __constant_c_memset(s, c8, n); + } + } + return ___memset(s, c, n); +} + +#define memset __memset #define __HAVE_ARCH_STRCPY extern char * strcpy(char *,const char *); @@ -53,13 +66,14 @@ extern void * memchr(const void *, int, size_t); aligned values. The DEST and COUNT parameters must be even for correct operation. */ -#define __HAVE_ARCH_MEMSETW -extern void * __memsetw(void *dest, unsigned short, size_t count); - -#define memsetw(s, c, n) \ -(__builtin_constant_p(c) \ - ? __constant_c_memset((s),0x0001000100010001UL*(unsigned short)(c),(n)) \ - : __memsetw((s),(c),(n))) +#define __HAVE_ARCH_MEMSET16 +extern void * __memset16(void *dest, unsigned short, size_t count); +static inline void *memset16(uint16_t *p, uint16_t v, size_t n) +{ + if (__builtin_constant_p(v)) + return __constant_c_memset(p, 0x0001000100010001UL * v, n * 2); + return __memset16(p, v, n * 2); +} #endif /* __KERNEL__ */ diff --git a/arch/alpha/include/asm/switch_to.h b/arch/alpha/include/asm/switch_to.h index 44c0d4f2c0b2..762b7f975310 100644 --- a/arch/alpha/include/asm/switch_to.h +++ b/arch/alpha/include/asm/switch_to.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_SWITCH_TO_H #define __ALPHA_SWITCH_TO_H diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h new file mode 100644 index 000000000000..f21babaeed85 --- /dev/null +++ b/arch/alpha/include/asm/syscall.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_ALPHA_SYSCALL_H +#define _ASM_ALPHA_SYSCALL_H + +#include <uapi/linux/audit.h> + +static inline int syscall_get_arch(struct task_struct *task) +{ + return AUDIT_ARCH_ALPHA; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->r0; +} + +#endif /* _ASM_ALPHA_SYSCALL_H */ diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h deleted file mode 100644 index 7fde0f88da88..000000000000 --- a/arch/alpha/include/asm/termios.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef _ALPHA_TERMIOS_H -#define _ALPHA_TERMIOS_H - -#include <uapi/asm/termios.h> - -/* eof=^D eol=\0 eol2=\0 erase=del - werase=^W kill=^U reprint=^R sxtc=\0 - intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP> - start=^Q stop=^S lnext=^V discard=^U - vmin=\1 vtime=\0 -*/ -#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000" - -/* - * Translate a "termio" structure into a "termios". Ugh. - */ - -#define user_termio_to_kernel_termios(a_termios, u_termio) \ -({ \ - struct ktermios *k_termios = (a_termios); \ - struct termio k_termio; \ - int canon, ret; \ - \ - ret = copy_from_user(&k_termio, u_termio, sizeof(k_termio)); \ - if (!ret) { \ - /* Overwrite only the low bits. */ \ - *(unsigned short *)&k_termios->c_iflag = k_termio.c_iflag; \ - *(unsigned short *)&k_termios->c_oflag = k_termio.c_oflag; \ - *(unsigned short *)&k_termios->c_cflag = k_termio.c_cflag; \ - *(unsigned short *)&k_termios->c_lflag = k_termio.c_lflag; \ - canon = k_termio.c_lflag & ICANON; \ - \ - k_termios->c_cc[VINTR] = k_termio.c_cc[_VINTR]; \ - k_termios->c_cc[VQUIT] = k_termio.c_cc[_VQUIT]; \ - k_termios->c_cc[VERASE] = k_termio.c_cc[_VERASE]; \ - k_termios->c_cc[VKILL] = k_termio.c_cc[_VKILL]; \ - k_termios->c_cc[VEOL2] = k_termio.c_cc[_VEOL2]; \ - k_termios->c_cc[VSWTC] = k_termio.c_cc[_VSWTC]; \ - k_termios->c_cc[canon ? VEOF : VMIN] = k_termio.c_cc[_VEOF]; \ - k_termios->c_cc[canon ? VEOL : VTIME] = k_termio.c_cc[_VEOL]; \ - } \ - ret; \ -}) - -/* - * Translate a "termios" structure into a "termio". Ugh. - * - * Note the "fun" _VMIN overloading. - */ -#define kernel_termios_to_user_termio(u_termio, a_termios) \ -({ \ - struct ktermios *k_termios = (a_termios); \ - struct termio k_termio; \ - int canon; \ - \ - k_termio.c_iflag = k_termios->c_iflag; \ - k_termio.c_oflag = k_termios->c_oflag; \ - k_termio.c_cflag = k_termios->c_cflag; \ - canon = (k_termio.c_lflag = k_termios->c_lflag) & ICANON; \ - \ - k_termio.c_line = k_termios->c_line; \ - k_termio.c_cc[_VINTR] = k_termios->c_cc[VINTR]; \ - k_termio.c_cc[_VQUIT] = k_termios->c_cc[VQUIT]; \ - k_termio.c_cc[_VERASE] = k_termios->c_cc[VERASE]; \ - k_termio.c_cc[_VKILL] = k_termios->c_cc[VKILL]; \ - k_termio.c_cc[_VEOF] = k_termios->c_cc[canon ? VEOF : VMIN]; \ - k_termio.c_cc[_VEOL] = k_termios->c_cc[canon ? VEOL : VTIME]; \ - k_termio.c_cc[_VEOL2] = k_termios->c_cc[VEOL2]; \ - k_termio.c_cc[_VSWTC] = k_termios->c_cc[VSWTC]; \ - \ - copy_to_user(u_termio, &k_termio, sizeof(k_termio)); \ -}) - -#define user_termios_to_kernel_termios(k, u) \ - copy_from_user(k, u, sizeof(struct termios)) - -#define kernel_termios_to_user_termios(u, k) \ - copy_to_user(u, k, sizeof(struct termios)) - -#endif /* _ALPHA_TERMIOS_H */ diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h index 52cd2a4a3ff4..4a4d00b37986 100644 --- a/arch/alpha/include/asm/thread_info.h +++ b/arch/alpha/include/asm/thread_info.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_THREAD_INFO_H #define _ALPHA_THREAD_INFO_H @@ -18,8 +19,6 @@ struct thread_info { unsigned int flags; /* low level flags */ unsigned int ieee_state; /* see fpu.h */ - struct exec_domain *exec_domain; /* execution domain */ - mm_segment_t addr_limit; /* thread address space */ unsigned cpu; /* current CPU */ int preempt_count; /* 0 => preemptable, <0 => BUG */ unsigned int status; /* thread-synchronous flags */ @@ -27,8 +26,7 @@ struct thread_info { int bpt_nsaved; unsigned long bpt_addr[2]; /* breakpoint handling */ unsigned int bpt_insn[2]; - - struct restart_block restart_block; + unsigned long fp[32]; }; /* @@ -37,29 +35,21 @@ struct thread_info { #define INIT_THREAD_INFO(tsk) \ { \ .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .addr_limit = KERNEL_DS, \ .preempt_count = INIT_PREEMPT_COUNT, \ - .restart_block = { \ - .fn = do_no_restart_syscall, \ - }, \ } -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - /* How to get the thread information struct from C. */ register struct thread_info *__current_thread_info __asm__("$8"); #define current_thread_info() __current_thread_info +register unsigned long *current_stack_pointer __asm__ ("$30"); + #endif /* __ASSEMBLY__ */ /* Thread information allocation. */ #define THREAD_SIZE_ORDER 1 #define THREAD_SIZE (2*PAGE_SIZE) -#define PREEMPT_ACTIVE 0x40000000 - /* * Thread information flags: * - these are process state flags and used from assembly @@ -72,54 +62,30 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define TIF_NOTIFY_RESUME 1 /* callback before returning to user */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_SYSCALL_AUDIT 4 /* syscall audit active */ +#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */ #define TIF_DIE_IF_KERNEL 9 /* dik recursion lock */ #define TIF_MEMDIE 13 /* is terminating due to OOM killer */ +#define TIF_POLLING_NRFLAG 14 /* idle is polling for TIF_NEED_RESCHED */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) +#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) +#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL) +#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) /* Work to do on interrupt/exception return. */ #define _TIF_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ - _TIF_NOTIFY_RESUME) - -/* Work to do on any return to userspace. */ -#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK \ - | _TIF_SYSCALL_TRACE) + _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL) #define TS_UAC_NOPRINT 0x0001 /* ! Preserve the following three */ #define TS_UAC_NOFIX 0x0002 /* ! flags as they match */ #define TS_UAC_SIGBUS 0x0004 /* ! userspace part of 'osf_sysinfo' */ -#define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */ -#define TS_POLLING 0x0010 /* idle task polling need_resched, - skip sending interrupt */ -#ifndef __ASSEMBLY__ -#define HAVE_SET_RESTORE_SIGMASK 1 -static inline void set_restore_sigmask(void) -{ - struct thread_info *ti = current_thread_info(); - ti->status |= TS_RESTORE_SIGMASK; - WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags)); -} -static inline void clear_restore_sigmask(void) -{ - current_thread_info()->status &= ~TS_RESTORE_SIGMASK; -} -static inline bool test_restore_sigmask(void) -{ - return current_thread_info()->status & TS_RESTORE_SIGMASK; -} -static inline bool test_and_clear_restore_sigmask(void) -{ - struct thread_info *ti = current_thread_info(); - if (!(ti->status & TS_RESTORE_SIGMASK)) - return false; - ti->status &= ~TS_RESTORE_SIGMASK; - return true; -} -#endif +#define TS_SAVED_FP 0x0008 +#define TS_RESTORE_FP 0x0010 #define SET_UNALIGN_CTL(task,value) ({ \ __u32 status = task_thread_info(task)->status & ~UAC_BITMASK; \ @@ -144,5 +110,17 @@ static inline bool test_and_clear_restore_sigmask(void) put_user(res, (int __user *)(value)); \ }) +#ifndef __ASSEMBLY__ +extern void __save_fpu(void); + +static inline void save_fpu(void) +{ + if (!(current_thread_info()->status & TS_SAVED_FP)) { + current_thread_info()->status |= TS_SAVED_FP; + __save_fpu(); + } +} +#endif + #endif /* __KERNEL__ */ #endif /* _ALPHA_THREAD_INFO_H */ diff --git a/arch/alpha/include/asm/timex.h b/arch/alpha/include/asm/timex.h index afa0c45e3e98..f89798da8a14 100644 --- a/arch/alpha/include/asm/timex.h +++ b/arch/alpha/include/asm/timex.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/include/asm-alpha/timex.h * @@ -27,5 +28,6 @@ static inline cycles_t get_cycles (void) __asm__ __volatile__ ("rpcc %0" : "=r"(ret)); return ret; } +#define get_cycles get_cycles #endif diff --git a/arch/alpha/include/asm/tlb.h b/arch/alpha/include/asm/tlb.h index 42866759f3fa..4f79e331af5e 100644 --- a/arch/alpha/include/asm/tlb.h +++ b/arch/alpha/include/asm/tlb.h @@ -1,12 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_TLB_H #define _ALPHA_TLB_H -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, pte, addr) do { } while (0) - -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - #include <asm-generic/tlb.h> #define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte) diff --git a/arch/alpha/include/asm/tlbflush.h b/arch/alpha/include/asm/tlbflush.h index e89e0c2e15b1..ba4b359d6c39 100644 --- a/arch/alpha/include/asm/tlbflush.h +++ b/arch/alpha/include/asm/tlbflush.h @@ -1,10 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_TLBFLUSH_H #define _ALPHA_TLBFLUSH_H #include <linux/mm.h> #include <linux/sched.h> #include <asm/compiler.h> -#include <asm/pgalloc.h> #ifndef __EXTERN_INLINE #define __EXTERN_INLINE extern inline @@ -14,16 +14,6 @@ extern void __load_new_mm_context(struct mm_struct *); -/* Use a few helper functions to hide the ugly broken ASN - numbers on early Alphas (ev4 and ev45). */ - -__EXTERN_INLINE void -ev4_flush_tlb_current(struct mm_struct *mm) -{ - __load_new_mm_context(mm); - tbiap(); -} - __EXTERN_INLINE void ev5_flush_tlb_current(struct mm_struct *mm) { @@ -35,19 +25,6 @@ ev5_flush_tlb_current(struct mm_struct *mm) specific icache page. */ __EXTERN_INLINE void -ev4_flush_tlb_current_page(struct mm_struct * mm, - struct vm_area_struct *vma, - unsigned long addr) -{ - int tbi_flag = 2; - if (vma->vm_flags & VM_EXEC) { - __load_new_mm_context(mm); - tbi_flag = 3; - } - tbi(tbi_flag, addr); -} - -__EXTERN_INLINE void ev5_flush_tlb_current_page(struct mm_struct * mm, struct vm_area_struct *vma, unsigned long addr) @@ -59,18 +36,8 @@ ev5_flush_tlb_current_page(struct mm_struct * mm, } -#ifdef CONFIG_ALPHA_GENERIC -# define flush_tlb_current alpha_mv.mv_flush_tlb_current -# define flush_tlb_current_page alpha_mv.mv_flush_tlb_current_page -#else -# ifdef CONFIG_ALPHA_EV4 -# define flush_tlb_current ev4_flush_tlb_current -# define flush_tlb_current_page ev4_flush_tlb_current_page -# else -# define flush_tlb_current ev5_flush_tlb_current -# define flush_tlb_current_page ev5_flush_tlb_current_page -# endif -#endif +#define flush_tlb_current ev5_flush_tlb_current +#define flush_tlb_current_page ev5_flush_tlb_current_page #ifdef __MMU_EXTERN_INLINE #undef __EXTERN_INLINE diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h index 9251e13e144f..7d393036aa8f 100644 --- a/arch/alpha/include/asm/topology.h +++ b/arch/alpha/include/asm/topology.h @@ -1,49 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_ALPHA_TOPOLOGY_H #define _ASM_ALPHA_TOPOLOGY_H #include <linux/smp.h> #include <linux/threads.h> +#include <linux/numa.h> #include <asm/machvec.h> -#ifdef CONFIG_NUMA -static inline int cpu_to_node(int cpu) -{ - int node; - - if (!alpha_mv.cpuid_to_nid) - return 0; - - node = alpha_mv.cpuid_to_nid(cpu); - -#ifdef DEBUG_NUMA - BUG_ON(node < 0); -#endif - - return node; -} - -extern struct cpumask node_to_cpumask_map[]; -/* FIXME: This is dumb, recalculating every time. But simple. */ -static const struct cpumask *cpumask_of_node(int node) -{ - int cpu; - - if (node == -1) - return cpu_all_mask; - - cpumask_clear(&node_to_cpumask_map[node]); - - for_each_online_cpu(cpu) { - if (cpu_to_node(cpu) == node) - cpumask_set_cpu(cpu, node_to_cpumask_map[node]); - } - - return &node_to_cpumask_map[node]; -} - -#define cpumask_of_pcibus(bus) (cpu_online_mask) - -#endif /* !CONFIG_NUMA */ # include <asm-generic/topology.h> #endif /* _ASM_ALPHA_TOPOLOGY_H */ diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h index f61e1a56c378..b60b60276484 100644 --- a/arch/alpha/include/asm/types.h +++ b/arch/alpha/include/asm/types.h @@ -1,7 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_TYPES_H #define _ALPHA_TYPES_H -#include <asm-generic/int-ll64.h> #include <uapi/asm/types.h> #endif /* _ALPHA_TYPES_H */ diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h index 766fdfde2b7a..ef295cbb797c 100644 --- a/arch/alpha/include/asm/uaccess.h +++ b/arch/alpha/include/asm/uaccess.h @@ -1,53 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_UACCESS_H #define __ALPHA_UACCESS_H -#include <linux/errno.h> -#include <linux/sched.h> - - -/* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with - * get_fs() == KERNEL_DS, checking is bypassed. - * - * Or at least it did once upon a time. Nowadays it is a mask that - * defines which bits of the address space are off limits. This is a - * wee bit faster than the above. - * - * For historical reasons, these macros are grossly misnamed. - */ - -#define KERNEL_DS ((mm_segment_t) { 0UL }) -#define USER_DS ((mm_segment_t) { -0x40000000000UL }) - -#define VERIFY_READ 0 -#define VERIFY_WRITE 1 - -#define get_fs() (current_thread_info()->addr_limit) -#define get_ds() (KERNEL_DS) -#define set_fs(x) (current_thread_info()->addr_limit = (x)) - -#define segment_eq(a,b) ((a).seg == (b).seg) - -/* - * Is a address valid? This does a straightforward calculation rather - * than tests. - * - * Address valid if: - * - "addr" doesn't have any high-bits set - * - AND "size" doesn't have any high-bits set - * - AND "addr+size" doesn't have any high-bits set - * - OR we are in kernel mode. - */ -#define __access_ok(addr,size,segment) \ - (((segment).seg & (addr | size | (addr+size))) == 0) - -#define access_ok(type,addr,size) \ -({ \ - __chk_user_ptr(addr); \ - __access_ok(((unsigned long)(addr)),(size),get_fs()); \ -}) - +#include <asm-generic/access_ok.h> /* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. @@ -60,20 +15,20 @@ * (a) re-use the arguments for side effects (sizeof/typeof is ok) * (b) require any knowledge of processes at this stage */ -#define put_user(x,ptr) \ - __put_user_check((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr)),get_fs()) -#define get_user(x,ptr) \ - __get_user_check((x),(ptr),sizeof(*(ptr)),get_fs()) +#define put_user(x, ptr) \ + __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) +#define get_user(x, ptr) \ + __get_user_check((x), (ptr), sizeof(*(ptr))) /* * The "__xxx" versions do not do address space checking, useful when * doing multiple accesses to the same area (the programmer has to do the * checks by hand with "access_ok()") */ -#define __put_user(x,ptr) \ - __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) -#define __get_user(x,ptr) \ - __get_user_nocheck((x),(ptr),sizeof(*(ptr))) +#define __put_user(x, ptr) \ + __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) +#define __get_user(x, ptr) \ + __get_user_nocheck((x), (ptr), sizeof(*(ptr))) /* * The "lda %1, 2b-1b(%0)" bits are magic to get the assembler to @@ -81,10 +36,15 @@ * more extensive comments with fixup_inline_exception below for * more information. */ +#define EXC(label,cont,res,err) \ + ".section __ex_table,\"a\"\n" \ + " .long "#label"-.\n" \ + " lda "#res","#cont"-"#label"("#err")\n" \ + ".previous\n" extern void __get_user_unknown(void); -#define __get_user_nocheck(x,ptr,size) \ +#define __get_user_nocheck(x, ptr, size) \ ({ \ long __gu_err = 0; \ unsigned long __gu_val; \ @@ -96,27 +56,27 @@ extern void __get_user_unknown(void); case 8: __get_user_64(ptr); break; \ default: __get_user_unknown(); break; \ } \ - (x) = (__typeof__(*(ptr))) __gu_val; \ + (x) = (__force __typeof__(*(ptr))) __gu_val; \ __gu_err; \ }) -#define __get_user_check(x,ptr,size,segment) \ -({ \ - long __gu_err = -EFAULT; \ - unsigned long __gu_val = 0; \ - const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ - if (__access_ok((unsigned long)__gu_addr,size,segment)) { \ - __gu_err = 0; \ - switch (size) { \ - case 1: __get_user_8(__gu_addr); break; \ - case 2: __get_user_16(__gu_addr); break; \ - case 4: __get_user_32(__gu_addr); break; \ - case 8: __get_user_64(__gu_addr); break; \ - default: __get_user_unknown(); break; \ - } \ - } \ - (x) = (__typeof__(*(ptr))) __gu_val; \ - __gu_err; \ +#define __get_user_check(x, ptr, size) \ +({ \ + long __gu_err = -EFAULT; \ + unsigned long __gu_val = 0; \ + const __typeof__(*(ptr)) __user *__gu_addr = (ptr); \ + if (__access_ok(__gu_addr, size)) { \ + __gu_err = 0; \ + switch (size) { \ + case 1: __get_user_8(__gu_addr); break; \ + case 2: __get_user_16(__gu_addr); break; \ + case 4: __get_user_32(__gu_addr); break; \ + case 8: __get_user_64(__gu_addr); break; \ + default: __get_user_unknown(); break; \ + } \ + } \ + (x) = (__force __typeof__(*(ptr))) __gu_val; \ + __gu_err; \ }) struct __large_struct { unsigned long buf[100]; }; @@ -125,111 +85,62 @@ struct __large_struct { unsigned long buf[100]; }; #define __get_user_64(addr) \ __asm__("1: ldq %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) #define __get_user_32(addr) \ __asm__("1: ldl %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) -#ifdef __alpha_bwx__ -/* Those lucky bastards with ev56 and later CPUs can do byte/word moves. */ - #define __get_user_16(addr) \ __asm__("1: ldwu %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) #define __get_user_8(addr) \ __asm__("1: ldbu %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(__gu_val), "=r"(__gu_err) \ : "m"(__m(addr)), "1"(__gu_err)) -#else -/* Unfortunately, we can't get an unaligned access trap for the sub-word - load, so we have to do a general unaligned operation. */ - -#define __get_user_16(addr) \ -{ \ - long __gu_tmp; \ - __asm__("1: ldq_u %0,0(%3)\n" \ - "2: ldq_u %1,1(%3)\n" \ - " extwl %0,%3,%0\n" \ - " extwh %1,%3,%1\n" \ - " or %0,%1,%0\n" \ - "3:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 3b-1b(%2)\n" \ - " .long 2b - .\n" \ - " lda %0, 3b-2b(%2)\n" \ - ".previous" \ - : "=&r"(__gu_val), "=&r"(__gu_tmp), "=r"(__gu_err) \ - : "r"(addr), "2"(__gu_err)); \ -} - -#define __get_user_8(addr) \ - __asm__("1: ldq_u %0,0(%2)\n" \ - " extbl %0,%2,%0\n" \ - "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0, 2b-1b(%1)\n" \ - ".previous" \ - : "=&r"(__gu_val), "=r"(__gu_err) \ - : "r"(addr), "1"(__gu_err)) -#endif extern void __put_user_unknown(void); -#define __put_user_nocheck(x,ptr,size) \ +#define __put_user_nocheck(x, ptr, size) \ ({ \ long __pu_err = 0; \ __chk_user_ptr(ptr); \ switch (size) { \ - case 1: __put_user_8(x,ptr); break; \ - case 2: __put_user_16(x,ptr); break; \ - case 4: __put_user_32(x,ptr); break; \ - case 8: __put_user_64(x,ptr); break; \ + case 1: __put_user_8(x, ptr); break; \ + case 2: __put_user_16(x, ptr); break; \ + case 4: __put_user_32(x, ptr); break; \ + case 8: __put_user_64(x, ptr); break; \ default: __put_user_unknown(); break; \ } \ __pu_err; \ }) -#define __put_user_check(x,ptr,size,segment) \ -({ \ - long __pu_err = -EFAULT; \ - __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ - if (__access_ok((unsigned long)__pu_addr,size,segment)) { \ - __pu_err = 0; \ - switch (size) { \ - case 1: __put_user_8(x,__pu_addr); break; \ - case 2: __put_user_16(x,__pu_addr); break; \ - case 4: __put_user_32(x,__pu_addr); break; \ - case 8: __put_user_64(x,__pu_addr); break; \ - default: __put_user_unknown(); break; \ - } \ - } \ - __pu_err; \ +#define __put_user_check(x, ptr, size) \ +({ \ + long __pu_err = -EFAULT; \ + __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ + if (__access_ok(__pu_addr, size)) { \ + __pu_err = 0; \ + switch (size) { \ + case 1: __put_user_8(x, __pu_addr); break; \ + case 2: __put_user_16(x, __pu_addr); break; \ + case 4: __put_user_32(x, __pu_addr); break; \ + case 8: __put_user_64(x, __pu_addr); break; \ + default: __put_user_unknown(); break; \ + } \ + } \ + __pu_err; \ }) /* @@ -237,253 +148,65 @@ extern void __put_user_unknown(void); * instead of writing: this is because they do not write to * any memory gcc knows about, so there are no aliasing issues */ -#define __put_user_64(x,addr) \ +#define __put_user_64(x, addr) \ __asm__ __volatile__("1: stq %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m" (__m(addr)), "rJ" (x), "0"(__pu_err)) -#define __put_user_32(x,addr) \ +#define __put_user_32(x, addr) \ __asm__ __volatile__("1: stl %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) -#ifdef __alpha_bwx__ -/* Those lucky bastards with ev56 and later CPUs can do byte/word moves. */ - -#define __put_user_16(x,addr) \ +#define __put_user_16(x, addr) \ __asm__ __volatile__("1: stw %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) -#define __put_user_8(x,addr) \ +#define __put_user_8(x, addr) \ __asm__ __volatile__("1: stb %r2,%1\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ + EXC(1b,2b,$31,%0) \ : "=r"(__pu_err) \ : "m"(__m(addr)), "rJ"(x), "0"(__pu_err)) -#else -/* Unfortunately, we can't get an unaligned access trap for the sub-word - write, so we have to do a general unaligned operation. */ - -#define __put_user_16(x,addr) \ -{ \ - long __pu_tmp1, __pu_tmp2, __pu_tmp3, __pu_tmp4; \ - __asm__ __volatile__( \ - "1: ldq_u %2,1(%5)\n" \ - "2: ldq_u %1,0(%5)\n" \ - " inswh %6,%5,%4\n" \ - " inswl %6,%5,%3\n" \ - " mskwh %2,%5,%2\n" \ - " mskwl %1,%5,%1\n" \ - " or %2,%4,%2\n" \ - " or %1,%3,%1\n" \ - "3: stq_u %2,1(%5)\n" \ - "4: stq_u %1,0(%5)\n" \ - "5:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31, 5b-1b(%0)\n" \ - " .long 2b - .\n" \ - " lda $31, 5b-2b(%0)\n" \ - " .long 3b - .\n" \ - " lda $31, 5b-3b(%0)\n" \ - " .long 4b - .\n" \ - " lda $31, 5b-4b(%0)\n" \ - ".previous" \ - : "=r"(__pu_err), "=&r"(__pu_tmp1), \ - "=&r"(__pu_tmp2), "=&r"(__pu_tmp3), \ - "=&r"(__pu_tmp4) \ - : "r"(addr), "r"((unsigned long)(x)), "0"(__pu_err)); \ -} - -#define __put_user_8(x,addr) \ -{ \ - long __pu_tmp1, __pu_tmp2; \ - __asm__ __volatile__( \ - "1: ldq_u %1,0(%4)\n" \ - " insbl %3,%4,%2\n" \ - " mskbl %1,%4,%1\n" \ - " or %1,%2,%1\n" \ - "2: stq_u %1,0(%4)\n" \ - "3:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda $31, 3b-1b(%0)\n" \ - " .long 2b - .\n" \ - " lda $31, 3b-2b(%0)\n" \ - ".previous" \ - : "=r"(__pu_err), \ - "=&r"(__pu_tmp1), "=&r"(__pu_tmp2) \ - : "r"((unsigned long)(x)), "r"(addr), "0"(__pu_err)); \ -} -#endif - /* * Complex access routines */ -/* This little bit of silliness is to get the GP loaded for a function - that ordinarily wouldn't. Otherwise we could have it done by the macro - directly, which can be optimized the linker. */ -#ifdef MODULE -#define __module_address(sym) "r"(sym), -#define __module_call(ra, arg, sym) "jsr $" #ra ",(%" #arg ")," #sym -#else -#define __module_address(sym) -#define __module_call(ra, arg, sym) "bsr $" #ra "," #sym " !samegp" -#endif - -extern void __copy_user(void); - -extern inline long -__copy_tofrom_user_nocheck(void *to, const void *from, long len) -{ - register void * __cu_to __asm__("$6") = to; - register const void * __cu_from __asm__("$7") = from; - register long __cu_len __asm__("$0") = len; - - __asm__ __volatile__( - __module_call(28, 3, __copy_user) - : "=r" (__cu_len), "=r" (__cu_from), "=r" (__cu_to) - : __module_address(__copy_user) - "0" (__cu_len), "1" (__cu_from), "2" (__cu_to) - : "$1","$2","$3","$4","$5","$28","memory"); - - return __cu_len; -} - -extern inline long -__copy_tofrom_user(void *to, const void *from, long len, const void __user *validate) -{ - if (__access_ok((unsigned long)validate, len, get_fs())) - len = __copy_tofrom_user_nocheck(to, from, len); - return len; -} - -#define __copy_to_user(to,from,n) \ -({ \ - __chk_user_ptr(to); \ - __copy_tofrom_user_nocheck((__force void *)(to),(from),(n)); \ -}) -#define __copy_from_user(to,from,n) \ -({ \ - __chk_user_ptr(from); \ - __copy_tofrom_user_nocheck((to),(__force void *)(from),(n)); \ -}) - -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user - +extern long __copy_user(void *to, const void *from, long len); -extern inline long -copy_to_user(void __user *to, const void *from, long n) +static inline unsigned long +raw_copy_from_user(void *to, const void __user *from, unsigned long len) { - return __copy_tofrom_user((__force void *)to, from, n, to); + return __copy_user(to, (__force const void *)from, len); } -extern inline long -copy_from_user(void *to, const void __user *from, long n) +static inline unsigned long +raw_copy_to_user(void __user *to, const void *from, unsigned long len) { - return __copy_tofrom_user(to, (__force void *)from, n, from); + return __copy_user((__force void *)to, from, len); } -extern void __do_clear_user(void); +extern long __clear_user(void __user *to, long len); -extern inline long -__clear_user(void __user *to, long len) -{ - register void __user * __cl_to __asm__("$6") = to; - register long __cl_len __asm__("$0") = len; - __asm__ __volatile__( - __module_call(28, 2, __do_clear_user) - : "=r"(__cl_len), "=r"(__cl_to) - : __module_address(__do_clear_user) - "0"(__cl_len), "1"(__cl_to) - : "$1","$2","$3","$4","$5","$28","memory"); - return __cl_len; -} - -extern inline long +static inline long clear_user(void __user *to, long len) { - if (__access_ok((unsigned long)to, len, get_fs())) + if (__access_ok(to, len)) len = __clear_user(to, len); return len; } -#undef __module_address -#undef __module_call - -#define user_addr_max() \ - (segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL) - extern long strncpy_from_user(char *dest, const char __user *src, long count); -extern __must_check long strlen_user(const char __user *str); extern __must_check long strnlen_user(const char __user *str, long n); -/* - * About the exception table: - * - * - insn is a 32-bit pc-relative offset from the faulting insn. - * - nextinsn is a 16-bit offset off of the faulting instruction - * (not off of the *next* instruction as branches are). - * - errreg is the register in which to place -EFAULT. - * - valreg is the final target register for the load sequence - * and will be zeroed. - * - * Either errreg or valreg may be $31, in which case nothing happens. - * - * The exception fixup information "just so happens" to be arranged - * as in a MEM format instruction. This lets us emit our three - * values like so: - * - * lda valreg, nextinsn(errreg) - * - */ - -struct exception_table_entry -{ - signed int insn; - union exception_fixup { - unsigned unit; - struct { - signed int nextinsn : 16; - unsigned int errreg : 5; - unsigned int valreg : 5; - } bits; - } fixup; -}; - -/* Returns the new pc */ -#define fixup_exception(map_reg, _fixup, pc) \ -({ \ - if ((_fixup)->fixup.bits.valreg != 31) \ - map_reg((_fixup)->fixup.bits.valreg) = 0; \ - if ((_fixup)->fixup.bits.errreg != 31) \ - map_reg((_fixup)->fixup.bits.errreg) = -EFAULT; \ - (pc) + (_fixup)->fixup.bits.nextinsn; \ -}) - -#define ARCH_HAS_SORT_EXTABLE -#define ARCH_HAS_SEARCH_EXTABLE +#include <asm/extable.h> #endif /* __ALPHA_UACCESS_H */ diff --git a/arch/alpha/include/asm/ucontext.h b/arch/alpha/include/asm/ucontext.h index 47578ab42152..af1f3465b8d7 100644 --- a/arch/alpha/include/asm/ucontext.h +++ b/arch/alpha/include/asm/ucontext.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASMAXP_UCONTEXT_H #define _ASMAXP_UCONTEXT_H diff --git a/arch/alpha/include/asm/unaligned.h b/arch/alpha/include/asm/unaligned.h deleted file mode 100644 index 3787c60aed3f..000000000000 --- a/arch/alpha/include/asm/unaligned.h +++ /dev/null @@ -1,11 +0,0 @@ -#ifndef _ASM_ALPHA_UNALIGNED_H -#define _ASM_ALPHA_UNALIGNED_H - -#include <linux/unaligned/le_struct.h> -#include <linux/unaligned/be_byteshift.h> -#include <linux/unaligned/generic.h> - -#define get_unaligned __get_unaligned_le -#define put_unaligned __put_unaligned_le - -#endif /* _ASM_ALPHA_UNALIGNED_H */ diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h index 43baee17acdf..caabd92ea709 100644 --- a/arch/alpha/include/asm/unistd.h +++ b/arch/alpha/include/asm/unistd.h @@ -1,19 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_UNISTD_H #define _ALPHA_UNISTD_H #include <uapi/asm/unistd.h> +#define NR_syscalls __NR_syscalls -#define NR_SYSCALLS 506 - +#define __ARCH_WANT_NEW_STAT #define __ARCH_WANT_OLD_READDIR #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYS_GETHOSTNAME #define __ARCH_WANT_SYS_FADVISE64 #define __ARCH_WANT_SYS_GETPGRP -#define __ARCH_WANT_SYS_OLD_GETRLIMIT #define __ARCH_WANT_SYS_OLDUMOUNT #define __ARCH_WANT_SYS_SIGPENDING +#define __ARCH_WANT_SYS_UTIME #define __ARCH_WANT_SYS_FORK #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE diff --git a/arch/alpha/include/asm/user.h b/arch/alpha/include/asm/user.h index a4eb6a4ca8d1..c9f525a6aab8 100644 --- a/arch/alpha/include/asm/user.h +++ b/arch/alpha/include/asm/user.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_USER_H #define _ALPHA_USER_H @@ -44,10 +45,4 @@ struct user { char u_comm[32]; /* user command name */ }; -#define NBPG PAGE_SIZE -#define UPAGES 1 -#define HOST_TEXT_START_ADDR (u.start_code) -#define HOST_DATA_START_ADDR (u.start_data) -#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) - #endif /* _ALPHA_USER_H */ diff --git a/arch/alpha/include/asm/vga.h b/arch/alpha/include/asm/vga.h index c00106bac521..919931cb5b63 100644 --- a/arch/alpha/include/asm/vga.h +++ b/arch/alpha/include/asm/vga.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Access to VGA videoram * @@ -12,6 +13,7 @@ #define VT_BUF_HAVE_RW #define VT_BUF_HAVE_MEMSETW #define VT_BUF_HAVE_MEMCPYW +#define VT_BUF_HAVE_MEMMOVEW static inline void scr_writew(u16 val, volatile u16 *addr) { @@ -34,11 +36,12 @@ static inline void scr_memsetw(u16 *s, u16 c, unsigned int count) if (__is_ioaddr(s)) memsetw_io((u16 __iomem *) s, c, count); else - memsetw(s, c, count); + memset16(s, c, count / 2); } /* Do not trust that the usage will be correct; analyze the arguments. */ extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count); +extern void scr_memmovew(u16 *d, const u16 *s, unsigned int count); /* ??? These are currently only used for downloading character sets. As such, they don't need memory barriers. Is this all they are intended diff --git a/arch/alpha/include/asm/vmalloc.h b/arch/alpha/include/asm/vmalloc.h new file mode 100644 index 000000000000..0a9a366a4d34 --- /dev/null +++ b/arch/alpha/include/asm/vmalloc.h @@ -0,0 +1,4 @@ +#ifndef _ASM_ALPHA_VMALLOC_H +#define _ASM_ALPHA_VMALLOC_H + +#endif /* _ASM_ALPHA_VMALLOC_H */ diff --git a/arch/alpha/include/asm/word-at-a-time.h b/arch/alpha/include/asm/word-at-a-time.h index 6b340d0f1521..4035265f1ad9 100644 --- a/arch/alpha/include/asm/word-at-a-time.h +++ b/arch/alpha/include/asm/word-at-a-time.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_WORD_AT_A_TIME_H #define _ASM_WORD_AT_A_TIME_H @@ -52,4 +53,6 @@ static inline unsigned long find_zero(unsigned long bits) #endif } +#define zero_bytemask(mask) ((2ul << (find_zero(mask) * 8)) - 1) + #endif /* _ASM_WORD_AT_A_TIME_H */ diff --git a/arch/alpha/include/asm/wrperfmon.h b/arch/alpha/include/asm/wrperfmon.h index 319bf6788d87..c97b82a1f7db 100644 --- a/arch/alpha/include/asm/wrperfmon.h +++ b/arch/alpha/include/asm/wrperfmon.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Definitions for use with the Alpha wrperfmon PAL call. */ diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h deleted file mode 100644 index 0ca9724597c1..000000000000 --- a/arch/alpha/include/asm/xchg.h +++ /dev/null @@ -1,258 +0,0 @@ -#ifndef _ALPHA_CMPXCHG_H -#error Do not include xchg.h directly! -#else -/* - * xchg/xchg_local and cmpxchg/cmpxchg_local share the same code - * except that local version do not have the expensive memory barrier. - * So this file is included twice from asm/cmpxchg.h. - */ - -/* - * Atomic exchange. - * Since it can be used to implement critical sections - * it must clobber "memory" (also for interrupts in UP). - */ - -static inline unsigned long -____xchg(_u8, volatile char *m, unsigned long val) -{ - unsigned long ret, tmp, addr64; - - __asm__ __volatile__( - " andnot %4,7,%3\n" - " insbl %1,%4,%1\n" - "1: ldq_l %2,0(%3)\n" - " extbl %2,%4,%0\n" - " mskbl %2,%4,%2\n" - " or %1,%2,%2\n" - " stq_c %2,0(%3)\n" - " beq %2,2f\n" - __ASM__MB - ".subsection 2\n" - "2: br 1b\n" - ".previous" - : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64) - : "r" ((long)m), "1" (val) : "memory"); - - return ret; -} - -static inline unsigned long -____xchg(_u16, volatile short *m, unsigned long val) -{ - unsigned long ret, tmp, addr64; - - __asm__ __volatile__( - " andnot %4,7,%3\n" - " inswl %1,%4,%1\n" - "1: ldq_l %2,0(%3)\n" - " extwl %2,%4,%0\n" - " mskwl %2,%4,%2\n" - " or %1,%2,%2\n" - " stq_c %2,0(%3)\n" - " beq %2,2f\n" - __ASM__MB - ".subsection 2\n" - "2: br 1b\n" - ".previous" - : "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64) - : "r" ((long)m), "1" (val) : "memory"); - - return ret; -} - -static inline unsigned long -____xchg(_u32, volatile int *m, unsigned long val) -{ - unsigned long dummy; - - __asm__ __volatile__( - "1: ldl_l %0,%4\n" - " bis $31,%3,%1\n" - " stl_c %1,%2\n" - " beq %1,2f\n" - __ASM__MB - ".subsection 2\n" - "2: br 1b\n" - ".previous" - : "=&r" (val), "=&r" (dummy), "=m" (*m) - : "rI" (val), "m" (*m) : "memory"); - - return val; -} - -static inline unsigned long -____xchg(_u64, volatile long *m, unsigned long val) -{ - unsigned long dummy; - - __asm__ __volatile__( - "1: ldq_l %0,%4\n" - " bis $31,%3,%1\n" - " stq_c %1,%2\n" - " beq %1,2f\n" - __ASM__MB - ".subsection 2\n" - "2: br 1b\n" - ".previous" - : "=&r" (val), "=&r" (dummy), "=m" (*m) - : "rI" (val), "m" (*m) : "memory"); - - return val; -} - -/* This function doesn't exist, so you'll get a linker error - if something tries to do an invalid xchg(). */ -extern void __xchg_called_with_bad_pointer(void); - -static __always_inline unsigned long -____xchg(, volatile void *ptr, unsigned long x, int size) -{ - switch (size) { - case 1: - return ____xchg(_u8, ptr, x); - case 2: - return ____xchg(_u16, ptr, x); - case 4: - return ____xchg(_u32, ptr, x); - case 8: - return ____xchg(_u64, ptr, x); - } - __xchg_called_with_bad_pointer(); - return x; -} - -/* - * Atomic compare and exchange. Compare OLD with MEM, if identical, - * store NEW in MEM. Return the initial value in MEM. Success is - * indicated by comparing RETURN with OLD. - * - * The memory barrier should be placed in SMP only when we actually - * make the change. If we don't change anything (so if the returned - * prev is equal to old) then we aren't acquiring anything new and - * we don't need any memory barrier as far I can tell. - */ - -static inline unsigned long -____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new) -{ - unsigned long prev, tmp, cmp, addr64; - - __asm__ __volatile__( - " andnot %5,7,%4\n" - " insbl %1,%5,%1\n" - "1: ldq_l %2,0(%4)\n" - " extbl %2,%5,%0\n" - " cmpeq %0,%6,%3\n" - " beq %3,2f\n" - " mskbl %2,%5,%2\n" - " or %1,%2,%2\n" - " stq_c %2,0(%4)\n" - " beq %2,3f\n" - __ASM__MB - "2:\n" - ".subsection 2\n" - "3: br 1b\n" - ".previous" - : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64) - : "r" ((long)m), "Ir" (old), "1" (new) : "memory"); - - return prev; -} - -static inline unsigned long -____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new) -{ - unsigned long prev, tmp, cmp, addr64; - - __asm__ __volatile__( - " andnot %5,7,%4\n" - " inswl %1,%5,%1\n" - "1: ldq_l %2,0(%4)\n" - " extwl %2,%5,%0\n" - " cmpeq %0,%6,%3\n" - " beq %3,2f\n" - " mskwl %2,%5,%2\n" - " or %1,%2,%2\n" - " stq_c %2,0(%4)\n" - " beq %2,3f\n" - __ASM__MB - "2:\n" - ".subsection 2\n" - "3: br 1b\n" - ".previous" - : "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64) - : "r" ((long)m), "Ir" (old), "1" (new) : "memory"); - - return prev; -} - -static inline unsigned long -____cmpxchg(_u32, volatile int *m, int old, int new) -{ - unsigned long prev, cmp; - - __asm__ __volatile__( - "1: ldl_l %0,%5\n" - " cmpeq %0,%3,%1\n" - " beq %1,2f\n" - " mov %4,%1\n" - " stl_c %1,%2\n" - " beq %1,3f\n" - __ASM__MB - "2:\n" - ".subsection 2\n" - "3: br 1b\n" - ".previous" - : "=&r"(prev), "=&r"(cmp), "=m"(*m) - : "r"((long) old), "r"(new), "m"(*m) : "memory"); - - return prev; -} - -static inline unsigned long -____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new) -{ - unsigned long prev, cmp; - - __asm__ __volatile__( - "1: ldq_l %0,%5\n" - " cmpeq %0,%3,%1\n" - " beq %1,2f\n" - " mov %4,%1\n" - " stq_c %1,%2\n" - " beq %1,3f\n" - __ASM__MB - "2:\n" - ".subsection 2\n" - "3: br 1b\n" - ".previous" - : "=&r"(prev), "=&r"(cmp), "=m"(*m) - : "r"((long) old), "r"(new), "m"(*m) : "memory"); - - return prev; -} - -/* This function doesn't exist, so you'll get a linker error - if something tries to do an invalid cmpxchg(). */ -extern void __cmpxchg_called_with_bad_pointer(void); - -static __always_inline unsigned long -____cmpxchg(, volatile void *ptr, unsigned long old, unsigned long new, - int size) -{ - switch (size) { - case 1: - return ____cmpxchg(_u8, ptr, old, new); - case 2: - return ____cmpxchg(_u16, ptr, old, new); - case 4: - return ____cmpxchg(_u32, ptr, old, new); - case 8: - return ____cmpxchg(_u64, ptr, old, new); - } - __cmpxchg_called_with_bad_pointer(); - return old; -} - -#endif diff --git a/arch/alpha/include/asm/xor.h b/arch/alpha/include/asm/xor.h index 5ee1c2bc0499..e0de0c233ab9 100644 --- a/arch/alpha/include/asm/xor.h +++ b/arch/alpha/include/asm/xor.h @@ -1,36 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * include/asm-alpha/xor.h * * Optimized RAID-5 checksumming functions for alpha EV5 and EV6 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * You should have received a copy of the GNU General Public License - * (for example /usr/src/linux/COPYING); if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -extern void xor_alpha_2(unsigned long, unsigned long *, unsigned long *); -extern void xor_alpha_3(unsigned long, unsigned long *, unsigned long *, - unsigned long *); -extern void xor_alpha_4(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *); -extern void xor_alpha_5(unsigned long, unsigned long *, unsigned long *, - unsigned long *, unsigned long *, unsigned long *); +extern void +xor_alpha_2(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2); +extern void +xor_alpha_3(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2, + const unsigned long * __restrict p3); +extern void +xor_alpha_4(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2, + const unsigned long * __restrict p3, + const unsigned long * __restrict p4); +extern void +xor_alpha_5(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2, + const unsigned long * __restrict p3, + const unsigned long * __restrict p4, + const unsigned long * __restrict p5); -extern void xor_alpha_prefetch_2(unsigned long, unsigned long *, - unsigned long *); -extern void xor_alpha_prefetch_3(unsigned long, unsigned long *, - unsigned long *, unsigned long *); -extern void xor_alpha_prefetch_4(unsigned long, unsigned long *, - unsigned long *, unsigned long *, - unsigned long *); -extern void xor_alpha_prefetch_5(unsigned long, unsigned long *, - unsigned long *, unsigned long *, - unsigned long *, unsigned long *); +extern void +xor_alpha_prefetch_2(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2); +extern void +xor_alpha_prefetch_3(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2, + const unsigned long * __restrict p3); +extern void +xor_alpha_prefetch_4(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2, + const unsigned long * __restrict p3, + const unsigned long * __restrict p4); +extern void +xor_alpha_prefetch_5(unsigned long bytes, unsigned long * __restrict p1, + const unsigned long * __restrict p2, + const unsigned long * __restrict p3, + const unsigned long * __restrict p4, + const unsigned long * __restrict p5); asm(" \n\ .text \n\ diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild index d96f2ef5b639..b97c552db3c5 100644 --- a/arch/alpha/include/uapi/asm/Kbuild +++ b/arch/alpha/include/uapi/asm/Kbuild @@ -1,43 +1,2 @@ -# UAPI Header export list -include include/uapi/asm-generic/Kbuild.asm - -header-y += a.out.h -header-y += auxvec.h -header-y += bitsperlong.h -header-y += byteorder.h -header-y += compiler.h -header-y += console.h -header-y += errno.h -header-y += fcntl.h -header-y += fpu.h -header-y += gentrap.h -header-y += ioctl.h -header-y += ioctls.h -header-y += ipcbuf.h -header-y += kvm_para.h -header-y += mman.h -header-y += msgbuf.h -header-y += pal.h -header-y += param.h -header-y += poll.h -header-y += posix_types.h -header-y += ptrace.h -header-y += reg.h -header-y += regdef.h -header-y += resource.h -header-y += sembuf.h -header-y += setup.h -header-y += shmbuf.h -header-y += sigcontext.h -header-y += siginfo.h -header-y += signal.h -header-y += socket.h -header-y += sockios.h -header-y += stat.h -header-y += statfs.h -header-y += swab.h -header-y += sysinfo.h -header-y += termbits.h -header-y += termios.h -header-y += types.h -header-y += unistd.h +# SPDX-License-Identifier: GPL-2.0 +generated-y += unistd_32.h diff --git a/arch/alpha/include/uapi/asm/a.out.h b/arch/alpha/include/uapi/asm/a.out.h index 547707246f63..7d692df04ba9 100644 --- a/arch/alpha/include/uapi/asm/a.out.h +++ b/arch/alpha/include/uapi/asm/a.out.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__ALPHA_A_OUT_H__ #define _UAPI__ALPHA_A_OUT_H__ diff --git a/arch/alpha/include/uapi/asm/auxvec.h b/arch/alpha/include/uapi/asm/auxvec.h index a3a579dfdb4d..57cae8780d81 100644 --- a/arch/alpha/include/uapi/asm/auxvec.h +++ b/arch/alpha/include/uapi/asm/auxvec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __ASM_ALPHA_AUXVEC_H #define __ASM_ALPHA_AUXVEC_H diff --git a/arch/alpha/include/uapi/asm/bitsperlong.h b/arch/alpha/include/uapi/asm/bitsperlong.h index ad57f7868203..6c5bf7d03f4e 100644 --- a/arch/alpha/include/uapi/asm/bitsperlong.h +++ b/arch/alpha/include/uapi/asm/bitsperlong.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __ASM_ALPHA_BITSPERLONG_H #define __ASM_ALPHA_BITSPERLONG_H diff --git a/arch/alpha/include/uapi/asm/byteorder.h b/arch/alpha/include/uapi/asm/byteorder.h index 73683093202d..efa9b51b4595 100644 --- a/arch/alpha/include/uapi/asm/byteorder.h +++ b/arch/alpha/include/uapi/asm/byteorder.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_BYTEORDER_H #define _ALPHA_BYTEORDER_H diff --git a/arch/alpha/include/uapi/asm/compiler.h b/arch/alpha/include/uapi/asm/compiler.h index 32cc7833f0c1..8c03740966b4 100644 --- a/arch/alpha/include/uapi/asm/compiler.h +++ b/arch/alpha/include/uapi/asm/compiler.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__ALPHA_COMPILER_H #define _UAPI__ALPHA_COMPILER_H @@ -94,24 +95,6 @@ #define __kernel_ldwu(mem) (mem) #define __kernel_stb(val,mem) ((mem) = (val)) #define __kernel_stw(val,mem) ((mem) = (val)) -#else -#define __kernel_ldbu(mem) \ - ({ unsigned char __kir; \ - __asm__(".arch ev56; \ - ldbu %0,%1" : "=r"(__kir) : "m"(mem)); \ - __kir; }) -#define __kernel_ldwu(mem) \ - ({ unsigned short __kir; \ - __asm__(".arch ev56; \ - ldwu %0,%1" : "=r"(__kir) : "m"(mem)); \ - __kir; }) -#define __kernel_stb(val,mem) \ - __asm__(".arch ev56; \ - stb %1,%0" : "=m"(mem) : "r"(val)) -#define __kernel_stw(val,mem) \ - __asm__(".arch ev56; \ - stw %1,%0" : "=m"(mem) : "r"(val)) #endif - #endif /* _UAPI__ALPHA_COMPILER_H */ diff --git a/arch/alpha/include/uapi/asm/console.h b/arch/alpha/include/uapi/asm/console.h index fd08a191f360..5fcb65300b56 100644 --- a/arch/alpha/include/uapi/asm/console.h +++ b/arch/alpha/include/uapi/asm/console.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__AXP_CONSOLE_H #define _UAPI__AXP_CONSOLE_H diff --git a/arch/alpha/include/uapi/asm/errno.h b/arch/alpha/include/uapi/asm/errno.h index e5f29ca28180..3d265f6babaf 100644 --- a/arch/alpha/include/uapi/asm/errno.h +++ b/arch/alpha/include/uapi/asm/errno.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_ERRNO_H #define _ALPHA_ERRNO_H @@ -43,7 +44,7 @@ #define EUSERS 68 /* Too many users */ #define EDQUOT 69 /* Quota exceeded */ -#define ESTALE 70 /* Stale NFS file handle */ +#define ESTALE 70 /* Stale file handle */ #define EREMOTE 71 /* Object is remote */ #define ENOLCK 77 /* No record locks available */ diff --git a/arch/alpha/include/uapi/asm/fcntl.h b/arch/alpha/include/uapi/asm/fcntl.h index 09f49a6b87d1..50bdc8e8a271 100644 --- a/arch/alpha/include/uapi/asm/fcntl.h +++ b/arch/alpha/include/uapi/asm/fcntl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_FCNTL_H #define _ALPHA_FCNTL_H diff --git a/arch/alpha/include/uapi/asm/fpu.h b/arch/alpha/include/uapi/asm/fpu.h index 21a053ca2233..cea9eafa056f 100644 --- a/arch/alpha/include/uapi/asm/fpu.h +++ b/arch/alpha/include/uapi/asm/fpu.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__ASM_ALPHA_FPU_H #define _UAPI__ASM_ALPHA_FPU_H diff --git a/arch/alpha/include/uapi/asm/gentrap.h b/arch/alpha/include/uapi/asm/gentrap.h index ae50cc3192c7..c02ccc5ecec0 100644 --- a/arch/alpha/include/uapi/asm/gentrap.h +++ b/arch/alpha/include/uapi/asm/gentrap.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASMAXP_GENTRAP_H #define _ASMAXP_GENTRAP_H diff --git a/arch/alpha/include/uapi/asm/ioctl.h b/arch/alpha/include/uapi/asm/ioctl.h index fc63727f4178..a9d68a08ee84 100644 --- a/arch/alpha/include/uapi/asm/ioctl.h +++ b/arch/alpha/include/uapi/asm/ioctl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_IOCTL_H #define _ALPHA_IOCTL_H diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h index 92c557be49fc..971311605288 100644 --- a/arch/alpha/include/uapi/asm/ioctls.h +++ b/arch/alpha/include/uapi/asm/ioctls.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_ALPHA_IOCTLS_H #define _ASM_ALPHA_IOCTLS_H @@ -31,6 +32,11 @@ #define TCXONC _IO('t', 30) #define TCFLSH _IO('t', 31) +#define TCGETS2 _IOR('T', 42, struct termios2) +#define TCSETS2 _IOW('T', 43, struct termios2) +#define TCSETSW2 _IOW('T', 44, struct termios2) +#define TCSETSF2 _IOW('T', 45, struct termios2) + #define TIOCSWINSZ _IOW('t', 103, struct winsize) #define TIOCGWINSZ _IOR('t', 104, struct winsize) #define TIOCSTART _IO('t', 110) /* start output, like ^Q */ @@ -90,6 +96,8 @@ #define TIOCSBRK 0x5427 /* BSD compatibility */ #define TIOCCBRK 0x5428 /* BSD compatibility */ #define TIOCGSID 0x5429 /* Return the session ID of FD */ +#define TIOCGRS485 _IOR('T', 0x2E, struct serial_rs485) +#define TIOCSRS485 _IOWR('T', 0x2F, struct serial_rs485) #define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ #define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ #define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */ @@ -98,6 +106,9 @@ #define TIOCGPKT _IOR('T', 0x38, int) /* Get packet mode state */ #define TIOCGPTLCK _IOR('T', 0x39, int) /* Get Pty lock state */ #define TIOCGEXCL _IOR('T', 0x40, int) /* Get exclusive mode state */ +#define TIOCGPTPEER _IO('T', 0x41) /* Safely open the slave */ +#define TIOCGISO7816 _IOR('T', 0x42, struct serial_iso7816) +#define TIOCSISO7816 _IOWR('T', 0x43, struct serial_iso7816) #define TIOCSERCONFIG 0x5453 #define TIOCSERGWILD 0x5454 diff --git a/arch/alpha/include/uapi/asm/ipcbuf.h b/arch/alpha/include/uapi/asm/ipcbuf.h deleted file mode 100644 index 84c7e51cb6d0..000000000000 --- a/arch/alpha/include/uapi/asm/ipcbuf.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/ipcbuf.h> diff --git a/arch/alpha/include/uapi/asm/kvm_para.h b/arch/alpha/include/uapi/asm/kvm_para.h deleted file mode 100644 index 14fab8f0b957..000000000000 --- a/arch/alpha/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/kvm_para.h> diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h index 0086b472bc2b..1e700468a685 100644 --- a/arch/alpha/include/uapi/asm/mman.h +++ b/arch/alpha/include/uapi/asm/mman.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __ALPHA_MMAN_H__ #define __ALPHA_MMAN_H__ @@ -9,8 +10,7 @@ #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ -#define MAP_SHARED 0x01 /* Share changes */ -#define MAP_PRIVATE 0x02 /* Changes are private */ +/* 0x01 - 0x03 are defined in linux/mman.h */ #define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */ #define MAP_FIXED 0x100 /* Interpret addr exactly */ #define MAP_ANONYMOUS 0x10 /* don't use a file */ @@ -30,6 +30,7 @@ #define MAP_NONBLOCK 0x40000 /* do not block on IO */ #define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */ #define MAP_HUGETLB 0x100000 /* create a huge page mapping */ +#define MAP_FIXED_NOREPLACE 0x200000/* MAP_FIXED which doesn't unmap underlying mapping */ #define MS_ASYNC 1 /* sync memory asynchronously */ #define MS_SYNC 2 /* synchronous memory sync */ @@ -37,6 +38,9 @@ #define MCL_CURRENT 8192 /* lock all currently mapped pages */ #define MCL_FUTURE 16384 /* lock all additions to address space */ +#define MCL_ONFAULT 32768 /* lock all pages that are faulted in */ + +#define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ #define MADV_NORMAL 0 /* no further special treatment */ #define MADV_RANDOM 1 /* expect random page references */ @@ -46,6 +50,7 @@ #define MADV_DONTNEED 6 /* don't need these pages */ /* common/generic parameters */ +#define MADV_FREE 8 /* free pages only if memory pressure */ #define MADV_REMOVE 9 /* remove these pages & resources */ #define MADV_DONTFORK 10 /* don't inherit across fork */ #define MADV_DOFORK 11 /* do inherit across fork */ @@ -60,18 +65,28 @@ overrides the coredump filter bits */ #define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */ +#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */ +#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */ + +#define MADV_COLD 20 /* deactivate these pages */ +#define MADV_PAGEOUT 21 /* reclaim these pages */ + +#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */ +#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */ + +#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */ + +#define MADV_COLLAPSE 25 /* Synchronous hugepage collapse */ + +#define MADV_GUARD_INSTALL 102 /* fatal signal on access to range */ +#define MADV_GUARD_REMOVE 103 /* unguard range */ + /* compatibility flags */ #define MAP_FILE 0 -/* - * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. - * This gives us 6 bits, which is enough until someone invents 128 bit address - * spaces. - * - * Assume these are all power of twos. - * When 0 use the default page size. - */ -#define MAP_HUGE_SHIFT 26 -#define MAP_HUGE_MASK 0x3f +#define PKEY_DISABLE_ACCESS 0x1 +#define PKEY_DISABLE_WRITE 0x2 +#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ + PKEY_DISABLE_WRITE) #endif /* __ALPHA_MMAN_H__ */ diff --git a/arch/alpha/include/uapi/asm/msgbuf.h b/arch/alpha/include/uapi/asm/msgbuf.h deleted file mode 100644 index 98496501a2bb..000000000000 --- a/arch/alpha/include/uapi/asm/msgbuf.h +++ /dev/null @@ -1,27 +0,0 @@ -#ifndef _ALPHA_MSGBUF_H -#define _ALPHA_MSGBUF_H - -/* - * The msqid64_ds structure for alpha architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ - __kernel_time_t msg_rtime; /* last msgrcv time */ - __kernel_time_t msg_ctime; /* last change time */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _ALPHA_MSGBUF_H */ diff --git a/arch/alpha/include/uapi/asm/pal.h b/arch/alpha/include/uapi/asm/pal.h index 3c0ce08e5f59..7427e028db64 100644 --- a/arch/alpha/include/uapi/asm/pal.h +++ b/arch/alpha/include/uapi/asm/pal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI__ALPHA_PAL_H #define _UAPI__ALPHA_PAL_H @@ -46,6 +47,7 @@ #define PAL_rdusp 58 #define PAL_whami 60 #define PAL_retsys 61 +#define PAL_wtint 62 #define PAL_rti 63 diff --git a/arch/alpha/include/uapi/asm/param.h b/arch/alpha/include/uapi/asm/param.h index 29daed819ebd..e4e410f9bf85 100644 --- a/arch/alpha/include/uapi/asm/param.h +++ b/arch/alpha/include/uapi/asm/param.h @@ -1,21 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ASM_ALPHA_PARAM_H #define _UAPI_ASM_ALPHA_PARAM_H -/* ??? Gross. I don't want to parameterize this, and supposedly the - hardware ignores reprogramming. We also need userland buy-in to the - change in HZ, since this is visible in the wait4 resources etc. */ - -#ifndef __KERNEL__ -#define HZ 1024 -#endif - +#define __USER_HZ 1024 #define EXEC_PAGESIZE 8192 -#ifndef NOGROUP -#define NOGROUP (-1) -#endif - -#define MAXHOSTNAMELEN 64 /* max length of hostname */ - +#include <asm-generic/param.h> #endif /* _UAPI_ASM_ALPHA_PARAM_H */ diff --git a/arch/alpha/include/uapi/asm/poll.h b/arch/alpha/include/uapi/asm/poll.h deleted file mode 100644 index c98509d3149e..000000000000 --- a/arch/alpha/include/uapi/asm/poll.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/poll.h> diff --git a/arch/alpha/include/uapi/asm/posix_types.h b/arch/alpha/include/uapi/asm/posix_types.h index 5a8a48320efe..04f1ea57505b 100644 --- a/arch/alpha/include/uapi/asm/posix_types.h +++ b/arch/alpha/include/uapi/asm/posix_types.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_POSIX_TYPES_H #define _ALPHA_POSIX_TYPES_H diff --git a/arch/alpha/include/uapi/asm/ptrace.h b/arch/alpha/include/uapi/asm/ptrace.h index 5ce83fa9a05b..72ed913a910f 100644 --- a/arch/alpha/include/uapi/asm/ptrace.h +++ b/arch/alpha/include/uapi/asm/ptrace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ASMAXP_PTRACE_H #define _UAPI_ASMAXP_PTRACE_H @@ -7,7 +8,7 @@ * kernel stack during a system call or other kernel entry * * NOTE! I want to minimize the overhead of system calls, so this - * struct has as little information as possible. I does not have + * struct has as little information as possible. It does not have * * - floating point regs: the kernel doesn't change those * - r9-15: saved by the C compiler @@ -41,6 +42,8 @@ struct pt_regs { unsigned long trap_a0; unsigned long trap_a1; unsigned long trap_a2; +/* This makes the stack 16-byte aligned as GCC expects */ + unsigned long __pad0; /* These are saved by PAL-code: */ unsigned long ps; unsigned long pc; @@ -63,7 +66,9 @@ struct switch_stack { unsigned long r14; unsigned long r15; unsigned long r26; +#ifndef __KERNEL__ unsigned long fp[32]; /* fp[31] is fpcr */ +#endif }; diff --git a/arch/alpha/include/uapi/asm/reg.h b/arch/alpha/include/uapi/asm/reg.h index 86ff916fb069..2652f3a385f7 100644 --- a/arch/alpha/include/uapi/asm/reg.h +++ b/arch/alpha/include/uapi/asm/reg.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __reg_h__ #define __reg_h__ diff --git a/arch/alpha/include/uapi/asm/regdef.h b/arch/alpha/include/uapi/asm/regdef.h index 142df9c4f8b8..cc99df0c60a5 100644 --- a/arch/alpha/include/uapi/asm/regdef.h +++ b/arch/alpha/include/uapi/asm/regdef.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __alpha_regdef_h__ #define __alpha_regdef_h__ diff --git a/arch/alpha/include/uapi/asm/resource.h b/arch/alpha/include/uapi/asm/resource.h index c10874ff5973..362423ffe10b 100644 --- a/arch/alpha/include/uapi/asm/resource.h +++ b/arch/alpha/include/uapi/asm/resource.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_RESOURCE_H #define _ALPHA_RESOURCE_H diff --git a/arch/alpha/include/uapi/asm/sembuf.h b/arch/alpha/include/uapi/asm/sembuf.h deleted file mode 100644 index 7b38b1534784..000000000000 --- a/arch/alpha/include/uapi/asm/sembuf.h +++ /dev/null @@ -1,22 +0,0 @@ -#ifndef _ALPHA_SEMBUF_H -#define _ALPHA_SEMBUF_H - -/* - * The semid64_ds structure for alpha architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ - __kernel_time_t sem_ctime; /* last change time */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _ALPHA_SEMBUF_H */ diff --git a/arch/alpha/include/uapi/asm/setup.h b/arch/alpha/include/uapi/asm/setup.h index b50014b30909..f881ea5947cb 100644 --- a/arch/alpha/include/uapi/asm/setup.h +++ b/arch/alpha/include/uapi/asm/setup.h @@ -1,42 +1,7 @@ -#ifndef __ALPHA_SETUP_H -#define __ALPHA_SETUP_H +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _UAPI__ALPHA_SETUP_H +#define _UAPI__ALPHA_SETUP_H #define COMMAND_LINE_SIZE 256 -/* - * We leave one page for the initial stack page, and one page for - * the initial process structure. Also, the console eats 3 MB for - * the initial bootloader (one of which we can reclaim later). - */ -#define BOOT_PCB 0x20000000 -#define BOOT_ADDR 0x20000000 -/* Remove when official MILO sources have ELF support: */ -#define BOOT_SIZE (16*1024) - -#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS -#define KERNEL_START_PHYS 0x300000 /* Old bootloaders hardcoded this. */ -#else -#define KERNEL_START_PHYS 0x1000000 /* required: Wildfire/Titan/Marvel */ -#endif - -#define KERNEL_START (PAGE_OFFSET+KERNEL_START_PHYS) -#define SWAPPER_PGD KERNEL_START -#define INIT_STACK (PAGE_OFFSET+KERNEL_START_PHYS+0x02000) -#define EMPTY_PGT (PAGE_OFFSET+KERNEL_START_PHYS+0x04000) -#define EMPTY_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x08000) -#define ZERO_PGE (PAGE_OFFSET+KERNEL_START_PHYS+0x0A000) - -#define START_ADDR (PAGE_OFFSET+KERNEL_START_PHYS+0x10000) - -/* - * This is setup by the secondary bootstrap loader. Because - * the zero page is zeroed out as soon as the vm system is - * initialized, we need to copy things out into a more permanent - * place. - */ -#define PARAM ZERO_PGE -#define COMMAND_LINE ((char*)(PARAM + 0x0000)) -#define INITRD_START (*(unsigned long *) (PARAM+0x100)) -#define INITRD_SIZE (*(unsigned long *) (PARAM+0x108)) - -#endif +#endif /* _UAPI__ALPHA_SETUP_H */ diff --git a/arch/alpha/include/uapi/asm/shmbuf.h b/arch/alpha/include/uapi/asm/shmbuf.h deleted file mode 100644 index 37ee84f05085..000000000000 --- a/arch/alpha/include/uapi/asm/shmbuf.h +++ /dev/null @@ -1,38 +0,0 @@ -#ifndef _ALPHA_SHMBUF_H -#define _ALPHA_SHMBUF_H - -/* - * The shmid64_ds structure for alpha architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - __kernel_time_t shm_dtime; /* last detach time */ - __kernel_time_t shm_ctime; /* last change time */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused1; - unsigned long __unused2; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _ALPHA_SHMBUF_H */ diff --git a/arch/alpha/include/uapi/asm/sigcontext.h b/arch/alpha/include/uapi/asm/sigcontext.h index 323cdb026198..5428c42567e6 100644 --- a/arch/alpha/include/uapi/asm/sigcontext.h +++ b/arch/alpha/include/uapi/asm/sigcontext.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASMAXP_SIGCONTEXT_H #define _ASMAXP_SIGCONTEXT_H diff --git a/arch/alpha/include/uapi/asm/siginfo.h b/arch/alpha/include/uapi/asm/siginfo.h index 9822362a8424..e08eae88182b 100644 --- a/arch/alpha/include/uapi/asm/siginfo.h +++ b/arch/alpha/include/uapi/asm/siginfo.h @@ -1,9 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_SIGINFO_H #define _ALPHA_SIGINFO_H -#define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) -#define __ARCH_SI_TRAPNO - #include <asm-generic/siginfo.h> #endif diff --git a/arch/alpha/include/uapi/asm/signal.h b/arch/alpha/include/uapi/asm/signal.h index dd4ca4bcbb4a..1413075f7616 100644 --- a/arch/alpha/include/uapi/asm/signal.h +++ b/arch/alpha/include/uapi/asm/signal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ASMAXP_SIGNAL_H #define _UAPI_ASMAXP_SIGNAL_H @@ -59,20 +60,6 @@ typedef unsigned long sigset_t; #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ - #define SA_ONSTACK 0x00000001 #define SA_RESTART 0x00000002 #define SA_NOCLDSTOP 0x00000004 @@ -113,7 +100,7 @@ struct sigaction { typedef struct sigaltstack { void __user *ss_sp; int ss_flags; - size_t ss_size; + __kernel_size_t ss_size; } stack_t; /* sigstack(2) is deprecated, and will be withdrawn in a future version diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index 467de010ea7e..5ef57f88df6b 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -1,6 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ASM_SOCKET_H #define _UAPI_ASM_SOCKET_H +#include <linux/posix_types.h> #include <asm/sockios.h> /* For setsockopt(2) */ @@ -29,8 +31,8 @@ #define SO_RCVBUFFORCE 0x100b #define SO_RCVLOWAT 0x1010 #define SO_SNDLOWAT 0x1011 -#define SO_RCVTIMEO 0x1012 -#define SO_SNDTIMEO 0x1013 +#define SO_RCVTIMEO_OLD 0x1012 +#define SO_SNDTIMEO_OLD 0x1013 #define SO_ACCEPTCONN 0x1014 #define SO_PROTOCOL 0x1028 #define SO_DOMAIN 0x1029 @@ -50,13 +52,9 @@ #define SO_GET_FILTER SO_ATTACH_FILTER #define SO_PEERNAME 28 -#define SO_TIMESTAMP 29 -#define SCM_TIMESTAMP SO_TIMESTAMP #define SO_PEERSEC 30 #define SO_PASSSEC 34 -#define SO_TIMESTAMPNS 35 -#define SCM_TIMESTAMPNS SO_TIMESTAMPNS /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 19 @@ -65,9 +63,6 @@ #define SO_MARK 36 -#define SO_TIMESTAMPING 37 -#define SCM_TIMESTAMPING SO_TIMESTAMPING - #define SO_RXQ_OVFL 40 #define SO_WIFI_STATUS 41 @@ -81,6 +76,107 @@ #define SO_SELECT_ERR_QUEUE 45 -#define SO_BUSY_POLL 46 +#define SO_BUSY_POLL 46 + +#define SO_MAX_PACING_RATE 47 + +#define SO_BPF_EXTENSIONS 48 + +#define SO_INCOMING_CPU 49 + +#define SO_ATTACH_BPF 50 +#define SO_DETACH_BPF SO_DETACH_FILTER + +#define SO_ATTACH_REUSEPORT_CBPF 51 +#define SO_ATTACH_REUSEPORT_EBPF 52 + +#define SO_CNX_ADVICE 53 + +#define SCM_TIMESTAMPING_OPT_STATS 54 + +#define SO_MEMINFO 55 + +#define SO_INCOMING_NAPI_ID 56 + +#define SO_COOKIE 57 + +#define SCM_TIMESTAMPING_PKTINFO 58 + +#define SO_PEERGROUPS 59 + +#define SO_ZEROCOPY 60 + +#define SO_TXTIME 61 +#define SCM_TXTIME SO_TXTIME + +#define SO_BINDTOIFINDEX 62 + +#define SO_TIMESTAMP_OLD 29 +#define SO_TIMESTAMPNS_OLD 35 +#define SO_TIMESTAMPING_OLD 37 + +#define SO_TIMESTAMP_NEW 63 +#define SO_TIMESTAMPNS_NEW 64 +#define SO_TIMESTAMPING_NEW 65 + +#define SO_RCVTIMEO_NEW 66 +#define SO_SNDTIMEO_NEW 67 + +#define SO_DETACH_REUSEPORT_BPF 68 + +#define SO_PREFER_BUSY_POLL 69 +#define SO_BUSY_POLL_BUDGET 70 + +#define SO_NETNS_COOKIE 71 + +#define SO_BUF_LOCK 72 + +#define SO_RESERVE_MEM 73 + +#define SO_TXREHASH 74 + +#define SO_RCVMARK 75 + +#define SO_PASSPIDFD 76 +#define SO_PEERPIDFD 77 + +#define SO_DEVMEM_LINEAR 78 +#define SCM_DEVMEM_LINEAR SO_DEVMEM_LINEAR +#define SO_DEVMEM_DMABUF 79 +#define SCM_DEVMEM_DMABUF SO_DEVMEM_DMABUF +#define SO_DEVMEM_DONTNEED 80 + +#define SCM_TS_OPT_ID 81 + +#define SO_RCVPRIORITY 82 + +#define SO_PASSRIGHTS 83 + +#define SO_INQ 84 +#define SCM_INQ SO_INQ + +#if !defined(__KERNEL__) + +#if __BITS_PER_LONG == 64 +#define SO_TIMESTAMP SO_TIMESTAMP_OLD +#define SO_TIMESTAMPNS SO_TIMESTAMPNS_OLD +#define SO_TIMESTAMPING SO_TIMESTAMPING_OLD + +#define SO_RCVTIMEO SO_RCVTIMEO_OLD +#define SO_SNDTIMEO SO_SNDTIMEO_OLD +#else +#define SO_TIMESTAMP (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMP_OLD : SO_TIMESTAMP_NEW) +#define SO_TIMESTAMPNS (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPNS_OLD : SO_TIMESTAMPNS_NEW) +#define SO_TIMESTAMPING (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_TIMESTAMPING_OLD : SO_TIMESTAMPING_NEW) + +#define SO_RCVTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_RCVTIMEO_OLD : SO_RCVTIMEO_NEW) +#define SO_SNDTIMEO (sizeof(time_t) == sizeof(__kernel_long_t) ? SO_SNDTIMEO_OLD : SO_SNDTIMEO_NEW) +#endif + +#define SCM_TIMESTAMP SO_TIMESTAMP +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS +#define SCM_TIMESTAMPING SO_TIMESTAMPING + +#endif #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/alpha/include/uapi/asm/sockios.h b/arch/alpha/include/uapi/asm/sockios.h index 7932c7ab4a4d..af92bc27c3be 100644 --- a/arch/alpha/include/uapi/asm/sockios.h +++ b/arch/alpha/include/uapi/asm/sockios.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_ALPHA_SOCKIOS_H #define _ASM_ALPHA_SOCKIOS_H @@ -10,7 +11,7 @@ #define SIOCSPGRP _IOW('s', 8, pid_t) #define SIOCGPGRP _IOR('s', 9, pid_t) -#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */ -#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ +#define SIOCGSTAMP_OLD 0x8906 /* Get stamp (timeval) */ +#define SIOCGSTAMPNS_OLD 0x8907 /* Get stamp (timespec) */ #endif /* _ASM_ALPHA_SOCKIOS_H */ diff --git a/arch/alpha/include/uapi/asm/stat.h b/arch/alpha/include/uapi/asm/stat.h index 07ad3e6b3f3e..3f454fbd307a 100644 --- a/arch/alpha/include/uapi/asm/stat.h +++ b/arch/alpha/include/uapi/asm/stat.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_STAT_H #define _ALPHA_STAT_H diff --git a/arch/alpha/include/uapi/asm/statfs.h b/arch/alpha/include/uapi/asm/statfs.h index ccd2e186bfd8..95852a4f576d 100644 --- a/arch/alpha/include/uapi/asm/statfs.h +++ b/arch/alpha/include/uapi/asm/statfs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_STATFS_H #define _ALPHA_STATFS_H diff --git a/arch/alpha/include/uapi/asm/swab.h b/arch/alpha/include/uapi/asm/swab.h index 4d682b16c7c4..1cc70d2727f7 100644 --- a/arch/alpha/include/uapi/asm/swab.h +++ b/arch/alpha/include/uapi/asm/swab.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_SWAB_H #define _ALPHA_SWAB_H diff --git a/arch/alpha/include/uapi/asm/sysinfo.h b/arch/alpha/include/uapi/asm/sysinfo.h index 0b80e79d75e5..188ea76c7f2f 100644 --- a/arch/alpha/include/uapi/asm/sysinfo.h +++ b/arch/alpha/include/uapi/asm/sysinfo.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * include/asm-alpha/sysinfo.h */ diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h index 879dd3589921..f1290b22072b 100644 --- a/arch/alpha/include/uapi/asm/termbits.h +++ b/arch/alpha/include/uapi/asm/termbits.h @@ -1,10 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ALPHA_TERMBITS_H #define _ALPHA_TERMBITS_H -#include <linux/posix_types.h> +#include <asm-generic/termbits-common.h> -typedef unsigned char cc_t; -typedef unsigned int speed_t; typedef unsigned int tcflag_t; /* @@ -25,6 +24,19 @@ struct termios { speed_t c_ospeed; /* output speed */ }; +/* Alpha has identical termios and termios2 */ + +struct termios2 { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_cc[NCCS]; /* control characters */ + cc_t c_line; /* line discipline (== c_cc[19]) */ + speed_t c_ispeed; /* input speed */ + speed_t c_ospeed; /* output speed */ +}; + /* Alpha has matching termios and ktermios */ struct ktermios { @@ -39,130 +51,95 @@ struct ktermios { }; /* c_cc characters */ -#define VEOF 0 -#define VEOL 1 -#define VEOL2 2 -#define VERASE 3 -#define VWERASE 4 -#define VKILL 5 -#define VREPRINT 6 -#define VSWTC 7 -#define VINTR 8 -#define VQUIT 9 -#define VSUSP 10 -#define VSTART 12 -#define VSTOP 13 -#define VLNEXT 14 -#define VDISCARD 15 -#define VMIN 16 -#define VTIME 17 +#define VEOF 0 +#define VEOL 1 +#define VEOL2 2 +#define VERASE 3 +#define VWERASE 4 +#define VKILL 5 +#define VREPRINT 6 +#define VSWTC 7 +#define VINTR 8 +#define VQUIT 9 +#define VSUSP 10 +#define VSTART 12 +#define VSTOP 13 +#define VLNEXT 14 +#define VDISCARD 15 +#define VMIN 16 +#define VTIME 17 /* c_iflag bits */ -#define IGNBRK 0000001 -#define BRKINT 0000002 -#define IGNPAR 0000004 -#define PARMRK 0000010 -#define INPCK 0000020 -#define ISTRIP 0000040 -#define INLCR 0000100 -#define IGNCR 0000200 -#define ICRNL 0000400 -#define IXON 0001000 -#define IXOFF 0002000 -#define IXANY 0004000 -#define IUCLC 0010000 -#define IMAXBEL 0020000 -#define IUTF8 0040000 +#define IXON 0x0200 +#define IXOFF 0x0400 +#define IUCLC 0x1000 +#define IMAXBEL 0x2000 +#define IUTF8 0x4000 /* c_oflag bits */ -#define OPOST 0000001 -#define ONLCR 0000002 -#define OLCUC 0000004 - -#define OCRNL 0000010 -#define ONOCR 0000020 -#define ONLRET 0000040 - -#define OFILL 00000100 -#define OFDEL 00000200 -#define NLDLY 00001400 -#define NL0 00000000 -#define NL1 00000400 -#define NL2 00001000 -#define NL3 00001400 -#define TABDLY 00006000 -#define TAB0 00000000 -#define TAB1 00002000 -#define TAB2 00004000 -#define TAB3 00006000 -#define CRDLY 00030000 -#define CR0 00000000 -#define CR1 00010000 -#define CR2 00020000 -#define CR3 00030000 -#define FFDLY 00040000 -#define FF0 00000000 -#define FF1 00040000 -#define BSDLY 00100000 -#define BS0 00000000 -#define BS1 00100000 -#define VTDLY 00200000 -#define VT0 00000000 -#define VT1 00200000 -#define XTABS 01000000 /* Hmm.. Linux/i386 considers this part of TABDLY.. */ +#define ONLCR 0x00002 +#define OLCUC 0x00004 +#define NLDLY 0x00300 +#define NL0 0x00000 +#define NL1 0x00100 +#define NL2 0x00200 +#define NL3 0x00300 +#define TABDLY 0x00c00 +#define TAB0 0x00000 +#define TAB1 0x00400 +#define TAB2 0x00800 +#define TAB3 0x00c00 +#define CRDLY 0x03000 +#define CR0 0x00000 +#define CR1 0x01000 +#define CR2 0x02000 +#define CR3 0x03000 +#define FFDLY 0x04000 +#define FF0 0x00000 +#define FF1 0x04000 +#define BSDLY 0x08000 +#define BS0 0x00000 +#define BS1 0x08000 +#define VTDLY 0x10000 +#define VT0 0x00000 +#define VT1 0x10000 +/* + * Should be equivalent to TAB3, see description of TAB3 in + * POSIX.1-2008, Ch. 11.2.3 "Output Modes" + */ +#define XTABS TAB3 /* c_cflag bit meaning */ -#define CBAUD 0000037 -#define B0 0000000 /* hang up */ -#define B50 0000001 -#define B75 0000002 -#define B110 0000003 -#define B134 0000004 -#define B150 0000005 -#define B200 0000006 -#define B300 0000007 -#define B600 0000010 -#define B1200 0000011 -#define B1800 0000012 -#define B2400 0000013 -#define B4800 0000014 -#define B9600 0000015 -#define B19200 0000016 -#define B38400 0000017 -#define EXTA B19200 -#define EXTB B38400 -#define CBAUDEX 0000000 -#define B57600 00020 -#define B115200 00021 -#define B230400 00022 -#define B460800 00023 -#define B500000 00024 -#define B576000 00025 -#define B921600 00026 -#define B1000000 00027 -#define B1152000 00030 -#define B1500000 00031 -#define B2000000 00032 -#define B2500000 00033 -#define B3000000 00034 -#define B3500000 00035 -#define B4000000 00036 - -#define CSIZE 00001400 -#define CS5 00000000 -#define CS6 00000400 -#define CS7 00001000 -#define CS8 00001400 - -#define CSTOPB 00002000 -#define CREAD 00004000 -#define PARENB 00010000 -#define PARODD 00020000 -#define HUPCL 00040000 - -#define CLOCAL 00100000 -#define CMSPAR 010000000000 /* mark or space (stick) parity */ -#define CRTSCTS 020000000000 /* flow control */ +#define CBAUD 0x0000001f +#define CBAUDEX 0x00000000 +#define BOTHER 0x0000001f +#define B57600 0x00000010 +#define B115200 0x00000011 +#define B230400 0x00000012 +#define B460800 0x00000013 +#define B500000 0x00000014 +#define B576000 0x00000015 +#define B921600 0x00000016 +#define B1000000 0x00000017 +#define B1152000 0x00000018 +#define B1500000 0x00000019 +#define B2000000 0x0000001a +#define B2500000 0x0000001b +#define B3000000 0x0000001c +#define B3500000 0x0000001d +#define B4000000 0x0000001e +#define CSIZE 0x00000300 +#define CS5 0x00000000 +#define CS6 0x00000100 +#define CS7 0x00000200 +#define CS8 0x00000300 +#define CSTOPB 0x00000400 +#define CREAD 0x00000800 +#define PARENB 0x00001000 +#define PARODD 0x00002000 +#define HUPCL 0x00004000 +#define CLOCAL 0x00008000 +#define CIBAUD 0x001f0000 /* c_lflag bits */ #define ISIG 0x00000080 @@ -182,17 +159,6 @@ struct ktermios { #define IEXTEN 0x00000400 #define EXTPROC 0x10000000 -/* Values for the ACTION argument to `tcflow'. */ -#define TCOOFF 0 -#define TCOON 1 -#define TCIOFF 2 -#define TCION 3 - -/* Values for the QUEUE_SELECTOR argument to `tcflush'. */ -#define TCIFLUSH 0 -#define TCOFLUSH 1 -#define TCIOFLUSH 2 - /* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'. */ #define TCSANOW 0 #define TCSADRAIN 1 diff --git a/arch/alpha/include/uapi/asm/termios.h b/arch/alpha/include/uapi/asm/termios.h index 580ed1e4854c..e1b981222a24 100644 --- a/arch/alpha/include/uapi/asm/termios.h +++ b/arch/alpha/include/uapi/asm/termios.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ALPHA_TERMIOS_H #define _UAPI_ALPHA_TERMIOS_H diff --git a/arch/alpha/include/uapi/asm/types.h b/arch/alpha/include/uapi/asm/types.h index 9fd3cd459777..6c3d49938126 100644 --- a/arch/alpha/include/uapi/asm/types.h +++ b/arch/alpha/include/uapi/asm/types.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ALPHA_TYPES_H #define _UAPI_ALPHA_TYPES_H @@ -9,8 +10,18 @@ * need to be careful to avoid a name clashes. */ -#ifndef __KERNEL__ +/* + * This is here because we used to use l64 for alpha + * and we don't want to impact user mode with our change to ll64 + * in the kernel. + * + * However, some user programs are fine with this. They can + * flag __SANE_USERSPACE_TYPES__ to get int-ll64.h here. + */ +#if !defined(__SANE_USERSPACE_TYPES__) && !defined(__KERNEL__) #include <asm-generic/int-l64.h> +#else +#include <asm-generic/int-ll64.h> #endif #endif /* _UAPI_ALPHA_TYPES_H */ diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h index 801d28bcea51..71fd5db06866 100644 --- a/arch/alpha/include/uapi/asm/unistd.h +++ b/arch/alpha/include/uapi/asm/unistd.h @@ -1,471 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_ALPHA_UNISTD_H #define _UAPI_ALPHA_UNISTD_H -#define __NR_osf_syscall 0 /* not implemented */ -#define __NR_exit 1 -#define __NR_fork 2 -#define __NR_read 3 -#define __NR_write 4 -#define __NR_osf_old_open 5 /* not implemented */ -#define __NR_close 6 -#define __NR_osf_wait4 7 -#define __NR_osf_old_creat 8 /* not implemented */ -#define __NR_link 9 -#define __NR_unlink 10 -#define __NR_osf_execve 11 /* not implemented */ -#define __NR_chdir 12 -#define __NR_fchdir 13 -#define __NR_mknod 14 -#define __NR_chmod 15 -#define __NR_chown 16 -#define __NR_brk 17 -#define __NR_osf_getfsstat 18 /* not implemented */ -#define __NR_lseek 19 -#define __NR_getxpid 20 -#define __NR_osf_mount 21 -#define __NR_umount 22 -#define __NR_setuid 23 -#define __NR_getxuid 24 -#define __NR_exec_with_loader 25 /* not implemented */ -#define __NR_ptrace 26 -#define __NR_osf_nrecvmsg 27 /* not implemented */ -#define __NR_osf_nsendmsg 28 /* not implemented */ -#define __NR_osf_nrecvfrom 29 /* not implemented */ -#define __NR_osf_naccept 30 /* not implemented */ -#define __NR_osf_ngetpeername 31 /* not implemented */ -#define __NR_osf_ngetsockname 32 /* not implemented */ -#define __NR_access 33 -#define __NR_osf_chflags 34 /* not implemented */ -#define __NR_osf_fchflags 35 /* not implemented */ -#define __NR_sync 36 -#define __NR_kill 37 -#define __NR_osf_old_stat 38 /* not implemented */ -#define __NR_setpgid 39 -#define __NR_osf_old_lstat 40 /* not implemented */ -#define __NR_dup 41 -#define __NR_pipe 42 -#define __NR_osf_set_program_attributes 43 -#define __NR_osf_profil 44 /* not implemented */ -#define __NR_open 45 -#define __NR_osf_old_sigaction 46 /* not implemented */ -#define __NR_getxgid 47 -#define __NR_osf_sigprocmask 48 -#define __NR_osf_getlogin 49 /* not implemented */ -#define __NR_osf_setlogin 50 /* not implemented */ -#define __NR_acct 51 -#define __NR_sigpending 52 +/* These are traditionally the names linux-alpha uses for + * the two otherwise generic system calls */ +#define __NR_umount __NR_umount2 +#define __NR_osf_shmat __NR_shmat -#define __NR_ioctl 54 -#define __NR_osf_reboot 55 /* not implemented */ -#define __NR_osf_revoke 56 /* not implemented */ -#define __NR_symlink 57 -#define __NR_readlink 58 -#define __NR_execve 59 -#define __NR_umask 60 -#define __NR_chroot 61 -#define __NR_osf_old_fstat 62 /* not implemented */ -#define __NR_getpgrp 63 -#define __NR_getpagesize 64 -#define __NR_osf_mremap 65 /* not implemented */ -#define __NR_vfork 66 -#define __NR_stat 67 -#define __NR_lstat 68 -#define __NR_osf_sbrk 69 /* not implemented */ -#define __NR_osf_sstk 70 /* not implemented */ -#define __NR_mmap 71 /* OSF/1 mmap is superset of Linux */ -#define __NR_osf_old_vadvise 72 /* not implemented */ -#define __NR_munmap 73 -#define __NR_mprotect 74 -#define __NR_madvise 75 -#define __NR_vhangup 76 -#define __NR_osf_kmodcall 77 /* not implemented */ -#define __NR_osf_mincore 78 /* not implemented */ -#define __NR_getgroups 79 -#define __NR_setgroups 80 -#define __NR_osf_old_getpgrp 81 /* not implemented */ -#define __NR_setpgrp 82 /* BSD alias for setpgid */ -#define __NR_osf_setitimer 83 -#define __NR_osf_old_wait 84 /* not implemented */ -#define __NR_osf_table 85 /* not implemented */ -#define __NR_osf_getitimer 86 -#define __NR_gethostname 87 -#define __NR_sethostname 88 -#define __NR_getdtablesize 89 -#define __NR_dup2 90 -#define __NR_fstat 91 -#define __NR_fcntl 92 -#define __NR_osf_select 93 -#define __NR_poll 94 -#define __NR_fsync 95 -#define __NR_setpriority 96 -#define __NR_socket 97 -#define __NR_connect 98 -#define __NR_accept 99 -#define __NR_getpriority 100 -#define __NR_send 101 -#define __NR_recv 102 -#define __NR_sigreturn 103 -#define __NR_bind 104 -#define __NR_setsockopt 105 -#define __NR_listen 106 -#define __NR_osf_plock 107 /* not implemented */ -#define __NR_osf_old_sigvec 108 /* not implemented */ -#define __NR_osf_old_sigblock 109 /* not implemented */ -#define __NR_osf_old_sigsetmask 110 /* not implemented */ -#define __NR_sigsuspend 111 -#define __NR_osf_sigstack 112 -#define __NR_recvmsg 113 -#define __NR_sendmsg 114 -#define __NR_osf_old_vtrace 115 /* not implemented */ -#define __NR_osf_gettimeofday 116 -#define __NR_osf_getrusage 117 -#define __NR_getsockopt 118 +/* These return an extra value but can be used as aliases */ +#define __NR_getpid __NR_getxpid +#define __NR_getuid __NR_getxuid +#define __NR_getgid __NR_getxgid -#define __NR_readv 120 -#define __NR_writev 121 -#define __NR_osf_settimeofday 122 -#define __NR_fchown 123 -#define __NR_fchmod 124 -#define __NR_recvfrom 125 -#define __NR_setreuid 126 -#define __NR_setregid 127 -#define __NR_rename 128 -#define __NR_truncate 129 -#define __NR_ftruncate 130 -#define __NR_flock 131 -#define __NR_setgid 132 -#define __NR_sendto 133 -#define __NR_shutdown 134 -#define __NR_socketpair 135 -#define __NR_mkdir 136 -#define __NR_rmdir 137 -#define __NR_osf_utimes 138 -#define __NR_osf_old_sigreturn 139 /* not implemented */ -#define __NR_osf_adjtime 140 /* not implemented */ -#define __NR_getpeername 141 -#define __NR_osf_gethostid 142 /* not implemented */ -#define __NR_osf_sethostid 143 /* not implemented */ -#define __NR_getrlimit 144 -#define __NR_setrlimit 145 -#define __NR_osf_old_killpg 146 /* not implemented */ -#define __NR_setsid 147 -#define __NR_quotactl 148 -#define __NR_osf_oldquota 149 /* not implemented */ -#define __NR_getsockname 150 - -#define __NR_osf_pid_block 153 /* not implemented */ -#define __NR_osf_pid_unblock 154 /* not implemented */ - -#define __NR_sigaction 156 -#define __NR_osf_sigwaitprim 157 /* not implemented */ -#define __NR_osf_nfssvc 158 /* not implemented */ -#define __NR_osf_getdirentries 159 -#define __NR_osf_statfs 160 -#define __NR_osf_fstatfs 161 - -#define __NR_osf_asynch_daemon 163 /* not implemented */ -#define __NR_osf_getfh 164 /* not implemented */ -#define __NR_osf_getdomainname 165 -#define __NR_setdomainname 166 - -#define __NR_osf_exportfs 169 /* not implemented */ - -#define __NR_osf_alt_plock 181 /* not implemented */ - -#define __NR_osf_getmnt 184 /* not implemented */ - -#define __NR_osf_alt_sigpending 187 /* not implemented */ -#define __NR_osf_alt_setsid 188 /* not implemented */ - -#define __NR_osf_swapon 199 -#define __NR_msgctl 200 -#define __NR_msgget 201 -#define __NR_msgrcv 202 -#define __NR_msgsnd 203 -#define __NR_semctl 204 -#define __NR_semget 205 -#define __NR_semop 206 -#define __NR_osf_utsname 207 -#define __NR_lchown 208 -#define __NR_osf_shmat 209 -#define __NR_shmctl 210 -#define __NR_shmdt 211 -#define __NR_shmget 212 -#define __NR_osf_mvalid 213 /* not implemented */ -#define __NR_osf_getaddressconf 214 /* not implemented */ -#define __NR_osf_msleep 215 /* not implemented */ -#define __NR_osf_mwakeup 216 /* not implemented */ -#define __NR_msync 217 -#define __NR_osf_signal 218 /* not implemented */ -#define __NR_osf_utc_gettime 219 /* not implemented */ -#define __NR_osf_utc_adjtime 220 /* not implemented */ - -#define __NR_osf_security 222 /* not implemented */ -#define __NR_osf_kloadcall 223 /* not implemented */ - -#define __NR_osf_stat 224 -#define __NR_osf_lstat 225 -#define __NR_osf_fstat 226 -#define __NR_osf_statfs64 227 -#define __NR_osf_fstatfs64 228 - -#define __NR_getpgid 233 -#define __NR_getsid 234 -#define __NR_sigaltstack 235 -#define __NR_osf_waitid 236 /* not implemented */ -#define __NR_osf_priocntlset 237 /* not implemented */ -#define __NR_osf_sigsendset 238 /* not implemented */ -#define __NR_osf_set_speculative 239 /* not implemented */ -#define __NR_osf_msfs_syscall 240 /* not implemented */ -#define __NR_osf_sysinfo 241 -#define __NR_osf_uadmin 242 /* not implemented */ -#define __NR_osf_fuser 243 /* not implemented */ -#define __NR_osf_proplist_syscall 244 -#define __NR_osf_ntp_adjtime 245 /* not implemented */ -#define __NR_osf_ntp_gettime 246 /* not implemented */ -#define __NR_osf_pathconf 247 /* not implemented */ -#define __NR_osf_fpathconf 248 /* not implemented */ - -#define __NR_osf_uswitch 250 /* not implemented */ -#define __NR_osf_usleep_thread 251 -#define __NR_osf_audcntl 252 /* not implemented */ -#define __NR_osf_audgen 253 /* not implemented */ -#define __NR_sysfs 254 -#define __NR_osf_subsys_info 255 /* not implemented */ -#define __NR_osf_getsysinfo 256 -#define __NR_osf_setsysinfo 257 -#define __NR_osf_afs_syscall 258 /* not implemented */ -#define __NR_osf_swapctl 259 /* not implemented */ -#define __NR_osf_memcntl 260 /* not implemented */ -#define __NR_osf_fdatasync 261 /* not implemented */ - -/* - * Ignore legacy syscalls that we don't use. - */ -#define __IGNORE_alarm -#define __IGNORE_creat -#define __IGNORE_getegid -#define __IGNORE_geteuid -#define __IGNORE_getgid -#define __IGNORE_getpid -#define __IGNORE_getppid -#define __IGNORE_getuid -#define __IGNORE_pause -#define __IGNORE_time -#define __IGNORE_utime -#define __IGNORE_umount2 - -/* - * Linux-specific system calls begin at 300 - */ -#define __NR_bdflush 300 -#define __NR_sethae 301 -#define __NR_mount 302 -#define __NR_old_adjtimex 303 -#define __NR_swapoff 304 -#define __NR_getdents 305 -#define __NR_create_module 306 -#define __NR_init_module 307 -#define __NR_delete_module 308 -#define __NR_get_kernel_syms 309 -#define __NR_syslog 310 -#define __NR_reboot 311 -#define __NR_clone 312 -#define __NR_uselib 313 -#define __NR_mlock 314 -#define __NR_munlock 315 -#define __NR_mlockall 316 -#define __NR_munlockall 317 -#define __NR_sysinfo 318 -#define __NR__sysctl 319 -/* 320 was sys_idle. */ -#define __NR_oldumount 321 -#define __NR_swapon 322 -#define __NR_times 323 -#define __NR_personality 324 -#define __NR_setfsuid 325 -#define __NR_setfsgid 326 -#define __NR_ustat 327 -#define __NR_statfs 328 -#define __NR_fstatfs 329 -#define __NR_sched_setparam 330 -#define __NR_sched_getparam 331 -#define __NR_sched_setscheduler 332 -#define __NR_sched_getscheduler 333 -#define __NR_sched_yield 334 -#define __NR_sched_get_priority_max 335 -#define __NR_sched_get_priority_min 336 -#define __NR_sched_rr_get_interval 337 -#define __NR_afs_syscall 338 -#define __NR_uname 339 -#define __NR_nanosleep 340 -#define __NR_mremap 341 -#define __NR_nfsservctl 342 -#define __NR_setresuid 343 -#define __NR_getresuid 344 -#define __NR_pciconfig_read 345 -#define __NR_pciconfig_write 346 -#define __NR_query_module 347 -#define __NR_prctl 348 -#define __NR_pread64 349 -#define __NR_pwrite64 350 -#define __NR_rt_sigreturn 351 -#define __NR_rt_sigaction 352 -#define __NR_rt_sigprocmask 353 -#define __NR_rt_sigpending 354 -#define __NR_rt_sigtimedwait 355 -#define __NR_rt_sigqueueinfo 356 -#define __NR_rt_sigsuspend 357 -#define __NR_select 358 -#define __NR_gettimeofday 359 -#define __NR_settimeofday 360 -#define __NR_getitimer 361 -#define __NR_setitimer 362 -#define __NR_utimes 363 -#define __NR_getrusage 364 -#define __NR_wait4 365 -#define __NR_adjtimex 366 -#define __NR_getcwd 367 -#define __NR_capget 368 -#define __NR_capset 369 -#define __NR_sendfile 370 -#define __NR_setresgid 371 -#define __NR_getresgid 372 -#define __NR_dipc 373 -#define __NR_pivot_root 374 -#define __NR_mincore 375 -#define __NR_pciconfig_iobase 376 -#define __NR_getdents64 377 -#define __NR_gettid 378 -#define __NR_readahead 379 -/* 380 is unused */ -#define __NR_tkill 381 -#define __NR_setxattr 382 -#define __NR_lsetxattr 383 -#define __NR_fsetxattr 384 -#define __NR_getxattr 385 -#define __NR_lgetxattr 386 -#define __NR_fgetxattr 387 -#define __NR_listxattr 388 -#define __NR_llistxattr 389 -#define __NR_flistxattr 390 -#define __NR_removexattr 391 -#define __NR_lremovexattr 392 -#define __NR_fremovexattr 393 -#define __NR_futex 394 -#define __NR_sched_setaffinity 395 -#define __NR_sched_getaffinity 396 -#define __NR_tuxcall 397 -#define __NR_io_setup 398 -#define __NR_io_destroy 399 -#define __NR_io_getevents 400 -#define __NR_io_submit 401 -#define __NR_io_cancel 402 -#define __NR_exit_group 405 -#define __NR_lookup_dcookie 406 -#define __NR_epoll_create 407 -#define __NR_epoll_ctl 408 -#define __NR_epoll_wait 409 -/* Feb 2007: These three sys_epoll defines shouldn't be here but culling - * them would break userspace apps ... we'll kill them off in 2010 :) */ -#define __NR_sys_epoll_create __NR_epoll_create -#define __NR_sys_epoll_ctl __NR_epoll_ctl -#define __NR_sys_epoll_wait __NR_epoll_wait -#define __NR_remap_file_pages 410 -#define __NR_set_tid_address 411 -#define __NR_restart_syscall 412 -#define __NR_fadvise64 413 -#define __NR_timer_create 414 -#define __NR_timer_settime 415 -#define __NR_timer_gettime 416 -#define __NR_timer_getoverrun 417 -#define __NR_timer_delete 418 -#define __NR_clock_settime 419 -#define __NR_clock_gettime 420 -#define __NR_clock_getres 421 -#define __NR_clock_nanosleep 422 -#define __NR_semtimedop 423 -#define __NR_tgkill 424 -#define __NR_stat64 425 -#define __NR_lstat64 426 -#define __NR_fstat64 427 -#define __NR_vserver 428 -#define __NR_mbind 429 -#define __NR_get_mempolicy 430 -#define __NR_set_mempolicy 431 -#define __NR_mq_open 432 -#define __NR_mq_unlink 433 -#define __NR_mq_timedsend 434 -#define __NR_mq_timedreceive 435 -#define __NR_mq_notify 436 -#define __NR_mq_getsetattr 437 -#define __NR_waitid 438 -#define __NR_add_key 439 -#define __NR_request_key 440 -#define __NR_keyctl 441 -#define __NR_ioprio_set 442 -#define __NR_ioprio_get 443 -#define __NR_inotify_init 444 -#define __NR_inotify_add_watch 445 -#define __NR_inotify_rm_watch 446 -#define __NR_fdatasync 447 -#define __NR_kexec_load 448 -#define __NR_migrate_pages 449 -#define __NR_openat 450 -#define __NR_mkdirat 451 -#define __NR_mknodat 452 -#define __NR_fchownat 453 -#define __NR_futimesat 454 -#define __NR_fstatat64 455 -#define __NR_unlinkat 456 -#define __NR_renameat 457 -#define __NR_linkat 458 -#define __NR_symlinkat 459 -#define __NR_readlinkat 460 -#define __NR_fchmodat 461 -#define __NR_faccessat 462 -#define __NR_pselect6 463 -#define __NR_ppoll 464 -#define __NR_unshare 465 -#define __NR_set_robust_list 466 -#define __NR_get_robust_list 467 -#define __NR_splice 468 -#define __NR_sync_file_range 469 -#define __NR_tee 470 -#define __NR_vmsplice 471 -#define __NR_move_pages 472 -#define __NR_getcpu 473 -#define __NR_epoll_pwait 474 -#define __NR_utimensat 475 -#define __NR_signalfd 476 -#define __NR_timerfd 477 -#define __NR_eventfd 478 -#define __NR_recvmmsg 479 -#define __NR_fallocate 480 -#define __NR_timerfd_create 481 -#define __NR_timerfd_settime 482 -#define __NR_timerfd_gettime 483 -#define __NR_signalfd4 484 -#define __NR_eventfd2 485 -#define __NR_epoll_create1 486 -#define __NR_dup3 487 -#define __NR_pipe2 488 -#define __NR_inotify_init1 489 -#define __NR_preadv 490 -#define __NR_pwritev 491 -#define __NR_rt_tgsigqueueinfo 492 -#define __NR_perf_event_open 493 -#define __NR_fanotify_init 494 -#define __NR_fanotify_mark 495 -#define __NR_prlimit64 496 -#define __NR_name_to_handle_at 497 -#define __NR_open_by_handle_at 498 -#define __NR_clock_adjtime 499 -#define __NR_syncfs 500 -#define __NR_setns 501 -#define __NR_accept4 502 -#define __NR_sendmmsg 503 -#define __NR_process_vm_readv 504 -#define __NR_process_vm_writev 505 +#include <asm/unistd_32.h> #endif /* _UAPI_ALPHA_UNISTD_H */ diff --git a/arch/alpha/kernel/.gitignore b/arch/alpha/kernel/.gitignore index c5f676c3c224..bbb90f92d051 100644 --- a/arch/alpha/kernel/.gitignore +++ b/arch/alpha/kernel/.gitignore @@ -1 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only vmlinux.lds diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile index 84ec46b38f7d..187cd8df2faf 100644 --- a/arch/alpha/kernel/Makefile +++ b/arch/alpha/kernel/Makefile @@ -1,14 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for the linux kernel. # -extra-y := head.o vmlinux.lds +always-$(KBUILD_BUILTIN) := vmlinux.lds asflags-y := $(KBUILD_CFLAGS) ccflags-y := -Wno-sign-compare -obj-y := entry.o traps.o process.o osf_sys.o irq.o \ +obj-y := head.o entry.o traps.o process.o osf_sys.o irq.o \ irq_alpha.o signal.o setup.o ptrace.o time.o \ - alpha_ksyms.o systbls.o err_common.o io.o + systbls.o err_common.o io.o bugs.o termios.o obj-$(CONFIG_VGA_HOSE) += console.o obj-$(CONFIG_SMP) += smp.o @@ -16,17 +17,19 @@ obj-$(CONFIG_PCI) += pci.o pci_iommu.o pci-sysfs.o obj-$(CONFIG_SRM_ENV) += srm_env.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_PERF_EVENTS) += perf_event.o +obj-$(CONFIG_RTC_DRV_ALPHA) += rtc.o +obj-$(CONFIG_AUDIT) += audit.o ifdef CONFIG_ALPHA_GENERIC -obj-y += core_apecs.o core_cia.o core_irongate.o core_lca.o \ +obj-y += core_cia.o core_irongate.o \ core_mcpcia.o core_polaris.o core_t2.o \ core_tsunami.o -obj-y += sys_alcor.o sys_cabriolet.o sys_dp264.o sys_eb64p.o sys_eiger.o \ - sys_jensen.o sys_miata.o sys_mikasa.o sys_nautilus.o \ +obj-y += sys_alcor.o sys_cabriolet.o sys_dp264.o sys_eiger.o \ + sys_miata.o sys_mikasa.o sys_nautilus.o \ sys_noritake.o sys_rawhide.o sys_ruffian.o sys_rx164.o \ - sys_sable.o sys_sio.o sys_sx164.o sys_takara.o + sys_sable.o sys_sx164.o sys_takara.o ifndef CONFIG_ALPHA_LEGACY_START_ADDRESS obj-y += core_marvel.o core_titan.o core_wildfire.o @@ -44,15 +47,9 @@ else # Misc support obj-$(CONFIG_ALPHA_SRM) += srmcons.o -ifdef CONFIG_BINFMT_AOUT -obj-y += binfmt_loader.o -endif - # Core logic support -obj-$(CONFIG_ALPHA_APECS) += core_apecs.o obj-$(CONFIG_ALPHA_CIA) += core_cia.o obj-$(CONFIG_ALPHA_IRONGATE) += core_irongate.o -obj-$(CONFIG_ALPHA_LCA) += core_lca.o obj-$(CONFIG_ALPHA_MARVEL) += core_marvel.o gct.o obj-$(CONFIG_ALPHA_MCPCIA) += core_mcpcia.o obj-$(CONFIG_ALPHA_POLARIS) += core_polaris.o @@ -63,12 +60,6 @@ obj-$(CONFIG_ALPHA_WILDFIRE) += core_wildfire.o # Board support obj-$(CONFIG_ALPHA_ALCOR) += sys_alcor.o irq_i8259.o irq_srm.o -obj-$(CONFIG_ALPHA_CABRIOLET) += sys_cabriolet.o irq_i8259.o irq_srm.o \ - pc873xx.o -obj-$(CONFIG_ALPHA_EB164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ - pc873xx.o -obj-$(CONFIG_ALPHA_EB66P) += sys_cabriolet.o irq_i8259.o irq_srm.o \ - pc873xx.o obj-$(CONFIG_ALPHA_LX164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ smc37c93x.o obj-$(CONFIG_ALPHA_PC164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ @@ -76,10 +67,7 @@ obj-$(CONFIG_ALPHA_PC164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ obj-$(CONFIG_ALPHA_DP264) += sys_dp264.o irq_i8259.o es1888.o smc37c669.o obj-$(CONFIG_ALPHA_SHARK) += sys_dp264.o irq_i8259.o es1888.o smc37c669.o obj-$(CONFIG_ALPHA_TITAN) += sys_titan.o irq_i8259.o smc37c669.o -obj-$(CONFIG_ALPHA_EB64P) += sys_eb64p.o irq_i8259.o -obj-$(CONFIG_ALPHA_EB66) += sys_eb64p.o irq_i8259.o obj-$(CONFIG_ALPHA_EIGER) += sys_eiger.o irq_i8259.o -obj-$(CONFIG_ALPHA_JENSEN) += sys_jensen.o pci-noop.o irq_i8259.o obj-$(CONFIG_ALPHA_MARVEL) += sys_marvel.o obj-$(CONFIG_ALPHA_MIATA) += sys_miata.o irq_pyxis.o irq_i8259.o \ es1888.o smc37c669.o @@ -90,12 +78,6 @@ obj-$(CONFIG_ALPHA_RAWHIDE) += sys_rawhide.o irq_i8259.o obj-$(CONFIG_ALPHA_RUFFIAN) += sys_ruffian.o irq_pyxis.o irq_i8259.o obj-$(CONFIG_ALPHA_RX164) += sys_rx164.o irq_i8259.o obj-$(CONFIG_ALPHA_SABLE) += sys_sable.o -obj-$(CONFIG_ALPHA_LYNX) += sys_sable.o -obj-$(CONFIG_ALPHA_BOOK1) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o -obj-$(CONFIG_ALPHA_AVANTI) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o -obj-$(CONFIG_ALPHA_NONAME) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o -obj-$(CONFIG_ALPHA_P2K) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o -obj-$(CONFIG_ALPHA_XL) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o obj-$(CONFIG_ALPHA_SX164) += sys_sx164.o irq_pyxis.o irq_i8259.o \ irq_srm.o smc37c669.o obj-$(CONFIG_ALPHA_TAKARA) += sys_takara.o irq_i8259.o pc873xx.o diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c deleted file mode 100644 index 89566b346c0f..000000000000 --- a/arch/alpha/kernel/alpha_ksyms.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * linux/arch/alpha/kernel/alpha_ksyms.c - * - * Export the alpha-specific functions that are needed for loadable - * modules. - */ - -#include <linux/module.h> -#include <asm/console.h> -#include <asm/uaccess.h> -#include <asm/checksum.h> -#include <asm/fpu.h> -#include <asm/machvec.h> - -#include <linux/syscalls.h> - -/* these are C runtime functions with special calling conventions: */ -extern void __divl (void); -extern void __reml (void); -extern void __divq (void); -extern void __remq (void); -extern void __divlu (void); -extern void __remlu (void); -extern void __divqu (void); -extern void __remqu (void); - -EXPORT_SYMBOL(alpha_mv); -EXPORT_SYMBOL(callback_getenv); -EXPORT_SYMBOL(callback_setenv); -EXPORT_SYMBOL(callback_save_env); - -/* platform dependent support */ -EXPORT_SYMBOL(strcat); -EXPORT_SYMBOL(strcpy); -EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(strncpy); -EXPORT_SYMBOL(strncat); -EXPORT_SYMBOL(strchr); -EXPORT_SYMBOL(strrchr); -EXPORT_SYMBOL(memmove); -EXPORT_SYMBOL(__memcpy); -EXPORT_SYMBOL(__memset); -EXPORT_SYMBOL(__memsetw); -EXPORT_SYMBOL(__constant_c_memset); -EXPORT_SYMBOL(copy_page); -EXPORT_SYMBOL(clear_page); - -EXPORT_SYMBOL(alpha_read_fp_reg); -EXPORT_SYMBOL(alpha_read_fp_reg_s); -EXPORT_SYMBOL(alpha_write_fp_reg); -EXPORT_SYMBOL(alpha_write_fp_reg_s); - -/* Networking helper routines. */ -EXPORT_SYMBOL(csum_tcpudp_magic); -EXPORT_SYMBOL(ip_compute_csum); -EXPORT_SYMBOL(ip_fast_csum); -EXPORT_SYMBOL(csum_partial_copy_nocheck); -EXPORT_SYMBOL(csum_partial_copy_from_user); -EXPORT_SYMBOL(csum_ipv6_magic); - -#ifdef CONFIG_MATHEMU_MODULE -extern long (*alpha_fp_emul_imprecise)(struct pt_regs *, unsigned long); -extern long (*alpha_fp_emul) (unsigned long pc); -EXPORT_SYMBOL(alpha_fp_emul_imprecise); -EXPORT_SYMBOL(alpha_fp_emul); -#endif - -/* - * The following are specially called from the uaccess assembly stubs. - */ -EXPORT_SYMBOL(__copy_user); -EXPORT_SYMBOL(__do_clear_user); - -/* - * SMP-specific symbols. - */ - -#ifdef CONFIG_SMP -EXPORT_SYMBOL(_atomic_dec_and_lock); -#endif /* CONFIG_SMP */ - -/* - * The following are special because they're not called - * explicitly (the C compiler or assembler generates them in - * response to division operations). Fortunately, their - * interface isn't gonna change any time soon now, so it's OK - * to leave it out of version control. - */ -# undef memcpy -# undef memset -EXPORT_SYMBOL(__divl); -EXPORT_SYMBOL(__divlu); -EXPORT_SYMBOL(__divq); -EXPORT_SYMBOL(__divqu); -EXPORT_SYMBOL(__reml); -EXPORT_SYMBOL(__remlu); -EXPORT_SYMBOL(__remq); -EXPORT_SYMBOL(__remqu); -EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(memchr); diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c index 6ff8886e7e22..1ebb05890499 100644 --- a/arch/alpha/kernel/asm-offsets.c +++ b/arch/alpha/kernel/asm-offsets.c @@ -1,41 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Generate definitions needed by assembly language modules. * This code generates raw asm output which is post-processed to extract * and format the required data. */ +#define COMPILE_OFFSETS #include <linux/types.h> #include <linux/stddef.h> #include <linux/sched.h> #include <linux/ptrace.h> #include <linux/kbuild.h> -#include <asm/io.h> +#include <asm/machvec.h> -void foo(void) +static void __used foo(void) { - DEFINE(TI_TASK, offsetof(struct thread_info, task)); DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); - DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); + DEFINE(TI_FP, offsetof(struct thread_info, fp)); + DEFINE(TI_STATUS, offsetof(struct thread_info, status)); BLANK(); - DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked)); - DEFINE(TASK_CRED, offsetof(struct task_struct, cred)); - DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent)); - DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader)); - DEFINE(TASK_TGID, offsetof(struct task_struct, tgid)); - BLANK(); - - DEFINE(CRED_UID, offsetof(struct cred, uid)); - DEFINE(CRED_EUID, offsetof(struct cred, euid)); - DEFINE(CRED_GID, offsetof(struct cred, gid)); - DEFINE(CRED_EGID, offsetof(struct cred, egid)); - BLANK(); - + DEFINE(SP_OFF, offsetof(struct pt_regs, ps)); DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs)); - DEFINE(PT_PTRACED, PT_PTRACED); - DEFINE(CLONE_VM, CLONE_VM); - DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); - DEFINE(SIGCHLD, SIGCHLD); + BLANK(); + + DEFINE(SWITCH_STACK_SIZE, sizeof(struct switch_stack)); BLANK(); DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache)); diff --git a/arch/alpha/kernel/audit.c b/arch/alpha/kernel/audit.c new file mode 100644 index 000000000000..3ab04709784a --- /dev/null +++ b/arch/alpha/kernel/audit.c @@ -0,0 +1,62 @@ +#include <linux/init.h> +#include <linux/types.h> +#include <linux/audit.h> +#include <asm/unistd.h> + +static unsigned dir_class[] = { +#include <asm-generic/audit_dir_write.h> +~0U +}; + +static unsigned read_class[] = { +#include <asm-generic/audit_read.h> +~0U +}; + +static unsigned write_class[] = { +#include <asm-generic/audit_write.h> +~0U +}; + +static unsigned chattr_class[] = { +#include <asm-generic/audit_change_attr.h> +~0U +}; + +static unsigned signal_class[] = { +#include <asm-generic/audit_signal.h> +~0U +}; + +int audit_classify_arch(int arch) +{ + return 0; +} + +int audit_classify_syscall(int abi, unsigned syscall) +{ + switch(syscall) { + case __NR_open: + return AUDITSC_OPEN; + case __NR_openat: + return AUDITSC_OPENAT; + case __NR_execve: + return AUDITSC_EXECVE; + case __NR_openat2: + return AUDITSC_OPENAT2; + default: + return AUDITSC_NATIVE; + } +} + +static int __init audit_classes_init(void) +{ + audit_register_class(AUDIT_CLASS_WRITE, write_class); + audit_register_class(AUDIT_CLASS_READ, read_class); + audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); + audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); + return 0; +} + +__initcall(audit_classes_init); diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c deleted file mode 100644 index 9525660c93c0..000000000000 --- a/arch/alpha/kernel/binfmt_loader.c +++ /dev/null @@ -1,52 +0,0 @@ -#include <linux/init.h> -#include <linux/fs.h> -#include <linux/file.h> -#include <linux/mm_types.h> -#include <linux/binfmts.h> -#include <linux/a.out.h> - -static int load_binary(struct linux_binprm *bprm) -{ - struct exec *eh = (struct exec *)bprm->buf; - unsigned long loader; - struct file *file; - int retval; - - if (eh->fh.f_magic != 0x183 || (eh->fh.f_flags & 0x3000) != 0x3000) - return -ENOEXEC; - - if (bprm->loader) - return -ENOEXEC; - - allow_write_access(bprm->file); - fput(bprm->file); - bprm->file = NULL; - - loader = bprm->vma->vm_end - sizeof(void *); - - file = open_exec("/sbin/loader"); - retval = PTR_ERR(file); - if (IS_ERR(file)) - return retval; - - /* Remember if the application is TASO. */ - bprm->taso = eh->ah.entry < 0x100000000UL; - - bprm->file = file; - bprm->loader = loader; - retval = prepare_binprm(bprm); - if (retval < 0) - return retval; - return search_binary_handler(bprm); -} - -static struct linux_binfmt loader_format = { - .load_binary = load_binary, -}; - -static int __init init_loader_binfmt(void) -{ - insert_binfmt(&loader_format); - return 0; -} -arch_initcall(init_loader_binfmt); diff --git a/arch/alpha/kernel/bugs.c b/arch/alpha/kernel/bugs.c new file mode 100644 index 000000000000..e8c51089325f --- /dev/null +++ b/arch/alpha/kernel/bugs.c @@ -0,0 +1,46 @@ + +#include <asm/hwrpb.h> +#include <linux/device.h> +#include <linux/cpu.h> + + +#ifdef CONFIG_SYSFS + +static int cpu_is_ev6_or_later(void) +{ + struct percpu_struct *cpu; + unsigned long cputype; + + cpu = (struct percpu_struct *)((char *)hwrpb + hwrpb->processor_offset); + cputype = cpu->type & 0xffffffff; + /* Include all of EV6, EV67, EV68, EV7, EV79 and EV69. */ + return (cputype == EV6_CPU) || ((cputype >= EV67_CPU) && (cputype <= EV69_CPU)); +} + +ssize_t cpu_show_meltdown(struct device *dev, + struct device_attribute *attr, char *buf) +{ + if (cpu_is_ev6_or_later()) + return sprintf(buf, "Vulnerable\n"); + else + return sprintf(buf, "Not affected\n"); +} + +ssize_t cpu_show_spectre_v1(struct device *dev, + struct device_attribute *attr, char *buf) +{ + if (cpu_is_ev6_or_later()) + return sprintf(buf, "Vulnerable\n"); + else + return sprintf(buf, "Not affected\n"); +} + +ssize_t cpu_show_spectre_v2(struct device *dev, + struct device_attribute *attr, char *buf) +{ + if (cpu_is_ev6_or_later()) + return sprintf(buf, "Vulnerable\n"); + else + return sprintf(buf, "Not affected\n"); +} +#endif diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c index 6a61deed4a85..4193f76e9633 100644 --- a/arch/alpha/kernel/console.c +++ b/arch/alpha/kernel/console.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/console.c * @@ -14,12 +15,14 @@ #include <asm/machvec.h> #include "pci_impl.h" +#include "proto.h" #ifdef CONFIG_VGA_HOSE struct pci_controller *pci_vga_hose; static struct resource alpha_vga = { .name = "alpha-vga+", + .flags = IORESOURCE_IO, .start = 0x3C0, .end = 0x3DF }; diff --git a/arch/alpha/kernel/core_apecs.c b/arch/alpha/kernel/core_apecs.c deleted file mode 100644 index 708c831efa76..000000000000 --- a/arch/alpha/kernel/core_apecs.c +++ /dev/null @@ -1,418 +0,0 @@ -/* - * linux/arch/alpha/kernel/core_apecs.c - * - * Rewritten for Apecs from the lca.c from: - * - * Written by David Mosberger (davidm@cs.arizona.edu) with some code - * taken from Dave Rusling's (david.rusling@reo.mts.dec.com) 32-bit - * bios code. - * - * Code common to all APECS core logic chips. - */ - -#define __EXTERN_INLINE inline -#include <asm/io.h> -#include <asm/core_apecs.h> -#undef __EXTERN_INLINE - -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/init.h> - -#include <asm/ptrace.h> -#include <asm/smp.h> -#include <asm/mce.h> - -#include "proto.h" -#include "pci_impl.h" - -/* - * NOTE: Herein lie back-to-back mb instructions. They are magic. - * One plausible explanation is that the i/o controller does not properly - * handle the system transaction. Another involves timing. Ho hum. - */ - -/* - * BIOS32-style PCI interface: - */ - -#define DEBUG_CONFIG 0 - -#if DEBUG_CONFIG -# define DBGC(args) printk args -#else -# define DBGC(args) -#endif - -#define vuip volatile unsigned int * - -/* - * Given a bus, device, and function number, compute resulting - * configuration space address and setup the APECS_HAXR2 register - * accordingly. It is therefore not safe to have concurrent - * invocations to configuration space access routines, but there - * really shouldn't be any need for this. - * - * Type 0: - * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 - * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | | | | | | | | | | | | | | | | | | | | | | | |F|F|F|R|R|R|R|R|R|0|0| - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * 31:11 Device select bit. - * 10:8 Function number - * 7:2 Register number - * - * Type 1: - * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 - * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1| - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * 31:24 reserved - * 23:16 bus number (8 bits = 128 possible buses) - * 15:11 Device number (5 bits) - * 10:8 function number - * 7:2 register number - * - * Notes: - * The function number selects which function of a multi-function device - * (e.g., SCSI and Ethernet). - * - * The register selects a DWORD (32 bit) register offset. Hence it - * doesn't get shifted by 2 bits as we want to "drop" the bottom two - * bits. - */ - -static int -mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where, - unsigned long *pci_addr, unsigned char *type1) -{ - unsigned long addr; - u8 bus = pbus->number; - - DBGC(("mk_conf_addr(bus=%d ,device_fn=0x%x, where=0x%x," - " pci_addr=0x%p, type1=0x%p)\n", - bus, device_fn, where, pci_addr, type1)); - - if (bus == 0) { - int device = device_fn >> 3; - - /* type 0 configuration cycle: */ - - if (device > 20) { - DBGC(("mk_conf_addr: device (%d) > 20, returning -1\n", - device)); - return -1; - } - - *type1 = 0; - addr = (device_fn << 8) | (where); - } else { - /* type 1 configuration cycle: */ - *type1 = 1; - addr = (bus << 16) | (device_fn << 8) | (where); - } - *pci_addr = addr; - DBGC(("mk_conf_addr: returning pci_addr 0x%lx\n", addr)); - return 0; -} - -static unsigned int -conf_read(unsigned long addr, unsigned char type1) -{ - unsigned long flags; - unsigned int stat0, value; - unsigned int haxr2 = 0; - - local_irq_save(flags); /* avoid getting hit by machine check */ - - DBGC(("conf_read(addr=0x%lx, type1=%d)\n", addr, type1)); - - /* Reset status register to avoid losing errors. */ - stat0 = *(vuip)APECS_IOC_DCSR; - *(vuip)APECS_IOC_DCSR = stat0; - mb(); - DBGC(("conf_read: APECS DCSR was 0x%x\n", stat0)); - - /* If Type1 access, must set HAE #2. */ - if (type1) { - haxr2 = *(vuip)APECS_IOC_HAXR2; - mb(); - *(vuip)APECS_IOC_HAXR2 = haxr2 | 1; - DBGC(("conf_read: TYPE1 access\n")); - } - - draina(); - mcheck_expected(0) = 1; - mcheck_taken(0) = 0; - mb(); - - /* Access configuration space. */ - - /* Some SRMs step on these registers during a machine check. */ - asm volatile("ldl %0,%1; mb; mb" : "=r"(value) : "m"(*(vuip)addr) - : "$9", "$10", "$11", "$12", "$13", "$14", "memory"); - - if (mcheck_taken(0)) { - mcheck_taken(0) = 0; - value = 0xffffffffU; - mb(); - } - mcheck_expected(0) = 0; - mb(); - -#if 1 - /* - * david.rusling@reo.mts.dec.com. This code is needed for the - * EB64+ as it does not generate a machine check (why I don't - * know). When we build kernels for one particular platform - * then we can make this conditional on the type. - */ - draina(); - - /* Now look for any errors. */ - stat0 = *(vuip)APECS_IOC_DCSR; - DBGC(("conf_read: APECS DCSR after read 0x%x\n", stat0)); - - /* Is any error bit set? */ - if (stat0 & 0xffe0U) { - /* If not NDEV, print status. */ - if (!(stat0 & 0x0800)) { - printk("apecs.c:conf_read: got stat0=%x\n", stat0); - } - - /* Reset error status. */ - *(vuip)APECS_IOC_DCSR = stat0; - mb(); - wrmces(0x7); /* reset machine check */ - value = 0xffffffff; - } -#endif - - /* If Type1 access, must reset HAE #2 so normal IO space ops work. */ - if (type1) { - *(vuip)APECS_IOC_HAXR2 = haxr2 & ~1; - mb(); - } - local_irq_restore(flags); - - return value; -} - -static void -conf_write(unsigned long addr, unsigned int value, unsigned char type1) -{ - unsigned long flags; - unsigned int stat0; - unsigned int haxr2 = 0; - - local_irq_save(flags); /* avoid getting hit by machine check */ - - /* Reset status register to avoid losing errors. */ - stat0 = *(vuip)APECS_IOC_DCSR; - *(vuip)APECS_IOC_DCSR = stat0; - mb(); - - /* If Type1 access, must set HAE #2. */ - if (type1) { - haxr2 = *(vuip)APECS_IOC_HAXR2; - mb(); - *(vuip)APECS_IOC_HAXR2 = haxr2 | 1; - } - - draina(); - mcheck_expected(0) = 1; - mb(); - - /* Access configuration space. */ - *(vuip)addr = value; - mb(); - mb(); /* magic */ - mcheck_expected(0) = 0; - mb(); - -#if 1 - /* - * david.rusling@reo.mts.dec.com. This code is needed for the - * EB64+ as it does not generate a machine check (why I don't - * know). When we build kernels for one particular platform - * then we can make this conditional on the type. - */ - draina(); - - /* Now look for any errors. */ - stat0 = *(vuip)APECS_IOC_DCSR; - - /* Is any error bit set? */ - if (stat0 & 0xffe0U) { - /* If not NDEV, print status. */ - if (!(stat0 & 0x0800)) { - printk("apecs.c:conf_write: got stat0=%x\n", stat0); - } - - /* Reset error status. */ - *(vuip)APECS_IOC_DCSR = stat0; - mb(); - wrmces(0x7); /* reset machine check */ - } -#endif - - /* If Type1 access, must reset HAE #2 so normal IO space ops work. */ - if (type1) { - *(vuip)APECS_IOC_HAXR2 = haxr2 & ~1; - mb(); - } - local_irq_restore(flags); -} - -static int -apecs_read_config(struct pci_bus *bus, unsigned int devfn, int where, - int size, u32 *value) -{ - unsigned long addr, pci_addr; - unsigned char type1; - long mask; - int shift; - - if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1)) - return PCIBIOS_DEVICE_NOT_FOUND; - - mask = (size - 1) * 8; - shift = (where & 3) * 8; - addr = (pci_addr << 5) + mask + APECS_CONF; - *value = conf_read(addr, type1) >> (shift); - return PCIBIOS_SUCCESSFUL; -} - -static int -apecs_write_config(struct pci_bus *bus, unsigned int devfn, int where, - int size, u32 value) -{ - unsigned long addr, pci_addr; - unsigned char type1; - long mask; - - if (mk_conf_addr(bus, devfn, where, &pci_addr, &type1)) - return PCIBIOS_DEVICE_NOT_FOUND; - - mask = (size - 1) * 8; - addr = (pci_addr << 5) + mask + APECS_CONF; - conf_write(addr, value << ((where & 3) * 8), type1); - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops apecs_pci_ops = -{ - .read = apecs_read_config, - .write = apecs_write_config, -}; - -void -apecs_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end) -{ - wmb(); - *(vip)APECS_IOC_TBIA = 0; - mb(); -} - -void __init -apecs_init_arch(void) -{ - struct pci_controller *hose; - - /* - * Create our single hose. - */ - - pci_isa_hose = hose = alloc_pci_controller(); - hose->io_space = &ioport_resource; - hose->mem_space = &iomem_resource; - hose->index = 0; - - hose->sparse_mem_base = APECS_SPARSE_MEM - IDENT_ADDR; - hose->dense_mem_base = APECS_DENSE_MEM - IDENT_ADDR; - hose->sparse_io_base = APECS_IO - IDENT_ADDR; - hose->dense_io_base = 0; - - /* - * Set up the PCI to main memory translation windows. - * - * Window 1 is direct access 1GB at 1GB - * Window 2 is scatter-gather 8MB at 8MB (for isa) - */ - hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0); - hose->sg_pci = NULL; - __direct_map_base = 0x40000000; - __direct_map_size = 0x40000000; - - *(vuip)APECS_IOC_PB1R = __direct_map_base | 0x00080000; - *(vuip)APECS_IOC_PM1R = (__direct_map_size - 1) & 0xfff00000U; - *(vuip)APECS_IOC_TB1R = 0; - - *(vuip)APECS_IOC_PB2R = hose->sg_isa->dma_base | 0x000c0000; - *(vuip)APECS_IOC_PM2R = (hose->sg_isa->size - 1) & 0xfff00000; - *(vuip)APECS_IOC_TB2R = virt_to_phys(hose->sg_isa->ptes) >> 1; - - apecs_pci_tbi(hose, 0, -1); - - /* - * Finally, clear the HAXR2 register, which gets used - * for PCI Config Space accesses. That is the way - * we want to use it, and we do not want to depend on - * what ARC or SRM might have left behind... - */ - *(vuip)APECS_IOC_HAXR2 = 0; - mb(); -} - -void -apecs_pci_clr_err(void) -{ - unsigned int jd; - - jd = *(vuip)APECS_IOC_DCSR; - if (jd & 0xffe0L) { - *(vuip)APECS_IOC_SEAR; - *(vuip)APECS_IOC_DCSR = jd | 0xffe1L; - mb(); - *(vuip)APECS_IOC_DCSR; - } - *(vuip)APECS_IOC_TBIA = (unsigned int)APECS_IOC_TBIA; - mb(); - *(vuip)APECS_IOC_TBIA; -} - -void -apecs_machine_check(unsigned long vector, unsigned long la_ptr) -{ - struct el_common *mchk_header; - struct el_apecs_procdata *mchk_procdata; - struct el_apecs_sysdata_mcheck *mchk_sysdata; - - mchk_header = (struct el_common *)la_ptr; - - mchk_procdata = (struct el_apecs_procdata *) - (la_ptr + mchk_header->proc_offset - - sizeof(mchk_procdata->paltemp)); - - mchk_sysdata = (struct el_apecs_sysdata_mcheck *) - (la_ptr + mchk_header->sys_offset); - - - /* Clear the error before any reporting. */ - mb(); - mb(); /* magic */ - draina(); - apecs_pci_clr_err(); - wrmces(0x7); /* reset machine check pending flag */ - mb(); - - process_mcheck_info(vector, la_ptr, "APECS", - (mcheck_expected(0) - && (mchk_sysdata->epic_dcsr & 0x0c00UL))); -} diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c index c44339e176c1..6e577228e175 100644 --- a/arch/alpha/kernel/core_cia.c +++ b/arch/alpha/kernel/core_cia.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_cia.c * @@ -20,7 +21,7 @@ #include <linux/pci.h> #include <linux/sched.h> #include <linux/init.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <asm/ptrace.h> #include <asm/mce.h> @@ -279,7 +280,7 @@ cia_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end) #define CIA_BROKEN_TBIA_SIZE 1024 /* Always called with interrupts disabled */ -void +static void cia_pci_tbi_try2(struct pci_controller *hose, dma_addr_t start, dma_addr_t end) { @@ -330,7 +331,7 @@ cia_prepare_tbia_workaround(int window) long i; /* Use minimal 1K map. */ - ppte = __alloc_bootmem(CIA_BROKEN_TBIA_SIZE, 32768, 0); + ppte = memblock_alloc_or_panic(CIA_BROKEN_TBIA_SIZE, 32768); pte = (virt_to_phys(ppte) >> (PAGE_SHIFT - 1)) | 1; for (i = 0; i < CIA_BROKEN_TBIA_SIZE / sizeof(unsigned long); ++i) @@ -523,7 +524,7 @@ verify_tb_operation(void) if (use_tbia_try2) { alpha_mv.mv_pci_tbi = cia_pci_tbi_try2; - /* Tags 0-3 must be disabled if we use this workaraund. */ + /* Tags 0-3 must be disabled if we use this workaround. */ wmb(); *(vip)CIA_IOC_TB_TAGn(0) = 2; *(vip)CIA_IOC_TB_TAGn(1) = 2; @@ -572,7 +573,7 @@ struct } window[4]; } saved_config __attribute((common)); -void +static void cia_save_srm_settings(int is_pyxis) { int i; @@ -598,7 +599,7 @@ cia_save_srm_settings(int is_pyxis) mb(); } -void +static void cia_restore_srm_settings(void) { int i; diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c index 00096df0f6ad..05dc4c1b9074 100644 --- a/arch/alpha/kernel/core_irongate.c +++ b/arch/alpha/kernel/core_irongate.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_irongate.c * @@ -19,10 +20,9 @@ #include <linux/sched.h> #include <linux/init.h> #include <linux/initrd.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <asm/ptrace.h> -#include <asm/pci.h> #include <asm/cacheflush.h> #include <asm/tlbflush.h> @@ -226,23 +226,20 @@ albacore_init_arch(void) if (memtop > pci_mem) { #ifdef CONFIG_BLK_DEV_INITRD extern unsigned long initrd_start, initrd_end; - extern void *move_initrd(unsigned long); /* Move the initrd out of the way. */ if (initrd_end && __pa(initrd_end) > pci_mem) { unsigned long size; size = initrd_end - initrd_start; - free_bootmem_node(NODE_DATA(0), __pa(initrd_start), - PAGE_ALIGN(size)); + memblock_free((void *)initrd_start, PAGE_ALIGN(size)); if (!move_initrd(pci_mem)) printk("irongate_init_arch: initrd too big " "(%ldK)\ndisabling initrd\n", size / 1024); } #endif - reserve_bootmem_node(NODE_DATA(0), pci_mem, memtop - - pci_mem, BOOTMEM_DEFAULT); + memblock_reserve(pci_mem, memtop - pci_mem); printk("irongate_init_arch: temporarily reserving " "region %08lx-%08lx for PCI\n", pci_mem, memtop - 1); } @@ -304,7 +301,6 @@ irongate_init_arch(void) #include <linux/agp_backend.h> #include <linux/agpgart.h> #include <linux/export.h> -#include <asm/pgalloc.h> #define GET_PAGE_DIR_OFF(addr) (addr >> 22) #define GET_PAGE_DIR_IDX(addr) (GET_PAGE_DIR_OFF(addr)) diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c deleted file mode 100644 index cb2801cfd3df..000000000000 --- a/arch/alpha/kernel/core_lca.c +++ /dev/null @@ -1,515 +0,0 @@ -/* - * linux/arch/alpha/kernel/core_lca.c - * - * Written by David Mosberger (davidm@cs.arizona.edu) with some code - * taken from Dave Rusling's (david.rusling@reo.mts.dec.com) 32-bit - * bios code. - * - * Code common to all LCA core logic chips. - */ - -#define __EXTERN_INLINE inline -#include <asm/io.h> -#include <asm/core_lca.h> -#undef __EXTERN_INLINE - -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/tty.h> - -#include <asm/ptrace.h> -#include <asm/irq_regs.h> -#include <asm/smp.h> - -#include "proto.h" -#include "pci_impl.h" - - -/* - * BIOS32-style PCI interface: - */ - -/* - * Machine check reasons. Defined according to PALcode sources - * (osf.h and platform.h). - */ -#define MCHK_K_TPERR 0x0080 -#define MCHK_K_TCPERR 0x0082 -#define MCHK_K_HERR 0x0084 -#define MCHK_K_ECC_C 0x0086 -#define MCHK_K_ECC_NC 0x0088 -#define MCHK_K_UNKNOWN 0x008A -#define MCHK_K_CACKSOFT 0x008C -#define MCHK_K_BUGCHECK 0x008E -#define MCHK_K_OS_BUGCHECK 0x0090 -#define MCHK_K_DCPERR 0x0092 -#define MCHK_K_ICPERR 0x0094 - - -/* - * Platform-specific machine-check reasons: - */ -#define MCHK_K_SIO_SERR 0x204 /* all platforms so far */ -#define MCHK_K_SIO_IOCHK 0x206 /* all platforms so far */ -#define MCHK_K_DCSR 0x208 /* all but Noname */ - - -/* - * Given a bus, device, and function number, compute resulting - * configuration space address and setup the LCA_IOC_CONF register - * accordingly. It is therefore not safe to have concurrent - * invocations to configuration space access routines, but there - * really shouldn't be any need for this. - * - * Type 0: - * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 - * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | | | | | | | | | | | | | | | | | | | | | | | |F|F|F|R|R|R|R|R|R|0|0| - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * 31:11 Device select bit. - * 10:8 Function number - * 7:2 Register number - * - * Type 1: - * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 - * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1| - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * - * 31:24 reserved - * 23:16 bus number (8 bits = 128 possible buses) - * 15:11 Device number (5 bits) - * 10:8 function number - * 7:2 register number - * - * Notes: - * The function number selects which function of a multi-function device - * (e.g., SCSI and Ethernet). - * - * The register selects a DWORD (32 bit) register offset. Hence it - * doesn't get shifted by 2 bits as we want to "drop" the bottom two - * bits. - */ - -static int -mk_conf_addr(struct pci_bus *pbus, unsigned int device_fn, int where, - unsigned long *pci_addr) -{ - unsigned long addr; - u8 bus = pbus->number; - - if (bus == 0) { - int device = device_fn >> 3; - int func = device_fn & 0x7; - - /* Type 0 configuration cycle. */ - - if (device > 12) { - return -1; - } - - *(vulp)LCA_IOC_CONF = 0; - addr = (1 << (11 + device)) | (func << 8) | where; - } else { - /* Type 1 configuration cycle. */ - *(vulp)LCA_IOC_CONF = 1; - addr = (bus << 16) | (device_fn << 8) | where; - } - *pci_addr = addr; - return 0; -} - -static unsigned int -conf_read(unsigned long addr) -{ - unsigned long flags, code, stat0; - unsigned int value; - - local_irq_save(flags); - - /* Reset status register to avoid losing errors. */ - stat0 = *(vulp)LCA_IOC_STAT0; - *(vulp)LCA_IOC_STAT0 = stat0; - mb(); - - /* Access configuration space. */ - value = *(vuip)addr; - draina(); - - stat0 = *(vulp)LCA_IOC_STAT0; - if (stat0 & LCA_IOC_STAT0_ERR) { - code = ((stat0 >> LCA_IOC_STAT0_CODE_SHIFT) - & LCA_IOC_STAT0_CODE_MASK); - if (code != 1) { - printk("lca.c:conf_read: got stat0=%lx\n", stat0); - } - - /* Reset error status. */ - *(vulp)LCA_IOC_STAT0 = stat0; - mb(); - - /* Reset machine check. */ - wrmces(0x7); - - value = 0xffffffff; - } - local_irq_restore(flags); - return value; -} - -static void -conf_write(unsigned long addr, unsigned int value) -{ - unsigned long flags, code, stat0; - - local_irq_save(flags); /* avoid getting hit by machine check */ - - /* Reset status register to avoid losing errors. */ - stat0 = *(vulp)LCA_IOC_STAT0; - *(vulp)LCA_IOC_STAT0 = stat0; - mb(); - - /* Access configuration space. */ - *(vuip)addr = value; - draina(); - - stat0 = *(vulp)LCA_IOC_STAT0; - if (stat0 & LCA_IOC_STAT0_ERR) { - code = ((stat0 >> LCA_IOC_STAT0_CODE_SHIFT) - & LCA_IOC_STAT0_CODE_MASK); - if (code != 1) { - printk("lca.c:conf_write: got stat0=%lx\n", stat0); - } - - /* Reset error status. */ - *(vulp)LCA_IOC_STAT0 = stat0; - mb(); - - /* Reset machine check. */ - wrmces(0x7); - } - local_irq_restore(flags); -} - -static int -lca_read_config(struct pci_bus *bus, unsigned int devfn, int where, - int size, u32 *value) -{ - unsigned long addr, pci_addr; - long mask; - int shift; - - if (mk_conf_addr(bus, devfn, where, &pci_addr)) - return PCIBIOS_DEVICE_NOT_FOUND; - - shift = (where & 3) * 8; - mask = (size - 1) * 8; - addr = (pci_addr << 5) + mask + LCA_CONF; - *value = conf_read(addr) >> (shift); - return PCIBIOS_SUCCESSFUL; -} - -static int -lca_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, - u32 value) -{ - unsigned long addr, pci_addr; - long mask; - - if (mk_conf_addr(bus, devfn, where, &pci_addr)) - return PCIBIOS_DEVICE_NOT_FOUND; - - mask = (size - 1) * 8; - addr = (pci_addr << 5) + mask + LCA_CONF; - conf_write(addr, value << ((where & 3) * 8)); - return PCIBIOS_SUCCESSFUL; -} - -struct pci_ops lca_pci_ops = -{ - .read = lca_read_config, - .write = lca_write_config, -}; - -void -lca_pci_tbi(struct pci_controller *hose, dma_addr_t start, dma_addr_t end) -{ - wmb(); - *(vulp)LCA_IOC_TBIA = 0; - mb(); -} - -void __init -lca_init_arch(void) -{ - struct pci_controller *hose; - - /* - * Create our single hose. - */ - - pci_isa_hose = hose = alloc_pci_controller(); - hose->io_space = &ioport_resource; - hose->mem_space = &iomem_resource; - hose->index = 0; - - hose->sparse_mem_base = LCA_SPARSE_MEM - IDENT_ADDR; - hose->dense_mem_base = LCA_DENSE_MEM - IDENT_ADDR; - hose->sparse_io_base = LCA_IO - IDENT_ADDR; - hose->dense_io_base = 0; - - /* - * Set up the PCI to main memory translation windows. - * - * Mimic the SRM settings for the direct-map window. - * Window 0 is scatter-gather 8MB at 8MB (for isa). - * Window 1 is direct access 1GB at 1GB. - * - * Note that we do not try to save any of the DMA window CSRs - * before setting them, since we cannot read those CSRs on LCA. - */ - hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0); - hose->sg_pci = NULL; - __direct_map_base = 0x40000000; - __direct_map_size = 0x40000000; - - *(vulp)LCA_IOC_W_BASE0 = hose->sg_isa->dma_base | (3UL << 32); - *(vulp)LCA_IOC_W_MASK0 = (hose->sg_isa->size - 1) & 0xfff00000; - *(vulp)LCA_IOC_T_BASE0 = virt_to_phys(hose->sg_isa->ptes); - - *(vulp)LCA_IOC_W_BASE1 = __direct_map_base | (2UL << 32); - *(vulp)LCA_IOC_W_MASK1 = (__direct_map_size - 1) & 0xfff00000; - *(vulp)LCA_IOC_T_BASE1 = 0; - - *(vulp)LCA_IOC_TB_ENA = 0x80; - - lca_pci_tbi(hose, 0, -1); - - /* - * Disable PCI parity for now. The NCR53c810 chip has - * troubles meeting the PCI spec which results in - * data parity errors. - */ - *(vulp)LCA_IOC_PAR_DIS = 1UL<<5; - - /* - * Finally, set up for restoring the correct HAE if using SRM. - * Again, since we cannot read many of the CSRs on the LCA, - * one of which happens to be the HAE, we save the value that - * the SRM will expect... - */ - if (alpha_using_srm) - srm_hae = 0x80000000UL; -} - -/* - * Constants used during machine-check handling. I suppose these - * could be moved into lca.h but I don't see much reason why anybody - * else would want to use them. - */ - -#define ESR_EAV (1UL<< 0) /* error address valid */ -#define ESR_CEE (1UL<< 1) /* correctable error */ -#define ESR_UEE (1UL<< 2) /* uncorrectable error */ -#define ESR_WRE (1UL<< 3) /* write-error */ -#define ESR_SOR (1UL<< 4) /* error source */ -#define ESR_CTE (1UL<< 7) /* cache-tag error */ -#define ESR_MSE (1UL<< 9) /* multiple soft errors */ -#define ESR_MHE (1UL<<10) /* multiple hard errors */ -#define ESR_NXM (1UL<<12) /* non-existent memory */ - -#define IOC_ERR ( 1<<4) /* ioc logs an error */ -#define IOC_CMD_SHIFT 0 -#define IOC_CMD (0xf<<IOC_CMD_SHIFT) -#define IOC_CODE_SHIFT 8 -#define IOC_CODE (0xf<<IOC_CODE_SHIFT) -#define IOC_LOST ( 1<<5) -#define IOC_P_NBR ((__u32) ~((1<<13) - 1)) - -static void -mem_error(unsigned long esr, unsigned long ear) -{ - printk(" %s %s error to %s occurred at address %x\n", - ((esr & ESR_CEE) ? "Correctable" : - (esr & ESR_UEE) ? "Uncorrectable" : "A"), - (esr & ESR_WRE) ? "write" : "read", - (esr & ESR_SOR) ? "memory" : "b-cache", - (unsigned) (ear & 0x1ffffff8)); - if (esr & ESR_CTE) { - printk(" A b-cache tag parity error was detected.\n"); - } - if (esr & ESR_MSE) { - printk(" Several other correctable errors occurred.\n"); - } - if (esr & ESR_MHE) { - printk(" Several other uncorrectable errors occurred.\n"); - } - if (esr & ESR_NXM) { - printk(" Attempted to access non-existent memory.\n"); - } -} - -static void -ioc_error(__u32 stat0, __u32 stat1) -{ - static const char * const pci_cmd[] = { - "Interrupt Acknowledge", "Special", "I/O Read", "I/O Write", - "Rsvd 1", "Rsvd 2", "Memory Read", "Memory Write", "Rsvd3", - "Rsvd4", "Configuration Read", "Configuration Write", - "Memory Read Multiple", "Dual Address", "Memory Read Line", - "Memory Write and Invalidate" - }; - static const char * const err_name[] = { - "exceeded retry limit", "no device", "bad data parity", - "target abort", "bad address parity", "page table read error", - "invalid page", "data error" - }; - unsigned code = (stat0 & IOC_CODE) >> IOC_CODE_SHIFT; - unsigned cmd = (stat0 & IOC_CMD) >> IOC_CMD_SHIFT; - - printk(" %s initiated PCI %s cycle to address %x" - " failed due to %s.\n", - code > 3 ? "PCI" : "CPU", pci_cmd[cmd], stat1, err_name[code]); - - if (code == 5 || code == 6) { - printk(" (Error occurred at PCI memory address %x.)\n", - (stat0 & ~IOC_P_NBR)); - } - if (stat0 & IOC_LOST) { - printk(" Other PCI errors occurred simultaneously.\n"); - } -} - -void -lca_machine_check(unsigned long vector, unsigned long la_ptr) -{ - const char * reason; - union el_lca el; - - el.c = (struct el_common *) la_ptr; - - wrmces(rdmces()); /* reset machine check pending flag */ - - printk(KERN_CRIT "LCA machine check: vector=%#lx pc=%#lx code=%#x\n", - vector, get_irq_regs()->pc, (unsigned int) el.c->code); - - /* - * The first quadword after the common header always seems to - * be the machine check reason---don't know why this isn't - * part of the common header instead. In the case of a long - * logout frame, the upper 32 bits is the machine check - * revision level, which we ignore for now. - */ - switch ((unsigned int) el.c->code) { - case MCHK_K_TPERR: reason = "tag parity error"; break; - case MCHK_K_TCPERR: reason = "tag control parity error"; break; - case MCHK_K_HERR: reason = "access to non-existent memory"; break; - case MCHK_K_ECC_C: reason = "correctable ECC error"; break; - case MCHK_K_ECC_NC: reason = "non-correctable ECC error"; break; - case MCHK_K_CACKSOFT: reason = "MCHK_K_CACKSOFT"; break; - case MCHK_K_BUGCHECK: reason = "illegal exception in PAL mode"; break; - case MCHK_K_OS_BUGCHECK: reason = "callsys in kernel mode"; break; - case MCHK_K_DCPERR: reason = "d-cache parity error"; break; - case MCHK_K_ICPERR: reason = "i-cache parity error"; break; - case MCHK_K_SIO_SERR: reason = "SIO SERR occurred on PCI bus"; break; - case MCHK_K_SIO_IOCHK: reason = "SIO IOCHK occurred on ISA bus"; break; - case MCHK_K_DCSR: reason = "MCHK_K_DCSR"; break; - case MCHK_K_UNKNOWN: - default: reason = "unknown"; break; - } - - switch (el.c->size) { - case sizeof(struct el_lca_mcheck_short): - printk(KERN_CRIT - " Reason: %s (short frame%s, dc_stat=%#lx):\n", - reason, el.c->retry ? ", retryable" : "", - el.s->dc_stat); - if (el.s->esr & ESR_EAV) { - mem_error(el.s->esr, el.s->ear); - } - if (el.s->ioc_stat0 & IOC_ERR) { - ioc_error(el.s->ioc_stat0, el.s->ioc_stat1); - } - break; - - case sizeof(struct el_lca_mcheck_long): - printk(KERN_CRIT " Reason: %s (long frame%s):\n", - reason, el.c->retry ? ", retryable" : ""); - printk(KERN_CRIT - " reason: %#lx exc_addr: %#lx dc_stat: %#lx\n", - el.l->pt[0], el.l->exc_addr, el.l->dc_stat); - printk(KERN_CRIT " car: %#lx\n", el.l->car); - if (el.l->esr & ESR_EAV) { - mem_error(el.l->esr, el.l->ear); - } - if (el.l->ioc_stat0 & IOC_ERR) { - ioc_error(el.l->ioc_stat0, el.l->ioc_stat1); - } - break; - - default: - printk(KERN_CRIT " Unknown errorlog size %d\n", el.c->size); - } - - /* Dump the logout area to give all info. */ -#ifdef CONFIG_VERBOSE_MCHECK - if (alpha_verbose_mcheck > 1) { - unsigned long * ptr = (unsigned long *) la_ptr; - long i; - for (i = 0; i < el.c->size / sizeof(long); i += 2) { - printk(KERN_CRIT " +%8lx %016lx %016lx\n", - i*sizeof(long), ptr[i], ptr[i+1]); - } - } -#endif /* CONFIG_VERBOSE_MCHECK */ -} - -/* - * The following routines are needed to support the SPEED changing - * necessary to successfully manage the thermal problem on the AlphaBook1. - */ - -void -lca_clock_print(void) -{ - long pmr_reg; - - pmr_reg = LCA_READ_PMR; - - printk("Status of clock control:\n"); - printk("\tPrimary clock divisor\t0x%lx\n", LCA_GET_PRIMARY(pmr_reg)); - printk("\tOverride clock divisor\t0x%lx\n", LCA_GET_OVERRIDE(pmr_reg)); - printk("\tInterrupt override is %s\n", - (pmr_reg & LCA_PMR_INTO) ? "on" : "off"); - printk("\tDMA override is %s\n", - (pmr_reg & LCA_PMR_DMAO) ? "on" : "off"); - -} - -int -lca_get_clock(void) -{ - long pmr_reg; - - pmr_reg = LCA_READ_PMR; - return(LCA_GET_PRIMARY(pmr_reg)); - -} - -void -lca_clock_fiddle(int divisor) -{ - long pmr_reg; - - pmr_reg = LCA_READ_PMR; - LCA_SET_PRIMARY_CLOCK(pmr_reg, divisor); - /* lca_norm_clock = divisor; */ - LCA_WRITE_PMR(pmr_reg); - mb(); -} diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c index 53dd2f1a53aa..d38f4d6759e4 100644 --- a/arch/alpha/kernel/core_marvel.c +++ b/arch/alpha/kernel/core_marvel.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_marvel.c * @@ -16,15 +17,14 @@ #include <linux/vmalloc.h> #include <linux/mc146818rtc.h> #include <linux/rtc.h> +#include <linux/string.h> #include <linux/module.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <asm/ptrace.h> #include <asm/smp.h> #include <asm/gct.h> -#include <asm/pgalloc.h> #include <asm/tlbflush.h> -#include <asm/rtc.h> #include <asm/vga.h> #include "proto.h" @@ -80,10 +80,12 @@ mk_resource_name(int pe, int port, char *str) { char tmp[80]; char *name; - - sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port); - name = alloc_bootmem(strlen(tmp) + 1); - strcpy(name, tmp); + size_t sz; + + sz = scnprintf(tmp, sizeof(tmp), "PCI %s PE %d PORT %d", str, pe, port); + sz += 1; /* NUL terminator */ + name = memblock_alloc_or_panic(sz, SMP_CACHE_BYTES); + strscpy(name, tmp, sz); return name; } @@ -117,9 +119,9 @@ alloc_io7(unsigned int pe) return NULL; } - io7 = alloc_bootmem(sizeof(*io7)); + io7 = memblock_alloc_or_panic(sizeof(*io7), SMP_CACHE_BYTES); io7->pe = pe; - spin_lock_init(&io7->irq_lock); + raw_spin_lock_init(&io7->irq_lock); for (h = 0; h < 4; h++) { io7->ports[h].io7 = io7; @@ -282,8 +284,7 @@ io7_init_hose(struct io7 *io7, int port) /* * Set up window 0 for scatter-gather 8MB at 8MB. */ - hose->sg_isa = iommu_arena_new_node(marvel_cpuid_to_nid(io7->pe), - hose, 0x00800000, 0x00800000, 0); + hose->sg_isa = iommu_arena_new_node(0, hose, 0x00800000, 0x00800000, 0); hose->sg_isa->align_entry = 8; /* cache line boundary */ csrs->POx_WBASE[0].csr = hose->sg_isa->dma_base | wbase_m_ena | wbase_m_sg; @@ -300,8 +301,7 @@ io7_init_hose(struct io7 *io7, int port) /* * Set up window 2 for scatter-gather (up-to) 1GB at 3GB. */ - hose->sg_pci = iommu_arena_new_node(marvel_cpuid_to_nid(io7->pe), - hose, 0xc0000000, 0x40000000, 0); + hose->sg_pci = iommu_arena_new_node(0, hose, 0xc0000000, 0x40000000, 0); hose->sg_pci->align_entry = 8; /* cache line boundary */ csrs->POx_WBASE[2].csr = hose->sg_pci->dma_base | wbase_m_ena | wbase_m_sg; @@ -352,7 +352,7 @@ marvel_init_io7(struct io7 *io7) } } -void +static void __init marvel_io7_present(gct6_node *node) { int pe; @@ -370,6 +370,7 @@ marvel_io7_present(gct6_node *node) static void __init marvel_find_console_vga_hose(void) { +#ifdef CONFIG_VGA_HOSE u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset); if (pu64[7] == 3) { /* TERM_TYPE == graphics */ @@ -403,9 +404,10 @@ marvel_find_console_vga_hose(void) pci_vga_hose = hose; } } +#endif } -gct6_search_struct gct_wanted_node_list[] = { +gct6_search_struct gct_wanted_node_list[] __initdata = { { GCT_TYPE_HOSE, GCT_SUBTYPE_IO_PORT_MODULE, marvel_io7_present }, { 0, 0, NULL } }; @@ -798,8 +800,8 @@ void __iomem *marvel_ioportmap (unsigned long addr) return (void __iomem *)addr; } -unsigned int -marvel_ioread8(void __iomem *xaddr) +u8 +marvel_ioread8(const void __iomem *xaddr) { unsigned long addr = (unsigned long) xaddr; if (__marvel_is_port_kbd(addr)) @@ -836,53 +838,8 @@ EXPORT_SYMBOL(marvel_ioportmap); EXPORT_SYMBOL(marvel_ioread8); EXPORT_SYMBOL(marvel_iowrite8); #endif - -/* - * NUMA Support - */ -/********** - * FIXME - for now each cpu is a node by itself - * -- no real support for striped mode - ********** - */ -int -marvel_pa_to_nid(unsigned long pa) -{ - int cpuid; - - if ((pa >> 43) & 1) /* I/O */ - cpuid = (~(pa >> 35) & 0xff); - else /* mem */ - cpuid = ((pa >> 34) & 0x3) | ((pa >> (37 - 2)) & (0x1f << 2)); - - return marvel_cpuid_to_nid(cpuid); -} -int -marvel_cpuid_to_nid(int cpuid) -{ - return cpuid; -} - -unsigned long -marvel_node_mem_start(int nid) -{ - unsigned long pa; - - pa = (nid & 0x3) | ((nid & (0x1f << 2)) << 1); - pa <<= 34; - - return pa; -} - -unsigned long -marvel_node_mem_size(int nid) -{ - return 16UL * 1024 * 1024 * 1024; /* 16GB */ -} - - -/* +/* * AGP GART Support. */ #include <linux/agp_backend.h> diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c index da7bcc372f16..74b1d018124c 100644 --- a/arch/alpha/kernel/core_mcpcia.c +++ b/arch/alpha/kernel/core_mcpcia.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_mcpcia.c * @@ -363,9 +364,11 @@ mcpcia_startup_hose(struct pci_controller *hose) * Window 1 is scatter-gather (up to) 1GB at 1GB (for pci) * Window 2 is direct access 2GB at 2GB */ - hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0); + hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, + SMP_CACHE_BYTES); hose->sg_pci = iommu_arena_new(hose, 0x40000000, - size_for_memory(0x40000000), 0); + size_for_memory(0x40000000), + SMP_CACHE_BYTES); __direct_map_base = 0x80000000; __direct_map_size = 0x80000000; diff --git a/arch/alpha/kernel/core_polaris.c b/arch/alpha/kernel/core_polaris.c index c5a271d37abd..75d622d96ff2 100644 --- a/arch/alpha/kernel/core_polaris.c +++ b/arch/alpha/kernel/core_polaris.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_polaris.c * diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c index 3ada4f7b085d..3d72d90624f1 100644 --- a/arch/alpha/kernel/core_t2.c +++ b/arch/alpha/kernel/core_t2.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_t2.c * @@ -9,7 +10,7 @@ * Code common to all T2 core logic chips. */ -#define __EXTERN_INLINE +#define __EXTERN_INLINE inline #include <asm/io.h> #include <asm/core_t2.h> #undef __EXTERN_INLINE @@ -350,7 +351,7 @@ t2_sg_map_window2(struct pci_controller *hose, /* Note we can only do 1 SG window, as the other is for direct, so do an ISA SG area, especially for the floppy. */ - hose->sg_isa = iommu_arena_new(hose, base, length, 0); + hose->sg_isa = iommu_arena_new(hose, base, length, SMP_CACHE_BYTES); hose->sg_pci = NULL; temp = (base & 0xfff00000UL) | ((base + length - 1) >> 20); diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c index 219bf271c0ba..77f5d68ed04b 100644 --- a/arch/alpha/kernel/core_titan.c +++ b/arch/alpha/kernel/core_titan.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_titan.c * @@ -15,11 +16,10 @@ #include <linux/sched.h> #include <linux/init.h> #include <linux/vmalloc.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <asm/ptrace.h> #include <asm/smp.h> -#include <asm/pgalloc.h> #include <asm/tlbflush.h> #include <asm/vga.h> @@ -315,10 +315,12 @@ titan_init_one_pachip_port(titan_pachip_port *port, int index) * Window 1 is direct access 1GB at 2GB * Window 2 is scatter-gather 1GB at 3GB */ - hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0); + hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, + SMP_CACHE_BYTES); hose->sg_isa->align_entry = 8; /* 64KB for ISA */ - hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000, 0); + hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000, + SMP_CACHE_BYTES); hose->sg_pci->align_entry = 4; /* Titan caches 4 PTEs at a time */ port->wsba[0].csr = hose->sg_isa->dma_base | 3; @@ -461,6 +463,7 @@ titan_ioremap(unsigned long addr, unsigned long size) unsigned long *ptes; unsigned long pfn; +#ifdef CONFIG_VGA_HOSE /* * Adjust the address and hose, if necessary. */ @@ -468,6 +471,7 @@ titan_ioremap(unsigned long addr, unsigned long size) h = pci_vga_hose->index; addr += pci_vga_hose->mem_space->start; } +#endif /* * Find the hose. diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c index 61893d7bdda5..fc1ab73f23de 100644 --- a/arch/alpha/kernel/core_tsunami.c +++ b/arch/alpha/kernel/core_tsunami.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_tsunami.c * @@ -16,7 +17,7 @@ #include <linux/pci.h> #include <linux/sched.h> #include <linux/init.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <asm/ptrace.h> #include <asm/smp.h> @@ -318,12 +319,14 @@ tsunami_init_one_pchip(tsunami_pchip *pchip, int index) * NOTE: we need the align_entry settings for Acer devices on ES40, * specifically floppy and IDE when memory is larger than 2GB. */ - hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0); + hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, + SMP_CACHE_BYTES); /* Initially set for 4 PTEs, but will be overridden to 64K for ISA. */ hose->sg_isa->align_entry = 4; hose->sg_pci = iommu_arena_new(hose, 0x40000000, - size_for_memory(0x40000000), 0); + size_for_memory(0x40000000), + SMP_CACHE_BYTES); hose->sg_pci->align_entry = 4; /* Tsunami caches 4 PTEs at a time */ __direct_map_base = 0x80000000; diff --git a/arch/alpha/kernel/core_wildfire.c b/arch/alpha/kernel/core_wildfire.c index 7e072443d7fd..8dd08c5e4270 100644 --- a/arch/alpha/kernel/core_wildfire.c +++ b/arch/alpha/kernel/core_wildfire.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/core_wildfire.c * @@ -58,7 +59,7 @@ unsigned long wildfire_pca_mask; unsigned long wildfire_cpu_mask; unsigned long wildfire_mem_mask; -void __init +static void __init wildfire_init_hose(int qbbno, int hoseno) { struct pci_controller *hose; @@ -110,8 +111,10 @@ wildfire_init_hose(int qbbno, int hoseno) * ??? We ought to scale window 3 memory. * */ - hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0); - hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000, 0); + hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, + SMP_CACHE_BYTES); + hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000, + SMP_CACHE_BYTES); pci = WILDFIRE_pci(qbbno, hoseno); @@ -134,7 +137,7 @@ wildfire_init_hose(int qbbno, int hoseno) wildfire_pci_tbi(hose, 0, 0); /* Flush TLB at the end. */ } -void __init +static void __init wildfire_init_pca(int qbbno, int pcano) { @@ -151,7 +154,7 @@ wildfire_init_pca(int qbbno, int pcano) wildfire_init_hose(qbbno, (pcano << 1) + 1); } -void __init +static void __init wildfire_init_qbb(int qbbno) { int pcano; @@ -173,7 +176,7 @@ wildfire_init_qbb(int qbbno) } } -void __init +static void __init wildfire_hardware_probe(void) { unsigned long temp; @@ -431,39 +434,12 @@ wildfire_write_config(struct pci_bus *bus, unsigned int devfn, int where, return PCIBIOS_SUCCESSFUL; } -struct pci_ops wildfire_pci_ops = +struct pci_ops wildfire_pci_ops = { .read = wildfire_read_config, .write = wildfire_write_config, }; - -/* - * NUMA Support - */ -int wildfire_pa_to_nid(unsigned long pa) -{ - return pa >> 36; -} - -int wildfire_cpuid_to_nid(int cpuid) -{ - /* assume 4 CPUs per node */ - return cpuid >> 2; -} - -unsigned long wildfire_node_mem_start(int nid) -{ - /* 64GB per node */ - return (unsigned long)nid * (64UL * 1024 * 1024 * 1024); -} - -unsigned long wildfire_node_mem_size(int nid) -{ - /* 64GB per node */ - return 64UL * 1024 * 1024 * 1024; -} - #if DEBUG_DUMP_REGS static void __init @@ -556,7 +532,7 @@ wildfire_dump_qsd_regs(int qbbno) printk(KERN_ERR " QSD_REV: 0x%16lx\n", qsd->qsd_rev.csr); printk(KERN_ERR " QSD_PORT_PRESENT: 0x%16lx\n", qsd->qsd_port_present.csr); - printk(KERN_ERR " QSD_PORT_ACTUVE: 0x%16lx\n", + printk(KERN_ERR " QSD_PORT_ACTIVE: 0x%16lx\n", qsd->qsd_port_active.csr); printk(KERN_ERR " QSD_FAULT_ENA: 0x%16lx\n", qsd->qsd_fault_ena.csr); diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index f62a994ef126..f4d41b4538c2 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/kernel/entry.S * @@ -12,10 +13,27 @@ .text .set noat + .cfi_sections .debug_frame -/* Stack offsets. */ -#define SP_OFF 184 -#define SWITCH_STACK_SIZE 320 +.macro CFI_START_OSF_FRAME func + .align 4 + .globl \func + .type \func,@function +\func: + .cfi_startproc simple + .cfi_return_column 64 + .cfi_def_cfa $sp, 48 + .cfi_rel_offset 64, 8 + .cfi_rel_offset $gp, 16 + .cfi_rel_offset $16, 24 + .cfi_rel_offset $17, 32 + .cfi_rel_offset $18, 40 +.endm + +.macro CFI_END_OSF_FRAME func + .cfi_endproc + .size \func, . - \func +.endm /* * This defines the normal kernel pt-regs layout. @@ -27,100 +45,157 @@ * the palcode-provided values are available to the signal handler. */ -#define SAVE_ALL \ - subq $sp, SP_OFF, $sp; \ - stq $0, 0($sp); \ - stq $1, 8($sp); \ - stq $2, 16($sp); \ - stq $3, 24($sp); \ - stq $4, 32($sp); \ - stq $28, 144($sp); \ - lda $2, alpha_mv; \ - stq $5, 40($sp); \ - stq $6, 48($sp); \ - stq $7, 56($sp); \ - stq $8, 64($sp); \ - stq $19, 72($sp); \ - stq $20, 80($sp); \ - stq $21, 88($sp); \ - ldq $2, HAE_CACHE($2); \ - stq $22, 96($sp); \ - stq $23, 104($sp); \ - stq $24, 112($sp); \ - stq $25, 120($sp); \ - stq $26, 128($sp); \ - stq $27, 136($sp); \ - stq $2, 152($sp); \ - stq $16, 160($sp); \ - stq $17, 168($sp); \ +.macro SAVE_ALL + subq $sp, SP_OFF, $sp + .cfi_adjust_cfa_offset SP_OFF + stq $0, 0($sp) + stq $1, 8($sp) + stq $2, 16($sp) + stq $3, 24($sp) + stq $4, 32($sp) + stq $28, 144($sp) + .cfi_rel_offset $0, 0 + .cfi_rel_offset $1, 8 + .cfi_rel_offset $2, 16 + .cfi_rel_offset $3, 24 + .cfi_rel_offset $4, 32 + .cfi_rel_offset $28, 144 + lda $2, alpha_mv + stq $5, 40($sp) + stq $6, 48($sp) + stq $7, 56($sp) + stq $8, 64($sp) + stq $19, 72($sp) + stq $20, 80($sp) + stq $21, 88($sp) + ldq $2, HAE_CACHE($2) + stq $22, 96($sp) + stq $23, 104($sp) + stq $24, 112($sp) + stq $25, 120($sp) + stq $26, 128($sp) + stq $27, 136($sp) + stq $2, 152($sp) + stq $16, 160($sp) + stq $17, 168($sp) stq $18, 176($sp) + .cfi_rel_offset $5, 40 + .cfi_rel_offset $6, 48 + .cfi_rel_offset $7, 56 + .cfi_rel_offset $8, 64 + .cfi_rel_offset $19, 72 + .cfi_rel_offset $20, 80 + .cfi_rel_offset $21, 88 + .cfi_rel_offset $22, 96 + .cfi_rel_offset $23, 104 + .cfi_rel_offset $24, 112 + .cfi_rel_offset $25, 120 + .cfi_rel_offset $26, 128 + .cfi_rel_offset $27, 136 +.endm -#define RESTORE_ALL \ - lda $19, alpha_mv; \ - ldq $0, 0($sp); \ - ldq $1, 8($sp); \ - ldq $2, 16($sp); \ - ldq $3, 24($sp); \ - ldq $21, 152($sp); \ - ldq $20, HAE_CACHE($19); \ - ldq $4, 32($sp); \ - ldq $5, 40($sp); \ - ldq $6, 48($sp); \ - ldq $7, 56($sp); \ - subq $20, $21, $20; \ - ldq $8, 64($sp); \ - beq $20, 99f; \ - ldq $20, HAE_REG($19); \ - stq $21, HAE_CACHE($19); \ - stq $21, 0($20); \ -99:; \ - ldq $19, 72($sp); \ - ldq $20, 80($sp); \ - ldq $21, 88($sp); \ - ldq $22, 96($sp); \ - ldq $23, 104($sp); \ - ldq $24, 112($sp); \ - ldq $25, 120($sp); \ - ldq $26, 128($sp); \ - ldq $27, 136($sp); \ - ldq $28, 144($sp); \ +.macro RESTORE_ALL + lda $19, alpha_mv + ldq $0, 0($sp) + ldq $1, 8($sp) + ldq $2, 16($sp) + ldq $3, 24($sp) + ldq $21, 152($sp) + ldq $20, HAE_CACHE($19) + ldq $4, 32($sp) + ldq $5, 40($sp) + ldq $6, 48($sp) + ldq $7, 56($sp) + subq $20, $21, $20 + ldq $8, 64($sp) + beq $20, 99f + ldq $20, HAE_REG($19) + stq $21, HAE_CACHE($19) + stq $21, 0($20) +99: ldq $19, 72($sp) + ldq $20, 80($sp) + ldq $21, 88($sp) + ldq $22, 96($sp) + ldq $23, 104($sp) + ldq $24, 112($sp) + ldq $25, 120($sp) + ldq $26, 128($sp) + ldq $27, 136($sp) + ldq $28, 144($sp) addq $sp, SP_OFF, $sp + .cfi_restore $0 + .cfi_restore $1 + .cfi_restore $2 + .cfi_restore $3 + .cfi_restore $4 + .cfi_restore $5 + .cfi_restore $6 + .cfi_restore $7 + .cfi_restore $8 + .cfi_restore $19 + .cfi_restore $20 + .cfi_restore $21 + .cfi_restore $22 + .cfi_restore $23 + .cfi_restore $24 + .cfi_restore $25 + .cfi_restore $26 + .cfi_restore $27 + .cfi_restore $28 + .cfi_adjust_cfa_offset -SP_OFF +.endm + +.macro DO_SWITCH_STACK + bsr $1, do_switch_stack + .cfi_adjust_cfa_offset SWITCH_STACK_SIZE + .cfi_rel_offset $9, 0 + .cfi_rel_offset $10, 8 + .cfi_rel_offset $11, 16 + .cfi_rel_offset $12, 24 + .cfi_rel_offset $13, 32 + .cfi_rel_offset $14, 40 + .cfi_rel_offset $15, 48 +.endm + +.macro UNDO_SWITCH_STACK + bsr $1, undo_switch_stack + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_adjust_cfa_offset -SWITCH_STACK_SIZE +.endm /* * Non-syscall kernel entry points. */ - .align 4 - .globl entInt - .ent entInt -entInt: +CFI_START_OSF_FRAME entInt SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $19 jsr $31, do_entInt -.end entInt +CFI_END_OSF_FRAME entInt - .align 4 - .globl entArith - .ent entArith -entArith: +CFI_START_OSF_FRAME entArith SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $18 jsr $31, do_entArith -.end entArith +CFI_END_OSF_FRAME entArith - .align 4 - .globl entMM - .ent entMM -entMM: +CFI_START_OSF_FRAME entMM SAVE_ALL /* save $9 - $15 so the inline exception code can manipulate them. */ - subq $sp, 56, $sp + subq $sp, 64, $sp + .cfi_adjust_cfa_offset 64 stq $9, 0($sp) stq $10, 8($sp) stq $11, 16($sp) @@ -128,7 +203,14 @@ entMM: stq $13, 32($sp) stq $14, 40($sp) stq $15, 48($sp) - addq $sp, 56, $19 + .cfi_rel_offset $9, 0 + .cfi_rel_offset $10, 8 + .cfi_rel_offset $11, 16 + .cfi_rel_offset $12, 24 + .cfi_rel_offset $13, 32 + .cfi_rel_offset $14, 40 + .cfi_rel_offset $15, 48 + addq $sp, 64, $19 /* handle the fault */ lda $8, 0x3fff bic $sp, $8, $8 @@ -141,29 +223,34 @@ entMM: ldq $13, 32($sp) ldq $14, 40($sp) ldq $15, 48($sp) - addq $sp, 56, $sp + addq $sp, 64, $sp + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_adjust_cfa_offset -64 /* finish up the syscall as normal. */ br ret_from_sys_call -.end entMM +CFI_END_OSF_FRAME entMM - .align 4 - .globl entIF - .ent entIF -entIF: +CFI_START_OSF_FRAME entIF SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $17 jsr $31, do_entIF -.end entIF +CFI_END_OSF_FRAME entIF - .align 4 - .globl entUna - .ent entUna -entUna: +CFI_START_OSF_FRAME entUna lda $sp, -256($sp) + .cfi_adjust_cfa_offset 256 stq $0, 0($sp) + .cfi_rel_offset $0, 0 + .cfi_remember_state ldq $0, 256($sp) /* get PS */ stq $1, 8($sp) stq $2, 16($sp) @@ -195,6 +282,32 @@ entUna: stq $28, 224($sp) mov $sp, $19 stq $gp, 232($sp) + .cfi_rel_offset $1, 1*8 + .cfi_rel_offset $2, 2*8 + .cfi_rel_offset $3, 3*8 + .cfi_rel_offset $4, 4*8 + .cfi_rel_offset $5, 5*8 + .cfi_rel_offset $6, 6*8 + .cfi_rel_offset $7, 7*8 + .cfi_rel_offset $8, 8*8 + .cfi_rel_offset $9, 9*8 + .cfi_rel_offset $10, 10*8 + .cfi_rel_offset $11, 11*8 + .cfi_rel_offset $12, 12*8 + .cfi_rel_offset $13, 13*8 + .cfi_rel_offset $14, 14*8 + .cfi_rel_offset $15, 15*8 + .cfi_rel_offset $19, 19*8 + .cfi_rel_offset $20, 20*8 + .cfi_rel_offset $21, 21*8 + .cfi_rel_offset $22, 22*8 + .cfi_rel_offset $23, 23*8 + .cfi_rel_offset $24, 24*8 + .cfi_rel_offset $25, 25*8 + .cfi_rel_offset $26, 26*8 + .cfi_rel_offset $27, 27*8 + .cfi_rel_offset $28, 28*8 + .cfi_rel_offset $29, 29*8 lda $8, 0x3fff stq $31, 248($sp) bic $sp, $8, $8 @@ -228,16 +341,45 @@ entUna: ldq $28, 224($sp) ldq $gp, 232($sp) lda $sp, 256($sp) + .cfi_restore $1 + .cfi_restore $2 + .cfi_restore $3 + .cfi_restore $4 + .cfi_restore $5 + .cfi_restore $6 + .cfi_restore $7 + .cfi_restore $8 + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_restore $19 + .cfi_restore $20 + .cfi_restore $21 + .cfi_restore $22 + .cfi_restore $23 + .cfi_restore $24 + .cfi_restore $25 + .cfi_restore $26 + .cfi_restore $27 + .cfi_restore $28 + .cfi_restore $29 + .cfi_adjust_cfa_offset -256 call_pal PAL_rti -.end entUna .align 4 - .ent entUnaUser entUnaUser: + .cfi_restore_state ldq $0, 0($sp) /* restore original $0 */ lda $sp, 256($sp) /* pop entUna's stack frame */ + .cfi_restore $0 + .cfi_adjust_cfa_offset -256 SAVE_ALL /* setup normal kernel stack */ - lda $sp, -56($sp) + lda $sp, -64($sp) + .cfi_adjust_cfa_offset 64 stq $9, 0($sp) stq $10, 8($sp) stq $11, 16($sp) @@ -245,8 +387,15 @@ entUnaUser: stq $13, 32($sp) stq $14, 40($sp) stq $15, 48($sp) + .cfi_rel_offset $9, 0 + .cfi_rel_offset $10, 8 + .cfi_rel_offset $11, 16 + .cfi_rel_offset $12, 24 + .cfi_rel_offset $13, 32 + .cfi_rel_offset $14, 40 + .cfi_rel_offset $15, 48 lda $8, 0x3fff - addq $sp, 56, $19 + addq $sp, 64, $19 bic $sp, $8, $8 jsr $26, do_entUnaUser ldq $9, 0($sp) @@ -256,21 +405,26 @@ entUnaUser: ldq $13, 32($sp) ldq $14, 40($sp) ldq $15, 48($sp) - lda $sp, 56($sp) + lda $sp, 64($sp) + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_adjust_cfa_offset -64 br ret_from_sys_call -.end entUnaUser +CFI_END_OSF_FRAME entUna - .align 4 - .globl entDbg - .ent entDbg -entDbg: +CFI_START_OSF_FRAME entDbg SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $16 jsr $31, do_entDbg -.end entDbg +CFI_END_OSF_FRAME entDbg /* * The system call entry point is special. Most importantly, it looks @@ -285,13 +439,17 @@ entDbg: .align 4 .globl entSys - .globl ret_from_sys_call - .ent entSys + .type entSys, @function + .cfi_startproc simple + .cfi_return_column 64 + .cfi_def_cfa $sp, 48 + .cfi_rel_offset 64, 8 + .cfi_rel_offset $gp, 16 entSys: SAVE_ALL lda $8, 0x3fff bic $sp, $8, $8 - lda $4, NR_SYSCALLS($31) + lda $4, NR_syscalls($31) stq $16, SP_OFF+24($sp) lda $5, sys_call_table lda $27, sys_ni_syscall @@ -300,16 +458,27 @@ entSys: stq $17, SP_OFF+32($sp) s8addq $0, $5, $5 stq $18, SP_OFF+40($sp) - blbs $3, strace + .cfi_rel_offset $16, SP_OFF+24 + .cfi_rel_offset $17, SP_OFF+32 + .cfi_rel_offset $18, SP_OFF+40 +#ifdef CONFIG_AUDITSYSCALL + lda $6, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT + and $3, $6, $3 + bne $3, strace +#else + blbs $3, strace /* check for SYSCALL_TRACE in disguise */ +#endif beq $4, 1f ldq $27, 0($5) -1: jsr $26, ($27), alpha_ni_syscall +1: jsr $26, ($27), sys_ni_syscall ldgp $gp, 0($26) blt $0, $syscall_error /* the call failed */ +$ret_success: stq $0, 0($sp) stq $31, 72($sp) /* a3=0 => no error */ .align 4 + .globl ret_from_sys_call ret_from_sys_call: cmovne $26, 0, $18 /* $18 = 0 => non-restartable */ ldq $0, SP_OFF($sp) @@ -324,13 +493,19 @@ ret_to_user: and $17, _TIF_WORK_MASK, $2 bne $2, work_pending restore_all: + ldl $2, TI_STATUS($8) + and $2, TS_SAVED_FP | TS_RESTORE_FP, $3 + bne $3, restore_fpu +restore_other: + .cfi_remember_state RESTORE_ALL call_pal PAL_rti ret_to_kernel: + .cfi_restore_state lda $16, 7 call_pal PAL_swpipl - br restore_all + br restore_other .align 3 $syscall_error: @@ -352,12 +527,6 @@ $syscall_error: stq $1, 72($sp) /* a3 for return */ br ret_from_sys_call -$ret_success: - stq $0, 0($sp) - stq $31, 72($sp) /* a3=0 => no error */ - br ret_from_sys_call -.end entSys - /* * Do all cleanup when returning from all interrupts and system calls. * @@ -370,9 +539,9 @@ $ret_success: */ .align 4 - .ent work_pending + .type work_pending, @function work_pending: - and $17, _TIF_NOTIFY_RESUME | _TIF_SIGPENDING, $2 + and $17, _TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL, $2 bne $2, $work_notifysig $work_resched: @@ -387,23 +556,30 @@ $work_resched: $work_notifysig: mov $sp, $16 - bsr $1, do_switch_stack + DO_SWITCH_STACK jsr $26, do_work_pending - bsr $1, undo_switch_stack + UNDO_SWITCH_STACK br restore_all -.end work_pending /* * PTRACE syscall handler */ .align 4 - .ent strace + .type strace, @function strace: /* set up signal stack, call syscall_trace */ - bsr $1, do_switch_stack + // NB: if anyone adds preemption, this block will need to be protected + ldl $1, TI_STATUS($8) + and $1, TS_SAVED_FP, $3 + or $1, TS_SAVED_FP, $2 + bne $3, 1f + stl $2, TI_STATUS($8) + bsr $26, __save_fpu +1: + DO_SWITCH_STACK jsr $26, syscall_trace_enter /* returns the syscall number */ - bsr $1, undo_switch_stack + UNDO_SWITCH_STACK /* get the arguments back.. */ ldq $16, SP_OFF+24($sp) @@ -414,9 +590,9 @@ strace: ldq $21, 88($sp) /* get the system call pointer.. */ - lda $1, NR_SYSCALLS($31) + lda $1, NR_syscalls($31) lda $2, sys_call_table - lda $27, alpha_ni_syscall + lda $27, sys_ni_syscall cmpult $0, $1, $1 s8addq $0, $2, $2 beq $1, 1f @@ -427,13 +603,13 @@ ret_from_straced: /* check return.. */ blt $0, $strace_error /* the call failed */ - stq $31, 72($sp) /* a3=0 => no error */ $strace_success: + stq $31, 72($sp) /* a3=0 => no error */ stq $0, 0($sp) /* save return value */ - bsr $1, do_switch_stack + DO_SWITCH_STACK jsr $26, syscall_trace_leave - bsr $1, undo_switch_stack + UNDO_SWITCH_STACK br $31, ret_from_sys_call .align 3 @@ -447,26 +623,31 @@ $strace_error: stq $0, 0($sp) stq $1, 72($sp) /* a3 for return */ - bsr $1, do_switch_stack + DO_SWITCH_STACK mov $18, $9 /* save old syscall number */ mov $19, $10 /* save old a3 */ jsr $26, syscall_trace_leave mov $9, $18 mov $10, $19 - bsr $1, undo_switch_stack + UNDO_SWITCH_STACK mov $31, $26 /* tell "ret_from_sys_call" we can restart */ br ret_from_sys_call -.end strace +CFI_END_OSF_FRAME entSys /* * Save and restore the switch stack -- aka the balance of the user context. */ .align 4 - .ent do_switch_stack + .type do_switch_stack, @function + .cfi_startproc simple + .cfi_return_column 64 + .cfi_def_cfa $sp, 0 + .cfi_register 64, $1 do_switch_stack: lda $sp, -SWITCH_STACK_SIZE($sp) + .cfi_adjust_cfa_offset SWITCH_STACK_SIZE stq $9, 0($sp) stq $10, 8($sp) stq $11, 16($sp) @@ -475,45 +656,15 @@ do_switch_stack: stq $14, 40($sp) stq $15, 48($sp) stq $26, 56($sp) - stt $f0, 64($sp) - stt $f1, 72($sp) - stt $f2, 80($sp) - stt $f3, 88($sp) - stt $f4, 96($sp) - stt $f5, 104($sp) - stt $f6, 112($sp) - stt $f7, 120($sp) - stt $f8, 128($sp) - stt $f9, 136($sp) - stt $f10, 144($sp) - stt $f11, 152($sp) - stt $f12, 160($sp) - stt $f13, 168($sp) - stt $f14, 176($sp) - stt $f15, 184($sp) - stt $f16, 192($sp) - stt $f17, 200($sp) - stt $f18, 208($sp) - stt $f19, 216($sp) - stt $f20, 224($sp) - stt $f21, 232($sp) - stt $f22, 240($sp) - stt $f23, 248($sp) - stt $f24, 256($sp) - stt $f25, 264($sp) - stt $f26, 272($sp) - stt $f27, 280($sp) - mf_fpcr $f0 # get fpcr - stt $f28, 288($sp) - stt $f29, 296($sp) - stt $f30, 304($sp) - stt $f0, 312($sp) # save fpcr in slot of $f31 - ldt $f0, 64($sp) # dont let "do_switch_stack" change fp state. ret $31, ($1), 1 -.end do_switch_stack + .cfi_endproc + .size do_switch_stack, .-do_switch_stack .align 4 - .ent undo_switch_stack + .type undo_switch_stack, @function + .cfi_startproc simple + .cfi_def_cfa $sp, 0 + .cfi_register 64, $1 undo_switch_stack: ldq $9, 0($sp) ldq $10, 8($sp) @@ -523,60 +674,79 @@ undo_switch_stack: ldq $14, 40($sp) ldq $15, 48($sp) ldq $26, 56($sp) - ldt $f30, 312($sp) # get saved fpcr - ldt $f0, 64($sp) - ldt $f1, 72($sp) - ldt $f2, 80($sp) - ldt $f3, 88($sp) - mt_fpcr $f30 # install saved fpcr - ldt $f4, 96($sp) - ldt $f5, 104($sp) - ldt $f6, 112($sp) - ldt $f7, 120($sp) - ldt $f8, 128($sp) - ldt $f9, 136($sp) - ldt $f10, 144($sp) - ldt $f11, 152($sp) - ldt $f12, 160($sp) - ldt $f13, 168($sp) - ldt $f14, 176($sp) - ldt $f15, 184($sp) - ldt $f16, 192($sp) - ldt $f17, 200($sp) - ldt $f18, 208($sp) - ldt $f19, 216($sp) - ldt $f20, 224($sp) - ldt $f21, 232($sp) - ldt $f22, 240($sp) - ldt $f23, 248($sp) - ldt $f24, 256($sp) - ldt $f25, 264($sp) - ldt $f26, 272($sp) - ldt $f27, 280($sp) - ldt $f28, 288($sp) - ldt $f29, 296($sp) - ldt $f30, 304($sp) lda $sp, SWITCH_STACK_SIZE($sp) ret $31, ($1), 1 -.end undo_switch_stack + .cfi_endproc + .size undo_switch_stack, .-undo_switch_stack + +#define FR(n) n * 8 + TI_FP($8) + .align 4 + .globl __save_fpu + .type __save_fpu, @function +__save_fpu: +#define V(n) stt $f##n, FR(n) + V( 0); V( 1); V( 2); V( 3) + V( 4); V( 5); V( 6); V( 7) + V( 8); V( 9); V(10); V(11) + V(12); V(13); V(14); V(15) + V(16); V(17); V(18); V(19) + V(20); V(21); V(22); V(23) + V(24); V(25); V(26); V(27) + mf_fpcr $f0 # get fpcr + V(28); V(29); V(30) + stt $f0, FR(31) # save fpcr in slot of $f31 + ldt $f0, FR(0) # don't let "__save_fpu" change fp state. + ret +#undef V + .size __save_fpu, .-__save_fpu + + .align 4 +restore_fpu: + and $3, TS_RESTORE_FP, $3 + bic $2, TS_SAVED_FP | TS_RESTORE_FP, $2 + beq $3, 1f +#define V(n) ldt $f##n, FR(n) + ldt $f30, FR(31) # get saved fpcr + V( 0); V( 1); V( 2); V( 3) + mt_fpcr $f30 # install saved fpcr + V( 4); V( 5); V( 6); V( 7) + V( 8); V( 9); V(10); V(11) + V(12); V(13); V(14); V(15) + V(16); V(17); V(18); V(19) + V(20); V(21); V(22); V(23) + V(24); V(25); V(26); V(27) + V(28); V(29); V(30) +1: stl $2, TI_STATUS($8) + br restore_other +#undef V + /* * The meat of the context switch code. */ - .align 4 .globl alpha_switch_to - .ent alpha_switch_to + .type alpha_switch_to, @function + .cfi_startproc alpha_switch_to: - .prologue 0 - bsr $1, do_switch_stack + DO_SWITCH_STACK + ldl $1, TI_STATUS($8) + and $1, TS_RESTORE_FP, $3 + bne $3, 1f + or $1, TS_RESTORE_FP | TS_SAVED_FP, $2 + and $1, TS_SAVED_FP, $3 + stl $2, TI_STATUS($8) + bne $3, 1f + bsr $26, __save_fpu +1: call_pal PAL_swpctx lda $8, 0x3fff - bsr $1, undo_switch_stack + UNDO_SWITCH_STACK bic $sp, $8, $8 mov $17, $0 ret -.end alpha_switch_to + .cfi_endproc + .size alpha_switch_to, .-alpha_switch_to /* * New processes begin life here. @@ -586,7 +756,7 @@ alpha_switch_to: .align 4 .ent ret_from_fork ret_from_fork: - lda $26, ret_from_sys_call + lda $26, ret_to_user mov $17, $16 jmp $31, schedule_tail .end ret_from_fork @@ -603,14 +773,13 @@ ret_from_kernel_thread: mov $9, $27 mov $10, $16 jsr $26, ($9) - mov $31, $19 /* to disable syscall restarts */ br $31, ret_to_user .end ret_from_kernel_thread /* * Special system calls. Most of these are special in that they either - * have to play switch_stack games or in some way use the pt_regs struct. + * have to play switch_stack games. */ .macro fork_like name @@ -620,6 +789,14 @@ ret_from_kernel_thread: alpha_\name: .prologue 0 bsr $1, do_switch_stack + // NB: if anyone adds preemption, this block will need to be protected + ldl $1, TI_STATUS($8) + and $1, TS_SAVED_FP, $3 + or $1, TS_SAVED_FP, $2 + bne $3, 1f + stl $2, TI_STATUS($8) + bsr $26, __save_fpu +1: jsr $26, sys_\name ldq $26, 56($sp) lda $sp, SWITCH_STACK_SIZE($sp) @@ -630,47 +807,43 @@ alpha_\name: fork_like fork fork_like vfork fork_like clone +fork_like clone3 +.macro sigreturn_like name .align 4 - .globl sys_sigreturn - .ent sys_sigreturn -sys_sigreturn: + .globl sys_\name + .ent sys_\name +sys_\name: .prologue 0 lda $9, ret_from_straced cmpult $26, $9, $9 lda $sp, -SWITCH_STACK_SIZE($sp) - jsr $26, do_sigreturn + jsr $26, do_\name bne $9, 1f jsr $26, syscall_trace_leave 1: br $1, undo_switch_stack br ret_from_sys_call -.end sys_sigreturn +.end sys_\name +.endm - .align 4 - .globl sys_rt_sigreturn - .ent sys_rt_sigreturn -sys_rt_sigreturn: - .prologue 0 - lda $9, ret_from_straced - cmpult $26, $9, $9 - lda $sp, -SWITCH_STACK_SIZE($sp) - jsr $26, do_rt_sigreturn - bne $9, 1f - jsr $26, syscall_trace_leave -1: br $1, undo_switch_stack - br ret_from_sys_call -.end sys_rt_sigreturn +sigreturn_like sigreturn +sigreturn_like rt_sigreturn .align 4 - .globl alpha_ni_syscall - .ent alpha_ni_syscall -alpha_ni_syscall: + .globl alpha_syscall_zero + .ent alpha_syscall_zero +alpha_syscall_zero: .prologue 0 - /* Special because it also implements overflow handling via - syscall number 0. And if you recall, zero is a special - trigger for "not an error". Store large non-zero there. */ + /* Special because it needs to do something opposite to + force_successful_syscall_return(). We use the saved + syscall number for that, zero meaning "not an error". + That works nicely, but for real syscall 0 we need to + make sure that this logics doesn't get confused. + Store a non-zero there - -ENOSYS we need in register + for our return value will do just fine. + */ lda $0, -ENOSYS unop stq $0, 0($sp) ret -.end alpha_ni_syscall +.end alpha_syscall_zero diff --git a/arch/alpha/kernel/err_common.c b/arch/alpha/kernel/err_common.c index 13d53b1c9657..94e1b3dcf6d4 100644 --- a/arch/alpha/kernel/err_common.c +++ b/arch/alpha/kernel/err_common.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/err_common.c * diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c index 253cf1a87481..8144f2045b5b 100644 --- a/arch/alpha/kernel/err_ev6.c +++ b/arch/alpha/kernel/err_ev6.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/err_ev6.c * @@ -6,7 +7,6 @@ * Error handling code supporting Alpha systems */ -#include <linux/init.h> #include <linux/sched.h> #include <asm/io.h> diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c index d738a67112d4..565de1acf1f5 100644 --- a/arch/alpha/kernel/err_ev7.c +++ b/arch/alpha/kernel/err_ev7.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/err_ev7.c * diff --git a/arch/alpha/kernel/err_impl.h b/arch/alpha/kernel/err_impl.h index ae529c416037..737b958a586d 100644 --- a/arch/alpha/kernel/err_impl.h +++ b/arch/alpha/kernel/err_impl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/arch/alpha/kernel/err_impl.h * diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c index ae54ad91e18f..c0c0ccefc467 100644 --- a/arch/alpha/kernel/err_marvel.c +++ b/arch/alpha/kernel/err_marvel.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/err_marvel.c * diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c index 14b26c466c89..0ffb2feea42a 100644 --- a/arch/alpha/kernel/err_titan.c +++ b/arch/alpha/kernel/err_titan.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/err_titan.c * diff --git a/arch/alpha/kernel/es1888.c b/arch/alpha/kernel/es1888.c index d584c85fea7a..297476bb08fb 100644 --- a/arch/alpha/kernel/es1888.c +++ b/arch/alpha/kernel/es1888.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/es1888.c * diff --git a/arch/alpha/kernel/gct.c b/arch/alpha/kernel/gct.c index c0c7155448e0..8ac0088dca54 100644 --- a/arch/alpha/kernel/gct.c +++ b/arch/alpha/kernel/gct.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/gct.c */ diff --git a/arch/alpha/kernel/head.S b/arch/alpha/kernel/head.S index c352499ab9f8..bb48a8ae4e79 100644 --- a/arch/alpha/kernel/head.S +++ b/arch/alpha/kernel/head.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/kernel/head.S * diff --git a/arch/alpha/kernel/io.c b/arch/alpha/kernel/io.c index 19c5875ab398..c28035d6d1e6 100644 --- a/arch/alpha/kernel/io.c +++ b/arch/alpha/kernel/io.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Alpha IO and memory functions. */ @@ -13,51 +14,74 @@ "generic", which bumps through the machine vector. */ unsigned int -ioread8(void __iomem *addr) +ioread8(const void __iomem *addr) { - unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr); + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr); + mb(); + return ret; +} + +unsigned int ioread16(const void __iomem *addr) +{ + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr); mb(); return ret; } -unsigned int ioread16(void __iomem *addr) +unsigned int ioread32(const void __iomem *addr) { - unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr); + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr); mb(); return ret; } -unsigned int ioread32(void __iomem *addr) +u64 ioread64(const void __iomem *addr) { - unsigned int ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr); + unsigned int ret; + mb(); + ret = IO_CONCAT(__IO_PREFIX,ioread64)(addr); mb(); return ret; } void iowrite8(u8 b, void __iomem *addr) { - IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr); mb(); + IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr); } void iowrite16(u16 b, void __iomem *addr) { - IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr); mb(); + IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr); } void iowrite32(u32 b, void __iomem *addr) { + mb(); IO_CONCAT(__IO_PREFIX,iowrite32)(b, addr); +} + +void iowrite64(u64 b, void __iomem *addr) +{ mb(); + IO_CONCAT(__IO_PREFIX,iowrite64)(b, addr); } EXPORT_SYMBOL(ioread8); EXPORT_SYMBOL(ioread16); EXPORT_SYMBOL(ioread32); +EXPORT_SYMBOL(ioread64); EXPORT_SYMBOL(iowrite8); EXPORT_SYMBOL(iowrite16); EXPORT_SYMBOL(iowrite32); +EXPORT_SYMBOL(iowrite64); u8 inb(unsigned long port) { @@ -147,54 +171,62 @@ EXPORT_SYMBOL(__raw_writeq); u8 readb(const volatile void __iomem *addr) { - u8 ret = __raw_readb(addr); + u8 ret; + mb(); + ret = __raw_readb(addr); mb(); return ret; } u16 readw(const volatile void __iomem *addr) { - u16 ret = __raw_readw(addr); + u16 ret; + mb(); + ret = __raw_readw(addr); mb(); return ret; } u32 readl(const volatile void __iomem *addr) { - u32 ret = __raw_readl(addr); + u32 ret; + mb(); + ret = __raw_readl(addr); mb(); return ret; } u64 readq(const volatile void __iomem *addr) { - u64 ret = __raw_readq(addr); + u64 ret; + mb(); + ret = __raw_readq(addr); mb(); return ret; } void writeb(u8 b, volatile void __iomem *addr) { - __raw_writeb(b, addr); mb(); + __raw_writeb(b, addr); } void writew(u16 b, volatile void __iomem *addr) { - __raw_writew(b, addr); mb(); + __raw_writew(b, addr); } void writel(u32 b, volatile void __iomem *addr) { - __raw_writel(b, addr); mb(); + __raw_writel(b, addr); } void writeq(u64 b, volatile void __iomem *addr) { - __raw_writeq(b, addr); mb(); + __raw_writeq(b, addr); } EXPORT_SYMBOL(readb); @@ -206,11 +238,43 @@ EXPORT_SYMBOL(writew); EXPORT_SYMBOL(writel); EXPORT_SYMBOL(writeq); +/* + * The _relaxed functions must be ordered w.r.t. each other, but they don't + * have to be ordered w.r.t. other memory accesses. + */ +u8 readb_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readb(addr); +} + +u16 readw_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readw(addr); +} + +u32 readl_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readl(addr); +} + +u64 readq_relaxed(const volatile void __iomem *addr) +{ + mb(); + return __raw_readq(addr); +} + +EXPORT_SYMBOL(readb_relaxed); +EXPORT_SYMBOL(readw_relaxed); +EXPORT_SYMBOL(readl_relaxed); +EXPORT_SYMBOL(readq_relaxed); /* * Read COUNT 8-bit bytes from port PORT into memory starting at SRC. */ -void ioread8_rep(void __iomem *port, void *dst, unsigned long count) +void ioread8_rep(const void __iomem *port, void *dst, unsigned long count) { while ((unsigned long)dst & 0x3) { if (!count) @@ -253,7 +317,7 @@ EXPORT_SYMBOL(insb); * the interfaces seems to be slow: just using the inlined version * of the inw() breaks things. */ -void ioread16_rep(void __iomem *port, void *dst, unsigned long count) +void ioread16_rep(const void __iomem *port, void *dst, unsigned long count) { if (unlikely((unsigned long)dst & 0x3)) { if (!count) @@ -293,7 +357,7 @@ EXPORT_SYMBOL(insw); * but the interfaces seems to be slow: just using the inlined version * of the inl() breaks things. */ -void ioread32_rep(void __iomem *port, void *dst, unsigned long count) +void ioread32_rep(const void __iomem *port, void *dst, unsigned long count) { if (unlikely((unsigned long)dst & 0x3)) { while (count--) { @@ -583,6 +647,10 @@ void _memset_c_io(volatile void __iomem *to, unsigned long c, long count) EXPORT_SYMBOL(_memset_c_io); +#if IS_ENABLED(CONFIG_VGA_CONSOLE) || IS_ENABLED(CONFIG_MDA_CONSOLE) + +#include <asm/vga.h> + /* A version of memcpy used by the vga console routines to move data around arbitrarily between screen and main memory. */ @@ -617,6 +685,21 @@ scr_memcpyw(u16 *d, const u16 *s, unsigned int count) EXPORT_SYMBOL(scr_memcpyw); +void scr_memmovew(u16 *d, const u16 *s, unsigned int count) +{ + if (d < s) + scr_memcpyw(d, s, count); + else { + count /= 2; + d += count; + s += count; + while (count--) + scr_writew(scr_readw(--s), --d); + } +} +EXPORT_SYMBOL(scr_memmovew); +#endif + void __iomem *ioport_map(unsigned long port, unsigned int size) { return IO_CONCAT(__IO_PREFIX,ioportmap) (port); diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c index 7b2be251c30f..c67047c5d830 100644 --- a/arch/alpha/kernel/irq.c +++ b/arch/alpha/kernel/irq.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/irq.c * @@ -19,7 +20,6 @@ #include <linux/ptrace.h> #include <linux/interrupt.h> #include <linux/random.h> -#include <linux/init.h> #include <linux/irq.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> @@ -27,7 +27,8 @@ #include <linux/bitops.h> #include <asm/io.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> +#include "irq_impl.h" volatile unsigned long irq_err_count; DEFINE_PER_CPU(unsigned long, irq_pmi_count); @@ -60,7 +61,7 @@ int irq_select_affinity(unsigned int irq) cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0); last_cpu = cpu; - cpumask_copy(data->affinity, cpumask_of(cpu)); + irq_data_update_affinity(data, cpumask_of(cpu)); chip->irq_set_affinity(data, cpumask_of(cpu), false); return 0; } @@ -118,6 +119,6 @@ handle_irq(int irq) } irq_enter(); - generic_handle_irq_desc(irq, desc); + generic_handle_irq_desc(desc); irq_exit(); } diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c index f433fc11877a..d17e44c99df9 100644 --- a/arch/alpha/kernel/irq_alpha.c +++ b/arch/alpha/kernel/irq_alpha.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Alpha specific irq code. */ @@ -66,21 +67,7 @@ do_entInt(unsigned long type, unsigned long vector, break; case 1: old_regs = set_irq_regs(regs); -#ifdef CONFIG_SMP - { - long cpu; - - smp_percpu_timer_interrupt(regs); - cpu = smp_processor_id(); - if (cpu != boot_cpuid) { - kstat_incr_irqs_this_cpu(RTC_IRQ, irq_to_desc(RTC_IRQ)); - } else { - handle_irq(RTC_IRQ); - } - } -#else handle_irq(RTC_IRQ); -#endif set_irq_regs(old_regs); return; case 2: @@ -226,32 +213,13 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr, * The special RTC interrupt type. The interrupt itself was * processed by PALcode, and comes in via entInt vector 1. */ - -struct irqaction timer_irqaction = { - .handler = timer_interrupt, - .name = "timer", -}; - void __init -init_rtc_irq(void) +init_rtc_irq(irq_handler_t handler) { irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip, - handle_simple_irq, "RTC"); - setup_irq(RTC_IRQ, &timer_irqaction); + handle_percpu_irq, "RTC"); + if (!handler) + handler = rtc_timer_interrupt; + if (request_irq(RTC_IRQ, handler, 0, "timer", NULL)) + pr_err("Failed to register timer interrupt\n"); } - -/* Dummy irqactions. */ -struct irqaction isa_cascade_irqaction = { - .handler = no_action, - .name = "isa-cascade" -}; - -struct irqaction timer_cascade_irqaction = { - .handler = no_action, - .name = "timer-cascade" -}; - -struct irqaction halt_switch_irqaction = { - .handler = no_action, - .name = "halt-switch" -}; diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c index e1861c77dabc..29c6c477ac35 100644 --- a/arch/alpha/kernel/irq_i8259.c +++ b/arch/alpha/kernel/irq_i8259.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/irq_i8259.c * @@ -81,11 +82,6 @@ struct irq_chip i8259a_irq_type = { void __init init_i8259a_irqs(void) { - static struct irqaction cascade = { - .handler = no_action, - .name = "cascade", - }; - long i; outb(0xff, 0x21); /* mask all of 8259A-1 */ @@ -95,16 +91,13 @@ init_i8259a_irqs(void) irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq); } - setup_irq(2, &cascade); + if (request_irq(2, no_action, 0, "cascade", NULL)) + pr_err("Failed to request irq 2 (cascade)\n"); } #if defined(CONFIG_ALPHA_GENERIC) # define IACK_SC alpha_mv.iack_sc -#elif defined(CONFIG_ALPHA_APECS) -# define IACK_SC APECS_IACK_SC -#elif defined(CONFIG_ALPHA_LCA) -# define IACK_SC LCA_IACK_SC #elif defined(CONFIG_ALPHA_CIA) # define IACK_SC CIA_IACK_SC #elif defined(CONFIG_ALPHA_PYXIS) diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h index d507a234b05d..fbf21892e66d 100644 --- a/arch/alpha/kernel/irq_impl.h +++ b/arch/alpha/kernel/irq_impl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/arch/alpha/kernel/irq_impl.h * @@ -20,14 +21,9 @@ extern void isa_no_iack_sc_device_interrupt(unsigned long); extern void srm_device_interrupt(unsigned long); extern void pyxis_device_interrupt(unsigned long); -extern struct irqaction timer_irqaction; -extern struct irqaction isa_cascade_irqaction; -extern struct irqaction timer_cascade_irqaction; -extern struct irqaction halt_switch_irqaction; - extern void init_srm_irqs(long, unsigned long); extern void init_pyxis_irqs(unsigned long); -extern void init_rtc_irq(void); +extern void init_rtc_irq(irq_handler_t handler); extern void common_init_isa_dma(void); diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c index 13c97a5b31e8..27070b5bd33e 100644 --- a/arch/alpha/kernel/irq_pyxis.c +++ b/arch/alpha/kernel/irq_pyxis.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/irq_pyxis.c * @@ -106,5 +107,6 @@ init_pyxis_irqs(unsigned long ignore_mask) irq_set_status_flags(i, IRQ_LEVEL); } - setup_irq(16+7, &isa_cascade_irqaction); + if (request_irq(16 + 7, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c index a79fa30e7552..bfacd6a06194 100644 --- a/arch/alpha/kernel/irq_srm.c +++ b/arch/alpha/kernel/irq_srm.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Handle interrupts from the SRM, assuming no additional weirdness. */ diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h index 7fa62488bd16..129ae36b8e6d 100644 --- a/arch/alpha/kernel/machvec_impl.h +++ b/arch/alpha/kernel/machvec_impl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/arch/alpha/kernel/machvec_impl.h * @@ -6,8 +7,6 @@ * This file has goodies to help simplify instantiation of machine vectors. */ -#include <asm/pgalloc.h> - /* Whee. These systems don't have an HAE: IRONGATE, MARVEL, POLARIS, TSUNAMI, TITAN, WILDFIRE Fix things up for the GENERIC kernel by defining the HAE address @@ -43,38 +42,16 @@ #define CAT1(x,y) x##y #define CAT(x,y) CAT1(x,y) -#define DO_DEFAULT_RTC \ - .rtc_port = 0x70, \ - .rtc_get_time = common_get_rtc_time, \ - .rtc_set_time = common_set_rtc_time - -#define DO_EV4_MMU \ - .max_asn = EV4_MAX_ASN, \ - .mv_switch_mm = ev4_switch_mm, \ - .mv_activate_mm = ev4_activate_mm, \ - .mv_flush_tlb_current = ev4_flush_tlb_current, \ - .mv_flush_tlb_current_page = ev4_flush_tlb_current_page +#define DO_DEFAULT_RTC .rtc_port = 0x70 #define DO_EV5_MMU \ - .max_asn = EV5_MAX_ASN, \ - .mv_switch_mm = ev5_switch_mm, \ - .mv_activate_mm = ev5_activate_mm, \ - .mv_flush_tlb_current = ev5_flush_tlb_current, \ - .mv_flush_tlb_current_page = ev5_flush_tlb_current_page + .max_asn = EV5_MAX_ASN \ #define DO_EV6_MMU \ - .max_asn = EV6_MAX_ASN, \ - .mv_switch_mm = ev5_switch_mm, \ - .mv_activate_mm = ev5_activate_mm, \ - .mv_flush_tlb_current = ev5_flush_tlb_current, \ - .mv_flush_tlb_current_page = ev5_flush_tlb_current_page + .max_asn = EV6_MAX_ASN \ #define DO_EV7_MMU \ - .max_asn = EV6_MAX_ASN, \ - .mv_switch_mm = ev5_switch_mm, \ - .mv_activate_mm = ev5_activate_mm, \ - .mv_flush_tlb_current = ev5_flush_tlb_current, \ - .mv_flush_tlb_current_page = ev5_flush_tlb_current_page + .max_asn = EV6_MAX_ASN \ #define IO_LITE(UP,low) \ .hae_register = (unsigned long *) CAT(UP,_HAE_ADDRESS), \ @@ -82,9 +59,11 @@ .mv_ioread8 = CAT(low,_ioread8), \ .mv_ioread16 = CAT(low,_ioread16), \ .mv_ioread32 = CAT(low,_ioread32), \ + .mv_ioread64 = CAT(low,_ioread64), \ .mv_iowrite8 = CAT(low,_iowrite8), \ .mv_iowrite16 = CAT(low,_iowrite16), \ .mv_iowrite32 = CAT(low,_iowrite32), \ + .mv_iowrite64 = CAT(low,_iowrite64), \ .mv_readb = CAT(low,_readb), \ .mv_readw = CAT(low,_readw), \ .mv_readl = CAT(low,_readl), \ @@ -140,16 +119,18 @@ #define __initmv __initdata #define ALIAS_MV(x) #else -#define __initmv __initdata_refok +#define __initmv __refdata /* GCC actually has a syntax for defining aliases, but is under some delusion that you shouldn't be able to declare it extern somewhere else beforehand. Fine. We'll do it ourselves. */ #if 0 #define ALIAS_MV(system) \ - struct alpha_machine_vector alpha_mv __attribute__((alias(#system "_mv"))); + struct alpha_machine_vector alpha_mv __attribute__((alias(#system "_mv"))); \ + EXPORT_SYMBOL(alpha_mv); #else #define ALIAS_MV(system) \ - asm(".global alpha_mv\nalpha_mv = " #system "_mv"); + asm(".global alpha_mv\nalpha_mv = " #system "_mv"); \ + EXPORT_SYMBOL(alpha_mv); #endif #endif /* GENERIC */ diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c index 2fd00b7077e4..cbefa5a77384 100644 --- a/arch/alpha/kernel/module.c +++ b/arch/alpha/kernel/module.c @@ -1,19 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* Kernel module help for Alpha. Copyright (C) 2002 Richard Henderson. - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/moduleloader.h> #include <linux/elf.h> @@ -158,10 +146,8 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, base = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr; symtab = (Elf64_Sym *)sechdrs[symindex].sh_addr; - /* The small sections were sorted to the end of the segment. - The following should definitely cover them. */ - gp = (u64)me->module_core + me->core_size - 0x8000; got = sechdrs[me->arch.gotsecindex].sh_addr; + gp = got + 0x8000; for (i = 0; i < n; i++) { unsigned long r_sym = ELF64_R_SYM (rela[i].r_info); @@ -181,6 +167,9 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, switch (r_type) { case R_ALPHA_NONE: break; + case R_ALPHA_REFLONG: + *(u32 *)location = value; + break; case R_ALPHA_REFQUAD: /* BUG() can produce misaligned relocations. */ ((u32 *)location)[0] = value; @@ -221,7 +210,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, STO_ALPHA_STD_GPLOAD) /* Omit the prologue. */ value += 8; - /* FALLTHRU */ + fallthrough; case R_ALPHA_BRADDR: value -= (u64)location + 4; if (value & 3) diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 1402fcc11c2c..a08e8edef1a4 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/osf_sys.c * @@ -11,7 +12,10 @@ */ #include <linux/errno.h> -#include <linux/sched.h> +#include <linux/sched/signal.h> +#include <linux/sched/mm.h> +#include <linux/sched/task_stack.h> +#include <linux/sched/cputime.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/smp.h> @@ -32,6 +36,7 @@ #include <linux/types.h> #include <linux/ipc.h> #include <linux/namei.h> +#include <linux/mount.h> #include <linux/uio.h> #include <linux/vfs.h> #include <linux/rcupdate.h> @@ -39,7 +44,7 @@ #include <asm/fpu.h> #include <asm/io.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/sysinfo.h> #include <asm/thread_info.h> #include <asm/hwrpb.h> @@ -92,7 +97,7 @@ struct osf_dirent { unsigned int d_ino; unsigned short d_reclen; unsigned short d_namlen; - char d_name[1]; + char d_name[]; }; struct osf_dirent_callback { @@ -103,22 +108,23 @@ struct osf_dirent_callback { int error; }; -static int -osf_filldir(void *__buf, const char *name, int namlen, loff_t offset, - u64 ino, unsigned int d_type) +static bool +osf_filldir(struct dir_context *ctx, const char *name, int namlen, + loff_t offset, u64 ino, unsigned int d_type) { struct osf_dirent __user *dirent; - struct osf_dirent_callback *buf = (struct osf_dirent_callback *) __buf; + struct osf_dirent_callback *buf = + container_of(ctx, struct osf_dirent_callback, ctx); unsigned int reclen = ALIGN(NAME_OFFSET + namlen + 1, sizeof(u32)); unsigned int d_ino; buf->error = -EINVAL; /* only used if we fail */ if (reclen > buf->count) - return -EINVAL; + return false; d_ino = ino; if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { buf->error = -EOVERFLOW; - return -EOVERFLOW; + return false; } if (buf->basep) { if (put_user(offset, buf->basep)) @@ -135,10 +141,10 @@ osf_filldir(void *__buf, const char *name, int namlen, loff_t offset, dirent = (void __user *)dirent + reclen; buf->dirent = dirent; buf->count -= reclen; - return 0; + return true; Efault: buf->error = -EFAULT; - return -EFAULT; + return false; } SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, @@ -146,7 +152,7 @@ SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, long __user *, basep) { int error; - struct fd arg = fdget(fd); + CLASS(fd_pos, arg)(fd); struct osf_dirent_callback buf = { .ctx.actor = osf_filldir, .dirent = dirent, @@ -154,16 +160,15 @@ SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, .count = count }; - if (!arg.file) + if (fd_empty(arg)) return -EBADF; - error = iterate_dir(arg.file, &buf.ctx); + error = iterate_dir(fd_file(arg), &buf.ctx); if (error >= 0) error = buf.error; if (count != buf.count) error = count - buf.count; - fdput(arg); return error; } @@ -184,7 +189,7 @@ SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, goto out; if (off & ~PAGE_MASK) goto out; - ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); + ret = ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); out: return ret; } @@ -446,7 +451,8 @@ struct procfs_args { * unhappy with OSF UFS. [CHECKME] */ static int -osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags) +osf_ufs_mount(const char __user *dirname, + struct ufs_args __user *args, int flags) { int retval; struct cdfs_args tmp; @@ -466,7 +472,8 @@ osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags) } static int -osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags) +osf_cdfs_mount(const char __user *dirname, + struct cdfs_args __user *args, int flags) { int retval; struct cdfs_args tmp; @@ -486,7 +493,8 @@ osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags) } static int -osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags) +osf_procfs_mount(const char __user *dirname, + struct procfs_args __user *args, int flags) { struct procfs_args tmp; @@ -500,52 +508,40 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, int, flag, void __user *, data) { int retval; - struct filename *name; - name = getname(path); - retval = PTR_ERR(name); - if (IS_ERR(name)) - goto out; switch (typenr) { case 1: - retval = osf_ufs_mount(name->name, data, flag); + retval = osf_ufs_mount(path, data, flag); break; case 6: - retval = osf_cdfs_mount(name->name, data, flag); + retval = osf_cdfs_mount(path, data, flag); break; case 9: - retval = osf_procfs_mount(name->name, data, flag); + retval = osf_procfs_mount(path, data, flag); break; default: retval = -EINVAL; - printk("osf_mount(%ld, %x)\n", typenr, flag); + printk_ratelimited("osf_mount(%ld, %x)\n", typenr, flag); } - putname(name); - out: + return retval; } SYSCALL_DEFINE1(osf_utsname, char __user *, name) { - int error; + char tmp[5 * 32]; down_read(&uts_sem); - error = -EFAULT; - if (copy_to_user(name + 0, utsname()->sysname, 32)) - goto out; - if (copy_to_user(name + 32, utsname()->nodename, 32)) - goto out; - if (copy_to_user(name + 64, utsname()->release, 32)) - goto out; - if (copy_to_user(name + 96, utsname()->version, 32)) - goto out; - if (copy_to_user(name + 128, utsname()->machine, 32)) - goto out; + memcpy(tmp + 0 * 32, utsname()->sysname, 32); + memcpy(tmp + 1 * 32, utsname()->nodename, 32); + memcpy(tmp + 2 * 32, utsname()->release, 32); + memcpy(tmp + 3 * 32, utsname()->version, 32); + memcpy(tmp + 4 * 32, utsname()->machine, 32); + up_read(&uts_sem); - error = 0; - out: - up_read(&uts_sem); - return error; + if (copy_to_user(name, tmp, sizeof(tmp))) + return -EFAULT; + return 0; } SYSCALL_DEFINE0(getpagesize) @@ -563,24 +559,22 @@ SYSCALL_DEFINE0(getdtablesize) */ SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) { - unsigned len; - int i; - - if (!access_ok(VERIFY_WRITE, name, namelen)) - return -EFAULT; + int len; + char *kname; + char tmp[32]; - len = namelen; - if (len > 32) - len = 32; + if (namelen < 0 || namelen > 32) + namelen = 32; down_read(&uts_sem); - for (i = 0; i < len; ++i) { - __put_user(utsname()->domainname[i], name + i); - if (utsname()->domainname[i] == '\0') - break; - } + kname = utsname()->domainname; + len = strnlen(kname, namelen); + len = min(len + 1, namelen); + memcpy(tmp, kname, len); up_read(&uts_sem); + if (copy_to_user(name, tmp, len)) + return -EFAULT; return 0; } @@ -683,7 +677,7 @@ SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, default: error = -EOPNOTSUPP; break; - }; + } return error; } @@ -717,9 +711,8 @@ SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss, if (uoss) { error = -EFAULT; - if (! access_ok(VERIFY_WRITE, uoss, sizeof(*uoss)) - || __put_user(oss_sp, &uoss->ss_sp) - || __put_user(oss_os, &uoss->ss_onstack)) + if (put_user(oss_sp, &uoss->ss_sp) || + put_user(oss_os, &uoss->ss_onstack)) goto out; } @@ -743,13 +736,14 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) }; unsigned long offset; const char *res; - long len, err = -EINVAL; + long len; + char tmp[__NEW_UTS_LEN + 1]; offset = command-1; if (offset >= ARRAY_SIZE(sysinfo_table)) { /* Digital UNIX has a few unpublished interfaces here */ printk("sysinfo(%d)", command); - goto out; + return -EINVAL; } down_read(&uts_sem); @@ -757,13 +751,11 @@ SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) len = strlen(res)+1; if ((unsigned long)len > (unsigned long)count) len = count; - if (copy_to_user(buf, res, len)) - err = -EFAULT; - else - err = 0; + memcpy(tmp, res, len); up_read(&uts_sem); - out: - return err; + if (copy_to_user(buf, tmp, len)) + return -EFAULT; + return 0; } SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, @@ -842,7 +834,7 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, return -EFAULT; state = ¤t_thread_info()->ieee_state; - /* Update softare trap enable bits. */ + /* Update software trap enable bits. */ *state = (*state & ~IEEE_SW_MASK) | (swcr & IEEE_SW_MASK); /* Update the real fpcr. */ @@ -862,7 +854,7 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, state = ¤t_thread_info()->ieee_state; exc &= IEEE_STATUS_MASK; - /* Update softare trap enable bits. */ + /* Update software trap enable bits. */ swcr = (*state & IEEE_SW_MASK) | exc; *state |= exc; @@ -875,8 +867,7 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, send a signal. Old exceptions are not signaled. */ fex = (exc >> IEEE_STATUS_TO_EXCSUM_SHIFT) & swcr; if (fex) { - siginfo_t info; - int si_code = 0; + int si_code = FPE_FLTUNK; if (fex & IEEE_TRAP_ENABLE_DNO) si_code = FPE_FLTUND; if (fex & IEEE_TRAP_ENABLE_INE) si_code = FPE_FLTRES; @@ -885,11 +876,9 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, if (fex & IEEE_TRAP_ENABLE_DZE) si_code = FPE_FLTDIV; if (fex & IEEE_TRAP_ENABLE_INV) si_code = FPE_FLTINV; - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_code = si_code; - info.si_addr = NULL; /* FIXME */ - send_sig_info(SIGFPE, &info, current); + send_sig_fault_trapno(SIGFPE, si_code, + (void __user *)NULL, /* FIXME */ + 0, current); } return 0; } @@ -954,39 +943,32 @@ struct itimerval32 }; static inline long -get_tv32(struct timeval *o, struct timeval32 __user *i) +get_tv32(struct timespec64 *o, struct timeval32 __user *i) { - return (!access_ok(VERIFY_READ, i, sizeof(*i)) || - (__get_user(o->tv_sec, &i->tv_sec) | - __get_user(o->tv_usec, &i->tv_usec))); -} - -static inline long -put_tv32(struct timeval32 __user *o, struct timeval *i) -{ - return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || - (__put_user(i->tv_sec, &o->tv_sec) | - __put_user(i->tv_usec, &o->tv_usec))); + struct timeval32 tv; + if (copy_from_user(&tv, i, sizeof(struct timeval32))) + return -EFAULT; + o->tv_sec = tv.tv_sec; + o->tv_nsec = tv.tv_usec * NSEC_PER_USEC; + return 0; } static inline long -get_it32(struct itimerval *o, struct itimerval32 __user *i) +put_tv32(struct timeval32 __user *o, struct timespec64 *i) { - return (!access_ok(VERIFY_READ, i, sizeof(*i)) || - (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) | - __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) | - __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) | - __get_user(o->it_value.tv_usec, &i->it_value.tv_usec))); + return copy_to_user(o, &(struct timeval32){ + .tv_sec = i->tv_sec, + .tv_usec = i->tv_nsec / NSEC_PER_USEC}, + sizeof(struct timeval32)); } static inline long -put_it32(struct itimerval32 __user *o, struct itimerval *i) +put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i) { - return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) || - (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) | - __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) | - __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) | - __put_user(i->it_value.tv_usec, &o->it_value.tv_usec))); + return copy_to_user(o, &(struct timeval32){ + .tv_sec = i->tv_sec, + .tv_usec = i->tv_usec}, + sizeof(struct timeval32)); } static inline void @@ -1000,9 +982,10 @@ SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, struct timezone __user *, tz) { if (tv) { - struct timeval ktv; - do_gettimeofday(&ktv); - if (put_tv32(tv, &ktv)) + struct timespec64 kts; + + ktime_get_real_ts64(&kts); + if (put_tv32(tv, &kts)) return -EFAULT; } if (tz) { @@ -1015,11 +998,11 @@ SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, struct timezone __user *, tz) { - struct timespec kts; + struct timespec64 kts; struct timezone ktz; if (tv) { - if (get_tv32((struct timeval *)&kts, tv)) + if (get_tv32(&kts, tv)) return -EFAULT; } if (tz) { @@ -1027,65 +1010,22 @@ SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, return -EFAULT; } - kts.tv_nsec *= 1000; - - return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); -} - -SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it) -{ - struct itimerval kit; - int error; - - error = do_getitimer(which, &kit); - if (!error && put_it32(it, &kit)) - error = -EFAULT; - - return error; -} - -SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in, - struct itimerval32 __user *, out) -{ - struct itimerval kin, kout; - int error; - - if (in) { - if (get_it32(&kin, in)) - return -EFAULT; - } else - memset(&kin, 0, sizeof(kin)); - - error = do_setitimer(which, &kin, out ? &kout : NULL); - if (error || !out) - return error; - - if (put_it32(out, &kout)) - return -EFAULT; - - return 0; - + return do_sys_settimeofday64(tv ? &kts : NULL, tz ? &ktz : NULL); } SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, struct timeval32 __user *, tvs) { - struct timespec tv[2]; + struct timespec64 tv[2]; if (tvs) { - struct timeval ktvs[2]; - if (get_tv32(&ktvs[0], &tvs[0]) || - get_tv32(&ktvs[1], &tvs[1])) + if (get_tv32(&tv[0], &tvs[0]) || + get_tv32(&tv[1], &tvs[1])) return -EFAULT; - if (ktvs[0].tv_usec < 0 || ktvs[0].tv_usec >= 1000000 || - ktvs[1].tv_usec < 0 || ktvs[1].tv_usec >= 1000000) + if (tv[0].tv_nsec < 0 || tv[0].tv_nsec >= 1000000000 || + tv[1].tv_nsec < 0 || tv[1].tv_nsec >= 1000000000) return -EINVAL; - - tv[0].tv_sec = ktvs[0].tv_sec; - tv[0].tv_nsec = 1000 * ktvs[0].tv_usec; - tv[1].tv_sec = ktvs[1].tv_sec; - tv[1].tv_nsec = 1000 * ktvs[1].tv_usec; } return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0); @@ -1094,22 +1034,18 @@ SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp, fd_set __user *, exp, struct timeval32 __user *, tvp) { - struct timespec end_time, *to = NULL; + struct timespec64 end_time, *to = NULL; if (tvp) { - time_t sec, usec; - + struct timespec64 tv; to = &end_time; - if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp)) - || __get_user(sec, &tvp->tv_sec) - || __get_user(usec, &tvp->tv_usec)) { + if (get_tv32(&tv, tvp)) return -EFAULT; - } - if (sec < 0 || usec < 0) + if (tv.tv_sec < 0 || tv.tv_nsec < 0) return -EINVAL; - if (poll_select_set_timeout(to, sec, usec * NSEC_PER_USEC)) + if (poll_select_set_timeout(to, tv.tv_sec, tv.tv_nsec)) return -EINVAL; } @@ -1140,7 +1076,8 @@ struct rusage32 { SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) { struct rusage32 r; - cputime_t utime, stime; + u64 utime, stime; + unsigned long utime_jiffies, stime_jiffies; if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) return -EINVAL; @@ -1149,14 +1086,18 @@ SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) switch (who) { case RUSAGE_SELF: task_cputime(current, &utime, &stime); - jiffies_to_timeval32(utime, &r.ru_utime); - jiffies_to_timeval32(stime, &r.ru_stime); + utime_jiffies = nsecs_to_jiffies(utime); + stime_jiffies = nsecs_to_jiffies(stime); + jiffies_to_timeval32(utime_jiffies, &r.ru_utime); + jiffies_to_timeval32(stime_jiffies, &r.ru_stime); r.ru_minflt = current->min_flt; r.ru_majflt = current->maj_flt; break; case RUSAGE_CHILDREN: - jiffies_to_timeval32(current->signal->cutime, &r.ru_utime); - jiffies_to_timeval32(current->signal->cstime, &r.ru_stime); + utime_jiffies = nsecs_to_jiffies(current->signal->cutime); + stime_jiffies = nsecs_to_jiffies(current->signal->cstime); + jiffies_to_timeval32(utime_jiffies, &r.ru_utime); + jiffies_to_timeval32(stime_jiffies, &r.ru_stime); r.ru_minflt = current->signal->cmin_flt; r.ru_majflt = current->signal->cmaj_flt; break; @@ -1169,45 +1110,19 @@ SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, struct rusage32 __user *, ur) { struct rusage r; - long ret, err; - unsigned int status = 0; - mm_segment_t old_fs; - + long err = kernel_wait4(pid, ustatus, options, &r); + if (err <= 0) + return err; if (!ur) - return sys_wait4(pid, ustatus, options, NULL); - - old_fs = get_fs(); - - set_fs (KERNEL_DS); - ret = sys_wait4(pid, (unsigned int __user *) &status, options, - (struct rusage __user *) &r); - set_fs (old_fs); - - if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur))) + return err; + if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime)) return -EFAULT; - - err = 0; - err |= put_user(status, ustatus); - err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec); - err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec); - err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec); - err |= __put_user(r.ru_stime.tv_usec, &ur->ru_stime.tv_usec); - err |= __put_user(r.ru_maxrss, &ur->ru_maxrss); - err |= __put_user(r.ru_ixrss, &ur->ru_ixrss); - err |= __put_user(r.ru_idrss, &ur->ru_idrss); - err |= __put_user(r.ru_isrss, &ur->ru_isrss); - err |= __put_user(r.ru_minflt, &ur->ru_minflt); - err |= __put_user(r.ru_majflt, &ur->ru_majflt); - err |= __put_user(r.ru_nswap, &ur->ru_nswap); - err |= __put_user(r.ru_inblock, &ur->ru_inblock); - err |= __put_user(r.ru_oublock, &ur->ru_oublock); - err |= __put_user(r.ru_msgsnd, &ur->ru_msgsnd); - err |= __put_user(r.ru_msgrcv, &ur->ru_msgrcv); - err |= __put_user(r.ru_nsignals, &ur->ru_nsignals); - err |= __put_user(r.ru_nvcsw, &ur->ru_nvcsw); - err |= __put_user(r.ru_nivcsw, &ur->ru_nivcsw); - - return err ? err : ret; + if (put_tv_to_tv32(&ur->ru_stime, &r.ru_stime)) + return -EFAULT; + if (copy_to_user(&ur->ru_maxrss, &r.ru_maxrss, + sizeof(struct rusage32) - offsetof(struct rusage32, ru_maxrss))) + return -EFAULT; + return err; } /* @@ -1218,18 +1133,18 @@ SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep, struct timeval32 __user *, remain) { - struct timeval tmp; + struct timespec64 tmp; unsigned long ticks; if (get_tv32(&tmp, sleep)) goto fault; - ticks = timeval_to_jiffies(&tmp); + ticks = timespec64_to_jiffies(&tmp); ticks = schedule_timeout_interruptible(ticks); if (remain) { - jiffies_to_timeval(ticks, &tmp); + jiffies_to_timespec64(ticks, &tmp); if (put_tv32(remain, &tmp)) goto fault; } @@ -1271,13 +1186,13 @@ struct timex32 { SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) { - struct timex txc; + struct __kernel_timex txc; int ret; /* copy relevant bits of struct timex. */ if (copy_from_user(&txc, txc_p, offsetof(struct timex32, time)) || copy_from_user(&txc.tick, &txc_p->tick, sizeof(struct timex32) - - offsetof(struct timex32, time))) + offsetof(struct timex32, tick))) return -EFAULT; ret = do_adjtimex(&txc); @@ -1288,42 +1203,33 @@ SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) if (copy_to_user(txc_p, &txc, offsetof(struct timex32, time)) || (copy_to_user(&txc_p->tick, &txc.tick, sizeof(struct timex32) - offsetof(struct timex32, tick))) || - (put_tv32(&txc_p->time, &txc.time))) + (put_user(txc.time.tv_sec, &txc_p->time.tv_sec)) || + (put_user(txc.time.tv_usec, &txc_p->time.tv_usec))) return -EFAULT; return ret; } -/* Get an address range which is currently unmapped. Similar to the - generic version except that we know how to honor ADDR_LIMIT_32BIT. */ +/* Get an address range which is currently unmapped. */ static unsigned long arch_get_unmapped_area_1(unsigned long addr, unsigned long len, unsigned long limit) { - struct vm_unmapped_area_info info; + struct vm_unmapped_area_info info = {}; - info.flags = 0; info.length = len; info.low_limit = addr; info.high_limit = limit; - info.align_mask = 0; - info.align_offset = 0; return vm_unmapped_area(&info); } unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, - unsigned long flags) + unsigned long flags, vm_flags_t vm_flags) { - unsigned long limit; - - /* "32 bit" actually means 31 bit, since pointers sign extend. */ - if (current->personality & ADDR_LIMIT_32BIT) - limit = 0x80000000; - else - limit = TASK_SIZE; + unsigned long limit = TASK_SIZE; if (len > limit) return -ENOMEM; @@ -1359,45 +1265,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr, return addr; } -#ifdef CONFIG_OSF4_COMPAT - -/* Clear top 32 bits of iov_len in the user's buffer for - compatibility with old versions of OSF/1 where iov_len - was defined as int. */ -static int -osf_fix_iov_len(const struct iovec __user *iov, unsigned long count) -{ - unsigned long i; - - for (i = 0 ; i < count ; i++) { - int __user *iov_len_high = (int __user *)&iov[i].iov_len + 1; - - if (put_user(0, iov_len_high)) - return -EFAULT; - } - return 0; -} - -SYSCALL_DEFINE3(osf_readv, unsigned long, fd, - const struct iovec __user *, vector, unsigned long, count) -{ - if (unlikely(personality(current->personality) == PER_OSF4)) - if (osf_fix_iov_len(vector, count)) - return -EFAULT; - return sys_readv(fd, vector, count); -} - -SYSCALL_DEFINE3(osf_writev, unsigned long, fd, - const struct iovec __user *, vector, unsigned long, count) -{ - if (unlikely(personality(current->personality) == PER_OSF4)) - if (osf_fix_iov_len(vector, count)) - return -EFAULT; - return sys_writev(fd, vector, count); -} - -#endif - SYSCALL_DEFINE2(osf_getpriority, int, which, int, who) { int prio = sys_getpriority(which, who); diff --git a/arch/alpha/kernel/pc873xx.c b/arch/alpha/kernel/pc873xx.c index 27dcbff85613..82b19c9e59d6 100644 --- a/arch/alpha/kernel/pc873xx.c +++ b/arch/alpha/kernel/pc873xx.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/ioport.h> #include <asm/io.h> @@ -12,12 +13,12 @@ static char *pc873xx_names[] = { static unsigned int base, model; -unsigned int __init pc873xx_get_base() +unsigned int __init pc873xx_get_base(void) { return base; } -char *__init pc873xx_get_model() +char *__init pc873xx_get_model(void) { return pc873xx_names[model]; } diff --git a/arch/alpha/kernel/pc873xx.h b/arch/alpha/kernel/pc873xx.h index 25e16956fe3e..043533027573 100644 --- a/arch/alpha/kernel/pc873xx.h +++ b/arch/alpha/kernel/pc873xx.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _PC873xx_H_ #define _PC873xx_H_ diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c deleted file mode 100644 index df24b76f9246..000000000000 --- a/arch/alpha/kernel/pci-noop.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * linux/arch/alpha/kernel/pci-noop.c - * - * Stub PCI interfaces for Jensen-specific kernels. - */ - -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/gfp.h> -#include <linux/capability.h> -#include <linux/mm.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/dma-mapping.h> -#include <linux/scatterlist.h> - -#include "proto.h" - - -/* - * The PCI controller list. - */ - -struct pci_controller *hose_head, **hose_tail = &hose_head; -struct pci_controller *pci_isa_hose; - - -struct pci_controller * __init -alloc_pci_controller(void) -{ - struct pci_controller *hose; - - hose = alloc_bootmem(sizeof(*hose)); - - *hose_tail = hose; - hose_tail = &hose->next; - - return hose; -} - -struct resource * __init -alloc_resource(void) -{ - struct resource *res; - - res = alloc_bootmem(sizeof(*res)); - - return res; -} - -asmlinkage long -sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn) -{ - struct pci_controller *hose; - - /* from hose or from bus.devfn */ - if (which & IOBASE_FROM_HOSE) { - for (hose = hose_head; hose; hose = hose->next) - if (hose->index == bus) - break; - if (!hose) - return -ENODEV; - } else { - /* Special hook for ISA access. */ - if (bus == 0 && dfn == 0) - hose = pci_isa_hose; - else - return -ENODEV; - } - - switch (which & ~IOBASE_FROM_HOSE) { - case IOBASE_HOSE: - return hose->index; - case IOBASE_SPARSE_MEM: - return hose->sparse_mem_base; - case IOBASE_DENSE_MEM: - return hose->dense_mem_base; - case IOBASE_SPARSE_IO: - return hose->sparse_io_base; - case IOBASE_DENSE_IO: - return hose->dense_io_base; - case IOBASE_ROOT_BUS: - return hose->bus->number; - } - - return -EOPNOTSUPP; -} - -asmlinkage long -sys_pciconfig_read(unsigned long bus, unsigned long dfn, - unsigned long off, unsigned long len, void *buf) -{ - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - else - return -ENODEV; -} - -asmlinkage long -sys_pciconfig_write(unsigned long bus, unsigned long dfn, - unsigned long off, unsigned long len, void *buf) -{ - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - else - return -ENODEV; -} - -static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, - struct dma_attrs *attrs) -{ - void *ret; - - if (!dev || *dev->dma_mask >= 0xffffffffUL) - gfp &= ~GFP_DMA; - ret = (void *)__get_free_pages(gfp, get_order(size)); - if (ret) { - memset(ret, 0, size); - *dma_handle = virt_to_phys(ret); - } - return ret; -} - -static void alpha_noop_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_addr, - struct dma_attrs *attrs) -{ - free_pages((unsigned long)cpu_addr, get_order(size)); -} - -static dma_addr_t alpha_noop_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir, - struct dma_attrs *attrs) -{ - return page_to_pa(page) + offset; -} - -static int alpha_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents, - enum dma_data_direction dir, struct dma_attrs *attrs) -{ - int i; - struct scatterlist *sg; - - for_each_sg(sgl, sg, nents, i) { - void *va; - - BUG_ON(!sg_page(sg)); - va = sg_virt(sg); - sg_dma_address(sg) = (dma_addr_t)virt_to_phys(va); - sg_dma_len(sg) = sg->length; - } - - return nents; -} - -static int alpha_noop_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return 0; -} - -static int alpha_noop_supported(struct device *dev, u64 mask) -{ - return mask < 0x00ffffffUL ? 0 : 1; -} - -static int alpha_noop_set_mask(struct device *dev, u64 mask) -{ - if (!dev->dma_mask || !dma_supported(dev, mask)) - return -EIO; - - *dev->dma_mask = mask; - return 0; -} - -struct dma_map_ops alpha_noop_ops = { - .alloc = alpha_noop_alloc_coherent, - .free = alpha_noop_free_coherent, - .map_page = alpha_noop_map_page, - .map_sg = alpha_noop_map_sg, - .mapping_error = alpha_noop_mapping_error, - .dma_supported = alpha_noop_supported, - .set_dma_mask = alpha_noop_set_mask, -}; - -struct dma_map_ops *dma_ops = &alpha_noop_ops; -EXPORT_SYMBOL(dma_ops); diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c index 2b183b0d3207..3048758304b5 100644 --- a/arch/alpha/kernel/pci-sysfs.c +++ b/arch/alpha/kernel/pci-sysfs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/kernel/pci-sysfs.c * @@ -38,7 +39,7 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num, unsigned long nr, start, size; int shift = sparse ? 5 : 0; - nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + nr = vma_pages(vma); start = vma->vm_pgoff; size = ((pci_resource_len(pdev, num) - 1) >> (PAGE_SHIFT - shift)) + 1; @@ -59,31 +60,32 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num, * @sparse: address space type * * Use the bus mapping routines to map a PCI resource into userspace. + * + * Return: %0 on success, negative error code otherwise */ static int pci_mmap_resource(struct kobject *kobj, - struct bin_attribute *attr, + const struct bin_attribute *attr, struct vm_area_struct *vma, int sparse) { - struct pci_dev *pdev = to_pci_dev(container_of(kobj, - struct device, kobj)); + struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj)); struct resource *res = attr->private; enum pci_mmap_state mmap_type; struct pci_bus_region bar; int i; - for (i = 0; i < PCI_ROM_RESOURCE; i++) + for (i = 0; i < PCI_STD_NUM_BARS; i++) if (res == &pdev->resource[i]) break; - if (i >= PCI_ROM_RESOURCE) + if (i >= PCI_STD_NUM_BARS) return -ENODEV; - if (!__pci_mmap_fits(pdev, i, vma, sparse)) + if (res->flags & IORESOURCE_MEM && iomem_is_exclusive(res->start)) return -EINVAL; - if (iomem_is_exclusive(res->start)) + if (!__pci_mmap_fits(pdev, i, vma, sparse)) return -EINVAL; - pcibios_resource_to_bus(pdev, &bar, res); + pcibios_resource_to_bus(pdev->bus, &bar, res); vma->vm_pgoff += bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0)); mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io; @@ -91,14 +93,14 @@ static int pci_mmap_resource(struct kobject *kobj, } static int pci_mmap_resource_sparse(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, + const struct bin_attribute *attr, struct vm_area_struct *vma) { return pci_mmap_resource(kobj, attr, vma, 1); } static int pci_mmap_resource_dense(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, + const struct bin_attribute *attr, struct vm_area_struct *vma) { return pci_mmap_resource(kobj, attr, vma, 0); @@ -106,7 +108,7 @@ static int pci_mmap_resource_dense(struct file *filp, struct kobject *kobj, /** * pci_remove_resource_files - cleanup resource files - * @dev: dev to cleanup + * @pdev: pci_dev to cleanup * * If we created resource files for @dev, remove them from sysfs and * free their resources. @@ -115,7 +117,7 @@ void pci_remove_resource_files(struct pci_dev *pdev) { int i; - for (i = 0; i < PCI_ROM_RESOURCE; i++) { + for (i = 0; i < PCI_STD_NUM_BARS; i++) { struct bin_attribute *res_attr; res_attr = pdev->res_attr[i]; @@ -139,7 +141,7 @@ static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num) long dense_offset; unsigned long sparse_size; - pcibios_resource_to_bus(pdev, &bar, &pdev->resource[num]); + pcibios_resource_to_bus(pdev->bus, &bar, &pdev->resource[num]); /* All core logic chips have 4G sparse address space, except CIA which has 16G (see xxx_SPARSE_MEM and xxx_DENSE_MEM @@ -221,10 +223,12 @@ static int pci_create_attr(struct pci_dev *pdev, int num) } /** - * pci_create_resource_files - create resource files in sysfs for @dev - * @dev: dev in question + * pci_create_resource_files - create resource files in sysfs for @pdev + * @pdev: pci_dev in question * * Walk the resources in @dev creating files for each resource available. + * + * Return: %0 on success, or negative error code */ int pci_create_resource_files(struct pci_dev *pdev) { @@ -232,7 +236,7 @@ int pci_create_resource_files(struct pci_dev *pdev) int retval; /* Expose the PCI resources from this device as files */ - for (i = 0; i < PCI_ROM_RESOURCE; i++) { + for (i = 0; i < PCI_STD_NUM_BARS; i++) { /* skip empty resources */ if (!pci_resource_len(pdev, i)) @@ -255,7 +259,7 @@ static int __legacy_mmap_fits(struct pci_controller *hose, { unsigned long nr, start, size; - nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + nr = vma_pages(vma); start = vma->vm_pgoff; size = ((res_size - 1) >> PAGE_SHIFT) + 1; @@ -296,7 +300,7 @@ int pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma, /** * pci_adjust_legacy_attr - adjustment of legacy file attributes - * @b: bus to create files under + * @bus: bus to create files under * @mmap_type: I/O port or memory * * Adjust file name and size for sparse mappings. diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index edb4e0097b75..8e9b4ac86b7e 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/pci.c * @@ -17,10 +18,11 @@ #include <linux/init.h> #include <linux/ioport.h> #include <linux/kernel.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/module.h> #include <linux/cache.h> #include <linux/slab.h> +#include <linux/syscalls.h> #include <asm/machvec.h> #include "proto.h" @@ -196,9 +198,16 @@ pcibios_init(void) subsys_initcall(pcibios_init); #ifdef ALPHA_RESTORE_SRM_SETUP +/* Store PCI device configuration left by SRM here. */ +struct pdev_srm_saved_conf +{ + struct pdev_srm_saved_conf *next; + struct pci_dev *dev; +}; + static struct pdev_srm_saved_conf *srm_saved_configs; -void pdev_save_srm_config(struct pci_dev *dev) +static void pdev_save_srm_config(struct pci_dev *dev) { struct pdev_srm_saved_conf *tmp; static int printed = 0; @@ -238,6 +247,8 @@ pci_restore_srm_config(void) pci_restore_state(tmp->dev); } } +#else +#define pdev_save_srm_config(dev) do {} while (0) #endif void pcibios_fixup_bus(struct pci_bus *bus) @@ -245,21 +256,15 @@ void pcibios_fixup_bus(struct pci_bus *bus) struct pci_dev *dev = bus->self; if (pci_has_flag(PCI_PROBE_ONLY) && dev && - (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { - pci_read_bridge_bases(bus); - } + (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { + pci_read_bridge_bases(bus); + } list_for_each_entry(dev, &bus->devices, bus_list) { pdev_save_srm_config(dev); } } -int -pcibios_enable_device(struct pci_dev *dev, int mask) -{ - return pci_enable_resources(dev, mask); -} - /* * If we set up a device for bus mastering, we need to check the latency * timer as certain firmware forgets to set it properly, as seen @@ -283,16 +288,19 @@ pcibios_claim_one_bus(struct pci_bus *b) struct pci_bus *child_bus; list_for_each_entry(dev, &b->devices, bus_list) { + struct resource *r; int i; - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; - + pci_dev_for_each_resource(dev, r, i) { if (r->parent || !r->start || !r->flags) continue; if (pci_has_flag(PCI_PROBE_ONLY) || - (r->flags & IORESOURCE_PCI_FIXED)) - pci_claim_resource(dev, i); + (r->flags & IORESOURCE_PCI_FIXED)) { + if (pci_claim_resource(dev, i) == 0) + continue; + + pci_claim_bridge_resource(dev, i); + } } } @@ -314,8 +322,9 @@ common_init_pci(void) { struct pci_controller *hose; struct list_head resources; + struct pci_host_bridge *bridge; struct pci_bus *bus; - int next_busno; + int ret, next_busno; int need_domain_info = 0; u32 pci_mem_end; u32 sg_base; @@ -338,9 +347,25 @@ common_init_pci(void) pci_add_resource_offset(&resources, hose->mem_space, hose->mem_space->start); - bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops, - hose, &resources); - hose->bus = bus; + bridge = pci_alloc_host_bridge(0); + if (!bridge) + continue; + + list_splice_init(&resources, &bridge->windows); + bridge->dev.parent = NULL; + bridge->sysdata = hose; + bridge->busnr = next_busno; + bridge->ops = alpha_mv.pci_ops; + bridge->swizzle_irq = alpha_mv.pci_swizzle; + bridge->map_irq = alpha_mv.pci_map_irq; + + ret = pci_scan_root_bus_bridge(bridge); + if (ret) { + pci_free_host_bridge(bridge); + continue; + } + + bus = hose->bus = bridge->bus; hose->need_domain_info = need_domain_info; next_busno = bus->busn_res.end + 1; /* Don't allow 8-bit bus number overflow inside the hose - @@ -354,16 +379,19 @@ common_init_pci(void) pcibios_claim_console_setup(); pci_assign_unassigned_resources(); - pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq); + for (hose = hose_head; hose; hose = hose->next) { + bus = hose->bus; + if (bus) + pci_bus_add_devices(bus); + } } - struct pci_controller * __init alloc_pci_controller(void) { struct pci_controller *hose; - hose = alloc_bootmem(sizeof(*hose)); + hose = memblock_alloc_or_panic(sizeof(*hose), SMP_CACHE_BYTES); *hose_tail = hose; hose_tail = &hose->next; @@ -374,19 +402,15 @@ alloc_pci_controller(void) struct resource * __init alloc_resource(void) { - struct resource *res; - - res = alloc_bootmem(sizeof(*res)); - - return res; + return memblock_alloc_or_panic(sizeof(struct resource), SMP_CACHE_BYTES); } /* Provide information on locations of various I/O regions in physical memory. Do this on a per-card basis so that we choose the right hose. */ -asmlinkage long -sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn) +SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus, + unsigned long, dfn) { struct pci_controller *hose; struct pci_dev *dev; @@ -401,7 +425,7 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn) if (bus == 0 && dfn == 0) { hose = pci_isa_hose; } else { - dev = pci_get_bus_and_slot(bus, dfn); + dev = pci_get_domain_bus_and_slot(0, bus, dfn); if (!dev) return -ENODEV; hose = dev->sysdata; diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h index 2b0ac429f5eb..a16325ce21c4 100644 --- a/arch/alpha/kernel/pci_impl.h +++ b/arch/alpha/kernel/pci_impl.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/arch/alpha/kernel/pci_impl.h * @@ -142,8 +143,7 @@ struct pci_iommu_arena unsigned int align_entry; }; -#if defined(CONFIG_ALPHA_SRM) && \ - (defined(CONFIG_ALPHA_CIA) || defined(CONFIG_ALPHA_LCA)) +#if defined(CONFIG_ALPHA_SRM) && defined(CONFIG_ALPHA_CIA) # define NEED_SRM_SAVE_RESTORE #else # undef NEED_SRM_SAVE_RESTORE @@ -156,16 +156,8 @@ struct pci_iommu_arena #endif #ifdef ALPHA_RESTORE_SRM_SETUP -/* Store PCI device configuration left by SRM here. */ -struct pdev_srm_saved_conf -{ - struct pdev_srm_saved_conf *next; - struct pci_dev *dev; -}; - extern void pci_restore_srm_config(void); #else -#define pdev_save_srm_config(dev) do {} while (0) #define pci_restore_srm_config() do {} while (0) #endif diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index a21d0ab3b19e..955b6ca61627 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/pci_iommu.c */ @@ -6,12 +7,13 @@ #include <linux/mm.h> #include <linux/pci.h> #include <linux/gfp.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/export.h> #include <linux/scatterlist.h> #include <linux/log2.h> -#include <linux/dma-mapping.h> +#include <linux/dma-map-ops.h> #include <linux/iommu-helper.h> +#include <linux/string_choices.h> #include <asm/io.h> #include <asm/hwrpb.h> @@ -70,31 +72,8 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base, if (align < mem_size) align = mem_size; - -#ifdef CONFIG_DISCONTIGMEM - - arena = alloc_bootmem_node(NODE_DATA(nid), sizeof(*arena)); - if (!NODE_DATA(nid) || !arena) { - printk("%s: couldn't allocate arena from node %d\n" - " falling back to system-wide allocation\n", - __func__, nid); - arena = alloc_bootmem(sizeof(*arena)); - } - - arena->ptes = __alloc_bootmem_node(NODE_DATA(nid), mem_size, align, 0); - if (!NODE_DATA(nid) || !arena->ptes) { - printk("%s: couldn't allocate arena ptes from node %d\n" - " falling back to system-wide allocation\n", - __func__, nid); - arena->ptes = __alloc_bootmem(mem_size, align, 0); - } - -#else /* CONFIG_DISCONTIGMEM */ - - arena = alloc_bootmem(sizeof(*arena)); - arena->ptes = __alloc_bootmem(mem_size, align, 0); - -#endif /* CONFIG_DISCONTIGMEM */ + arena = memblock_alloc_or_panic(sizeof(*arena), SMP_CACHE_BYTES); + arena->ptes = memblock_alloc_or_panic(mem_size, align); spin_lock_init(&arena->lock); arena->hose = hose; @@ -128,12 +107,7 @@ iommu_arena_find_pages(struct device *dev, struct pci_iommu_arena *arena, unsigned long boundary_size; base = arena->dma_base >> PAGE_SHIFT; - if (dev) { - boundary_size = dma_get_seg_boundary(dev) + 1; - boundary_size >>= PAGE_SHIFT; - } else { - boundary_size = 1UL << (32 - PAGE_SHIFT); - } + boundary_size = dma_get_seg_boundary_nr_pages(dev, PAGE_SHIFT); /* Search forward for the first mask-aligned sequence of N free ptes */ ptes = arena->ptes; @@ -148,10 +122,12 @@ again: goto again; } - if (ptes[p+i]) - p = ALIGN(p + i + 1, mask + 1), i = 0; - else + if (ptes[p+i]) { + p = ALIGN(p + i + 1, mask + 1); + i = 0; + } else { i = i + 1; + } } if (i < n) { @@ -236,8 +212,8 @@ static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask) ok = 0; /* If both conditions above are met, we are fine. */ - DBGA("pci_dac_dma_supported %s from %pf\n", - ok ? "yes" : "no", __builtin_return_address(0)); + DBGA("pci_dac_dma_supported %s from %ps\n", + str_yes_no(ok), __builtin_return_address(0)); return ok; } @@ -248,28 +224,26 @@ static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask) until either pci_unmap_single or pci_dma_sync_single is performed. */ static dma_addr_t -pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, +pci_map_single_1(struct pci_dev *pdev, phys_addr_t paddr, size_t size, int dac_allowed) { struct pci_controller *hose = pdev ? pdev->sysdata : pci_isa_hose; dma_addr_t max_dma = pdev ? pdev->dma_mask : ISA_DMA_MASK; + unsigned long offset = offset_in_page(paddr); struct pci_iommu_arena *arena; long npages, dma_ofs, i; - unsigned long paddr; dma_addr_t ret; unsigned int align = 0; struct device *dev = pdev ? &pdev->dev : NULL; - paddr = __pa(cpu_addr); - #if !DEBUG_NODIRECT /* First check to see if we can use the direct map window. */ if (paddr + size + __direct_map_base - 1 <= max_dma && paddr + size <= __direct_map_size) { ret = paddr + __direct_map_base; - DBGA2("pci_map_single: [%p,%zx] -> direct %llx from %pf\n", - cpu_addr, size, ret, __builtin_return_address(0)); + DBGA2("pci_map_single: [%pa,%zx] -> direct %llx from %ps\n", + &paddr, size, ret, __builtin_return_address(0)); return ret; } @@ -279,8 +253,8 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, if (dac_allowed) { ret = paddr + alpha_mv.pci_dac_offset; - DBGA2("pci_map_single: [%p,%zx] -> DAC %llx from %pf\n", - cpu_addr, size, ret, __builtin_return_address(0)); + DBGA2("pci_map_single: [%pa,%zx] -> DAC %llx from %ps\n", + &paddr, size, ret, __builtin_return_address(0)); return ret; } @@ -290,7 +264,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, use direct_map above, it now must be considered an error. */ if (! alpha_mv.mv_pci_tbi) { printk_once(KERN_WARNING "pci_map_single: no HW sg\n"); - return 0; + return DMA_MAPPING_ERROR; } arena = hose->sg_pci; @@ -306,7 +280,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, if (dma_ofs < 0) { printk(KERN_WARNING "pci_map_single failed: " "could not allocate dma page tables\n"); - return 0; + return DMA_MAPPING_ERROR; } paddr &= PAGE_MASK; @@ -314,10 +288,10 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, arena->ptes[i + dma_ofs] = mk_iommu_pte(paddr); ret = arena->dma_base + dma_ofs * PAGE_SIZE; - ret += (unsigned long)cpu_addr & ~PAGE_MASK; + ret += offset; - DBGA2("pci_map_single: [%p,%zx] np %ld -> sg %llx from %pf\n", - cpu_addr, size, npages, ret, __builtin_return_address(0)); + DBGA2("pci_map_single: [%pa,%zx] np %ld -> sg %llx from %ps\n", + &paddr, size, npages, ret, __builtin_return_address(0)); return ret; } @@ -325,7 +299,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, /* Helper for generic DMA-mapping functions. */ static struct pci_dev *alpha_gendev_to_pci(struct device *dev) { - if (dev && dev->bus == &pci_bus_type) + if (dev && dev_is_pci(dev)) return to_pci_dev(dev); /* Assume that non-PCI devices asking for DMA are either ISA or EISA, @@ -346,19 +320,18 @@ static struct pci_dev *alpha_gendev_to_pci(struct device *dev) return NULL; } -static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir, - struct dma_attrs *attrs) +static dma_addr_t alpha_pci_map_phys(struct device *dev, phys_addr_t phys, + size_t size, enum dma_data_direction dir, + unsigned long attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); int dac_allowed; - BUG_ON(dir == PCI_DMA_NONE); + if (unlikely(attrs & DMA_ATTR_MMIO)) + return DMA_MAPPING_ERROR; - dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; - return pci_map_single_1(pdev, (char *)page_address(page) + offset, - size, dac_allowed); + dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; + return pci_map_single_1(pdev, phys, size, dac_allowed); } /* Unmap a single streaming mode DMA translation. The DMA_ADDR and @@ -367,9 +340,9 @@ static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page, the cpu to the buffer are guaranteed to see whatever the device wrote there. */ -static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, +static void alpha_pci_unmap_phys(struct device *dev, dma_addr_t dma_addr, size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) { unsigned long flags; struct pci_dev *pdev = alpha_gendev_to_pci(dev); @@ -377,20 +350,18 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, struct pci_iommu_arena *arena; long dma_ofs, npages; - BUG_ON(dir == PCI_DMA_NONE); - if (dma_addr >= __direct_map_base && dma_addr < __direct_map_base + __direct_map_size) { /* Nothing to do. */ - DBGA2("pci_unmap_single: direct [%llx,%zx] from %pf\n", + DBGA2("pci_unmap_single: direct [%llx,%zx] from %ps\n", dma_addr, size, __builtin_return_address(0)); return; } if (dma_addr > 0xffffffff) { - DBGA2("pci64_unmap_single: DAC [%llx,%zx] from %pf\n", + DBGA2("pci64_unmap_single: DAC [%llx,%zx] from %ps\n", dma_addr, size, __builtin_return_address(0)); return; } @@ -422,7 +393,7 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, spin_unlock_irqrestore(&arena->lock, flags); - DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %pf\n", + DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %ps\n", dma_addr, size, npages, __builtin_return_address(0)); } @@ -433,7 +404,7 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, static void *alpha_pci_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addrp, gfp_t gfp, - struct dma_attrs *attrs) + unsigned long attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); void *cpu_addr; @@ -442,10 +413,10 @@ static void *alpha_pci_alloc_coherent(struct device *dev, size_t size, gfp &= ~GFP_DMA; try_again: - cpu_addr = (void *)__get_free_pages(gfp, order); + cpu_addr = (void *)__get_free_pages(gfp | __GFP_ZERO, order); if (! cpu_addr) { printk(KERN_INFO "pci_alloc_consistent: " - "get_free_pages failed from %pf\n", + "get_free_pages failed from %ps\n", __builtin_return_address(0)); /* ??? Really atomic allocation? Otherwise we could play with vmalloc and sg if we can't find contiguous memory. */ @@ -453,8 +424,8 @@ try_again: } memset(cpu_addr, 0, size); - *dma_addrp = pci_map_single_1(pdev, cpu_addr, size, 0); - if (*dma_addrp == 0) { + *dma_addrp = pci_map_single_1(pdev, virt_to_phys(cpu_addr), size, 0); + if (*dma_addrp == DMA_MAPPING_ERROR) { free_pages((unsigned long)cpu_addr, order); if (alpha_mv.mv_pci_tbi || (gfp & GFP_DMA)) return NULL; @@ -464,7 +435,7 @@ try_again: goto try_again; } - DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %pf\n", + DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %ps\n", size, cpu_addr, *dma_addrp, __builtin_return_address(0)); return cpu_addr; @@ -478,13 +449,13 @@ try_again: static void alpha_pci_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr, - struct dma_attrs *attrs) + unsigned long attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); - pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); + dma_unmap_single(&pdev->dev, dma_addr, size, DMA_BIDIRECTIONAL); free_pages((unsigned long)cpu_addr, get_order(size)); - DBGA2("pci_free_consistent: [%llx,%zx] from %pf\n", + DBGA2("pci_free_consistent: [%llx,%zx] from %ps\n", dma_addr, size, __builtin_return_address(0)); } @@ -625,7 +596,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, while (sg+1 < end && (int) sg[1].dma_address == -1) { size += sg[1].length; - sg++; + sg = sg_next(sg); } npages = iommu_num_pages(paddr, size, PAGE_SIZE); @@ -651,7 +622,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); struct scatterlist *start, *end, *out; @@ -660,17 +631,18 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, dma_addr_t max_dma; int dac_allowed; - BUG_ON(dir == PCI_DMA_NONE); + BUG_ON(dir == DMA_NONE); dac_allowed = dev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; /* Fast path single entry scatterlists. */ if (nents == 1) { sg->dma_length = sg->length; - sg->dma_address - = pci_map_single_1(pdev, SG_ENT_VIRT_ADDRESS(sg), - sg->length, dac_allowed); - return sg->dma_address != 0; + sg->dma_address = pci_map_single_1(pdev, sg_phys(sg), + sg->length, dac_allowed); + if (sg->dma_address == DMA_MAPPING_ERROR) + return -EIO; + return 1; } start = sg; @@ -706,8 +678,10 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, if (out < end) out->dma_length = 0; - if (out - start == 0) + if (out - start == 0) { printk(KERN_WARNING "pci_map_sg failed: no entries?\n"); + return -ENOMEM; + } DBGA("pci_map_sg: %ld entries\n", out - start); return out - start; @@ -719,8 +693,8 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, /* Some allocation failed while mapping the scatterlist entries. Unmap them now. */ if (out > start) - pci_unmap_sg(pdev, start, out - start, dir); - return 0; + dma_unmap_sg(&pdev->dev, start, out - start, dir); + return -ENOMEM; } /* Unmap a set of streaming mode DMA translations. Again, cpu read @@ -729,7 +703,7 @@ static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction dir, - struct dma_attrs *attrs) + unsigned long attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); unsigned long flags; @@ -739,7 +713,7 @@ static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg, dma_addr_t max_dma; dma_addr_t fbeg, fend; - BUG_ON(dir == PCI_DMA_NONE); + BUG_ON(dir == DMA_NONE); if (! alpha_mv.mv_pci_tbi) return; @@ -934,32 +908,17 @@ iommu_unbind(struct pci_iommu_arena *arena, long pg_start, long pg_count) return 0; } -static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return dma_addr == 0; -} - -static int alpha_pci_set_mask(struct device *dev, u64 mask) -{ - if (!dev->dma_mask || - !pci_dma_supported(alpha_gendev_to_pci(dev), mask)) - return -EIO; - - *dev->dma_mask = mask; - return 0; -} - -struct dma_map_ops alpha_pci_ops = { +const struct dma_map_ops alpha_pci_ops = { .alloc = alpha_pci_alloc_coherent, .free = alpha_pci_free_coherent, - .map_page = alpha_pci_map_page, - .unmap_page = alpha_pci_unmap_page, + .map_phys = alpha_pci_map_phys, + .unmap_phys = alpha_pci_unmap_phys, .map_sg = alpha_pci_map_sg, .unmap_sg = alpha_pci_unmap_sg, - .mapping_error = alpha_pci_mapping_error, .dma_supported = alpha_pci_supported, - .set_dma_mask = alpha_pci_set_mask, + .mmap = dma_common_mmap, + .get_sgtable = dma_common_get_sgtable, + .alloc_pages_op = dma_common_alloc_pages, + .free_pages = dma_common_free_pages, }; - -struct dma_map_ops *dma_ops = &alpha_pci_ops; -EXPORT_SYMBOL(dma_ops); +EXPORT_SYMBOL(alpha_pci_ops); diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c index d821b17047e0..a3eaab094ece 100644 --- a/arch/alpha/kernel/perf_event.c +++ b/arch/alpha/kernel/perf_event.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Hardware performance events for the Alpha. * @@ -83,6 +84,8 @@ struct alpha_pmu_t { long pmc_left[3]; /* Subroutine for allocation of PMCs. Enforces constraints. */ int (*check_constraints)(struct perf_event **, unsigned long *, int); + /* Subroutine for checking validity of a raw event for this PMU. */ + int (*raw_event_valid)(u64 config); }; /* @@ -203,6 +206,12 @@ success: } +static int ev67_raw_event_valid(u64 config) +{ + return config >= EV67_CYCLES && config < EV67_LAST_ET; +}; + + static const struct alpha_pmu_t ev67_pmu = { .event_map = ev67_perfmon_event_map, .max_events = ARRAY_SIZE(ev67_perfmon_event_map), @@ -211,7 +220,8 @@ static const struct alpha_pmu_t ev67_pmu = { .pmc_count_mask = {EV67_PCTR_0_COUNT_MASK, EV67_PCTR_1_COUNT_MASK, 0}, .pmc_max_period = {(1UL<<20) - 1, (1UL<<20) - 1, 0}, .pmc_left = {16, 4, 0}, - .check_constraints = ev67_check_constraints + .check_constraints = ev67_check_constraints, + .raw_event_valid = ev67_raw_event_valid, }; @@ -341,7 +351,7 @@ static int collect_events(struct perf_event *group, int max_count, evtype[n] = group->hw.event_base; current_idx[n++] = PMC_NO_INDEX; } - list_for_each_entry(pe, &group->sibling_list, group_entry) { + for_each_sibling_event(pe, group) { if (!is_software_event(pe) && pe->state != PERF_EVENT_STATE_OFF) { if (n >= max_count) return -1; @@ -422,7 +432,7 @@ static void maybe_change_configuration(struct cpu_hw_events *cpuc) */ static int alpha_pmu_add(struct perf_event *event, int flags) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; int n0; int ret; @@ -474,7 +484,7 @@ static int alpha_pmu_add(struct perf_event *event, int flags) */ static void alpha_pmu_del(struct perf_event *event, int flags) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; unsigned long irq_flags; int j; @@ -522,7 +532,7 @@ static void alpha_pmu_read(struct perf_event *event) static void alpha_pmu_stop(struct perf_event *event, int flags) { struct hw_perf_event *hwc = &event->hw; - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); if (!(hwc->state & PERF_HES_STOPPED)) { cpuc->idx_mask &= ~(1UL<<hwc->idx); @@ -542,7 +552,7 @@ static void alpha_pmu_stop(struct perf_event *event, int flags) static void alpha_pmu_start(struct perf_event *event, int flags) { struct hw_perf_event *hwc = &event->hw; - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED))) return; @@ -564,7 +574,7 @@ static void alpha_pmu_start(struct perf_event *event, int flags) * Check that CPU performance counters are supported. * - currently support EV67 and later CPUs. * - actually some later revisions of the EV6 have the same PMC model as the - * EV67 but we don't do suffiently deep CPU detection to detect them. + * EV67 but we don't do sufficiently deep CPU detection to detect them. * Bad luck to the very few people who might have one, I guess. */ static int supported_cpu(void) @@ -609,7 +619,9 @@ static int __hw_perf_event_init(struct perf_event *event) } else if (attr->type == PERF_TYPE_HW_CACHE) { return -EOPNOTSUPP; } else if (attr->type == PERF_TYPE_RAW) { - ev = attr->config & 0xff; + if (!alpha_pmu->raw_event_valid(attr->config)) + return -EINVAL; + ev = attr->config; } else { return -EOPNOTSUPP; } @@ -618,12 +630,6 @@ static int __hw_perf_event_init(struct perf_event *event) return ev; } - /* The EV67 does not support mode exclusion */ - if (attr->exclude_kernel || attr->exclude_user - || attr->exclude_hv || attr->exclude_idle) { - return -EPERM; - } - /* * We place the event type in event_base here and leave calculation * of the codes to programme the PMU for alpha_pmu_enable() because @@ -683,8 +689,6 @@ static int __hw_perf_event_init(struct perf_event *event) */ static int alpha_pmu_event_init(struct perf_event *event) { - int err; - /* does not support taken branch sampling */ if (has_branch_stack(event)) return -EOPNOTSUPP; @@ -703,9 +707,7 @@ static int alpha_pmu_event_init(struct perf_event *event) return -ENODEV; /* Do the real initialisation work. */ - err = __hw_perf_event_init(event); - - return err; + return __hw_perf_event_init(event); } /* @@ -713,7 +715,7 @@ static int alpha_pmu_event_init(struct perf_event *event) */ static void alpha_pmu_enable(struct pmu *pmu) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); if (cpuc->enabled) return; @@ -739,7 +741,7 @@ static void alpha_pmu_enable(struct pmu *pmu) static void alpha_pmu_disable(struct pmu *pmu) { - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); if (!cpuc->enabled) return; @@ -759,6 +761,7 @@ static struct pmu pmu = { .start = alpha_pmu_start, .stop = alpha_pmu_stop, .read = alpha_pmu_read, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; @@ -803,8 +806,8 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr, struct hw_perf_event *hwc; int idx, j; - __get_cpu_var(irq_pmi_count)++; - cpuc = &__get_cpu_var(cpu_hw_events); + __this_cpu_inc(irq_pmi_count); + cpuc = this_cpu_ptr(&cpu_hw_events); /* Completely counting through the PMC's period to trigger a new PMC * overflow interrupt while in this interrupt routine is utterly @@ -817,7 +820,7 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr, if (unlikely(la_ptr >= alpha_pmu->num_pmcs)) { /* This should never occur! */ irq_err_count++; - pr_warning("PMI: silly index %ld\n", la_ptr); + pr_warn("PMI: silly index %ld\n", la_ptr); wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); return; } @@ -840,7 +843,7 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr, if (unlikely(!event)) { /* This should never occur! */ irq_err_count++; - pr_warning("PMI: No event at index %d!\n", idx); + pr_warn("PMI: No event at index %d!\n", idx); wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); return; } @@ -849,14 +852,9 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr, alpha_perf_event_update(event, hwc, idx, alpha_pmu->pmc_max_period[idx]+1); perf_sample_data_init(&data, 0, hwc->last_period); - if (alpha_perf_event_set_period(event, hwc, idx)) { - if (perf_event_overflow(event, &data, regs)) { - /* Interrupts coming too quickly; "throttle" the - * counter, i.e., disable it for a little while. - */ - alpha_pmu_stop(event, 0); - } - } + if (alpha_perf_event_set_period(event, hwc, idx)) + perf_event_overflow(event, &data, regs); + wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); return; @@ -867,7 +865,7 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr, /* * Init call to initialise performance events at kernel startup. */ -int __init init_hw_perf_events(void) +static int __init init_hw_perf_events(void) { pr_info("Performance events: "); diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index f2360a74e5d5..06522451f018 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/process.c * @@ -8,9 +9,13 @@ * This file handles the architecture-dependent parts of process handling. */ +#include <linux/cpu.h> #include <linux/errno.h> #include <linux/module.h> #include <linux/sched.h> +#include <linux/sched/debug.h> +#include <linux/sched/task.h> +#include <linux/sched/task_stack.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/smp.h> @@ -31,9 +36,8 @@ #include <linux/rcupdate.h> #include <asm/reg.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/hwrpb.h> #include <asm/fpu.h> @@ -46,6 +50,23 @@ void (*pm_power_off)(void) = machine_power_off; EXPORT_SYMBOL(pm_power_off); +#ifdef CONFIG_ALPHA_WTINT +/* + * Sleep the CPU. + * EV6, LCA45 and QEMU know how to power down, skipping N timer interrupts. + */ +void arch_cpu_idle(void) +{ + wtint(0); +} + +void __noreturn arch_cpu_idle_dead(void) +{ + wtint(INT_MAX); + BUG(); +} +#endif /* ALPHA_WTINT */ + struct halt_info { int mode; char *restart_cmd; @@ -54,7 +75,7 @@ struct halt_info { static void common_shutdown_1(void *generic_ptr) { - struct halt_info *how = (struct halt_info *)generic_ptr; + struct halt_info *how = generic_ptr; struct percpu_struct *cpup; unsigned long *pflags, flags; int cpuid = smp_processor_id(); @@ -105,7 +126,7 @@ common_shutdown_1(void *generic_ptr) /* Wait for the secondaries to halt. */ set_cpu_present(boot_cpuid, false); set_cpu_possible(boot_cpuid, false); - while (cpumask_weight(cpu_present_mask)) + while (!cpumask_empty(cpu_present_mask)) barrier(); #endif @@ -114,7 +135,7 @@ common_shutdown_1(void *generic_ptr) #ifdef CONFIG_DUMMY_CONSOLE /* If we've gotten here after SysRq-b, leave interrupt context before taking over the console. */ - if (in_interrupt()) + if (in_hardirq()) irq_exit(); /* This has the effect of resetting the VGA video origin. */ console_lock(); @@ -193,14 +214,6 @@ start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) } EXPORT_SYMBOL(start_thread); -/* - * Free current thread data structures etc.. - */ -void -exit_thread(void) -{ -} - void flush_thread(void) { @@ -213,20 +226,14 @@ flush_thread(void) current_thread_info()->pcb.unique = 0; } -void -release_thread(struct task_struct *dead_task) -{ -} - /* - * Copy an alpha thread.. + * Copy architecture-specific thread state */ - -int -copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long arg, - struct task_struct *p) +int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) { + u64 clone_flags = args->flags; + unsigned long usp = args->stack; + unsigned long tls = args->tls; extern void ret_from_fork(void); extern void ret_from_kernel_thread(void); @@ -238,15 +245,17 @@ copy_thread(unsigned long clone_flags, unsigned long usp, childstack = ((struct switch_stack *) childregs) - 1; childti->pcb.ksp = (unsigned long) childstack; childti->pcb.flags = 1; /* set FEN, clear everything else */ + childti->status |= TS_SAVED_FP | TS_RESTORE_FP; - if (unlikely(p->flags & PF_KTHREAD)) { + if (unlikely(args->fn)) { /* kernel thread */ memset(childstack, 0, sizeof(struct switch_stack) + sizeof(struct pt_regs)); childstack->r26 = (unsigned long) ret_from_kernel_thread; - childstack->r9 = usp; /* function */ - childstack->r10 = arg; - childregs->hae = alpha_mv.hae_cache, + childstack->r9 = (unsigned long) args->fn; + childstack->r10 = (unsigned long) args->fn_arg; + childregs->hae = alpha_mv.hae_cache; + memset(childti->fp, '\0', sizeof(childti->fp)); childti->pcb.usp = 0; return 0; } @@ -256,13 +265,14 @@ copy_thread(unsigned long clone_flags, unsigned long usp, required for proper operation in the case of a threaded application calling fork. */ if (clone_flags & CLONE_SETTLS) - childti->pcb.unique = regs->r20; + childti->pcb.unique = tls; + else + regs->r20 = 0; /* OSF/1 has some strange fork() semantics. */ childti->pcb.usp = usp ?: rdusp(); *childregs = *regs; childregs->r0 = 0; childregs->r19 = 0; childregs->r20 = 1; /* OSF/1 has some strange fork() semantics. */ - regs->r20 = 0; stack = ((struct switch_stack *) regs) - 1; *childstack = *stack; childstack->r26 = (unsigned long) ret_from_fork; @@ -326,14 +336,11 @@ dump_elf_task(elf_greg_t *dest, struct task_struct *task) } EXPORT_SYMBOL(dump_elf_task); -int -dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task) +int elf_core_copy_task_fpregs(struct task_struct *t, elf_fpregset_t *fpu) { - struct switch_stack *sw = (struct switch_stack *)task_pt_regs(task) - 1; - memcpy(dest, sw->fp, 32 * 8); + memcpy(fpu, task_thread_info(t)->fp, 32 * 8); return 1; } -EXPORT_SYMBOL(dump_elf_task_fp); /* * Return saved PC of a blocked thread. This assumes the frame @@ -349,7 +356,7 @@ EXPORT_SYMBOL(dump_elf_task_fp); * all. -- r~ */ -unsigned long +static unsigned long thread_saved_pc(struct task_struct *t) { unsigned long base = (unsigned long)task_stack_page(t); @@ -365,12 +372,11 @@ thread_saved_pc(struct task_struct *t) } unsigned long -get_wchan(struct task_struct *p) +__get_wchan(struct task_struct *p) { unsigned long schedule_frame; unsigned long pc; - if (!p || p == current || p->state == TASK_RUNNING) - return 0; + /* * This one depends on the frame size of schedule(). Do a * "disass schedule" in gdb to find the frame size. Also, the diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h index d3e52d3fd592..a8bc3ead776b 100644 --- a/arch/alpha/kernel/proto.h +++ b/arch/alpha/kernel/proto.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/interrupt.h> +#include <linux/screen_info.h> #include <linux/io.h> -#include <asm/pgtable.h> - /* Prototypes of functions used across modules here in this directory. */ #define vucp volatile unsigned char * @@ -15,13 +15,7 @@ struct pt_regs; struct task_struct; struct pci_dev; struct pci_controller; - -/* core_apecs.c */ -extern struct pci_ops apecs_pci_ops; -extern void apecs_init_arch(void); -extern void apecs_pci_clr_err(void); -extern void apecs_machine_check(unsigned long vector, unsigned long la_ptr); -extern void apecs_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); +struct pci_bus; /* core_cia.c */ extern struct pci_ops cia_pci_ops; @@ -38,22 +32,12 @@ extern int irongate_pci_clr_err(void); extern void irongate_init_arch(void); #define irongate_pci_tbi ((void *)0) -/* core_lca.c */ -extern struct pci_ops lca_pci_ops; -extern void lca_init_arch(void); -extern void lca_machine_check(unsigned long vector, unsigned long la_ptr); -extern void lca_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); - /* core_marvel.c */ extern struct pci_ops marvel_pci_ops; extern void marvel_init_arch(void); extern void marvel_kill_arch(int); extern void marvel_machine_check(unsigned long, unsigned long); extern void marvel_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); -extern int marvel_pa_to_nid(unsigned long); -extern int marvel_cpuid_to_nid(int); -extern unsigned long marvel_node_mem_start(int); -extern unsigned long marvel_node_mem_size(int); extern struct _alpha_agp_info *marvel_agp_info(void); struct io7 *marvel_find_io7(int pe); struct io7 *marvel_next_io7(struct io7 *prev); @@ -102,10 +86,6 @@ extern void wildfire_init_arch(void); extern void wildfire_kill_arch(int); extern void wildfire_machine_check(unsigned long vector, unsigned long la_ptr); extern void wildfire_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); -extern int wildfire_pa_to_nid(unsigned long); -extern int wildfire_cpuid_to_nid(int); -extern unsigned long wildfire_node_mem_start(int); -extern unsigned long wildfire_node_mem_size(int); /* console.c */ #ifdef CONFIG_VGA_HOSE @@ -122,6 +102,10 @@ extern int boot_cpuid; #ifdef CONFIG_VERBOSE_MCHECK extern unsigned long alpha_verbose_mcheck; #endif +#ifdef CONFIG_BLK_DEV_INITRD +extern void * __init move_initrd(unsigned long); +#endif +extern struct screen_info vgacon_screen_info; /* srmcons.c */ #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM) @@ -135,26 +119,25 @@ extern void unregister_srm_console(void); /* smp.c */ extern void setup_smp(void); extern void handle_ipi(struct pt_regs *); -extern void smp_percpu_timer_interrupt(struct pt_regs *); +extern void __init smp_callin(void); /* bios32.c */ /* extern void reset_for_srm(void); */ /* time.c */ -extern irqreturn_t timer_interrupt(int irq, void *dev); +extern irqreturn_t rtc_timer_interrupt(int irq, void *dev); +extern void init_clockevent(void); extern void common_init_rtc(void); extern unsigned long est_cycle_freq; -extern unsigned int common_get_rtc_time(struct rtc_time *time); -extern int common_set_rtc_time(struct rtc_time *time); /* smc37c93x.c */ -extern void SMC93x_Init(void); +extern int __init SMC93x_Init(void); /* smc37c669.c */ -extern void SMC669_Init(int); +extern void __init SMC669_Init(int); /* es1888.c */ -extern void es1888_init(void); +extern void __init es1888_init(void); /* ../lib/fpreg.c */ extern void alpha_write_fp_reg (unsigned long reg, unsigned long val); @@ -175,19 +158,37 @@ extern void entSys(void); extern void entUna(void); extern void entDbg(void); +/* pci.c */ +extern void pcibios_claim_one_bus(struct pci_bus *); + /* ptrace.c */ extern int ptrace_set_bpt (struct task_struct *child); extern int ptrace_cancel_bpt (struct task_struct *child); +extern void syscall_trace_leave(void); +extern unsigned long syscall_trace_enter(void); + +/* signal.c */ +struct sigcontext; +extern void do_sigreturn(struct sigcontext __user *); +struct rt_sigframe; +extern void do_rt_sigreturn(struct rt_sigframe __user *); +extern void do_work_pending(struct pt_regs *, unsigned long, unsigned long, unsigned long); /* traps.c */ extern void dik_show_regs(struct pt_regs *regs, unsigned long *r9_15); extern void die_if_kernel(char *, struct pt_regs *, long, unsigned long *); +extern void do_entInt(unsigned long, unsigned long, unsigned long, struct pt_regs *); +extern void do_entArith(unsigned long, unsigned long, struct pt_regs *); +extern void do_entIF(unsigned long, struct pt_regs *); +extern void do_entDbg(struct pt_regs *); +struct allregs; +extern void do_entUna(void *, unsigned long, unsigned long, struct allregs *); +extern void do_entUnaUser(void __user *, unsigned long, unsigned long, struct pt_regs *); /* sys_titan.c */ extern void titan_dispatch_irqs(u64); /* ../mm/init.c */ -extern void switch_to_system_map(void); extern void srm_paging_stop(void); static inline int diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index 2a4a80ff4a20..fde4c68e7a0b 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* ptrace.c */ /* By Ross Biro 1/23/92 */ /* edited by Linus Torvalds */ @@ -6,6 +7,7 @@ #include <linux/kernel.h> #include <linux/sched.h> +#include <linux/sched/task_stack.h> #include <linux/mm.h> #include <linux/smp.h> #include <linux/errno.h> @@ -13,10 +15,9 @@ #include <linux/user.h> #include <linux/security.h> #include <linux/signal.h> -#include <linux/tracehook.h> +#include <linux/audit.h> -#include <asm/uaccess.h> -#include <asm/pgtable.h> +#include <linux/uaccess.h> #include <asm/fpu.h> #include "proto.h" @@ -77,6 +78,8 @@ enum { (PAGE_SIZE*2 - sizeof(struct pt_regs) - sizeof(struct switch_stack) \ + offsetof(struct switch_stack, reg)) +#define FP_REG(reg) (offsetof(struct thread_info, reg)) + static int regoff[] = { PT_REG( r0), PT_REG( r1), PT_REG( r2), PT_REG( r3), PT_REG( r4), PT_REG( r5), PT_REG( r6), PT_REG( r7), @@ -86,14 +89,14 @@ static int regoff[] = { PT_REG( r20), PT_REG( r21), PT_REG( r22), PT_REG( r23), PT_REG( r24), PT_REG( r25), PT_REG( r26), PT_REG( r27), PT_REG( r28), PT_REG( gp), -1, -1, - SW_REG(fp[ 0]), SW_REG(fp[ 1]), SW_REG(fp[ 2]), SW_REG(fp[ 3]), - SW_REG(fp[ 4]), SW_REG(fp[ 5]), SW_REG(fp[ 6]), SW_REG(fp[ 7]), - SW_REG(fp[ 8]), SW_REG(fp[ 9]), SW_REG(fp[10]), SW_REG(fp[11]), - SW_REG(fp[12]), SW_REG(fp[13]), SW_REG(fp[14]), SW_REG(fp[15]), - SW_REG(fp[16]), SW_REG(fp[17]), SW_REG(fp[18]), SW_REG(fp[19]), - SW_REG(fp[20]), SW_REG(fp[21]), SW_REG(fp[22]), SW_REG(fp[23]), - SW_REG(fp[24]), SW_REG(fp[25]), SW_REG(fp[26]), SW_REG(fp[27]), - SW_REG(fp[28]), SW_REG(fp[29]), SW_REG(fp[30]), SW_REG(fp[31]), + FP_REG(fp[ 0]), FP_REG(fp[ 1]), FP_REG(fp[ 2]), FP_REG(fp[ 3]), + FP_REG(fp[ 4]), FP_REG(fp[ 5]), FP_REG(fp[ 6]), FP_REG(fp[ 7]), + FP_REG(fp[ 8]), FP_REG(fp[ 9]), FP_REG(fp[10]), FP_REG(fp[11]), + FP_REG(fp[12]), FP_REG(fp[13]), FP_REG(fp[14]), FP_REG(fp[15]), + FP_REG(fp[16]), FP_REG(fp[17]), FP_REG(fp[18]), FP_REG(fp[19]), + FP_REG(fp[20]), FP_REG(fp[21]), FP_REG(fp[22]), FP_REG(fp[23]), + FP_REG(fp[24]), FP_REG(fp[25]), FP_REG(fp[26]), FP_REG(fp[27]), + FP_REG(fp[28]), FP_REG(fp[29]), FP_REG(fp[30]), FP_REG(fp[31]), PT_REG( pc) }; @@ -156,14 +159,16 @@ put_reg(struct task_struct *task, unsigned long regno, unsigned long data) static inline int read_int(struct task_struct *task, unsigned long addr, int * data) { - int copied = access_process_vm(task, addr, data, sizeof(int), 0); + int copied = access_process_vm(task, addr, data, sizeof(int), + FOLL_FORCE); return (copied == sizeof(int)) ? 0 : -EIO; } static inline int write_int(struct task_struct *task, unsigned long addr, int data) { - int copied = access_process_vm(task, addr, &data, sizeof(int), 1); + int copied = access_process_vm(task, addr, &data, sizeof(int), + FOLL_FORCE | FOLL_WRITE); return (copied == sizeof(int)) ? 0 : -EIO; } @@ -280,7 +285,8 @@ long arch_ptrace(struct task_struct *child, long request, /* When I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ case PTRACE_PEEKDATA: - copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); + copied = ptrace_access_vm(child, addr, &tmp, sizeof(tmp), + FOLL_FORCE); ret = -EIO; if (copied != sizeof(tmp)) break; @@ -316,15 +322,18 @@ long arch_ptrace(struct task_struct *child, long request, asmlinkage unsigned long syscall_trace_enter(void) { unsigned long ret = 0; + struct pt_regs *regs = current_pt_regs(); if (test_thread_flag(TIF_SYSCALL_TRACE) && - tracehook_report_syscall_entry(current_pt_regs())) + ptrace_report_syscall_entry(current_pt_regs())) ret = -1UL; + audit_syscall_entry(regs->r0, regs->r16, regs->r17, regs->r18, regs->r19); return ret ?: current_pt_regs()->r0; } asmlinkage void syscall_trace_leave(void) { + audit_syscall_exit(current_pt_regs()); if (test_thread_flag(TIF_SYSCALL_TRACE)) - tracehook_report_syscall_exit(current_pt_regs(), 0); + ptrace_report_syscall_exit(current_pt_regs(), 0); } diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c new file mode 100644 index 000000000000..cfdf90bc8b3f --- /dev/null +++ b/arch/alpha/kernel/rtc.c @@ -0,0 +1,226 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/arch/alpha/kernel/rtc.c + * + * Copyright (C) 1991, 1992, 1995, 1999, 2000 Linus Torvalds + * + * This file contains date handling. + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mc146818rtc.h> +#include <linux/bcd.h> +#include <linux/rtc.h> +#include <linux/platform_device.h> + +#include "proto.h" + + +/* + * Support for the RTC device. + * + * We don't want to use the rtc-cmos driver, because we don't want to support + * alarms, as that would be indistinguishable from timer interrupts. + * + * Further, generic code is really, really tied to a 1900 epoch. This is + * true in __get_rtc_time as well as the users of struct rtc_time e.g. + * rtc_tm_to_time. Thankfully all of the other epochs in use are later + * than 1900, and so it's easy to adjust. + */ + +static unsigned long rtc_epoch; + +static int __init +specifiy_epoch(char *str) +{ + unsigned long epoch = simple_strtoul(str, NULL, 0); + if (epoch < 1900) + printk("Ignoring invalid user specified epoch %lu\n", epoch); + else + rtc_epoch = epoch; + return 1; +} +__setup("epoch=", specifiy_epoch); + +static void __init +init_rtc_epoch(void) +{ + int epoch, year, ctrl; + + if (rtc_epoch != 0) { + /* The epoch was specified on the command-line. */ + return; + } + + /* Detect the epoch in use on this computer. */ + ctrl = CMOS_READ(RTC_CONTROL); + year = CMOS_READ(RTC_YEAR); + if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + year = bcd2bin(year); + + /* PC-like is standard; used for year >= 70 */ + epoch = 1900; + if (year < 20) { + epoch = 2000; + } else if (year >= 20 && year < 48) { + /* NT epoch */ + epoch = 1980; + } else if (year >= 48 && year < 70) { + /* Digital UNIX epoch */ + epoch = 1952; + } + rtc_epoch = epoch; + + printk(KERN_INFO "Using epoch %d for rtc year %d\n", epoch, year); +} + +static int +alpha_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + int ret = mc146818_get_time(tm, 10); + + if (ret < 0) { + dev_err_ratelimited(dev, "unable to read current time\n"); + return ret; + } + + /* Adjust for non-default epochs. It's easier to depend on the + generic __get_rtc_time and adjust the epoch here than create + a copy of __get_rtc_time with the edits we need. */ + if (rtc_epoch != 1900) { + int year = tm->tm_year; + /* Undo the century adjustment made in __get_rtc_time. */ + if (year >= 100) + year -= 100; + year += rtc_epoch - 1900; + /* Redo the century adjustment with the epoch in place. */ + if (year <= 69) + year += 100; + tm->tm_year = year; + } + + return 0; +} + +static int +alpha_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct rtc_time xtm; + + if (rtc_epoch != 1900) { + xtm = *tm; + xtm.tm_year -= rtc_epoch - 1900; + tm = &xtm; + } + + return mc146818_set_time(tm); +} + +static int +alpha_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case RTC_EPOCH_READ: + return put_user(rtc_epoch, (unsigned long __user *)arg); + case RTC_EPOCH_SET: + if (arg < 1900) + return -EINVAL; + rtc_epoch = arg; + return 0; + default: + return -ENOIOCTLCMD; + } +} + +static const struct rtc_class_ops alpha_rtc_ops = { + .read_time = alpha_rtc_read_time, + .set_time = alpha_rtc_set_time, + .ioctl = alpha_rtc_ioctl, +}; + +/* + * Similarly, except do the actual CMOS access on the boot cpu only. + * This requires marshalling the data across an interprocessor call. + */ + +#if defined(CONFIG_SMP) && \ + (defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_MARVEL)) +# define HAVE_REMOTE_RTC 1 + +union remote_data { + struct rtc_time *tm; + long retval; +}; + +static void +do_remote_read(void *data) +{ + union remote_data *x = data; + x->retval = alpha_rtc_read_time(NULL, x->tm); +} + +static int +remote_read_time(struct device *dev, struct rtc_time *tm) +{ + union remote_data x; + if (smp_processor_id() != boot_cpuid) { + x.tm = tm; + smp_call_function_single(boot_cpuid, do_remote_read, &x, 1); + return x.retval; + } + return alpha_rtc_read_time(NULL, tm); +} + +static void +do_remote_set(void *data) +{ + union remote_data *x = data; + x->retval = alpha_rtc_set_time(NULL, x->tm); +} + +static int +remote_set_time(struct device *dev, struct rtc_time *tm) +{ + union remote_data x; + if (smp_processor_id() != boot_cpuid) { + x.tm = tm; + smp_call_function_single(boot_cpuid, do_remote_set, &x, 1); + return x.retval; + } + return alpha_rtc_set_time(NULL, tm); +} + +static const struct rtc_class_ops remote_rtc_ops = { + .read_time = remote_read_time, + .set_time = remote_set_time, + .ioctl = alpha_rtc_ioctl, +}; +#endif + +static int __init +alpha_rtc_init(void) +{ + struct platform_device *pdev; + struct rtc_device *rtc; + + init_rtc_epoch(); + + pdev = platform_device_register_simple("rtc-alpha", -1, NULL, 0); + rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); + + platform_set_drvdata(pdev, rtc); + rtc->ops = &alpha_rtc_ops; + +#ifdef HAVE_REMOTE_RTC + if (alpha_mv.rtc_boot_cpu_only) + rtc->ops = &remote_rtc_ops; +#endif + + return devm_rtc_register_device(rtc); +} +device_initcall(alpha_rtc_init); diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index 9e3107cc5ebb..bebdffafaee8 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/setup.c * @@ -27,8 +28,9 @@ #include <linux/init.h> #include <linux/string.h> #include <linux/ioport.h> +#include <linux/panic_notifier.h> #include <linux/platform_device.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/pci.h> #include <linux/seq_file.h> #include <linux/root_dev.h> @@ -45,7 +47,6 @@ #include <linux/log2.h> #include <linux/export.h> -extern struct atomic_notifier_head panic_notifier_list; static int alpha_panic_event(struct notifier_block *, unsigned long, void *); static struct notifier_block alpha_panic_block = { alpha_panic_event, @@ -53,8 +54,7 @@ static struct notifier_block alpha_panic_block = { INT_MAX /* try to do it first */ }; -#include <asm/uaccess.h> -#include <asm/pgtable.h> +#include <linux/uaccess.h> #include <asm/hwrpb.h> #include <asm/dma.h> #include <asm/mmu_context.h> @@ -79,11 +79,6 @@ int alpha_l3_cacheshape; unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON; #endif -#ifdef CONFIG_NUMA -struct cpumask node_to_cpumask_map[MAX_NUMNODES] __read_mostly; -EXPORT_SYMBOL(node_to_cpumask_map); -#endif - /* Which processor we booted from. */ int boot_cpuid; @@ -115,10 +110,18 @@ unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE; #ifdef CONFIG_ALPHA_GENERIC struct alpha_machine_vector alpha_mv; +EXPORT_SYMBOL(alpha_mv); +#endif + +#ifndef alpha_using_srm int alpha_using_srm; EXPORT_SYMBOL(alpha_using_srm); #endif +#ifndef alpha_using_qemu +int alpha_using_qemu; +#endif + static struct alpha_machine_vector *get_sysvec(unsigned long, unsigned long, unsigned long); static struct alpha_machine_vector *get_sysvec_byname(const char *); @@ -128,13 +131,14 @@ static void determine_cpu_caches (unsigned int); static char __initdata command_line[COMMAND_LINE_SIZE]; +#ifdef CONFIG_VGA_CONSOLE /* * The format of "screen_info" is strange, and due to early * i386-setup code. This is just enough to make the console * code think we're on a VGA color display. */ -struct screen_info screen_info = { +struct screen_info vgacon_screen_info = { .orig_x = 0, .orig_y = 25, .orig_video_cols = 80, @@ -142,8 +146,7 @@ struct screen_info screen_info = { .orig_video_isVGA = 1, .orig_video_points = 16 }; - -EXPORT_SYMBOL(screen_info); +#endif /* * The direct map I/O window, if any. This should be the same @@ -168,35 +171,22 @@ EXPORT_SYMBOL(__direct_map_size); asm(".weak "#X) WEAK(alcor_mv); -WEAK(alphabook1_mv); -WEAK(avanti_mv); -WEAK(cabriolet_mv); WEAK(clipper_mv); WEAK(dp264_mv); WEAK(eb164_mv); -WEAK(eb64p_mv); -WEAK(eb66_mv); -WEAK(eb66p_mv); WEAK(eiger_mv); -WEAK(jensen_mv); WEAK(lx164_mv); -WEAK(lynx_mv); WEAK(marvel_ev7_mv); WEAK(miata_mv); -WEAK(mikasa_mv); WEAK(mikasa_primo_mv); WEAK(monet_mv); WEAK(nautilus_mv); -WEAK(noname_mv); -WEAK(noritake_mv); WEAK(noritake_primo_mv); -WEAK(p2k_mv); WEAK(pc164_mv); WEAK(privateer_mv); WEAK(rawhide_mv); WEAK(ruffian_mv); WEAK(rx164_mv); -WEAK(sable_mv); WEAK(sable_gamma_mv); WEAK(shark_mv); WEAK(sx164_mv); @@ -204,7 +194,6 @@ WEAK(takara_mv); WEAK(titan_mv); WEAK(webbrick_mv); WEAK(wildfire_mv); -WEAK(xl_mv); WEAK(xlt_mv); #undef WEAK @@ -221,7 +210,7 @@ static void __init reserve_std_resources(void) { static struct resource standard_io_resources[] = { - { .name = "rtc", .start = -1, .end = -1 }, + { .name = "rtc", .start = 0x70, .end = 0x7f}, { .name = "dma1", .start = 0x00, .end = 0x1f }, { .name = "pic1", .start = 0x20, .end = 0x3f }, { .name = "timer", .start = 0x40, .end = 0x5f }, @@ -243,10 +232,6 @@ reserve_std_resources(void) } } - /* Fix up for the Jensen's queer RTC placement. */ - standard_io_resources[0].start = RTC_PORT(0); - standard_io_resources[0].end = RTC_PORT(0) + 0x10; - for (i = 0; i < ARRAY_SIZE(standard_io_resources); ++i) request_resource(io, standard_io_resources+i); } @@ -284,7 +269,7 @@ move_initrd(unsigned long mem_limit) unsigned long size; size = initrd_end - initrd_start; - start = __alloc_bootmem(PAGE_ALIGN(size), PAGE_SIZE, 0); + start = memblock_alloc(PAGE_ALIGN(size), PAGE_SIZE); if (!start || __pa(start) + size > mem_limit) { initrd_start = initrd_end = 0; return NULL; @@ -297,15 +282,12 @@ move_initrd(unsigned long mem_limit) } #endif -#ifndef CONFIG_DISCONTIGMEM static void __init setup_memory(void *kernel_end) { struct memclust_struct * cluster; struct memdesc_struct * memdesc; - unsigned long start_kernel_pfn, end_kernel_pfn; - unsigned long bootmap_size, bootmap_pages, bootmap_start; - unsigned long start, end; + unsigned long kernel_size; unsigned long i; /* Find free clusters, and init and free the bootmem accordingly. */ @@ -313,19 +295,25 @@ setup_memory(void *kernel_end) (hwrpb->mddt_offset + (unsigned long) hwrpb); for_each_mem_cluster(memdesc, cluster, i) { + unsigned long end; + printk("memcluster %lu, usage %01lx, start %8lu, end %8lu\n", i, cluster->usage, cluster->start_pfn, cluster->start_pfn + cluster->numpages); + end = cluster->start_pfn + cluster->numpages; + if (end > max_low_pfn) + max_low_pfn = end; + + memblock_add(PFN_PHYS(cluster->start_pfn), + cluster->numpages << PAGE_SHIFT); + /* Bit 0 is console/PALcode reserved. Bit 1 is non-volatile memory -- we might want to mark this for later. */ if (cluster->usage & 3) - continue; - - end = cluster->start_pfn + cluster->numpages; - if (end > max_low_pfn) - max_low_pfn = end; + memblock_reserve(PFN_PHYS(cluster->start_pfn), + cluster->numpages << PAGE_SHIFT); } /* @@ -354,87 +342,9 @@ setup_memory(void *kernel_end) max_low_pfn = mem_size_limit; } - /* Find the bounds of kernel memory. */ - start_kernel_pfn = PFN_DOWN(KERNEL_START_PHYS); - end_kernel_pfn = PFN_UP(virt_to_phys(kernel_end)); - bootmap_start = -1; - - try_again: - if (max_low_pfn <= end_kernel_pfn) - panic("not enough memory to boot"); - - /* We need to know how many physically contiguous pages - we'll need for the bootmap. */ - bootmap_pages = bootmem_bootmap_pages(max_low_pfn); - - /* Now find a good region where to allocate the bootmap. */ - for_each_mem_cluster(memdesc, cluster, i) { - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = start + cluster->numpages; - if (start >= max_low_pfn) - continue; - if (end > max_low_pfn) - end = max_low_pfn; - if (start < start_kernel_pfn) { - if (end > end_kernel_pfn - && end - end_kernel_pfn >= bootmap_pages) { - bootmap_start = end_kernel_pfn; - break; - } else if (end > start_kernel_pfn) - end = start_kernel_pfn; - } else if (start < end_kernel_pfn) - start = end_kernel_pfn; - if (end - start >= bootmap_pages) { - bootmap_start = start; - break; - } - } - - if (bootmap_start == ~0UL) { - max_low_pfn >>= 1; - goto try_again; - } - - /* Allocate the bootmap and mark the whole MM as reserved. */ - bootmap_size = init_bootmem(bootmap_start, max_low_pfn); - - /* Mark the free regions. */ - for_each_mem_cluster(memdesc, cluster, i) { - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = cluster->start_pfn + cluster->numpages; - if (start >= max_low_pfn) - continue; - if (end > max_low_pfn) - end = max_low_pfn; - if (start < start_kernel_pfn) { - if (end > end_kernel_pfn) { - free_bootmem(PFN_PHYS(start), - (PFN_PHYS(start_kernel_pfn) - - PFN_PHYS(start))); - printk("freeing pages %ld:%ld\n", - start, start_kernel_pfn); - start = end_kernel_pfn; - } else if (end > start_kernel_pfn) - end = start_kernel_pfn; - } else if (start < end_kernel_pfn) - start = end_kernel_pfn; - if (start >= end) - continue; - - free_bootmem(PFN_PHYS(start), PFN_PHYS(end) - PFN_PHYS(start)); - printk("freeing pages %ld:%ld\n", start, end); - } - - /* Reserve the bootmap memory. */ - reserve_bootmem(PFN_PHYS(bootmap_start), bootmap_size, - BOOTMEM_DEFAULT); - printk("reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size)); + /* Reserve the kernel memory. */ + kernel_size = virt_to_phys(kernel_end) - KERNEL_START_PHYS; + memblock_reserve(KERNEL_START_PHYS, kernel_size); #ifdef CONFIG_BLK_DEV_INITRD initrd_start = INITRD_START; @@ -450,18 +360,14 @@ setup_memory(void *kernel_end) initrd_end, phys_to_virt(PFN_PHYS(max_low_pfn))); } else { - reserve_bootmem(virt_to_phys((void *)initrd_start), - INITRD_SIZE, BOOTMEM_DEFAULT); + memblock_reserve(virt_to_phys((void *)initrd_start), + INITRD_SIZE); } } #endif /* CONFIG_BLK_DEV_INITRD */ } -#else -extern void setup_memory(void *); -#endif /* !CONFIG_DISCONTIGMEM */ -int __init -page_is_ram(unsigned long pfn) +int page_is_ram(unsigned long pfn) { struct memclust_struct * cluster; struct memdesc_struct * memdesc; @@ -496,6 +402,20 @@ register_cpus(void) arch_initcall(register_cpus); +#ifdef CONFIG_MAGIC_SYSRQ +static void sysrq_reboot_handler(u8 unused) +{ + machine_halt(); +} + +static const struct sysrq_key_op srm_sysrq_reboot_op = { + .handler = sysrq_reboot_handler, + .help_msg = "reboot(b)", + .action_msg = "Resetting", + .enable_mask = SYSRQ_ENABLE_BOOT, +}; +#endif + void __init setup_arch(char **cmdline_p) { @@ -529,10 +449,14 @@ setup_arch(char **cmdline_p) atomic_notifier_chain_register(&panic_notifier_list, &alpha_panic_block); -#ifdef CONFIG_ALPHA_GENERIC +#ifndef alpha_using_srm /* Assume that we've booted from SRM if we haven't booted from MILO. Detect the later by looking for "MILO" in the system serial nr. */ - alpha_using_srm = strncmp((const char *)hwrpb->ssn, "MILO", 4) != 0; + alpha_using_srm = !str_has_prefix((const char *)hwrpb->ssn, "MILO"); +#endif +#ifndef alpha_using_qemu + /* Similarly, look for QEMU. */ + alpha_using_qemu = strstr((const char *)hwrpb->ssn, "QEMU") != 0; #endif /* If we are using SRM, we want to allow callbacks @@ -544,14 +468,7 @@ setup_arch(char **cmdline_p) /* * Locate the command line. */ - /* Hack for Jensen... since we're restricted to 8 or 16 chars for - boot flags depending on the boot mode, we need some shorthand. - This should do for installation. */ - if (strcmp(COMMAND_LINE, "INSTALL") == 0) { - strlcpy(command_line, "root=/dev/fd0 load_ramdisk=1", sizeof command_line); - } else { - strlcpy(command_line, COMMAND_LINE, sizeof command_line); - } + strscpy(command_line, COMMAND_LINE, sizeof(command_line)); strcpy(boot_command_line, command_line); *cmdline_p = command_line; @@ -612,8 +529,8 @@ setup_arch(char **cmdline_p) /* If we're using SRM, make sysrq-b halt back to the prom, not auto-reboot. */ if (alpha_using_srm) { - struct sysrq_key_op *op = __sysrq_get_key_op('b'); - op->handler = (void *) machine_halt; + unregister_sysrq_key('b', __sysrq_reboot_op); + register_sysrq_key('b', &srm_sysrq_reboot_op); } #endif @@ -667,13 +584,6 @@ setup_arch(char **cmdline_p) "VERBOSE_MCHECK " #endif -#ifdef CONFIG_DISCONTIGMEM - "DISCONTIGMEM " -#ifdef CONFIG_NUMA - "NUMA " -#endif -#endif - #ifdef CONFIG_DEBUG_SPINLOCK "DEBUG_SPINLOCK " #endif @@ -696,6 +606,8 @@ setup_arch(char **cmdline_p) /* Find our memory. */ setup_memory(kernel_end); + memblock_set_bottom_up(true); + sparse_init(); /* First guess at cpu cache sizes. Do this before init_arch. */ determine_cpu_caches(cpu->type); @@ -715,14 +627,12 @@ setup_arch(char **cmdline_p) #ifdef CONFIG_VT #if defined(CONFIG_VGA_CONSOLE) - conswitchp = &vga_con; -#elif defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; + vgacon_register_screen(&vgacon_screen_info); #endif #endif /* Default root filesystem to sda2. */ - ROOT_DEV = Root_SDA2; + ROOT_DEV = MKDEV(SCSI_DISK0_MAJOR, 2); #ifdef CONFIG_EISA /* FIXME: only set this when we actually have EISA in this box? */ @@ -771,12 +681,6 @@ static int eb164_indices[] = {0,0,0,1,1,1,1,1,2,2,2,2,3,3,3,3,4}; static char alcor_names[][16] = {"Alcor", "Maverick", "Bret"}; static int alcor_indices[] = {0,0,0,1,1,1,0,0,0,0,0,0,2,2,2,2,2,2}; -static char eb64p_names[][16] = {"EB64+", "Cabriolet", "AlphaPCI64"}; -static int eb64p_indices[] = {0,0,1,2}; - -static char eb66_names[][8] = {"EB66", "EB66+"}; -static int eb66_indices[] = {0,0,1}; - static char marvel_names[][16] = { "Marvel/EV7" }; @@ -810,26 +714,26 @@ get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu) NULL, /* Ruby */ NULL, /* Flamingo */ NULL, /* Mannequin */ - &jensen_mv, + NULL, /* Jensens */ NULL, /* Pelican */ NULL, /* Morgan */ NULL, /* Sable -- see below. */ NULL, /* Medulla */ - &noname_mv, + NULL, /* Noname */ NULL, /* Turbolaser */ - &avanti_mv, + NULL, /* Avanti */ NULL, /* Mustang */ NULL, /* Alcor, Bret, Maverick. HWRPB inaccurate? */ NULL, /* Tradewind */ NULL, /* Mikasa -- see below. */ NULL, /* EB64 */ - NULL, /* EB66 -- see variation. */ - NULL, /* EB64+ -- see variation. */ - &alphabook1_mv, + NULL, /* EB66 */ + NULL, /* EB64+ */ + NULL, /* Alphabook1 */ &rawhide_mv, NULL, /* K2 */ - &lynx_mv, /* Lynx */ - &xl_mv, + NULL, /* Lynx */ + NULL, /* XL */ NULL, /* EB164 -- see variation. */ NULL, /* Noritake -- see below. */ NULL, /* Cortex */ @@ -868,19 +772,6 @@ get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu) &eb164_mv, &pc164_mv, &lx164_mv, &sx164_mv, &rx164_mv }; - static struct alpha_machine_vector *eb64p_vecs[] __initdata = - { - &eb64p_mv, - &cabriolet_mv, - &cabriolet_mv /* AlphaPCI64 */ - }; - - static struct alpha_machine_vector *eb66_vecs[] __initdata = - { - &eb66_mv, - &eb66p_mv - }; - static struct alpha_machine_vector *marvel_vecs[] __initdata = { &marvel_ev7_mv, @@ -948,14 +839,6 @@ get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu) if (vec == &eb164_mv && cpu == EV56_CPU) vec = &pc164_mv; break; - case ST_DEC_EB64P: - if (member < ARRAY_SIZE(eb64p_indices)) - vec = eb64p_vecs[eb64p_indices[member]]; - break; - case ST_DEC_EB66: - if (member < ARRAY_SIZE(eb66_indices)) - vec = eb66_vecs[eb66_indices[member]]; - break; case ST_DEC_MARVEL: if (member < ARRAY_SIZE(marvel_indices)) vec = marvel_vecs[marvel_indices[member]]; @@ -970,22 +853,13 @@ get_sysvec(unsigned long type, unsigned long variation, unsigned long cpu) vec = tsunami_vecs[tsunami_indices[member]]; break; case ST_DEC_1000: - if (cpu == EV5_CPU || cpu == EV56_CPU) - vec = &mikasa_primo_mv; - else - vec = &mikasa_mv; + vec = &mikasa_primo_mv; break; case ST_DEC_NORITAKE: - if (cpu == EV5_CPU || cpu == EV56_CPU) - vec = &noritake_primo_mv; - else - vec = &noritake_mv; + vec = &noritake_primo_mv; break; case ST_DEC_2100_A500: - if (cpu == EV5_CPU || cpu == EV56_CPU) - vec = &sable_gamma_mv; - else - vec = &sable_mv; + vec = &sable_gamma_mv; break; } } @@ -998,41 +872,27 @@ get_sysvec_byname(const char *name) static struct alpha_machine_vector *all_vecs[] __initdata = { &alcor_mv, - &alphabook1_mv, - &avanti_mv, - &cabriolet_mv, &clipper_mv, &dp264_mv, &eb164_mv, - &eb64p_mv, - &eb66_mv, - &eb66p_mv, &eiger_mv, - &jensen_mv, &lx164_mv, - &lynx_mv, &miata_mv, - &mikasa_mv, &mikasa_primo_mv, &monet_mv, &nautilus_mv, - &noname_mv, - &noritake_mv, &noritake_primo_mv, - &p2k_mv, &pc164_mv, &privateer_mv, &rawhide_mv, &ruffian_mv, &rx164_mv, - &sable_mv, &sable_gamma_mv, &shark_mv, &sx164_mv, &takara_mv, &webbrick_mv, &wildfire_mv, - &xl_mv, &xlt_mv }; @@ -1082,8 +942,9 @@ get_sysnames(unsigned long type, unsigned long variation, unsigned long cpu, default: /* default to variation "0" for now */ break; case ST_DEC_EB164: - if (member < ARRAY_SIZE(eb164_indices)) - *variation_name = eb164_names[eb164_indices[member]]; + if (member >= ARRAY_SIZE(eb164_indices)) + break; + *variation_name = eb164_names[eb164_indices[member]]; /* PC164 may show as EB164 variation, but with EV56 CPU, so, since no true EB164 had anything but EV5... */ if (eb164_indices[member] == 0 && cpu == EV56_CPU) @@ -1093,14 +954,6 @@ get_sysnames(unsigned long type, unsigned long variation, unsigned long cpu, if (member < ARRAY_SIZE(alcor_indices)) *variation_name = alcor_names[alcor_indices[member]]; break; - case ST_DEC_EB64P: - if (member < ARRAY_SIZE(eb64p_indices)) - *variation_name = eb64p_names[eb64p_indices[member]]; - break; - case ST_DEC_EB66: - if (member < ARRAY_SIZE(eb66_indices)) - *variation_name = eb66_names[eb66_indices[member]]; - break; case ST_DEC_MARVEL: if (member < ARRAY_SIZE(marvel_indices)) *variation_name = marvel_names[marvel_indices[member]]; @@ -1207,6 +1060,7 @@ show_cpuinfo(struct seq_file *f, void *slot) char *systype_name; char *sysvariation_name; int nr_processors; + unsigned long timer_freq; cpu_index = (unsigned) (cpu->type - 1); cpu_name = "Unknown"; @@ -1218,6 +1072,12 @@ show_cpuinfo(struct seq_file *f, void *slot) nr_processors = get_nr_processors(cpu, hwrpb->nr_processors); +#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200 + timer_freq = (100UL * hwrpb->intr_freq) / 4096; +#else + timer_freq = 100UL * CONFIG_HZ; +#endif + seq_printf(f, "cpu\t\t\t: Alpha\n" "cpu model\t\t: %s\n" "cpu variation\t\t: %ld\n" @@ -1243,8 +1103,7 @@ show_cpuinfo(struct seq_file *f, void *slot) (char*)hwrpb->ssn, est_cycle_freq ? : hwrpb->cycle_freq, est_cycle_freq ? "est." : "", - hwrpb->intr_freq / 4096, - (100 * hwrpb->intr_freq / 4096) % 100, + timer_freq / 100, timer_freq % 100, hwrpb->pagesize, hwrpb->pa_bits, hwrpb->max_asn, @@ -1468,6 +1327,7 @@ c_start(struct seq_file *f, loff_t *pos) static void * c_next(struct seq_file *f, void *v, loff_t *pos) { + (*pos)++; return NULL; } diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 6cec2881acbf..e62d1d461b1f 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/signal.c * @@ -6,7 +7,8 @@ * 1997-11-02 Modified for POSIX.1b signals by Richard Henderson */ -#include <linux/sched.h> +#include <linux/sched/signal.h> +#include <linux/sched/task_stack.h> #include <linux/kernel.h> #include <linux/signal.h> #include <linux/errno.h> @@ -20,9 +22,9 @@ #include <linux/binfmts.h> #include <linux/bitops.h> #include <linux/syscalls.h> -#include <linux/tracehook.h> +#include <linux/resume_user_mode.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/sigcontext.h> #include <asm/ucontext.h> @@ -63,7 +65,7 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig, if (act) { old_sigset_t mask; - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || + if (!access_ok(act, sizeof(*act)) || __get_user(new_ka.sa.sa_handler, &act->sa_handler) || __get_user(new_ka.sa.sa_flags, &act->sa_flags) || __get_user(mask, &act->sa_mask)) @@ -75,7 +77,7 @@ SYSCALL_DEFINE3(osf_sigaction, int, sig, ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || + if (!access_ok(oact, sizeof(*oact)) || __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) @@ -148,9 +150,10 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs) { unsigned long usp; struct switch_stack *sw = (struct switch_stack *)regs - 1; - long i, err = __get_user(regs->pc, &sc->sc_pc); + long err = __get_user(regs->pc, &sc->sc_pc); - current_thread_info()->restart_block.fn = do_no_restart_syscall; + current->restart_block.fn = do_no_restart_syscall; + current_thread_info()->status |= TS_SAVED_FP | TS_RESTORE_FP; sw->r26 = (unsigned long) ret_from_sys_call; @@ -187,9 +190,9 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs) err |= __get_user(usp, sc->sc_regs+30); wrusp(usp); - for (i = 0; i < 31; i++) - err |= __get_user(sw->fp[i], sc->sc_fpregs+i); - err |= __get_user(sw->fp[31], &sc->sc_fpcr); + err |= __copy_from_user(current_thread_info()->fp, + sc->sc_fpregs, 31 * 8); + err |= __get_user(current_thread_info()->fp[31], &sc->sc_fpcr); return err; } @@ -205,7 +208,7 @@ do_sigreturn(struct sigcontext __user *sc) sigset_t set; /* Verify that it's a good sigcontext before using it */ - if (!access_ok(VERIFY_READ, sc, sizeof(*sc))) + if (!access_ok(sc, sizeof(*sc))) goto give_sigsegv; if (__get_user(set.sig[0], &sc->sc_mask)) goto give_sigsegv; @@ -217,19 +220,13 @@ do_sigreturn(struct sigcontext __user *sc) /* Send SIGTRAP if we're single-stepping: */ if (ptrace_cancel_bpt (current)) { - siginfo_t info; - - info.si_signo = SIGTRAP; - info.si_errno = 0; - info.si_code = TRAP_BRKPT; - info.si_addr = (void __user *) regs->pc; - info.si_trapno = 0; - send_sig_info(SIGTRAP, &info, current); + send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *) regs->pc, + current); } return; give_sigsegv: - force_sig(SIGSEGV, current); + force_sig(SIGSEGV); } asmlinkage void @@ -239,7 +236,7 @@ do_rt_sigreturn(struct rt_sigframe __user *frame) sigset_t set; /* Verify that it's a good ucontext_t before using it */ - if (!access_ok(VERIFY_READ, &frame->uc, sizeof(frame->uc))) + if (!access_ok(&frame->uc, sizeof(frame->uc))) goto give_sigsegv; if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) goto give_sigsegv; @@ -251,19 +248,13 @@ do_rt_sigreturn(struct rt_sigframe __user *frame) /* Send SIGTRAP if we're single-stepping: */ if (ptrace_cancel_bpt (current)) { - siginfo_t info; - - info.si_signo = SIGTRAP; - info.si_errno = 0; - info.si_code = TRAP_BRKPT; - info.si_addr = (void __user *) regs->pc; - info.si_trapno = 0; - send_sig_info(SIGTRAP, &info, current); + send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *) regs->pc, + current); } return; give_sigsegv: - force_sig(SIGSEGV, current); + force_sig(SIGSEGV); } @@ -282,7 +273,7 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, unsigned long mask, unsigned long sp) { struct switch_stack *sw = (struct switch_stack *)regs - 1; - long i, err = 0; + long err = 0; err |= __put_user(on_sig_stack((unsigned long)sc), &sc->sc_onstack); err |= __put_user(mask, &sc->sc_mask); @@ -322,10 +313,10 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, err |= __put_user(sp, sc->sc_regs+30); err |= __put_user(0, sc->sc_regs+31); - for (i = 0; i < 31; i++) - err |= __put_user(sw->fp[i], sc->sc_fpregs+i); + err |= __copy_to_user(sc->sc_fpregs, + current_thread_info()->fp, 31 * 8); err |= __put_user(0, sc->sc_fpregs+31); - err |= __put_user(sw->fp[31], &sc->sc_fpcr); + err |= __put_user(current_thread_info()->fp[31], &sc->sc_fpcr); err |= __put_user(regs->trap_a0, &sc->sc_traparg_a0); err |= __put_user(regs->trap_a1, &sc->sc_traparg_a1); @@ -342,7 +333,7 @@ setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) oldsp = rdusp(); frame = get_sigframe(ksig, oldsp, sizeof(*frame)); - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) + if (!access_ok(frame, sizeof(*frame))) return -EFAULT; err |= setup_sigcontext(&frame->sc, regs, set->sig[0], oldsp); @@ -387,7 +378,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) oldsp = rdusp(); frame = get_sigframe(ksig, oldsp, sizeof(*frame)); - if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) + if (!access_ok(frame, sizeof(*frame))) return -EFAULT; err |= copy_siginfo_to_user(&frame->info, &ksig->info); @@ -463,7 +454,7 @@ syscall_restart(unsigned long r0, unsigned long r19, regs->r0 = EINTR; break; } - /* fallthrough */ + fallthrough; case ERESTARTNOINTR: regs->r0 = r0; /* reset v0 and a3 and replay syscall */ regs->r19 = r19; @@ -537,15 +528,17 @@ do_work_pending(struct pt_regs *regs, unsigned long thread_flags, schedule(); } else { local_irq_enable(); - if (thread_flags & _TIF_SIGPENDING) { + if (thread_flags & (_TIF_SIGPENDING|_TIF_NOTIFY_SIGNAL)) { + preempt_disable(); + save_fpu(); + preempt_enable(); do_signal(regs, r0, r19); r0 = 0; } else { - clear_thread_flag(TIF_NOTIFY_RESUME); - tracehook_notify_resume(regs); + resume_user_mode_work(regs); } } local_irq_disable(); - thread_flags = current_thread_info()->flags; + thread_flags = read_thread_flags(); } while (thread_flags & _TIF_WORK_MASK); } diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c index c803fc76ae4f..a5a6ed97a6ce 100644 --- a/arch/alpha/kernel/smc37c669.c +++ b/arch/alpha/kernel/smc37c669.c @@ -10,7 +10,8 @@ #include <asm/hwrpb.h> #include <asm/io.h> -#include <asm/segment.h> + +#include "proto.h" #if 0 # define DBG_DEVS(args) printk args @@ -2007,11 +2008,8 @@ static void __init SMC37c669_config_mode( static unsigned char __init SMC37c669_read_config( unsigned char index ) { - unsigned char data; - - wb( &SMC37c669->index_port, index ); - data = rb( &SMC37c669->data_port ); - return data; + wb(&SMC37c669->index_port, index); + return rb(&SMC37c669->data_port); } /* @@ -2434,13 +2432,15 @@ int __init smcc669_write( struct FILE *fp, int size, int number, unsigned char * } #endif -void __init +#if SMC_DEBUG +static void __init SMC37c669_dump_registers(void) { int i; for (i = 0; i <= 0x29; i++) printk("-- CR%02x : %02x\n", i, SMC37c669_read_config(i)); } +#endif /*+ * ============================================================================ * = SMC_init - SMC37c669 Super I/O controller initialization = diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c index 6886b834f487..8028273f0d16 100644 --- a/arch/alpha/kernel/smc37c93x.c +++ b/arch/alpha/kernel/smc37c93x.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * SMC 37C93X initialization code */ @@ -10,7 +11,8 @@ #include <asm/hwrpb.h> #include <asm/io.h> -#include <asm/segment.h> + +#include "proto.h" #define SMC_DEBUG 0 diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 7b60834fb4b2..ed06367ece57 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/smp.c * @@ -14,7 +15,7 @@ #include <linux/kernel.h> #include <linux/kernel_stat.h> #include <linux/module.h> -#include <linux/sched.h> +#include <linux/sched/mm.h> #include <linux/mm.h> #include <linux/err.h> #include <linux/threads.h> @@ -35,10 +36,9 @@ #include <asm/io.h> #include <asm/irq.h> -#include <asm/pgtable.h> -#include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> +#include <asm/cacheflush.h> #include "proto.h" #include "irq_impl.h" @@ -63,7 +63,6 @@ static struct { enum ipi_message_type { IPI_RESCHEDULE, IPI_CALL_FUNC, - IPI_CALL_FUNC_SINGLE, IPI_CPU_STOP, }; @@ -116,7 +115,7 @@ wait_boot_cpu_to_stop(int cpuid) /* * Where secondaries begin a life of C. */ -void __cpuinit +void __init smp_callin(void) { int cpuid = hard_smp_processor_id(); @@ -138,12 +137,14 @@ smp_callin(void) /* Get our local ticker going. */ smp_setup_percpu_timer(cpuid); + init_clockevent(); /* Call platform-specific callin, if specified */ - if (alpha_mv.smp_callin) alpha_mv.smp_callin(); + if (alpha_mv.smp_callin) + alpha_mv.smp_callin(); /* All kernel threads share the same mm context. */ - atomic_inc(&init_mm.mm_count); + mmgrab(&init_mm); current->active_mm = &init_mm; /* inform the notifiers about the new cpu */ @@ -166,8 +167,7 @@ smp_callin(void) DBGS(("smp_callin: commencing CPU %d current %p active_mm %p\n", cpuid, current, current->active_mm)); - preempt_disable(); - cpu_startup_entry(CPUHP_ONLINE); + cpu_startup_entry(CPUHP_AP_ONLINE_IDLE); } /* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ @@ -194,7 +194,7 @@ wait_for_txrdy (unsigned long cpumask) * Send a message to a secondary's console. "START" is one such * interesting message. ;-) */ -static void __cpuinit +static void send_secondary_console_msg(char *str, int cpuid) { struct percpu_struct *cpu; @@ -264,9 +264,10 @@ recv_secondary_console_msg(void) if (cnt <= 0 || cnt >= 80) strcpy(buf, "<<< BOGUS MSG >>>"); else { - cp1 = (char *) &cpu->ipc_buffer[11]; + cp1 = (char *) &cpu->ipc_buffer[1]; cp2 = buf; - strcpy(cp2, cp1); + memcpy(cp2, cp1, cnt); + cp2[cnt] = '\0'; while ((cp2 = strchr(cp2, '\r')) != 0) { *cp2 = ' '; @@ -285,7 +286,7 @@ recv_secondary_console_msg(void) /* * Convince the console to have a secondary cpu begin execution. */ -static int __cpuinit +static int secondary_cpu_start(int cpuid, struct task_struct *idle) { struct percpu_struct *cpu; @@ -356,7 +357,7 @@ secondary_cpu_start(int cpuid, struct task_struct *idle) /* * Bring one cpu online. */ -static int __cpuinit +static int smp_boot_one_cpu(int cpuid, struct task_struct *idle) { unsigned long timeout; @@ -467,12 +468,7 @@ smp_prepare_cpus(unsigned int max_cpus) smp_num_cpus = smp_num_probed; } -void -smp_prepare_boot_cpu(void) -{ -} - -int __cpuinit +int __cpu_up(unsigned int cpu, struct task_struct *tidle) { smp_boot_one_cpu(cpu, tidle); @@ -497,42 +493,6 @@ smp_cpus_done(unsigned int max_cpus) ((bogosum + 2500) / (5000/HZ)) % 100); } - -void -smp_percpu_timer_interrupt(struct pt_regs *regs) -{ - struct pt_regs *old_regs; - int cpu = smp_processor_id(); - unsigned long user = user_mode(regs); - struct cpuinfo_alpha *data = &cpu_data[cpu]; - - old_regs = set_irq_regs(regs); - - /* Record kernel PC. */ - profile_tick(CPU_PROFILING); - - if (!--data->prof_counter) { - /* We need to make like a normal interrupt -- otherwise - timer interrupts ignore the global interrupt lock, - which would be a Bad Thing. */ - irq_enter(); - - update_process_times(user); - - data->prof_counter = data->prof_multiplier; - - irq_exit(); - } - set_irq_regs(old_regs); -} - -int -setup_profiling_timer(unsigned int multiplier) -{ - return -EINVAL; -} - - static void send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation) { @@ -578,10 +538,6 @@ handle_ipi(struct pt_regs *regs) generic_smp_call_function_interrupt(); break; - case IPI_CALL_FUNC_SINGLE: - generic_smp_call_function_single_interrupt(); - break; - case IPI_CPU_STOP: halt(); @@ -602,7 +558,7 @@ handle_ipi(struct pt_regs *regs) } void -smp_send_reschedule(int cpu) +arch_smp_send_reschedule(int cpu) { #ifdef DEBUG_IPI_MSG if (cpu == hard_smp_processor_id()) @@ -616,7 +572,7 @@ void smp_send_stop(void) { cpumask_t to_whom; - cpumask_copy(&to_whom, cpu_possible_mask); + cpumask_copy(&to_whom, cpu_online_mask); cpumask_clear_cpu(smp_processor_id(), &to_whom); #ifdef DEBUG_IPI_MSG if (hard_smp_processor_id() != boot_cpu_id) @@ -632,7 +588,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); + send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC); } static void @@ -645,8 +601,7 @@ void smp_imb(void) { /* Must wait other processors to flush their icache before continue. */ - if (on_each_cpu(ipi_imb, NULL, 1)) - printk(KERN_CRIT "smp_imb: timed out\n"); + on_each_cpu(ipi_imb, NULL, 1); } EXPORT_SYMBOL(smp_imb); @@ -661,9 +616,7 @@ flush_tlb_all(void) { /* Although we don't have any data to pass, we do want to synchronize with the other processors. */ - if (on_each_cpu(ipi_flush_tlb_all, NULL, 1)) { - printk(KERN_CRIT "flush_tlb_all: timed out\n"); - } + on_each_cpu(ipi_flush_tlb_all, NULL, 1); } #define asn_locked() (cpu_data[smp_processor_id()].asn_lock) @@ -671,7 +624,7 @@ flush_tlb_all(void) static void ipi_flush_tlb_mm(void *x) { - struct mm_struct *mm = (struct mm_struct *) x; + struct mm_struct *mm = x; if (mm == current->active_mm && !asn_locked()) flush_tlb_current(mm); else @@ -698,9 +651,7 @@ flush_tlb_mm(struct mm_struct *mm) } } - if (smp_call_function(ipi_flush_tlb_mm, mm, 1)) { - printk(KERN_CRIT "flush_tlb_mm: timed out\n"); - } + smp_call_function(ipi_flush_tlb_mm, mm, 1); preempt_enable(); } @@ -715,7 +666,7 @@ struct flush_tlb_page_struct { static void ipi_flush_tlb_page(void *x) { - struct flush_tlb_page_struct *data = (struct flush_tlb_page_struct *)x; + struct flush_tlb_page_struct *data = x; struct mm_struct * mm = data->mm; if (mm == current->active_mm && !asn_locked()) @@ -751,9 +702,7 @@ flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) data.mm = mm; data.addr = addr; - if (smp_call_function(ipi_flush_tlb_page, &data, 1)) { - printk(KERN_CRIT "flush_tlb_page: timed out\n"); - } + smp_call_function(ipi_flush_tlb_page, &data, 1); preempt_enable(); } @@ -778,7 +727,7 @@ ipi_flush_icache_page(void *x) } void -flush_icache_user_range(struct vm_area_struct *vma, struct page *page, +flush_icache_user_page(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len) { struct mm_struct *mm = vma->vm_mm; @@ -803,9 +752,7 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page, } } - if (smp_call_function(ipi_flush_icache_page, mm, 1)) { - printk(KERN_CRIT "flush_icache_page: timed out\n"); - } + smp_call_function(ipi_flush_icache_page, mm, 1); preempt_enable(); } diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c index ffe996a54fad..217b4dca51dd 100644 --- a/arch/alpha/kernel/srm_env.c +++ b/arch/alpha/kernel/srm_env.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * srm_env.c - Access to SRM environment * variables through linux' procfs @@ -9,23 +10,6 @@ * <J.A.K.Mouw@its.tudelft.nl>. It is based on an idea * provided by DEC^WCompaq^WIntel's "Jumpstart" CD. They * included a patch like this as well. Thanks for idea! - * - * This program is free software; you can redistribute - * it and/or modify it under the terms of the GNU General - * Public License version 2 as published by the Free Software - * Foundation. - * - * This program is distributed in the hope that it will be - * useful, but WITHOUT ANY WARRANTY; without even the implied - * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place, - * Suite 330, Boston, MA 02111-1307 USA - * */ #include <linux/kernel.h> @@ -35,7 +19,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <asm/console.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/machvec.h> #define BASE_DIR "srm_environment" /* Subdir in /proc/ */ @@ -99,14 +83,14 @@ static int srm_env_proc_show(struct seq_file *m, void *v) static int srm_env_proc_open(struct inode *inode, struct file *file) { - return single_open(file, srm_env_proc_show, PDE_DATA(inode)); + return single_open(file, srm_env_proc_show, pde_data(inode)); } static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer, size_t count, loff_t *pos) { int res; - unsigned long id = (unsigned long)PDE_DATA(file_inode(file)); + unsigned long id = (unsigned long)pde_data(file_inode(file)); char *buf = (char *) __get_free_page(GFP_USER); unsigned long ret1, ret2; @@ -135,13 +119,12 @@ static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer, return res; } -static const struct file_operations srm_env_proc_fops = { - .owner = THIS_MODULE, - .open = srm_env_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = srm_env_proc_write, +static const struct proc_ops srm_env_proc_ops = { + .proc_open = srm_env_proc_open, + .proc_read = seq_read, + .proc_lseek = seq_lseek, + .proc_release = single_release, + .proc_write = srm_env_proc_write, }; static int __init @@ -198,7 +181,7 @@ srm_env_init(void) entry = srm_named_entries; while (entry->name && entry->id) { if (!proc_create_data(entry->name, 0644, named_dir, - &srm_env_proc_fops, (void *)entry->id)) + &srm_env_proc_ops, (void *)entry->id)) goto cleanup; entry++; } @@ -210,7 +193,7 @@ srm_env_init(void) char name[4]; sprintf(name, "%ld", var_num); if (!proc_create_data(name, 0644, numbered_dir, - &srm_env_proc_fops, (void *)var_num)) + &srm_env_proc_ops, (void *)var_num)) goto cleanup; } diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c index 6f01d9ad7b81..d19e51ec711d 100644 --- a/arch/alpha/kernel/srmcons.c +++ b/arch/alpha/kernel/srmcons.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/srmcons.c * @@ -18,7 +19,9 @@ #include <linux/tty_flip.h> #include <asm/console.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> + +#include "proto.h" static DEFINE_SPINLOCK(srmcons_callback_lock); @@ -52,21 +55,22 @@ srmcons_do_receive_chars(struct tty_port *port) do { result.as_long = callback_getc(0); if (result.bits.status < 2) { - tty_insert_flip_char(port, (char)result.bits.c, 0); + tty_insert_flip_char(port, (u8)result.bits.c, 0); count++; } } while((result.bits.status & 1) && (++loops < 10)); if (count) - tty_schedule_flip(port); + tty_flip_buffer_push(port); return count; } static void -srmcons_receive_chars(unsigned long data) +srmcons_receive_chars(struct timer_list *t) { - struct srmcons_private *srmconsp = (struct srmcons_private *)data; + struct srmcons_private *srmconsp = timer_container_of(srmconsp, t, + timer); struct tty_port *port = &srmconsp->port; unsigned long flags; int incr = 10; @@ -87,30 +91,27 @@ srmcons_receive_chars(unsigned long data) } /* called with callback_lock held */ -static int -srmcons_do_write(struct tty_port *port, const char *buf, int count) +static void +srmcons_do_write(struct tty_port *port, const u8 *buf, size_t count) { - static char str_cr[1] = "\r"; - long c, remaining = count; + size_t c; srmcons_result result; - char *cur; - int need_cr; - for (cur = (char *)buf; remaining > 0; ) { - need_cr = 0; + while (count > 0) { + bool need_cr = false; /* * Break it up into reasonable size chunks to allow a chance * for input to get in */ - for (c = 0; c < min_t(long, 128L, remaining) && !need_cr; c++) - if (cur[c] == '\n') - need_cr = 1; + for (c = 0; c < min_t(size_t, 128U, count) && !need_cr; c++) + if (buf[c] == '\n') + need_cr = true; while (c > 0) { - result.as_long = callback_puts(0, cur, c); + result.as_long = callback_puts(0, buf, c); c -= result.bits.c; - remaining -= result.bits.c; - cur += result.bits.c; + count -= result.bits.c; + buf += result.bits.c; /* * Check for pending input iff a tty port was provided @@ -120,40 +121,32 @@ srmcons_do_write(struct tty_port *port, const char *buf, int count) } while (need_cr) { - result.as_long = callback_puts(0, str_cr, 1); + result.as_long = callback_puts(0, "\r", 1); if (result.bits.c > 0) - need_cr = 0; + need_cr = false; } } - return count; } -static int -srmcons_write(struct tty_struct *tty, - const unsigned char *buf, int count) +static ssize_t +srmcons_write(struct tty_struct *tty, const u8 *buf, size_t count) { unsigned long flags; spin_lock_irqsave(&srmcons_callback_lock, flags); - srmcons_do_write(tty->port, (const char *) buf, count); + srmcons_do_write(tty->port, buf, count); spin_unlock_irqrestore(&srmcons_callback_lock, flags); return count; } -static int +static unsigned int srmcons_write_room(struct tty_struct *tty) { return 512; } static int -srmcons_chars_in_buffer(struct tty_struct *tty) -{ - return 0; -} - -static int srmcons_open(struct tty_struct *tty, struct file *filp) { struct srmcons_private *srmconsp = &srmcons_singleton; @@ -185,7 +178,7 @@ srmcons_close(struct tty_struct *tty, struct file *filp) if (tty->count == 1) { port->tty = NULL; - del_timer(&srmconsp->timer); + timer_delete(&srmconsp->timer); } spin_unlock_irqrestore(&port->lock, flags); @@ -199,48 +192,49 @@ static const struct tty_operations srmcons_ops = { .close = srmcons_close, .write = srmcons_write, .write_room = srmcons_write_room, - .chars_in_buffer= srmcons_chars_in_buffer, }; static int __init srmcons_init(void) { - setup_timer(&srmcons_singleton.timer, srmcons_receive_chars, - (unsigned long)&srmcons_singleton); - if (srm_is_registered_console) { - struct tty_driver *driver; - int err; - - driver = alloc_tty_driver(MAX_SRM_CONSOLE_DEVICES); - if (!driver) - return -ENOMEM; - - tty_port_init(&srmcons_singleton.port); - - driver->driver_name = "srm"; - driver->name = "srm"; - driver->major = 0; /* dynamic */ - driver->minor_start = 0; - driver->type = TTY_DRIVER_TYPE_SYSTEM; - driver->subtype = SYSTEM_TYPE_SYSCONS; - driver->init_termios = tty_std_termios; - tty_set_operations(driver, &srmcons_ops); - tty_port_link_device(&srmcons_singleton.port, driver, 0); - err = tty_register_driver(driver); - if (err) { - put_tty_driver(driver); - tty_port_destroy(&srmcons_singleton.port); - return err; - } - srmcons_driver = driver; - } + struct tty_driver *driver; + int err; - return -ENODEV; -} + timer_setup(&srmcons_singleton.timer, srmcons_receive_chars, 0); + + if (!srm_is_registered_console) + return -ENODEV; + + driver = tty_alloc_driver(MAX_SRM_CONSOLE_DEVICES, 0); + if (IS_ERR(driver)) + return PTR_ERR(driver); + + tty_port_init(&srmcons_singleton.port); -module_init(srmcons_init); + driver->driver_name = "srm"; + driver->name = "srm"; + driver->major = 0; /* dynamic */ + driver->minor_start = 0; + driver->type = TTY_DRIVER_TYPE_SYSTEM; + driver->subtype = SYSTEM_TYPE_SYSCONS; + driver->init_termios = tty_std_termios; + tty_set_operations(driver, &srmcons_ops); + tty_port_link_device(&srmcons_singleton.port, driver, 0); + err = tty_register_driver(driver); + if (err) + goto err_free_drv; + + srmcons_driver = driver; + + return 0; +err_free_drv: + tty_driver_kref_put(driver); + tty_port_destroy(&srmcons_singleton.port); + + return err; +} +device_initcall(srmcons_init); - /* * The console driver */ diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c index 118dc6af1805..e063b3857b3d 100644 --- a/arch/alpha/kernel/sys_alcor.c +++ b/arch/alpha/kernel/sys_alcor.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_alcor.c * @@ -22,7 +23,6 @@ #include <asm/dma.h> #include <asm/mmu_context.h> #include <asm/irq.h> -#include <asm/pgtable.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> @@ -132,7 +132,8 @@ alcor_init_irq(void) init_i8259a_irqs(); common_init_isa_dma(); - setup_irq(16+31, &isa_cascade_irqaction); + if (request_irq(16 + 31, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } @@ -181,10 +182,10 @@ alcor_init_irq(void) * comes in on. This makes interrupt processing much easier. */ -static int __init +static int alcor_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[7][5] __initdata = { + static char irq_tab[7][5] = { /*INT INTA INTB INTC INTD */ /* note: IDSEL 17 is XLT only */ {16+13, 16+13, 16+13, 16+13, 16+13}, /* IdSel 17, TULIP */ diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c index 4c50f8f40cbb..54e75d4fdbe3 100644 --- a/arch/alpha/kernel/sys_cabriolet.c +++ b/arch/alpha/kernel/sys_cabriolet.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_cabriolet.c * @@ -5,8 +6,7 @@ * Copyright (C) 1996 Jay A Estabrook * Copyright (C) 1998, 1999, 2000 Richard Henderson * - * Code supporting the Cabriolet (AlphaPC64), EB66+, and EB164, - * PC164 and LX164. + * Code supporting the PC164 and LX164. */ #include <linux/kernel.h> @@ -22,10 +22,7 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_apecs.h> #include <asm/core_cia.h> -#include <asm/core_lca.h> #include <asm/tlbflush.h> #include "proto.h" @@ -111,7 +108,8 @@ common_init_irq(void (*srm_dev_int)(unsigned long v)) } common_init_isa_dma(); - setup_irq(16+4, &isa_cascade_irqaction); + if (request_irq(16 + 4, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } #ifndef CONFIG_ALPHA_PC164 @@ -173,10 +171,10 @@ pc164_init_irq(void) * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip. */ -static inline int __init +static inline int eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[5][5] __initdata = { + static char irq_tab[5][5] = { /*INT INTA INTB INTC INTD */ {16+0, 16+0, 16+5, 16+9, 16+13}, /* IdSel 6, slot 0, J25 */ {16+1, 16+1, 16+6, 16+10, 16+14}, /* IdSel 7, slot 1, J26 */ @@ -203,10 +201,10 @@ eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip. */ -static inline int __init +static inline int cabriolet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[5][5] __initdata = { + static char irq_tab[5][5] = { /*INT INTA INTB INTC INTD */ { 16+2, 16+2, 16+7, 16+11, 16+15}, /* IdSel 5, slot 2, J21 */ { 16+0, 16+0, 16+5, 16+9, 16+13}, /* IdSel 6, slot 0, J19 */ @@ -232,13 +230,6 @@ cabriolet_enable_ide(void) } static inline void __init -cabriolet_init_pci(void) -{ - common_init_pci(); - cabriolet_enable_ide(); -} - -static inline void __init cia_cab_init_pci(void) { cia_init_pci(); @@ -287,10 +278,10 @@ cia_cab_init_pci(void) * */ -static inline int __init +static inline int alphapc164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[7][5] __initdata = { + static char irq_tab[7][5] = { /*INT INTA INTB INTC INTD */ { 16+2, 16+2, 16+9, 16+13, 16+17}, /* IdSel 5, slot 2, J20 */ { 16+0, 16+0, 16+7, 16+11, 16+15}, /* IdSel 6, slot 0, J29 */ @@ -316,81 +307,6 @@ alphapc164_init_pci(void) * The System Vector */ -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_CABRIOLET) -struct alpha_machine_vector cabriolet_mv __initmv = { - .vector_name = "Cabriolet", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = apecs_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = cabriolet_init_pci, - .pci_map_irq = cabriolet_map_irq, - .pci_swizzle = common_swizzle, -}; -#ifndef CONFIG_ALPHA_EB64P -ALIAS_MV(cabriolet) -#endif -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB164) -struct alpha_machine_vector eb164_mv __initmv = { - .vector_name = "EB164", - DO_EV5_MMU, - DO_DEFAULT_RTC, - DO_CIA_IO, - .machine_check = cia_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = CIA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = cia_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = cia_cab_init_pci, - .kill_arch = cia_kill_arch, - .pci_map_irq = cabriolet_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(eb164) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB66P) -struct alpha_machine_vector eb66p_mv __initmv = { - .vector_name = "EB66+", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_LCA_IO, - .machine_check = lca_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 35, - .device_interrupt = cabriolet_device_interrupt, - - .init_arch = lca_init_arch, - .init_irq = cabriolet_init_irq, - .init_rtc = common_init_rtc, - .init_pci = cabriolet_init_pci, - .pci_map_irq = eb66p_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(eb66p) -#endif - #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LX164) struct alpha_machine_vector lx164_mv __initmv = { .vector_name = "LX164", diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c index 5bf401f7ea97..9fb445d7dca5 100644 --- a/arch/alpha/kernel/sys_dp264.c +++ b/arch/alpha/kernel/sys_dp264.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_dp264.c * @@ -25,7 +26,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_tsunami.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> @@ -190,9 +190,6 @@ static struct irq_chip clipper_irq_type = { static void dp264_device_interrupt(unsigned long vector) { -#if 1 - printk("dp264_device_interrupt: NOT IMPLEMENTED YET!!\n"); -#else unsigned long pld; unsigned int i; @@ -210,12 +207,7 @@ dp264_device_interrupt(unsigned long vector) isa_device_interrupt(vector); else handle_irq(16 + i); -#if 0 - TSUNAMI_cchip->dir0.csr = 1UL << i; mb(); - tmp = TSUNAMI_cchip->dir0.csr; -#endif } -#endif } static void @@ -364,7 +356,7 @@ clipper_init_irq(void) * 10 64 bit PCI option slot 3 (not bus 0) */ -static int __init +static int isa_irq_fixup(const struct pci_dev *dev, int irq) { u8 irq8; @@ -380,10 +372,10 @@ isa_irq_fixup(const struct pci_dev *dev, int irq) return irq8 & 0xf; } -static int __init +static int dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[6][5] __initdata = { + static char irq_tab[6][5] = { /*INT INTA INTB INTC INTD */ { -1, -1, -1, -1, -1}, /* IdSel 5 ISA Bridge */ { 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/ @@ -402,10 +394,10 @@ dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return isa_irq_fixup(dev, irq); } -static int __init +static int monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[13][5] __initdata = { + static char irq_tab[13][5] = { /*INT INTA INTB INTC INTD */ { 45, 45, 45, 45, 45}, /* IdSel 3 21143 PCI1 */ { -1, -1, -1, -1, -1}, /* IdSel 4 unused */ @@ -431,7 +423,7 @@ monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP); } -static u8 __init +static u8 monet_swizzle(struct pci_dev *dev, u8 *pinp) { struct pci_controller *hose = dev->sysdata; @@ -464,10 +456,10 @@ monet_swizzle(struct pci_dev *dev, u8 *pinp) return slot; } -static int __init +static int webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[13][5] __initdata = { + static char irq_tab[13][5] = { /*INT INTA INTB INTC INTD */ { -1, -1, -1, -1, -1}, /* IdSel 7 ISA Bridge */ { -1, -1, -1, -1, -1}, /* IdSel 8 unused */ @@ -486,10 +478,10 @@ webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP); } -static int __init +static int clipper_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[7][5] __initdata = { + static char irq_tab[7][5] = { /*INT INTA INTB INTC INTD */ { 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */ { 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */ diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c deleted file mode 100644 index ad40a425e841..000000000000 --- a/arch/alpha/kernel/sys_eb64p.c +++ /dev/null @@ -1,237 +0,0 @@ -/* - * linux/arch/alpha/kernel/sys_eb64p.c - * - * Copyright (C) 1995 David A Rusling - * Copyright (C) 1996 Jay A Estabrook - * Copyright (C) 1998, 1999 Richard Henderson - * - * Code supporting the EB64+ and EB66. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/bitops.h> - -#include <asm/ptrace.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/mmu_context.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_apecs.h> -#include <asm/core_lca.h> -#include <asm/hwrpb.h> -#include <asm/tlbflush.h> - -#include "proto.h" -#include "irq_impl.h" -#include "pci_impl.h" -#include "machvec_impl.h" - - -/* Note mask bit is true for DISABLED irqs. */ -static unsigned int cached_irq_mask = -1; - -static inline void -eb64p_update_irq_hw(unsigned int irq, unsigned long mask) -{ - outb(mask >> (irq >= 24 ? 24 : 16), (irq >= 24 ? 0x27 : 0x26)); -} - -static inline void -eb64p_enable_irq(struct irq_data *d) -{ - eb64p_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << d->irq)); -} - -static void -eb64p_disable_irq(struct irq_data *d) -{ - eb64p_update_irq_hw(d->irq, cached_irq_mask |= 1 << d->irq); -} - -static struct irq_chip eb64p_irq_type = { - .name = "EB64P", - .irq_unmask = eb64p_enable_irq, - .irq_mask = eb64p_disable_irq, - .irq_mask_ack = eb64p_disable_irq, -}; - -static void -eb64p_device_interrupt(unsigned long vector) -{ - unsigned long pld; - unsigned int i; - - /* Read the interrupt summary registers */ - pld = inb(0x26) | (inb(0x27) << 8); - - /* - * Now, for every possible bit set, work through - * them and call the appropriate interrupt handler. - */ - while (pld) { - i = ffz(~pld); - pld &= pld - 1; /* clear least bit set */ - - if (i == 5) { - isa_device_interrupt(vector); - } else { - handle_irq(16 + i); - } - } -} - -static void __init -eb64p_init_irq(void) -{ - long i; - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_CABRIOLET) - /* - * CABRIO SRM may not set variation correctly, so here we test - * the high word of the interrupt summary register for the RAZ - * bits, and hope that a true EB64+ would read all ones... - */ - if (inw(0x806) != 0xffff) { - extern struct alpha_machine_vector cabriolet_mv; - - printk("Detected Cabriolet: correcting HWRPB.\n"); - - hwrpb->sys_variation |= 2L << 10; - hwrpb_update_checksum(hwrpb); - - alpha_mv = cabriolet_mv; - alpha_mv.init_irq(); - return; - } -#endif /* GENERIC */ - - outb(0xff, 0x26); - outb(0xff, 0x27); - - init_i8259a_irqs(); - - for (i = 16; i < 32; ++i) { - irq_set_chip_and_handler(i, &eb64p_irq_type, handle_level_irq); - irq_set_status_flags(i, IRQ_LEVEL); - } - - common_init_isa_dma(); - setup_irq(16+5, &isa_cascade_irqaction); -} - -/* - * PCI Fixup configuration. - * - * There are two 8 bit external summary registers as follows: - * - * Summary @ 0x26: - * Bit Meaning - * 0 Interrupt Line A from slot 0 - * 1 Interrupt Line A from slot 1 - * 2 Interrupt Line B from slot 0 - * 3 Interrupt Line B from slot 1 - * 4 Interrupt Line C from slot 0 - * 5 Interrupt line from the two ISA PICs - * 6 Tulip - * 7 NCR SCSI - * - * Summary @ 0x27 - * Bit Meaning - * 0 Interrupt Line C from slot 1 - * 1 Interrupt Line D from slot 0 - * 2 Interrupt Line D from slot 1 - * 3 RAZ - * 4 RAZ - * 5 RAZ - * 6 RAZ - * 7 RAZ - * - * The device to slot mapping looks like: - * - * Slot Device - * 5 NCR SCSI controller - * 6 PCI on board slot 0 - * 7 PCI on board slot 1 - * 8 Intel SIO PCI-ISA bridge chip - * 9 Tulip - DECchip 21040 Ethernet controller - * - * - * This two layered interrupt approach means that we allocate IRQ 16 and - * above for PCI interrupts. The IRQ relates to which bit the interrupt - * comes in on. This makes interrupt processing much easier. - */ - -static int __init -eb64p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[5][5] __initdata = { - /*INT INTA INTB INTC INTD */ - {16+7, 16+7, 16+7, 16+7, 16+7}, /* IdSel 5, slot ?, ?? */ - {16+0, 16+0, 16+2, 16+4, 16+9}, /* IdSel 6, slot ?, ?? */ - {16+1, 16+1, 16+3, 16+8, 16+10}, /* IdSel 7, slot ?, ?? */ - { -1, -1, -1, -1, -1}, /* IdSel 8, SIO */ - {16+6, 16+6, 16+6, 16+6, 16+6}, /* IdSel 9, TULIP */ - }; - const long min_idsel = 5, max_idsel = 9, irqs_per_slot = 5; - return COMMON_TABLE_LOOKUP; -} - - -/* - * The System Vector - */ - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB64P) -struct alpha_machine_vector eb64p_mv __initmv = { - .vector_name = "EB64+", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = apecs_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 32, - .device_interrupt = eb64p_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = eb64p_init_irq, - .init_rtc = common_init_rtc, - .init_pci = common_init_pci, - .kill_arch = NULL, - .pci_map_irq = eb64p_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(eb64p) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EB66) -struct alpha_machine_vector eb66_mv __initmv = { - .vector_name = "EB66", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_LCA_IO, - .machine_check = lca_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 32, - .device_interrupt = eb64p_device_interrupt, - - .init_arch = lca_init_arch, - .init_irq = eb64p_init_irq, - .init_rtc = common_init_rtc, - .init_pci = common_init_pci, - .pci_map_irq = eb64p_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(eb66) -#endif diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c index 79d69d7f63f8..aea8a54da4bc 100644 --- a/arch/alpha/kernel/sys_eiger.c +++ b/arch/alpha/kernel/sys_eiger.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_eiger.c * @@ -22,8 +23,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pci.h> -#include <asm/pgtable.h> #include <asm/core_tsunami.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> @@ -142,7 +141,7 @@ eiger_init_irq(void) } } -static int __init +static int eiger_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { u8 irq_orig; @@ -159,7 +158,7 @@ eiger_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return irq_orig - 0x80; } -static u8 __init +static u8 eiger_swizzle(struct pci_dev *dev, u8 *pinp) { struct pci_controller *hose = dev->sysdata; @@ -176,7 +175,7 @@ eiger_swizzle(struct pci_dev *dev, u8 *pinp) case 0x03: bridge_count = 2; break; /* 2 */ case 0x07: bridge_count = 3; break; /* 3 */ case 0x0f: bridge_count = 4; break; /* 4 */ - }; + } slot = PCI_SLOT(dev->devfn); while (dev->bus->self) { diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c deleted file mode 100644 index 5a0af11b3a61..000000000000 --- a/arch/alpha/kernel/sys_jensen.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * linux/arch/alpha/kernel/sys_jensen.c - * - * Copyright (C) 1995 Linus Torvalds - * Copyright (C) 1998, 1999 Richard Henderson - * - * Code supporting the Jensen. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> - -#include <asm/ptrace.h> - -#define __EXTERN_INLINE inline -#include <asm/io.h> -#include <asm/jensen.h> -#undef __EXTERN_INLINE - -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/mmu_context.h> -#include <asm/pgtable.h> -#include <asm/tlbflush.h> - -#include "proto.h" -#include "irq_impl.h" -#include "pci_impl.h" -#include "machvec_impl.h" - - -/* - * Jensen is special: the vector is 0x8X0 for EISA interrupt X, and - * 0x9X0 for the local motherboard interrupts. - * - * Note especially that those local interrupts CANNOT be masked, - * which causes much of the pain below... - * - * 0x660 - NMI - * - * 0x800 - IRQ0 interval timer (not used, as we use the RTC timer) - * 0x810 - IRQ1 line printer (duh..) - * 0x860 - IRQ6 floppy disk - * - * 0x900 - COM1 - * 0x920 - COM2 - * 0x980 - keyboard - * 0x990 - mouse - * - * PCI-based systems are more sane: they don't have the local - * interrupts at all, and have only normal PCI interrupts from - * devices. Happily it's easy enough to do a sane mapping from the - * Jensen. - * - * Note that this means that we may have to do a hardware - * "local_op" to a different interrupt than we report to the rest of the - * world. - */ - -static void -jensen_local_enable(struct irq_data *d) -{ - /* the parport is really hw IRQ 1, silly Jensen. */ - if (d->irq == 7) - i8259a_enable_irq(d); -} - -static void -jensen_local_disable(struct irq_data *d) -{ - /* the parport is really hw IRQ 1, silly Jensen. */ - if (d->irq == 7) - i8259a_disable_irq(d); -} - -static void -jensen_local_mask_ack(struct irq_data *d) -{ - /* the parport is really hw IRQ 1, silly Jensen. */ - if (d->irq == 7) - i8259a_mask_and_ack_irq(d); -} - -static struct irq_chip jensen_local_irq_type = { - .name = "LOCAL", - .irq_unmask = jensen_local_enable, - .irq_mask = jensen_local_disable, - .irq_mask_ack = jensen_local_mask_ack, -}; - -static void -jensen_device_interrupt(unsigned long vector) -{ - int irq; - - switch (vector) { - case 0x660: - printk("Whee.. NMI received. Probable hardware error\n"); - printk("61=%02x, 461=%02x\n", inb(0x61), inb(0x461)); - return; - - /* local device interrupts: */ - case 0x900: irq = 4; break; /* com1 -> irq 4 */ - case 0x920: irq = 3; break; /* com2 -> irq 3 */ - case 0x980: irq = 1; break; /* kbd -> irq 1 */ - case 0x990: irq = 9; break; /* mouse -> irq 9 */ - - default: - if (vector > 0x900) { - printk("Unknown local interrupt %lx\n", vector); - return; - } - - irq = (vector - 0x800) >> 4; - if (irq == 1) - irq = 7; - break; - } - - /* If there is no handler yet... */ - if (!irq_has_action(irq)) { - /* If it is a local interrupt that cannot be masked... */ - if (vector >= 0x900) - { - /* Clear keyboard/mouse state */ - inb(0x64); - inb(0x60); - /* Reset serial ports */ - inb(0x3fa); - inb(0x2fa); - outb(0x0c, 0x3fc); - outb(0x0c, 0x2fc); - /* Clear NMI */ - outb(0,0x61); - outb(0,0x461); - } - } - -#if 0 - /* A useful bit of code to find out if an interrupt is going wild. */ - { - static unsigned int last_msg = 0, last_cc = 0; - static int last_irq = -1, count = 0; - unsigned int cc; - - __asm __volatile("rpcc %0" : "=r"(cc)); - ++count; -#define JENSEN_CYCLES_PER_SEC (150000000) - if (cc - last_msg > ((JENSEN_CYCLES_PER_SEC) * 3) || - irq != last_irq) { - printk(KERN_CRIT " irq %d count %d cc %u @ %lx\n", - irq, count, cc-last_cc, get_irq_regs()->pc); - count = 0; - last_msg = cc; - last_irq = irq; - } - last_cc = cc; - } -#endif - - handle_irq(irq); -} - -static void __init -jensen_init_irq(void) -{ - init_i8259a_irqs(); - - irq_set_chip_and_handler(1, &jensen_local_irq_type, handle_level_irq); - irq_set_chip_and_handler(4, &jensen_local_irq_type, handle_level_irq); - irq_set_chip_and_handler(3, &jensen_local_irq_type, handle_level_irq); - irq_set_chip_and_handler(7, &jensen_local_irq_type, handle_level_irq); - irq_set_chip_and_handler(9, &jensen_local_irq_type, handle_level_irq); - - common_init_isa_dma(); -} - -static void __init -jensen_init_arch(void) -{ - struct pci_controller *hose; -#ifdef CONFIG_PCI - static struct pci_dev fake_isa_bridge = { .dma_mask = 0xffffffffUL, }; - - isa_bridge = &fake_isa_bridge; -#endif - - /* Create a hose so that we can report i/o base addresses to - userland. */ - - pci_isa_hose = hose = alloc_pci_controller(); - hose->io_space = &ioport_resource; - hose->mem_space = &iomem_resource; - hose->index = 0; - - hose->sparse_mem_base = EISA_MEM - IDENT_ADDR; - hose->dense_mem_base = 0; - hose->sparse_io_base = EISA_IO - IDENT_ADDR; - hose->dense_io_base = 0; - - hose->sg_isa = hose->sg_pci = NULL; - __direct_map_base = 0; - __direct_map_size = 0xffffffff; -} - -static void -jensen_machine_check(unsigned long vector, unsigned long la) -{ - printk(KERN_CRIT "Machine check\n"); -} - -/* - * The System Vector - */ - -struct alpha_machine_vector jensen_mv __initmv = { - .vector_name = "Jensen", - DO_EV4_MMU, - IO_LITE(JENSEN,jensen), - .machine_check = jensen_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .rtc_port = 0x170, - .rtc_get_time = common_get_rtc_time, - .rtc_set_time = common_set_rtc_time, - - .nr_irqs = 16, - .device_interrupt = jensen_device_interrupt, - - .init_arch = jensen_init_arch, - .init_irq = jensen_init_irq, - .init_rtc = common_init_rtc, - .init_pci = NULL, - .kill_arch = NULL, -}; -ALIAS_MV(jensen) diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 407accc80877..1f99b03effc2 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_marvel.c * @@ -17,12 +18,10 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_marvel.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> #include <asm/vga.h> -#include <asm/rtc.h> #include "proto.h" #include "err_impl.h" @@ -116,11 +115,11 @@ io7_enable_irq(struct irq_data *d) return; } - spin_lock(&io7->irq_lock); + raw_spin_lock(&io7->irq_lock); *ctl |= 1UL << 24; mb(); *ctl; - spin_unlock(&io7->irq_lock); + raw_spin_unlock(&io7->irq_lock); } static void @@ -137,11 +136,11 @@ io7_disable_irq(struct irq_data *d) return; } - spin_lock(&io7->irq_lock); + raw_spin_lock(&io7->irq_lock); *ctl &= ~(1UL << 24); mb(); *ctl; - spin_unlock(&io7->irq_lock); + raw_spin_unlock(&io7->irq_lock); } static void @@ -264,7 +263,7 @@ init_io7_irqs(struct io7 *io7, */ printk(" Interrupts reported to CPU at PE %u\n", boot_cpuid); - spin_lock(&io7->irq_lock); + raw_spin_lock(&io7->irq_lock); /* set up the error irqs */ io7_redirect_irq(io7, &io7->csrs->HLT_CTL.csr, boot_cpuid); @@ -296,7 +295,7 @@ init_io7_irqs(struct io7 *io7, for (i = 0; i < 16; ++i) init_one_io7_msi(io7, i, boot_cpuid); - spin_unlock(&io7->irq_lock); + raw_spin_unlock(&io7->irq_lock); } static void __init @@ -317,8 +316,9 @@ marvel_init_irq(void) } static int -marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +marvel_map_irq(const struct pci_dev *cdev, u8 slot, u8 pin) { + struct pci_dev *dev = (struct pci_dev *)cdev; struct pci_controller *hose = dev->sysdata; struct io7_port *io7_port = hose->sysdata; struct io7 *io7 = io7_port->io7; @@ -331,7 +331,7 @@ marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin) pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &intline); irq = intline; - msi_loc = pci_find_capability(dev, PCI_CAP_ID_MSI); + msi_loc = dev->msi_cap; msg_ctl = 0; if (msi_loc) pci_read_config_word(dev, msi_loc + PCI_MSI_FLAGS, &msg_ctl); @@ -396,58 +396,7 @@ marvel_init_pci(void) static void __init marvel_init_rtc(void) { - init_rtc_irq(); -} - -struct marvel_rtc_time { - struct rtc_time *time; - int retval; -}; - -#ifdef CONFIG_SMP -static void -smp_get_rtc_time(void *data) -{ - struct marvel_rtc_time *mrt = data; - mrt->retval = __get_rtc_time(mrt->time); -} - -static void -smp_set_rtc_time(void *data) -{ - struct marvel_rtc_time *mrt = data; - mrt->retval = __set_rtc_time(mrt->time); -} -#endif - -static unsigned int -marvel_get_rtc_time(struct rtc_time *time) -{ -#ifdef CONFIG_SMP - struct marvel_rtc_time mrt; - - if (smp_processor_id() != boot_cpuid) { - mrt.time = time; - smp_call_function_single(boot_cpuid, smp_get_rtc_time, &mrt, 1); - return mrt.retval; - } -#endif - return __get_rtc_time(time); -} - -static int -marvel_set_rtc_time(struct rtc_time *time) -{ -#ifdef CONFIG_SMP - struct marvel_rtc_time mrt; - - if (smp_processor_id() != boot_cpuid) { - mrt.time = time; - smp_call_function_single(boot_cpuid, smp_set_rtc_time, &mrt, 1); - return mrt.retval; - } -#endif - return __set_rtc_time(time); + init_rtc_irq(NULL); } static void @@ -491,8 +440,7 @@ struct alpha_machine_vector marvel_ev7_mv __initmv = { .vector_name = "MARVEL/EV7", DO_EV7_MMU, .rtc_port = 0x70, - .rtc_get_time = marvel_get_rtc_time, - .rtc_set_time = marvel_set_rtc_time, + .rtc_boot_cpu_only = 1, DO_MARVEL_IO, .machine_check = marvel_machine_check, .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, @@ -513,10 +461,5 @@ struct alpha_machine_vector marvel_ev7_mv __initmv = { .kill_arch = marvel_kill_arch, .pci_map_irq = marvel_map_irq, .pci_swizzle = common_swizzle, - - .pa_to_nid = marvel_pa_to_nid, - .cpuid_to_nid = marvel_cpuid_to_nid, - .node_mem_start = marvel_node_mem_start, - .node_mem_size = marvel_node_mem_size, }; ALIAS_MV(marvel_ev7) diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c index d5b9776a608d..33b2798de8fc 100644 --- a/arch/alpha/kernel/sys_miata.c +++ b/arch/alpha/kernel/sys_miata.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_miata.c * @@ -21,7 +22,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> @@ -80,8 +80,10 @@ miata_init_irq(void) init_pyxis_irqs(0x63b0000); common_init_isa_dma(); - setup_irq(16+2, &halt_switch_irqaction); /* SRM only? */ - setup_irq(16+6, &timer_cascade_irqaction); + if (request_irq(16 + 2, no_action, 0, "halt-switch", NULL)) + pr_err("Failed to register halt-switch interrupt\n"); + if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL)) + pr_err("Failed to register timer-cascade interrupt\n"); } @@ -149,10 +151,10 @@ miata_init_irq(void) * comes in on. This makes interrupt processing much easier. */ -static int __init +static int miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[18][5] __initdata = { + static char irq_tab[18][5] = { /*INT INTA INTB INTC INTD */ {16+ 8, 16+ 8, 16+ 8, 16+ 8, 16+ 8}, /* IdSel 14, DC21142 */ { -1, -1, -1, -1, -1}, /* IdSel 15, EIDE */ @@ -181,22 +183,23 @@ miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) the 2nd 8259 controller. So we have to check for it first. */ if((slot == 7) && (PCI_FUNC(dev->devfn) == 3)) { - u8 irq=0; struct pci_dev *pdev = pci_get_slot(dev->bus, dev->devfn & ~7); - if(pdev == NULL || pci_read_config_byte(pdev, 0x40,&irq) != PCIBIOS_SUCCESSFUL) { - pci_dev_put(pdev); + u8 irq = 0; + int ret; + + if (!pdev) return -1; - } - else { - pci_dev_put(pdev); - return irq; - } + + ret = pci_read_config_byte(pdev, 0x40, &irq); + pci_dev_put(pdev); + + return ret == PCIBIOS_SUCCESSFUL ? irq : -1; } return COMMON_TABLE_LOOKUP; } -static u8 __init +static u8 miata_swizzle(struct pci_dev *dev, u8 *pinp) { int slot, pin = *pinp; diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c index 5e82dc1ad6f2..557802398231 100644 --- a/arch/alpha/kernel/sys_mikasa.c +++ b/arch/alpha/kernel/sys_mikasa.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_mikasa.c * @@ -22,8 +23,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_apecs.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> @@ -145,10 +144,10 @@ mikasa_init_irq(void) * comes in on. This makes interrupt processing much easier. */ -static int __init +static int mikasa_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[8][5] __initdata = { + static char irq_tab[8][5] = { /*INT INTA INTB INTC INTD */ {16+12, 16+12, 16+12, 16+12, 16+12}, /* IdSel 17, SCSI */ { -1, -1, -1, -1, -1}, /* IdSel 18, PCEB */ @@ -164,64 +163,9 @@ mikasa_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) } -#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO) -static void -mikasa_apecs_machine_check(unsigned long vector, unsigned long la_ptr) -{ -#define MCHK_NO_DEVSEL 0x205U -#define MCHK_NO_TABT 0x204U - - struct el_common *mchk_header; - unsigned int code; - - mchk_header = (struct el_common *)la_ptr; - - /* Clear the error before any reporting. */ - mb(); - mb(); /* magic */ - draina(); - apecs_pci_clr_err(); - wrmces(0x7); - mb(); - - code = mchk_header->code; - process_mcheck_info(vector, la_ptr, "MIKASA APECS", - (mcheck_expected(0) - && (code == MCHK_NO_DEVSEL - || code == MCHK_NO_TABT))); -} -#endif - - /* * The System Vector */ - -#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO) -struct alpha_machine_vector mikasa_mv __initmv = { - .vector_name = "Mikasa", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = mikasa_apecs_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 32, - .device_interrupt = mikasa_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = mikasa_init_irq, - .init_rtc = common_init_rtc, - .init_pci = common_init_pci, - .pci_map_irq = mikasa_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(mikasa) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PRIMO) struct alpha_machine_vector mikasa_primo_mv __initmv = { .vector_name = "Mikasa-Primo", DO_EV5_MMU, @@ -244,4 +188,3 @@ struct alpha_machine_vector mikasa_primo_mv __initmv = { .pci_swizzle = common_swizzle, }; ALIAS_MV(mikasa_primo) -#endif diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index 837c0fa58317..13b79960b4b9 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_nautilus.c * @@ -31,7 +32,7 @@ #include <linux/pci.h> #include <linux/init.h> #include <linux/reboot.h> -#include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/bitops.h> #include <asm/ptrace.h> @@ -39,8 +40,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pci.h> -#include <asm/pgtable.h> #include <asm/core_irongate.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> @@ -63,7 +62,7 @@ nautilus_init_irq(void) common_init_isa_dma(); } -static int __init +static int nautilus_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { /* Preserve the IRQ set up by the console. */ @@ -79,7 +78,7 @@ nautilus_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return irq; } -void +static void nautilus_kill_arch(int mode) { struct pci_bus *bus = pci_isa_hose->bus; @@ -128,7 +127,7 @@ naut_sys_machine_check(unsigned long vector, unsigned long la_ptr, /* Machine checks can come from two sources - those on the CPU and those in the system. They are analysed separately but all starts here. */ -void +static void nautilus_machine_check(unsigned long vector, unsigned long la_ptr) { char *mchk_class; @@ -185,74 +184,87 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr) mb(); } -extern void pcibios_claim_one_bus(struct pci_bus *); - -static struct resource irongate_io = { - .name = "Irongate PCI IO", - .flags = IORESOURCE_IO, -}; static struct resource irongate_mem = { .name = "Irongate PCI MEM", .flags = IORESOURCE_MEM, }; +static struct resource busn_resource = { + .name = "PCI busn", + .start = 0, + .end = 255, + .flags = IORESOURCE_BUS, +}; -void __init +static void __init nautilus_init_pci(void) { struct pci_controller *hose = hose_head; + struct pci_host_bridge *bridge; struct pci_bus *bus; - struct pci_dev *irongate; unsigned long bus_align, bus_size, pci_mem; unsigned long memtop = max_low_pfn << PAGE_SHIFT; + bridge = pci_alloc_host_bridge(0); + if (!bridge) + return; + + /* Use default IO. */ + pci_add_resource(&bridge->windows, &ioport_resource); + /* Irongate PCI memory aperture, calculate required size before + setting it up. */ + pci_add_resource(&bridge->windows, &irongate_mem); + + pci_add_resource(&bridge->windows, &busn_resource); + bridge->dev.parent = NULL; + bridge->sysdata = hose; + bridge->busnr = 0; + bridge->ops = alpha_mv.pci_ops; + bridge->swizzle_irq = alpha_mv.pci_swizzle; + bridge->map_irq = alpha_mv.pci_map_irq; + bridge->size_windows = 1; + /* Scan our single hose. */ - bus = pci_scan_bus(0, alpha_mv.pci_ops, hose); - hose->bus = bus; + if (pci_scan_root_bus_bridge(bridge)) { + pci_free_host_bridge(bridge); + return; + } + bus = hose->bus = bridge->bus; pcibios_claim_one_bus(bus); - irongate = pci_get_bus_and_slot(0, 0); - bus->self = irongate; - bus->resource[0] = &irongate_io; - bus->resource[1] = &irongate_mem; - pci_bus_size_bridges(bus); - /* IO port range. */ - bus->resource[0]->start = 0; - bus->resource[0]->end = 0xffff; - - /* Set up PCI memory range - limit is hardwired to 0xffffffff, - base must be at aligned to 16Mb. */ - bus_align = bus->resource[1]->start; - bus_size = bus->resource[1]->end + 1 - bus_align; + /* Now we've got the size and alignment of PCI memory resources + stored in irongate_mem. Set up the PCI memory range: limit is + hardwired to 0xffffffff, base must be aligned to 16Mb. */ + bus_align = irongate_mem.start; + bus_size = irongate_mem.end + 1 - bus_align; if (bus_align < 0x1000000UL) bus_align = 0x1000000UL; pci_mem = (0x100000000UL - bus_size) & -bus_align; + irongate_mem.start = pci_mem; + irongate_mem.end = 0xffffffffUL; - bus->resource[1]->start = pci_mem; - bus->resource[1]->end = 0xffffffffUL; - if (request_resource(&iomem_resource, bus->resource[1]) < 0) + /* Register our newly calculated PCI memory window in the resource + tree. */ + if (request_resource(&iomem_resource, &irongate_mem) < 0) printk(KERN_ERR "Failed to request MEM on hose 0\n"); + printk(KERN_INFO "Irongate pci_mem %pR\n", &irongate_mem); + if (pci_mem < memtop) memtop = pci_mem; if (memtop > alpha_mv.min_mem_address) { free_reserved_area(__va(alpha_mv.min_mem_address), __va(memtop), -1, NULL); - printk("nautilus_init_pci: %ldk freed\n", + printk(KERN_INFO "nautilus_init_pci: %ldk freed\n", (memtop - alpha_mv.min_mem_address) >> 10); } - if ((IRONGATE0->dev_vendor >> 16) > 0x7006) /* Albacore? */ IRONGATE0->pci_mem = pci_mem; pci_bus_assign_resources(bus); - - /* pci_common_swizzle() relies on bus->self being NULL - for the root bus, so just clear it. */ - bus->self = NULL; - pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq); + pci_bus_add_devices(bus); } /* diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c index 063e594fd969..eed3f16561c0 100644 --- a/arch/alpha/kernel/sys_noritake.c +++ b/arch/alpha/kernel/sys_noritake.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_noritake.c * @@ -23,8 +24,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_apecs.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> @@ -193,10 +192,10 @@ noritake_init_irq(void) * comes in on. This makes interrupt processing much easier. */ -static int __init +static int noritake_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[15][5] __initdata = { + static char irq_tab[15][5] = { /*INT INTA INTB INTC INTD */ /* note: IDSELs 16, 17, and 25 are CORELLE only */ { 16+1, 16+1, 16+1, 16+1, 16+1}, /* IdSel 16, QLOGIC */ @@ -221,7 +220,7 @@ noritake_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return COMMON_TABLE_LOOKUP; } -static u8 __init +static u8 noritake_swizzle(struct pci_dev *dev, u8 *pinp) { int slot, pin = *pinp; @@ -253,64 +252,6 @@ noritake_swizzle(struct pci_dev *dev, u8 *pinp) return slot; } -#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO) -static void -noritake_apecs_machine_check(unsigned long vector, unsigned long la_ptr) -{ -#define MCHK_NO_DEVSEL 0x205U -#define MCHK_NO_TABT 0x204U - - struct el_common *mchk_header; - unsigned int code; - - mchk_header = (struct el_common *)la_ptr; - - /* Clear the error before any reporting. */ - mb(); - mb(); /* magic */ - draina(); - apecs_pci_clr_err(); - wrmces(0x7); - mb(); - - code = mchk_header->code; - process_mcheck_info(vector, la_ptr, "NORITAKE APECS", - (mcheck_expected(0) - && (code == MCHK_NO_DEVSEL - || code == MCHK_NO_TABT))); -} -#endif - - -/* - * The System Vectors - */ - -#if defined(CONFIG_ALPHA_GENERIC) || !defined(CONFIG_ALPHA_PRIMO) -struct alpha_machine_vector noritake_mv __initmv = { - .vector_name = "Noritake", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = noritake_apecs_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = EISA_DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 48, - .device_interrupt = noritake_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = noritake_init_irq, - .init_rtc = common_init_rtc, - .init_pci = common_init_pci, - .pci_map_irq = noritake_map_irq, - .pci_swizzle = noritake_swizzle, -}; -ALIAS_MV(noritake) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_PRIMO) struct alpha_machine_vector noritake_primo_mv __initmv = { .vector_name = "Noritake-Primo", DO_EV5_MMU, @@ -333,4 +274,3 @@ struct alpha_machine_vector noritake_primo_mv __initmv = { .pci_swizzle = noritake_swizzle, }; ALIAS_MV(noritake_primo) -#endif diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c index dfd510ae5d8c..b5846ffdadce 100644 --- a/arch/alpha/kernel/sys_rawhide.c +++ b/arch/alpha/kernel/sys_rawhide.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_rawhide.c * @@ -20,7 +21,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_mcpcia.h> #include <asm/tlbflush.h> @@ -221,10 +221,10 @@ rawhide_init_irq(void) * */ -static int __init +static int rawhide_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[5][5] __initdata = { + static char irq_tab[5][5] = { /*INT INTA INTB INTC INTD */ { 16+16, 16+16, 16+16, 16+16, 16+16}, /* IdSel 1 SCSI PCI 1 */ { 16+ 0, 16+ 0, 16+ 1, 16+ 2, 16+ 3}, /* IdSel 2 slot 2 */ diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c index a3f485257170..4b1c8d85c4f0 100644 --- a/arch/alpha/kernel/sys_ruffian.c +++ b/arch/alpha/kernel/sys_ruffian.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_ruffian.c * @@ -22,7 +23,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> @@ -81,7 +81,8 @@ ruffian_init_rtc(void) outb(0x31, 0x42); outb(0x13, 0x42); - setup_irq(0, &timer_irqaction); + if (request_irq(0, rtc_timer_interrupt, 0, "timer", NULL)) + pr_err("Failed to request irq 0 (timer)\n"); } static void @@ -117,10 +118,10 @@ ruffian_kill_arch (int mode) * */ -static int __init +static int ruffian_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[11][5] __initdata = { + static char irq_tab[11][5] = { /*INT INTA INTB INTC INTD */ {-1, -1, -1, -1, -1}, /* IdSel 13, 21052 */ {-1, -1, -1, -1, -1}, /* IdSel 14, SIO */ @@ -139,7 +140,7 @@ ruffian_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return COMMON_TABLE_LOOKUP; } -static u8 __init +static u8 ruffian_swizzle(struct pci_dev *dev, u8 *pinp) { int slot, pin = *pinp; diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c index 08ee737d4fba..94046f9aea08 100644 --- a/arch/alpha/kernel/sys_rx164.c +++ b/arch/alpha/kernel/sys_rx164.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_rx164.c * @@ -21,7 +22,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_polaris.h> #include <asm/tlbflush.h> @@ -105,7 +105,8 @@ rx164_init_irq(void) init_i8259a_irqs(); common_init_isa_dma(); - setup_irq(16+20, &isa_cascade_irqaction); + if (request_irq(16 + 20, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } @@ -142,7 +143,7 @@ rx164_init_irq(void) * */ -static int __init +static int rx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { #if 0 @@ -156,7 +157,7 @@ rx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { 16+1, 16+1, 16+6, 16+11, 16+16}, /* IdSel 10, slot 4 */ }; #else - static char irq_tab[6][5] __initdata = { + static char irq_tab[6][5] = { /*INT INTA INTB INTC INTD */ { 16+0, 16+0, 16+6, 16+11, 16+16}, /* IdSel 5, slot 0 */ { 16+1, 16+1, 16+7, 16+12, 16+17}, /* IdSel 6, slot 1 */ diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c index 8a0aa6d67b53..49f5c75134ec 100644 --- a/arch/alpha/kernel/sys_sable.c +++ b/arch/alpha/kernel/sys_sable.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_sable.c * @@ -20,7 +21,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_t2.h> #include <asm/tlbflush.h> @@ -192,10 +192,10 @@ sable_init_irq(void) * with the values in the irq swizzling tables above. */ -static int __init +static int sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[9][5] __initdata = { + static char irq_tab[9][5] = { /*INT INTA INTB INTC INTD */ { 32+0, 32+0, 32+0, 32+0, 32+0}, /* IdSel 0, TULIP */ { 32+1, 32+1, 32+1, 32+1, 32+1}, /* IdSel 1, SCSI */ @@ -212,232 +212,6 @@ sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) } #endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) */ -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) - -/***********************************************************************/ -/* LYNX hardware specifics - */ -/* - * For LYNX, which is also baroque, we manage 64 IRQs, via a custom IC. - * - * Bit Meaning Kernel IRQ - *------------------------------------------ - * 0 - * 1 - * 2 - * 3 mouse 12 - * 4 - * 5 - * 6 keyboard 1 - * 7 floppy 6 - * 8 COM2 3 - * 9 parallel port 7 - *10 EISA irq 3 - - *11 EISA irq 4 - - *12 EISA irq 5 5 - *13 EISA irq 6 - - *14 EISA irq 7 - - *15 COM1 4 - *16 EISA irq 9 9 - *17 EISA irq 10 10 - *18 EISA irq 11 11 - *19 EISA irq 12 - - *20 - *21 EISA irq 14 14 - *22 EISA irq 15 15 - *23 IIC - - *24 VGA (builtin) - - *25 - *26 - *27 - *28 NCR810 (builtin) 28 - *29 - *30 - *31 - *32 PCI 0 slot 4 A primary bus 32 - *33 PCI 0 slot 4 B primary bus 33 - *34 PCI 0 slot 4 C primary bus 34 - *35 PCI 0 slot 4 D primary bus - *36 PCI 0 slot 5 A primary bus - *37 PCI 0 slot 5 B primary bus - *38 PCI 0 slot 5 C primary bus - *39 PCI 0 slot 5 D primary bus - *40 PCI 0 slot 6 A primary bus - *41 PCI 0 slot 6 B primary bus - *42 PCI 0 slot 6 C primary bus - *43 PCI 0 slot 6 D primary bus - *44 PCI 0 slot 7 A primary bus - *45 PCI 0 slot 7 B primary bus - *46 PCI 0 slot 7 C primary bus - *47 PCI 0 slot 7 D primary bus - *48 PCI 0 slot 0 A secondary bus - *49 PCI 0 slot 0 B secondary bus - *50 PCI 0 slot 0 C secondary bus - *51 PCI 0 slot 0 D secondary bus - *52 PCI 0 slot 1 A secondary bus - *53 PCI 0 slot 1 B secondary bus - *54 PCI 0 slot 1 C secondary bus - *55 PCI 0 slot 1 D secondary bus - *56 PCI 0 slot 2 A secondary bus - *57 PCI 0 slot 2 B secondary bus - *58 PCI 0 slot 2 C secondary bus - *59 PCI 0 slot 2 D secondary bus - *60 PCI 0 slot 3 A secondary bus - *61 PCI 0 slot 3 B secondary bus - *62 PCI 0 slot 3 C secondary bus - *63 PCI 0 slot 3 D secondary bus - */ - -static void -lynx_update_irq_hw(unsigned long bit, unsigned long mask) -{ - /* - * Write the AIR register on the T3/T4 with the - * address of the IC mask register (offset 0x40) - */ - *(vulp)T2_AIR = 0x40; - mb(); - *(vulp)T2_AIR; /* re-read to force write */ - mb(); - *(vulp)T2_DIR = mask; - mb(); - mb(); -} - -static void -lynx_ack_irq_hw(unsigned long bit) -{ - *(vulp)T2_VAR = (u_long) bit; - mb(); - mb(); -} - -static irq_swizzle_t lynx_irq_swizzle = { - { /* irq_to_mask */ - -1, 6, -1, 8, 15, 12, 7, 9, /* pseudo PIC 0-7 */ - -1, 16, 17, 18, 3, -1, 21, 22, /* pseudo PIC 8-15 */ - -1, -1, -1, -1, -1, -1, -1, -1, /* pseudo */ - -1, -1, -1, -1, 28, -1, -1, -1, /* pseudo */ - 32, 33, 34, 35, 36, 37, 38, 39, /* mask 32-39 */ - 40, 41, 42, 43, 44, 45, 46, 47, /* mask 40-47 */ - 48, 49, 50, 51, 52, 53, 54, 55, /* mask 48-55 */ - 56, 57, 58, 59, 60, 61, 62, 63 /* mask 56-63 */ - }, - { /* mask_to_irq */ - -1, -1, -1, 12, -1, -1, 1, 6, /* mask 0-7 */ - 3, 7, -1, -1, 5, -1, -1, 4, /* mask 8-15 */ - 9, 10, 11, -1, -1, 14, 15, -1, /* mask 16-23 */ - -1, -1, -1, -1, 28, -1, -1, -1, /* mask 24-31 */ - 32, 33, 34, 35, 36, 37, 38, 39, /* mask 32-39 */ - 40, 41, 42, 43, 44, 45, 46, 47, /* mask 40-47 */ - 48, 49, 50, 51, 52, 53, 54, 55, /* mask 48-55 */ - 56, 57, 58, 59, 60, 61, 62, 63 /* mask 56-63 */ - }, - -1, - lynx_update_irq_hw, - lynx_ack_irq_hw -}; - -static void __init -lynx_init_irq(void) -{ - sable_lynx_irq_swizzle = &lynx_irq_swizzle; - sable_lynx_init_irq(64); -} - -/* - * PCI Fixup configuration for ALPHA LYNX (2100A) - * - * The device to slot mapping looks like: - * - * Slot Device - * 0 none - * 1 none - * 2 PCI-EISA bridge - * 3 PCI-PCI bridge - * 4 NCR 810 (Demi-Lynx only) - * 5 none - * 6 PCI on board slot 4 - * 7 PCI on board slot 5 - * 8 PCI on board slot 6 - * 9 PCI on board slot 7 - * - * And behind the PPB we have: - * - * 11 PCI on board slot 0 - * 12 PCI on board slot 1 - * 13 PCI on board slot 2 - * 14 PCI on board slot 3 - */ -/* - * NOTE: the IRQ assignments below are arbitrary, but need to be consistent - * with the values in the irq swizzling tables above. - */ - -static int __init -lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[19][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { -1, -1, -1, -1, -1}, /* IdSel 13, PCEB */ - { -1, -1, -1, -1, -1}, /* IdSel 14, PPB */ - { 28, 28, 28, 28, 28}, /* IdSel 15, NCR demi */ - { -1, -1, -1, -1, -1}, /* IdSel 16, none */ - { 32, 32, 33, 34, 35}, /* IdSel 17, slot 4 */ - { 36, 36, 37, 38, 39}, /* IdSel 18, slot 5 */ - { 40, 40, 41, 42, 43}, /* IdSel 19, slot 6 */ - { 44, 44, 45, 46, 47}, /* IdSel 20, slot 7 */ - { -1, -1, -1, -1, -1}, /* IdSel 22, none */ - /* The following are actually behind the PPB. */ - { -1, -1, -1, -1, -1}, /* IdSel 16 none */ - { 28, 28, 28, 28, 28}, /* IdSel 17 NCR lynx */ - { -1, -1, -1, -1, -1}, /* IdSel 18 none */ - { -1, -1, -1, -1, -1}, /* IdSel 19 none */ - { -1, -1, -1, -1, -1}, /* IdSel 20 none */ - { -1, -1, -1, -1, -1}, /* IdSel 21 none */ - { 48, 48, 49, 50, 51}, /* IdSel 22 slot 0 */ - { 52, 52, 53, 54, 55}, /* IdSel 23 slot 1 */ - { 56, 56, 57, 58, 59}, /* IdSel 24 slot 2 */ - { 60, 60, 61, 62, 63} /* IdSel 25 slot 3 */ - }; - const long min_idsel = 2, max_idsel = 20, irqs_per_slot = 5; - return COMMON_TABLE_LOOKUP; -} - -static u8 __init -lynx_swizzle(struct pci_dev *dev, u8 *pinp) -{ - int slot, pin = *pinp; - - if (dev->bus->number == 0) { - slot = PCI_SLOT(dev->devfn); - } - /* Check for the built-in bridge */ - else if (PCI_SLOT(dev->bus->self->devfn) == 3) { - slot = PCI_SLOT(dev->devfn) + 11; - } - else - { - /* Must be a card-based bridge. */ - do { - if (PCI_SLOT(dev->bus->self->devfn) == 3) { - slot = PCI_SLOT(dev->devfn) + 11; - break; - } - pin = pci_swizzle_interrupt_pin(dev, pin); - - /* Move up the chain of bridges. */ - dev = dev->bus->self; - /* Slot of the next bridge. */ - slot = PCI_SLOT(dev->devfn); - } while (dev->bus->self); - } - *pinp = pin; - return slot; -} - -#endif /* defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) */ - /***********************************************************************/ /* GENERIC irq routines */ @@ -539,40 +313,7 @@ sable_lynx_init_pci(void) * these games with GAMMA_BIAS. */ -#if defined(CONFIG_ALPHA_GENERIC) || \ - (defined(CONFIG_ALPHA_SABLE) && !defined(CONFIG_ALPHA_GAMMA)) -#undef GAMMA_BIAS -#define GAMMA_BIAS 0 -struct alpha_machine_vector sable_mv __initmv = { - .vector_name = "Sable", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_T2_IO, - .machine_check = t2_machine_check, - .max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS, - .min_io_address = EISA_DEFAULT_IO_BASE, - .min_mem_address = T2_DEFAULT_MEM_BASE, - - .nr_irqs = 40, - .device_interrupt = sable_lynx_srm_device_interrupt, - - .init_arch = t2_init_arch, - .init_irq = sable_init_irq, - .init_rtc = common_init_rtc, - .init_pci = sable_lynx_init_pci, - .kill_arch = t2_kill_arch, - .pci_map_irq = sable_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .t2 = { - .gamma_bias = 0 - } } -}; -ALIAS_MV(sable) -#endif /* GENERIC || (SABLE && !GAMMA) */ - -#if defined(CONFIG_ALPHA_GENERIC) || \ - (defined(CONFIG_ALPHA_SABLE) && defined(CONFIG_ALPHA_GAMMA)) +#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) #undef GAMMA_BIAS #define GAMMA_BIAS _GAMMA_BIAS struct alpha_machine_vector sable_gamma_mv __initmv = { @@ -601,35 +342,4 @@ struct alpha_machine_vector sable_gamma_mv __initmv = { } } }; ALIAS_MV(sable_gamma) -#endif /* GENERIC || (SABLE && GAMMA) */ - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_LYNX) -#undef GAMMA_BIAS -#define GAMMA_BIAS _GAMMA_BIAS -struct alpha_machine_vector lynx_mv __initmv = { - .vector_name = "Lynx", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_T2_IO, - .machine_check = t2_machine_check, - .max_isa_dma_address = ALPHA_SABLE_MAX_ISA_DMA_ADDRESS, - .min_io_address = EISA_DEFAULT_IO_BASE, - .min_mem_address = T2_DEFAULT_MEM_BASE, - - .nr_irqs = 64, - .device_interrupt = sable_lynx_srm_device_interrupt, - - .init_arch = t2_init_arch, - .init_irq = lynx_init_irq, - .init_rtc = common_init_rtc, - .init_pci = sable_lynx_init_pci, - .kill_arch = t2_kill_arch, - .pci_map_irq = lynx_map_irq, - .pci_swizzle = lynx_swizzle, - - .sys = { .t2 = { - .gamma_bias = _GAMMA_BIAS - } } -}; -ALIAS_MV(lynx) -#endif /* GENERIC || LYNX */ +#endif /* GENERIC || SABLE */ diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c deleted file mode 100644 index febd24eba7a6..000000000000 --- a/arch/alpha/kernel/sys_sio.c +++ /dev/null @@ -1,461 +0,0 @@ -/* - * linux/arch/alpha/kernel/sys_sio.c - * - * Copyright (C) 1995 David A Rusling - * Copyright (C) 1996 Jay A Estabrook - * Copyright (C) 1998, 1999 Richard Henderson - * - * Code for all boards that route the PCI interrupts through the SIO - * PCI/ISA bridge. This includes Noname (AXPpci33), Multia (UDB), - * Kenetics's Platform 2000, Avanti (AlphaStation), XL, and AlphaBook1. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/screen_info.h> - -#include <asm/compiler.h> -#include <asm/ptrace.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/mmu_context.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_apecs.h> -#include <asm/core_lca.h> -#include <asm/tlbflush.h> - -#include "proto.h" -#include "irq_impl.h" -#include "pci_impl.h" -#include "machvec_impl.h" -#include "pc873xx.h" - -#if defined(ALPHA_RESTORE_SRM_SETUP) -/* Save LCA configuration data as the console had it set up. */ -struct -{ - unsigned int orig_route_tab; /* for SAVE/RESTORE */ -} saved_config __attribute((common)); -#endif - - -static void __init -sio_init_irq(void) -{ - if (alpha_using_srm) - alpha_mv.device_interrupt = srm_device_interrupt; - - init_i8259a_irqs(); - common_init_isa_dma(); -} - -static inline void __init -alphabook1_init_arch(void) -{ - /* The AlphaBook1 has LCD video fixed at 800x600, - 37 rows and 100 cols. */ - screen_info.orig_y = 37; - screen_info.orig_video_cols = 100; - screen_info.orig_video_lines = 37; - - lca_init_arch(); -} - - -/* - * sio_route_tab selects irq routing in PCI/ISA bridge so that: - * PIRQ0 -> irq 15 - * PIRQ1 -> irq 9 - * PIRQ2 -> irq 10 - * PIRQ3 -> irq 11 - * - * This probably ought to be configurable via MILO. For - * example, sound boards seem to like using IRQ 9. - * - * This is NOT how we should do it. PIRQ0-X should have - * their own IRQs, the way intel uses the IO-APIC IRQs. - */ - -static void __init -sio_pci_route(void) -{ - unsigned int orig_route_tab; - - /* First, ALWAYS read and print the original setting. */ - pci_bus_read_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60, - &orig_route_tab); - printk("%s: PIRQ original 0x%x new 0x%x\n", __func__, - orig_route_tab, alpha_mv.sys.sio.route_tab); - -#if defined(ALPHA_RESTORE_SRM_SETUP) - saved_config.orig_route_tab = orig_route_tab; -#endif - - /* Now override with desired setting. */ - pci_bus_write_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60, - alpha_mv.sys.sio.route_tab); -} - -static unsigned int __init -sio_collect_irq_levels(void) -{ - unsigned int level_bits = 0; - struct pci_dev *dev = NULL; - - /* Iterate through the devices, collecting IRQ levels. */ - for_each_pci_dev(dev) { - if ((dev->class >> 16 == PCI_BASE_CLASS_BRIDGE) && - (dev->class >> 8 != PCI_CLASS_BRIDGE_PCMCIA)) - continue; - - if (dev->irq) - level_bits |= (1 << dev->irq); - } - return level_bits; -} - -static void __init -sio_fixup_irq_levels(unsigned int level_bits) -{ - unsigned int old_level_bits; - - /* - * Now, make all PCI interrupts level sensitive. Notice: - * these registers must be accessed byte-wise. inw()/outw() - * don't work. - * - * Make sure to turn off any level bits set for IRQs 9,10,11,15, - * so that the only bits getting set are for devices actually found. - * Note that we do preserve the remainder of the bits, which we hope - * will be set correctly by ARC/SRM. - * - * Note: we at least preserve any level-set bits on AlphaBook1 - */ - old_level_bits = inb(0x4d0) | (inb(0x4d1) << 8); - - level_bits |= (old_level_bits & 0x71ff); - - outb((level_bits >> 0) & 0xff, 0x4d0); - outb((level_bits >> 8) & 0xff, 0x4d1); -} - -static inline int __init -noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - /* - * The Noname board has 5 PCI slots with each of the 4 - * interrupt pins routed to different pins on the PCI/ISA - * bridge (PIRQ0-PIRQ3). The table below is based on - * information available at: - * - * http://ftp.digital.com/pub/DEC/axppci/ref_interrupts.txt - * - * I have no information on the Avanti interrupt routing, but - * the routing seems to be identical to the Noname except - * that the Avanti has an additional slot whose routing I'm - * unsure of. - * - * pirq_tab[0] is a fake entry to deal with old PCI boards - * that have the interrupt pin number hardwired to 0 (meaning - * that they use the default INTA line, if they are interrupt - * driven at all). - */ - static char irq_tab[][5] __initdata = { - /*INT A B C D */ - { 3, 3, 3, 3, 3}, /* idsel 6 (53c810) */ - {-1, -1, -1, -1, -1}, /* idsel 7 (SIO: PCI/ISA bridge) */ - { 2, 2, -1, -1, -1}, /* idsel 8 (Hack: slot closest ISA) */ - {-1, -1, -1, -1, -1}, /* idsel 9 (unused) */ - {-1, -1, -1, -1, -1}, /* idsel 10 (unused) */ - { 0, 0, 2, 1, 0}, /* idsel 11 KN25_PCI_SLOT0 */ - { 1, 1, 0, 2, 1}, /* idsel 12 KN25_PCI_SLOT1 */ - { 2, 2, 1, 0, 2}, /* idsel 13 KN25_PCI_SLOT2 */ - { 0, 0, 0, 0, 0}, /* idsel 14 AS255 TULIP */ - }; - const long min_idsel = 6, max_idsel = 14, irqs_per_slot = 5; - int irq = COMMON_TABLE_LOOKUP, tmp; - tmp = __kernel_extbl(alpha_mv.sys.sio.route_tab, irq); - return irq >= 0 ? tmp : -1; -} - -static inline int __init -p2k_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[][5] __initdata = { - /*INT A B C D */ - { 0, 0, -1, -1, -1}, /* idsel 6 (53c810) */ - {-1, -1, -1, -1, -1}, /* idsel 7 (SIO: PCI/ISA bridge) */ - { 1, 1, 2, 3, 0}, /* idsel 8 (slot A) */ - { 2, 2, 3, 0, 1}, /* idsel 9 (slot B) */ - {-1, -1, -1, -1, -1}, /* idsel 10 (unused) */ - {-1, -1, -1, -1, -1}, /* idsel 11 (unused) */ - { 3, 3, -1, -1, -1}, /* idsel 12 (CMD0646) */ - }; - const long min_idsel = 6, max_idsel = 12, irqs_per_slot = 5; - int irq = COMMON_TABLE_LOOKUP, tmp; - tmp = __kernel_extbl(alpha_mv.sys.sio.route_tab, irq); - return irq >= 0 ? tmp : -1; -} - -static inline void __init -noname_init_pci(void) -{ - common_init_pci(); - sio_pci_route(); - sio_fixup_irq_levels(sio_collect_irq_levels()); - - if (pc873xx_probe() == -1) { - printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n"); - } else { - printk(KERN_INFO "Found %s Super IO chip at 0x%x\n", - pc873xx_get_model(), pc873xx_get_base()); - - /* Enabling things in the Super IO chip doesn't actually - * configure and enable things, the legacy drivers still - * need to do the actual configuration and enabling. - * This only unblocks them. - */ - -#if !defined(CONFIG_ALPHA_AVANTI) - /* Don't bother on the Avanti family. - * None of them had on-board IDE. - */ - pc873xx_enable_ide(); -#endif - pc873xx_enable_epp19(); - } -} - -static inline void __init -alphabook1_init_pci(void) -{ - struct pci_dev *dev; - unsigned char orig, config; - - common_init_pci(); - sio_pci_route(); - - /* - * On the AlphaBook1, the PCMCIA chip (Cirrus 6729) - * is sensitive to PCI bus bursts, so we must DISABLE - * burst mode for the NCR 8xx SCSI... :-( - * - * Note that the NCR810 SCSI driver must preserve the - * setting of the bit in order for this to work. At the - * moment (2.0.29), ncr53c8xx.c does NOT do this, but - * 53c7,8xx.c DOES. - */ - - dev = NULL; - while ((dev = pci_get_device(PCI_VENDOR_ID_NCR, PCI_ANY_ID, dev))) { - if (dev->device == PCI_DEVICE_ID_NCR_53C810 - || dev->device == PCI_DEVICE_ID_NCR_53C815 - || dev->device == PCI_DEVICE_ID_NCR_53C820 - || dev->device == PCI_DEVICE_ID_NCR_53C825) { - unsigned long io_port; - unsigned char ctest4; - - io_port = dev->resource[0].start; - ctest4 = inb(io_port+0x21); - if (!(ctest4 & 0x80)) { - printk("AlphaBook1 NCR init: setting" - " burst disable\n"); - outb(ctest4 | 0x80, io_port+0x21); - } - } - } - - /* Do not set *ANY* level triggers for AlphaBook1. */ - sio_fixup_irq_levels(0); - - /* Make sure that register PR1 indicates 1Mb mem */ - outb(0x0f, 0x3ce); orig = inb(0x3cf); /* read PR5 */ - outb(0x0f, 0x3ce); outb(0x05, 0x3cf); /* unlock PR0-4 */ - outb(0x0b, 0x3ce); config = inb(0x3cf); /* read PR1 */ - if ((config & 0xc0) != 0xc0) { - printk("AlphaBook1 VGA init: setting 1Mb memory\n"); - config |= 0xc0; - outb(0x0b, 0x3ce); outb(config, 0x3cf); /* write PR1 */ - } - outb(0x0f, 0x3ce); outb(orig, 0x3cf); /* (re)lock PR0-4 */ -} - -void -sio_kill_arch(int mode) -{ -#if defined(ALPHA_RESTORE_SRM_SETUP) - /* Since we cannot read the PCI DMA Window CSRs, we - * cannot restore them here. - * - * However, we CAN read the PIRQ route register, so restore it - * now... - */ - pci_bus_write_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60, - saved_config.orig_route_tab); -#endif -} - - -/* - * The System Vectors - */ - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_BOOK1) -struct alpha_machine_vector alphabook1_mv __initmv = { - .vector_name = "AlphaBook1", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_LCA_IO, - .machine_check = lca_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 16, - .device_interrupt = isa_device_interrupt, - - .init_arch = alphabook1_init_arch, - .init_irq = sio_init_irq, - .init_rtc = common_init_rtc, - .init_pci = alphabook1_init_pci, - .kill_arch = sio_kill_arch, - .pci_map_irq = noname_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .sio = { - /* NCR810 SCSI is 14, PCMCIA controller is 15. */ - .route_tab = 0x0e0f0a0a, - }} -}; -ALIAS_MV(alphabook1) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_AVANTI) -struct alpha_machine_vector avanti_mv __initmv = { - .vector_name = "Avanti", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = apecs_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 16, - .device_interrupt = isa_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = sio_init_irq, - .init_rtc = common_init_rtc, - .init_pci = noname_init_pci, - .kill_arch = sio_kill_arch, - .pci_map_irq = noname_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .sio = { - .route_tab = 0x0b0a050f, /* leave 14 for IDE, 9 for SND */ - }} -}; -ALIAS_MV(avanti) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_NONAME) -struct alpha_machine_vector noname_mv __initmv = { - .vector_name = "Noname", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_LCA_IO, - .machine_check = lca_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 16, - .device_interrupt = srm_device_interrupt, - - .init_arch = lca_init_arch, - .init_irq = sio_init_irq, - .init_rtc = common_init_rtc, - .init_pci = noname_init_pci, - .kill_arch = sio_kill_arch, - .pci_map_irq = noname_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .sio = { - /* For UDB, the only available PCI slot must not map to IRQ 9, - since that's the builtin MSS sound chip. That PCI slot - will map to PIRQ1 (for INTA at least), so we give it IRQ 15 - instead. - - Unfortunately we have to do this for NONAME as well, since - they are co-indicated when the platform type "Noname" is - selected... :-( */ - - .route_tab = 0x0b0a0f0d, - }} -}; -ALIAS_MV(noname) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_P2K) -struct alpha_machine_vector p2k_mv __initmv = { - .vector_name = "Platform2000", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_LCA_IO, - .machine_check = lca_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = APECS_AND_LCA_DEFAULT_MEM_BASE, - - .nr_irqs = 16, - .device_interrupt = srm_device_interrupt, - - .init_arch = lca_init_arch, - .init_irq = sio_init_irq, - .init_rtc = common_init_rtc, - .init_pci = noname_init_pci, - .kill_arch = sio_kill_arch, - .pci_map_irq = p2k_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .sio = { - .route_tab = 0x0b0a090f, - }} -}; -ALIAS_MV(p2k) -#endif - -#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_XL) -struct alpha_machine_vector xl_mv __initmv = { - .vector_name = "XL", - DO_EV4_MMU, - DO_DEFAULT_RTC, - DO_APECS_IO, - .machine_check = apecs_machine_check, - .max_isa_dma_address = ALPHA_XL_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = XL_DEFAULT_MEM_BASE, - - .nr_irqs = 16, - .device_interrupt = isa_device_interrupt, - - .init_arch = apecs_init_arch, - .init_irq = sio_init_irq, - .init_rtc = common_init_rtc, - .init_pci = noname_init_pci, - .kill_arch = sio_kill_arch, - .pci_map_irq = noname_map_irq, - .pci_swizzle = common_swizzle, - - .sys = { .sio = { - .route_tab = 0x0b0a090f, - }} -}; -ALIAS_MV(xl) -#endif diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c index d063b360efed..dd9de84b630c 100644 --- a/arch/alpha/kernel/sys_sx164.c +++ b/arch/alpha/kernel/sys_sx164.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_sx164.c * @@ -21,7 +22,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_cia.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> @@ -53,7 +53,8 @@ sx164_init_irq(void) else init_pyxis_irqs(0xff00003f0000UL); - setup_irq(16+6, &timer_cascade_irqaction); + if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL)) + pr_err("Failed to register timer-cascade interrupt\n"); } /* @@ -94,10 +95,10 @@ sx164_init_irq(void) * 9 32 bit PCI option slot 3 */ -static int __init +static int sx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[5][5] __initdata = { + static char irq_tab[5][5] = { /*INT INTA INTB INTC INTD */ { 16+ 9, 16+ 9, 16+13, 16+17, 16+21}, /* IdSel 5 slot 2 J17 */ { 16+11, 16+11, 16+15, 16+19, 16+23}, /* IdSel 6 slot 0 J19 */ diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c index dd0f1eae3c68..9e2adb69bc74 100644 --- a/arch/alpha/kernel/sys_takara.c +++ b/arch/alpha/kernel/sys_takara.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_takara.c * @@ -20,7 +21,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> @@ -155,10 +155,10 @@ takara_init_irq(void) * assign it whatever the hell IRQ we like and it doesn't matter. */ -static int __init +static int takara_map_irq_srm(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[15][5] __initdata = { + static char irq_tab[15][5] = { { 16+3, 16+3, 16+3, 16+3, 16+3}, /* slot 6 == device 3 */ { 16+2, 16+2, 16+2, 16+2, 16+2}, /* slot 7 == device 2 */ { 16+1, 16+1, 16+1, 16+1, 16+1}, /* slot 8 == device 1 */ @@ -210,7 +210,7 @@ takara_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) return COMMON_TABLE_LOOKUP; } -static u8 __init +static u8 takara_swizzle(struct pci_dev *dev, u8 *pinp) { int slot = PCI_SLOT(dev->devfn); diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c index a53cf03f49d5..b1f3b4fcf99b 100644 --- a/arch/alpha/kernel/sys_titan.c +++ b/arch/alpha/kernel/sys_titan.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_titan.c * @@ -25,7 +26,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_titan.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c index ee1874887776..3cee05443f07 100644 --- a/arch/alpha/kernel/sys_wildfire.c +++ b/arch/alpha/kernel/sys_wildfire.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/sys_wildfire.c * @@ -19,7 +20,6 @@ #include <asm/irq.h> #include <asm/mmu_context.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/core_wildfire.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> @@ -155,10 +155,6 @@ static void __init wildfire_init_irq_per_pca(int qbbno, int pcano) { int i, irq_bias; - static struct irqaction isa_enable = { - .handler = no_action, - .name = "isa_enable", - }; irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA) + pcano * WILDFIRE_IRQ_PER_PCA; @@ -197,7 +193,8 @@ wildfire_init_irq_per_pca(int qbbno, int pcano) irq_set_status_flags(i + irq_bias, IRQ_LEVEL); } - setup_irq(32+irq_bias, &isa_enable); + if (request_irq(32 + irq_bias, no_action, 0, "isa_enable", NULL)) + pr_err("Failed to register isa_enable interrupt\n"); } static void __init @@ -288,10 +285,10 @@ wildfire_device_interrupt(unsigned long vector) * 7 64 bit PCI 1 option slot 7 */ -static int __init +static int wildfire_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - static char irq_tab[8][5] __initdata = { + static char irq_tab[8][5] = { /*INT INTA INTB INTC INTD */ { -1, -1, -1, -1, -1}, /* IdSel 0 ISA Bridge */ { 36, 36, 36+1, 36+2, 36+3}, /* IdSel 1 SCSI builtin */ @@ -340,10 +337,5 @@ struct alpha_machine_vector wildfire_mv __initmv = { .kill_arch = wildfire_kill_arch, .pci_map_irq = wildfire_map_irq, .pci_swizzle = common_swizzle, - - .pa_to_nid = wildfire_pa_to_nid, - .cpuid_to_nid = wildfire_cpuid_to_nid, - .node_mem_start = wildfire_node_mem_start, - .node_mem_size = wildfire_node_mem_size, }; ALIAS_MV(wildfire) diff --git a/arch/alpha/kernel/syscalls/Makefile b/arch/alpha/kernel/syscalls/Makefile new file mode 100644 index 000000000000..b265e4bc16c2 --- /dev/null +++ b/arch/alpha/kernel/syscalls/Makefile @@ -0,0 +1,32 @@ +# SPDX-License-Identifier: GPL-2.0 +kapi := arch/$(SRCARCH)/include/generated/asm +uapi := arch/$(SRCARCH)/include/generated/uapi/asm + +$(shell mkdir -p $(uapi) $(kapi)) + +syscall := $(src)/syscall.tbl +syshdr := $(srctree)/scripts/syscallhdr.sh +systbl := $(srctree)/scripts/syscalltbl.sh + +quiet_cmd_syshdr = SYSHDR $@ + cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --emit-nr $< $@ + +quiet_cmd_systbl = SYSTBL $@ + cmd_systbl = $(CONFIG_SHELL) $(systbl) $< $@ + +$(uapi)/unistd_32.h: $(syscall) $(syshdr) FORCE + $(call if_changed,syshdr) + +$(kapi)/syscall_table.h: $(syscall) $(systbl) FORCE + $(call if_changed,systbl) + +uapisyshdr-y += unistd_32.h +kapisyshdr-y += syscall_table.h + +uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y)) +kapisyshdr-y := $(addprefix $(kapi)/, $(kapisyshdr-y)) +targets += $(addprefix ../../../../, $(uapisyshdr-y) $(kapisyshdr-y)) + +PHONY += all +all: $(uapisyshdr-y) $(kapisyshdr-y) + @: diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl new file mode 100644 index 000000000000..3fed97478058 --- /dev/null +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -0,0 +1,512 @@ +# SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note +# +# system call numbers and entry vectors for alpha +# +# The format is: +# <number> <abi> <name> <entry point> +# +# The <abi> is always "common" for this file +# +0 common osf_syscall alpha_syscall_zero +1 common exit sys_exit +2 common fork alpha_fork +3 common read sys_read +4 common write sys_write +5 common osf_old_open sys_ni_syscall +6 common close sys_close +7 common osf_wait4 sys_osf_wait4 +8 common osf_old_creat sys_ni_syscall +9 common link sys_link +10 common unlink sys_unlink +11 common osf_execve sys_ni_syscall +12 common chdir sys_chdir +13 common fchdir sys_fchdir +14 common mknod sys_mknod +15 common chmod sys_chmod +16 common chown sys_chown +17 common brk sys_osf_brk +18 common osf_getfsstat sys_ni_syscall +19 common lseek sys_lseek +20 common getxpid sys_getxpid +21 common osf_mount sys_osf_mount +22 common umount2 sys_umount +23 common setuid sys_setuid +24 common getxuid sys_getxuid +25 common exec_with_loader sys_ni_syscall +26 common ptrace sys_ptrace +27 common osf_nrecvmsg sys_ni_syscall +28 common osf_nsendmsg sys_ni_syscall +29 common osf_nrecvfrom sys_ni_syscall +30 common osf_naccept sys_ni_syscall +31 common osf_ngetpeername sys_ni_syscall +32 common osf_ngetsockname sys_ni_syscall +33 common access sys_access +34 common osf_chflags sys_ni_syscall +35 common osf_fchflags sys_ni_syscall +36 common sync sys_sync +37 common kill sys_kill +38 common osf_old_stat sys_ni_syscall +39 common setpgid sys_setpgid +40 common osf_old_lstat sys_ni_syscall +41 common dup sys_dup +42 common pipe sys_alpha_pipe +43 common osf_set_program_attributes sys_osf_set_program_attributes +44 common osf_profil sys_ni_syscall +45 common open sys_open +46 common osf_old_sigaction sys_ni_syscall +47 common getxgid sys_getxgid +48 common osf_sigprocmask sys_osf_sigprocmask +49 common osf_getlogin sys_ni_syscall +50 common osf_setlogin sys_ni_syscall +51 common acct sys_acct +52 common sigpending sys_sigpending +54 common ioctl sys_ioctl +55 common osf_reboot sys_ni_syscall +56 common osf_revoke sys_ni_syscall +57 common symlink sys_symlink +58 common readlink sys_readlink +59 common execve sys_execve +60 common umask sys_umask +61 common chroot sys_chroot +62 common osf_old_fstat sys_ni_syscall +63 common getpgrp sys_getpgrp +64 common getpagesize sys_getpagesize +65 common osf_mremap sys_ni_syscall +66 common vfork alpha_vfork +67 common stat sys_newstat +68 common lstat sys_newlstat +69 common osf_sbrk sys_ni_syscall +70 common osf_sstk sys_ni_syscall +71 common mmap sys_osf_mmap +72 common osf_old_vadvise sys_ni_syscall +73 common munmap sys_munmap +74 common mprotect sys_mprotect +75 common madvise sys_madvise +76 common vhangup sys_vhangup +77 common osf_kmodcall sys_ni_syscall +78 common osf_mincore sys_ni_syscall +79 common getgroups sys_getgroups +80 common setgroups sys_setgroups +81 common osf_old_getpgrp sys_ni_syscall +82 common setpgrp sys_setpgid +83 common osf_setitimer compat_sys_setitimer +84 common osf_old_wait sys_ni_syscall +85 common osf_table sys_ni_syscall +86 common osf_getitimer compat_sys_getitimer +87 common gethostname sys_gethostname +88 common sethostname sys_sethostname +89 common getdtablesize sys_getdtablesize +90 common dup2 sys_dup2 +91 common fstat sys_newfstat +92 common fcntl sys_fcntl +93 common osf_select sys_osf_select +94 common poll sys_poll +95 common fsync sys_fsync +96 common setpriority sys_setpriority +97 common socket sys_socket +98 common connect sys_connect +99 common accept sys_accept +100 common getpriority sys_osf_getpriority +101 common send sys_send +102 common recv sys_recv +103 common sigreturn sys_sigreturn +104 common bind sys_bind +105 common setsockopt sys_setsockopt +106 common listen sys_listen +107 common osf_plock sys_ni_syscall +108 common osf_old_sigvec sys_ni_syscall +109 common osf_old_sigblock sys_ni_syscall +110 common osf_old_sigsetmask sys_ni_syscall +111 common sigsuspend sys_sigsuspend +112 common osf_sigstack sys_osf_sigstack +113 common recvmsg sys_recvmsg +114 common sendmsg sys_sendmsg +115 common osf_old_vtrace sys_ni_syscall +116 common osf_gettimeofday sys_osf_gettimeofday +117 common osf_getrusage sys_osf_getrusage +118 common getsockopt sys_getsockopt +120 common readv sys_readv +121 common writev sys_writev +122 common osf_settimeofday sys_osf_settimeofday +123 common fchown sys_fchown +124 common fchmod sys_fchmod +125 common recvfrom sys_recvfrom +126 common setreuid sys_setreuid +127 common setregid sys_setregid +128 common rename sys_rename +129 common truncate sys_truncate +130 common ftruncate sys_ftruncate +131 common flock sys_flock +132 common setgid sys_setgid +133 common sendto sys_sendto +134 common shutdown sys_shutdown +135 common socketpair sys_socketpair +136 common mkdir sys_mkdir +137 common rmdir sys_rmdir +138 common osf_utimes sys_osf_utimes +139 common osf_old_sigreturn sys_ni_syscall +140 common osf_adjtime sys_ni_syscall +141 common getpeername sys_getpeername +142 common osf_gethostid sys_ni_syscall +143 common osf_sethostid sys_ni_syscall +144 common getrlimit sys_getrlimit +145 common setrlimit sys_setrlimit +146 common osf_old_killpg sys_ni_syscall +147 common setsid sys_setsid +148 common quotactl sys_quotactl +149 common osf_oldquota sys_ni_syscall +150 common getsockname sys_getsockname +153 common osf_pid_block sys_ni_syscall +154 common osf_pid_unblock sys_ni_syscall +156 common sigaction sys_osf_sigaction +157 common osf_sigwaitprim sys_ni_syscall +158 common osf_nfssvc sys_ni_syscall +159 common osf_getdirentries sys_osf_getdirentries +160 common osf_statfs sys_osf_statfs +161 common osf_fstatfs sys_osf_fstatfs +163 common osf_asynch_daemon sys_ni_syscall +164 common osf_getfh sys_ni_syscall +165 common osf_getdomainname sys_osf_getdomainname +166 common setdomainname sys_setdomainname +169 common osf_exportfs sys_ni_syscall +181 common osf_alt_plock sys_ni_syscall +184 common osf_getmnt sys_ni_syscall +187 common osf_alt_sigpending sys_ni_syscall +188 common osf_alt_setsid sys_ni_syscall +199 common osf_swapon sys_swapon +200 common msgctl sys_old_msgctl +201 common msgget sys_msgget +202 common msgrcv sys_msgrcv +203 common msgsnd sys_msgsnd +204 common semctl sys_old_semctl +205 common semget sys_semget +206 common semop sys_semop +207 common osf_utsname sys_osf_utsname +208 common lchown sys_lchown +209 common shmat sys_shmat +210 common shmctl sys_old_shmctl +211 common shmdt sys_shmdt +212 common shmget sys_shmget +213 common osf_mvalid sys_ni_syscall +214 common osf_getaddressconf sys_ni_syscall +215 common osf_msleep sys_ni_syscall +216 common osf_mwakeup sys_ni_syscall +217 common msync sys_msync +218 common osf_signal sys_ni_syscall +219 common osf_utc_gettime sys_ni_syscall +220 common osf_utc_adjtime sys_ni_syscall +222 common osf_security sys_ni_syscall +223 common osf_kloadcall sys_ni_syscall +224 common osf_stat sys_osf_stat +225 common osf_lstat sys_osf_lstat +226 common osf_fstat sys_osf_fstat +227 common osf_statfs64 sys_osf_statfs64 +228 common osf_fstatfs64 sys_osf_fstatfs64 +233 common getpgid sys_getpgid +234 common getsid sys_getsid +235 common sigaltstack sys_sigaltstack +236 common osf_waitid sys_ni_syscall +237 common osf_priocntlset sys_ni_syscall +238 common osf_sigsendset sys_ni_syscall +239 common osf_set_speculative sys_ni_syscall +240 common osf_msfs_syscall sys_ni_syscall +241 common osf_sysinfo sys_osf_sysinfo +242 common osf_uadmin sys_ni_syscall +243 common osf_fuser sys_ni_syscall +244 common osf_proplist_syscall sys_osf_proplist_syscall +245 common osf_ntp_adjtime sys_ni_syscall +246 common osf_ntp_gettime sys_ni_syscall +247 common osf_pathconf sys_ni_syscall +248 common osf_fpathconf sys_ni_syscall +250 common osf_uswitch sys_ni_syscall +251 common osf_usleep_thread sys_osf_usleep_thread +252 common osf_audcntl sys_ni_syscall +253 common osf_audgen sys_ni_syscall +254 common sysfs sys_sysfs +255 common osf_subsys_info sys_ni_syscall +256 common osf_getsysinfo sys_osf_getsysinfo +257 common osf_setsysinfo sys_osf_setsysinfo +258 common osf_afs_syscall sys_ni_syscall +259 common osf_swapctl sys_ni_syscall +260 common osf_memcntl sys_ni_syscall +261 common osf_fdatasync sys_ni_syscall +300 common bdflush sys_ni_syscall +301 common sethae sys_sethae +302 common mount sys_mount +303 common old_adjtimex sys_old_adjtimex +304 common swapoff sys_swapoff +305 common getdents sys_getdents +306 common create_module sys_ni_syscall +307 common init_module sys_init_module +308 common delete_module sys_delete_module +309 common get_kernel_syms sys_ni_syscall +310 common syslog sys_syslog +311 common reboot sys_reboot +312 common clone alpha_clone +313 common uselib sys_uselib +314 common mlock sys_mlock +315 common munlock sys_munlock +316 common mlockall sys_mlockall +317 common munlockall sys_munlockall +318 common sysinfo sys_sysinfo +319 common _sysctl sys_ni_syscall +# 320 was sys_idle +321 common oldumount sys_oldumount +322 common swapon sys_swapon +323 common times sys_times +324 common personality sys_personality +325 common setfsuid sys_setfsuid +326 common setfsgid sys_setfsgid +327 common ustat sys_ustat +328 common statfs sys_statfs +329 common fstatfs sys_fstatfs +330 common sched_setparam sys_sched_setparam +331 common sched_getparam sys_sched_getparam +332 common sched_setscheduler sys_sched_setscheduler +333 common sched_getscheduler sys_sched_getscheduler +334 common sched_yield sys_sched_yield +335 common sched_get_priority_max sys_sched_get_priority_max +336 common sched_get_priority_min sys_sched_get_priority_min +337 common sched_rr_get_interval sys_sched_rr_get_interval +338 common afs_syscall sys_ni_syscall +339 common uname sys_newuname +340 common nanosleep sys_nanosleep +341 common mremap sys_mremap +342 common nfsservctl sys_ni_syscall +343 common setresuid sys_setresuid +344 common getresuid sys_getresuid +345 common pciconfig_read sys_pciconfig_read +346 common pciconfig_write sys_pciconfig_write +347 common query_module sys_ni_syscall +348 common prctl sys_prctl +349 common pread64 sys_pread64 +350 common pwrite64 sys_pwrite64 +351 common rt_sigreturn sys_rt_sigreturn +352 common rt_sigaction sys_rt_sigaction +353 common rt_sigprocmask sys_rt_sigprocmask +354 common rt_sigpending sys_rt_sigpending +355 common rt_sigtimedwait sys_rt_sigtimedwait +356 common rt_sigqueueinfo sys_rt_sigqueueinfo +357 common rt_sigsuspend sys_rt_sigsuspend +358 common select sys_select +359 common gettimeofday sys_gettimeofday +360 common settimeofday sys_settimeofday +361 common getitimer sys_getitimer +362 common setitimer sys_setitimer +363 common utimes sys_utimes +364 common getrusage sys_getrusage +365 common wait4 sys_wait4 +366 common adjtimex sys_adjtimex +367 common getcwd sys_getcwd +368 common capget sys_capget +369 common capset sys_capset +370 common sendfile sys_sendfile64 +371 common setresgid sys_setresgid +372 common getresgid sys_getresgid +373 common dipc sys_ni_syscall +374 common pivot_root sys_pivot_root +375 common mincore sys_mincore +376 common pciconfig_iobase sys_pciconfig_iobase +377 common getdents64 sys_getdents64 +378 common gettid sys_gettid +379 common readahead sys_readahead +# 380 is unused +381 common tkill sys_tkill +382 common setxattr sys_setxattr +383 common lsetxattr sys_lsetxattr +384 common fsetxattr sys_fsetxattr +385 common getxattr sys_getxattr +386 common lgetxattr sys_lgetxattr +387 common fgetxattr sys_fgetxattr +388 common listxattr sys_listxattr +389 common llistxattr sys_llistxattr +390 common flistxattr sys_flistxattr +391 common removexattr sys_removexattr +392 common lremovexattr sys_lremovexattr +393 common fremovexattr sys_fremovexattr +394 common futex sys_futex +395 common sched_setaffinity sys_sched_setaffinity +396 common sched_getaffinity sys_sched_getaffinity +397 common tuxcall sys_ni_syscall +398 common io_setup sys_io_setup +399 common io_destroy sys_io_destroy +400 common io_getevents sys_io_getevents +401 common io_submit sys_io_submit +402 common io_cancel sys_io_cancel +405 common exit_group sys_exit_group +406 common lookup_dcookie sys_ni_syscall +407 common epoll_create sys_epoll_create +408 common epoll_ctl sys_epoll_ctl +409 common epoll_wait sys_epoll_wait +410 common remap_file_pages sys_remap_file_pages +411 common set_tid_address sys_set_tid_address +412 common restart_syscall sys_restart_syscall +413 common fadvise64 sys_fadvise64 +414 common timer_create sys_timer_create +415 common timer_settime sys_timer_settime +416 common timer_gettime sys_timer_gettime +417 common timer_getoverrun sys_timer_getoverrun +418 common timer_delete sys_timer_delete +419 common clock_settime sys_clock_settime +420 common clock_gettime sys_clock_gettime +421 common clock_getres sys_clock_getres +422 common clock_nanosleep sys_clock_nanosleep +423 common semtimedop sys_semtimedop +424 common tgkill sys_tgkill +425 common stat64 sys_stat64 +426 common lstat64 sys_lstat64 +427 common fstat64 sys_fstat64 +428 common vserver sys_ni_syscall +429 common mbind sys_ni_syscall +430 common get_mempolicy sys_ni_syscall +431 common set_mempolicy sys_ni_syscall +432 common mq_open sys_mq_open +433 common mq_unlink sys_mq_unlink +434 common mq_timedsend sys_mq_timedsend +435 common mq_timedreceive sys_mq_timedreceive +436 common mq_notify sys_mq_notify +437 common mq_getsetattr sys_mq_getsetattr +438 common waitid sys_waitid +439 common add_key sys_add_key +440 common request_key sys_request_key +441 common keyctl sys_keyctl +442 common ioprio_set sys_ioprio_set +443 common ioprio_get sys_ioprio_get +444 common inotify_init sys_inotify_init +445 common inotify_add_watch sys_inotify_add_watch +446 common inotify_rm_watch sys_inotify_rm_watch +447 common fdatasync sys_fdatasync +448 common kexec_load sys_kexec_load +449 common migrate_pages sys_migrate_pages +450 common openat sys_openat +451 common mkdirat sys_mkdirat +452 common mknodat sys_mknodat +453 common fchownat sys_fchownat +454 common futimesat sys_futimesat +455 common fstatat64 sys_fstatat64 +456 common unlinkat sys_unlinkat +457 common renameat sys_renameat +458 common linkat sys_linkat +459 common symlinkat sys_symlinkat +460 common readlinkat sys_readlinkat +461 common fchmodat sys_fchmodat +462 common faccessat sys_faccessat +463 common pselect6 sys_pselect6 +464 common ppoll sys_ppoll +465 common unshare sys_unshare +466 common set_robust_list sys_set_robust_list +467 common get_robust_list sys_get_robust_list +468 common splice sys_splice +469 common sync_file_range sys_sync_file_range +470 common tee sys_tee +471 common vmsplice sys_vmsplice +472 common move_pages sys_move_pages +473 common getcpu sys_getcpu +474 common epoll_pwait sys_epoll_pwait +475 common utimensat sys_utimensat +476 common signalfd sys_signalfd +477 common timerfd sys_ni_syscall +478 common eventfd sys_eventfd +479 common recvmmsg sys_recvmmsg +480 common fallocate sys_fallocate +481 common timerfd_create sys_timerfd_create +482 common timerfd_settime sys_timerfd_settime +483 common timerfd_gettime sys_timerfd_gettime +484 common signalfd4 sys_signalfd4 +485 common eventfd2 sys_eventfd2 +486 common epoll_create1 sys_epoll_create1 +487 common dup3 sys_dup3 +488 common pipe2 sys_pipe2 +489 common inotify_init1 sys_inotify_init1 +490 common preadv sys_preadv +491 common pwritev sys_pwritev +492 common rt_tgsigqueueinfo sys_rt_tgsigqueueinfo +493 common perf_event_open sys_perf_event_open +494 common fanotify_init sys_fanotify_init +495 common fanotify_mark sys_fanotify_mark +496 common prlimit64 sys_prlimit64 +497 common name_to_handle_at sys_name_to_handle_at +498 common open_by_handle_at sys_open_by_handle_at +499 common clock_adjtime sys_clock_adjtime +500 common syncfs sys_syncfs +501 common setns sys_setns +502 common accept4 sys_accept4 +503 common sendmmsg sys_sendmmsg +504 common process_vm_readv sys_process_vm_readv +505 common process_vm_writev sys_process_vm_writev +506 common kcmp sys_kcmp +507 common finit_module sys_finit_module +508 common sched_setattr sys_sched_setattr +509 common sched_getattr sys_sched_getattr +510 common renameat2 sys_renameat2 +511 common getrandom sys_getrandom +512 common memfd_create sys_memfd_create +513 common execveat sys_execveat +514 common seccomp sys_seccomp +515 common bpf sys_bpf +516 common userfaultfd sys_userfaultfd +517 common membarrier sys_membarrier +518 common mlock2 sys_mlock2 +519 common copy_file_range sys_copy_file_range +520 common preadv2 sys_preadv2 +521 common pwritev2 sys_pwritev2 +522 common statx sys_statx +523 common io_pgetevents sys_io_pgetevents +524 common pkey_mprotect sys_pkey_mprotect +525 common pkey_alloc sys_pkey_alloc +526 common pkey_free sys_pkey_free +527 common rseq sys_rseq +528 common statfs64 sys_statfs64 +529 common fstatfs64 sys_fstatfs64 +530 common getegid sys_getegid +531 common geteuid sys_geteuid +532 common getppid sys_getppid +# all other architectures have common numbers for new syscall, alpha +# is the exception. +534 common pidfd_send_signal sys_pidfd_send_signal +535 common io_uring_setup sys_io_uring_setup +536 common io_uring_enter sys_io_uring_enter +537 common io_uring_register sys_io_uring_register +538 common open_tree sys_open_tree +539 common move_mount sys_move_mount +540 common fsopen sys_fsopen +541 common fsconfig sys_fsconfig +542 common fsmount sys_fsmount +543 common fspick sys_fspick +544 common pidfd_open sys_pidfd_open +545 common clone3 alpha_clone3 +546 common close_range sys_close_range +547 common openat2 sys_openat2 +548 common pidfd_getfd sys_pidfd_getfd +549 common faccessat2 sys_faccessat2 +550 common process_madvise sys_process_madvise +551 common epoll_pwait2 sys_epoll_pwait2 +552 common mount_setattr sys_mount_setattr +553 common quotactl_fd sys_quotactl_fd +554 common landlock_create_ruleset sys_landlock_create_ruleset +555 common landlock_add_rule sys_landlock_add_rule +556 common landlock_restrict_self sys_landlock_restrict_self +# 557 reserved for memfd_secret +558 common process_mrelease sys_process_mrelease +559 common futex_waitv sys_futex_waitv +560 common set_mempolicy_home_node sys_ni_syscall +561 common cachestat sys_cachestat +562 common fchmodat2 sys_fchmodat2 +563 common map_shadow_stack sys_map_shadow_stack +564 common futex_wake sys_futex_wake +565 common futex_wait sys_futex_wait +566 common futex_requeue sys_futex_requeue +567 common statmount sys_statmount +568 common listmount sys_listmount +569 common lsm_get_self_attr sys_lsm_get_self_attr +570 common lsm_set_self_attr sys_lsm_set_self_attr +571 common lsm_list_modules sys_lsm_list_modules +572 common mseal sys_mseal +573 common setxattrat sys_setxattrat +574 common getxattrat sys_getxattrat +575 common listxattrat sys_listxattrat +576 common removexattrat sys_removexattrat +577 common open_tree_attr sys_open_tree_attr +578 common file_getattr sys_file_getattr +579 common file_setattr sys_file_setattr +580 common listns sys_listns diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index 4284ec798ec9..68f3e4f329eb 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/kernel/systbls.S * @@ -6,529 +7,9 @@ #include <asm/unistd.h> +#define __SYSCALL(nr, entry) .quad entry .data .align 3 .globl sys_call_table sys_call_table: - .quad alpha_ni_syscall /* 0 */ - .quad sys_exit - .quad alpha_fork - .quad sys_read - .quad sys_write - .quad alpha_ni_syscall /* 5 */ - .quad sys_close - .quad sys_osf_wait4 - .quad alpha_ni_syscall - .quad sys_link - .quad sys_unlink /* 10 */ - .quad alpha_ni_syscall - .quad sys_chdir - .quad sys_fchdir - .quad sys_mknod - .quad sys_chmod /* 15 */ - .quad sys_chown - .quad sys_osf_brk - .quad alpha_ni_syscall - .quad sys_lseek - .quad sys_getxpid /* 20 */ - .quad sys_osf_mount - .quad sys_umount - .quad sys_setuid - .quad sys_getxuid - .quad alpha_ni_syscall /* 25 */ - .quad sys_ptrace - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 30 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_access - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 35 */ - .quad sys_sync - .quad sys_kill - .quad alpha_ni_syscall - .quad sys_setpgid - .quad alpha_ni_syscall /* 40 */ - .quad sys_dup - .quad sys_alpha_pipe - .quad sys_osf_set_program_attributes - .quad alpha_ni_syscall - .quad sys_open /* 45 */ - .quad alpha_ni_syscall - .quad sys_getxgid - .quad sys_osf_sigprocmask - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 50 */ - .quad sys_acct - .quad sys_sigpending - .quad alpha_ni_syscall - .quad sys_ioctl - .quad alpha_ni_syscall /* 55 */ - .quad alpha_ni_syscall - .quad sys_symlink - .quad sys_readlink - .quad sys_execve - .quad sys_umask /* 60 */ - .quad sys_chroot - .quad alpha_ni_syscall - .quad sys_getpgrp - .quad sys_getpagesize - .quad alpha_ni_syscall /* 65 */ - .quad alpha_vfork - .quad sys_newstat - .quad sys_newlstat - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 70 */ - .quad sys_osf_mmap - .quad alpha_ni_syscall - .quad sys_munmap - .quad sys_mprotect - .quad sys_madvise /* 75 */ - .quad sys_vhangup - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_getgroups - /* map BSD's setpgrp to sys_setpgid for binary compatibility: */ - .quad sys_setgroups /* 80 */ - .quad alpha_ni_syscall - .quad sys_setpgid - .quad sys_osf_setitimer - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 85 */ - .quad sys_osf_getitimer - .quad sys_gethostname - .quad sys_sethostname - .quad sys_getdtablesize - .quad sys_dup2 /* 90 */ - .quad sys_newfstat - .quad sys_fcntl - .quad sys_osf_select - .quad sys_poll - .quad sys_fsync /* 95 */ - .quad sys_setpriority - .quad sys_socket - .quad sys_connect - .quad sys_accept - .quad sys_osf_getpriority /* 100 */ - .quad sys_send - .quad sys_recv - .quad sys_sigreturn - .quad sys_bind - .quad sys_setsockopt /* 105 */ - .quad sys_listen - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 110 */ - .quad sys_sigsuspend - .quad sys_osf_sigstack - .quad sys_recvmsg - .quad sys_sendmsg - .quad alpha_ni_syscall /* 115 */ - .quad sys_osf_gettimeofday - .quad sys_osf_getrusage - .quad sys_getsockopt - .quad alpha_ni_syscall -#ifdef CONFIG_OSF4_COMPAT - .quad sys_osf_readv /* 120 */ - .quad sys_osf_writev -#else - .quad sys_readv /* 120 */ - .quad sys_writev -#endif - .quad sys_osf_settimeofday - .quad sys_fchown - .quad sys_fchmod - .quad sys_recvfrom /* 125 */ - .quad sys_setreuid - .quad sys_setregid - .quad sys_rename - .quad sys_truncate - .quad sys_ftruncate /* 130 */ - .quad sys_flock - .quad sys_setgid - .quad sys_sendto - .quad sys_shutdown - .quad sys_socketpair /* 135 */ - .quad sys_mkdir - .quad sys_rmdir - .quad sys_osf_utimes - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 140 */ - .quad sys_getpeername - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_getrlimit - .quad sys_setrlimit /* 145 */ - .quad alpha_ni_syscall - .quad sys_setsid - .quad sys_quotactl - .quad alpha_ni_syscall - .quad sys_getsockname /* 150 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 155 */ - .quad sys_osf_sigaction - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_osf_getdirentries - .quad sys_osf_statfs /* 160 */ - .quad sys_osf_fstatfs - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_osf_getdomainname /* 165 */ - .quad sys_setdomainname - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 170 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 175 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 180 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 185 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 190 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 195 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - /* The OSF swapon has two extra arguments, but we ignore them. */ - .quad sys_swapon - .quad sys_msgctl /* 200 */ - .quad sys_msgget - .quad sys_msgrcv - .quad sys_msgsnd - .quad sys_semctl - .quad sys_semget /* 205 */ - .quad sys_semop - .quad sys_osf_utsname - .quad sys_lchown - .quad sys_shmat - .quad sys_shmctl /* 210 */ - .quad sys_shmdt - .quad sys_shmget - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 215 */ - .quad alpha_ni_syscall - .quad sys_msync - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 220 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_osf_stat - .quad sys_osf_lstat /* 225 */ - .quad sys_osf_fstat - .quad sys_osf_statfs64 - .quad sys_osf_fstatfs64 - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 230 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_getpgid - .quad sys_getsid - .quad sys_sigaltstack /* 235 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 240 */ - .quad sys_osf_sysinfo - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_osf_proplist_syscall - .quad alpha_ni_syscall /* 245 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 250 */ - .quad sys_osf_usleep_thread - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad sys_sysfs - .quad alpha_ni_syscall /* 255 */ - .quad sys_osf_getsysinfo - .quad sys_osf_setsysinfo - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 260 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 265 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 270 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 275 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 280 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 285 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 290 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 295 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall -/* linux-specific system calls start at 300 */ - .quad sys_bdflush /* 300 */ - .quad sys_sethae - .quad sys_mount - .quad sys_old_adjtimex - .quad sys_swapoff - .quad sys_getdents /* 305 */ - .quad sys_ni_syscall /* 306: old create_module */ - .quad sys_init_module - .quad sys_delete_module - .quad sys_ni_syscall /* 309: old get_kernel_syms */ - .quad sys_syslog /* 310 */ - .quad sys_reboot - .quad alpha_clone - .quad sys_uselib - .quad sys_mlock - .quad sys_munlock /* 315 */ - .quad sys_mlockall - .quad sys_munlockall - .quad sys_sysinfo - .quad sys_sysctl - .quad sys_ni_syscall /* 320 */ - .quad sys_oldumount - .quad sys_swapon - .quad sys_times - .quad sys_personality - .quad sys_setfsuid /* 325 */ - .quad sys_setfsgid - .quad sys_ustat - .quad sys_statfs - .quad sys_fstatfs - .quad sys_sched_setparam /* 330 */ - .quad sys_sched_getparam - .quad sys_sched_setscheduler - .quad sys_sched_getscheduler - .quad sys_sched_yield - .quad sys_sched_get_priority_max /* 335 */ - .quad sys_sched_get_priority_min - .quad sys_sched_rr_get_interval - .quad sys_ni_syscall /* sys_afs_syscall */ - .quad sys_newuname - .quad sys_nanosleep /* 340 */ - .quad sys_mremap - .quad sys_ni_syscall /* old nfsservctl */ - .quad sys_setresuid - .quad sys_getresuid - .quad sys_pciconfig_read /* 345 */ - .quad sys_pciconfig_write - .quad sys_ni_syscall /* 347: old query_module */ - .quad sys_prctl - .quad sys_pread64 - .quad sys_pwrite64 /* 350 */ - .quad sys_rt_sigreturn - .quad sys_rt_sigaction - .quad sys_rt_sigprocmask - .quad sys_rt_sigpending - .quad sys_rt_sigtimedwait /* 355 */ - .quad sys_rt_sigqueueinfo - .quad sys_rt_sigsuspend - .quad sys_select - .quad sys_gettimeofday - .quad sys_settimeofday /* 360 */ - .quad sys_getitimer - .quad sys_setitimer - .quad sys_utimes - .quad sys_getrusage - .quad sys_wait4 /* 365 */ - .quad sys_adjtimex - .quad sys_getcwd - .quad sys_capget - .quad sys_capset - .quad sys_sendfile64 /* 370 */ - .quad sys_setresgid - .quad sys_getresgid - .quad sys_ni_syscall /* sys_dipc */ - .quad sys_pivot_root - .quad sys_mincore /* 375 */ - .quad sys_pciconfig_iobase - .quad sys_getdents64 - .quad sys_gettid - .quad sys_readahead - .quad sys_ni_syscall /* 380 */ - .quad sys_tkill - .quad sys_setxattr - .quad sys_lsetxattr - .quad sys_fsetxattr - .quad sys_getxattr /* 385 */ - .quad sys_lgetxattr - .quad sys_fgetxattr - .quad sys_listxattr - .quad sys_llistxattr - .quad sys_flistxattr /* 390 */ - .quad sys_removexattr - .quad sys_lremovexattr - .quad sys_fremovexattr - .quad sys_futex - .quad sys_sched_setaffinity /* 395 */ - .quad sys_sched_getaffinity - .quad sys_ni_syscall /* 397, tux */ - .quad sys_io_setup - .quad sys_io_destroy - .quad sys_io_getevents /* 400 */ - .quad sys_io_submit - .quad sys_io_cancel - .quad sys_ni_syscall /* 403, sys_alloc_hugepages */ - .quad sys_ni_syscall /* 404, sys_free_hugepages */ - .quad sys_exit_group /* 405 */ - .quad sys_lookup_dcookie - .quad sys_epoll_create - .quad sys_epoll_ctl - .quad sys_epoll_wait - .quad sys_remap_file_pages /* 410 */ - .quad sys_set_tid_address - .quad sys_restart_syscall - .quad sys_fadvise64 - .quad sys_timer_create - .quad sys_timer_settime /* 415 */ - .quad sys_timer_gettime - .quad sys_timer_getoverrun - .quad sys_timer_delete - .quad sys_clock_settime - .quad sys_clock_gettime /* 420 */ - .quad sys_clock_getres - .quad sys_clock_nanosleep - .quad sys_semtimedop - .quad sys_tgkill - .quad sys_stat64 /* 425 */ - .quad sys_lstat64 - .quad sys_fstat64 - .quad sys_ni_syscall /* sys_vserver */ - .quad sys_ni_syscall /* sys_mbind */ - .quad sys_ni_syscall /* sys_get_mempolicy */ - .quad sys_ni_syscall /* sys_set_mempolicy */ - .quad sys_mq_open - .quad sys_mq_unlink - .quad sys_mq_timedsend - .quad sys_mq_timedreceive /* 435 */ - .quad sys_mq_notify - .quad sys_mq_getsetattr - .quad sys_waitid - .quad sys_add_key - .quad sys_request_key /* 440 */ - .quad sys_keyctl - .quad sys_ioprio_set - .quad sys_ioprio_get - .quad sys_inotify_init - .quad sys_inotify_add_watch /* 445 */ - .quad sys_inotify_rm_watch - .quad sys_fdatasync - .quad sys_kexec_load - .quad sys_migrate_pages - .quad sys_openat /* 450 */ - .quad sys_mkdirat - .quad sys_mknodat - .quad sys_fchownat - .quad sys_futimesat - .quad sys_fstatat64 /* 455 */ - .quad sys_unlinkat - .quad sys_renameat - .quad sys_linkat - .quad sys_symlinkat - .quad sys_readlinkat /* 460 */ - .quad sys_fchmodat - .quad sys_faccessat - .quad sys_pselect6 - .quad sys_ppoll - .quad sys_unshare /* 465 */ - .quad sys_set_robust_list - .quad sys_get_robust_list - .quad sys_splice - .quad sys_sync_file_range - .quad sys_tee /* 470 */ - .quad sys_vmsplice - .quad sys_move_pages - .quad sys_getcpu - .quad sys_epoll_pwait - .quad sys_utimensat /* 475 */ - .quad sys_signalfd - .quad sys_ni_syscall /* sys_timerfd */ - .quad sys_eventfd - .quad sys_recvmmsg - .quad sys_fallocate /* 480 */ - .quad sys_timerfd_create - .quad sys_timerfd_settime - .quad sys_timerfd_gettime - .quad sys_signalfd4 - .quad sys_eventfd2 /* 485 */ - .quad sys_epoll_create1 - .quad sys_dup3 - .quad sys_pipe2 - .quad sys_inotify_init1 - .quad sys_preadv /* 490 */ - .quad sys_pwritev - .quad sys_rt_tgsigqueueinfo - .quad sys_perf_event_open - .quad sys_fanotify_init - .quad sys_fanotify_mark /* 495 */ - .quad sys_prlimit64 - .quad sys_name_to_handle_at - .quad sys_open_by_handle_at - .quad sys_clock_adjtime - .quad sys_syncfs /* 500 */ - .quad sys_setns - .quad sys_accept4 - .quad sys_sendmmsg - .quad sys_process_vm_readv - .quad sys_process_vm_writev /* 505 */ - - .size sys_call_table, . - sys_call_table - .type sys_call_table, @object - -/* Remember to update everything, kids. */ -.ifne (. - sys_call_table) - (NR_SYSCALLS * 8) -.err -.endif +#include <asm/syscall_table.h> diff --git a/arch/alpha/kernel/termios.c b/arch/alpha/kernel/termios.c new file mode 100644 index 000000000000..a4c29a22edf7 --- /dev/null +++ b/arch/alpha/kernel/termios.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/termios_internal.h> + +int user_termio_to_kernel_termios(struct ktermios *termios, + struct termio __user *termio) +{ + struct termio v; + bool canon; + + if (copy_from_user(&v, termio, sizeof(struct termio))) + return -EFAULT; + + termios->c_iflag = (0xffff0000 & termios->c_iflag) | v.c_iflag; + termios->c_oflag = (0xffff0000 & termios->c_oflag) | v.c_oflag; + termios->c_cflag = (0xffff0000 & termios->c_cflag) | v.c_cflag; + termios->c_lflag = (0xffff0000 & termios->c_lflag) | v.c_lflag; + termios->c_line = (0xffff0000 & termios->c_lflag) | v.c_line; + + canon = v.c_lflag & ICANON; + termios->c_cc[VINTR] = v.c_cc[_VINTR]; + termios->c_cc[VQUIT] = v.c_cc[_VQUIT]; + termios->c_cc[VERASE] = v.c_cc[_VERASE]; + termios->c_cc[VKILL] = v.c_cc[_VKILL]; + termios->c_cc[VEOL2] = v.c_cc[_VEOL2]; + termios->c_cc[VSWTC] = v.c_cc[_VSWTC]; + termios->c_cc[canon ? VEOF : VMIN] = v.c_cc[_VEOF]; + termios->c_cc[canon ? VEOL : VTIME] = v.c_cc[_VEOL]; + + return 0; +} + +int kernel_termios_to_user_termio(struct termio __user *termio, + struct ktermios *termios) +{ + struct termio v; + bool canon; + + memset(&v, 0, sizeof(struct termio)); + v.c_iflag = termios->c_iflag; + v.c_oflag = termios->c_oflag; + v.c_cflag = termios->c_cflag; + v.c_lflag = termios->c_lflag; + v.c_line = termios->c_line; + + canon = v.c_lflag & ICANON; + v.c_cc[_VINTR] = termios->c_cc[VINTR]; + v.c_cc[_VQUIT] = termios->c_cc[VQUIT]; + v.c_cc[_VERASE] = termios->c_cc[VERASE]; + v.c_cc[_VKILL] = termios->c_cc[VKILL]; + v.c_cc[_VEOF] = termios->c_cc[canon ? VEOF : VMIN]; + v.c_cc[_VEOL] = termios->c_cc[canon ? VEOL : VTIME]; + v.c_cc[_VEOL2] = termios->c_cc[VEOL2]; + v.c_cc[_VSWTC] = termios->c_cc[VSWTC]; + + return copy_to_user(termio, &v, sizeof(struct termio)); +} diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index e336694ca042..4d01c392ab14 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -1,15 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/kernel/time.c * * Copyright (C) 1991, 1992, 1995, 1999, 2000 Linus Torvalds * - * This file contains the PC-specific time handling details: - * reading the RTC at bootup, etc.. - * 1994-07-02 Alan Modra - * fixed set_rtc_mmss, fixed time.year for >= 2000, new mktime - * 1995-03-26 Markus Kuhn - * fixed 500 ms bug at call to set_rtc_mmss, fixed DS12887 - * precision CMOS clock update + * This file contains the clocksource time handling. * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 * "A Kernel Model for Precision Timekeeping" by Dave Mills * 1997-01-09 Adrian Sun @@ -21,9 +16,6 @@ * 1999-04-16 Thorsten Kranzkowski (dl8bcu@gmx.net) * fixed algorithm in do_gettimeofday() for calculating the precise time * from processor cycle counter (now taking lost_ticks into account) - * 2000-08-13 Jan-Benedict Glaw <jbglaw@lug-owl.de> - * Fixed time_init to be aware of epoches != 1900. This prevents - * booting up in 2048 for me;) Code is stolen from rtc.c. * 2003-06-03 R. Scott Bailey <scott.bailey@eds.com> * Tighten sanity in time_init from 1% (10,000 PPM) to 250 PPM */ @@ -43,52 +35,31 @@ #include <linux/profile.h> #include <linux/irq_work.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/io.h> #include <asm/hwrpb.h> -#include <asm/rtc.h> #include <linux/mc146818rtc.h> #include <linux/time.h> #include <linux/timex.h> #include <linux/clocksource.h> +#include <linux/clockchips.h> #include "proto.h" #include "irq_impl.h" -static int set_rtc_mmss(unsigned long); - DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -#define TICK_SIZE (tick_nsec / 1000) - -/* - * Shift amount by which scaled_ticks_per_cycle is scaled. Shifting - * by 48 gives us 16 bits for HZ while keeping the accuracy good even - * for large CPU clock rates. - */ -#define FIX_SHIFT 48 - -/* lump static variables together for more efficient access: */ -static struct { - /* cycle counter last time it got invoked */ - __u32 last_time; - /* ticks/cycle * 2^48 */ - unsigned long scaled_ticks_per_cycle; - /* partial unused tick */ - unsigned long partial_tick; -} state; - unsigned long est_cycle_freq; #ifdef CONFIG_IRQ_WORK DEFINE_PER_CPU(u8, irq_work_pending); -#define set_irq_work_pending_flag() __get_cpu_var(irq_work_pending) = 1 -#define test_irq_work_pending() __get_cpu_var(irq_work_pending) -#define clear_irq_work_pending() __get_cpu_var(irq_work_pending) = 0 +#define set_irq_work_pending_flag() __this_cpu_write(irq_work_pending, 1) +#define test_irq_work_pending() __this_cpu_read(irq_work_pending) +#define clear_irq_work_pending() __this_cpu_write(irq_work_pending, 0) void arch_irq_work_raise(void) { @@ -105,114 +76,153 @@ void arch_irq_work_raise(void) static inline __u32 rpcc(void) { - __u32 result; - asm volatile ("rpcc %0" : "=r"(result)); - return result; + return __builtin_alpha_rpcc(); } -int update_persistent_clock(struct timespec now) -{ - return set_rtc_mmss(now.tv_sec); -} -void read_persistent_clock(struct timespec *ts) + +/* + * The RTC as a clock_event_device primitive. + */ + +static DEFINE_PER_CPU(struct clock_event_device, cpu_ce); + +irqreturn_t +rtc_timer_interrupt(int irq, void *dev) { - unsigned int year, mon, day, hour, min, sec, epoch; - - sec = CMOS_READ(RTC_SECONDS); - min = CMOS_READ(RTC_MINUTES); - hour = CMOS_READ(RTC_HOURS); - day = CMOS_READ(RTC_DAY_OF_MONTH); - mon = CMOS_READ(RTC_MONTH); - year = CMOS_READ(RTC_YEAR); - - if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - sec = bcd2bin(sec); - min = bcd2bin(min); - hour = bcd2bin(hour); - day = bcd2bin(day); - mon = bcd2bin(mon); - year = bcd2bin(year); - } + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); - /* PC-like is standard; used for year >= 70 */ - epoch = 1900; - if (year < 20) - epoch = 2000; - else if (year >= 20 && year < 48) - /* NT epoch */ - epoch = 1980; - else if (year >= 48 && year < 70) - /* Digital UNIX epoch */ - epoch = 1952; + /* Don't run the hook for UNUSED or SHUTDOWN. */ + if (likely(clockevent_state_periodic(ce))) + ce->event_handler(ce); - printk(KERN_INFO "Using epoch = %d\n", epoch); + if (test_irq_work_pending()) { + clear_irq_work_pending(); + irq_work_run(); + } - if ((year += epoch) < 1970) - year += 100; + return IRQ_HANDLED; +} - ts->tv_sec = mktime(year, mon, day, hour, min, sec); - ts->tv_nsec = 0; +static int +rtc_ce_set_next_event(unsigned long evt, struct clock_event_device *ce) +{ + /* This hook is for oneshot mode, which we don't support. */ + return -EINVAL; } +static void __init +init_rtc_clockevent(void) +{ + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); + + *ce = (struct clock_event_device){ + .name = "rtc", + .features = CLOCK_EVT_FEAT_PERIODIC, + .rating = 100, + .cpumask = cpumask_of(cpu), + .set_next_event = rtc_ce_set_next_event, + }; + clockevents_config_and_register(ce, CONFIG_HZ, 0, 0); +} + /* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick + * The QEMU clock as a clocksource primitive. */ -irqreturn_t timer_interrupt(int irq, void *dev) + +static u64 +qemu_cs_read(struct clocksource *cs) { - unsigned long delta; - __u32 now; - long nticks; + return qemu_get_vmtime(); +} -#ifndef CONFIG_SMP - /* Not SMP, do kernel PC profiling here. */ - profile_tick(CPU_PROFILING); -#endif +static struct clocksource qemu_cs = { + .name = "qemu", + .rating = 400, + .read = qemu_cs_read, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + .max_idle_ns = LONG_MAX +}; - /* - * Calculate how many ticks have passed since the last update, - * including any previous partial leftover. Save any resulting - * fraction for the next pass. - */ - now = rpcc(); - delta = now - state.last_time; - state.last_time = now; - delta = delta * state.scaled_ticks_per_cycle + state.partial_tick; - state.partial_tick = delta & ((1UL << FIX_SHIFT) - 1); - nticks = delta >> FIX_SHIFT; - if (nticks) - xtime_update(nticks); +/* + * The QEMU alarm as a clock_event_device primitive. + */ - if (test_irq_work_pending()) { - clear_irq_work_pending(); - irq_work_run(); - } +static int qemu_ce_shutdown(struct clock_event_device *ce) +{ + /* The mode member of CE is updated for us in generic code. + Just make sure that the event is disabled. */ + qemu_set_alarm_abs(0); + return 0; +} -#ifndef CONFIG_SMP - while (nticks--) - update_process_times(user_mode(get_irq_regs())); -#endif +static int +qemu_ce_set_next_event(unsigned long evt, struct clock_event_device *ce) +{ + qemu_set_alarm_rel(evt); + return 0; +} +static irqreturn_t +qemu_timer_interrupt(int irq, void *dev) +{ + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); + + ce->event_handler(ce); return IRQ_HANDLED; } +static void __init +init_qemu_clockevent(void) +{ + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); + + *ce = (struct clock_event_device){ + .name = "qemu", + .features = CLOCK_EVT_FEAT_ONESHOT, + .rating = 400, + .cpumask = cpumask_of(cpu), + .set_state_shutdown = qemu_ce_shutdown, + .set_state_oneshot = qemu_ce_shutdown, + .tick_resume = qemu_ce_shutdown, + .set_next_event = qemu_ce_set_next_event, + }; + + clockevents_config_and_register(ce, NSEC_PER_SEC, 1000, LONG_MAX); +} + + void __init common_init_rtc(void) { - unsigned char x; + unsigned char x, sel = 0; /* Reset periodic interrupt frequency. */ - x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f; - /* Test includes known working values on various platforms - where 0x26 is wrong; we refuse to change those. */ - if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) { - printk("Setting RTC_FREQ to 1024 Hz (%x)\n", x); - CMOS_WRITE(0x26, RTC_FREQ_SELECT); +#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200 + x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f; + /* Test includes known working values on various platforms + where 0x26 is wrong; we refuse to change those. */ + if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) { + sel = RTC_REF_CLCK_32KHZ + 6; } +#elif CONFIG_HZ == 256 || CONFIG_HZ == 128 || CONFIG_HZ == 64 || CONFIG_HZ == 32 + sel = RTC_REF_CLCK_32KHZ + __builtin_ffs(32768 / CONFIG_HZ); +#else +# error "Unknown HZ from arch/alpha/Kconfig" +#endif + if (sel) { + printk(KERN_INFO "Setting RTC_FREQ to %d Hz (%x)\n", + CONFIG_HZ, sel); + CMOS_WRITE(sel, RTC_FREQ_SELECT); + } /* Turn on periodic interrupts. */ x = CMOS_READ(RTC_CONTROL); @@ -232,19 +242,40 @@ common_init_rtc(void) outb(0x31, 0x42); outb(0x13, 0x42); - init_rtc_irq(); + init_rtc_irq(NULL); } -unsigned int common_get_rtc_time(struct rtc_time *time) -{ - return __get_rtc_time(time); -} + +#ifndef CONFIG_ALPHA_WTINT +/* + * The RPCC as a clocksource primitive. + * + * While we have free-running timecounters running on all CPUs, and we make + * a half-hearted attempt in init_rtc_rpcc_info to sync the timecounter + * with the wall clock, that initialization isn't kept up-to-date across + * different time counters in SMP mode. Therefore we can only use this + * method when there's only one CPU enabled. + * + * When using the WTINT PALcall, the RPCC may shift to a lower frequency, + * or stop altogether, while waiting for the interrupt. Therefore we cannot + * use this method when WTINT is in use. + */ -int common_set_rtc_time(struct rtc_time *time) +static u64 read_rpcc(struct clocksource *cs) { - return __set_rtc_time(time); + return rpcc(); } +static struct clocksource clocksource_rpcc = { + .name = "rpcc", + .rating = 300, + .read = read_rpcc, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS +}; +#endif /* ALPHA_WTINT */ + + /* Validate a computed cycle counter result against the known bounds for the given processor core. There's too much brokenness in the way of timing hardware for any one method to work everywhere. :-( @@ -355,33 +386,6 @@ rpcc_after_update_in_progress(void) return rpcc(); } -#ifndef CONFIG_SMP -/* Until and unless we figure out how to get cpu cycle counters - in sync and keep them there, we can't use the rpcc. */ -static cycle_t read_rpcc(struct clocksource *cs) -{ - cycle_t ret = (cycle_t)rpcc(); - return ret; -} - -static struct clocksource clocksource_rpcc = { - .name = "rpcc", - .rating = 300, - .read = read_rpcc, - .mask = CLOCKSOURCE_MASK(32), - .flags = CLOCK_SOURCE_IS_CONTINUOUS -}; - -static inline void register_rpcc_clocksource(long cycle_freq) -{ - clocksource_register_hz(&clocksource_rpcc, cycle_freq); -} -#else /* !CONFIG_SMP */ -static inline void register_rpcc_clocksource(long cycle_freq) -{ -} -#endif /* !CONFIG_SMP */ - void __init time_init(void) { @@ -389,6 +393,13 @@ time_init(void) unsigned long cycle_freq, tolerance; long diff; + if (alpha_using_qemu) { + clocksource_register_hz(&qemu_cs, NSEC_PER_SEC); + init_qemu_clockevent(); + init_rtc_irq(qemu_timer_interrupt); + return; + } + /* Calibrate CPU clock -- attempt #1. */ if (!est_cycle_freq) est_cycle_freq = validate_cc_value(calibrate_cc_with_pit()); @@ -423,100 +434,25 @@ time_init(void) "and unable to estimate a proper value!\n"); } - /* From John Bowman <bowman@math.ualberta.ca>: allow the values - to settle, as the Update-In-Progress bit going low isn't good - enough on some hardware. 2ms is our guess; we haven't found - bogomips yet, but this is close on a 500Mhz box. */ - __delay(1000000); - - - if (HZ > (1<<16)) { - extern void __you_loose (void); - __you_loose(); - } - - register_rpcc_clocksource(cycle_freq); - - state.last_time = cc1; - state.scaled_ticks_per_cycle - = ((unsigned long) HZ << FIX_SHIFT) / cycle_freq; - state.partial_tick = 0L; + /* See above for restrictions on using clocksource_rpcc. */ +#ifndef CONFIG_ALPHA_WTINT + if (hwrpb->nr_processors == 1) + clocksource_register_hz(&clocksource_rpcc, cycle_freq); +#endif /* Startup the timer source. */ alpha_mv.init_rtc(); + init_rtc_clockevent(); } -/* - * In order to set the CMOS clock precisely, set_rtc_mmss has to be - * called 500 ms after the second nowtime has started, because when - * nowtime is written into the registers of the CMOS clock, it will - * jump to the next second precisely 500 ms later. Check the Motorola - * MC146818A or Dallas DS12887 data sheet for details. - * - * BUG: This routine does not handle hour overflow properly; it just - * sets the minutes. Usually you won't notice until after reboot! - */ - - -static int -set_rtc_mmss(unsigned long nowtime) +/* Initialize the clock_event_device for secondary cpus. */ +#ifdef CONFIG_SMP +void __init +init_clockevent(void) { - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - unsigned char save_control, save_freq_select; - - /* irq are locally disabled here */ - spin_lock(&rtc_lock); - /* Tell the clock it's being set */ - save_control = CMOS_READ(RTC_CONTROL); - CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); - - /* Stop and reset prescaler */ - save_freq_select = CMOS_READ(RTC_FREQ_SELECT); - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); - - cmos_minutes = CMOS_READ(RTC_MINUTES); - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - cmos_minutes = bcd2bin(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) { - /* correct for half hour time zone */ - real_minutes += 30; - } - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - real_seconds = bin2bcd(real_seconds); - real_minutes = bin2bcd(real_minutes); - } - CMOS_WRITE(real_seconds,RTC_SECONDS); - CMOS_WRITE(real_minutes,RTC_MINUTES); - } else { - printk_once(KERN_NOTICE - "set_rtc_mmss: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - /* The following flags have to be released exactly in this order, - * otherwise the DS12887 (popular MC146818A clone with integrated - * battery and quartz) will not reset the oscillator and will not - * update precisely 500 ms later. You won't find this mentioned in - * the Dallas Semiconductor data sheets, but who believes data - * sheets anyway ... -- Markus Kuhn - */ - CMOS_WRITE(save_control, RTC_CONTROL); - CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); - spin_unlock(&rtc_lock); - - return retval; + if (alpha_using_qemu) + init_qemu_clockevent(); + else + init_rtc_clockevent(); } +#endif diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index affccb959a9e..7004397937cf 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/kernel/traps.c * @@ -8,19 +9,20 @@ * This file initializes the trap entry points */ +#include <linux/cpu.h> #include <linux/jiffies.h> #include <linux/mm.h> -#include <linux/sched.h> +#include <linux/sched/signal.h> +#include <linux/sched/debug.h> #include <linux/tty.h> #include <linux/delay.h> -#include <linux/module.h> -#include <linux/init.h> +#include <linux/extable.h> #include <linux/kallsyms.h> #include <linux/ratelimit.h> #include <asm/gentrap.h> -#include <asm/uaccess.h> -#include <asm/unaligned.h> +#include <linux/uaccess.h> +#include <linux/unaligned.h> #include <asm/sysinfo.h> #include <asm/hwrpb.h> #include <asm/mmu_context.h> @@ -28,46 +30,13 @@ #include "proto.h" -/* Work-around for some SRMs which mishandle opDEC faults. */ - -static int opDEC_fix; - -static void __cpuinit -opDEC_check(void) -{ - __asm__ __volatile__ ( - /* Load the address of... */ - " br $16, 1f\n" - /* A stub instruction fault handler. Just add 4 to the - pc and continue. */ - " ldq $16, 8($sp)\n" - " addq $16, 4, $16\n" - " stq $16, 8($sp)\n" - " call_pal %[rti]\n" - /* Install the instruction fault handler. */ - "1: lda $17, 3\n" - " call_pal %[wrent]\n" - /* With that in place, the fault from the round-to-minf fp - insn will arrive either at the "lda 4" insn (bad) or one - past that (good). This places the correct fixup in %0. */ - " lda %[fix], 0\n" - " cvttq/svm $f31,$f31\n" - " lda %[fix], 4" - : [fix] "=r" (opDEC_fix) - : [rti] "n" (PAL_rti), [wrent] "n" (PAL_wrent) - : "$0", "$1", "$16", "$17", "$22", "$23", "$24", "$25"); - - if (opDEC_fix) - printk("opDEC fixup enabled.\n"); -} - void dik_show_regs(struct pt_regs *regs, unsigned long *r9_15) { printk("pc = [<%016lx>] ra = [<%016lx>] ps = %04lx %s\n", regs->pc, regs->r26, regs->ps, print_tainted()); - print_symbol("pc is at %s\n", regs->pc); - print_symbol("ra is at %s\n", regs->r26 ); + printk("pc is at %pSR\n", (void *)regs->pc); + printk("ra is at %pSR\n", (void *)regs->r26); printk("v0 = %016lx t0 = %016lx t1 = %016lx\n", regs->r0, regs->r1, regs->r2); printk("t2 = %016lx t3 = %016lx t4 = %016lx\n", @@ -120,38 +89,34 @@ dik_show_code(unsigned int *pc) } static void -dik_show_trace(unsigned long *sp) +dik_show_trace(unsigned long *sp, const char *loglvl) { long i = 0; - printk("Trace:\n"); + printk("%sTrace:\n", loglvl); while (0x1ff8 & (unsigned long) sp) { extern char _stext[], _etext[]; unsigned long tmp = *sp; sp++; - if (tmp < (unsigned long) &_stext) - continue; - if (tmp >= (unsigned long) &_etext) + if (!is_kernel_text(tmp)) continue; - printk("[<%lx>]", tmp); - print_symbol(" %s", tmp); - printk("\n"); + printk("%s[<%lx>] %pSR\n", loglvl, tmp, (void *)tmp); if (i > 40) { - printk(" ..."); + printk("%s ...", loglvl); break; } } - printk("\n"); + printk("%s\n", loglvl); } static int kstack_depth_to_print = 24; -void show_stack(struct task_struct *task, unsigned long *sp) +void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl) { unsigned long *stack; int i; /* - * debugging aid: "show_stack(NULL);" prints the + * debugging aid: "show_stack(NULL, NULL, KERN_EMERG);" prints the * back trace for this cpu. */ if(sp==NULL) @@ -161,12 +126,17 @@ void show_stack(struct task_struct *task, unsigned long *sp) for(i=0; i < kstack_depth_to_print; i++) { if (((long) stack & (THREAD_SIZE-1)) == 0) break; - if (i && ((i % 4) == 0)) - printk("\n "); - printk("%016lx ", *stack++); + if ((i % 4) == 0) { + if (i) + pr_cont("\n"); + printk("%s ", loglvl); + } else { + pr_cont(" "); + } + pr_cont("%016lx", *stack++); } - printk("\n"); - dik_show_trace(sp); + pr_cont("\n"); + dik_show_trace(sp, loglvl); } void @@ -180,7 +150,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err); dik_show_regs(regs, r9_15); add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); - dik_show_trace((unsigned long *)(regs+1)); + dik_show_trace((unsigned long *)(regs+1), KERN_DEFAULT); dik_show_code((unsigned int *)regs->pc); if (test_and_set_thread_flag (TIF_DIE_IF_KERNEL)) { @@ -188,15 +158,17 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) local_irq_enable(); while (1); } - do_exit(SIGSEGV); + make_task_dead(SIGSEGV); } #ifndef CONFIG_MATHEMU static long dummy_emul(void) { return 0; } long (*alpha_fp_emul_imprecise)(struct pt_regs *regs, unsigned long writemask) = (void *)dummy_emul; +EXPORT_SYMBOL_GPL(alpha_fp_emul_imprecise); long (*alpha_fp_emul) (unsigned long pc) = (void *)dummy_emul; +EXPORT_SYMBOL_GPL(alpha_fp_emul); #else long alpha_fp_emul_imprecise(struct pt_regs *regs, unsigned long writemask); long alpha_fp_emul (unsigned long pc); @@ -207,7 +179,6 @@ do_entArith(unsigned long summary, unsigned long write_mask, struct pt_regs *regs) { long si_code = FPE_FLTINV; - siginfo_t info; if (summary & 1) { /* Software-completion summary bit is set, so try to @@ -222,20 +193,29 @@ do_entArith(unsigned long summary, unsigned long write_mask, } die_if_kernel("Arithmetic fault", regs, 0, NULL); - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_code = si_code; - info.si_addr = (void __user *) regs->pc; - send_sig_info(SIGFPE, &info, current); + send_sig_fault_trapno(SIGFPE, si_code, (void __user *) regs->pc, 0, current); } asmlinkage void do_entIF(unsigned long type, struct pt_regs *regs) { - siginfo_t info; int signo, code; - if ((regs->ps & ~IPL_MAX) == 0) { + if (type == 3) { /* FEN fault */ + /* Irritating users can call PAL_clrfen to disable the + FPU for the process. The kernel will then trap in + do_switch_stack and undo_switch_stack when we try + to save and restore the FP registers. + + Given that GCC by default generates code that uses the + FP registers, PAL_clrfen is not useful except for DoS + attacks. So turn the bleeding FPU back on and be done + with it. */ + current_thread_info()->pcb.flags |= 1; + __reload_thread(¤t_thread_info()->pcb); + return; + } + if (!user_mode(regs)) { if (type == 1) { const unsigned int *data = (const unsigned int *) regs->pc; @@ -243,37 +223,41 @@ do_entIF(unsigned long type, struct pt_regs *regs) (const char *)(data[1] | (long)data[2] << 32), data[0]); } +#ifdef CONFIG_ALPHA_WTINT + if (type == 4) { + /* If CALL_PAL WTINT is totally unsupported by the + PALcode, e.g. MILO, "emulate" it by overwriting + the insn. */ + unsigned int *pinsn + = (unsigned int *) regs->pc - 1; + if (*pinsn == PAL_wtint) { + *pinsn = 0x47e01400; /* mov 0,$0 */ + imb(); + regs->r0 = 0; + return; + } + } +#endif /* ALPHA_WTINT */ die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"), regs, type, NULL); } switch (type) { case 0: /* breakpoint */ - info.si_signo = SIGTRAP; - info.si_errno = 0; - info.si_code = TRAP_BRKPT; - info.si_trapno = 0; - info.si_addr = (void __user *) regs->pc; - if (ptrace_cancel_bpt(current)) { regs->pc -= 4; /* make pc point to former bpt */ } - send_sig_info(SIGTRAP, &info, current); + send_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc, + current); return; case 1: /* bugcheck */ - info.si_signo = SIGTRAP; - info.si_errno = 0; - info.si_code = __SI_FAULT; - info.si_addr = (void __user *) regs->pc; - info.si_trapno = 0; - send_sig_info(SIGTRAP, &info, current); + send_sig_fault_trapno(SIGTRAP, TRAP_UNK, + (void __user *) regs->pc, 0, current); return; case 2: /* gentrap */ - info.si_addr = (void __user *) regs->pc; - info.si_trapno = regs->r16; switch ((long) regs->r16) { case GEN_INTOVF: signo = SIGFPE; @@ -305,7 +289,7 @@ do_entIF(unsigned long type, struct pt_regs *regs) break; case GEN_ROPRAND: signo = SIGFPE; - code = __SI_FAULT; + code = FPE_FLTUNK; break; case GEN_DECOVF: @@ -327,72 +311,23 @@ do_entIF(unsigned long type, struct pt_regs *regs) case GEN_SUBRNG7: default: signo = SIGTRAP; - code = __SI_FAULT; + code = TRAP_UNK; break; } - info.si_signo = signo; - info.si_errno = 0; - info.si_code = code; - info.si_addr = (void __user *) regs->pc; - send_sig_info(signo, &info, current); + send_sig_fault_trapno(signo, code, (void __user *) regs->pc, + regs->r16, current); return; case 4: /* opDEC */ - if (implver() == IMPLVER_EV4) { - long si_code; - - /* The some versions of SRM do not handle - the opDEC properly - they return the PC of the - opDEC fault, not the instruction after as the - Alpha architecture requires. Here we fix it up. - We do this by intentionally causing an opDEC - fault during the boot sequence and testing if - we get the correct PC. If not, we set a flag - to correct it every time through. */ - regs->pc += opDEC_fix; - - /* EV4 does not implement anything except normal - rounding. Everything else will come here as - an illegal instruction. Emulate them. */ - si_code = alpha_fp_emul(regs->pc - 4); - if (si_code == 0) - return; - if (si_code > 0) { - info.si_signo = SIGFPE; - info.si_errno = 0; - info.si_code = si_code; - info.si_addr = (void __user *) regs->pc; - send_sig_info(SIGFPE, &info, current); - return; - } - } break; - case 3: /* FEN fault */ - /* Irritating users can call PAL_clrfen to disable the - FPU for the process. The kernel will then trap in - do_switch_stack and undo_switch_stack when we try - to save and restore the FP registers. - - Given that GCC by default generates code that uses the - FP registers, PAL_clrfen is not useful except for DoS - attacks. So turn the bleeding FPU back on and be done - with it. */ - current_thread_info()->pcb.flags |= 1; - __reload_thread(¤t_thread_info()->pcb); - return; - case 5: /* illoc */ default: /* unexpected instruction-fault type */ ; } - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLOPC; - info.si_addr = (void __user *) regs->pc; - send_sig_info(SIGILL, &info, current); + send_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc, current); } /* There is an ifdef in the PALcode in MILO that enables a @@ -405,15 +340,9 @@ do_entIF(unsigned long type, struct pt_regs *regs) asmlinkage void do_entDbg(struct pt_regs *regs) { - siginfo_t info; - die_if_kernel("Instruction fault", regs, 0, NULL); - info.si_signo = SIGILL; - info.si_errno = 0; - info.si_code = ILL_ILLOPC; - info.si_addr = (void __user *) regs->pc; - force_sig_info(SIGILL, &info, current); + force_sig_fault(SIGILL, ILL_ILLOPC, (void __user *)regs->pc); } @@ -469,12 +398,8 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, " extwl %1,%3,%1\n" " extwh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -489,12 +414,8 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, " extll %1,%3,%1\n" " extlh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -509,12 +430,8 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, " extql %1,%3,%1\n" " extqh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -538,16 +455,10 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, "3: stq_u %2,1(%5)\n" "4: stq_u %1,0(%5)\n" "5:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %2,5b-1b(%0)\n" - " .long 2b - .\n" - " lda %1,5b-2b(%0)\n" - " .long 3b - .\n" - " lda $31,5b-3b(%0)\n" - " .long 4b - .\n" - " lda $31,5b-4b(%0)\n" - ".previous" + EXC(1b,5b,%2,%0) + EXC(2b,5b,%1,%0) + EXC(3b,5b,$31,%0) + EXC(4b,5b,$31,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4) : "r"(va), "r"(una_reg(reg)), "0"(0)); @@ -568,16 +479,10 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, "3: stq_u %2,3(%5)\n" "4: stq_u %1,0(%5)\n" "5:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %2,5b-1b(%0)\n" - " .long 2b - .\n" - " lda %1,5b-2b(%0)\n" - " .long 3b - .\n" - " lda $31,5b-3b(%0)\n" - " .long 4b - .\n" - " lda $31,5b-4b(%0)\n" - ".previous" + EXC(1b,5b,%2,%0) + EXC(2b,5b,%1,%0) + EXC(3b,5b,$31,%0) + EXC(4b,5b,$31,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4) : "r"(va), "r"(una_reg(reg)), "0"(0)); @@ -598,16 +503,10 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, "3: stq_u %2,7(%5)\n" "4: stq_u %1,0(%5)\n" "5:\n" - ".section __ex_table,\"a\"\n\t" - " .long 1b - .\n" - " lda %2,5b-1b(%0)\n" - " .long 2b - .\n" - " lda %1,5b-2b(%0)\n" - " .long 3b - .\n" - " lda $31,5b-3b(%0)\n" - " .long 4b - .\n" - " lda $31,5b-4b(%0)\n" - ".previous" + EXC(1b,5b,%2,%0) + EXC(2b,5b,%1,%0) + EXC(3b,5b,$31,%0) + EXC(4b,5b,$31,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4) : "r"(va), "r"(una_reg(reg)), "0"(0)); @@ -618,7 +517,7 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n", pc, va, opcode, reg); - do_exit(SIGSEGV); + make_task_dead(SIGSEGV); got_exception: /* Ok, we caught the exception, but we don't want it. Is there @@ -666,14 +565,14 @@ got_exception: printk("gp = %016lx sp = %p\n", regs->gp, regs+1); dik_show_code((unsigned int *)pc); - dik_show_trace((unsigned long *)(regs+1)); + dik_show_trace((unsigned long *)(regs+1), KERN_DEFAULT); if (test_and_set_thread_flag (TIF_DIE_IF_KERNEL)) { printk("die_if_kernel recursion detected.\n"); local_irq_enable(); while (1); } - do_exit(SIGSEGV); + make_task_dead(SIGSEGV); } /* @@ -750,7 +649,7 @@ s_reg_to_mem (unsigned long s_reg) static int unauser_reg_offsets[32] = { R(r0), R(r1), R(r2), R(r3), R(r4), R(r5), R(r6), R(r7), R(r8), /* r9 ... r15 are stored in front of regs. */ - -56, -48, -40, -32, -24, -16, -8, + -64, -56, -48, -40, -32, -24, -16, /* padding at -8 */ R(r16), R(r17), R(r18), R(r19), R(r20), R(r21), R(r22), R(r23), R(r24), R(r25), R(r26), R(r27), R(r28), R(gp), @@ -767,11 +666,11 @@ do_entUnaUser(void __user * va, unsigned long opcode, unsigned long tmp1, tmp2, tmp3, tmp4; unsigned long fake_reg, *reg_addr = &fake_reg; - siginfo_t info; + int si_code; long error; /* Check the UAC bits to decide what the user wants us to do - with the unaliged access. */ + with the unaligned access. */ if (!(current_thread_info()->status & TS_UAC_NOPRINT)) { if (__ratelimit(&ratelimit)) { @@ -789,7 +688,7 @@ do_entUnaUser(void __user * va, unsigned long opcode, /* Don't bother reading ds in the access check since we already know that this came from the user. Also rely on the fact that the page at TASK_SIZE is unmapped and so can't be touched anyway. */ - if (!__access_ok((unsigned long)va, 0, USER_DS)) + if ((unsigned long)va >= TASK_SIZE) goto give_sigsegv; ++unaligned[1].count; @@ -822,12 +721,8 @@ do_entUnaUser(void __user * va, unsigned long opcode, " extwl %1,%3,%1\n" " extwh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -842,12 +737,8 @@ do_entUnaUser(void __user * va, unsigned long opcode, " extll %1,%3,%1\n" " extlh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -862,12 +753,8 @@ do_entUnaUser(void __user * va, unsigned long opcode, " extql %1,%3,%1\n" " extqh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -882,12 +769,8 @@ do_entUnaUser(void __user * va, unsigned long opcode, " extll %1,%3,%1\n" " extlh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -902,12 +785,8 @@ do_entUnaUser(void __user * va, unsigned long opcode, " extql %1,%3,%1\n" " extqh %2,%3,%2\n" "3:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %1,3b-1b(%0)\n" - " .long 2b - .\n" - " lda %2,3b-2b(%0)\n" - ".previous" + EXC(1b,3b,%1,%0) + EXC(2b,3b,%2,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2) : "r"(va), "0"(0)); if (error) @@ -931,16 +810,10 @@ do_entUnaUser(void __user * va, unsigned long opcode, "3: stq_u %2,1(%5)\n" "4: stq_u %1,0(%5)\n" "5:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %2,5b-1b(%0)\n" - " .long 2b - .\n" - " lda %1,5b-2b(%0)\n" - " .long 3b - .\n" - " lda $31,5b-3b(%0)\n" - " .long 4b - .\n" - " lda $31,5b-4b(%0)\n" - ".previous" + EXC(1b,5b,%2,%0) + EXC(2b,5b,%1,%0) + EXC(3b,5b,$31,%0) + EXC(4b,5b,$31,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4) : "r"(va), "r"(*reg_addr), "0"(0)); @@ -950,7 +823,7 @@ do_entUnaUser(void __user * va, unsigned long opcode, case 0x26: /* sts */ fake_reg = s_reg_to_mem(alpha_read_fp_reg(reg)); - /* FALLTHRU */ + fallthrough; case 0x2c: /* stl */ __asm__ __volatile__( @@ -965,16 +838,10 @@ do_entUnaUser(void __user * va, unsigned long opcode, "3: stq_u %2,3(%5)\n" "4: stq_u %1,0(%5)\n" "5:\n" - ".section __ex_table,\"a\"\n" - " .long 1b - .\n" - " lda %2,5b-1b(%0)\n" - " .long 2b - .\n" - " lda %1,5b-2b(%0)\n" - " .long 3b - .\n" - " lda $31,5b-3b(%0)\n" - " .long 4b - .\n" - " lda $31,5b-4b(%0)\n" - ".previous" + EXC(1b,5b,%2,%0) + EXC(2b,5b,%1,%0) + EXC(3b,5b,$31,%0) + EXC(4b,5b,$31,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4) : "r"(va), "r"(*reg_addr), "0"(0)); @@ -984,7 +851,7 @@ do_entUnaUser(void __user * va, unsigned long opcode, case 0x27: /* stt */ fake_reg = alpha_read_fp_reg(reg); - /* FALLTHRU */ + fallthrough; case 0x2d: /* stq */ __asm__ __volatile__( @@ -999,16 +866,10 @@ do_entUnaUser(void __user * va, unsigned long opcode, "3: stq_u %2,7(%5)\n" "4: stq_u %1,0(%5)\n" "5:\n" - ".section __ex_table,\"a\"\n\t" - " .long 1b - .\n" - " lda %2,5b-1b(%0)\n" - " .long 2b - .\n" - " lda %1,5b-2b(%0)\n" - " .long 3b - .\n" - " lda $31,5b-3b(%0)\n" - " .long 4b - .\n" - " lda $31,5b-4b(%0)\n" - ".previous" + EXC(1b,5b,%2,%0) + EXC(2b,5b,%1,%0) + EXC(3b,5b,$31,%0) + EXC(4b,5b,$31,%0) : "=r"(error), "=&r"(tmp1), "=&r"(tmp2), "=&r"(tmp3), "=&r"(tmp4) : "r"(va), "r"(*reg_addr), "0"(0)); @@ -1028,49 +889,37 @@ do_entUnaUser(void __user * va, unsigned long opcode, give_sigsegv: regs->pc -= 4; /* make pc point to faulting insn */ - info.si_signo = SIGSEGV; - info.si_errno = 0; /* We need to replicate some of the logic in mm/fault.c, since we don't have access to the fault code in the exception handling return path. */ - if (!__access_ok((unsigned long)va, 0, USER_DS)) - info.si_code = SEGV_ACCERR; + if ((unsigned long)va >= TASK_SIZE) + si_code = SEGV_ACCERR; else { struct mm_struct *mm = current->mm; - down_read(&mm->mmap_sem); + mmap_read_lock(mm); if (find_vma(mm, (unsigned long)va)) - info.si_code = SEGV_ACCERR; + si_code = SEGV_ACCERR; else - info.si_code = SEGV_MAPERR; - up_read(&mm->mmap_sem); + si_code = SEGV_MAPERR; + mmap_read_unlock(mm); } - info.si_addr = va; - send_sig_info(SIGSEGV, &info, current); + send_sig_fault(SIGSEGV, si_code, va, current); return; give_sigbus: regs->pc -= 4; - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRALN; - info.si_addr = va; - send_sig_info(SIGBUS, &info, current); + send_sig_fault(SIGBUS, BUS_ADRALN, va, current); return; } -void __cpuinit +void trap_init(void) { /* Tell PAL-code what global pointer we want in the kernel. */ register unsigned long gptr __asm__("$29"); wrkgp(gptr); - /* Hack for Multia (UDB) and JENSEN: some of their SRMs have - a bug in the handling of the opDEC fault. Fix it up if so. */ - if (implver() == IMPLVER_EV4) - opDEC_check(); - wrent(entArith, 1); wrent(entMM, 2); wrent(entIF, 3); diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index 647b84c15382..2efa7dfc798a 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -1,3 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#define EMITS_PT_NOTE +#define RO_EXCEPTION_TABLE_ALIGN 16 + #include <asm-generic/vmlinux.lds.h> #include <asm/thread_info.h> #include <asm/cache.h> @@ -7,7 +12,7 @@ OUTPUT_FORMAT("elf64-alpha") OUTPUT_ARCH(alpha) ENTRY(__start) -PHDRS { kernel PT_LOAD; note PT_NOTE; } +PHDRS { text PT_LOAD; note PT_NOTE; } jiffies = jiffies_64; SECTIONS { @@ -25,17 +30,11 @@ SECTIONS LOCK_TEXT *(.fixup) *(.gnu.warning) - } :kernel + } :text swapper_pg_dir = SWAPPER_PGD; _etext = .; /* End of text section */ - NOTES :kernel :note - .dummy : { - *(.dummy) - } :kernel - - RODATA - EXCEPTION_TABLE(16) + RO_DATA(4096) /* Will be freed after init */ __init_begin = ALIGN(PAGE_SIZE); @@ -50,7 +49,7 @@ SECTIONS _sdata = .; /* Start of rw data section */ _data = .; - RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) + RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) .got : { *(.got) @@ -72,6 +71,7 @@ SECTIONS STABS_DEBUG DWARF_DEBUG + ELF_DETAILS DISCARDS } diff --git a/arch/alpha/lib/Makefile b/arch/alpha/lib/Makefile index 59660743237c..84046e730e6d 100644 --- a/arch/alpha/lib/Makefile +++ b/arch/alpha/lib/Makefile @@ -1,9 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 # # Makefile for alpha-specific library files.. # asflags-y := $(KBUILD_CFLAGS) -ccflags-y := -Werror # Many of these routines have implementations tuned for ev6. # Choose them iff we're targeting ev6 specifically. @@ -13,6 +13,7 @@ ev6-$(CONFIG_ALPHA_EV6) := ev6- ev67-$(CONFIG_ALPHA_EV67) := ev67- lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \ + udiv-qrnnd.o \ udelay.o \ $(ev6-y)memset.o \ $(ev6-y)memcpy.o \ @@ -20,12 +21,8 @@ lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \ checksum.o \ csum_partial_copy.o \ $(ev67-y)strlen.o \ - $(ev67-y)strcat.o \ - strcpy.o \ - $(ev67-y)strncat.o \ - strncpy.o \ - $(ev6-y)stxcpy.o \ - $(ev6-y)stxncpy.o \ + stycpy.o \ + styncpy.o \ $(ev67-y)strchr.o \ $(ev67-y)strrchr.o \ $(ev6-y)memchr.o \ @@ -38,19 +35,12 @@ lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \ callback_srm.o srm_puts.o srm_printk.o \ fls.o -lib-$(CONFIG_SMP) += dec_and_lock.o - # The division routines are built from single source, with different defines. AFLAGS___divqu.o = -DDIV AFLAGS___remqu.o = -DREM AFLAGS___divlu.o = -DDIV -DINTSIZE AFLAGS___remlu.o = -DREM -DINTSIZE -$(obj)/__divqu.o: $(obj)/$(ev6-y)divide.S - $(cmd_as_o_S) -$(obj)/__remqu.o: $(obj)/$(ev6-y)divide.S - $(cmd_as_o_S) -$(obj)/__divlu.o: $(obj)/$(ev6-y)divide.S - $(cmd_as_o_S) -$(obj)/__remlu.o: $(obj)/$(ev6-y)divide.S - $(cmd_as_o_S) +$(addprefix $(obj)/,__divqu.o __remqu.o __divlu.o __remlu.o): \ + $(src)/$(ev6-y)divide.S FORCE + $(call if_changed_rule,as_o_S) diff --git a/arch/alpha/lib/callback_srm.S b/arch/alpha/lib/callback_srm.S index 8804bec2c644..36b63f295170 100644 --- a/arch/alpha/lib/callback_srm.S +++ b/arch/alpha/lib/callback_srm.S @@ -1,7 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/callback_srm.S */ +#include <linux/export.h> #include <asm/console.h> .text @@ -92,6 +94,10 @@ CALLBACK(reset_env, CCB_RESET_ENV, 4) CALLBACK(save_env, CCB_SAVE_ENV, 1) CALLBACK(pswitch, CCB_PSWITCH, 3) CALLBACK(bios_emul, CCB_BIOS_EMUL, 5) + +EXPORT_SYMBOL(callback_getenv) +EXPORT_SYMBOL(callback_setenv) +EXPORT_SYMBOL(callback_save_env) .data __alpha_using_srm: # For use by bootpheader diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c index 199f6efa83fa..27b2a9edf3cc 100644 --- a/arch/alpha/lib/checksum.c +++ b/arch/alpha/lib/checksum.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/lib/checksum.c * @@ -11,8 +12,10 @@ #include <linux/module.h> #include <linux/string.h> +#include <net/checksum.h> #include <asm/byteorder.h> +#include <asm/checksum.h> static inline unsigned short from64to16(unsigned long x) { @@ -42,19 +45,16 @@ static inline unsigned short from64to16(unsigned long x) * returns a 16-bit checksum, already complemented. */ __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) + __u32 len, __u8 proto, __wsum sum) { return (__force __sum16)~from64to16( (__force u64)saddr + (__force u64)daddr + (__force u64)sum + ((len + proto) << 8)); } +EXPORT_SYMBOL(csum_tcpudp_magic); __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, - unsigned short len, - unsigned short proto, - __wsum sum) + __u32 len, __u8 proto, __wsum sum) { unsigned long result; @@ -148,6 +148,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) { return (__force __sum16)~do_csum(iph,ihl*4); } +EXPORT_SYMBOL(ip_fast_csum); /* * computes the checksum of a memory block at buff, length len, @@ -182,3 +183,4 @@ __sum16 ip_compute_csum(const void *buff, int len) { return (__force __sum16)~from64to16(do_csum(buff,len)); } +EXPORT_SYMBOL(ip_compute_csum); diff --git a/arch/alpha/lib/clear_page.S b/arch/alpha/lib/clear_page.S index a221ae266e29..af70ee309a33 100644 --- a/arch/alpha/lib/clear_page.S +++ b/arch/alpha/lib/clear_page.S @@ -1,9 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/clear_page.S * * Zero an entire page. */ - +#include <linux/export.h> .text .align 4 .global clear_page @@ -37,3 +38,4 @@ clear_page: nop .end clear_page + EXPORT_SYMBOL(clear_page) diff --git a/arch/alpha/lib/clear_user.S b/arch/alpha/lib/clear_user.S index 8860316c1957..848eb60a0010 100644 --- a/arch/alpha/lib/clear_user.S +++ b/arch/alpha/lib/clear_user.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/clear_user.S * Contributed by Richard Henderson <rth@tamu.edu> @@ -8,22 +9,8 @@ * right "bytes left to zero" value (and that it is updated only _after_ * a successful copy). There is also some rather minor exception setup * stuff. - * - * NOTE! This is not directly C-callable, because the calling semantics - * are different: - * - * Inputs: - * length in $0 - * destination address in $6 - * exception pointer in $7 - * return address in $28 (exceptions expect it there) - * - * Outputs: - * bytes left to copy in $0 - * - * Clobbers: - * $1,$2,$3,$4,$5,$6 */ +#include <linux/export.h> /* Allow an exception for an insn; exit if we get one. */ #define EX(x,y...) \ @@ -37,62 +24,63 @@ .set noreorder .align 4 - .globl __do_clear_user - .ent __do_clear_user - .frame $30, 0, $28 + .globl __clear_user + .ent __clear_user + .frame $30, 0, $26 .prologue 0 $loop: and $1, 3, $4 # e0 : beq $4, 1f # .. e1 : -0: EX( stq_u $31, 0($6) ) # e0 : zero one word +0: EX( stq_u $31, 0($16) ) # e0 : zero one word subq $0, 8, $0 # .. e1 : subq $4, 1, $4 # e0 : - addq $6, 8, $6 # .. e1 : + addq $16, 8, $16 # .. e1 : bne $4, 0b # e1 : unop # : 1: bic $1, 3, $1 # e0 : beq $1, $tail # .. e1 : -2: EX( stq_u $31, 0($6) ) # e0 : zero four words +2: EX( stq_u $31, 0($16) ) # e0 : zero four words subq $0, 8, $0 # .. e1 : - EX( stq_u $31, 8($6) ) # e0 : + EX( stq_u $31, 8($16) ) # e0 : subq $0, 8, $0 # .. e1 : - EX( stq_u $31, 16($6) ) # e0 : + EX( stq_u $31, 16($16) ) # e0 : subq $0, 8, $0 # .. e1 : - EX( stq_u $31, 24($6) ) # e0 : + EX( stq_u $31, 24($16) ) # e0 : subq $0, 8, $0 # .. e1 : subq $1, 4, $1 # e0 : - addq $6, 32, $6 # .. e1 : + addq $16, 32, $16 # .. e1 : bne $1, 2b # e1 : $tail: bne $2, 1f # e1 : is there a tail to do? - ret $31, ($28), 1 # .. e1 : + ret $31, ($26), 1 # .. e1 : -1: EX( ldq_u $5, 0($6) ) # e0 : +1: EX( ldq_u $5, 0($16) ) # e0 : clr $0 # .. e1 : nop # e1 : mskqh $5, $0, $5 # e0 : - EX( stq_u $5, 0($6) ) # e0 : - ret $31, ($28), 1 # .. e1 : + EX( stq_u $5, 0($16) ) # e0 : + ret $31, ($26), 1 # .. e1 : -__do_clear_user: - and $6, 7, $4 # e0 : find dest misalignment +__clear_user: + and $17, $17, $0 + and $16, 7, $4 # e0 : find dest misalignment beq $0, $zerolength # .. e1 : addq $0, $4, $1 # e0 : bias counter and $1, 7, $2 # e1 : number of bytes in tail srl $1, 3, $1 # e0 : beq $4, $loop # .. e1 : - EX( ldq_u $5, 0($6) ) # e0 : load dst word to mask back in + EX( ldq_u $5, 0($16) ) # e0 : load dst word to mask back in beq $1, $oneword # .. e1 : sub-word store? - mskql $5, $6, $5 # e0 : take care of misaligned head - addq $6, 8, $6 # .. e1 : - EX( stq_u $5, -8($6) ) # e0 : + mskql $5, $16, $5 # e0 : take care of misaligned head + addq $16, 8, $16 # .. e1 : + EX( stq_u $5, -8($16) ) # e0 : addq $0, $4, $0 # .. e1 : bytes left -= 8 - misalignment subq $1, 1, $1 # e0 : subq $0, 8, $0 # .. e1 : @@ -100,14 +88,15 @@ __do_clear_user: unop # : $oneword: - mskql $5, $6, $4 # e0 : + mskql $5, $16, $4 # e0 : mskqh $5, $2, $5 # e0 : or $5, $4, $5 # e1 : - EX( stq_u $5, 0($6) ) # e0 : + EX( stq_u $5, 0($16) ) # e0 : clr $0 # .. e1 : $zerolength: $exception: - ret $31, ($28), 1 # .. e1 : + ret $31, ($26), 1 # .. e1 : - .end __do_clear_user + .end __clear_user + EXPORT_SYMBOL(__clear_user) diff --git a/arch/alpha/lib/copy_page.S b/arch/alpha/lib/copy_page.S index 9f3b97459cc6..1c444fdad9a5 100644 --- a/arch/alpha/lib/copy_page.S +++ b/arch/alpha/lib/copy_page.S @@ -1,9 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/copy_page.S * * Copy an entire page. */ - +#include <linux/export.h> .text .align 4 .global copy_page @@ -47,3 +48,4 @@ copy_page: nop .end copy_page + EXPORT_SYMBOL(copy_page) diff --git a/arch/alpha/lib/copy_user.S b/arch/alpha/lib/copy_user.S index 6f3fab9eb434..ef18faafcad6 100644 --- a/arch/alpha/lib/copy_user.S +++ b/arch/alpha/lib/copy_user.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/copy_user.S * @@ -9,23 +10,10 @@ * contains the right "bytes left to copy" value (and that it is updated * only _after_ a successful copy). There is also some rather minor * exception setup stuff.. - * - * NOTE! This is not directly C-callable, because the calling semantics are - * different: - * - * Inputs: - * length in $0 - * destination address in $6 - * source address in $7 - * return address in $28 - * - * Outputs: - * bytes left to copy in $0 - * - * Clobbers: - * $1,$2,$3,$4,$5,$6,$7 */ +#include <linux/export.h> + /* Allow an exception for an insn; exit if we get one. */ #define EXI(x,y...) \ 99: x,##y; \ @@ -47,58 +35,59 @@ .ent __copy_user __copy_user: .prologue 0 - and $6,7,$3 + mov $18,$0 + and $16,7,$3 beq $0,$35 beq $3,$36 subq $3,8,$3 .align 4 $37: - EXI( ldq_u $1,0($7) ) - EXO( ldq_u $2,0($6) ) - extbl $1,$7,$1 - mskbl $2,$6,$2 - insbl $1,$6,$1 + EXI( ldq_u $1,0($17) ) + EXO( ldq_u $2,0($16) ) + extbl $1,$17,$1 + mskbl $2,$16,$2 + insbl $1,$16,$1 addq $3,1,$3 bis $1,$2,$1 - EXO( stq_u $1,0($6) ) + EXO( stq_u $1,0($16) ) subq $0,1,$0 - addq $6,1,$6 - addq $7,1,$7 + addq $16,1,$16 + addq $17,1,$17 beq $0,$41 bne $3,$37 $36: - and $7,7,$1 + and $17,7,$1 bic $0,7,$4 beq $1,$43 beq $4,$48 - EXI( ldq_u $3,0($7) ) + EXI( ldq_u $3,0($17) ) .align 4 $50: - EXI( ldq_u $2,8($7) ) + EXI( ldq_u $2,8($17) ) subq $4,8,$4 - extql $3,$7,$3 - extqh $2,$7,$1 + extql $3,$17,$3 + extqh $2,$17,$1 bis $3,$1,$1 - EXO( stq $1,0($6) ) - addq $7,8,$7 + EXO( stq $1,0($16) ) + addq $17,8,$17 subq $0,8,$0 - addq $6,8,$6 + addq $16,8,$16 bis $2,$2,$3 bne $4,$50 $48: beq $0,$41 .align 4 $57: - EXI( ldq_u $1,0($7) ) - EXO( ldq_u $2,0($6) ) - extbl $1,$7,$1 - mskbl $2,$6,$2 - insbl $1,$6,$1 + EXI( ldq_u $1,0($17) ) + EXO( ldq_u $2,0($16) ) + extbl $1,$17,$1 + mskbl $2,$16,$2 + insbl $1,$16,$1 bis $1,$2,$1 - EXO( stq_u $1,0($6) ) + EXO( stq_u $1,0($16) ) subq $0,1,$0 - addq $6,1,$6 - addq $7,1,$7 + addq $16,1,$16 + addq $17,1,$17 bne $0,$57 br $31,$41 .align 4 @@ -106,40 +95,27 @@ $43: beq $4,$65 .align 4 $66: - EXI( ldq $1,0($7) ) + EXI( ldq $1,0($17) ) subq $4,8,$4 - EXO( stq $1,0($6) ) - addq $7,8,$7 + EXO( stq $1,0($16) ) + addq $17,8,$17 subq $0,8,$0 - addq $6,8,$6 + addq $16,8,$16 bne $4,$66 $65: beq $0,$41 - EXI( ldq $2,0($7) ) - EXO( ldq $1,0($6) ) + EXI( ldq $2,0($17) ) + EXO( ldq $1,0($16) ) mskql $2,$0,$2 mskqh $1,$0,$1 bis $2,$1,$2 - EXO( stq $2,0($6) ) + EXO( stq $2,0($16) ) bis $31,$31,$0 $41: $35: -$exitout: - ret $31,($28),1 - $exitin: - /* A stupid byte-by-byte zeroing of the rest of the output - buffer. This cures security holes by never leaving - random kernel data around to be copied elsewhere. */ - - mov $0,$1 -$101: - EXO ( ldq_u $2,0($6) ) - subq $1,1,$1 - mskbl $2,$6,$2 - EXO ( stq_u $2,0($6) ) - addq $6,1,$6 - bgt $1,$101 - ret $31,($28),1 +$exitout: + ret $31,($26),1 .end __copy_user +EXPORT_SYMBOL(__copy_user) diff --git a/arch/alpha/lib/csum_ipv6_magic.S b/arch/alpha/lib/csum_ipv6_magic.S index 2c2acb96deb6..273c426c3859 100644 --- a/arch/alpha/lib/csum_ipv6_magic.S +++ b/arch/alpha/lib/csum_ipv6_magic.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/csum_ipv6_magic.S * Contributed by Richard Henderson <rth@tamu.edu> @@ -12,6 +13,7 @@ * added by Ivan Kokshaysky <ink@jurassic.park.msu.ru> */ +#include <linux/export.h> .globl csum_ipv6_magic .align 4 .ent csum_ipv6_magic @@ -113,3 +115,4 @@ csum_ipv6_magic: ret # .. e1 : .end csum_ipv6_magic + EXPORT_SYMBOL(csum_ipv6_magic) diff --git a/arch/alpha/lib/csum_partial_copy.c b/arch/alpha/lib/csum_partial_copy.c index 40736da9bea8..4d180d96f09e 100644 --- a/arch/alpha/lib/csum_partial_copy.c +++ b/arch/alpha/lib/csum_partial_copy.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * csum_partial_copy - do IP checksumming and copy * @@ -11,7 +12,8 @@ #include <linux/types.h> #include <linux/string.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> +#include <net/checksum.h> #define ldq_u(x,y) \ @@ -38,38 +40,18 @@ __asm__ __volatile__("insql %1,%2,%0":"=r" (z):"r" (x),"r" (y)) #define insqh(x,y,z) \ __asm__ __volatile__("insqh %1,%2,%0":"=r" (z):"r" (x),"r" (y)) - -#define __get_user_u(x,ptr) \ +#define __get_word(insn,x,ptr) \ ({ \ long __guu_err; \ __asm__ __volatile__( \ - "1: ldq_u %0,%2\n" \ + "1: "#insn" %0,%2\n" \ "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - .\n" \ - " lda %0,2b-1b(%1)\n" \ - ".previous" \ + EXC(1b,2b,%0,%1) \ : "=r"(x), "=r"(__guu_err) \ : "m"(__m(ptr)), "1"(0)); \ __guu_err; \ }) -#define __put_user_u(x,ptr) \ -({ \ - long __puu_err; \ - __asm__ __volatile__( \ - "1: stq_u %2,%1\n" \ - "2:\n" \ - ".section __ex_table,\"a\"\n" \ - " .long 1b - ." \ - " lda $31,2b-1b(%0)\n" \ - ".previous" \ - : "=r"(__puu_err) \ - : "m"(__m(addr)), "rJ"(x), "0"(0)); \ - __puu_err; \ -}) - - static inline unsigned short from64to16(unsigned long x) { /* Using extract instructions is a bit more efficient @@ -100,15 +82,15 @@ static inline unsigned short from64to16(unsigned long x) */ static inline unsigned long csum_partial_cfu_aligned(const unsigned long __user *src, unsigned long *dst, - long len, unsigned long checksum, - int *errp) + long len) { + unsigned long checksum = ~0U; unsigned long carry = 0; - int err = 0; while (len >= 0) { unsigned long word; - err |= __get_user(word, src); + if (__get_word(ldq, word, src)) + return 0; checksum += carry; src++; checksum += word; @@ -121,7 +103,8 @@ csum_partial_cfu_aligned(const unsigned long __user *src, unsigned long *dst, checksum += carry; if (len) { unsigned long word, tmp; - err |= __get_user(word, src); + if (__get_word(ldq, word, src)) + return 0; tmp = *dst; mskql(word, len, word); checksum += word; @@ -130,7 +113,6 @@ csum_partial_cfu_aligned(const unsigned long __user *src, unsigned long *dst, *dst = word | tmp; checksum += carry; } - if (err) *errp = err; return checksum; } @@ -142,20 +124,21 @@ static inline unsigned long csum_partial_cfu_dest_aligned(const unsigned long __user *src, unsigned long *dst, unsigned long soff, - long len, unsigned long checksum, - int *errp) + long len) { unsigned long first; unsigned long word, carry; unsigned long lastsrc = 7+len+(unsigned long)src; - int err = 0; + unsigned long checksum = ~0U; - err |= __get_user_u(first,src); + if (__get_word(ldq_u, first,src)) + return 0; carry = 0; while (len >= 0) { unsigned long second; - err |= __get_user_u(second, src+1); + if (__get_word(ldq_u, second, src+1)) + return 0; extql(first, soff, word); len -= 8; src++; @@ -173,7 +156,8 @@ csum_partial_cfu_dest_aligned(const unsigned long __user *src, if (len) { unsigned long tmp; unsigned long second; - err |= __get_user_u(second, lastsrc); + if (__get_word(ldq_u, second, lastsrc)) + return 0; tmp = *dst; extql(first, soff, word); extqh(second, soff, first); @@ -185,7 +169,6 @@ csum_partial_cfu_dest_aligned(const unsigned long __user *src, *dst = word | tmp; checksum += carry; } - if (err) *errp = err; return checksum; } @@ -196,18 +179,18 @@ static inline unsigned long csum_partial_cfu_src_aligned(const unsigned long __user *src, unsigned long *dst, unsigned long doff, - long len, unsigned long checksum, - unsigned long partial_dest, - int *errp) + long len, + unsigned long partial_dest) { unsigned long carry = 0; unsigned long word; unsigned long second_dest; - int err = 0; + unsigned long checksum = ~0U; mskql(partial_dest, doff, partial_dest); while (len >= 0) { - err |= __get_user(word, src); + if (__get_word(ldq, word, src)) + return 0; len -= 8; insql(word, doff, second_dest); checksum += carry; @@ -221,7 +204,8 @@ csum_partial_cfu_src_aligned(const unsigned long __user *src, len += 8; if (len) { checksum += carry; - err |= __get_user(word, src); + if (__get_word(ldq, word, src)) + return 0; mskql(word, len, word); len -= 8; checksum += word; @@ -242,7 +226,6 @@ csum_partial_cfu_src_aligned(const unsigned long __user *src, stq_u(partial_dest | second_dest, dst); out: checksum += carry; - if (err) *errp = err; return checksum; } @@ -254,23 +237,23 @@ static inline unsigned long csum_partial_cfu_unaligned(const unsigned long __user * src, unsigned long * dst, unsigned long soff, unsigned long doff, - long len, unsigned long checksum, - unsigned long partial_dest, - int *errp) + long len, unsigned long partial_dest) { unsigned long carry = 0; unsigned long first; unsigned long lastsrc; - int err = 0; + unsigned long checksum = ~0U; - err |= __get_user_u(first, src); + if (__get_word(ldq_u, first, src)) + return 0; lastsrc = 7+len+(unsigned long)src; mskql(partial_dest, doff, partial_dest); while (len >= 0) { unsigned long second, word; unsigned long second_dest; - err |= __get_user_u(second, src+1); + if (__get_word(ldq_u, second, src+1)) + return 0; extql(first, soff, word); checksum += carry; len -= 8; @@ -291,7 +274,8 @@ csum_partial_cfu_unaligned(const unsigned long __user * src, unsigned long second, word; unsigned long second_dest; - err |= __get_user_u(second, lastsrc); + if (__get_word(ldq_u, second, lastsrc)) + return 0; extql(first, soff, word); extqh(second, soff, first); word |= first; @@ -312,7 +296,8 @@ csum_partial_cfu_unaligned(const unsigned long __user * src, unsigned long second, word; unsigned long second_dest; - err |= __get_user_u(second, lastsrc); + if (__get_word(ldq_u, second, lastsrc)) + return 0; extql(first, soff, word); extqh(second, soff, first); word |= first; @@ -325,54 +310,54 @@ csum_partial_cfu_unaligned(const unsigned long __user * src, stq_u(partial_dest | word | second_dest, dst); checksum += carry; } - if (err) *errp = err; return checksum; } -__wsum -csum_partial_copy_from_user(const void __user *src, void *dst, int len, - __wsum sum, int *errp) +static __wsum __csum_and_copy(const void __user *src, void *dst, int len) { - unsigned long checksum = (__force u32) sum; unsigned long soff = 7 & (unsigned long) src; unsigned long doff = 7 & (unsigned long) dst; - - if (len) { - if (!doff) { - if (!soff) - checksum = csum_partial_cfu_aligned( - (const unsigned long __user *) src, - (unsigned long *) dst, - len-8, checksum, errp); - else - checksum = csum_partial_cfu_dest_aligned( - (const unsigned long __user *) src, - (unsigned long *) dst, - soff, len-8, checksum, errp); - } else { - unsigned long partial_dest; - ldq_u(partial_dest, dst); - if (!soff) - checksum = csum_partial_cfu_src_aligned( - (const unsigned long __user *) src, - (unsigned long *) dst, - doff, len-8, checksum, - partial_dest, errp); - else - checksum = csum_partial_cfu_unaligned( - (const unsigned long __user *) src, - (unsigned long *) dst, - soff, doff, len-8, checksum, - partial_dest, errp); - } - checksum = from64to16 (checksum); + unsigned long checksum; + + if (!doff) { + if (!soff) + checksum = csum_partial_cfu_aligned( + (const unsigned long __user *) src, + (unsigned long *) dst, len-8); + else + checksum = csum_partial_cfu_dest_aligned( + (const unsigned long __user *) src, + (unsigned long *) dst, + soff, len-8); + } else { + unsigned long partial_dest; + ldq_u(partial_dest, dst); + if (!soff) + checksum = csum_partial_cfu_src_aligned( + (const unsigned long __user *) src, + (unsigned long *) dst, + doff, len-8, partial_dest); + else + checksum = csum_partial_cfu_unaligned( + (const unsigned long __user *) src, + (unsigned long *) dst, + soff, doff, len-8, partial_dest); } - return (__force __wsum)checksum; + return (__force __wsum)from64to16 (checksum); +} + +__wsum +csum_and_copy_from_user(const void __user *src, void *dst, int len) +{ + if (!access_ok(src, len)) + return 0; + return __csum_and_copy(src, dst, len); } __wsum -csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) +csum_partial_copy_nocheck(const void *src, void *dst, int len) { - return csum_partial_copy_from_user((__force const void __user *)src, - dst, len, sum, NULL); + return __csum_and_copy((__force const void __user *)src, + dst, len); } +EXPORT_SYMBOL(csum_partial_copy_nocheck); diff --git a/arch/alpha/lib/dbg_current.S b/arch/alpha/lib/dbg_current.S index e6d071015f9b..be6612131277 100644 --- a/arch/alpha/lib/dbg_current.S +++ b/arch/alpha/lib/dbg_current.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/dbg_current.S * Contributed by Richard Henderson (rth@cygnus.com) diff --git a/arch/alpha/lib/dbg_stackcheck.S b/arch/alpha/lib/dbg_stackcheck.S index 78f6b924ad8f..b3b6fc94f7f3 100644 --- a/arch/alpha/lib/dbg_stackcheck.S +++ b/arch/alpha/lib/dbg_stackcheck.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/dbg_stackcheck.S * Contributed by Richard Henderson (rth@tamu.edu) diff --git a/arch/alpha/lib/dbg_stackkill.S b/arch/alpha/lib/dbg_stackkill.S index c1e40a1a43d5..6d9197e52a42 100644 --- a/arch/alpha/lib/dbg_stackkill.S +++ b/arch/alpha/lib/dbg_stackkill.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/dbg_stackkill.S * Contributed by Richard Henderson (rth@cygnus.com) diff --git a/arch/alpha/lib/dec_and_lock.c b/arch/alpha/lib/dec_and_lock.c deleted file mode 100644 index f9f5fe830e9f..000000000000 --- a/arch/alpha/lib/dec_and_lock.c +++ /dev/null @@ -1,41 +0,0 @@ -/* - * arch/alpha/lib/dec_and_lock.c - * - * ll/sc version of atomic_dec_and_lock() - * - */ - -#include <linux/spinlock.h> -#include <linux/atomic.h> - - asm (".text \n\ - .global _atomic_dec_and_lock \n\ - .ent _atomic_dec_and_lock \n\ - .align 4 \n\ -_atomic_dec_and_lock: \n\ - .prologue 0 \n\ -1: ldl_l $1, 0($16) \n\ - subl $1, 1, $1 \n\ - beq $1, 2f \n\ - stl_c $1, 0($16) \n\ - beq $1, 4f \n\ - mb \n\ - clr $0 \n\ - ret \n\ -2: br $29, 3f \n\ -3: ldgp $29, 0($29) \n\ - br $atomic_dec_and_lock_1..ng \n\ - .subsection 2 \n\ -4: br 1b \n\ - .previous \n\ - .end _atomic_dec_and_lock"); - -static int __used atomic_dec_and_lock_1(atomic_t *atomic, spinlock_t *lock) -{ - /* Slow path */ - spin_lock(lock); - if (atomic_dec_and_test(atomic)) - return 1; - spin_unlock(lock); - return 0; -} diff --git a/arch/alpha/lib/divide.S b/arch/alpha/lib/divide.S index 2d1a0484a99e..db01840d76ec 100644 --- a/arch/alpha/lib/divide.S +++ b/arch/alpha/lib/divide.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/divide.S * @@ -45,6 +46,7 @@ * $28 - compare status */ +#include <linux/export.h> #define halt .long 0 /* @@ -151,6 +153,7 @@ ufunction: addq $30,STACK,$30 ret $31,($23),1 .end ufunction +EXPORT_SYMBOL(ufunction) /* * Uhh.. Ugly signed division. I'd rather not have it at all, but @@ -193,3 +196,4 @@ sfunction: addq $30,STACK,$30 ret $31,($23),1 .end sfunction +EXPORT_SYMBOL(sfunction) diff --git a/arch/alpha/lib/ev6-clear_page.S b/arch/alpha/lib/ev6-clear_page.S index adf4f7be0e2b..a534d9ff7161 100644 --- a/arch/alpha/lib/ev6-clear_page.S +++ b/arch/alpha/lib/ev6-clear_page.S @@ -1,9 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-clear_page.S * * Zero an entire page. */ - +#include <linux/export.h> .text .align 4 .global clear_page @@ -52,3 +53,4 @@ clear_page: nop .end clear_page + EXPORT_SYMBOL(clear_page) diff --git a/arch/alpha/lib/ev6-clear_user.S b/arch/alpha/lib/ev6-clear_user.S index 4f42a16b7f53..af776cc45f91 100644 --- a/arch/alpha/lib/ev6-clear_user.S +++ b/arch/alpha/lib/ev6-clear_user.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-clear_user.S * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com> @@ -9,21 +10,6 @@ * a successful copy). There is also some rather minor exception setup * stuff. * - * NOTE! This is not directly C-callable, because the calling semantics - * are different: - * - * Inputs: - * length in $0 - * destination address in $6 - * exception pointer in $7 - * return address in $28 (exceptions expect it there) - * - * Outputs: - * bytes left to copy in $0 - * - * Clobbers: - * $1,$2,$3,$4,$5,$6 - * * Much of the information about 21264 scheduling/coding comes from: * Compiler Writer's Guide for the Alpha 21264 * abbreviated as 'CWG' in other comments here @@ -43,6 +29,7 @@ * want to leave a hole (and we also want to avoid repeating lots of work) */ +#include <linux/export.h> /* Allow an exception for an insn; exit if we get one. */ #define EX(x,y...) \ 99: x,##y; \ @@ -55,14 +42,15 @@ .set noreorder .align 4 - .globl __do_clear_user - .ent __do_clear_user - .frame $30, 0, $28 + .globl __clear_user + .ent __clear_user + .frame $30, 0, $26 .prologue 0 # Pipeline info : Slotting & Comments -__do_clear_user: - and $6, 7, $4 # .. E .. .. : find dest head misalignment +__clear_user: + and $17, $17, $0 + and $16, 7, $4 # .. E .. .. : find dest head misalignment beq $0, $zerolength # U .. .. .. : U L U L addq $0, $4, $1 # .. .. .. E : bias counter @@ -74,14 +62,14 @@ __do_clear_user: /* * Head is not aligned. Write (8 - $4) bytes to head of destination - * This means $6 is known to be misaligned + * This means $16 is known to be misaligned */ - EX( ldq_u $5, 0($6) ) # .. .. .. L : load dst word to mask back in + EX( ldq_u $5, 0($16) ) # .. .. .. L : load dst word to mask back in beq $1, $onebyte # .. .. U .. : sub-word store? - mskql $5, $6, $5 # .. U .. .. : take care of misaligned head - addq $6, 8, $6 # E .. .. .. : L U U L + mskql $5, $16, $5 # .. U .. .. : take care of misaligned head + addq $16, 8, $16 # E .. .. .. : L U U L - EX( stq_u $5, -8($6) ) # .. .. .. L : + EX( stq_u $5, -8($16) ) # .. .. .. L : subq $1, 1, $1 # .. .. E .. : addq $0, $4, $0 # .. E .. .. : bytes left -= 8 - misalignment subq $0, 8, $0 # E .. .. .. : U L U L @@ -92,11 +80,11 @@ __do_clear_user: * values upon initial entry to the loop * $1 is number of quadwords to clear (zero is a valid value) * $2 is number of trailing bytes (0..7) ($2 never used...) - * $6 is known to be aligned 0mod8 + * $16 is known to be aligned 0mod8 */ $headalign: subq $1, 16, $4 # .. .. .. E : If < 16, we can not use the huge loop - and $6, 0x3f, $2 # .. .. E .. : Forward work for huge loop + and $16, 0x3f, $2 # .. .. E .. : Forward work for huge loop subq $2, 0x40, $3 # .. E .. .. : bias counter (huge loop) blt $4, $trailquad # U .. .. .. : U L U L @@ -113,21 +101,21 @@ $headalign: beq $3, $bigalign # U .. .. .. : U L U L : Aligned 0mod64 $alignmod64: - EX( stq_u $31, 0($6) ) # .. .. .. L + EX( stq_u $31, 0($16) ) # .. .. .. L addq $3, 8, $3 # .. .. E .. subq $0, 8, $0 # .. E .. .. nop # E .. .. .. : U L U L nop # .. .. .. E subq $1, 1, $1 # .. .. E .. - addq $6, 8, $6 # .. E .. .. + addq $16, 8, $16 # .. E .. .. blt $3, $alignmod64 # U .. .. .. : U L U L $bigalign: /* * $0 is the number of bytes left * $1 is the number of quads left - * $6 is aligned 0mod64 + * $16 is aligned 0mod64 * we know that we'll be taking a minimum of one trip through * CWG Section 3.7.6: do not expect a sustained store rate of > 1/cycle * We are _not_ going to update $0 after every single store. That @@ -144,39 +132,39 @@ $bigalign: nop # E : nop # E : nop # E : - bis $6,$6,$3 # E : U L U L : Initial wh64 address is dest + bis $16,$16,$3 # E : U L U L : Initial wh64 address is dest /* This might actually help for the current trip... */ $do_wh64: wh64 ($3) # .. .. .. L1 : memory subsystem hint subq $1, 16, $4 # .. .. E .. : Forward calculation - repeat the loop? - EX( stq_u $31, 0($6) ) # .. L .. .. + EX( stq_u $31, 0($16) ) # .. L .. .. subq $0, 8, $0 # E .. .. .. : U L U L - addq $6, 128, $3 # E : Target address of wh64 - EX( stq_u $31, 8($6) ) # L : - EX( stq_u $31, 16($6) ) # L : + addq $16, 128, $3 # E : Target address of wh64 + EX( stq_u $31, 8($16) ) # L : + EX( stq_u $31, 16($16) ) # L : subq $0, 16, $0 # E : U L L U nop # E : - EX( stq_u $31, 24($6) ) # L : - EX( stq_u $31, 32($6) ) # L : + EX( stq_u $31, 24($16) ) # L : + EX( stq_u $31, 32($16) ) # L : subq $0, 168, $5 # E : U L L U : two trips through the loop left? /* 168 = 192 - 24, since we've already completed some stores */ subq $0, 16, $0 # E : - EX( stq_u $31, 40($6) ) # L : - EX( stq_u $31, 48($6) ) # L : - cmovlt $5, $6, $3 # E : U L L U : Latency 2, extra mapping cycle + EX( stq_u $31, 40($16) ) # L : + EX( stq_u $31, 48($16) ) # L : + cmovlt $5, $16, $3 # E : U L L U : Latency 2, extra mapping cycle subq $1, 8, $1 # E : subq $0, 16, $0 # E : - EX( stq_u $31, 56($6) ) # L : + EX( stq_u $31, 56($16) ) # L : nop # E : U L U L nop # E : subq $0, 8, $0 # E : - addq $6, 64, $6 # E : + addq $16, 64, $16 # E : bge $4, $do_wh64 # U : U L U L $trailquad: @@ -189,14 +177,14 @@ $trailquad: beq $1, $trailbytes # U .. .. .. : U L U L : Only 0..7 bytes to go $onequad: - EX( stq_u $31, 0($6) ) # .. .. .. L + EX( stq_u $31, 0($16) ) # .. .. .. L subq $1, 1, $1 # .. .. E .. subq $0, 8, $0 # .. E .. .. nop # E .. .. .. : U L U L nop # .. .. .. E nop # .. .. E .. - addq $6, 8, $6 # .. E .. .. + addq $16, 8, $16 # .. E .. .. bgt $1, $onequad # U .. .. .. : U L U L # We have an unknown number of bytes left to go. @@ -210,9 +198,9 @@ $trailbytes: # so we will use $0 as the loop counter # We know for a fact that $0 > 0 zero due to previous context $onebyte: - EX( stb $31, 0($6) ) # .. .. .. L + EX( stb $31, 0($16) ) # .. .. .. L subq $0, 1, $0 # .. .. E .. : - addq $6, 1, $6 # .. E .. .. : + addq $16, 1, $16 # .. E .. .. : bgt $0, $onebyte # U .. .. .. : U L U L $zerolength: @@ -220,6 +208,6 @@ $exception: # Destination for exception recovery(?) nop # .. .. .. E : nop # .. .. E .. : nop # .. E .. .. : - ret $31, ($28), 1 # L0 .. .. .. : L U L U - .end __do_clear_user - + ret $31, ($26), 1 # L0 .. .. .. : L U L U + .end __clear_user + EXPORT_SYMBOL(__clear_user) diff --git a/arch/alpha/lib/ev6-copy_page.S b/arch/alpha/lib/ev6-copy_page.S index b789db192754..36be5113b7b7 100644 --- a/arch/alpha/lib/ev6-copy_page.S +++ b/arch/alpha/lib/ev6-copy_page.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-copy_page.S * @@ -56,7 +57,7 @@ destination pages are in the dcache, but it is my guess that this is less important than the dcache miss case. */ - +#include <linux/export.h> .text .align 4 .global copy_page @@ -201,3 +202,4 @@ copy_page: nop .end copy_page + EXPORT_SYMBOL(copy_page) diff --git a/arch/alpha/lib/ev6-copy_user.S b/arch/alpha/lib/ev6-copy_user.S index db42ffe9c350..b9b19710c364 100644 --- a/arch/alpha/lib/ev6-copy_user.S +++ b/arch/alpha/lib/ev6-copy_user.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-copy_user.S * @@ -12,21 +13,6 @@ * only _after_ a successful copy). There is also some rather minor * exception setup stuff.. * - * NOTE! This is not directly C-callable, because the calling semantics are - * different: - * - * Inputs: - * length in $0 - * destination address in $6 - * source address in $7 - * return address in $28 - * - * Outputs: - * bytes left to copy in $0 - * - * Clobbers: - * $1,$2,$3,$4,$5,$6,$7 - * * Much of the information about 21264 scheduling/coding comes from: * Compiler Writer's Guide for the Alpha 21264 * abbreviated as 'CWG' in other comments here @@ -37,6 +23,7 @@ * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1 */ +#include <linux/export.h> /* Allow an exception for an insn; exit if we get one. */ #define EXI(x,y...) \ 99: x,##y; \ @@ -59,10 +46,12 @@ # Pipeline info: Slotting & Comments __copy_user: .prologue 0 - subq $0, 32, $1 # .. E .. .. : Is this going to be a small copy? - beq $0, $zerolength # U .. .. .. : U L U L + mov $18, $0 # .. .. .. E + subq $18, 32, $1 # .. .. E. .. : Is this going to be a small copy? + nop # .. E .. .. + beq $18, $zerolength # U .. .. .. : U L U L - and $6,7,$3 # .. .. .. E : is leading dest misalignment + and $16,7,$3 # .. .. .. E : is leading dest misalignment ble $1, $onebyteloop # .. .. U .. : 1st branch : small amount of data beq $3, $destaligned # .. U .. .. : 2nd (one cycle fetcher stall) subq $3, 8, $3 # E .. .. .. : L U U L : trip counter @@ -72,17 +61,17 @@ __copy_user: * We know we have at least one trip through this loop */ $aligndest: - EXI( ldbu $1,0($7) ) # .. .. .. L : Keep loads separate from stores - addq $6,1,$6 # .. .. E .. : Section 3.8 in the CWG + EXI( ldbu $1,0($17) ) # .. .. .. L : Keep loads separate from stores + addq $16,1,$16 # .. .. E .. : Section 3.8 in the CWG addq $3,1,$3 # .. E .. .. : nop # E .. .. .. : U L U L /* - * the -1 is to compensate for the inc($6) done in a previous quadpack + * the -1 is to compensate for the inc($16) done in a previous quadpack * which allows us zero dependencies within either quadpack in the loop */ - EXO( stb $1,-1($6) ) # .. .. .. L : - addq $7,1,$7 # .. .. E .. : Section 3.8 in the CWG + EXO( stb $1,-1($16) ) # .. .. .. L : + addq $17,1,$17 # .. .. E .. : Section 3.8 in the CWG subq $0,1,$0 # .. E .. .. : bne $3, $aligndest # U .. .. .. : U L U L @@ -91,29 +80,29 @@ $aligndest: * If we arrived via branch, we have a minimum of 32 bytes */ $destaligned: - and $7,7,$1 # .. .. .. E : Check _current_ source alignment + and $17,7,$1 # .. .. .. E : Check _current_ source alignment bic $0,7,$4 # .. .. E .. : number bytes as a quadword loop - EXI( ldq_u $3,0($7) ) # .. L .. .. : Forward fetch for fallthrough code + EXI( ldq_u $3,0($17) ) # .. L .. .. : Forward fetch for fallthrough code beq $1,$quadaligned # U .. .. .. : U L U L /* - * In the worst case, we've just executed an ldq_u here from 0($7) + * In the worst case, we've just executed an ldq_u here from 0($17) * and we'll repeat it once if we take the branch */ /* Misaligned quadword loop - not unrolled. Leave it that way. */ $misquad: - EXI( ldq_u $2,8($7) ) # .. .. .. L : + EXI( ldq_u $2,8($17) ) # .. .. .. L : subq $4,8,$4 # .. .. E .. : - extql $3,$7,$3 # .. U .. .. : - extqh $2,$7,$1 # U .. .. .. : U U L L + extql $3,$17,$3 # .. U .. .. : + extqh $2,$17,$1 # U .. .. .. : U U L L bis $3,$1,$1 # .. .. .. E : - EXO( stq $1,0($6) ) # .. .. L .. : - addq $7,8,$7 # .. E .. .. : + EXO( stq $1,0($16) ) # .. .. L .. : + addq $17,8,$17 # .. E .. .. : subq $0,8,$0 # E .. .. .. : U L L U - addq $6,8,$6 # .. .. .. E : + addq $16,8,$16 # .. .. .. E : bis $2,$2,$3 # .. .. E .. : nop # .. E .. .. : bne $4,$misquad # U .. .. .. : U L U L @@ -124,8 +113,8 @@ $misquad: beq $0,$zerolength # U .. .. .. : U L U L /* We know we have at least one trip through the byte loop */ - EXI ( ldbu $2,0($7) ) # .. .. .. L : No loads in the same quad - addq $6,1,$6 # .. .. E .. : as the store (Section 3.8 in CWG) + EXI ( ldbu $2,0($17) ) # .. .. .. L : No loads in the same quad + addq $16,1,$16 # .. .. E .. : as the store (Section 3.8 in CWG) nop # .. E .. .. : br $31, $dirtyentry # L0 .. .. .. : L U U L /* Do the trailing byte loop load, then hop into the store part of the loop */ @@ -135,8 +124,8 @@ $misquad: * Based upon the usage context, it's worth the effort to unroll this loop * $0 - number of bytes to be moved * $4 - number of bytes to move as quadwords - * $6 is current destination address - * $7 is current source address + * $16 is current destination address + * $17 is current source address */ $quadaligned: subq $4, 32, $2 # .. .. .. E : do not unroll for small stuff @@ -154,29 +143,29 @@ $quadaligned: * instruction memory hint instruction). */ $unroll4: - EXI( ldq $1,0($7) ) # .. .. .. L - EXI( ldq $2,8($7) ) # .. .. L .. + EXI( ldq $1,0($17) ) # .. .. .. L + EXI( ldq $2,8($17) ) # .. .. L .. subq $4,32,$4 # .. E .. .. nop # E .. .. .. : U U L L - addq $7,16,$7 # .. .. .. E - EXO( stq $1,0($6) ) # .. .. L .. - EXO( stq $2,8($6) ) # .. L .. .. + addq $17,16,$17 # .. .. .. E + EXO( stq $1,0($16) ) # .. .. L .. + EXO( stq $2,8($16) ) # .. L .. .. subq $0,16,$0 # E .. .. .. : U L L U - addq $6,16,$6 # .. .. .. E - EXI( ldq $1,0($7) ) # .. .. L .. - EXI( ldq $2,8($7) ) # .. L .. .. + addq $16,16,$16 # .. .. .. E + EXI( ldq $1,0($17) ) # .. .. L .. + EXI( ldq $2,8($17) ) # .. L .. .. subq $4, 32, $3 # E .. .. .. : U U L L : is there enough for another trip? - EXO( stq $1,0($6) ) # .. .. .. L - EXO( stq $2,8($6) ) # .. .. L .. + EXO( stq $1,0($16) ) # .. .. .. L + EXO( stq $2,8($16) ) # .. .. L .. subq $0,16,$0 # .. E .. .. - addq $7,16,$7 # E .. .. .. : U L L U + addq $17,16,$17 # E .. .. .. : U L L U nop # .. .. .. E nop # .. .. E .. - addq $6,16,$6 # .. E .. .. + addq $16,16,$16 # .. E .. .. bgt $3,$unroll4 # U .. .. .. : U L U L nop @@ -185,14 +174,14 @@ $unroll4: beq $4, $noquads $onequad: - EXI( ldq $1,0($7) ) + EXI( ldq $1,0($17) ) subq $4,8,$4 - addq $7,8,$7 + addq $17,8,$17 nop - EXO( stq $1,0($6) ) + EXO( stq $1,0($16) ) subq $0,8,$0 - addq $6,8,$6 + addq $16,8,$16 bne $4,$onequad $noquads: @@ -206,54 +195,33 @@ $noquads: * There's no point in doing a lot of complex alignment calculations to try to * to quadword stuff for a small amount of data. * $0 - remaining number of bytes left to copy - * $6 - current dest addr - * $7 - current source addr + * $16 - current dest addr + * $17 - current source addr */ $onebyteloop: - EXI ( ldbu $2,0($7) ) # .. .. .. L : No loads in the same quad - addq $6,1,$6 # .. .. E .. : as the store (Section 3.8 in CWG) + EXI ( ldbu $2,0($17) ) # .. .. .. L : No loads in the same quad + addq $16,1,$16 # .. .. E .. : as the store (Section 3.8 in CWG) nop # .. E .. .. : nop # E .. .. .. : U L U L $dirtyentry: /* - * the -1 is to compensate for the inc($6) done in a previous quadpack + * the -1 is to compensate for the inc($16) done in a previous quadpack * which allows us zero dependencies within either quadpack in the loop */ - EXO ( stb $2,-1($6) ) # .. .. .. L : - addq $7,1,$7 # .. .. E .. : quadpack as the load + EXO ( stb $2,-1($16) ) # .. .. .. L : + addq $17,1,$17 # .. .. E .. : quadpack as the load subq $0,1,$0 # .. E .. .. : change count _after_ copy bgt $0,$onebyteloop # U .. .. .. : U L U L $zerolength: +$exitin: $exitout: # Destination for exception recovery(?) nop # .. .. .. E nop # .. .. E .. nop # .. E .. .. - ret $31,($28),1 # L0 .. .. .. : L U L U - -$exitin: - - /* A stupid byte-by-byte zeroing of the rest of the output - buffer. This cures security holes by never leaving - random kernel data around to be copied elsewhere. */ - - nop - nop - nop - mov $0,$1 - -$101: - EXO ( stb $31,0($6) ) # L - subq $1,1,$1 # E - addq $6,1,$6 # E - bgt $1,$101 # U - - nop - nop - nop - ret $31,($28),1 # L0 + ret $31,($26),1 # L0 .. .. .. : L U L U .end __copy_user - + EXPORT_SYMBOL(__copy_user) diff --git a/arch/alpha/lib/ev6-csum_ipv6_magic.S b/arch/alpha/lib/ev6-csum_ipv6_magic.S index fc0bc399f872..2ee548be98e3 100644 --- a/arch/alpha/lib/ev6-csum_ipv6_magic.S +++ b/arch/alpha/lib/ev6-csum_ipv6_magic.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-csum_ipv6_magic.S * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com> @@ -52,6 +53,7 @@ * may cause additional delay in rare cases (load-load replay traps). */ +#include <linux/export.h> .globl csum_ipv6_magic .align 4 .ent csum_ipv6_magic @@ -148,3 +150,4 @@ csum_ipv6_magic: ret # L0 : L U L U .end csum_ipv6_magic + EXPORT_SYMBOL(csum_ipv6_magic) diff --git a/arch/alpha/lib/ev6-divide.S b/arch/alpha/lib/ev6-divide.S index 2a82b9be93fa..b73a6d26362e 100644 --- a/arch/alpha/lib/ev6-divide.S +++ b/arch/alpha/lib/ev6-divide.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-divide.S * @@ -55,6 +56,7 @@ * Try not to change the actual algorithm if possible for consistency. */ +#include <linux/export.h> #define halt .long 0 /* @@ -205,6 +207,7 @@ ufunction: addq $30,STACK,$30 # E : ret $31,($23),1 # L0 : L U U L .end ufunction +EXPORT_SYMBOL(ufunction) /* * Uhh.. Ugly signed division. I'd rather not have it at all, but @@ -257,3 +260,4 @@ sfunction: addq $30,STACK,$30 # E : ret $31,($23),1 # L0 : L U U L .end sfunction +EXPORT_SYMBOL(sfunction) diff --git a/arch/alpha/lib/ev6-memchr.S b/arch/alpha/lib/ev6-memchr.S index 1a5f71b9d8b1..f75ba43e61e3 100644 --- a/arch/alpha/lib/ev6-memchr.S +++ b/arch/alpha/lib/ev6-memchr.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-memchr.S * @@ -27,7 +28,7 @@ * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1 * Try not to change the actual algorithm if possible for consistency. */ - +#include <linux/export.h> .set noreorder .set noat @@ -189,3 +190,4 @@ $not_found: ret # L0 : .end memchr + EXPORT_SYMBOL(memchr) diff --git a/arch/alpha/lib/ev6-memcpy.S b/arch/alpha/lib/ev6-memcpy.S index 52b37b0f2af5..3ef43c26c8af 100644 --- a/arch/alpha/lib/ev6-memcpy.S +++ b/arch/alpha/lib/ev6-memcpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-memcpy.S * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com> @@ -19,7 +20,7 @@ * Temp usage notes: * $1,$2, - scratch */ - +#include <linux/export.h> .set noreorder .set noat @@ -242,6 +243,7 @@ $nomoredata: nop # E : .end memcpy + EXPORT_SYMBOL(memcpy) /* For backwards module compatibility. */ __memcpy = memcpy diff --git a/arch/alpha/lib/ev6-memset.S b/arch/alpha/lib/ev6-memset.S index d8b94e1c7fca..89d7809da4cc 100644 --- a/arch/alpha/lib/ev6-memset.S +++ b/arch/alpha/lib/ev6-memset.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-memset.S * @@ -17,7 +18,7 @@ * The algorithm for the leading and trailing quadwords remains the same, * however the loop has been unrolled to enable better memory throughput, * and the code has been replicated for each of the entry points: __memset - * and __memsetw to permit better scheduling to eliminate the stalling + * and __memset16 to permit better scheduling to eliminate the stalling * encountered during the mask replication. * A future enhancement might be to put in a byte store loop for really * small (say < 32 bytes) memset()s. Whether or not that change would be @@ -26,18 +27,19 @@ * as fixes will need to be made in multiple places. The performance gain * is worth it. */ - +#include <linux/export.h> .set noat .set noreorder .text + .globl memset .globl __memset - .globl __memsetw + .globl ___memset + .globl __memset16 .globl __constant_c_memset - .globl memset - .ent __memset + .ent ___memset .align 5 -__memset: +___memset: .frame $30,0,$26,0 .prologue 0 @@ -227,7 +229,8 @@ end_b: nop nop ret $31,($26),1 # L0 : - .end __memset + .end ___memset + EXPORT_SYMBOL(___memset) /* * This is the original body of code, prior to replication and @@ -405,15 +408,16 @@ end: nop ret $31,($26),1 # L0 : .end __constant_c_memset + EXPORT_SYMBOL(__constant_c_memset) /* * This is a replicant of the __constant_c_memset code, rescheduled * to mask stalls. Note that entry point names also had to change */ .align 5 - .ent __memsetw + .ent __memset16 -__memsetw: +__memset16: .frame $30,0,$26,0 .prologue 0 @@ -592,6 +596,10 @@ end_w: nop ret $31,($26),1 # L0 : - .end __memsetw + .end __memset16 + EXPORT_SYMBOL(__memset16) -memset = __memset +memset = ___memset +__memset = ___memset + EXPORT_SYMBOL(memset) + EXPORT_SYMBOL(__memset) diff --git a/arch/alpha/lib/ev6-stxcpy.S b/arch/alpha/lib/ev6-stxcpy.S index 4643ff2ffc8d..65f5f7310d80 100644 --- a/arch/alpha/lib/ev6-stxcpy.S +++ b/arch/alpha/lib/ev6-stxcpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-stxcpy.S * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com> diff --git a/arch/alpha/lib/ev6-stxncpy.S b/arch/alpha/lib/ev6-stxncpy.S index 1aa6e97e04b5..76da205282ee 100644 --- a/arch/alpha/lib/ev6-stxncpy.S +++ b/arch/alpha/lib/ev6-stxncpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev6-stxncpy.S * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com> diff --git a/arch/alpha/lib/ev67-strcat.S b/arch/alpha/lib/ev67-strcat.S index c426fe3ed72f..f8c7305b11d6 100644 --- a/arch/alpha/lib/ev67-strcat.S +++ b/arch/alpha/lib/ev67-strcat.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev67-strcat.S * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com> @@ -19,7 +20,7 @@ * string once. */ - +#include <linux/export.h> .text .align 4 @@ -52,3 +53,4 @@ $found: cttz $2, $3 # U0 : br __stxcpy # L0 : .end strcat + EXPORT_SYMBOL(strcat) diff --git a/arch/alpha/lib/ev67-strchr.S b/arch/alpha/lib/ev67-strchr.S index fbb7b4ffade9..97a7cb475309 100644 --- a/arch/alpha/lib/ev67-strchr.S +++ b/arch/alpha/lib/ev67-strchr.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev67-strchr.S * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com> @@ -15,7 +16,7 @@ * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1 * Try not to change the actual algorithm if possible for consistency. */ - +#include <linux/export.h> #include <asm/regdef.h> .set noreorder @@ -86,3 +87,4 @@ $found: negq t0, t1 # E : clear all but least set bit ret # L0 : .end strchr + EXPORT_SYMBOL(strchr) diff --git a/arch/alpha/lib/ev67-strlen.S b/arch/alpha/lib/ev67-strlen.S index 503928072523..3d9078807ab4 100644 --- a/arch/alpha/lib/ev67-strlen.S +++ b/arch/alpha/lib/ev67-strlen.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev67-strlen.S * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com> @@ -17,7 +18,7 @@ * U - upper subcluster; U0 - subcluster U0; U1 - subcluster U1 * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1 */ - +#include <linux/export.h> .set noreorder .set noat @@ -47,3 +48,4 @@ $found: ret $31, ($26) # L0 : .end strlen + EXPORT_SYMBOL(strlen) diff --git a/arch/alpha/lib/ev67-strncat.S b/arch/alpha/lib/ev67-strncat.S index 4ae716cd2bfb..8f313233e3a7 100644 --- a/arch/alpha/lib/ev67-strncat.S +++ b/arch/alpha/lib/ev67-strncat.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev67-strncat.S * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com> @@ -20,7 +21,7 @@ * Try not to change the actual algorithm if possible for consistency. */ - +#include <linux/export.h> .text .align 4 @@ -92,3 +93,4 @@ $zerocount: ret # L0 : .end strncat + EXPORT_SYMBOL(strncat) diff --git a/arch/alpha/lib/ev67-strrchr.S b/arch/alpha/lib/ev67-strrchr.S index dd0d8c6b9f59..ae7355f9ec56 100644 --- a/arch/alpha/lib/ev67-strrchr.S +++ b/arch/alpha/lib/ev67-strrchr.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/ev67-strrchr.S * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com> @@ -18,7 +19,7 @@ * L - lower subcluster; L0 - subcluster L0; L1 - subcluster L1 */ - +#include <linux/export.h> #include <asm/regdef.h> .set noreorder @@ -107,3 +108,4 @@ $eos: nop .end strrchr + EXPORT_SYMBOL(strrchr) diff --git a/arch/alpha/lib/fls.c b/arch/alpha/lib/fls.c index ddd048c0d825..02e156776645 100644 --- a/arch/alpha/lib/fls.c +++ b/arch/alpha/lib/fls.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/lib/fls.c */ diff --git a/arch/alpha/lib/fpreg.c b/arch/alpha/lib/fpreg.c index 05017ba34c3c..3d32165043f8 100644 --- a/arch/alpha/lib/fpreg.c +++ b/arch/alpha/lib/fpreg.c @@ -1,9 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/lib/fpreg.c * * (C) Copyright 1998 Linus Torvalds */ +#include <linux/compiler.h> +#include <linux/export.h> +#include <linux/preempt.h> +#include <asm/fpu.h> +#include <asm/thread_info.h> + #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) #define STT(reg,val) asm volatile ("ftoit $f"#reg",%0" : "=r"(val)); #else @@ -15,7 +22,12 @@ alpha_read_fp_reg (unsigned long reg) { unsigned long val; - switch (reg) { + if (unlikely(reg >= 32)) + return 0; + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) + val = current_thread_info()->fp[reg]; + else switch (reg) { case 0: STT( 0, val); break; case 1: STT( 1, val); break; case 2: STT( 2, val); break; @@ -48,10 +60,11 @@ alpha_read_fp_reg (unsigned long reg) case 29: STT(29, val); break; case 30: STT(30, val); break; case 31: STT(31, val); break; - default: return 0; } + preempt_enable(); return val; } +EXPORT_SYMBOL(alpha_read_fp_reg); #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) #define LDT(reg,val) asm volatile ("itoft %0,$f"#reg : : "r"(val)); @@ -62,7 +75,14 @@ alpha_read_fp_reg (unsigned long reg) void alpha_write_fp_reg (unsigned long reg, unsigned long val) { - switch (reg) { + if (unlikely(reg >= 32)) + return; + + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + current_thread_info()->status |= TS_RESTORE_FP; + current_thread_info()->fp[reg] = val; + } else switch (reg) { case 0: LDT( 0, val); break; case 1: LDT( 1, val); break; case 2: LDT( 2, val); break; @@ -96,7 +116,9 @@ alpha_write_fp_reg (unsigned long reg, unsigned long val) case 30: LDT(30, val); break; case 31: LDT(31, val); break; } + preempt_enable(); } +EXPORT_SYMBOL(alpha_write_fp_reg); #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) #define STS(reg,val) asm volatile ("ftois $f"#reg",%0" : "=r"(val)); @@ -109,7 +131,14 @@ alpha_read_fp_reg_s (unsigned long reg) { unsigned long val; - switch (reg) { + if (unlikely(reg >= 32)) + return 0; + + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + LDT(0, current_thread_info()->fp[reg]); + STS(0, val); + } else switch (reg) { case 0: STS( 0, val); break; case 1: STS( 1, val); break; case 2: STS( 2, val); break; @@ -142,10 +171,11 @@ alpha_read_fp_reg_s (unsigned long reg) case 29: STS(29, val); break; case 30: STS(30, val); break; case 31: STS(31, val); break; - default: return 0; } + preempt_enable(); return val; } +EXPORT_SYMBOL(alpha_read_fp_reg_s); #if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67) #define LDS(reg,val) asm volatile ("itofs %0,$f"#reg : : "r"(val)); @@ -156,7 +186,15 @@ alpha_read_fp_reg_s (unsigned long reg) void alpha_write_fp_reg_s (unsigned long reg, unsigned long val) { - switch (reg) { + if (unlikely(reg >= 32)) + return; + + preempt_disable(); + if (current_thread_info()->status & TS_SAVED_FP) { + current_thread_info()->status |= TS_RESTORE_FP; + LDS(0, val); + STT(0, current_thread_info()->fp[reg]); + } else switch (reg) { case 0: LDS( 0, val); break; case 1: LDS( 1, val); break; case 2: LDS( 2, val); break; @@ -190,4 +228,6 @@ alpha_write_fp_reg_s (unsigned long reg, unsigned long val) case 30: LDS(30, val); break; case 31: LDS(31, val); break; } + preempt_enable(); } +EXPORT_SYMBOL(alpha_write_fp_reg_s); diff --git a/arch/alpha/lib/memchr.S b/arch/alpha/lib/memchr.S index 14427eeb555e..45366e32feee 100644 --- a/arch/alpha/lib/memchr.S +++ b/arch/alpha/lib/memchr.S @@ -31,7 +31,7 @@ For correctness consider that: - only minimum number of quadwords may be accessed - the third argument is an unsigned long */ - +#include <linux/export.h> .set noreorder .set noat @@ -162,3 +162,4 @@ $not_found: ret # .. e1 : .end memchr + EXPORT_SYMBOL(memchr) diff --git a/arch/alpha/lib/memcpy.c b/arch/alpha/lib/memcpy.c index 64083fc73238..78b6850a9d53 100644 --- a/arch/alpha/lib/memcpy.c +++ b/arch/alpha/lib/memcpy.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/lib/memcpy.c * @@ -16,6 +17,8 @@ */ #include <linux/types.h> +#include <linux/export.h> +#include <linux/string.h> /* * This should be done in one go with ldq_u*2/mask/stq_u. Do it @@ -148,6 +151,8 @@ static inline void __memcpy_aligned_dn (unsigned long d, unsigned long s, DO_REST_ALIGNED_DN(d,s,n); } +#undef memcpy + void * memcpy(void * dest, const void *src, size_t n) { if (!(((unsigned long) dest ^ (unsigned long) src) & 7)) { @@ -158,6 +163,4 @@ void * memcpy(void * dest, const void *src, size_t n) __memcpy_unaligned_up ((unsigned long) dest, (unsigned long) src, n); return dest; } - -/* For backward modules compatibility, define __memcpy. */ -asm("__memcpy = memcpy; .globl __memcpy"); +EXPORT_SYMBOL(memcpy); diff --git a/arch/alpha/lib/memmove.S b/arch/alpha/lib/memmove.S index eb3b6e02242f..3a27689e3390 100644 --- a/arch/alpha/lib/memmove.S +++ b/arch/alpha/lib/memmove.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/memmove.S * @@ -6,7 +7,7 @@ * This is hand-massaged output from the original memcpy.c. We defer to * memcpy whenever possible; the backwards copy loops are not unrolled. */ - +#include <linux/export.h> .set noat .set noreorder .text @@ -179,3 +180,4 @@ $egress: nop .end memmove + EXPORT_SYMBOL(memmove) diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S index 311b8cfc6914..9075d6918346 100644 --- a/arch/alpha/lib/memset.S +++ b/arch/alpha/lib/memset.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/arch/alpha/lib/memset.S * @@ -13,17 +14,19 @@ * The scheduling comments are according to the EV5 documentation (and done by * hand, so they might well be incorrect, please do tell me about it..) */ - +#include <linux/export.h> .set noat .set noreorder .text .globl memset .globl __memset - .globl __memsetw + .globl ___memset + .globl __memset16 .globl __constant_c_memset - .ent __memset + + .ent ___memset .align 5 -__memset: +___memset: .frame $30,0,$26,0 .prologue 0 @@ -103,11 +106,13 @@ within_one_quad: end: ret $31,($26),1 /* E1 */ - .end __memset + .end ___memset +EXPORT_SYMBOL(___memset) +EXPORT_SYMBOL(__constant_c_memset) .align 5 - .ent __memsetw -__memsetw: + .ent __memset16 +__memset16: .prologue 0 inswl $17,0,$1 /* E0 */ @@ -119,6 +124,10 @@ __memsetw: or $1,$4,$17 /* E0 */ br __constant_c_memset /* .. E1 */ - .end __memsetw + .end __memset16 +EXPORT_SYMBOL(__memset16) -memset = __memset +memset = ___memset +__memset = ___memset + EXPORT_SYMBOL(memset) + EXPORT_SYMBOL(__memset) diff --git a/arch/alpha/lib/srm_printk.c b/arch/alpha/lib/srm_printk.c index 31b53c49435e..6276eed76276 100644 --- a/arch/alpha/lib/srm_printk.c +++ b/arch/alpha/lib/srm_printk.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/lib/srm_printk.c */ diff --git a/arch/alpha/lib/srm_puts.c b/arch/alpha/lib/srm_puts.c index 7b60a6f75a78..df7991f6fc69 100644 --- a/arch/alpha/lib/srm_puts.c +++ b/arch/alpha/lib/srm_puts.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/alpha/lib/srm_puts.c */ diff --git a/arch/alpha/lib/stacktrace.c b/arch/alpha/lib/stacktrace.c index 5e832161e6d2..2b1176dd5174 100644 --- a/arch/alpha/lib/stacktrace.c +++ b/arch/alpha/lib/stacktrace.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/kernel.h> typedef unsigned int instr; @@ -91,7 +92,7 @@ stacktrace(void) { instr * ret_pc; instr * prologue = (instr *)stacktrace; - register unsigned char * sp __asm__ ("$30"); + unsigned char *sp = (unsigned char *)current_stack_pointer; printk("\tstack trace:\n"); do { diff --git a/arch/alpha/lib/strcat.S b/arch/alpha/lib/strcat.S index 393f50384878..62b90ebbcf44 100644 --- a/arch/alpha/lib/strcat.S +++ b/arch/alpha/lib/strcat.S @@ -1,9 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/strcat.S * Contributed by Richard Henderson (rth@tamu.edu) * * Append a null-terminated string from SRC to DST. */ +#include <linux/export.h> .text @@ -50,3 +52,4 @@ $found: negq $2, $3 # clear all but least set bit br __stxcpy .end strcat +EXPORT_SYMBOL(strcat); diff --git a/arch/alpha/lib/strchr.S b/arch/alpha/lib/strchr.S index 011a175e8329..68c54ff50dfe 100644 --- a/arch/alpha/lib/strchr.S +++ b/arch/alpha/lib/strchr.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/strchr.S * Contributed by Richard Henderson (rth@tamu.edu) @@ -5,7 +6,7 @@ * Return the address of a given character within a null-terminated * string, or null if it is not found. */ - +#include <linux/export.h> #include <asm/regdef.h> .set noreorder @@ -68,3 +69,4 @@ $retnull: ret # .. e1 : .end strchr + EXPORT_SYMBOL(strchr) diff --git a/arch/alpha/lib/strcpy.S b/arch/alpha/lib/strcpy.S index e0728e4ad21f..d8773ba77525 100644 --- a/arch/alpha/lib/strcpy.S +++ b/arch/alpha/lib/strcpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/strcpy.S * Contributed by Richard Henderson (rth@tamu.edu) @@ -5,7 +6,7 @@ * Copy a null-terminated string from SRC to DST. Return a pointer * to the null-terminator in the source. */ - +#include <linux/export.h> .text .align 3 @@ -21,3 +22,4 @@ strcpy: br __stxcpy # do the copy .end strcpy + EXPORT_SYMBOL(strcpy) diff --git a/arch/alpha/lib/strlen.S b/arch/alpha/lib/strlen.S index fe63353de152..4fc6a6ff24cd 100644 --- a/arch/alpha/lib/strlen.S +++ b/arch/alpha/lib/strlen.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * strlen.S (c) 1995 David Mosberger (davidm@cs.arizona.edu) * @@ -11,7 +12,7 @@ * do this instead of the 9 instructions that * binary search needs). */ - +#include <linux/export.h> .set noreorder .set noat @@ -55,3 +56,4 @@ done: subq $0, $16, $0 ret $31, ($26) .end strlen + EXPORT_SYMBOL(strlen) diff --git a/arch/alpha/lib/strncat.S b/arch/alpha/lib/strncat.S index a8278163c972..a913a7c84a39 100644 --- a/arch/alpha/lib/strncat.S +++ b/arch/alpha/lib/strncat.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/strncat.S * Contributed by Richard Henderson (rth@tamu.edu) @@ -9,7 +10,7 @@ * past count, whereas libc may write to count+1. This follows the generic * implementation in lib/string.c and is, IMHO, more sensible. */ - +#include <linux/export.h> .text .align 3 @@ -82,3 +83,4 @@ $zerocount: ret .end strncat + EXPORT_SYMBOL(strncat) diff --git a/arch/alpha/lib/strncpy.S b/arch/alpha/lib/strncpy.S index a46f7f3ad8c7..cb90cf022df3 100644 --- a/arch/alpha/lib/strncpy.S +++ b/arch/alpha/lib/strncpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/strncpy.S * Contributed by Richard Henderson (rth@tamu.edu) @@ -10,7 +11,7 @@ * version has cropped that bit o' nastiness as well as assuming that * __stxncpy is in range of a branch. */ - +#include <linux/export.h> .set noat .set noreorder @@ -79,3 +80,4 @@ $zerolen: ret .end strncpy + EXPORT_SYMBOL(strncpy) diff --git a/arch/alpha/lib/strrchr.S b/arch/alpha/lib/strrchr.S index 1970dc07cfd1..dd8e073b6cf2 100644 --- a/arch/alpha/lib/strrchr.S +++ b/arch/alpha/lib/strrchr.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/strrchr.S * Contributed by Richard Henderson (rth@tamu.edu) @@ -5,7 +6,7 @@ * Return the address of the last occurrence of a given character * within a null-terminated string, or null if it is not found. */ - +#include <linux/export.h> #include <asm/regdef.h> .set noreorder @@ -85,3 +86,4 @@ $retnull: ret # .. e1 : .end strrchr + EXPORT_SYMBOL(strrchr) diff --git a/arch/alpha/lib/stxcpy.S b/arch/alpha/lib/stxcpy.S index 2a8d51bfc05d..58723b0a36d4 100644 --- a/arch/alpha/lib/stxcpy.S +++ b/arch/alpha/lib/stxcpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/stxcpy.S * Contributed by Richard Henderson (rth@tamu.edu) diff --git a/arch/alpha/lib/stxncpy.S b/arch/alpha/lib/stxncpy.S index 3dece25283a3..011d9091c6e1 100644 --- a/arch/alpha/lib/stxncpy.S +++ b/arch/alpha/lib/stxncpy.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * arch/alpha/lib/stxncpy.S * Contributed by Richard Henderson (rth@tamu.edu) diff --git a/arch/alpha/lib/stycpy.S b/arch/alpha/lib/stycpy.S new file mode 100644 index 000000000000..32ecd9c5f90d --- /dev/null +++ b/arch/alpha/lib/stycpy.S @@ -0,0 +1,11 @@ +#include "strcpy.S" +#ifdef CONFIG_ALPHA_EV67 +#include "ev67-strcat.S" +#else +#include "strcat.S" +#endif +#ifdef CONFIG_ALPHA_EV6 +#include "ev6-stxcpy.S" +#else +#include "stxcpy.S" +#endif diff --git a/arch/alpha/lib/styncpy.S b/arch/alpha/lib/styncpy.S new file mode 100644 index 000000000000..72fc2754eb57 --- /dev/null +++ b/arch/alpha/lib/styncpy.S @@ -0,0 +1,11 @@ +#include "strncpy.S" +#ifdef CONFIG_ALPHA_EV67 +#include "ev67-strncat.S" +#else +#include "strncat.S" +#endif +#ifdef CONFIG_ALPHA_EV6 +#include "ev6-stxncpy.S" +#else +#include "stxncpy.S" +#endif diff --git a/arch/alpha/lib/udelay.c b/arch/alpha/lib/udelay.c index 69d52aa37bae..873648263430 100644 --- a/arch/alpha/lib/udelay.c +++ b/arch/alpha/lib/udelay.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 1993, 2000 Linus Torvalds * @@ -30,6 +31,7 @@ __delay(int loops) " bgt %0,1b" : "=&r" (tmp), "=r" (loops) : "1"(loops)); } +EXPORT_SYMBOL(__delay); #ifdef CONFIG_SMP #define LPJ cpu_data[smp_processor_id()].loops_per_jiffy diff --git a/arch/alpha/math-emu/qrnnd.S b/arch/alpha/lib/udiv-qrnnd.S index d6373ec1bff9..96f05918bffe 100644 --- a/arch/alpha/math-emu/qrnnd.S +++ b/arch/alpha/lib/udiv-qrnnd.S @@ -25,6 +25,7 @@ # along with GCC; see the file COPYING. If not, write to the # Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, # MA 02111-1307, USA. +#include <linux/export.h> .set noreorder .set noat @@ -161,3 +162,4 @@ $Odd: ret $31,($26),1 .end __udiv_qrnnd +EXPORT_SYMBOL(__udiv_qrnnd) diff --git a/arch/alpha/math-emu/Makefile b/arch/alpha/math-emu/Makefile index 7f4671995245..3206402a8792 100644 --- a/arch/alpha/math-emu/Makefile +++ b/arch/alpha/math-emu/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for the FPU instruction emulation. # @@ -6,4 +7,4 @@ ccflags-y := -w obj-$(CONFIG_MATHEMU) += math-emu.o -math-emu-objs := math.o qrnnd.o +math-emu-objs := math.o diff --git a/arch/alpha/math-emu/math.c b/arch/alpha/math-emu/math.c index 58c2669a1dd4..68d420bfd3c0 100644 --- a/arch/alpha/math-emu/math.c +++ b/arch/alpha/math-emu/math.c @@ -1,9 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/sched.h> +#include <asm/ptrace.h> +#include <asm/fpu.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include "sfp-util.h" #include <math-emu/soft-fp.h> @@ -43,15 +46,10 @@ #define MISC_TRAPB 0x0000 #define MISC_EXCB 0x0400 -extern unsigned long alpha_read_fp_reg (unsigned long reg); -extern void alpha_write_fp_reg (unsigned long reg, unsigned long val); -extern unsigned long alpha_read_fp_reg_s (unsigned long reg); -extern void alpha_write_fp_reg_s (unsigned long reg, unsigned long val); - - #ifdef MODULE MODULE_DESCRIPTION("FP Software completion module"); +MODULE_LICENSE("GPL v2"); extern long (*alpha_fp_emul_imprecise)(struct pt_regs *, unsigned long); extern long (*alpha_fp_emul) (unsigned long pc); @@ -62,7 +60,7 @@ static long (*save_emul) (unsigned long pc); long do_alpha_fp_emul_imprecise(struct pt_regs *, unsigned long); long do_alpha_fp_emul(unsigned long); -int init_module(void) +static int alpha_fp_emul_init_module(void) { save_emul_imprecise = alpha_fp_emul_imprecise; save_emul = alpha_fp_emul; @@ -70,12 +68,14 @@ int init_module(void) alpha_fp_emul = do_alpha_fp_emul; return 0; } +module_init(alpha_fp_emul_init_module); -void cleanup_module(void) +static void alpha_fp_emul_cleanup_module(void) { alpha_fp_emul_imprecise = save_emul_imprecise; alpha_fp_emul = save_emul; } +module_exit(alpha_fp_emul_cleanup_module); #undef alpha_fp_emul_imprecise #define alpha_fp_emul_imprecise do_alpha_fp_emul_imprecise diff --git a/arch/alpha/math-emu/sfp-util.h b/arch/alpha/math-emu/sfp-util.h index f53707f77455..ae30f3417522 100644 --- a/arch/alpha/math-emu/sfp-util.h +++ b/arch/alpha/math-emu/sfp-util.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/types.h> diff --git a/arch/alpha/mm/Makefile b/arch/alpha/mm/Makefile index c993d3f93cf6..101dbd06b4ce 100644 --- a/arch/alpha/mm/Makefile +++ b/arch/alpha/mm/Makefile @@ -1,9 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for the linux alpha-specific parts of the memory manager. # -ccflags-y := -Werror - -obj-y := init.o fault.o extable.o - -obj-$(CONFIG_DISCONTIGMEM) += numa.o +obj-y := init.o fault.o diff --git a/arch/alpha/mm/extable.c b/arch/alpha/mm/extable.c deleted file mode 100644 index 813c9b63c0e1..000000000000 --- a/arch/alpha/mm/extable.c +++ /dev/null @@ -1,92 +0,0 @@ -/* - * linux/arch/alpha/mm/extable.c - */ - -#include <linux/module.h> -#include <linux/sort.h> -#include <asm/uaccess.h> - -static inline unsigned long ex_to_addr(const struct exception_table_entry *x) -{ - return (unsigned long)&x->insn + x->insn; -} - -static void swap_ex(void *a, void *b, int size) -{ - struct exception_table_entry *ex_a = a, *ex_b = b; - unsigned long addr_a = ex_to_addr(ex_a), addr_b = ex_to_addr(ex_b); - unsigned int t = ex_a->fixup.unit; - - ex_a->fixup.unit = ex_b->fixup.unit; - ex_b->fixup.unit = t; - ex_a->insn = (int)(addr_b - (unsigned long)&ex_a->insn); - ex_b->insn = (int)(addr_a - (unsigned long)&ex_b->insn); -} - -/* - * The exception table needs to be sorted so that the binary - * search that we use to find entries in it works properly. - * This is used both for the kernel exception table and for - * the exception tables of modules that get loaded. - */ -static int cmp_ex(const void *a, const void *b) -{ - const struct exception_table_entry *x = a, *y = b; - - /* avoid overflow */ - if (ex_to_addr(x) > ex_to_addr(y)) - return 1; - if (ex_to_addr(x) < ex_to_addr(y)) - return -1; - return 0; -} - -void sort_extable(struct exception_table_entry *start, - struct exception_table_entry *finish) -{ - sort(start, finish - start, sizeof(struct exception_table_entry), - cmp_ex, swap_ex); -} - -#ifdef CONFIG_MODULES -/* - * Any entry referring to the module init will be at the beginning or - * the end. - */ -void trim_init_extable(struct module *m) -{ - /*trim the beginning*/ - while (m->num_exentries && - within_module_init(ex_to_addr(&m->extable[0]), m)) { - m->extable++; - m->num_exentries--; - } - /*trim the end*/ - while (m->num_exentries && - within_module_init(ex_to_addr(&m->extable[m->num_exentries-1]), - m)) - m->num_exentries--; -} -#endif /* CONFIG_MODULES */ - -const struct exception_table_entry * -search_extable(const struct exception_table_entry *first, - const struct exception_table_entry *last, - unsigned long value) -{ - while (first <= last) { - const struct exception_table_entry *mid; - unsigned long mid_value; - - mid = (last - first) / 2 + first; - mid_value = ex_to_addr(mid); - if (mid_value == value) - return mid; - else if (mid_value < value) - first = mid+1; - else - last = mid-1; - } - - return NULL; -} diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c index 0c4132dd3507..a9816bbc9f34 100644 --- a/arch/alpha/mm/fault.c +++ b/arch/alpha/mm/fault.c @@ -1,10 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/mm/fault.c * * Copyright (C) 1995 Linus Torvalds */ -#include <linux/sched.h> +#include <linux/sched/signal.h> #include <linux/kernel.h> #include <linux/mm.h> #include <asm/io.h> @@ -22,9 +23,9 @@ #include <linux/mman.h> #include <linux/smp.h> #include <linux/interrupt.h> -#include <linux/module.h> - -#include <asm/uaccess.h> +#include <linux/extable.h> +#include <linux/uaccess.h> +#include <linux/perf_event.h> extern void die_if_kernel(char *,struct pt_regs *,long, unsigned long *); @@ -77,8 +78,8 @@ __load_new_mm_context(struct mm_struct *next_mm) /* Macro for exception fixup code to access integer registers. */ #define dpf_reg(r) \ - (((unsigned long *)regs)[(r) <= 8 ? (r) : (r) <= 15 ? (r)-16 : \ - (r) <= 18 ? (r)+8 : (r)-10]) + (((unsigned long *)regs)[(r) <= 8 ? (r) : (r) <= 15 ? (r)-17 : \ + (r) <= 18 ? (r)+11 : (r)-10]) asmlinkage void do_page_fault(unsigned long address, unsigned long mmcsr, @@ -87,10 +88,9 @@ do_page_fault(unsigned long address, unsigned long mmcsr, struct vm_area_struct * vma; struct mm_struct *mm = current->mm; const struct exception_table_entry *fixup; - int fault, si_code = SEGV_MAPERR; - siginfo_t info; - unsigned int flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | - (cause > 0 ? FAULT_FLAG_WRITE : 0)); + int si_code = SEGV_MAPERR; + vm_fault_t fault; + unsigned int flags = FAULT_FLAG_DEFAULT; /* As of EV6, a load into $31/$f31 is a prefetch, and never faults (or is suppressed by the PALcode). Support that for older CPUs @@ -108,29 +108,23 @@ do_page_fault(unsigned long address, unsigned long mmcsr, /* If we're in an interrupt context, or have no user context, we must not take the fault. */ - if (!mm || in_atomic()) + if (!mm || faulthandler_disabled()) goto no_context; #ifdef CONFIG_ALPHA_LARGE_VMALLOC if (address >= TASK_SIZE) goto vmalloc_fault; #endif - + if (user_mode(regs)) + flags |= FAULT_FLAG_USER; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); retry: - down_read(&mm->mmap_sem); - vma = find_vma(mm, address); + vma = lock_mm_and_find_vma(mm, address, regs); if (!vma) - goto bad_area; - if (vma->vm_start <= address) - goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; - if (expand_stack(vma, address)) - goto bad_area; + goto bad_area_nosemaphore; /* Ok, we have a good vm_area for this memory access, so we can handle it. */ - good_area: si_code = SEGV_ACCERR; if (cause < 0) { if (!(vma->vm_flags & VM_EXEC)) @@ -142,50 +136,55 @@ retry: } else { if (!(vma->vm_flags & VM_WRITE)) goto bad_area; + flags |= FAULT_FLAG_WRITE; } /* If for any reason at all we couldn't handle the fault, make sure we exit gracefully rather than endlessly redo the fault. */ - fault = handle_mm_fault(mm, vma, address, flags); + fault = handle_mm_fault(vma, address, flags, regs); + + if (fault_signal_pending(fault, regs)) { + if (!user_mode(regs)) + goto no_context; + return; + } - if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current)) + /* The fault is fully completed (including releasing mmap lock) */ + if (fault & VM_FAULT_COMPLETED) return; if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) goto out_of_memory; + else if (fault & VM_FAULT_SIGSEGV) + goto bad_area; else if (fault & VM_FAULT_SIGBUS) goto do_sigbus; BUG(); } - if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_MAJOR) - current->maj_flt++; - else - current->min_flt++; - if (fault & VM_FAULT_RETRY) { - flags &= ~FAULT_FLAG_ALLOW_RETRY; + if (fault & VM_FAULT_RETRY) { + flags |= FAULT_FLAG_TRIED; - /* No need to up_read(&mm->mmap_sem) as we would - * have already released it in __lock_page_or_retry - * in mm/filemap.c. - */ + /* No need to mmap_read_unlock(mm) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ - goto retry; - } + goto retry; } - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); return; /* Something tried to access memory that isn't in our memory map. Fix it, but check if it's kernel or user first. */ bad_area: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); + bad_area_nosemaphore: if (user_mode(regs)) goto do_sigsegv; @@ -203,36 +202,28 @@ retry: printk(KERN_ALERT "Unable to handle kernel paging request at " "virtual address %016lx\n", address); die_if_kernel("Oops", regs, cause, (unsigned long*)regs - 16); - do_exit(SIGKILL); + make_task_dead(SIGKILL); /* We ran out of memory, or some other thing happened to us that made us unable to handle the page fault gracefully. */ out_of_memory: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); if (!user_mode(regs)) goto no_context; pagefault_out_of_memory(); return; do_sigbus: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); /* Send a sigbus, regardless of whether we were in kernel or user mode. */ - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRERR; - info.si_addr = (void __user *) address; - force_sig_info(SIGBUS, &info, current); + force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *) address); if (!user_mode(regs)) goto no_context; return; do_sigsegv: - info.si_signo = SIGSEGV; - info.si_errno = 0; - info.si_code = si_code; - info.si_addr = (void __user *) address; - force_sig_info(SIGSEGV, &info, current); + force_sig_fault(SIGSEGV, si_code, (void __user *) address); return; #ifdef CONFIG_ALPHA_LARGE_VMALLOC diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index a1bea91df56a..4c5ab9cd8a0a 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * linux/arch/alpha/mm/init.c * @@ -18,12 +19,11 @@ #include <linux/mm.h> #include <linux/swap.h> #include <linux/init.h> -#include <linux/bootmem.h> /* max_low_pfn */ +#include <linux/memblock.h> /* max_low_pfn */ #include <linux/vmalloc.h> #include <linux/gfp.h> -#include <asm/uaccess.h> -#include <asm/pgtable.h> +#include <linux/uaccess.h> #include <asm/pgalloc.h> #include <asm/hwrpb.h> #include <asm/dma.h> @@ -33,7 +33,7 @@ #include <asm/setup.h> #include <asm/sections.h> -extern void die_if_kernel(char *,struct pt_regs *,long); +#include "../kernel/proto.h" static struct pcb_struct original_pcb; @@ -42,7 +42,7 @@ pgd_alloc(struct mm_struct *mm) { pgd_t *ret, *init; - ret = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); + ret = __pgd_alloc(mm, 0); init = pgd_offset(&init_mm, 0UL); if (ret) { #ifdef CONFIG_ALPHA_LARGE_VMALLOC @@ -60,33 +60,6 @@ pgd_alloc(struct mm_struct *mm) } -/* - * BAD_PAGE is the page that is used for page faults when linux - * is out-of-memory. Older versions of linux just did a - * do_exit(), but using this instead means there is less risk - * for a process dying in kernel mode, possibly leaving an inode - * unused etc.. - * - * BAD_PAGETABLE is the accompanying page-table: it is initialized - * to point to BAD_PAGE entries. - * - * ZERO_PAGE is a special page that is used for zero-initialized - * data and COW. - */ -pmd_t * -__bad_pagetable(void) -{ - memset((void *) EMPTY_PGT, 0, PAGE_SIZE); - return (pmd_t *) EMPTY_PGT; -} - -pte_t -__bad_page(void) -{ - memset((void *) EMPTY_PGE, 0, PAGE_SIZE); - return pte_mkdirty(mk_pte(virt_to_page(EMPTY_PGE), PAGE_SHARED)); -} - static inline unsigned long load_PCB(struct pcb_struct *pcb) { @@ -145,6 +118,8 @@ callback_init(void * kernel_end) { struct crb_struct * crb; pgd_t *pgd; + p4d_t *p4d; + pud_t *pud; pmd_t *pmd; void *two_pages; @@ -183,8 +158,10 @@ callback_init(void * kernel_end) memset(two_pages, 0, 2*PAGE_SIZE); pgd = pgd_offset_k(VMALLOC_START); - pgd_set(pgd, (pmd_t *)two_pages); - pmd = pmd_offset(pgd, VMALLOC_START); + p4d = p4d_offset(pgd, VMALLOC_START); + pud = pud_offset(p4d, VMALLOC_START); + pud_set(pud, (pmd_t *)two_pages); + pmd = pmd_offset(pud, VMALLOC_START); pmd_set(pmd, (pte_t *)(two_pages + PAGE_SIZE)); if (alpha_using_srm) { @@ -213,9 +190,9 @@ callback_init(void * kernel_end) /* Newer consoles (especially on larger systems) may require more pages of PTEs. Grab additional pages as needed. */ - if (pmd != pmd_offset(pgd, vaddr)) { + if (pmd != pmd_offset(pud, vaddr)) { memset(kernel_end, 0, PAGE_SIZE); - pmd = pmd_offset(pgd, vaddr); + pmd = pmd_offset(pud, vaddr); pmd_set(pmd, (pte_t *)kernel_end); kernel_end += PAGE_SIZE; } @@ -231,33 +208,26 @@ callback_init(void * kernel_end) return kernel_end; } - -#ifndef CONFIG_DISCONTIGMEM /* * paging_init() sets up the memory map. */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - unsigned long dma_pfn, high_pfn; + unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; + unsigned long dma_pfn; dma_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - high_pfn = max_pfn = max_low_pfn; + max_pfn = max_low_pfn; - if (dma_pfn >= high_pfn) - zones_size[ZONE_DMA] = high_pfn; - else { - zones_size[ZONE_DMA] = dma_pfn; - zones_size[ZONE_NORMAL] = high_pfn - dma_pfn; - } + max_zone_pfn[ZONE_DMA] = dma_pfn; + max_zone_pfn[ZONE_NORMAL] = max_pfn; /* Initialize mem_map[]. */ - free_area_init(zones_size); + free_area_init(max_zone_pfn); /* Initialize the kernel's ZERO_PGE. */ - memset((void *)ZERO_PGE, 0, PAGE_SIZE); + memset(absolute_pointer(ZERO_PGE), 0, PAGE_SIZE); } -#endif /* CONFIG_DISCONTIGMEM */ #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SRM) void @@ -276,25 +246,24 @@ srm_paging_stop (void) } #endif -void __init -mem_init(void) -{ - set_max_mapnr(max_low_pfn); - high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); - free_all_bootmem(); - mem_init_print_info(NULL); -} - -void -free_initmem(void) -{ - free_initmem_default(-1); -} - -#ifdef CONFIG_BLK_DEV_INITRD -void -free_initrd_mem(unsigned long start, unsigned long end) -{ - free_reserved_area((void *)start, (void *)end, -1, "initrd"); -} -#endif +static const pgprot_t protection_map[16] = { + [VM_NONE] = _PAGE_P(_PAGE_FOE | _PAGE_FOW | + _PAGE_FOR), + [VM_READ] = _PAGE_P(_PAGE_FOE | _PAGE_FOW), + [VM_WRITE] = _PAGE_P(_PAGE_FOE), + [VM_WRITE | VM_READ] = _PAGE_P(_PAGE_FOE), + [VM_EXEC] = _PAGE_P(_PAGE_FOW | _PAGE_FOR), + [VM_EXEC | VM_READ] = _PAGE_P(_PAGE_FOW), + [VM_EXEC | VM_WRITE] = _PAGE_P(0), + [VM_EXEC | VM_WRITE | VM_READ] = _PAGE_P(0), + [VM_SHARED] = _PAGE_S(_PAGE_FOE | _PAGE_FOW | + _PAGE_FOR), + [VM_SHARED | VM_READ] = _PAGE_S(_PAGE_FOE | _PAGE_FOW), + [VM_SHARED | VM_WRITE] = _PAGE_S(_PAGE_FOE), + [VM_SHARED | VM_WRITE | VM_READ] = _PAGE_S(_PAGE_FOE), + [VM_SHARED | VM_EXEC] = _PAGE_S(_PAGE_FOW | _PAGE_FOR), + [VM_SHARED | VM_EXEC | VM_READ] = _PAGE_S(_PAGE_FOW), + [VM_SHARED | VM_EXEC | VM_WRITE] = _PAGE_S(0), + [VM_SHARED | VM_EXEC | VM_WRITE | VM_READ] = _PAGE_S(0) +}; +DECLARE_VM_GET_PAGE_PROT diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c deleted file mode 100644 index d543d71c28b4..000000000000 --- a/arch/alpha/mm/numa.c +++ /dev/null @@ -1,321 +0,0 @@ -/* - * linux/arch/alpha/mm/numa.c - * - * DISCONTIGMEM NUMA alpha support. - * - * Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/bootmem.h> -#include <linux/swap.h> -#include <linux/initrd.h> -#include <linux/pfn.h> -#include <linux/module.h> - -#include <asm/hwrpb.h> -#include <asm/pgalloc.h> -#include <asm/sections.h> - -pg_data_t node_data[MAX_NUMNODES]; -EXPORT_SYMBOL(node_data); - -#undef DEBUG_DISCONTIG -#ifdef DEBUG_DISCONTIG -#define DBGDCONT(args...) printk(args) -#else -#define DBGDCONT(args...) -#endif - -#define for_each_mem_cluster(memdesc, _cluster, i) \ - for ((_cluster) = (memdesc)->cluster, (i) = 0; \ - (i) < (memdesc)->numclusters; (i)++, (_cluster)++) - -static void __init show_mem_layout(void) -{ - struct memclust_struct * cluster; - struct memdesc_struct * memdesc; - int i; - - /* Find free clusters, and init and free the bootmem accordingly. */ - memdesc = (struct memdesc_struct *) - (hwrpb->mddt_offset + (unsigned long) hwrpb); - - printk("Raw memory layout:\n"); - for_each_mem_cluster(memdesc, cluster, i) { - printk(" memcluster %2d, usage %1lx, start %8lu, end %8lu\n", - i, cluster->usage, cluster->start_pfn, - cluster->start_pfn + cluster->numpages); - } -} - -static void __init -setup_memory_node(int nid, void *kernel_end) -{ - extern unsigned long mem_size_limit; - struct memclust_struct * cluster; - struct memdesc_struct * memdesc; - unsigned long start_kernel_pfn, end_kernel_pfn; - unsigned long bootmap_size, bootmap_pages, bootmap_start; - unsigned long start, end; - unsigned long node_pfn_start, node_pfn_end; - unsigned long node_min_pfn, node_max_pfn; - int i; - unsigned long node_datasz = PFN_UP(sizeof(pg_data_t)); - int show_init = 0; - - /* Find the bounds of current node */ - node_pfn_start = (node_mem_start(nid)) >> PAGE_SHIFT; - node_pfn_end = node_pfn_start + (node_mem_size(nid) >> PAGE_SHIFT); - - /* Find free clusters, and init and free the bootmem accordingly. */ - memdesc = (struct memdesc_struct *) - (hwrpb->mddt_offset + (unsigned long) hwrpb); - - /* find the bounds of this node (node_min_pfn/node_max_pfn) */ - node_min_pfn = ~0UL; - node_max_pfn = 0UL; - for_each_mem_cluster(memdesc, cluster, i) { - /* Bit 0 is console/PALcode reserved. Bit 1 is - non-volatile memory -- we might want to mark - this for later. */ - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = start + cluster->numpages; - - if (start >= node_pfn_end || end <= node_pfn_start) - continue; - - if (!show_init) { - show_init = 1; - printk("Initializing bootmem allocator on Node ID %d\n", nid); - } - printk(" memcluster %2d, usage %1lx, start %8lu, end %8lu\n", - i, cluster->usage, cluster->start_pfn, - cluster->start_pfn + cluster->numpages); - - if (start < node_pfn_start) - start = node_pfn_start; - if (end > node_pfn_end) - end = node_pfn_end; - - if (start < node_min_pfn) - node_min_pfn = start; - if (end > node_max_pfn) - node_max_pfn = end; - } - - if (mem_size_limit && node_max_pfn > mem_size_limit) { - static int msg_shown = 0; - if (!msg_shown) { - msg_shown = 1; - printk("setup: forcing memory size to %ldK (from %ldK).\n", - mem_size_limit << (PAGE_SHIFT - 10), - node_max_pfn << (PAGE_SHIFT - 10)); - } - node_max_pfn = mem_size_limit; - } - - if (node_min_pfn >= node_max_pfn) - return; - - /* Update global {min,max}_low_pfn from node information. */ - if (node_min_pfn < min_low_pfn) - min_low_pfn = node_min_pfn; - if (node_max_pfn > max_low_pfn) - max_pfn = max_low_pfn = node_max_pfn; - -#if 0 /* we'll try this one again in a little while */ - /* Cute trick to make sure our local node data is on local memory */ - node_data[nid] = (pg_data_t *)(__va(node_min_pfn << PAGE_SHIFT)); -#endif - /* Quasi-mark the pg_data_t as in-use */ - node_min_pfn += node_datasz; - if (node_min_pfn >= node_max_pfn) { - printk(" not enough mem to reserve NODE_DATA"); - return; - } - NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; - - printk(" Detected node memory: start %8lu, end %8lu\n", - node_min_pfn, node_max_pfn); - - DBGDCONT(" DISCONTIG: node_data[%d] is at 0x%p\n", nid, NODE_DATA(nid)); - DBGDCONT(" DISCONTIG: NODE_DATA(%d)->bdata is at 0x%p\n", nid, NODE_DATA(nid)->bdata); - - /* Find the bounds of kernel memory. */ - start_kernel_pfn = PFN_DOWN(KERNEL_START_PHYS); - end_kernel_pfn = PFN_UP(virt_to_phys(kernel_end)); - bootmap_start = -1; - - if (!nid && (node_max_pfn < end_kernel_pfn || node_min_pfn > start_kernel_pfn)) - panic("kernel loaded out of ram"); - - /* Zone start phys-addr must be 2^(MAX_ORDER-1) aligned. - Note that we round this down, not up - node memory - has much larger alignment than 8Mb, so it's safe. */ - node_min_pfn &= ~((1UL << (MAX_ORDER-1))-1); - - /* We need to know how many physically contiguous pages - we'll need for the bootmap. */ - bootmap_pages = bootmem_bootmap_pages(node_max_pfn-node_min_pfn); - - /* Now find a good region where to allocate the bootmap. */ - for_each_mem_cluster(memdesc, cluster, i) { - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = start + cluster->numpages; - - if (start >= node_max_pfn || end <= node_min_pfn) - continue; - - if (end > node_max_pfn) - end = node_max_pfn; - if (start < node_min_pfn) - start = node_min_pfn; - - if (start < start_kernel_pfn) { - if (end > end_kernel_pfn - && end - end_kernel_pfn >= bootmap_pages) { - bootmap_start = end_kernel_pfn; - break; - } else if (end > start_kernel_pfn) - end = start_kernel_pfn; - } else if (start < end_kernel_pfn) - start = end_kernel_pfn; - if (end - start >= bootmap_pages) { - bootmap_start = start; - break; - } - } - - if (bootmap_start == -1) - panic("couldn't find a contiguous place for the bootmap"); - - /* Allocate the bootmap and mark the whole MM as reserved. */ - bootmap_size = init_bootmem_node(NODE_DATA(nid), bootmap_start, - node_min_pfn, node_max_pfn); - DBGDCONT(" bootmap_start %lu, bootmap_size %lu, bootmap_pages %lu\n", - bootmap_start, bootmap_size, bootmap_pages); - - /* Mark the free regions. */ - for_each_mem_cluster(memdesc, cluster, i) { - if (cluster->usage & 3) - continue; - - start = cluster->start_pfn; - end = cluster->start_pfn + cluster->numpages; - - if (start >= node_max_pfn || end <= node_min_pfn) - continue; - - if (end > node_max_pfn) - end = node_max_pfn; - if (start < node_min_pfn) - start = node_min_pfn; - - if (start < start_kernel_pfn) { - if (end > end_kernel_pfn) { - free_bootmem_node(NODE_DATA(nid), PFN_PHYS(start), - (PFN_PHYS(start_kernel_pfn) - - PFN_PHYS(start))); - printk(" freeing pages %ld:%ld\n", - start, start_kernel_pfn); - start = end_kernel_pfn; - } else if (end > start_kernel_pfn) - end = start_kernel_pfn; - } else if (start < end_kernel_pfn) - start = end_kernel_pfn; - if (start >= end) - continue; - - free_bootmem_node(NODE_DATA(nid), PFN_PHYS(start), PFN_PHYS(end) - PFN_PHYS(start)); - printk(" freeing pages %ld:%ld\n", start, end); - } - - /* Reserve the bootmap memory. */ - reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(bootmap_start), - bootmap_size, BOOTMEM_DEFAULT); - printk(" reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size)); - - node_set_online(nid); -} - -void __init -setup_memory(void *kernel_end) -{ - int nid; - - show_mem_layout(); - - nodes_clear(node_online_map); - - min_low_pfn = ~0UL; - max_low_pfn = 0UL; - for (nid = 0; nid < MAX_NUMNODES; nid++) - setup_memory_node(nid, kernel_end); - -#ifdef CONFIG_BLK_DEV_INITRD - initrd_start = INITRD_START; - if (initrd_start) { - extern void *move_initrd(unsigned long); - - initrd_end = initrd_start+INITRD_SIZE; - printk("Initial ramdisk at: 0x%p (%lu bytes)\n", - (void *) initrd_start, INITRD_SIZE); - - if ((void *)initrd_end > phys_to_virt(PFN_PHYS(max_low_pfn))) { - if (!move_initrd(PFN_PHYS(max_low_pfn))) - printk("initrd extends beyond end of memory " - "(0x%08lx > 0x%p)\ndisabling initrd\n", - initrd_end, - phys_to_virt(PFN_PHYS(max_low_pfn))); - } else { - nid = kvaddr_to_nid(initrd_start); - reserve_bootmem_node(NODE_DATA(nid), - virt_to_phys((void *)initrd_start), - INITRD_SIZE, BOOTMEM_DEFAULT); - } - } -#endif /* CONFIG_BLK_DEV_INITRD */ -} - -void __init paging_init(void) -{ - unsigned int nid; - unsigned long zones_size[MAX_NR_ZONES] = {0, }; - unsigned long dma_local_pfn; - - /* - * The old global MAX_DMA_ADDRESS per-arch API doesn't fit - * in the NUMA model, for now we convert it to a pfn and - * we interpret this pfn as a local per-node information. - * This issue isn't very important since none of these machines - * have legacy ISA slots anyways. - */ - dma_local_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - - for_each_online_node(nid) { - bootmem_data_t *bdata = &bootmem_node_data[nid]; - unsigned long start_pfn = bdata->node_min_pfn; - unsigned long end_pfn = bdata->node_low_pfn; - - if (dma_local_pfn >= end_pfn - start_pfn) - zones_size[ZONE_DMA] = end_pfn - start_pfn; - else { - zones_size[ZONE_DMA] = dma_local_pfn; - zones_size[ZONE_NORMAL] = (end_pfn - start_pfn) - dma_local_pfn; - } - node_set_state(nid, N_NORMAL_MEMORY); - free_area_init_node(nid, zones_size, start_pfn, NULL); - } - - /* Initialize the kernel's ZERO_PGE. */ - memset((void *)ZERO_PGE, 0, PAGE_SIZE); -} diff --git a/arch/alpha/oprofile/Makefile b/arch/alpha/oprofile/Makefile deleted file mode 100644 index 3473de751b03..000000000000 --- a/arch/alpha/oprofile/Makefile +++ /dev/null @@ -1,19 +0,0 @@ -ccflags-y := -Werror -Wno-sign-compare - -obj-$(CONFIG_OPROFILE) += oprofile.o - -DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \ - oprof.o cpu_buffer.o buffer_sync.o \ - event_buffer.o oprofile_files.o \ - oprofilefs.o oprofile_stats.o \ - timer_int.o ) - -oprofile-y := $(DRIVER_OBJS) common.o -oprofile-$(CONFIG_ALPHA_GENERIC) += op_model_ev4.o \ - op_model_ev5.o \ - op_model_ev6.o \ - op_model_ev67.o -oprofile-$(CONFIG_ALPHA_EV4) += op_model_ev4.o -oprofile-$(CONFIG_ALPHA_EV5) += op_model_ev5.o -oprofile-$(CONFIG_ALPHA_EV6) += op_model_ev6.o \ - op_model_ev67.o diff --git a/arch/alpha/oprofile/common.c b/arch/alpha/oprofile/common.c deleted file mode 100644 index b8ce18f485d3..000000000000 --- a/arch/alpha/oprofile/common.c +++ /dev/null @@ -1,189 +0,0 @@ -/** - * @file arch/alpha/oprofile/common.c - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author Richard Henderson <rth@twiddle.net> - */ - -#include <linux/oprofile.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <linux/errno.h> -#include <asm/ptrace.h> -#include <asm/special_insns.h> - -#include "op_impl.h" - -extern struct op_axp_model op_model_ev4 __attribute__((weak)); -extern struct op_axp_model op_model_ev5 __attribute__((weak)); -extern struct op_axp_model op_model_pca56 __attribute__((weak)); -extern struct op_axp_model op_model_ev6 __attribute__((weak)); -extern struct op_axp_model op_model_ev67 __attribute__((weak)); - -static struct op_axp_model *model; - -extern void (*perf_irq)(unsigned long, struct pt_regs *); -static void (*save_perf_irq)(unsigned long, struct pt_regs *); - -static struct op_counter_config ctr[20]; -static struct op_system_config sys; -static struct op_register_config reg; - -/* Called from do_entInt to handle the performance monitor interrupt. */ - -static void -op_handle_interrupt(unsigned long which, struct pt_regs *regs) -{ - model->handle_interrupt(which, regs, ctr); - - /* If the user has selected an interrupt frequency that is - not exactly the width of the counter, write a new value - into the counter such that it'll overflow after N more - events. */ - if ((reg.need_reset >> which) & 1) - model->reset_ctr(®, which); -} - -static int -op_axp_setup(void) -{ - unsigned long i, e; - - /* Install our interrupt handler into the existing hook. */ - save_perf_irq = perf_irq; - perf_irq = op_handle_interrupt; - - /* Compute the mask of enabled counters. */ - for (i = e = 0; i < model->num_counters; ++i) - if (ctr[i].enabled) - e |= 1 << i; - reg.enable = e; - - /* Pre-compute the values to stuff in the hardware registers. */ - model->reg_setup(®, ctr, &sys); - - /* Configure the registers on all cpus. */ - (void)smp_call_function(model->cpu_setup, ®, 1); - model->cpu_setup(®); - return 0; -} - -static void -op_axp_shutdown(void) -{ - /* Remove our interrupt handler. We may be removing this module. */ - perf_irq = save_perf_irq; -} - -static void -op_axp_cpu_start(void *dummy) -{ - wrperfmon(1, reg.enable); -} - -static int -op_axp_start(void) -{ - (void)smp_call_function(op_axp_cpu_start, NULL, 1); - op_axp_cpu_start(NULL); - return 0; -} - -static inline void -op_axp_cpu_stop(void *dummy) -{ - /* Disable performance monitoring for all counters. */ - wrperfmon(0, -1); -} - -static void -op_axp_stop(void) -{ - (void)smp_call_function(op_axp_cpu_stop, NULL, 1); - op_axp_cpu_stop(NULL); -} - -static int -op_axp_create_files(struct super_block *sb, struct dentry *root) -{ - int i; - - for (i = 0; i < model->num_counters; ++i) { - struct dentry *dir; - char buf[4]; - - snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(sb, root, buf); - - oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled); - oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event); - oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count); - /* Dummies. */ - oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel); - oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user); - oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask); - } - - if (model->can_set_proc_mode) { - oprofilefs_create_ulong(sb, root, "enable_pal", - &sys.enable_pal); - oprofilefs_create_ulong(sb, root, "enable_kernel", - &sys.enable_kernel); - oprofilefs_create_ulong(sb, root, "enable_user", - &sys.enable_user); - } - - return 0; -} - -int __init -oprofile_arch_init(struct oprofile_operations *ops) -{ - struct op_axp_model *lmodel = NULL; - - switch (implver()) { - case IMPLVER_EV4: - lmodel = &op_model_ev4; - break; - case IMPLVER_EV5: - /* 21164PC has a slightly different set of events. - Recognize the chip by the presence of the MAX insns. */ - if (!amask(AMASK_MAX)) - lmodel = &op_model_pca56; - else - lmodel = &op_model_ev5; - break; - case IMPLVER_EV6: - /* 21264A supports ProfileMe. - Recognize the chip by the presence of the CIX insns. */ - if (!amask(AMASK_CIX)) - lmodel = &op_model_ev67; - else - lmodel = &op_model_ev6; - break; - } - - if (!lmodel) - return -ENODEV; - model = lmodel; - - ops->create_files = op_axp_create_files; - ops->setup = op_axp_setup; - ops->shutdown = op_axp_shutdown; - ops->start = op_axp_start; - ops->stop = op_axp_stop; - ops->cpu_type = lmodel->cpu_type; - - printk(KERN_INFO "oprofile: using %s performance monitoring.\n", - lmodel->cpu_type); - - return 0; -} - - -void -oprofile_arch_exit(void) -{ -} diff --git a/arch/alpha/oprofile/op_impl.h b/arch/alpha/oprofile/op_impl.h deleted file mode 100644 index b2b87ae9a353..000000000000 --- a/arch/alpha/oprofile/op_impl.h +++ /dev/null @@ -1,55 +0,0 @@ -/** - * @file arch/alpha/oprofile/op_impl.h - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author Richard Henderson <rth@twiddle.net> - */ - -#ifndef OP_IMPL_H -#define OP_IMPL_H 1 - -/* Per-counter configuration as set via oprofilefs. */ -struct op_counter_config { - unsigned long enabled; - unsigned long event; - unsigned long count; - /* Dummies because I am too lazy to hack the userspace tools. */ - unsigned long kernel; - unsigned long user; - unsigned long unit_mask; -}; - -/* System-wide configuration as set via oprofilefs. */ -struct op_system_config { - unsigned long enable_pal; - unsigned long enable_kernel; - unsigned long enable_user; -}; - -/* Cached values for the various performance monitoring registers. */ -struct op_register_config { - unsigned long enable; - unsigned long mux_select; - unsigned long proc_mode; - unsigned long freq; - unsigned long reset_values; - unsigned long need_reset; -}; - -/* Per-architecture configuration and hooks. */ -struct op_axp_model { - void (*reg_setup) (struct op_register_config *, - struct op_counter_config *, - struct op_system_config *); - void (*cpu_setup) (void *); - void (*reset_ctr) (struct op_register_config *, unsigned long); - void (*handle_interrupt) (unsigned long, struct pt_regs *, - struct op_counter_config *); - char *cpu_type; - unsigned char num_counters; - unsigned char can_set_proc_mode; -}; - -#endif diff --git a/arch/alpha/oprofile/op_model_ev4.c b/arch/alpha/oprofile/op_model_ev4.c deleted file mode 100644 index 18aa9b4f94f1..000000000000 --- a/arch/alpha/oprofile/op_model_ev4.c +++ /dev/null @@ -1,115 +0,0 @@ -/** - * @file arch/alpha/oprofile/op_model_ev4.c - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author Richard Henderson <rth@twiddle.net> - */ - -#include <linux/oprofile.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <asm/ptrace.h> - -#include "op_impl.h" - - -/* Compute all of the registers in preparation for enabling profiling. */ - -static void -ev4_reg_setup(struct op_register_config *reg, - struct op_counter_config *ctr, - struct op_system_config *sys) -{ - unsigned long ctl = 0, count, hilo; - - /* Select desired events. We've mapped the event numbers - such that they fit directly into the event selection fields. - - Note that there is no "off" setting. In both cases we select - the EXTERNAL event source, hoping that it'll be the lowest - frequency, and set the frequency counter to LOW. The interrupts - for these "disabled" counter overflows are ignored by the - interrupt handler. - - This is most irritating, because the hardware *can* enable and - disable the interrupts for these counters independently, but the - wrperfmon interface doesn't allow it. */ - - ctl |= (ctr[0].enabled ? ctr[0].event << 8 : 14 << 8); - ctl |= (ctr[1].enabled ? (ctr[1].event - 16) << 32 : 7ul << 32); - - /* EV4 can not read or write its counter registers. The only - thing one can do at all is see if you overflow and get an - interrupt. We can set the width of the counters, to some - extent. Take the interrupt count selected by the user, - map it onto one of the possible values, and write it back. */ - - count = ctr[0].count; - if (count <= 4096) - count = 4096, hilo = 1; - else - count = 65536, hilo = 0; - ctr[0].count = count; - ctl |= (ctr[0].enabled && hilo) << 3; - - count = ctr[1].count; - if (count <= 256) - count = 256, hilo = 1; - else - count = 4096, hilo = 0; - ctr[1].count = count; - ctl |= (ctr[1].enabled && hilo); - - reg->mux_select = ctl; - - /* Select performance monitoring options. */ - /* ??? Need to come up with some mechanism to trace only - selected processes. EV4 does not have a mechanism to - select kernel or user mode only. For now, enable always. */ - reg->proc_mode = 0; - - /* Frequency is folded into mux_select for EV4. */ - reg->freq = 0; - - /* See above regarding no writes. */ - reg->reset_values = 0; - reg->need_reset = 0; - -} - -/* Program all of the registers in preparation for enabling profiling. */ - -static void -ev4_cpu_setup(void *x) -{ - struct op_register_config *reg = x; - - wrperfmon(2, reg->mux_select); - wrperfmon(3, reg->proc_mode); -} - -static void -ev4_handle_interrupt(unsigned long which, struct pt_regs *regs, - struct op_counter_config *ctr) -{ - /* EV4 can't properly disable counters individually. - Discard "disabled" events now. */ - if (!ctr[which].enabled) - return; - - /* Record the sample. */ - oprofile_add_sample(regs, which); -} - - -struct op_axp_model op_model_ev4 = { - .reg_setup = ev4_reg_setup, - .cpu_setup = ev4_cpu_setup, - .reset_ctr = NULL, - .handle_interrupt = ev4_handle_interrupt, - .cpu_type = "alpha/ev4", - .num_counters = 2, - .can_set_proc_mode = 0, -}; diff --git a/arch/alpha/oprofile/op_model_ev5.c b/arch/alpha/oprofile/op_model_ev5.c deleted file mode 100644 index c32f8a0ad925..000000000000 --- a/arch/alpha/oprofile/op_model_ev5.c +++ /dev/null @@ -1,210 +0,0 @@ -/** - * @file arch/alpha/oprofile/op_model_ev5.c - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author Richard Henderson <rth@twiddle.net> - */ - -#include <linux/oprofile.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <asm/ptrace.h> - -#include "op_impl.h" - - -/* Compute all of the registers in preparation for enabling profiling. - - The 21164 (EV5) and 21164PC (PCA65) vary in the bit placement and - meaning of the "CBOX" events. Given that we don't care about meaning - at this point, arrange for the difference in bit placement to be - handled by common code. */ - -static void -common_reg_setup(struct op_register_config *reg, - struct op_counter_config *ctr, - struct op_system_config *sys, - int cbox1_ofs, int cbox2_ofs) -{ - int i, ctl, reset, need_reset; - - /* Select desired events. The event numbers are selected such - that they map directly into the event selection fields: - - PCSEL0: 0, 1 - PCSEL1: 24-39 - CBOX1: 40-47 - PCSEL2: 48-63 - CBOX2: 64-71 - - There are two special cases, in that CYCLES can be measured - on PCSEL[02], and SCACHE_WRITE can be measured on CBOX[12]. - These event numbers are canonicalizes to their first appearance. */ - - ctl = 0; - for (i = 0; i < 3; ++i) { - unsigned long event = ctr[i].event; - if (!ctr[i].enabled) - continue; - - /* Remap the duplicate events, as described above. */ - if (i == 2) { - if (event == 0) - event = 12+48; - else if (event == 2+41) - event = 4+65; - } - - /* Convert the event numbers onto mux_select bit mask. */ - if (event < 2) - ctl |= event << 31; - else if (event < 24) - /* error */; - else if (event < 40) - ctl |= (event - 24) << 4; - else if (event < 48) - ctl |= (event - 40) << cbox1_ofs | 15 << 4; - else if (event < 64) - ctl |= event - 48; - else if (event < 72) - ctl |= (event - 64) << cbox2_ofs | 15; - } - reg->mux_select = ctl; - - /* Select processor mode. */ - /* ??? Need to come up with some mechanism to trace only selected - processes. For now select from pal, kernel and user mode. */ - ctl = 0; - ctl |= !sys->enable_pal << 9; - ctl |= !sys->enable_kernel << 8; - ctl |= !sys->enable_user << 30; - reg->proc_mode = ctl; - - /* Select interrupt frequencies. Take the interrupt count selected - by the user, and map it onto one of the possible counter widths. - If the user value is in between, compute a value to which the - counter is reset at each interrupt. */ - - ctl = reset = need_reset = 0; - for (i = 0; i < 3; ++i) { - unsigned long max, hilo, count = ctr[i].count; - if (!ctr[i].enabled) - continue; - - if (count <= 256) - count = 256, hilo = 3, max = 256; - else { - max = (i == 2 ? 16384 : 65536); - hilo = 2; - if (count > max) - count = max; - } - ctr[i].count = count; - - ctl |= hilo << (8 - i*2); - reset |= (max - count) << (48 - 16*i); - if (count != max) - need_reset |= 1 << i; - } - reg->freq = ctl; - reg->reset_values = reset; - reg->need_reset = need_reset; -} - -static void -ev5_reg_setup(struct op_register_config *reg, - struct op_counter_config *ctr, - struct op_system_config *sys) -{ - common_reg_setup(reg, ctr, sys, 19, 22); -} - -static void -pca56_reg_setup(struct op_register_config *reg, - struct op_counter_config *ctr, - struct op_system_config *sys) -{ - common_reg_setup(reg, ctr, sys, 8, 11); -} - -/* Program all of the registers in preparation for enabling profiling. */ - -static void -ev5_cpu_setup (void *x) -{ - struct op_register_config *reg = x; - - wrperfmon(2, reg->mux_select); - wrperfmon(3, reg->proc_mode); - wrperfmon(4, reg->freq); - wrperfmon(6, reg->reset_values); -} - -/* CTR is a counter for which the user has requested an interrupt count - in between one of the widths selectable in hardware. Reset the count - for CTR to the value stored in REG->RESET_VALUES. - - For EV5, this means disabling profiling, reading the current values, - masking in the value for the desired register, writing, then turning - profiling back on. - - This can be streamlined if profiling is only enabled for user mode. - In that case we know that the counters are not currently incrementing - (due to being in kernel mode). */ - -static void -ev5_reset_ctr(struct op_register_config *reg, unsigned long ctr) -{ - unsigned long values, mask, not_pk, reset_values; - - mask = (ctr == 0 ? 0xfffful << 48 - : ctr == 1 ? 0xfffful << 32 - : 0x3fff << 16); - - not_pk = 1 << 9 | 1 << 8; - - reset_values = reg->reset_values; - - if ((reg->proc_mode & not_pk) == not_pk) { - values = wrperfmon(5, 0); - values = (reset_values & mask) | (values & ~mask & -2); - wrperfmon(6, values); - } else { - wrperfmon(0, -1); - values = wrperfmon(5, 0); - values = (reset_values & mask) | (values & ~mask & -2); - wrperfmon(6, values); - wrperfmon(1, reg->enable); - } -} - -static void -ev5_handle_interrupt(unsigned long which, struct pt_regs *regs, - struct op_counter_config *ctr) -{ - /* Record the sample. */ - oprofile_add_sample(regs, which); -} - - -struct op_axp_model op_model_ev5 = { - .reg_setup = ev5_reg_setup, - .cpu_setup = ev5_cpu_setup, - .reset_ctr = ev5_reset_ctr, - .handle_interrupt = ev5_handle_interrupt, - .cpu_type = "alpha/ev5", - .num_counters = 3, - .can_set_proc_mode = 1, -}; - -struct op_axp_model op_model_pca56 = { - .reg_setup = pca56_reg_setup, - .cpu_setup = ev5_cpu_setup, - .reset_ctr = ev5_reset_ctr, - .handle_interrupt = ev5_handle_interrupt, - .cpu_type = "alpha/pca56", - .num_counters = 3, - .can_set_proc_mode = 1, -}; diff --git a/arch/alpha/oprofile/op_model_ev6.c b/arch/alpha/oprofile/op_model_ev6.c deleted file mode 100644 index 1c84cc257fc7..000000000000 --- a/arch/alpha/oprofile/op_model_ev6.c +++ /dev/null @@ -1,102 +0,0 @@ -/** - * @file arch/alpha/oprofile/op_model_ev6.c - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author Richard Henderson <rth@twiddle.net> - */ - -#include <linux/oprofile.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <asm/ptrace.h> - -#include "op_impl.h" - - -/* Compute all of the registers in preparation for enabling profiling. */ - -static void -ev6_reg_setup(struct op_register_config *reg, - struct op_counter_config *ctr, - struct op_system_config *sys) -{ - unsigned long ctl, reset, need_reset, i; - - /* Select desired events. We've mapped the event numbers - such that they fit directly into the event selection fields. */ - ctl = 0; - if (ctr[0].enabled && ctr[0].event) - ctl |= (ctr[0].event & 1) << 4; - if (ctr[1].enabled) - ctl |= (ctr[1].event - 2) & 15; - reg->mux_select = ctl; - - /* Select logging options. */ - /* ??? Need to come up with some mechanism to trace only - selected processes. EV6 does not have a mechanism to - select kernel or user mode only. For now, enable always. */ - reg->proc_mode = 0; - - /* EV6 cannot change the width of the counters as with the - other implementations. But fortunately, we can write to - the counters and set the value such that it will overflow - at the right time. */ - reset = need_reset = 0; - for (i = 0; i < 2; ++i) { - unsigned long count = ctr[i].count; - if (!ctr[i].enabled) - continue; - - if (count > 0x100000) - count = 0x100000; - ctr[i].count = count; - reset |= (0x100000 - count) << (i ? 6 : 28); - if (count != 0x100000) - need_reset |= 1 << i; - } - reg->reset_values = reset; - reg->need_reset = need_reset; -} - -/* Program all of the registers in preparation for enabling profiling. */ - -static void -ev6_cpu_setup (void *x) -{ - struct op_register_config *reg = x; - - wrperfmon(2, reg->mux_select); - wrperfmon(3, reg->proc_mode); - wrperfmon(6, reg->reset_values | 3); -} - -/* CTR is a counter for which the user has requested an interrupt count - in between one of the widths selectable in hardware. Reset the count - for CTR to the value stored in REG->RESET_VALUES. */ - -static void -ev6_reset_ctr(struct op_register_config *reg, unsigned long ctr) -{ - wrperfmon(6, reg->reset_values | (1 << ctr)); -} - -static void -ev6_handle_interrupt(unsigned long which, struct pt_regs *regs, - struct op_counter_config *ctr) -{ - /* Record the sample. */ - oprofile_add_sample(regs, which); -} - - -struct op_axp_model op_model_ev6 = { - .reg_setup = ev6_reg_setup, - .cpu_setup = ev6_cpu_setup, - .reset_ctr = ev6_reset_ctr, - .handle_interrupt = ev6_handle_interrupt, - .cpu_type = "alpha/ev6", - .num_counters = 2, - .can_set_proc_mode = 0, -}; diff --git a/arch/alpha/oprofile/op_model_ev67.c b/arch/alpha/oprofile/op_model_ev67.c deleted file mode 100644 index 34a57a126553..000000000000 --- a/arch/alpha/oprofile/op_model_ev67.c +++ /dev/null @@ -1,262 +0,0 @@ -/** - * @file arch/alpha/oprofile/op_model_ev67.c - * - * @remark Copyright 2002 OProfile authors - * @remark Read the file COPYING - * - * @author Richard Henderson <rth@twiddle.net> - * @author Falk Hueffner <falk@debian.org> - */ - -#include <linux/oprofile.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <asm/ptrace.h> - -#include "op_impl.h" - - -/* Compute all of the registers in preparation for enabling profiling. */ - -static void -ev67_reg_setup(struct op_register_config *reg, - struct op_counter_config *ctr, - struct op_system_config *sys) -{ - unsigned long ctl, reset, need_reset, i; - - /* Select desired events. */ - ctl = 1UL << 4; /* Enable ProfileMe mode. */ - - /* The event numbers are chosen so we can use them directly if - PCTR1 is enabled. */ - if (ctr[1].enabled) { - ctl |= (ctr[1].event & 3) << 2; - } else { - if (ctr[0].event == 0) /* cycles */ - ctl |= 1UL << 2; - } - reg->mux_select = ctl; - - /* Select logging options. */ - /* ??? Need to come up with some mechanism to trace only - selected processes. EV67 does not have a mechanism to - select kernel or user mode only. For now, enable always. */ - reg->proc_mode = 0; - - /* EV67 cannot change the width of the counters as with the - other implementations. But fortunately, we can write to - the counters and set the value such that it will overflow - at the right time. */ - reset = need_reset = 0; - for (i = 0; i < 2; ++i) { - unsigned long count = ctr[i].count; - if (!ctr[i].enabled) - continue; - - if (count > 0x100000) - count = 0x100000; - ctr[i].count = count; - reset |= (0x100000 - count) << (i ? 6 : 28); - if (count != 0x100000) - need_reset |= 1 << i; - } - reg->reset_values = reset; - reg->need_reset = need_reset; -} - -/* Program all of the registers in preparation for enabling profiling. */ - -static void -ev67_cpu_setup (void *x) -{ - struct op_register_config *reg = x; - - wrperfmon(2, reg->mux_select); - wrperfmon(3, reg->proc_mode); - wrperfmon(6, reg->reset_values | 3); -} - -/* CTR is a counter for which the user has requested an interrupt count - in between one of the widths selectable in hardware. Reset the count - for CTR to the value stored in REG->RESET_VALUES. */ - -static void -ev67_reset_ctr(struct op_register_config *reg, unsigned long ctr) -{ - wrperfmon(6, reg->reset_values | (1 << ctr)); -} - -/* ProfileMe conditions which will show up as counters. We can also - detect the following, but it seems unlikely that anybody is - interested in counting them: - * Reset - * MT_FPCR (write to floating point control register) - * Arithmetic trap - * Dstream Fault - * Machine Check (ECC fault, etc.) - * OPCDEC (illegal opcode) - * Floating point disabled - * Differentiate between DTB single/double misses and 3 or 4 level - page tables - * Istream access violation - * Interrupt - * Icache Parity Error. - * Instruction killed (nop, trapb) - - Unfortunately, there seems to be no way to detect Dcache and Bcache - misses; the latter could be approximated by making the counter - count Bcache misses, but that is not precise. - - We model this as 20 counters: - * PCTR0 - * PCTR1 - * 9 ProfileMe events, induced by PCTR0 - * 9 ProfileMe events, induced by PCTR1 -*/ - -enum profileme_counters { - PM_STALLED, /* Stalled for at least one cycle - between the fetch and map stages */ - PM_TAKEN, /* Conditional branch taken */ - PM_MISPREDICT, /* Branch caused mispredict trap */ - PM_ITB_MISS, /* ITB miss */ - PM_DTB_MISS, /* DTB miss */ - PM_REPLAY, /* Replay trap */ - PM_LOAD_STORE, /* Load-store order trap */ - PM_ICACHE_MISS, /* Icache miss */ - PM_UNALIGNED, /* Unaligned Load/Store */ - PM_NUM_COUNTERS -}; - -static inline void -op_add_pm(unsigned long pc, int kern, unsigned long counter, - struct op_counter_config *ctr, unsigned long event) -{ - unsigned long fake_counter = 2 + event; - if (counter == 1) - fake_counter += PM_NUM_COUNTERS; - if (ctr[fake_counter].enabled) - oprofile_add_pc(pc, kern, fake_counter); -} - -static void -ev67_handle_interrupt(unsigned long which, struct pt_regs *regs, - struct op_counter_config *ctr) -{ - unsigned long pmpc, pctr_ctl; - int kern = !user_mode(regs); - int mispredict = 0; - union { - unsigned long v; - struct { - unsigned reserved: 30; /* 0-29 */ - unsigned overcount: 3; /* 30-32 */ - unsigned icache_miss: 1; /* 33 */ - unsigned trap_type: 4; /* 34-37 */ - unsigned load_store: 1; /* 38 */ - unsigned trap: 1; /* 39 */ - unsigned mispredict: 1; /* 40 */ - } fields; - } i_stat; - - enum trap_types { - TRAP_REPLAY, - TRAP_INVALID0, - TRAP_DTB_DOUBLE_MISS_3, - TRAP_DTB_DOUBLE_MISS_4, - TRAP_FP_DISABLED, - TRAP_UNALIGNED, - TRAP_DTB_SINGLE_MISS, - TRAP_DSTREAM_FAULT, - TRAP_OPCDEC, - TRAP_INVALID1, - TRAP_MACHINE_CHECK, - TRAP_INVALID2, - TRAP_ARITHMETIC, - TRAP_INVALID3, - TRAP_MT_FPCR, - TRAP_RESET - }; - - pmpc = wrperfmon(9, 0); - /* ??? Don't know how to handle physical-mode PALcode address. */ - if (pmpc & 1) - return; - pmpc &= ~2; /* clear reserved bit */ - - i_stat.v = wrperfmon(8, 0); - if (i_stat.fields.trap) { - switch (i_stat.fields.trap_type) { - case TRAP_INVALID1: - case TRAP_INVALID2: - case TRAP_INVALID3: - /* Pipeline redirection occurred. PMPC points - to PALcode. Recognize ITB miss by PALcode - offset address, and get actual PC from - EXC_ADDR. */ - oprofile_add_pc(regs->pc, kern, which); - if ((pmpc & ((1 << 15) - 1)) == 581) - op_add_pm(regs->pc, kern, which, - ctr, PM_ITB_MISS); - /* Most other bit and counter values will be - those for the first instruction in the - fault handler, so we're done. */ - return; - case TRAP_REPLAY: - op_add_pm(pmpc, kern, which, ctr, - (i_stat.fields.load_store - ? PM_LOAD_STORE : PM_REPLAY)); - break; - case TRAP_DTB_DOUBLE_MISS_3: - case TRAP_DTB_DOUBLE_MISS_4: - case TRAP_DTB_SINGLE_MISS: - op_add_pm(pmpc, kern, which, ctr, PM_DTB_MISS); - break; - case TRAP_UNALIGNED: - op_add_pm(pmpc, kern, which, ctr, PM_UNALIGNED); - break; - case TRAP_INVALID0: - case TRAP_FP_DISABLED: - case TRAP_DSTREAM_FAULT: - case TRAP_OPCDEC: - case TRAP_MACHINE_CHECK: - case TRAP_ARITHMETIC: - case TRAP_MT_FPCR: - case TRAP_RESET: - break; - } - - /* ??? JSR/JMP/RET/COR or HW_JSR/HW_JMP/HW_RET/HW_COR - mispredicts do not set this bit but can be - recognized by the presence of one of these - instructions at the PMPC location with bit 39 - set. */ - if (i_stat.fields.mispredict) { - mispredict = 1; - op_add_pm(pmpc, kern, which, ctr, PM_MISPREDICT); - } - } - - oprofile_add_pc(pmpc, kern, which); - - pctr_ctl = wrperfmon(5, 0); - if (pctr_ctl & (1UL << 27)) - op_add_pm(pmpc, kern, which, ctr, PM_STALLED); - - /* Unfortunately, TAK is undefined on mispredicted branches. - ??? It is also undefined for non-cbranch insns, should - check that. */ - if (!mispredict && pctr_ctl & (1UL << 0)) - op_add_pm(pmpc, kern, which, ctr, PM_TAKEN); -} - -struct op_axp_model op_model_ev67 = { - .reg_setup = ev67_reg_setup, - .cpu_setup = ev67_cpu_setup, - .reset_ctr = ev67_reset_ctr, - .handle_interrupt = ev67_handle_interrupt, - .cpu_type = "alpha/ev67", - .num_counters = 20, - .can_set_proc_mode = 0, -}; |