diff options
Diffstat (limited to 'arch')
412 files changed, 4290 insertions, 4698 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 33687dddd86a..3ab446bd12ef 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -383,7 +383,13 @@ config HAVE_ARCH_JUMP_LABEL_RELATIVE config HAVE_RCU_TABLE_FREE bool -config HAVE_RCU_TABLE_INVALIDATE +config HAVE_RCU_TABLE_NO_INVALIDATE + bool + +config HAVE_MMU_GATHER_PAGE_SIZE + bool + +config HAVE_MMU_GATHER_NO_GATHER bool config ARCH_HAVE_NMI_SAFE_CMPXCHG @@ -901,6 +907,15 @@ config HAVE_ARCH_PREL32_RELOCATIONS config ARCH_USE_MEMREMAP_PROT bool +config LOCK_EVENT_COUNTS + bool "Locking event counts collection" + depends on DEBUG_FS + ---help--- + Enable light-weight counting of various locking related events + in the system with minimal performance impact. This reduces + the chance of application behavior change because of timing + differences. The counts are reported via debugfs. + source "kernel/gcov/Kconfig" source "scripts/gcc-plugins/Kconfig" diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 584a6e114853..f7b19b813a70 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -36,6 +36,7 @@ config ALPHA select ODD_RT_SIGACTION select OLD_SIGSUSPEND select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 + select MMU_GATHER_NO_RANGE help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, @@ -49,13 +50,6 @@ 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 diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild index dc0ab28baca1..70b783333965 100644 --- a/arch/alpha/include/asm/Kbuild +++ b/arch/alpha/include/asm/Kbuild @@ -6,6 +6,7 @@ generic-y += exec.h generic-y += export.h generic-y += fb.h generic-y += irq_work.h +generic-y += kvm_para.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h generic-y += preempt.h diff --git a/arch/alpha/include/asm/rwsem.h b/arch/alpha/include/asm/rwsem.h deleted file mode 100644 index cf8fc8f9a2ed..000000000000 --- a/arch/alpha/include/asm/rwsem.h +++ /dev/null @@ -1,211 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#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 int ___down_read(struct rw_semaphore *sem) -{ - long oldcount; -#ifndef CONFIG_SMP - oldcount = sem->count.counter; - sem->count.counter += 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 - return (oldcount < 0); -} - -static inline void __down_read(struct rw_semaphore *sem) -{ - if (unlikely(___down_read(sem))) - rwsem_down_read_failed(sem); -} - -static inline int __down_read_killable(struct rw_semaphore *sem) -{ - if (unlikely(___down_read(sem))) - if (IS_ERR(rwsem_down_read_failed_killable(sem))) - return -EINTR; - - return 0; -} - -/* - * 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 = atomic_long_read(&sem->count); - do { - new = res + RWSEM_ACTIVE_READ_BIAS; - if (new <= 0) - break; - old = res; - res = atomic_long_cmpxchg(&sem->count, old, new); - } while (res != old); - return res >= 0 ? 1 : 0; -} - -static inline long ___down_write(struct rw_semaphore *sem) -{ - long oldcount; -#ifndef CONFIG_SMP - oldcount = sem->count.counter; - sem->count.counter += 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 - return oldcount; -} - -static inline void __down_write(struct rw_semaphore *sem) -{ - if (unlikely(___down_write(sem))) - rwsem_down_write_failed(sem); -} - -static inline int __down_write_killable(struct rw_semaphore *sem) -{ - if (unlikely(___down_write(sem))) { - if (IS_ERR(rwsem_down_write_failed_killable(sem))) - return -EINTR; - } - - return 0; -} - -/* - * trylock for writing -- returns 1 if successful, 0 if contention - */ -static inline int __down_write_trylock(struct rw_semaphore *sem) -{ - long ret = atomic_long_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.counter; - sem->count.counter -= 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.counter -= RWSEM_ACTIVE_WRITE_BIAS; - count = sem->count.counter; -#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.counter; - sem->count.counter -= 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); -} - -#endif /* __KERNEL__ */ -#endif /* _ALPHA_RWSEM_H */ diff --git a/arch/alpha/include/asm/tlb.h b/arch/alpha/include/asm/tlb.h index 8f5042b61875..4f79e331af5e 100644 --- a/arch/alpha/include/asm/tlb.h +++ b/arch/alpha/include/asm/tlb.h @@ -2,12 +2,6 @@ #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/uapi/asm/kvm_para.h b/arch/alpha/include/uapi/asm/kvm_para.h deleted file mode 100644 index baacc4996d18..000000000000 --- a/arch/alpha/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/kvm_para.h> diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index 63ed39cbd3bd..165f268beafc 100644 --- a/arch/alpha/kernel/syscalls/syscall.tbl +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -463,3 +463,7 @@ 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 diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index df55672c59e6..23e063df5d2c 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -63,9 +63,6 @@ config SCHED_OMIT_FRAME_POINTER config GENERIC_CSUM def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool y - config ARCH_DISCONTIGMEM_ENABLE def_bool n @@ -144,11 +141,11 @@ config ARC_CPU_770 Support for ARC770 core introduced with Rel 4.10 (Summer 2011) This core has a bunch of cool new features: -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4) - Shared Address Spaces (for sharing TLB entries in MMU) + Shared Address Spaces (for sharing TLB entries in MMU) -Caches: New Prog Model, Region Flush -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr -endif #ISA_ARCOMPACT +endif #ISA_ARCOMPACT config ARC_CPU_HS bool "ARC-HS" @@ -198,7 +195,7 @@ config ARC_SMP_HALT_ON_RESET at designated entry point. For other case, all jump to common entry point and spin wait for Master's signal. -endif #SMP +endif #SMP config ARC_MCIP bool "ARConnect Multicore IP (MCIP) Support " @@ -249,7 +246,7 @@ config ARC_CACHE_VIPT_ALIASING bool "Support VIPT Aliasing D$" depends on ARC_HAS_DCACHE && ISA_ARCOMPACT -endif #ARC_CACHE +endif #ARC_CACHE config ARC_HAS_ICCM bool "Use ICCM" @@ -370,7 +367,7 @@ config ARC_FPU_SAVE_RESTORE based on actual usage of FPU by a task. Thus our implemn does this for all tasks in system. -endif #ISA_ARCOMPACT +endif #ISA_ARCOMPACT config ARC_CANT_LLSC def_bool n @@ -386,6 +383,15 @@ config ARC_HAS_SWAPE if ISA_ARCV2 +config ARC_USE_UNALIGNED_MEM_ACCESS + bool "Enable unaligned access in HW" + default y + select HAVE_EFFICIENT_UNALIGNED_ACCESS + help + The ARC HS architecture supports unaligned memory access + which is disabled by default. Enable unaligned access in + hardware and use software to use it + config ARC_HAS_LL64 bool "Insn: 64bit LDD/STD" help @@ -414,7 +420,7 @@ config ARC_IRQ_NO_AUTOSAVE This is programmable and can be optionally disabled in which case software INTERRUPT_PROLOGUE/EPILGUE do the needed work -endif # ISA_ARCV2 +endif # ISA_ARCV2 endmenu # "ARC CPU Configuration" diff --git a/arch/arc/Makefile b/arch/arc/Makefile index df00578c279d..e2b991f75bc5 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -28,6 +28,12 @@ cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape ifdef CONFIG_ISA_ARCV2 +ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS +cflags-y += -munaligned-access +else +cflags-y += -mno-unaligned-access +endif + ifndef CONFIG_ARC_HAS_LL64 cflags-y += -mno-ll64 endif diff --git a/arch/arc/boot/dts/abilis_tb100.dtsi b/arch/arc/boot/dts/abilis_tb100.dtsi index 02410b211433..c0bcd97522bb 100644 --- a/arch/arc/boot/dts/abilis_tb100.dtsi +++ b/arch/arc/boot/dts/abilis_tb100.dtsi @@ -38,7 +38,7 @@ clock-div = <6>; }; - iomux: iomux@FF10601c { + iomux: iomux@ff10601c { /* Port 1 */ pctl_tsin_s0: pctl-tsin-s0 { /* Serial TS-in 0 */ abilis,function = "mis0"; @@ -162,182 +162,182 @@ }; }; - gpioa: gpio@FF140000 { + gpioa: gpio@ff140000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF140000 0x1000>; + reg = <0xff140000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioa"; }; - gpiob: gpio@FF141000 { + gpiob: gpio@ff141000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF141000 0x1000>; + reg = <0xff141000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiob"; }; - gpioc: gpio@FF142000 { + gpioc: gpio@ff142000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF142000 0x1000>; + reg = <0xff142000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioc"; }; - gpiod: gpio@FF143000 { + gpiod: gpio@ff143000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF143000 0x1000>; + reg = <0xff143000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiod"; }; - gpioe: gpio@FF144000 { + gpioe: gpio@ff144000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF144000 0x1000>; + reg = <0xff144000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioe"; }; - gpiof: gpio@FF145000 { + gpiof: gpio@ff145000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF145000 0x1000>; + reg = <0xff145000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiof"; }; - gpiog: gpio@FF146000 { + gpiog: gpio@ff146000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF146000 0x1000>; + reg = <0xff146000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiog"; }; - gpioh: gpio@FF147000 { + gpioh: gpio@ff147000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF147000 0x1000>; + reg = <0xff147000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioh"; }; - gpioi: gpio@FF148000 { + gpioi: gpio@ff148000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF148000 0x1000>; + reg = <0xff148000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <12>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioi"; }; - gpioj: gpio@FF149000 { + gpioj: gpio@ff149000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF149000 0x1000>; + reg = <0xff149000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <32>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioj"; }; - gpiok: gpio@FF14a000 { + gpiok: gpio@ff14a000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14A000 0x1000>; + reg = <0xff14a000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <22>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiok"; }; - gpiol: gpio@FF14b000 { + gpiol: gpio@ff14b000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14B000 0x1000>; + reg = <0xff14b000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <4>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiol"; }; - gpiom: gpio@FF14c000 { + gpiom: gpio@ff14c000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14C000 0x1000>; + reg = <0xff14c000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <4>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiom"; }; - gpion: gpio@FF14d000 { + gpion: gpio@ff14d000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14D000 0x1000>; + reg = <0xff14d000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <5>; diff --git a/arch/arc/boot/dts/abilis_tb100_dvk.dts b/arch/arc/boot/dts/abilis_tb100_dvk.dts index 3acf04db8030..c968e677db46 100644 --- a/arch/arc/boot/dts/abilis_tb100_dvk.dts +++ b/arch/arc/boot/dts/abilis_tb100_dvk.dts @@ -37,27 +37,27 @@ }; soc100 { - uart@FF100000 { + uart@ff100000 { pinctrl-names = "default"; pinctrl-0 = <&pctl_uart0>; }; - ethernet@FE100000 { + ethernet@fe100000 { phy-mode = "rgmii"; }; - i2c0: i2c@FF120000 { + i2c0: i2c@ff120000 { i2c-sda-hold-time-ns = <432>; }; - i2c1: i2c@FF121000 { + i2c1: i2c@ff121000 { i2c-sda-hold-time-ns = <432>; }; - i2c2: i2c@FF122000 { + i2c2: i2c@ff122000 { i2c-sda-hold-time-ns = <432>; }; - i2c3: i2c@FF123000 { + i2c3: i2c@ff123000 { i2c-sda-hold-time-ns = <432>; }; - i2c4: i2c@FF124000 { + i2c4: i2c@ff124000 { i2c-sda-hold-time-ns = <432>; }; diff --git a/arch/arc/boot/dts/abilis_tb101.dtsi b/arch/arc/boot/dts/abilis_tb101.dtsi index f9e7686044eb..6a1615f58f05 100644 --- a/arch/arc/boot/dts/abilis_tb101.dtsi +++ b/arch/arc/boot/dts/abilis_tb101.dtsi @@ -38,7 +38,7 @@ clock-div = <6>; }; - iomux: iomux@FF10601c { + iomux: iomux@ff10601c { /* Port 1 */ pctl_tsin_s0: pctl-tsin-s0 { /* Serial TS-in 0 */ abilis,function = "mis0"; @@ -171,182 +171,182 @@ }; }; - gpioa: gpio@FF140000 { + gpioa: gpio@ff140000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF140000 0x1000>; + reg = <0xff140000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioa"; }; - gpiob: gpio@FF141000 { + gpiob: gpio@ff141000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF141000 0x1000>; + reg = <0xff141000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiob"; }; - gpioc: gpio@FF142000 { + gpioc: gpio@ff142000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF142000 0x1000>; + reg = <0xff142000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioc"; }; - gpiod: gpio@FF143000 { + gpiod: gpio@ff143000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF143000 0x1000>; + reg = <0xff143000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiod"; }; - gpioe: gpio@FF144000 { + gpioe: gpio@ff144000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF144000 0x1000>; + reg = <0xff144000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioe"; }; - gpiof: gpio@FF145000 { + gpiof: gpio@ff145000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF145000 0x1000>; + reg = <0xff145000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiof"; }; - gpiog: gpio@FF146000 { + gpiog: gpio@ff146000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF146000 0x1000>; + reg = <0xff146000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <3>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiog"; }; - gpioh: gpio@FF147000 { + gpioh: gpio@ff147000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF147000 0x1000>; + reg = <0xff147000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <2>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioh"; }; - gpioi: gpio@FF148000 { + gpioi: gpio@ff148000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF148000 0x1000>; + reg = <0xff148000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <12>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioi"; }; - gpioj: gpio@FF149000 { + gpioj: gpio@ff149000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF149000 0x1000>; + reg = <0xff149000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <32>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpioj"; }; - gpiok: gpio@FF14a000 { + gpiok: gpio@ff14a000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14A000 0x1000>; + reg = <0xff14a000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <22>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiok"; }; - gpiol: gpio@FF14b000 { + gpiol: gpio@ff14b000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14B000 0x1000>; + reg = <0xff14b000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <4>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiol"; }; - gpiom: gpio@FF14c000 { + gpiom: gpio@ff14c000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14C000 0x1000>; + reg = <0xff14c000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <4>; gpio-ranges = <&iomux 0 0 0>; gpio-ranges-group-names = "gpiom"; }; - gpion: gpio@FF14d000 { + gpion: gpio@ff14d000 { compatible = "abilis,tb10x-gpio"; interrupt-controller; #interrupt-cells = <1>; interrupt-parent = <&tb10x_ictl>; interrupts = <27 2>; - reg = <0xFF14D000 0x1000>; + reg = <0xff14d000 0x1000>; gpio-controller; #gpio-cells = <2>; abilis,ngpio = <5>; diff --git a/arch/arc/boot/dts/abilis_tb101_dvk.dts b/arch/arc/boot/dts/abilis_tb101_dvk.dts index 37d88c5dd181..05143ce9c120 100644 --- a/arch/arc/boot/dts/abilis_tb101_dvk.dts +++ b/arch/arc/boot/dts/abilis_tb101_dvk.dts @@ -37,27 +37,27 @@ }; soc100 { - uart@FF100000 { + uart@ff100000 { pinctrl-names = "default"; pinctrl-0 = <&pctl_uart0>; }; - ethernet@FE100000 { + ethernet@fe100000 { phy-mode = "rgmii"; }; - i2c0: i2c@FF120000 { + i2c0: i2c@ff120000 { i2c-sda-hold-time-ns = <432>; }; - i2c1: i2c@FF121000 { + i2c1: i2c@ff121000 { i2c-sda-hold-time-ns = <432>; }; - i2c2: i2c@FF122000 { + i2c2: i2c@ff122000 { i2c-sda-hold-time-ns = <432>; }; - i2c3: i2c@FF123000 { + i2c3: i2c@ff123000 { i2c-sda-hold-time-ns = <432>; }; - i2c4: i2c@FF124000 { + i2c4: i2c@ff124000 { i2c-sda-hold-time-ns = <432>; }; diff --git a/arch/arc/boot/dts/abilis_tb10x.dtsi b/arch/arc/boot/dts/abilis_tb10x.dtsi index 3121536b25a3..2fbf1bdfe6de 100644 --- a/arch/arc/boot/dts/abilis_tb10x.dtsi +++ b/arch/arc/boot/dts/abilis_tb10x.dtsi @@ -54,7 +54,7 @@ #size-cells = <1>; device_type = "soc"; ranges = <0xfe000000 0xfe000000 0x02000000 - 0x000F0000 0x000F0000 0x00010000>; + 0x000f0000 0x000f0000 0x00010000>; compatible = "abilis,tb10x", "simple-bus"; pll0: oscillator { @@ -75,10 +75,10 @@ clock-output-names = "ahb_clk"; }; - iomux: iomux@FF10601c { + iomux: iomux@ff10601c { compatible = "abilis,tb10x-iomux"; #gpio-range-cells = <3>; - reg = <0xFF10601c 0x4>; + reg = <0xff10601c 0x4>; }; intc: interrupt-controller { @@ -88,7 +88,7 @@ }; tb10x_ictl: pic@fe002000 { compatible = "abilis,tb10x-ictl"; - reg = <0xFE002000 0x20>; + reg = <0xfe002000 0x20>; interrupt-controller; #interrupt-cells = <2>; interrupt-parent = <&intc>; @@ -96,27 +96,27 @@ 20 21 22 23 24 25 26 27 28 29 30 31>; }; - uart@FF100000 { + uart@ff100000 { compatible = "snps,dw-apb-uart"; - reg = <0xFF100000 0x100>; + reg = <0xff100000 0x100>; clock-frequency = <166666666>; interrupts = <25 8>; reg-shift = <2>; reg-io-width = <4>; interrupt-parent = <&tb10x_ictl>; }; - ethernet@FE100000 { + ethernet@fe100000 { compatible = "snps,dwmac-3.70a","snps,dwmac"; - reg = <0xFE100000 0x1058>; + reg = <0xfe100000 0x1058>; interrupt-parent = <&tb10x_ictl>; interrupts = <6 8>; interrupt-names = "macirq"; clocks = <&ahb_clk>; clock-names = "stmmaceth"; }; - dma@FE000000 { + dma@fe000000 { compatible = "snps,dma-spear1340"; - reg = <0xFE000000 0x400>; + reg = <0xfe000000 0x400>; interrupt-parent = <&tb10x_ictl>; interrupts = <14 8>; dma-channels = <6>; @@ -132,70 +132,70 @@ multi-block = <1 1 1 1 1 1>; }; - i2c0: i2c@FF120000 { + i2c0: i2c@ff120000 { #address-cells = <1>; #size-cells = <0>; compatible = "snps,designware-i2c"; - reg = <0xFF120000 0x1000>; + reg = <0xff120000 0x1000>; interrupt-parent = <&tb10x_ictl>; interrupts = <12 8>; clocks = <&ahb_clk>; }; - i2c1: i2c@FF121000 { + i2c1: i2c@ff121000 { #address-cells = <1>; #size-cells = <0>; compatible = "snps,designware-i2c"; - reg = <0xFF121000 0x1000>; + reg = <0xff121000 0x1000>; interrupt-parent = <&tb10x_ictl>; interrupts = <12 8>; clocks = <&ahb_clk>; }; - i2c2: i2c@FF122000 { + i2c2: i2c@ff122000 { #address-cells = <1>; #size-cells = <0>; compatible = "snps,designware-i2c"; - reg = <0xFF122000 0x1000>; + reg = <0xff122000 0x1000>; interrupt-parent = <&tb10x_ictl>; interrupts = <12 8>; clocks = <&ahb_clk>; }; - i2c3: i2c@FF123000 { + i2c3: i2c@ff123000 { #address-cells = <1>; #size-cells = <0>; compatible = "snps,designware-i2c"; - reg = <0xFF123000 0x1000>; + reg = <0xff123000 0x1000>; interrupt-parent = <&tb10x_ictl>; interrupts = <12 8>; clocks = <&ahb_clk>; }; - i2c4: i2c@FF124000 { + i2c4: i2c@ff124000 { #address-cells = <1>; #size-cells = <0>; compatible = "snps,designware-i2c"; - reg = <0xFF124000 0x1000>; + reg = <0xff124000 0x1000>; interrupt-parent = <&tb10x_ictl>; interrupts = <12 8>; clocks = <&ahb_clk>; }; - spi0: spi@0xFE010000 { + spi0: spi@fe010000 { #address-cells = <1>; #size-cells = <0>; cell-index = <0>; compatible = "abilis,tb100-spi"; num-cs = <1>; - reg = <0xFE010000 0x20>; + reg = <0xfe010000 0x20>; interrupt-parent = <&tb10x_ictl>; interrupts = <26 8>; clocks = <&ahb_clk>; }; - spi1: spi@0xFE011000 { + spi1: spi@fe011000 { #address-cells = <1>; #size-cells = <0>; cell-index = <1>; compatible = "abilis,tb100-spi"; num-cs = <2>; - reg = <0xFE011000 0x20>; + reg = <0xfe011000 0x20>; interrupt-parent = <&tb10x_ictl>; interrupts = <10 8>; clocks = <&ahb_clk>; @@ -226,23 +226,23 @@ interrupts = <20 2>, <19 2>; interrupt-names = "cmd_irq", "event_irq"; }; - tb10x_mdsc0: tb10x-mdscr@FF300000 { + tb10x_mdsc0: tb10x-mdscr@ff300000 { compatible = "abilis,tb100-mdscr"; - reg = <0xFF300000 0x7000>; + reg = <0xff300000 0x7000>; tb100-mdscr-manage-tsin; }; - tb10x_mscr0: tb10x-mdscr@FF307000 { + tb10x_mscr0: tb10x-mdscr@ff307000 { compatible = "abilis,tb100-mdscr"; - reg = <0xFF307000 0x7000>; + reg = <0xff307000 0x7000>; }; tb10x_scr0: tb10x-mdscr@ff30e000 { compatible = "abilis,tb100-mdscr"; - reg = <0xFF30e000 0x4000>; + reg = <0xff30e000 0x4000>; tb100-mdscr-manage-tsin; }; tb10x_scr1: tb10x-mdscr@ff312000 { compatible = "abilis,tb100-mdscr"; - reg = <0xFF312000 0x4000>; + reg = <0xff312000 0x4000>; tb100-mdscr-manage-tsin; }; tb10x_wfb: tb10x-wfb@ff319000 { diff --git a/arch/arc/boot/dts/axc001.dtsi b/arch/arc/boot/dts/axc001.dtsi index fdc266504ada..37be3bf03ad6 100644 --- a/arch/arc/boot/dts/axc001.dtsi +++ b/arch/arc/boot/dts/axc001.dtsi @@ -41,7 +41,7 @@ * this GPIO block ORs all interrupts on CPU card (creg,..) * to uplink only 1 IRQ to ARC core intc */ - dw-apb-gpio@0x2000 { + dw-apb-gpio@2000 { compatible = "snps,dw-apb-gpio"; reg = < 0x2000 0x80 >; #address-cells = <1>; @@ -60,7 +60,7 @@ }; }; - debug_uart: dw-apb-uart@0x5000 { + debug_uart: dw-apb-uart@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; clock-frequency = <33333000>; @@ -88,7 +88,7 @@ * avoid duplicating the MB dtsi file given that IRQ from * this intc to cpu intc are different for axs101 and axs103 */ - mb_intc: dw-apb-ictl@0xe0012000 { + mb_intc: dw-apb-ictl@e0012000 { #interrupt-cells = <1>; compatible = "snps,dw-apb-ictl"; reg = < 0x0 0xe0012000 0x0 0x200 >; diff --git a/arch/arc/boot/dts/axc003.dtsi b/arch/arc/boot/dts/axc003.dtsi index d75d65ddf8e3..effa37536d7a 100644 --- a/arch/arc/boot/dts/axc003.dtsi +++ b/arch/arc/boot/dts/axc003.dtsi @@ -55,7 +55,7 @@ * this GPIO block ORs all interrupts on CPU card (creg,..) * to uplink only 1 IRQ to ARC core intc */ - dw-apb-gpio@0x2000 { + dw-apb-gpio@2000 { compatible = "snps,dw-apb-gpio"; reg = < 0x2000 0x80 >; #address-cells = <1>; @@ -74,7 +74,7 @@ }; }; - debug_uart: dw-apb-uart@0x5000 { + debug_uart: dw-apb-uart@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; clock-frequency = <33333000>; @@ -102,19 +102,19 @@ * external DMA buffer located outside of IOC aperture. */ axs10x_mb { - ethernet@0x18000 { + ethernet@18000 { dma-coherent; }; - ehci@0x40000 { + ehci@40000 { dma-coherent; }; - ohci@0x60000 { + ohci@60000 { dma-coherent; }; - mmc@0x15000 { + mmc@15000 { dma-coherent; }; }; @@ -132,7 +132,7 @@ * avoid duplicating the MB dtsi file given that IRQ from * this intc to cpu intc are different for axs101 and axs103 */ - mb_intc: dw-apb-ictl@0xe0012000 { + mb_intc: dw-apb-ictl@e0012000 { #interrupt-cells = <1>; compatible = "snps,dw-apb-ictl"; reg = < 0x0 0xe0012000 0x0 0x200 >; @@ -153,7 +153,7 @@ #size-cells = <2>; ranges; /* - * Move frame buffer out of IOC aperture (0x8z-0xAz). + * Move frame buffer out of IOC aperture (0x8z-0xaz). */ frame_buffer: frame_buffer@be000000 { compatible = "shared-dma-pool"; diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi index a05bb737ea63..e401e59f6180 100644 --- a/arch/arc/boot/dts/axc003_idu.dtsi +++ b/arch/arc/boot/dts/axc003_idu.dtsi @@ -62,7 +62,7 @@ * this GPIO block ORs all interrupts on CPU card (creg,..) * to uplink only 1 IRQ to ARC core intc */ - dw-apb-gpio@0x2000 { + dw-apb-gpio@2000 { compatible = "snps,dw-apb-gpio"; reg = < 0x2000 0x80 >; #address-cells = <1>; @@ -81,7 +81,7 @@ }; }; - debug_uart: dw-apb-uart@0x5000 { + debug_uart: dw-apb-uart@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; clock-frequency = <33333000>; @@ -109,19 +109,19 @@ * external DMA buffer located outside of IOC aperture. */ axs10x_mb { - ethernet@0x18000 { + ethernet@18000 { dma-coherent; }; - ehci@0x40000 { + ehci@40000 { dma-coherent; }; - ohci@0x60000 { + ohci@60000 { dma-coherent; }; - mmc@0x15000 { + mmc@15000 { dma-coherent; }; }; @@ -138,7 +138,7 @@ * avoid duplicating the MB dtsi file given that IRQ from * this intc to cpu intc are different for axs101 and axs103 */ - mb_intc: dw-apb-ictl@0xe0012000 { + mb_intc: dw-apb-ictl@e0012000 { #interrupt-cells = <1>; compatible = "snps,dw-apb-ictl"; reg = < 0x0 0xe0012000 0x0 0x200 >; @@ -159,7 +159,7 @@ #size-cells = <2>; ranges; /* - * Move frame buffer out of IOC aperture (0x8z-0xAz). + * Move frame buffer out of IOC aperture (0x8z-0xaz). */ frame_buffer: frame_buffer@be000000 { compatible = "shared-dma-pool"; diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi index 37bafd44e36d..4ead6dc9af2f 100644 --- a/arch/arc/boot/dts/axs10x_mb.dtsi +++ b/arch/arc/boot/dts/axs10x_mb.dtsi @@ -72,7 +72,7 @@ }; }; - gmac: ethernet@0x18000 { + gmac: ethernet@18000 { #interrupt-cells = <1>; compatible = "snps,dwmac"; reg = < 0x18000 0x2000 >; @@ -88,13 +88,13 @@ mac-address = [00 00 00 00 00 00]; /* Filled in by U-Boot */ }; - ehci@0x40000 { + ehci@40000 { compatible = "generic-ehci"; reg = < 0x40000 0x100 >; interrupts = < 8 >; }; - ohci@0x60000 { + ohci@60000 { compatible = "generic-ohci"; reg = < 0x60000 0x100 >; interrupts = < 8 >; @@ -118,7 +118,7 @@ * dw_mci_pltfm_prepare_command() is used in generic platform * code. */ - mmc@0x15000 { + mmc@15000 { compatible = "altr,socfpga-dw-mshc"; reg = < 0x15000 0x400 >; fifo-depth = < 16 >; @@ -129,7 +129,7 @@ bus-width = < 4 >; }; - uart@0x20000 { + uart@20000 { compatible = "snps,dw-apb-uart"; reg = <0x20000 0x100>; clock-frequency = <33333333>; @@ -139,7 +139,7 @@ reg-io-width = <4>; }; - uart@0x21000 { + uart@21000 { compatible = "snps,dw-apb-uart"; reg = <0x21000 0x100>; clock-frequency = <33333333>; @@ -150,7 +150,7 @@ }; /* UART muxed with USB data port (ttyS3) */ - uart@0x22000 { + uart@22000 { compatible = "snps,dw-apb-uart"; reg = <0x22000 0x100>; clock-frequency = <33333333>; @@ -160,7 +160,7 @@ reg-io-width = <4>; }; - i2c@0x1d000 { + i2c@1d000 { compatible = "snps,designware-i2c"; reg = <0x1d000 0x100>; clock-frequency = <400000>; @@ -177,7 +177,7 @@ #sound-dai-cells = <0>; }; - i2c@0x1f000 { + i2c@1f000 { compatible = "snps,designware-i2c"; #address-cells = <1>; #size-cells = <0>; @@ -218,13 +218,13 @@ }; }; - eeprom@0x54{ + eeprom@54{ compatible = "atmel,24c01"; reg = <0x54>; pagesize = <0x8>; }; - eeprom@0x57{ + eeprom@57{ compatible = "atmel,24c04"; reg = <0x57>; pagesize = <0x8>; diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index 43f17b51ee89..7425bb0f2d1b 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -18,8 +18,8 @@ model = "snps,hsdk"; compatible = "snps,hsdk"; - #address-cells = <1>; - #size-cells = <1>; + #address-cells = <2>; + #size-cells = <2>; chosen { bootargs = "earlycon=uart8250,mmio32,0xf0005000,115200n8 console=ttyS0,115200n8 debug print-fatal-signals=1"; @@ -105,17 +105,17 @@ #size-cells = <1>; interrupt-parent = <&idu_intc>; - ranges = <0x00000000 0xf0000000 0x10000000>; + ranges = <0x00000000 0x0 0xf0000000 0x10000000>; cgu_rst: reset-controller@8a0 { compatible = "snps,hsdk-reset"; #reset-cells = <1>; - reg = <0x8A0 0x4>, <0xFF0 0x4>; + reg = <0x8a0 0x4>, <0xff0 0x4>; }; core_clk: core-clk@0 { compatible = "snps,hsdk-core-pll-clock"; - reg = <0x00 0x10>, <0x14B8 0x4>; + reg = <0x00 0x10>, <0x14b8 0x4>; #clock-cells = <0>; clocks = <&input_clk>; @@ -167,6 +167,18 @@ #clock-cells = <0>; }; + dmac_core_clk: dmac-core-clk { + compatible = "fixed-clock"; + clock-frequency = <400000000>; + #clock-cells = <0>; + }; + + dmac_cfg_clk: dmac-gpu-cfg-clk { + compatible = "fixed-clock"; + clock-frequency = <200000000>; + #clock-cells = <0>; + }; + gmac: ethernet@8000 { #interrupt-cells = <1>; compatible = "snps,dwmac"; @@ -200,6 +212,7 @@ compatible = "snps,hsdk-v1.0-ohci", "generic-ohci"; reg = <0x60000 0x100>; interrupts = <15>; + resets = <&cgu_rst HSDK_USB_RESET>; dma-coherent; }; @@ -207,6 +220,7 @@ compatible = "snps,hsdk-v1.0-ehci", "generic-ehci"; reg = <0x40000 0x100>; interrupts = <15>; + resets = <&cgu_rst HSDK_USB_RESET>; dma-coherent; }; @@ -237,12 +251,28 @@ reg = <0>; }; }; + + dmac: dmac@80000 { + compatible = "snps,axi-dma-1.01a"; + reg = <0x80000 0x400>; + interrupts = <27>; + clocks = <&dmac_core_clk>, <&dmac_cfg_clk>; + clock-names = "core-clk", "cfgr-clk"; + + dma-channels = <4>; + snps,dma-masters = <2>; + snps,data-width = <3>; + snps,block-size = <4096 4096 4096 4096>; + snps,priority = <0 1 2 3>; + snps,axi-max-burst-len = <16>; + }; }; memory@80000000 { - #address-cells = <1>; - #size-cells = <1>; + #address-cells = <2>; + #size-cells = <2>; device_type = "memory"; - reg = <0x80000000 0x40000000>; /* 1 GiB */ + reg = <0x0 0x80000000 0x0 0x40000000>; /* 1 GB lowmem */ + /* 0x1 0x00000000 0x0 0x40000000>; 1 GB highmem */ }; }; diff --git a/arch/arc/boot/dts/vdk_axc003.dtsi b/arch/arc/boot/dts/vdk_axc003.dtsi index 0fd6ba985b16..84e8766c8ca2 100644 --- a/arch/arc/boot/dts/vdk_axc003.dtsi +++ b/arch/arc/boot/dts/vdk_axc003.dtsi @@ -36,7 +36,7 @@ #interrupt-cells = <1>; }; - debug_uart: dw-apb-uart@0x5000 { + debug_uart: dw-apb-uart@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; clock-frequency = <2403200>; @@ -49,7 +49,7 @@ }; - mb_intc: dw-apb-ictl@0xe0012000 { + mb_intc: dw-apb-ictl@e0012000 { #interrupt-cells = <1>; compatible = "snps,dw-apb-ictl"; reg = < 0xe0012000 0x200 >; diff --git a/arch/arc/boot/dts/vdk_axc003_idu.dtsi b/arch/arc/boot/dts/vdk_axc003_idu.dtsi index 28956f9a9f3d..eb7e705e8a27 100644 --- a/arch/arc/boot/dts/vdk_axc003_idu.dtsi +++ b/arch/arc/boot/dts/vdk_axc003_idu.dtsi @@ -44,7 +44,7 @@ #interrupt-cells = <1>; }; - debug_uart: dw-apb-uart@0x5000 { + debug_uart: dw-apb-uart@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; clock-frequency = <2403200>; @@ -57,7 +57,7 @@ }; - mb_intc: dw-apb-ictl@0xe0012000 { + mb_intc: dw-apb-ictl@e0012000 { #interrupt-cells = <1>; compatible = "snps,dw-apb-ictl"; reg = < 0xe0012000 0x200 >; diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi index 48bb4b4cd234..925d5cc95dbb 100644 --- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi +++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi @@ -36,7 +36,7 @@ }; }; - ethernet@0x18000 { + ethernet@18000 { #interrupt-cells = <1>; compatible = "snps,dwmac"; reg = < 0x18000 0x2000 >; @@ -49,13 +49,13 @@ clock-names = "stmmaceth"; }; - ehci@0x40000 { + ehci@40000 { compatible = "generic-ehci"; reg = < 0x40000 0x100 >; interrupts = < 8 >; }; - uart@0x20000 { + uart@20000 { compatible = "snps,dw-apb-uart"; reg = <0x20000 0x100>; clock-frequency = <2403200>; @@ -65,7 +65,7 @@ reg-io-width = <4>; }; - uart@0x21000 { + uart@21000 { compatible = "snps,dw-apb-uart"; reg = <0x21000 0x100>; clock-frequency = <2403200>; @@ -75,7 +75,7 @@ reg-io-width = <4>; }; - uart@0x22000 { + uart@22000 { compatible = "snps,dw-apb-uart"; reg = <0x22000 0x100>; clock-frequency = <2403200>; @@ -101,7 +101,7 @@ interrupt-names = "arc_ps2_irq"; }; - mmc@0x15000 { + mmc@15000 { compatible = "snps,dw-mshc"; reg = <0x15000 0x400>; fifo-depth = <1024>; @@ -117,11 +117,11 @@ * Embedded Vision subsystem UIO mappings; only relevant for EV VDK * * This node is intentionally put outside of MB above becase - * it maps areas outside of MB's 0xEz-0xFz. + * it maps areas outside of MB's 0xez-0xfz. */ - uio_ev: uio@0xD0000000 { + uio_ev: uio@d0000000 { compatible = "generic-uio"; - reg = <0xD0000000 0x2000 0xD1000000 0x2000 0x90000000 0x10000000 0xC0000000 0x10000000>; + reg = <0xd0000000 0x2000 0xd1000000 0x2000 0x90000000 0x10000000 0xc0000000 0x10000000>; reg-names = "ev_gsa", "ev_ctrl", "ev_shared_mem", "ev_code_mem"; interrupt-parent = <&mb_intc>; interrupts = <23>; diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index 6fd3d29546af..0e5fd29ed238 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -8,6 +8,7 @@ CONFIG_NAMESPACES=y # CONFIG_UTS_NS is not set # CONFIG_PID_NS is not set CONFIG_BLK_DEV_INITRD=y +CONFIG_BLK_DEV_RAM=y CONFIG_EMBEDDED=y CONFIG_PERF_EVENTS=y # CONFIG_VM_EVENT_COUNTERS is not set diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild index b41f8881ecc8..decc306a3b52 100644 --- a/arch/arc/include/asm/Kbuild +++ b/arch/arc/include/asm/Kbuild @@ -11,6 +11,7 @@ generic-y += hardirq.h generic-y += hw_irq.h generic-y += irq_regs.h generic-y += irq_work.h +generic-y += kvm_para.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h index a27eafdc8260..a7d4be87b2f0 100644 --- a/arch/arc/include/asm/arcregs.h +++ b/arch/arc/include/asm/arcregs.h @@ -82,6 +82,7 @@ #define ECR_V_DTLB_MISS 0x05 #define ECR_V_PROTV 0x06 #define ECR_V_TRAP 0x09 +#define ECR_V_MISALIGN 0x0d #endif /* DTLB Miss and Protection Violation Cause Codes */ @@ -167,14 +168,6 @@ struct bcr_mpy { #endif }; -struct bcr_extn_xymem { -#ifdef CONFIG_CPU_BIG_ENDIAN - unsigned int ram_org:2, num_banks:4, bank_sz:4, ver:8; -#else - unsigned int ver:8, bank_sz:4, num_banks:4, ram_org:2; -#endif -}; - struct bcr_iccm_arcompact { #ifdef CONFIG_CPU_BIG_ENDIAN unsigned int base:16, pad:5, sz:3, ver:8; @@ -312,7 +305,7 @@ struct cpuinfo_arc { struct cpuinfo_arc_bpu bpu; struct bcr_identity core; struct bcr_isa_arcv2 isa; - const char *details, *name; + const char *release, *name; unsigned int vec_base; struct cpuinfo_arc_ccm iccm, dccm; struct { @@ -322,7 +315,6 @@ struct cpuinfo_arc { timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4; } extn; struct bcr_mpy extn_mpy; - struct bcr_extn_xymem extn_xymem; }; extern struct cpuinfo_arc cpuinfo_arc700[]; diff --git a/arch/arc/include/asm/irqflags-arcv2.h b/arch/arc/include/asm/irqflags-arcv2.h index 8a4f77ea3238..e66d0339e1d8 100644 --- a/arch/arc/include/asm/irqflags-arcv2.h +++ b/arch/arc/include/asm/irqflags-arcv2.h @@ -44,7 +44,13 @@ #define ARCV2_IRQ_DEF_PRIO 1 /* seed value for status register */ -#define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | STATUS_AD_MASK | \ +#ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS +#define __AD_ENB STATUS_AD_MASK +#else +#define __AD_ENB 0 +#endif + +#define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | __AD_ENB | \ (ARCV2_IRQ_DEF_PRIO << 1)) #ifndef __ASSEMBLY__ diff --git a/arch/arc/include/asm/perf_event.h b/arch/arc/include/asm/perf_event.h index 6958545390f0..9cd7ee4fad39 100644 --- a/arch/arc/include/asm/perf_event.h +++ b/arch/arc/include/asm/perf_event.h @@ -105,10 +105,10 @@ static const char * const arc_pmu_ev_hw_map[] = { [PERF_COUNT_HW_INSTRUCTIONS] = "iall", /* All jump instructions that are taken */ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmptak", - [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */ #ifdef CONFIG_ISA_ARCV2 [PERF_COUNT_HW_BRANCH_MISSES] = "bpmp", #else + [PERF_COUNT_ARC_BPOK] = "bpok", /* NP-NT, PT-T, PNT-NT */ [PERF_COUNT_HW_BRANCH_MISSES] = "bpfail", /* NP-T, PT-NT, PNT-T */ #endif [PERF_COUNT_ARC_LDC] = "imemrdc", /* Instr: mem read cached */ diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h index 2ba04a7db621..daa914da7968 100644 --- a/arch/arc/include/asm/spinlock.h +++ b/arch/arc/include/asm/spinlock.h @@ -21,8 +21,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) { unsigned int val; - smp_mb(); - __asm__ __volatile__( "1: llock %[val], [%[slock]] \n" " breq %[val], %[LOCKED], 1b \n" /* spin while LOCKED */ @@ -34,6 +32,14 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) [LOCKED] "r" (__ARCH_SPIN_LOCK_LOCKED__) : "memory", "cc"); + /* + * ACQUIRE barrier to ensure load/store after taking the lock + * don't "bleed-up" out of the critical section (leak-in is allowed) + * http://www.spinics.net/lists/kernel/msg2010409.html + * + * ARCv2 only has load-load, store-store and all-all barrier + * thus need the full all-all barrier + */ smp_mb(); } @@ -42,8 +48,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock) { unsigned int val, got_it = 0; - smp_mb(); - __asm__ __volatile__( "1: llock %[val], [%[slock]] \n" " breq %[val], %[LOCKED], 4f \n" /* already LOCKED, just bail */ @@ -67,9 +71,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock) { smp_mb(); - lock->slock = __ARCH_SPIN_LOCK_UNLOCKED__; - - smp_mb(); + WRITE_ONCE(lock->slock, __ARCH_SPIN_LOCK_UNLOCKED__); } /* @@ -81,8 +83,6 @@ static inline void arch_read_lock(arch_rwlock_t *rw) { unsigned int val; - smp_mb(); - /* * zero means writer holds the lock exclusively, deny Reader. * Otherwise grant lock to first/subseq reader @@ -113,8 +113,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) { unsigned int val, got_it = 0; - smp_mb(); - __asm__ __volatile__( "1: llock %[val], [%[rwlock]] \n" " brls %[val], %[WR_LOCKED], 4f\n" /* <= 0: already write locked, bail */ @@ -140,8 +138,6 @@ static inline void arch_write_lock(arch_rwlock_t *rw) { unsigned int val; - smp_mb(); - /* * If reader(s) hold lock (lock < __ARCH_RW_LOCK_UNLOCKED__), * deny writer. Otherwise if unlocked grant to writer @@ -175,8 +171,6 @@ static inline int arch_write_trylock(arch_rwlock_t *rw) { unsigned int val, got_it = 0; - smp_mb(); - __asm__ __volatile__( "1: llock %[val], [%[rwlock]] \n" " brne %[val], %[UNLOCKED], 4f \n" /* !UNLOCKED, bail */ @@ -217,17 +211,13 @@ static inline void arch_read_unlock(arch_rwlock_t *rw) : [val] "=&r" (val) : [rwlock] "r" (&(rw->counter)) : "memory", "cc"); - - smp_mb(); } static inline void arch_write_unlock(arch_rwlock_t *rw) { smp_mb(); - rw->counter = __ARCH_RW_LOCK_UNLOCKED__; - - smp_mb(); + WRITE_ONCE(rw->counter, __ARCH_RW_LOCK_UNLOCKED__); } #else /* !CONFIG_ARC_HAS_LLSC */ @@ -237,10 +227,9 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) unsigned int val = __ARCH_SPIN_LOCK_LOCKED__; /* - * This smp_mb() is technically superfluous, we only need the one - * after the lock for providing the ACQUIRE semantics. - * However doing the "right" thing was regressing hackbench - * so keeping this, pending further investigation + * Per lkmm, smp_mb() is only required after _lock (and before_unlock) + * for ACQ and REL semantics respectively. However EX based spinlocks + * need the extra smp_mb to workaround a hardware quirk. */ smp_mb(); @@ -257,14 +246,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock) #endif : "memory"); - /* - * ACQUIRE barrier to ensure load/store after taking the lock - * don't "bleed-up" out of the critical section (leak-in is allowed) - * http://www.spinics.net/lists/kernel/msg2010409.html - * - * ARCv2 only has load-load, store-store and all-all barrier - * thus need the full all-all barrier - */ smp_mb(); } @@ -309,8 +290,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock) : "memory"); /* - * superfluous, but keeping for now - see pairing version in - * arch_spin_lock above + * see pairing version/comment in arch_spin_lock above */ smp_mb(); } @@ -344,7 +324,6 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) arch_spin_unlock(&(rw->lock_mutex)); local_irq_restore(flags); - smp_mb(); return ret; } diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h index 29de09804306..c7a4201ed62b 100644 --- a/arch/arc/include/asm/syscall.h +++ b/arch/arc/include/asm/syscall.h @@ -55,12 +55,11 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, */ static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) + unsigned long *args) { unsigned long *inside_ptregs = &(regs->r0); - inside_ptregs -= i; - - BUG_ON((i + n) > 6); + unsigned int n = 6; + unsigned int i = 0; while (n--) { args[i++] = (*inside_ptregs); diff --git a/arch/arc/include/asm/tlb.h b/arch/arc/include/asm/tlb.h index a9db5f62aaf3..90cac97643a4 100644 --- a/arch/arc/include/asm/tlb.h +++ b/arch/arc/include/asm/tlb.h @@ -9,38 +9,6 @@ #ifndef _ASM_ARC_TLB_H #define _ASM_ARC_TLB_H -#define tlb_flush(tlb) \ -do { \ - if (tlb->fullmm) \ - flush_tlb_mm((tlb)->mm); \ -} while (0) - -/* - * This pair is called at time of munmap/exit to flush cache and TLB entries - * for mappings being torn down. - * 1) cache-flush part -implemented via tlb_start_vma( ) for VIPT aliasing D$ - * 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range - * - * Note, read http://lkml.org/lkml/2004/1/15/6 - */ -#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING -#define tlb_start_vma(tlb, vma) -#else -#define tlb_start_vma(tlb, vma) \ -do { \ - if (!tlb->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ -} while(0) -#endif - -#define tlb_end_vma(tlb, vma) \ -do { \ - if (!tlb->fullmm) \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define __tlb_remove_tlb_entry(tlb, ptep, address) - #include <linux/pagemap.h> #include <asm-generic/tlb.h> diff --git a/arch/arc/include/uapi/asm/Kbuild b/arch/arc/include/uapi/asm/Kbuild index 755bb11323d8..1c72f04ff75d 100644 --- a/arch/arc/include/uapi/asm/Kbuild +++ b/arch/arc/include/uapi/asm/Kbuild @@ -1,2 +1 @@ -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S index 30e090625916..8f6e0447dd17 100644 --- a/arch/arc/kernel/head.S +++ b/arch/arc/kernel/head.S @@ -54,7 +54,12 @@ ; gcc 7.3.1 (ARC GNU 2018.03) onwards generates unaligned access ; by default lr r5, [status32] +#ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS bset r5, r5, STATUS_AD_BIT +#else + ; Although disabled at reset, bootloader might have enabled it + bclr r5, r5, STATUS_AD_BIT +#endif kflag r5 #endif .endm @@ -106,6 +111,7 @@ ENTRY(stext) ; r2 = pointer to uboot provided cmdline or external DTB in mem ; These are handled later in handle_uboot_args() st r0, [@uboot_tag] + st r1, [@uboot_magic] st r2, [@uboot_arg] ; setup "current" tsk and optionally cache it in dedicated r25 diff --git a/arch/arc/kernel/intc-arcv2.c b/arch/arc/kernel/intc-arcv2.c index cf18b3e5a934..c0d0124de089 100644 --- a/arch/arc/kernel/intc-arcv2.c +++ b/arch/arc/kernel/intc-arcv2.c @@ -95,7 +95,7 @@ void arc_init_IRQ(void) /* setup status32, don't enable intr yet as kernel doesn't want */ tmp = read_aux_reg(ARC_REG_STATUS32); - tmp |= STATUS_AD_MASK | (ARCV2_IRQ_DEF_PRIO << 1); + tmp |= ARCV2_IRQ_DEF_PRIO << 1; tmp &= ~STATUS_IE_MASK; asm volatile("kflag %0 \n"::"r"(tmp)); } diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 7b2340996cf8..a9c88b7e9182 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -36,6 +36,7 @@ unsigned int intr_to_DE_cnt; /* Part of U-boot ABI: see head.S */ int __initdata uboot_tag; +int __initdata uboot_magic; char __initdata *uboot_arg; const struct machine_desc *machine_desc; @@ -44,29 +45,24 @@ struct task_struct *_current_task[NR_CPUS]; /* For stack switching */ struct cpuinfo_arc cpuinfo_arc700[NR_CPUS]; -static const struct id_to_str arc_cpu_rel[] = { +static const struct id_to_str arc_legacy_rel[] = { + /* ID.ARCVER, Release */ #ifdef CONFIG_ISA_ARCOMPACT - { 0x34, "R4.10"}, - { 0x35, "R4.11"}, + { 0x34, "R4.10"}, + { 0x35, "R4.11"}, #else - { 0x51, "R2.0" }, - { 0x52, "R2.1" }, - { 0x53, "R3.0" }, - { 0x54, "R3.10a" }, + { 0x51, "R2.0" }, + { 0x52, "R2.1" }, + { 0x53, "R3.0" }, #endif - { 0x00, NULL } + { 0x00, NULL } }; -static const struct id_to_str arc_cpu_nm[] = { -#ifdef CONFIG_ISA_ARCOMPACT - { 0x20, "ARC 600" }, - { 0x30, "ARC 770" }, /* 750 identified seperately */ -#else - { 0x40, "ARC EM" }, - { 0x50, "ARC HS38" }, - { 0x54, "ARC HS48" }, -#endif - { 0x00, "Unknown" } +static const struct id_to_str arc_cpu_rel[] = { + /* UARCH.MAJOR, Release */ + { 0, "R3.10a"}, + { 1, "R3.50a"}, + { 0xFF, NULL } }; static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu) @@ -116,31 +112,72 @@ static void read_decode_ccm_bcr(struct cpuinfo_arc *cpu) } } +static void decode_arc_core(struct cpuinfo_arc *cpu) +{ + struct bcr_uarch_build_arcv2 uarch; + const struct id_to_str *tbl; + + /* + * Up until (including) the first core4 release (0x54) things were + * simple: AUX IDENTITY.ARCVER was sufficient to identify arc family + * and release: 0x50 to 0x53 was HS38, 0x54 was HS48 (dual issue) + */ + + if (cpu->core.family < 0x54) { /* includes arc700 */ + + for (tbl = &arc_legacy_rel[0]; tbl->id != 0; tbl++) { + if (cpu->core.family == tbl->id) { + cpu->release = tbl->str; + break; + } + } + + if (is_isa_arcompact()) + cpu->name = "ARC700"; + else if (tbl->str) + cpu->name = "HS38"; + else + cpu->name = cpu->release = "Unknown"; + + return; + } + + /* + * However the subsequent HS release (same 0x54) allow HS38 or HS48 + * configurations and encode this info in a different BCR. + * The BCR was introduced in 0x54 so can't be read unconditionally. + */ + + READ_BCR(ARC_REG_MICRO_ARCH_BCR, uarch); + + if (uarch.prod == 4) { + cpu->name = "HS48"; + cpu->extn.dual = 1; + + } else { + cpu->name = "HS38"; + } + + for (tbl = &arc_cpu_rel[0]; tbl->id != 0xFF; tbl++) { + if (uarch.maj == tbl->id) { + cpu->release = tbl->str; + break; + } + } +} + static void read_arc_build_cfg_regs(void) { struct bcr_timer timer; struct bcr_generic bcr; struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()]; - const struct id_to_str *tbl; struct bcr_isa_arcv2 isa; struct bcr_actionpoint ap; FIX_PTR(cpu); READ_BCR(AUX_IDENTITY, cpu->core); - - for (tbl = &arc_cpu_rel[0]; tbl->id != 0; tbl++) { - if (cpu->core.family == tbl->id) { - cpu->details = tbl->str; - break; - } - } - - for (tbl = &arc_cpu_nm[0]; tbl->id != 0; tbl++) { - if ((cpu->core.family & 0xF4) == tbl->id) - break; - } - cpu->name = tbl->str; + decode_arc_core(cpu); READ_BCR(ARC_REG_TIMERS_BCR, timer); cpu->extn.timer0 = timer.t0; @@ -151,16 +188,6 @@ static void read_arc_build_cfg_regs(void) READ_BCR(ARC_REG_MUL_BCR, cpu->extn_mpy); - cpu->extn.norm = read_aux_reg(ARC_REG_NORM_BCR) > 1 ? 1 : 0; /* 2,3 */ - cpu->extn.barrel = read_aux_reg(ARC_REG_BARREL_BCR) > 1 ? 1 : 0; /* 2,3 */ - cpu->extn.swap = read_aux_reg(ARC_REG_SWAP_BCR) ? 1 : 0; /* 1,3 */ - cpu->extn.crc = read_aux_reg(ARC_REG_CRC_BCR) ? 1 : 0; - cpu->extn.minmax = read_aux_reg(ARC_REG_MIXMAX_BCR) > 1 ? 1 : 0; /* 2 */ - cpu->extn.swape = (cpu->core.family >= 0x34) ? 1 : - IS_ENABLED(CONFIG_ARC_HAS_SWAPE); - - READ_BCR(ARC_REG_XY_MEM_BCR, cpu->extn_xymem); - /* Read CCM BCRs for boot reporting even if not enabled in Kconfig */ read_decode_ccm_bcr(cpu); @@ -198,30 +225,12 @@ static void read_arc_build_cfg_regs(void) cpu->bpu.num_pred = 2048 << bpu.pte; cpu->bpu.ret_stk = 4 << bpu.rse; - if (cpu->core.family >= 0x54) { - - struct bcr_uarch_build_arcv2 uarch; - - /* - * The first 0x54 core (uarch maj:min 0:1 or 0:2) was - * dual issue only (HS4x). But next uarch rev (1:0) - * allows it be configured for single issue (HS3x) - * Ensure we fiddle with dual issue only on HS4x - */ - READ_BCR(ARC_REG_MICRO_ARCH_BCR, uarch); - - if (uarch.prod == 4) { - unsigned int exec_ctrl; - - /* dual issue hardware always present */ - cpu->extn.dual = 1; - - READ_BCR(AUX_EXEC_CTRL, exec_ctrl); + /* if dual issue hardware, is it enabled ? */ + if (cpu->extn.dual) { + unsigned int exec_ctrl; - /* dual issue hardware enabled ? */ - cpu->extn.dual_enb = !(exec_ctrl & 1); - - } + READ_BCR(AUX_EXEC_CTRL, exec_ctrl); + cpu->extn.dual_enb = !(exec_ctrl & 1); } } @@ -263,7 +272,8 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) { struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id]; struct bcr_identity *core = &cpu->core; - int i, n = 0, ua = 0; + char mpy_opt[16]; + int n = 0; FIX_PTR(cpu); @@ -272,7 +282,7 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) core->family, core->cpu_id, core->chip_id); n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n", - cpu_id, cpu->name, cpu->details, + cpu_id, cpu->name, cpu->release, is_isa_arcompact() ? "ARCompact" : "ARCv2", IS_AVAIL1(cpu->isa.be, "[Big-Endian]"), IS_AVAIL3(cpu->extn.dual, cpu->extn.dual_enb, " Dual-Issue ")); @@ -283,61 +293,50 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) IS_AVAIL2(cpu->extn.rtc, "RTC [UP 64-bit] ", CONFIG_ARC_TIMERS_64BIT), IS_AVAIL2(cpu->extn.gfrc, "GFRC [SMP 64-bit] ", CONFIG_ARC_TIMERS_64BIT)); -#ifdef __ARC_UNALIGNED__ - ua = 1; -#endif - n += i = scnprintf(buf + n, len - n, "%s%s%s%s%s%s", - IS_AVAIL2(cpu->isa.atomic, "atomic ", CONFIG_ARC_HAS_LLSC), - IS_AVAIL2(cpu->isa.ldd, "ll64 ", CONFIG_ARC_HAS_LL64), - IS_AVAIL1(cpu->isa.unalign, "unalign "), IS_USED_RUN(ua)); - - if (i) - n += scnprintf(buf + n, len - n, "\n\t\t: "); - if (cpu->extn_mpy.ver) { - if (cpu->extn_mpy.ver <= 0x2) { /* ARCompact */ - n += scnprintf(buf + n, len - n, "mpy "); + if (is_isa_arcompact()) { + scnprintf(mpy_opt, 16, "mpy"); } else { + int opt = 2; /* stock MPY/MPYH */ if (cpu->extn_mpy.dsp) /* OPT 7-9 */ opt = cpu->extn_mpy.dsp + 6; - n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt); + scnprintf(mpy_opt, 16, "mpy[opt %d] ", opt); } } n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n", - IS_AVAIL1(cpu->isa.div_rem, "div_rem "), - IS_AVAIL1(cpu->extn.norm, "norm "), - IS_AVAIL1(cpu->extn.barrel, "barrel-shift "), - IS_AVAIL1(cpu->extn.swap, "swap "), - IS_AVAIL1(cpu->extn.minmax, "minmax "), - IS_AVAIL1(cpu->extn.crc, "crc "), - IS_AVAIL2(cpu->extn.swape, "swape", CONFIG_ARC_HAS_SWAPE)); - - if (cpu->bpu.ver) + IS_AVAIL2(cpu->isa.atomic, "atomic ", CONFIG_ARC_HAS_LLSC), + IS_AVAIL2(cpu->isa.ldd, "ll64 ", CONFIG_ARC_HAS_LL64), + IS_AVAIL2(cpu->isa.unalign, "unalign ", CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS), + IS_AVAIL1(cpu->extn_mpy.ver, mpy_opt), + IS_AVAIL1(cpu->isa.div_rem, "div_rem ")); + + if (cpu->bpu.ver) { n += scnprintf(buf + n, len - n, "BPU\t\t: %s%s match, cache:%d, Predict Table:%d Return stk: %d", IS_AVAIL1(cpu->bpu.full, "full"), IS_AVAIL1(!cpu->bpu.full, "partial"), cpu->bpu.num_cache, cpu->bpu.num_pred, cpu->bpu.ret_stk); - if (is_isa_arcv2()) { - struct bcr_lpb lpb; + if (is_isa_arcv2()) { + struct bcr_lpb lpb; - READ_BCR(ARC_REG_LPB_BUILD, lpb); - if (lpb.ver) { - unsigned int ctl; - ctl = read_aux_reg(ARC_REG_LPB_CTRL); + READ_BCR(ARC_REG_LPB_BUILD, lpb); + if (lpb.ver) { + unsigned int ctl; + ctl = read_aux_reg(ARC_REG_LPB_CTRL); - n += scnprintf(buf + n, len - n, " Loop Buffer:%d %s", - lpb.entries, - IS_DISABLED_RUN(!ctl)); + n += scnprintf(buf + n, len - n, " Loop Buffer:%d %s", + lpb.entries, + IS_DISABLED_RUN(!ctl)); + } } + n += scnprintf(buf + n, len - n, "\n"); } - n += scnprintf(buf + n, len - n, "\n"); return buf; } @@ -390,11 +389,6 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len) } } - n += scnprintf(buf + n, len - n, "OS ABI [v%d]\t: %s\n", - EF_ARC_OSABI_CURRENT >> 8, - EF_ARC_OSABI_CURRENT == EF_ARC_OSABI_V3 ? - "no-legacy-syscalls" : "64-bit data any register aligned"); - return buf; } @@ -497,6 +491,8 @@ static inline bool uboot_arg_invalid(unsigned long addr) #define UBOOT_TAG_NONE 0 #define UBOOT_TAG_CMDLINE 1 #define UBOOT_TAG_DTB 2 +/* We always pass 0 as magic from U-boot */ +#define UBOOT_MAGIC_VALUE 0 void __init handle_uboot_args(void) { @@ -511,6 +507,11 @@ void __init handle_uboot_args(void) goto ignore_uboot_args; } + if (uboot_magic != UBOOT_MAGIC_VALUE) { + pr_warn(IGNORE_ARGS "non zero uboot magic\n"); + goto ignore_uboot_args; + } + if (uboot_tag != UBOOT_TAG_NONE && uboot_arg_invalid((unsigned long)uboot_arg)) { pr_warn(IGNORE_ARGS "invalid uboot arg: '%px'\n", uboot_arg); diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index 215f515442e0..b0aa8c028331 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -145,7 +145,8 @@ static void show_ecr_verbose(struct pt_regs *regs) } else if (vec == ECR_V_PROTV) { if (cause_code == ECR_C_PROTV_INST_FETCH) pr_cont("Execute from Non-exec Page\n"); - else if (cause_code == ECR_C_PROTV_MISALIG_DATA) + else if (cause_code == ECR_C_PROTV_MISALIG_DATA && + IS_ENABLED(CONFIG_ISA_ARCOMPACT)) pr_cont("Misaligned r/w from 0x%08lx\n", address); else pr_cont("%s access not allowed on page\n", @@ -161,6 +162,8 @@ static void show_ecr_verbose(struct pt_regs *regs) pr_cont("Bus Error from Data Mem\n"); else pr_cont("Bus Error, check PRM\n"); + } else if (vec == ECR_V_MISALIGN) { + pr_cont("Misaligned r/w from 0x%08lx\n", address); #endif } else if (vec == ECR_V_TRAP) { if (regs->ecr_param == 5) diff --git a/arch/arc/lib/Makefile b/arch/arc/lib/Makefile index b1656d156097..f7537b466b23 100644 --- a/arch/arc/lib/Makefile +++ b/arch/arc/lib/Makefile @@ -8,4 +8,10 @@ lib-y := strchr-700.o strcpy-700.o strlen.o memcmp.o lib-$(CONFIG_ISA_ARCOMPACT) += memcpy-700.o memset.o strcmp.o -lib-$(CONFIG_ISA_ARCV2) += memcpy-archs.o memset-archs.o strcmp-archs.o +lib-$(CONFIG_ISA_ARCV2) += memset-archs.o strcmp-archs.o + +ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS +lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs-unaligned.o +else +lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs.o +endif diff --git a/arch/arc/lib/memcpy-archs-unaligned.S b/arch/arc/lib/memcpy-archs-unaligned.S new file mode 100644 index 000000000000..28993a73fdde --- /dev/null +++ b/arch/arc/lib/memcpy-archs-unaligned.S @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * ARCv2 memcpy implementation optimized for unaligned memory access using. + * + * Copyright (C) 2019 Synopsys + * Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> + */ + +#include <linux/linkage.h> + +#ifdef CONFIG_ARC_HAS_LL64 +# define LOADX(DST,RX) ldd.ab DST, [RX, 8] +# define STOREX(SRC,RX) std.ab SRC, [RX, 8] +# define ZOLSHFT 5 +# define ZOLAND 0x1F +#else +# define LOADX(DST,RX) ld.ab DST, [RX, 4] +# define STOREX(SRC,RX) st.ab SRC, [RX, 4] +# define ZOLSHFT 4 +# define ZOLAND 0xF +#endif + +ENTRY_CFI(memcpy) + mov r3, r0 ; don;t clobber ret val + + lsr.f lp_count, r2, ZOLSHFT + lpnz @.Lcopy32_64bytes + ;; LOOP START + LOADX (r6, r1) + LOADX (r8, r1) + LOADX (r10, r1) + LOADX (r4, r1) + STOREX (r6, r3) + STOREX (r8, r3) + STOREX (r10, r3) + STOREX (r4, r3) +.Lcopy32_64bytes: + + and.f lp_count, r2, ZOLAND ;Last remaining 31 bytes + lpnz @.Lcopyremainingbytes + ;; LOOP START + ldb.ab r5, [r1, 1] + stb.ab r5, [r3, 1] +.Lcopyremainingbytes: + + j [blink] +END_CFI(memcpy) diff --git a/arch/arc/lib/memset-archs.S b/arch/arc/lib/memset-archs.S index f230bb7092fd..b3373f5c88e0 100644 --- a/arch/arc/lib/memset-archs.S +++ b/arch/arc/lib/memset-archs.S @@ -30,10 +30,10 @@ #else -.macro PREALLOC_INSTR +.macro PREALLOC_INSTR reg, off .endm -.macro PREFETCHW_INSTR +.macro PREFETCHW_INSTR reg, off .endm #endif diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c index 4135abec3fb0..63e6e6504699 100644 --- a/arch/arc/mm/cache.c +++ b/arch/arc/mm/cache.c @@ -113,10 +113,24 @@ static void read_decode_cache_bcr_arcv2(int cpu) } READ_BCR(ARC_REG_CLUSTER_BCR, cbcr); - if (cbcr.c) + if (cbcr.c) { ioc_exists = 1; - else + + /* + * As for today we don't support both IOC and ZONE_HIGHMEM enabled + * simultaneously. This happens because as of today IOC aperture covers + * only ZONE_NORMAL (low mem) and any dma transactions outside this + * region won't be HW coherent. + * If we want to use both IOC and ZONE_HIGHMEM we can use + * bounce_buffer to handle dma transactions to HIGHMEM. + * Also it is possible to modify dma_direct cache ops or increase IOC + * aperture size if we are planning to use HIGHMEM without PAE. + */ + if (IS_ENABLED(CONFIG_HIGHMEM) || is_pae40_enabled()) + ioc_enable = 0; + } else { ioc_enable = 0; + } /* HS 2.0 didn't have AUX_VOL */ if (cpuinfo_arc700[cpu].core.family > 0x51) { @@ -1158,19 +1172,6 @@ noinline void __init arc_ioc_setup(void) if (!ioc_enable) return; - /* - * As for today we don't support both IOC and ZONE_HIGHMEM enabled - * simultaneously. This happens because as of today IOC aperture covers - * only ZONE_NORMAL (low mem) and any dma transactions outside this - * region won't be HW coherent. - * If we want to use both IOC and ZONE_HIGHMEM we can use - * bounce_buffer to handle dma transactions to HIGHMEM. - * Also it is possible to modify dma_direct cache ops or increase IOC - * aperture size if we are planning to use HIGHMEM without PAE. - */ - if (IS_ENABLED(CONFIG_HIGHMEM)) - panic("IOC and HIGHMEM can't be used simultaneously"); - /* Flush + invalidate + disable L1 dcache */ __dc_disable(); diff --git a/arch/arc/plat-eznps/Kconfig b/arch/arc/plat-eznps/Kconfig index 8eff057efcae..2eaecfb063a7 100644 --- a/arch/arc/plat-eznps/Kconfig +++ b/arch/arc/plat-eznps/Kconfig @@ -26,8 +26,8 @@ config EZNPS_MTM_EXT help Here we add new hierarchy for CPUs topology. We got: - Core - Thread + Core + Thread At the new thread level each CPU represent one HW thread. At highest hierarchy each core contain 16 threads, any of them seem like CPU from Linux point of view. @@ -35,10 +35,10 @@ config EZNPS_MTM_EXT core and HW scheduler round robin between them. config EZNPS_MEM_ERROR_ALIGN - bool "ARC-EZchip Memory error as an exception" - depends on EZNPS_MTM_EXT - default n - help + bool "ARC-EZchip Memory error as an exception" + depends on EZNPS_MTM_EXT + default n + help On the real chip of the NPS, user memory errors are handled as a machine check exception, which is fatal, whereas on simulator platform for NPS, is handled as a Level 2 interrupt diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 054ead960f98..dc9855c4a3b4 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -73,7 +73,7 @@ config ARM select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU select HAVE_EXIT_THREAD select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL - select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL + select HAVE_FUNCTION_GRAPH_TRACER if !THUMB2_KERNEL && !CC_IS_CLANG select HAVE_FUNCTION_TRACER if !XIP_KERNEL select HAVE_GCC_PLUGINS select HAVE_HW_BREAKPOINT if PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7) @@ -178,10 +178,6 @@ config TRACE_IRQFLAGS_SUPPORT bool default !CPU_V7M -config RWSEM_XCHGADD_ALGORITHM - bool - default y - config ARCH_HAS_ILOG2_U32 bool @@ -596,6 +592,7 @@ config ARCH_DAVINCI select HAVE_IDE select PM_GENERIC_DOMAINS if PM select PM_GENERIC_DOMAINS_OF if PM && OF + select REGMAP_MMIO select RESET_CONTROLLER select SPARSE_IRQ select USE_OF diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 6d6e0330930b..e388af4594a6 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -47,8 +47,8 @@ config DEBUG_WX choice prompt "Choose kernel unwinder" - default UNWINDER_ARM if AEABI && !FUNCTION_GRAPH_TRACER - default UNWINDER_FRAME_POINTER if !AEABI || FUNCTION_GRAPH_TRACER + default UNWINDER_ARM if AEABI + default UNWINDER_FRAME_POINTER if !AEABI help This determines which method will be used for unwinding kernel stack traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack, @@ -65,7 +65,7 @@ config UNWINDER_FRAME_POINTER config UNWINDER_ARM bool "ARM EABI stack unwinder" - depends on AEABI + depends on AEABI && !FUNCTION_GRAPH_TRACER select ARM_UNWIND help This option enables stack unwinding support in the kernel diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 6c7ccb428c07..7135820f76d4 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -1438,7 +1438,21 @@ ENTRY(efi_stub_entry) @ Preserve return value of efi_entry() in r4 mov r4, r0 - bl cache_clean_flush + + @ our cache maintenance code relies on CP15 barrier instructions + @ but since we arrived here with the MMU and caches configured + @ by UEFI, we must check that the CP15BEN bit is set in SCTLR. + @ Note that this bit is RAO/WI on v6 and earlier, so the ISB in + @ the enable path will be executed on v7+ only. + mrc p15, 0, r1, c1, c0, 0 @ read SCTLR + tst r1, #(1 << 5) @ CP15BEN bit set? + bne 0f + orr r1, r1, #(1 << 5) @ CP15 barrier instructions + mcr p15, 0, r1, c1, c0, 0 @ write SCTLR + ARM( .inst 0xf57ff06f @ v7+ isb ) + THUMB( isb ) + +0: bl cache_clean_flush bl cache_off @ Set parameters for booting zImage according to boot protocol diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index dce5be5df97b..edcff79879e7 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -57,6 +57,24 @@ enable-active-high; }; + /* TPS79501 */ + v1_8d_reg: fixedregulator-v1_8d { + compatible = "regulator-fixed"; + regulator-name = "v1_8d"; + vin-supply = <&vbat>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + /* TPS79501 */ + v3_3d_reg: fixedregulator-v3_3d { + compatible = "regulator-fixed"; + regulator-name = "v3_3d"; + vin-supply = <&vbat>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + matrix_keypad: matrix_keypad0 { compatible = "gpio-matrix-keypad"; debounce-delay-ms = <5>; @@ -499,10 +517,10 @@ status = "okay"; /* Regulators */ - AVDD-supply = <&vaux2_reg>; - IOVDD-supply = <&vaux2_reg>; - DRVDD-supply = <&vaux2_reg>; - DVDD-supply = <&vbat>; + AVDD-supply = <&v3_3d_reg>; + IOVDD-supply = <&v3_3d_reg>; + DRVDD-supply = <&v3_3d_reg>; + DVDD-supply = <&v1_8d_reg>; }; }; diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts index b128998097ce..2c2d8b5b8cf5 100644 --- a/arch/arm/boot/dts/am335x-evmsk.dts +++ b/arch/arm/boot/dts/am335x-evmsk.dts @@ -73,6 +73,24 @@ enable-active-high; }; + /* TPS79518 */ + v1_8d_reg: fixedregulator-v1_8d { + compatible = "regulator-fixed"; + regulator-name = "v1_8d"; + vin-supply = <&vbat>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + /* TPS78633 */ + v3_3d_reg: fixedregulator-v3_3d { + compatible = "regulator-fixed"; + regulator-name = "v3_3d"; + vin-supply = <&vbat>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + leds { pinctrl-names = "default"; pinctrl-0 = <&user_leds_s0>; @@ -501,10 +519,10 @@ status = "okay"; /* Regulators */ - AVDD-supply = <&vaux2_reg>; - IOVDD-supply = <&vaux2_reg>; - DRVDD-supply = <&vaux2_reg>; - DVDD-supply = <&vbat>; + AVDD-supply = <&v3_3d_reg>; + IOVDD-supply = <&v3_3d_reg>; + DRVDD-supply = <&v3_3d_reg>; + DVDD-supply = <&v1_8d_reg>; }; }; diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi index f459ec316a22..ca6d9f02a800 100644 --- a/arch/arm/boot/dts/am33xx-l4.dtsi +++ b/arch/arm/boot/dts/am33xx-l4.dtsi @@ -1762,7 +1762,7 @@ reg = <0xcc000 0x4>; reg-names = "rev"; /* Domains (P, C): per_pwrdm, l4ls_clkdm */ - clocks = <&l4ls_clkctrl AM3_D_CAN0_CLKCTRL 0>; + clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>; clock-names = "fck"; #address-cells = <1>; #size-cells = <1>; @@ -1785,7 +1785,7 @@ reg = <0xd0000 0x4>; reg-names = "rev"; /* Domains (P, C): per_pwrdm, l4ls_clkdm */ - clocks = <&l4ls_clkctrl AM3_D_CAN1_CLKCTRL 0>; + clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>; clock-names = "fck"; #address-cells = <1>; #size-cells = <1>; diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts index 5641d162dfdb..28e7513ce617 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts @@ -93,7 +93,7 @@ }; &hdmi { - hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; + hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>; }; &pwm { diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi index b715ab0fa1ff..e8d800fec637 100644 --- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi +++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi @@ -114,9 +114,9 @@ reg = <2>; }; - switch@0 { + switch@10 { compatible = "qca,qca8334"; - reg = <0>; + reg = <10>; switch_ports: ports { #address-cells = <1>; @@ -125,7 +125,7 @@ ethphy0: port@0 { reg = <0>; label = "cpu"; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; ethernet = <&fec>; fixed-link { diff --git a/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi b/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi index 1d1b4bd0670f..a4217f564a53 100644 --- a/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi +++ b/arch/arm/boot/dts/imx6qdl-icore-rqs.dtsi @@ -264,7 +264,7 @@ pinctrl-2 = <&pinctrl_usdhc3_200mhz>; vmcc-supply = <®_sd3_vmmc>; cd-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>; - bus-witdh = <4>; + bus-width = <4>; no-1-8-v; status = "okay"; }; @@ -275,7 +275,7 @@ pinctrl-1 = <&pinctrl_usdhc4_100mhz>; pinctrl-2 = <&pinctrl_usdhc4_200mhz>; vmcc-supply = <®_sd4_vmmc>; - bus-witdh = <8>; + bus-width = <8>; no-1-8-v; non-removable; status = "okay"; diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi index 433bf09a1954..027df06c5dc7 100644 --- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi +++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi @@ -91,6 +91,7 @@ pinctrl-0 = <&pinctrl_enet>; phy-handle = <ðphy>; phy-mode = "rgmii"; + phy-reset-duration = <10>; /* in msecs */ phy-reset-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>; phy-supply = <&vdd_eth_io_reg>; status = "disabled"; diff --git a/arch/arm/boot/dts/imx6ull-pinfunc-snvs.h b/arch/arm/boot/dts/imx6ull-pinfunc-snvs.h index f6fb6783c193..54cfe72295aa 100644 --- a/arch/arm/boot/dts/imx6ull-pinfunc-snvs.h +++ b/arch/arm/boot/dts/imx6ull-pinfunc-snvs.h @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0 +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2016 Freescale Semiconductor, Inc. * Copyright (C) 2017 NXP diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi index aa107ee41b8b..ef653c3209bc 100644 --- a/arch/arm/boot/dts/rk3288-tinker.dtsi +++ b/arch/arm/boot/dts/rk3288-tinker.dtsi @@ -254,6 +254,7 @@ }; vccio_sd: LDO_REG5 { + regulator-boot-on; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; regulator-name = "vccio_sd"; @@ -430,7 +431,7 @@ bus-width = <4>; cap-mmc-highspeed; cap-sd-highspeed; - card-detect-delay = <200>; + broken-cd; disable-wp; /* wp not hooked up */ pinctrl-names = "default"; pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>; diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi index 0bc2409f6903..192dbc089ade 100644 --- a/arch/arm/boot/dts/rk3288-veyron.dtsi +++ b/arch/arm/boot/dts/rk3288-veyron.dtsi @@ -25,8 +25,6 @@ gpio_keys: gpio-keys { compatible = "gpio-keys"; - #address-cells = <1>; - #size-cells = <0>; pinctrl-names = "default"; pinctrl-0 = <&pwr_key_l>; diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi index ca7d52daa8fb..a024d1e7e74c 100644 --- a/arch/arm/boot/dts/rk3288.dtsi +++ b/arch/arm/boot/dts/rk3288.dtsi @@ -70,7 +70,7 @@ compatible = "arm,cortex-a12"; reg = <0x501>; resets = <&cru SRST_CORE1>; - operating-points = <&cpu_opp_table>; + operating-points-v2 = <&cpu_opp_table>; #cooling-cells = <2>; /* min followed by max */ clock-latency = <40000>; clocks = <&cru ARMCLK>; @@ -80,7 +80,7 @@ compatible = "arm,cortex-a12"; reg = <0x502>; resets = <&cru SRST_CORE2>; - operating-points = <&cpu_opp_table>; + operating-points-v2 = <&cpu_opp_table>; #cooling-cells = <2>; /* min followed by max */ clock-latency = <40000>; clocks = <&cru ARMCLK>; @@ -90,7 +90,7 @@ compatible = "arm,cortex-a12"; reg = <0x503>; resets = <&cru SRST_CORE3>; - operating-points = <&cpu_opp_table>; + operating-points-v2 = <&cpu_opp_table>; #cooling-cells = <2>; /* min followed by max */ clock-latency = <40000>; clocks = <&cru ARMCLK>; @@ -1119,8 +1119,6 @@ clock-names = "ref", "pclk"; power-domains = <&power RK3288_PD_VIO>; rockchip,grf = <&grf>; - #address-cells = <1>; - #size-cells = <0>; status = "disabled"; ports { @@ -1282,27 +1280,27 @@ gpu_opp_table: gpu-opp-table { compatible = "operating-points-v2"; - opp@100000000 { + opp-100000000 { opp-hz = /bits/ 64 <100000000>; opp-microvolt = <950000>; }; - opp@200000000 { + opp-200000000 { opp-hz = /bits/ 64 <200000000>; opp-microvolt = <950000>; }; - opp@300000000 { + opp-300000000 { opp-hz = /bits/ 64 <300000000>; opp-microvolt = <1000000>; }; - opp@400000000 { + opp-400000000 { opp-hz = /bits/ 64 <400000000>; opp-microvolt = <1100000>; }; - opp@500000000 { + opp-500000000 { opp-hz = /bits/ 64 <500000000>; opp-microvolt = <1200000>; }; - opp@600000000 { + opp-600000000 { opp-hz = /bits/ 64 <600000000>; opp-microvolt = <1250000>; }; diff --git a/arch/arm/boot/dts/sama5d2-pinfunc.h b/arch/arm/boot/dts/sama5d2-pinfunc.h index 1c01a6f843d8..28a2e45752fe 100644 --- a/arch/arm/boot/dts/sama5d2-pinfunc.h +++ b/arch/arm/boot/dts/sama5d2-pinfunc.h @@ -518,7 +518,7 @@ #define PIN_PC9__GPIO PINMUX_PIN(PIN_PC9, 0, 0) #define PIN_PC9__FIQ PINMUX_PIN(PIN_PC9, 1, 3) #define PIN_PC9__GTSUCOMP PINMUX_PIN(PIN_PC9, 2, 1) -#define PIN_PC9__ISC_D0 PINMUX_PIN(PIN_PC9, 2, 1) +#define PIN_PC9__ISC_D0 PINMUX_PIN(PIN_PC9, 3, 1) #define PIN_PC9__TIOA4 PINMUX_PIN(PIN_PC9, 4, 2) #define PIN_PC10 74 #define PIN_PC10__GPIO PINMUX_PIN(PIN_PC10, 0, 0) diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig index 8661dd9b064a..b37f8e675e40 100644 --- a/arch/arm/configs/imx_v4_v5_defconfig +++ b/arch/arm/configs/imx_v4_v5_defconfig @@ -170,6 +170,9 @@ CONFIG_IMX_SDMA=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_IIO=y CONFIG_FSL_MX25_ADC=y +CONFIG_PWM=y +CONFIG_PWM_IMX1=y +CONFIG_PWM_IMX27=y CONFIG_EXT4_FS=y # CONFIG_DNOTIFY is not set CONFIG_VFAT_FS=y diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 5586a5074a96..50fb01d70b10 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -398,7 +398,7 @@ CONFIG_MAG3110=y CONFIG_MPL3115=y CONFIG_PWM=y CONFIG_PWM_FSL_FTM=y -CONFIG_PWM_IMX=y +CONFIG_PWM_IMX27=y CONFIG_NVMEM_IMX_OCOTP=y CONFIG_NVMEM_VF610_OCOTP=y CONFIG_TEE=y diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild index a8a4eb7f6dae..8fb51b7bf1d5 100644 --- a/arch/arm/include/asm/Kbuild +++ b/arch/arm/include/asm/Kbuild @@ -12,7 +12,6 @@ generic-y += mm-arch-hooks.h generic-y += msi.h generic-y += parport.h generic-y += preempt.h -generic-y += rwsem.h generic-y += seccomp.h generic-y += segment.h generic-y += serial.h diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index 2de96a180166..31de4ab93005 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -381,6 +381,17 @@ static inline int kvm_read_guest_lock(struct kvm *kvm, return ret; } +static inline int kvm_write_guest_lock(struct kvm *kvm, gpa_t gpa, + const void *data, unsigned long len) +{ + int srcu_idx = srcu_read_lock(&kvm->srcu); + int ret = kvm_write_guest(kvm, gpa, data, len); + + srcu_read_unlock(&kvm->srcu, srcu_idx); + + return ret; +} + static inline void *kvm_get_hyp_vector(void) { switch(read_cpuid_part()) { diff --git a/arch/arm/include/asm/stage2_pgtable.h b/arch/arm/include/asm/stage2_pgtable.h index de2089501b8b..9e11dce55e06 100644 --- a/arch/arm/include/asm/stage2_pgtable.h +++ b/arch/arm/include/asm/stage2_pgtable.h @@ -75,6 +75,8 @@ static inline bool kvm_stage2_has_pud(struct kvm *kvm) #define S2_PMD_MASK PMD_MASK #define S2_PMD_SIZE PMD_SIZE +#define S2_PUD_MASK PUD_MASK +#define S2_PUD_SIZE PUD_SIZE static inline bool kvm_stage2_has_pmd(struct kvm *kvm) { diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h index 06dea6bce293..080ce70cab12 100644 --- a/arch/arm/include/asm/syscall.h +++ b/arch/arm/include/asm/syscall.h @@ -55,53 +55,22 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; - unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; - pr_warn("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - memset(args_bad, 0, n_bad * sizeof(args[0])); - n = SYSCALL_MAX_ARGS - i; - } - - if (i == 0) { - args[0] = regs->ARM_ORIG_r0; - args++; - i++; - n--; - } - - memcpy(args, ®s->ARM_r0 + i, n * sizeof(args[0])); + args[0] = regs->ARM_ORIG_r0; + args++; + + memcpy(args, ®s->ARM_r0 + 1, 5 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - pr_warn("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - n = SYSCALL_MAX_ARGS - i; - } - - if (i == 0) { - regs->ARM_ORIG_r0 = args[0]; - args++; - i++; - n--; - } - - memcpy(®s->ARM_r0 + i, args, n * sizeof(args[0])); + regs->ARM_ORIG_r0 = args[0]; + args++; + + memcpy(®s->ARM_r0 + 1, args, 5 * sizeof(args[0])); } static inline int syscall_get_arch(void) diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index f854148c8d7c..bc6d04a09899 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -33,271 +33,42 @@ #include <asm/pgalloc.h> #include <asm/tlbflush.h> -#define MMU_GATHER_BUNDLE 8 - -#ifdef CONFIG_HAVE_RCU_TABLE_FREE static inline void __tlb_remove_table(void *_table) { free_page_and_swap_cache((struct page *)_table); } -struct mmu_table_batch { - struct rcu_head rcu; - unsigned int nr; - void *tables[0]; -}; - -#define MAX_TABLE_BATCH \ - ((PAGE_SIZE - sizeof(struct mmu_table_batch)) / sizeof(void *)) - -extern void tlb_table_flush(struct mmu_gather *tlb); -extern void tlb_remove_table(struct mmu_gather *tlb, void *table); - -#define tlb_remove_entry(tlb, entry) tlb_remove_table(tlb, entry) -#else -#define tlb_remove_entry(tlb, entry) tlb_remove_page(tlb, entry) -#endif /* CONFIG_HAVE_RCU_TABLE_FREE */ - -/* - * TLB handling. This allows us to remove pages from the page - * tables, and efficiently handle the TLB issues. - */ -struct mmu_gather { - struct mm_struct *mm; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - struct mmu_table_batch *batch; - unsigned int need_flush; -#endif - unsigned int fullmm; - struct vm_area_struct *vma; - unsigned long start, end; - unsigned long range_start; - unsigned long range_end; - unsigned int nr; - unsigned int max; - struct page **pages; - struct page *local[MMU_GATHER_BUNDLE]; -}; - -DECLARE_PER_CPU(struct mmu_gather, mmu_gathers); - -/* - * This is unnecessarily complex. There's three ways the TLB shootdown - * code is used: - * 1. Unmapping a range of vmas. See zap_page_range(), unmap_region(). - * tlb->fullmm = 0, and tlb_start_vma/tlb_end_vma will be called. - * tlb->vma will be non-NULL. - * 2. Unmapping all vmas. See exit_mmap(). - * tlb->fullmm = 1, and tlb_start_vma/tlb_end_vma will be called. - * tlb->vma will be non-NULL. Additionally, page tables will be freed. - * 3. Unmapping argument pages. See shift_arg_pages(). - * tlb->fullmm = 0, but tlb_start_vma/tlb_end_vma will not be called. - * tlb->vma will be NULL. - */ -static inline void tlb_flush(struct mmu_gather *tlb) -{ - if (tlb->fullmm || !tlb->vma) - flush_tlb_mm(tlb->mm); - else if (tlb->range_end > 0) { - flush_tlb_range(tlb->vma, tlb->range_start, tlb->range_end); - tlb->range_start = TASK_SIZE; - tlb->range_end = 0; - } -} - -static inline void tlb_add_flush(struct mmu_gather *tlb, unsigned long addr) -{ - if (!tlb->fullmm) { - if (addr < tlb->range_start) - tlb->range_start = addr; - if (addr + PAGE_SIZE > tlb->range_end) - tlb->range_end = addr + PAGE_SIZE; - } -} - -static inline void __tlb_alloc_page(struct mmu_gather *tlb) -{ - unsigned long addr = __get_free_pages(GFP_NOWAIT | __GFP_NOWARN, 0); - - if (addr) { - tlb->pages = (void *)addr; - tlb->max = PAGE_SIZE / sizeof(struct page *); - } -} - -static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) -{ - tlb_flush(tlb); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - tlb_table_flush(tlb); -#endif -} - -static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) -{ - free_pages_and_swap_cache(tlb->pages, tlb->nr); - tlb->nr = 0; - if (tlb->pages == tlb->local) - __tlb_alloc_page(tlb); -} - -static inline void tlb_flush_mmu(struct mmu_gather *tlb) -{ - tlb_flush_mmu_tlbonly(tlb); - tlb_flush_mmu_free(tlb); -} - -static inline void -arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, - unsigned long start, unsigned long end) -{ - tlb->mm = mm; - tlb->fullmm = !(start | (end+1)); - tlb->start = start; - tlb->end = end; - tlb->vma = NULL; - tlb->max = ARRAY_SIZE(tlb->local); - tlb->pages = tlb->local; - tlb->nr = 0; - __tlb_alloc_page(tlb); +#include <asm-generic/tlb.h> -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - tlb->batch = NULL; +#ifndef CONFIG_HAVE_RCU_TABLE_FREE +#define tlb_remove_table(tlb, entry) tlb_remove_page(tlb, entry) #endif -} - -static inline void -arch_tlb_finish_mmu(struct mmu_gather *tlb, - unsigned long start, unsigned long end, bool force) -{ - if (force) { - tlb->range_start = start; - tlb->range_end = end; - } - - tlb_flush_mmu(tlb); - - /* keep the page table cache within bounds */ - check_pgt_cache(); - - if (tlb->pages != tlb->local) - free_pages((unsigned long)tlb->pages, 0); -} - -/* - * Memorize the range for the TLB flush. - */ -static inline void -tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, unsigned long addr) -{ - tlb_add_flush(tlb, addr); -} - -#define tlb_remove_huge_tlb_entry(h, tlb, ptep, address) \ - tlb_remove_tlb_entry(tlb, ptep, address) -/* - * In the case of tlb vma handling, we can optimise these away in the - * case where we're doing a full MM flush. When we're doing a munmap, - * the vmas are adjusted to only cover the region to be torn down. - */ -static inline void -tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) -{ - if (!tlb->fullmm) { - flush_cache_range(vma, vma->vm_start, vma->vm_end); - tlb->vma = vma; - tlb->range_start = TASK_SIZE; - tlb->range_end = 0; - } -} static inline void -tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) -{ - if (!tlb->fullmm) - tlb_flush(tlb); -} - -static inline bool __tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - tlb->pages[tlb->nr++] = page; - VM_WARN_ON(tlb->nr > tlb->max); - if (tlb->nr == tlb->max) - return true; - return false; -} - -static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - if (__tlb_remove_page(tlb, page)) - tlb_flush_mmu(tlb); -} - -static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return __tlb_remove_page(tlb, page); -} - -static inline void tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return tlb_remove_page(tlb, page); -} - -static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, - unsigned long addr) +__pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr) { pgtable_page_dtor(pte); -#ifdef CONFIG_ARM_LPAE - tlb_add_flush(tlb, addr); -#else +#ifndef CONFIG_ARM_LPAE /* * With the classic ARM MMU, a pte page has two corresponding pmd * entries, each covering 1MB. */ - addr &= PMD_MASK; - tlb_add_flush(tlb, addr + SZ_1M - PAGE_SIZE); - tlb_add_flush(tlb, addr + SZ_1M); + addr = (addr & PMD_MASK) + SZ_1M; + __tlb_adjust_range(tlb, addr - PAGE_SIZE, 2 * PAGE_SIZE); #endif - tlb_remove_entry(tlb, pte); -} - -static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, - unsigned long addr) -{ -#ifdef CONFIG_ARM_LPAE - tlb_add_flush(tlb, addr); - tlb_remove_entry(tlb, virt_to_page(pmdp)); -#endif + tlb_remove_table(tlb, pte); } static inline void -tlb_remove_pmd_tlb_entry(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr) -{ - tlb_add_flush(tlb, addr); -} - -#define pte_free_tlb(tlb, ptep, addr) __pte_free_tlb(tlb, ptep, addr) -#define pmd_free_tlb(tlb, pmdp, addr) __pmd_free_tlb(tlb, pmdp, addr) -#define pud_free_tlb(tlb, pudp, addr) pud_free((tlb)->mm, pudp) - -#define tlb_migrate_finish(mm) do { } while (0) - -#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change -static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, - unsigned int page_size) +__pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr) { -} - -static inline void tlb_flush_remove_tables(struct mm_struct *mm) -{ -} +#ifdef CONFIG_ARM_LPAE + struct page *page = virt_to_page(pmdp); -static inline void tlb_flush_remove_tables_local(void *arg) -{ + tlb_remove_table(tlb, page); +#endif } #endif /* CONFIG_MMU */ diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild index 23b4464c0995..ce8573157774 100644 --- a/arch/arm/include/uapi/asm/Kbuild +++ b/arch/arm/include/uapi/asm/Kbuild @@ -3,3 +3,4 @@ generated-y += unistd-common.h generated-y += unistd-oabi.h generated-y += unistd-eabi.h +generic-y += kvm_para.h diff --git a/arch/arm/include/uapi/asm/kvm_para.h b/arch/arm/include/uapi/asm/kvm_para.h deleted file mode 100644 index baacc4996d18..000000000000 --- a/arch/arm/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/kvm_para.h> diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index c08d2d890f7b..b38bbd011b35 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -133,9 +133,9 @@ __secondary_data: */ .text __after_proc_init: -#ifdef CONFIG_ARM_MPU M_CLASS(movw r12, #:lower16:BASEADDR_V7M_SCB) M_CLASS(movt r12, #:upper16:BASEADDR_V7M_SCB) +#ifdef CONFIG_ARM_MPU M_CLASS(ldr r3, [r12, 0x50]) AR_CLASS(mrc p15, 0, r3, c0, c1, 4) @ Read ID_MMFR0 and r3, r3, #(MMFR0_PMSA) @ PMSA field diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 76bb8de6bf6b..be5edfdde558 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -549,8 +549,7 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs) int ret; /* - * Increment event counter and perform fixup for the pre-signal - * frame. + * Perform fixup for the pre-signal frame. */ rseq_signal_deliver(ksig, regs); diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c index a56e7c856ab5..86870f40f9a0 100644 --- a/arch/arm/kernel/stacktrace.c +++ b/arch/arm/kernel/stacktrace.c @@ -115,8 +115,6 @@ static noinline void __save_stack_trace(struct task_struct *tsk, * running on another CPU? For now, ignore it as we * can't guarantee we won't explode. */ - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; return; #else frame.fp = thread_saved_fp(tsk); @@ -134,8 +132,6 @@ static noinline void __save_stack_trace(struct task_struct *tsk, } walk_stackframe(&frame, save_trace, &data); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace) @@ -153,8 +149,6 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace) frame.pc = regs->ARM_pc; walk_stackframe(&frame, save_trace, &data); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 51e808adb00c..2a757dcaa1a5 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -591,13 +591,13 @@ static int __init at91_pm_backup_init(void) np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam"); if (!np) - goto securam_fail; + goto securam_fail_no_ref_dev; pdev = of_find_device_by_node(np); of_node_put(np); if (!pdev) { pr_warn("%s: failed to find securam device!\n", __func__); - goto securam_fail; + goto securam_fail_no_ref_dev; } sram_pool = gen_pool_get(&pdev->dev, NULL); @@ -620,6 +620,8 @@ static int __init at91_pm_backup_init(void) return 0; securam_fail: + put_device(&pdev->dev); +securam_fail_no_ref_dev: iounmap(pm_data.sfrbu); pm_data.sfrbu = NULL; return ret; diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c index 7d5a44a06648..f676592d8402 100644 --- a/arch/arm/mach-cns3xxx/core.c +++ b/arch/arm/mach-cns3xxx/core.c @@ -90,7 +90,7 @@ void __init cns3xxx_map_io(void) /* used by entry-macro.S */ void __init cns3xxx_init_irq(void) { - gic_init(0, 29, IOMEM(CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT), + gic_init(IOMEM(CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT), IOMEM(CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT)); } diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c index bfeb25aaf9a2..326e870d7123 100644 --- a/arch/arm/mach-imx/cpuidle-imx6q.c +++ b/arch/arm/mach-imx/cpuidle-imx6q.c @@ -16,30 +16,23 @@ #include "cpuidle.h" #include "hardware.h" -static atomic_t master = ATOMIC_INIT(0); -static DEFINE_SPINLOCK(master_lock); +static int num_idle_cpus = 0; +static DEFINE_SPINLOCK(cpuidle_lock); static int imx6q_enter_wait(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { - if (atomic_inc_return(&master) == num_online_cpus()) { - /* - * With this lock, we prevent other cpu to exit and enter - * this function again and become the master. - */ - if (!spin_trylock(&master_lock)) - goto idle; + spin_lock(&cpuidle_lock); + if (++num_idle_cpus == num_online_cpus()) imx6_set_lpm(WAIT_UNCLOCKED); - cpu_do_idle(); - imx6_set_lpm(WAIT_CLOCKED); - spin_unlock(&master_lock); - goto done; - } + spin_unlock(&cpuidle_lock); -idle: cpu_do_idle(); -done: - atomic_dec(&master); + + spin_lock(&cpuidle_lock); + if (num_idle_cpus-- == num_online_cpus()) + imx6_set_lpm(WAIT_CLOCKED); + spin_unlock(&cpuidle_lock); return index; } diff --git a/arch/arm/mach-imx/mach-imx51.c b/arch/arm/mach-imx/mach-imx51.c index c7169c2f94c4..08c7892866c2 100644 --- a/arch/arm/mach-imx/mach-imx51.c +++ b/arch/arm/mach-imx/mach-imx51.c @@ -59,6 +59,7 @@ static void __init imx51_m4if_setup(void) return; m4if_base = of_iomap(np, 0); + of_node_put(np); if (!m4if_base) { pr_err("Unable to map M4IF registers\n"); return; diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c index 53c316f7301e..fe4932fda01d 100644 --- a/arch/arm/mach-iop13xx/setup.c +++ b/arch/arm/mach-iop13xx/setup.c @@ -300,7 +300,7 @@ static struct resource iop13xx_adma_2_resources[] = { } }; -static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(64); +static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(32); static struct iop_adma_platform_data iop13xx_adma_0_data = { .hw_id = 0, .pool_size = PAGE_SIZE, @@ -324,7 +324,7 @@ static struct platform_device iop13xx_adma_0_channel = { .resource = iop13xx_adma_0_resources, .dev = { .dma_mask = &iop13xx_adma_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = (void *) &iop13xx_adma_0_data, }, }; @@ -336,7 +336,7 @@ static struct platform_device iop13xx_adma_1_channel = { .resource = iop13xx_adma_1_resources, .dev = { .dma_mask = &iop13xx_adma_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = (void *) &iop13xx_adma_1_data, }, }; @@ -348,7 +348,7 @@ static struct platform_device iop13xx_adma_2_channel = { .resource = iop13xx_adma_2_resources, .dev = { .dma_mask = &iop13xx_adma_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = (void *) &iop13xx_adma_2_data, }, }; diff --git a/arch/arm/mach-iop13xx/tpmi.c b/arch/arm/mach-iop13xx/tpmi.c index db511ec2b1df..116feb6b261e 100644 --- a/arch/arm/mach-iop13xx/tpmi.c +++ b/arch/arm/mach-iop13xx/tpmi.c @@ -152,7 +152,7 @@ static struct resource iop13xx_tpmi_3_resources[] = { } }; -u64 iop13xx_tpmi_mask = DMA_BIT_MASK(64); +u64 iop13xx_tpmi_mask = DMA_BIT_MASK(32); static struct platform_device iop13xx_tpmi_0_device = { .name = "iop-tpmi", .id = 0, @@ -160,7 +160,7 @@ static struct platform_device iop13xx_tpmi_0_device = { .resource = iop13xx_tpmi_0_resources, .dev = { .dma_mask = &iop13xx_tpmi_mask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; @@ -171,7 +171,7 @@ static struct platform_device iop13xx_tpmi_1_device = { .resource = iop13xx_tpmi_1_resources, .dev = { .dma_mask = &iop13xx_tpmi_mask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; @@ -182,7 +182,7 @@ static struct platform_device iop13xx_tpmi_2_device = { .resource = iop13xx_tpmi_2_resources, .dev = { .dma_mask = &iop13xx_tpmi_mask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; @@ -193,7 +193,7 @@ static struct platform_device iop13xx_tpmi_3_device = { .resource = iop13xx_tpmi_3_resources, .dev = { .dma_mask = &iop13xx_tpmi_mask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; diff --git a/arch/arm/mach-milbeaut/platsmp.c b/arch/arm/mach-milbeaut/platsmp.c index 591543c81399..3ea880f5fcb7 100644 --- a/arch/arm/mach-milbeaut/platsmp.c +++ b/arch/arm/mach-milbeaut/platsmp.c @@ -65,6 +65,7 @@ static void m10v_smp_init(unsigned int max_cpus) writel(KERNEL_UNBOOT_FLAG, m10v_smp_base + cpu * 4); } +#ifdef CONFIG_HOTPLUG_CPU static void m10v_cpu_die(unsigned int l_cpu) { gic_cpu_if_down(0); @@ -83,12 +84,15 @@ static int m10v_cpu_kill(unsigned int l_cpu) return 1; } +#endif static struct smp_operations m10v_smp_ops __initdata = { .smp_prepare_cpus = m10v_smp_init, .smp_boot_secondary = m10v_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU .cpu_die = m10v_cpu_die, .cpu_kill = m10v_cpu_kill, +#endif }; CPU_METHOD_OF_DECLARE(m10v_smp, "socionext,milbeaut-m10v-smp", &m10v_smp_ops); diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c index be30c3c061b4..1b15d593837e 100644 --- a/arch/arm/mach-omap1/board-ams-delta.c +++ b/arch/arm/mach-omap1/board-ams-delta.c @@ -182,6 +182,7 @@ static struct resource latch1_resources[] = { static struct bgpio_pdata latch1_pdata = { .label = LATCH1_LABEL, + .base = -1, .ngpio = LATCH1_NGPIO, }; @@ -219,6 +220,7 @@ static struct resource latch2_resources[] = { static struct bgpio_pdata latch2_pdata = { .label = LATCH2_LABEL, + .base = -1, .ngpio = LATCH2_NGPIO, }; diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 1444b4b4bd9f..439e143cad7b 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -250,8 +250,10 @@ static int __init omapdss_init_of(void) if (!node) return 0; - if (!of_device_is_available(node)) + if (!of_device_is_available(node)) { + of_node_put(node); return 0; + } pdev = of_find_device_by_node(node); diff --git a/arch/arm/plat-iop/adma.c b/arch/arm/plat-iop/adma.c index a4d1f8de3b5b..d9612221e484 100644 --- a/arch/arm/plat-iop/adma.c +++ b/arch/arm/plat-iop/adma.c @@ -143,7 +143,7 @@ struct platform_device iop3xx_dma_0_channel = { .resource = iop3xx_dma_0_resources, .dev = { .dma_mask = &iop3xx_adma_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = (void *) &iop3xx_dma_0_data, }, }; @@ -155,7 +155,7 @@ struct platform_device iop3xx_dma_1_channel = { .resource = iop3xx_dma_1_resources, .dev = { .dma_mask = &iop3xx_adma_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = (void *) &iop3xx_dma_1_data, }, }; @@ -167,7 +167,7 @@ struct platform_device iop3xx_aau_channel = { .resource = iop3xx_aau_resources, .dev = { .dma_mask = &iop3xx_adma_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = (void *) &iop3xx_aau_data, }, }; diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c index a6c81ce00f52..8647cb80a93b 100644 --- a/arch/arm/plat-orion/common.c +++ b/arch/arm/plat-orion/common.c @@ -622,7 +622,7 @@ static struct platform_device orion_xor0_shared = { .resource = orion_xor0_shared_resources, .dev = { .dma_mask = &orion_xor_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &orion_xor0_pdata, }, }; @@ -683,7 +683,7 @@ static struct platform_device orion_xor1_shared = { .resource = orion_xor1_shared_resources, .dev = { .dma_mask = &orion_xor_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(64), + .coherent_dma_mask = DMA_BIT_MASK(32), .platform_data = &orion_xor1_pdata, }, }; diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index 9016f4081bb9..0393917eaa57 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -437,3 +437,7 @@ 421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait 422 common futex_time64 sys_futex 423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 117b2541ef3d..d81adca1b04d 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -149,7 +149,6 @@ config ARM64 select HAVE_PERF_USER_STACK_DUMP select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RCU_TABLE_FREE - select HAVE_RCU_TABLE_INVALIDATE select HAVE_RSEQ select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS @@ -159,7 +158,6 @@ config ARM64 select IRQ_DOMAIN select IRQ_FORCED_THREADING select MODULES_USE_ELF_RELA - select MULTI_IRQ_HANDLER select NEED_DMA_MAP_STATE select NEED_SG_DMA_LENGTH select OF @@ -238,9 +236,6 @@ config LOCKDEP_SUPPORT config TRACE_IRQFLAGS_SUPPORT def_bool y -config RWSEM_XCHGADD_ALGORITHM - def_bool y - config GENERIC_BUG def_bool y depends on BUG diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index 70498a033cf5..b5ca9c50876d 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -27,6 +27,7 @@ config ARCH_BCM2835 bool "Broadcom BCM2835 family" select TIMER_OF select GPIOLIB + select MFD_CORE select PINCTRL select PINCTRL_BCM2835 select ARM_AMBA diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi index 7c649f6b14cb..cd7c76e58b09 100644 --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi @@ -162,6 +162,7 @@ rx-fifo-depth = <16384>; snps,multicast-filter-bins = <256>; iommus = <&smmu 1>; + altr,sysmgr-syscon = <&sysmgr 0x44 0>; status = "disabled"; }; @@ -179,6 +180,7 @@ rx-fifo-depth = <16384>; snps,multicast-filter-bins = <256>; iommus = <&smmu 2>; + altr,sysmgr-syscon = <&sysmgr 0x48 0>; status = "disabled"; }; @@ -196,6 +198,7 @@ rx-fifo-depth = <16384>; snps,multicast-filter-bins = <256>; iommus = <&smmu 3>; + altr,sysmgr-syscon = <&sysmgr 0x4c 0>; status = "disabled"; }; diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi index bb2045be8814..97aeb946ed5e 100644 --- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi @@ -321,7 +321,6 @@ nvidia,default-trim = <0x9>; nvidia,dqs-trim = <63>; mmc-hs400-1_8v; - supports-cqe; status = "disabled"; }; diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi index 61a0afb74e63..1ea684af99c4 100644 --- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi @@ -2,7 +2,7 @@ /* * Device Tree Source for the RZ/G2E (R8A774C0) SoC * - * Copyright (C) 2018 Renesas Electronics Corp. + * Copyright (C) 2018-2019 Renesas Electronics Corp. */ #include <dt-bindings/clock/r8a774c0-cpg-mssr.h> @@ -1150,9 +1150,8 @@ <&cpg CPG_CORE R8A774C0_CLK_S3D1C>, <&scif_clk>; clock-names = "fck", "brg_int", "scif_clk"; - dmas = <&dmac1 0x5b>, <&dmac1 0x5a>, - <&dmac2 0x5b>, <&dmac2 0x5a>; - dma-names = "tx", "rx", "tx", "rx"; + dmas = <&dmac0 0x5b>, <&dmac0 0x5a>; + dma-names = "tx", "rx"; power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>; resets = <&cpg 202>; status = "disabled"; diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi index a69faa60ea4d..d2ad665fe2d9 100644 --- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi @@ -2,7 +2,7 @@ /* * Device Tree Source for the R-Car E3 (R8A77990) SoC * - * Copyright (C) 2018 Renesas Electronics Corp. + * Copyright (C) 2018-2019 Renesas Electronics Corp. */ #include <dt-bindings/clock/r8a77990-cpg-mssr.h> @@ -1067,9 +1067,8 @@ <&cpg CPG_CORE R8A77990_CLK_S3D1C>, <&scif_clk>; clock-names = "fck", "brg_int", "scif_clk"; - dmas = <&dmac1 0x5b>, <&dmac1 0x5a>, - <&dmac2 0x5b>, <&dmac2 0x5a>; - dma-names = "tx", "rx", "tx", "rx"; + dmas = <&dmac0 0x5b>, <&dmac0 0x5a>; + dma-names = "tx", "rx"; power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; resets = <&cpg 202>; status = "disabled"; diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts index 33c44e857247..0e34354b2092 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts @@ -108,8 +108,8 @@ snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>; snps,reset-active-low; snps,reset-delays-us = <0 10000 50000>; - tx_delay = <0x25>; - rx_delay = <0x11>; + tx_delay = <0x24>; + rx_delay = <0x18>; status = "okay"; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts index 2157a528276b..79b4d1d4b5d6 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts +++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts @@ -46,8 +46,7 @@ vcc_host1_5v: vcc_otg_5v: vcc-host1-5v-regulator { compatible = "regulator-fixed"; - enable-active-high; - gpio = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>; + gpio = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>; pinctrl-names = "default"; pinctrl-0 = <&usb20_host_drv>; regulator-name = "vcc_host1_5v"; diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi index 84f14b132e8f..dabef1a21649 100644 --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi @@ -1445,11 +1445,11 @@ sdmmc0 { sdmmc0_clk: sdmmc0-clk { - rockchip,pins = <1 RK_PA6 1 &pcfg_pull_none_4ma>; + rockchip,pins = <1 RK_PA6 1 &pcfg_pull_none_8ma>; }; sdmmc0_cmd: sdmmc0-cmd { - rockchip,pins = <1 RK_PA4 1 &pcfg_pull_up_4ma>; + rockchip,pins = <1 RK_PA4 1 &pcfg_pull_up_8ma>; }; sdmmc0_dectn: sdmmc0-dectn { @@ -1461,14 +1461,14 @@ }; sdmmc0_bus1: sdmmc0-bus1 { - rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_4ma>; + rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_8ma>; }; sdmmc0_bus4: sdmmc0-bus4 { - rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_4ma>, - <1 RK_PA1 1 &pcfg_pull_up_4ma>, - <1 RK_PA2 1 &pcfg_pull_up_4ma>, - <1 RK_PA3 1 &pcfg_pull_up_4ma>; + rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_8ma>, + <1 RK_PA1 1 &pcfg_pull_up_8ma>, + <1 RK_PA2 1 &pcfg_pull_up_8ma>, + <1 RK_PA3 1 &pcfg_pull_up_8ma>; }; sdmmc0_gpio: sdmmc0-gpio { @@ -1642,50 +1642,50 @@ rgmiim1_pins: rgmiim1-pins { rockchip,pins = /* mac_txclk */ - <1 RK_PB4 2 &pcfg_pull_none_12ma>, + <1 RK_PB4 2 &pcfg_pull_none_8ma>, /* mac_rxclk */ - <1 RK_PB5 2 &pcfg_pull_none_2ma>, + <1 RK_PB5 2 &pcfg_pull_none_4ma>, /* mac_mdio */ - <1 RK_PC3 2 &pcfg_pull_none_2ma>, + <1 RK_PC3 2 &pcfg_pull_none_4ma>, /* mac_txen */ - <1 RK_PD1 2 &pcfg_pull_none_12ma>, + <1 RK_PD1 2 &pcfg_pull_none_8ma>, /* mac_clk */ - <1 RK_PC5 2 &pcfg_pull_none_2ma>, + <1 RK_PC5 2 &pcfg_pull_none_4ma>, /* mac_rxdv */ - <1 RK_PC6 2 &pcfg_pull_none_2ma>, + <1 RK_PC6 2 &pcfg_pull_none_4ma>, /* mac_mdc */ - <1 RK_PC7 2 &pcfg_pull_none_2ma>, + <1 RK_PC7 2 &pcfg_pull_none_4ma>, /* mac_rxd1 */ - <1 RK_PB2 2 &pcfg_pull_none_2ma>, + <1 RK_PB2 2 &pcfg_pull_none_4ma>, /* mac_rxd0 */ - <1 RK_PB3 2 &pcfg_pull_none_2ma>, + <1 RK_PB3 2 &pcfg_pull_none_4ma>, /* mac_txd1 */ - <1 RK_PB0 2 &pcfg_pull_none_12ma>, + <1 RK_PB0 2 &pcfg_pull_none_8ma>, /* mac_txd0 */ - <1 RK_PB1 2 &pcfg_pull_none_12ma>, + <1 RK_PB1 2 &pcfg_pull_none_8ma>, /* mac_rxd3 */ - <1 RK_PB6 2 &pcfg_pull_none_2ma>, + <1 RK_PB6 2 &pcfg_pull_none_4ma>, /* mac_rxd2 */ - <1 RK_PB7 2 &pcfg_pull_none_2ma>, + <1 RK_PB7 2 &pcfg_pull_none_4ma>, /* mac_txd3 */ - <1 RK_PC0 2 &pcfg_pull_none_12ma>, + <1 RK_PC0 2 &pcfg_pull_none_8ma>, /* mac_txd2 */ - <1 RK_PC1 2 &pcfg_pull_none_12ma>, + <1 RK_PC1 2 &pcfg_pull_none_8ma>, /* mac_txclk */ - <0 RK_PB0 1 &pcfg_pull_none>, + <0 RK_PB0 1 &pcfg_pull_none_8ma>, /* mac_txen */ - <0 RK_PB4 1 &pcfg_pull_none>, + <0 RK_PB4 1 &pcfg_pull_none_8ma>, /* mac_clk */ - <0 RK_PD0 1 &pcfg_pull_none>, + <0 RK_PD0 1 &pcfg_pull_none_4ma>, /* mac_txd1 */ - <0 RK_PC0 1 &pcfg_pull_none>, + <0 RK_PC0 1 &pcfg_pull_none_8ma>, /* mac_txd0 */ - <0 RK_PC1 1 &pcfg_pull_none>, + <0 RK_PC1 1 &pcfg_pull_none_8ma>, /* mac_txd3 */ - <0 RK_PC7 1 &pcfg_pull_none>, + <0 RK_PC7 1 &pcfg_pull_none_8ma>, /* mac_txd2 */ - <0 RK_PC6 1 &pcfg_pull_none>; + <0 RK_PC6 1 &pcfg_pull_none_8ma>; }; rmiim1_pins: rmiim1-pins { diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts index 4a543f2117d4..844eac939a97 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts @@ -158,6 +158,7 @@ }; &hdmi { + ddc-i2c-bus = <&i2c3>; pinctrl-names = "default"; pinctrl-0 = <&hdmi_cec>; status = "okay"; diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild index 1e17ea5c372b..60a933b07001 100644 --- a/arch/arm64/include/asm/Kbuild +++ b/arch/arm64/include/asm/Kbuild @@ -16,7 +16,6 @@ generic-y += mm-arch-hooks.h generic-y += msi.h generic-y += qrwlock.h generic-y += qspinlock.h -generic-y += rwsem.h generic-y += segment.h generic-y += serial.h generic-y += set_memory.h diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index 2afb1338b48a..5f1437099b99 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -77,6 +77,7 @@ #define ARM_CPU_IMP_QCOM 0x51 #define ARM_CPU_IMP_NVIDIA 0x4E #define ARM_CPU_IMP_FUJITSU 0x46 +#define ARM_CPU_IMP_HISI 0x48 #define ARM_CPU_PART_AEM_V8 0xD0F #define ARM_CPU_PART_FOUNDATION 0xD00 @@ -107,6 +108,8 @@ #define FUJITSU_CPU_PART_A64FX 0x001 +#define HISI_CPU_PART_TSV110 0xD01 + #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53) #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57) #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72) @@ -126,10 +129,11 @@ #define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER) #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL) #define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX) +#define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110) /* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */ #define MIDR_FUJITSU_ERRATUM_010001 MIDR_FUJITSU_A64FX -#define MIDR_FUJITSU_ERRATUM_010001_MASK (~MIDR_VARIANT(1)) +#define MIDR_FUJITSU_ERRATUM_010001_MASK (~MIDR_CPU_VAR_REV(1, 0)) #define TCR_CLEAR_FUJITSU_ERRATUM_010001 (TCR_NFD1 | TCR_NFD0) #ifndef __ASSEMBLY__ diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h index cccb83ad7fa8..c7e1a7837706 100644 --- a/arch/arm64/include/asm/futex.h +++ b/arch/arm64/include/asm/futex.h @@ -30,8 +30,8 @@ do { \ " prfm pstl1strm, %2\n" \ "1: ldxr %w1, %2\n" \ insn "\n" \ -"2: stlxr %w3, %w0, %2\n" \ -" cbnz %w3, 1b\n" \ +"2: stlxr %w0, %w3, %2\n" \ +" cbnz %w0, 1b\n" \ " dmb ish\n" \ "3:\n" \ " .pushsection .fixup,\"ax\"\n" \ @@ -57,23 +57,23 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *_uaddr) switch (op) { case FUTEX_OP_SET: - __futex_atomic_op("mov %w0, %w4", + __futex_atomic_op("mov %w3, %w4", ret, oldval, uaddr, tmp, oparg); break; case FUTEX_OP_ADD: - __futex_atomic_op("add %w0, %w1, %w4", + __futex_atomic_op("add %w3, %w1, %w4", ret, oldval, uaddr, tmp, oparg); break; case FUTEX_OP_OR: - __futex_atomic_op("orr %w0, %w1, %w4", + __futex_atomic_op("orr %w3, %w1, %w4", ret, oldval, uaddr, tmp, oparg); break; case FUTEX_OP_ANDN: - __futex_atomic_op("and %w0, %w1, %w4", + __futex_atomic_op("and %w3, %w1, %w4", ret, oldval, uaddr, tmp, ~oparg); break; case FUTEX_OP_XOR: - __futex_atomic_op("eor %w0, %w1, %w4", + __futex_atomic_op("eor %w3, %w1, %w4", ret, oldval, uaddr, tmp, oparg); break; default: diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index b0742a16c6c9..ebeefcf835e8 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -445,6 +445,17 @@ static inline int kvm_read_guest_lock(struct kvm *kvm, return ret; } +static inline int kvm_write_guest_lock(struct kvm *kvm, gpa_t gpa, + const void *data, unsigned long len) +{ + int srcu_idx = srcu_read_lock(&kvm->srcu); + int ret = kvm_write_guest(kvm, gpa, data, len); + + srcu_read_unlock(&kvm->srcu, srcu_idx); + + return ret; +} + #ifdef CONFIG_KVM_INDIRECT_VECTORS /* * EL2 vectors can be mapped and rerouted in a number of ways, diff --git a/arch/arm64/include/asm/module.h b/arch/arm64/include/asm/module.h index 905e1bb0e7bd..cd9f4e9d04d3 100644 --- a/arch/arm64/include/asm/module.h +++ b/arch/arm64/include/asm/module.h @@ -73,4 +73,9 @@ static inline bool is_forbidden_offset_for_adrp(void *place) struct plt_entry get_plt_entry(u64 dst, void *pc); bool plt_entries_equal(const struct plt_entry *a, const struct plt_entry *b); +static inline bool plt_entry_is_initialized(const struct plt_entry *e) +{ + return e->adrp || e->add || e->br; +} + #endif /* __ASM_MODULE_H */ diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h index ad8be16a39c9..a179df3674a1 100644 --- a/arch/arm64/include/asm/syscall.h +++ b/arch/arm64/include/asm/syscall.h @@ -65,52 +65,22 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; - unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - memset(args_bad, 0, n_bad * sizeof(args[0])); - } - - if (i == 0) { - args[0] = regs->orig_x0; - args++; - i++; - n--; - } - - memcpy(args, ®s->regs[i], n * sizeof(args[0])); + args[0] = regs->orig_x0; + args++; + + memcpy(args, ®s->regs[1], 5 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - n = SYSCALL_MAX_ARGS - i; - } - - if (i == 0) { - regs->orig_x0 = args[0]; - args++; - i++; - n--; - } - - memcpy(®s->regs[i], args, n * sizeof(args[0])); + regs->orig_x0 = args[0]; + args++; + + memcpy(®s->regs[1], args, 5 * sizeof(args[0])); } /* diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h index 106fdc951b6e..37603b5616a5 100644 --- a/arch/arm64/include/asm/tlb.h +++ b/arch/arm64/include/asm/tlb.h @@ -27,6 +27,7 @@ static inline void __tlb_remove_table(void *_table) free_page_and_swap_cache((struct page *)_table); } +#define tlb_flush tlb_flush static void tlb_flush(struct mmu_gather *tlb); #include <asm-generic/tlb.h> diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index d1dd93436e1e..f2a83ff6b73c 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -44,7 +44,7 @@ #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5) #define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800) -#define __NR_compat_syscalls 424 +#define __NR_compat_syscalls 428 #endif #define __ARCH_WANT_SYS_CLONE diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 5590f2623690..23f1a44acada 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -866,6 +866,14 @@ __SYSCALL(__NR_rt_sigtimedwait_time64, compat_sys_rt_sigtimedwait_time64) __SYSCALL(__NR_futex_time64, sys_futex) #define __NR_sched_rr_get_interval_time64 423 __SYSCALL(__NR_sched_rr_get_interval_time64, sys_sched_rr_get_interval) +#define __NR_pidfd_send_signal 424 +__SYSCALL(__NR_pidfd_send_signal, sys_pidfd_send_signal) +#define __NR_io_uring_setup 425 +__SYSCALL(__NR_io_uring_setup, sys_io_uring_setup) +#define __NR_io_uring_enter 426 +__SYSCALL(__NR_io_uring_enter, sys_io_uring_enter) +#define __NR_io_uring_register 427 +__SYSCALL(__NR_io_uring_register, sys_io_uring_register) /* * Please add new compat syscalls above this comment and update diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index e24e94d28767..4061de10cea6 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -963,6 +963,7 @@ static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry, MIDR_ALL_VERSIONS(MIDR_CORTEX_A57), MIDR_ALL_VERSIONS(MIDR_CORTEX_A72), MIDR_ALL_VERSIONS(MIDR_CORTEX_A73), + MIDR_ALL_VERSIONS(MIDR_HISI_TSV110), { /* sentinel */ } }; char const *str = "command line option"; diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c index 8e4431a8821f..65a51331088e 100644 --- a/arch/arm64/kernel/ftrace.c +++ b/arch/arm64/kernel/ftrace.c @@ -103,12 +103,16 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) * to be revisited if support for multiple ftrace entry points * is added in the future, but for now, the pr_err() below * deals with a theoretical issue only. + * + * Note that PLTs are place relative, and plt_entries_equal() + * checks whether they point to the same target. Here, we need + * to check if the actual opcodes are in fact identical, + * regardless of the offset in memory so use memcmp() instead. */ trampoline = get_plt_entry(addr, mod->arch.ftrace_trampoline); - if (!plt_entries_equal(mod->arch.ftrace_trampoline, - &trampoline)) { - if (!plt_entries_equal(mod->arch.ftrace_trampoline, - &(struct plt_entry){})) { + if (memcmp(mod->arch.ftrace_trampoline, &trampoline, + sizeof(trampoline))) { + if (plt_entry_is_initialized(mod->arch.ftrace_trampoline)) { pr_err("ftrace: far branches to multiple entry points unsupported inside a single module\n"); return -EINVAL; } diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c index 7fb6f3aa5ceb..7a679caf4585 100644 --- a/arch/arm64/kernel/probes/kprobes.c +++ b/arch/arm64/kernel/probes/kprobes.c @@ -91,8 +91,6 @@ static void __kprobes arch_simulate_insn(struct kprobe *p, struct pt_regs *regs) int __kprobes arch_prepare_kprobe(struct kprobe *p) { unsigned long probe_addr = (unsigned long)p->addr; - extern char __start_rodata[]; - extern char __end_rodata[]; if (probe_addr & 0x3) return -EINVAL; @@ -100,10 +98,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) /* copy instruction */ p->opcode = le32_to_cpu(*p->addr); - if (in_exception_text(probe_addr)) - return -EINVAL; - if (probe_addr >= (unsigned long) __start_rodata && - probe_addr <= (unsigned long) __end_rodata) + if (search_exception_tables(probe_addr)) return -EINVAL; /* decode instruction */ @@ -476,26 +471,37 @@ kprobe_breakpoint_handler(struct pt_regs *regs, unsigned int esr) return DBG_HOOK_HANDLED; } -bool arch_within_kprobe_blacklist(unsigned long addr) +/* + * Provide a blacklist of symbols identifying ranges which cannot be kprobed. + * This blacklist is exposed to userspace via debugfs (kprobes/blacklist). + */ +int __init arch_populate_kprobe_blacklist(void) { - if ((addr >= (unsigned long)__kprobes_text_start && - addr < (unsigned long)__kprobes_text_end) || - (addr >= (unsigned long)__entry_text_start && - addr < (unsigned long)__entry_text_end) || - (addr >= (unsigned long)__idmap_text_start && - addr < (unsigned long)__idmap_text_end) || - (addr >= (unsigned long)__hyp_text_start && - addr < (unsigned long)__hyp_text_end) || - !!search_exception_tables(addr)) - return true; - - if (!is_kernel_in_hyp_mode()) { - if ((addr >= (unsigned long)__hyp_idmap_text_start && - addr < (unsigned long)__hyp_idmap_text_end)) - return true; - } - - return false; + int ret; + + ret = kprobe_add_area_blacklist((unsigned long)__entry_text_start, + (unsigned long)__entry_text_end); + if (ret) + return ret; + ret = kprobe_add_area_blacklist((unsigned long)__irqentry_text_start, + (unsigned long)__irqentry_text_end); + if (ret) + return ret; + ret = kprobe_add_area_blacklist((unsigned long)__exception_text_start, + (unsigned long)__exception_text_end); + if (ret) + return ret; + ret = kprobe_add_area_blacklist((unsigned long)__idmap_text_start, + (unsigned long)__idmap_text_end); + if (ret) + return ret; + ret = kprobe_add_area_blacklist((unsigned long)__hyp_text_start, + (unsigned long)__hyp_text_end); + if (ret || is_kernel_in_hyp_mode()) + return ret; + ret = kprobe_add_area_blacklist((unsigned long)__hyp_idmap_text_start, + (unsigned long)__hyp_idmap_text_end); + return ret; } void __kprobes __used *trampoline_probe_handler(struct pt_regs *regs) diff --git a/arch/arm64/kernel/sdei.c b/arch/arm64/kernel/sdei.c index 5ba4465e44f0..ea94cf8f9dc6 100644 --- a/arch/arm64/kernel/sdei.c +++ b/arch/arm64/kernel/sdei.c @@ -94,6 +94,9 @@ static bool on_sdei_normal_stack(unsigned long sp, struct stack_info *info) unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr); unsigned long high = low + SDEI_STACK_SIZE; + if (!low) + return false; + if (sp < low || sp >= high) return false; @@ -111,6 +114,9 @@ static bool on_sdei_critical_stack(unsigned long sp, struct stack_info *info) unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_critical_ptr); unsigned long high = low + SDEI_STACK_SIZE; + if (!low) + return false; + if (sp < low || sp >= high) return false; diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index f8482fe5a190..413d566405d1 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -217,7 +217,7 @@ static void __init request_standard_resources(void) num_standard_resources = memblock.memory.cnt; res_size = num_standard_resources * sizeof(*standard_resources); - standard_resources = memblock_alloc_low(res_size, SMP_CACHE_BYTES); + standard_resources = memblock_alloc(res_size, SMP_CACHE_BYTES); if (!standard_resources) panic("%s: Failed to allocate %zu bytes\n", __func__, res_size); diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index 1a29f2695ff2..b00ec7d483d1 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -140,9 +140,8 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace) #endif walk_stackframe(current, &frame, save_trace, &data); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } +EXPORT_SYMBOL_GPL(save_stack_trace_regs); static noinline void __save_stack_trace(struct task_struct *tsk, struct stack_trace *trace, unsigned int nosched) @@ -171,8 +170,6 @@ static noinline void __save_stack_trace(struct task_struct *tsk, #endif walk_stackframe(tsk, &frame, save_trace, &data); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; put_task_stack(tsk); } diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 8ad119c3f665..29755989f616 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -102,10 +102,16 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) { struct stackframe frame; - int skip; + int skip = 0; pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk); + if (regs) { + if (user_mode(regs)) + return; + skip = 1; + } + if (!tsk) tsk = current; @@ -126,7 +132,6 @@ void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) frame.graph = 0; #endif - skip = !!regs; printk("Call trace:\n"); do { /* skip until specified stack frame */ @@ -176,15 +181,13 @@ static int __die(const char *str, int err, struct pt_regs *regs) return ret; print_modules(); - __show_regs(regs); pr_emerg("Process %.*s (pid: %d, stack limit = 0x%p)\n", TASK_COMM_LEN, tsk->comm, task_pid_nr(tsk), end_of_stack(tsk)); + show_regs(regs); - if (!user_mode(regs)) { - dump_backtrace(regs, tsk); + if (!user_mode(regs)) dump_instr(KERN_EMERG, regs); - } return ret; } diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index f16a5f8ff2b4..e2a0500cd7a2 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -123,6 +123,9 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) int ret = -EINVAL; bool loaded; + /* Reset PMU outside of the non-preemptible section */ + kvm_pmu_vcpu_reset(vcpu); + preempt_disable(); loaded = (vcpu->cpu != -1); if (loaded) @@ -170,9 +173,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) vcpu->arch.reset_state.reset = false; } - /* Reset PMU */ - kvm_pmu_vcpu_reset(vcpu); - /* Default workaround setup is enabled (if supported) */ if (kvm_arm_have_ssbd() == KVM_SSBD_KERNEL) vcpu->arch.workaround_flags |= VCPU_WORKAROUND_2_FLAG; diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 6bc135042f5e..7cae155e81a5 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -363,7 +363,7 @@ void __init arm64_memblock_init(void) * Otherwise, this is a no-op */ u64 base = phys_initrd_start & PAGE_MASK; - u64 size = PAGE_ALIGN(phys_initrd_size); + u64 size = PAGE_ALIGN(phys_initrd_start + phys_initrd_size) - base; /* * We can only add back the initrd memory if we don't end up diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig index e5cd3c5f8399..eeb0471268a0 100644 --- a/arch/c6x/Kconfig +++ b/arch/c6x/Kconfig @@ -20,6 +20,7 @@ config C6X select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA select ARCH_NO_COHERENT_DMA_MMAP + select MMU_GATHER_NO_RANGE if MMU config MMU def_bool n @@ -27,9 +28,6 @@ config MMU config FPU def_bool n -config RWSEM_GENERIC_SPINLOCK - def_bool y - config GENERIC_CALIBRATE_DELAY def_bool y diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild index 63b4a1705182..249c9f6f26dc 100644 --- a/arch/c6x/include/asm/Kbuild +++ b/arch/c6x/include/asm/Kbuild @@ -19,6 +19,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h diff --git a/arch/c6x/include/asm/syscall.h b/arch/c6x/include/asm/syscall.h index ae2be315ee9c..15ba8599858e 100644 --- a/arch/c6x/include/asm/syscall.h +++ b/arch/c6x/include/asm/syscall.h @@ -46,78 +46,27 @@ static inline void syscall_set_return_value(struct task_struct *task, } static inline void syscall_get_arguments(struct task_struct *task, - struct pt_regs *regs, unsigned int i, - unsigned int n, unsigned long *args) + struct pt_regs *regs, + unsigned long *args) { - switch (i) { - case 0: - if (!n--) - break; - *args++ = regs->a4; - case 1: - if (!n--) - break; - *args++ = regs->b4; - case 2: - if (!n--) - break; - *args++ = regs->a6; - case 3: - if (!n--) - break; - *args++ = regs->b6; - case 4: - if (!n--) - break; - *args++ = regs->a8; - case 5: - if (!n--) - break; - *args++ = regs->b8; - case 6: - if (!n--) - break; - default: - BUG(); - } + *args++ = regs->a4; + *args++ = regs->b4; + *args++ = regs->a6; + *args++ = regs->b6; + *args++ = regs->a8; + *args = regs->b8; } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - switch (i) { - case 0: - if (!n--) - break; - regs->a4 = *args++; - case 1: - if (!n--) - break; - regs->b4 = *args++; - case 2: - if (!n--) - break; - regs->a6 = *args++; - case 3: - if (!n--) - break; - regs->b6 = *args++; - case 4: - if (!n--) - break; - regs->a8 = *args++; - case 5: - if (!n--) - break; - regs->a9 = *args++; - case 6: - if (!n) - break; - default: - BUG(); - } + regs->a4 = *args++; + regs->b4 = *args++; + regs->a6 = *args++; + regs->b6 = *args++; + regs->a8 = *args++; + regs->a9 = *args; } #endif /* __ASM_C6X_SYSCALLS_H */ diff --git a/arch/c6x/include/asm/tlb.h b/arch/c6x/include/asm/tlb.h index 34525dea1356..240ba0febb57 100644 --- a/arch/c6x/include/asm/tlb.h +++ b/arch/c6x/include/asm/tlb.h @@ -2,8 +2,6 @@ #ifndef _ASM_C6X_TLB_H #define _ASM_C6X_TLB_H -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - #include <asm-generic/tlb.h> #endif /* _ASM_C6X_TLB_H */ diff --git a/arch/c6x/include/uapi/asm/Kbuild b/arch/c6x/include/uapi/asm/Kbuild index 755bb11323d8..1c72f04ff75d 100644 --- a/arch/c6x/include/uapi/asm/Kbuild +++ b/arch/c6x/include/uapi/asm/Kbuild @@ -1,2 +1 @@ -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index 725a115759c9..6555d1781132 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -92,9 +92,6 @@ config GENERIC_HWEIGHT config MMU def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool y - config STACKTRACE_SUPPORT def_bool y diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h index d637445737b7..bda0a446c63e 100644 --- a/arch/csky/include/asm/syscall.h +++ b/arch/csky/include/asm/syscall.h @@ -43,30 +43,20 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) + unsigned long *args) { - BUG_ON(i + n > 6); - if (i == 0) { - args[0] = regs->orig_a0; - args++; - i++; - n--; - } - memcpy(args, ®s->a1 + i * sizeof(regs->a1), n * sizeof(args[0])); + args[0] = regs->orig_a0; + args++; + memcpy(args, ®s->a1, 5 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) + const unsigned long *args) { - BUG_ON(i + n > 6); - if (i == 0) { - regs->orig_a0 = args[0]; - args++; - i++; - n--; - } - memcpy(®s->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0)); + regs->orig_a0 = args[0]; + args++; + memcpy(®s->a1, args, 5 * sizeof(regs->a1)); } static inline int diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index c071da34e081..61c01db6c292 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -27,9 +27,6 @@ config H8300 config CPU_BIG_ENDIAN def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool y - config GENERIC_HWEIGHT def_bool y diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild index 3e7c8ecf151e..e3dead402e5f 100644 --- a/arch/h8300/include/asm/Kbuild +++ b/arch/h8300/include/asm/Kbuild @@ -23,6 +23,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += linkage.h generic-y += local.h generic-y += local64.h diff --git a/arch/h8300/include/asm/syscall.h b/arch/h8300/include/asm/syscall.h index 924990401237..ddd483c6ca95 100644 --- a/arch/h8300/include/asm/syscall.h +++ b/arch/h8300/include/asm/syscall.h @@ -17,34 +17,14 @@ syscall_get_nr(struct task_struct *task, struct pt_regs *regs) static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) + unsigned long *args) { - BUG_ON(i + n > 6); - - while (n > 0) { - switch (i) { - case 0: - *args++ = regs->er1; - break; - case 1: - *args++ = regs->er2; - break; - case 2: - *args++ = regs->er3; - break; - case 3: - *args++ = regs->er4; - break; - case 4: - *args++ = regs->er5; - break; - case 5: - *args++ = regs->er6; - break; - } - i++; - n--; - } + *args++ = regs->er1; + *args++ = regs->er2; + *args++ = regs->er3; + *args++ = regs->er4; + *args++ = regs->er5; + *args = regs->er6; } diff --git a/arch/h8300/include/asm/tlb.h b/arch/h8300/include/asm/tlb.h index 98f344279904..d8201ca31206 100644 --- a/arch/h8300/include/asm/tlb.h +++ b/arch/h8300/include/asm/tlb.h @@ -2,8 +2,6 @@ #ifndef __H8300_TLB_H__ #define __H8300_TLB_H__ -#define tlb_flush(tlb) do { } while (0) - #include <asm-generic/tlb.h> #endif diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild index 755bb11323d8..1c72f04ff75d 100644 --- a/arch/h8300/include/uapi/asm/Kbuild +++ b/arch/h8300/include/uapi/asm/Kbuild @@ -1,2 +1 @@ -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index ac441680dcc0..3e54a53208d5 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -65,12 +65,6 @@ config GENERIC_CSUM config GENERIC_IRQ_PROBE def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool n - -config RWSEM_XCHGADD_ALGORITHM - def_bool y - config GENERIC_HWEIGHT def_bool y diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild index b25fd42aa0f4..3ff5f297acda 100644 --- a/arch/hexagon/include/asm/Kbuild +++ b/arch/hexagon/include/asm/Kbuild @@ -19,6 +19,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h @@ -26,7 +27,6 @@ generic-y += mm-arch-hooks.h generic-y += pci.h generic-y += percpu.h generic-y += preempt.h -generic-y += rwsem.h generic-y += sections.h generic-y += segment.h generic-y += serial.h diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h index 4af9c7b6f13a..ae3a1e24fabd 100644 --- a/arch/hexagon/include/asm/syscall.h +++ b/arch/hexagon/include/asm/syscall.h @@ -37,10 +37,8 @@ static inline long syscall_get_nr(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - memcpy(args, &(®s->r00)[i], n * sizeof(args[0])); + memcpy(args, &(®s->r00)[0], 6 * sizeof(args[0])); } #endif diff --git a/arch/hexagon/include/asm/tlb.h b/arch/hexagon/include/asm/tlb.h index 2f00772cc08a..f71c4ba83614 100644 --- a/arch/hexagon/include/asm/tlb.h +++ b/arch/hexagon/include/asm/tlb.h @@ -22,18 +22,6 @@ #include <linux/pagemap.h> #include <asm/tlbflush.h> -/* - * We don't need any special per-pte or per-vma handling... - */ -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) - -/* - * .. because we flush the whole mm when it fills up - */ -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - #include <asm-generic/tlb.h> #endif diff --git a/arch/hexagon/include/uapi/asm/kvm_para.h b/arch/hexagon/include/uapi/asm/kvm_para.h deleted file mode 100644 index baacc4996d18..000000000000 --- a/arch/hexagon/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/kvm_para.h> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 8d7396bd1790..73a26f04644e 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -83,10 +83,6 @@ config STACKTRACE_SUPPORT config GENERIC_LOCKBREAK def_bool n -config RWSEM_XCHGADD_ALGORITHM - bool - default y - config HUGETLB_PAGE_SIZE_VARIABLE bool depends on HUGETLB_PAGE diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild index 43e21fe3499c..11f191689c9e 100644 --- a/arch/ia64/include/asm/Kbuild +++ b/arch/ia64/include/asm/Kbuild @@ -2,6 +2,7 @@ generated-y += syscall_table.h generic-y += compat.h generic-y += exec.h generic-y += irq_work.h +generic-y += kvm_para.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h generic-y += preempt.h diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 5133739966bc..beae261fbcb4 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -30,7 +30,6 @@ typedef void ia64_mv_irq_init_t (void); typedef void ia64_mv_send_ipi_t (int, int, int, int); typedef void ia64_mv_timer_interrupt_t (int, void *); typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long); -typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *); typedef u8 ia64_mv_irq_to_vector (int); typedef unsigned int ia64_mv_local_vector_to_irq (u8); typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *); @@ -80,11 +79,6 @@ machvec_noop (void) } static inline void -machvec_noop_mm (struct mm_struct *mm) -{ -} - -static inline void machvec_noop_task (struct task_struct *task) { } @@ -96,7 +90,6 @@ machvec_noop_bus (struct pci_bus *bus) extern void machvec_setup (char **); extern void machvec_timer_interrupt (int, void *); -extern void machvec_tlb_migrate_finish (struct mm_struct *); # if defined (CONFIG_IA64_HP_SIM) # include <asm/machvec_hpsim.h> @@ -124,7 +117,6 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); # define platform_send_ipi ia64_mv.send_ipi # define platform_timer_interrupt ia64_mv.timer_interrupt # define platform_global_tlb_purge ia64_mv.global_tlb_purge -# define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish # define platform_dma_init ia64_mv.dma_init # define platform_dma_get_ops ia64_mv.dma_get_ops # define platform_irq_to_vector ia64_mv.irq_to_vector @@ -167,7 +159,6 @@ struct ia64_machine_vector { ia64_mv_send_ipi_t *send_ipi; ia64_mv_timer_interrupt_t *timer_interrupt; ia64_mv_global_tlb_purge_t *global_tlb_purge; - ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish; ia64_mv_dma_init *dma_init; ia64_mv_dma_get_ops *dma_get_ops; ia64_mv_irq_to_vector *irq_to_vector; @@ -206,7 +197,6 @@ struct ia64_machine_vector { platform_send_ipi, \ platform_timer_interrupt, \ platform_global_tlb_purge, \ - platform_tlb_migrate_finish, \ platform_dma_init, \ platform_dma_get_ops, \ platform_irq_to_vector, \ @@ -270,9 +260,6 @@ extern const struct dma_map_ops *dma_get_ops(struct device *); #ifndef platform_global_tlb_purge # define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */ #endif -#ifndef platform_tlb_migrate_finish -# define platform_tlb_migrate_finish machvec_noop_mm -#endif #ifndef platform_kernel_launch_event # define platform_kernel_launch_event machvec_noop #endif diff --git a/arch/ia64/include/asm/machvec_sn2.h b/arch/ia64/include/asm/machvec_sn2.h index b5153d300289..a243e4fb4877 100644 --- a/arch/ia64/include/asm/machvec_sn2.h +++ b/arch/ia64/include/asm/machvec_sn2.h @@ -34,7 +34,6 @@ extern ia64_mv_irq_init_t sn_irq_init; extern ia64_mv_send_ipi_t sn2_send_IPI; extern ia64_mv_timer_interrupt_t sn_timer_interrupt; extern ia64_mv_global_tlb_purge_t sn2_global_tlb_purge; -extern ia64_mv_tlb_migrate_finish_t sn_tlb_migrate_finish; extern ia64_mv_irq_to_vector sn_irq_to_vector; extern ia64_mv_local_vector_to_irq sn_local_vector_to_irq; extern ia64_mv_pci_get_legacy_mem_t sn_pci_get_legacy_mem; @@ -77,7 +76,6 @@ extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus; #define platform_send_ipi sn2_send_IPI #define platform_timer_interrupt sn_timer_interrupt #define platform_global_tlb_purge sn2_global_tlb_purge -#define platform_tlb_migrate_finish sn_tlb_migrate_finish #define platform_pci_fixup sn_pci_fixup #define platform_inb __sn_inb #define platform_inw __sn_inw diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h deleted file mode 100644 index 917910607e0e..000000000000 --- a/arch/ia64/include/asm/rwsem.h +++ /dev/null @@ -1,172 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * R/W semaphores for ia64 - * - * Copyright (C) 2003 Ken Chen <kenneth.w.chen@intel.com> - * Copyright (C) 2003 Asit Mallick <asit.k.mallick@intel.com> - * Copyright (C) 2005 Christoph Lameter <cl@linux.com> - * - * Based on asm-i386/rwsem.h and other architecture implementation. - * - * The MSW of the count is the negated number of active writers and - * waiting lockers, and the LSW is the total number of active locks. - * - * The lock count is initialized to 0 (no active and no waiting lockers). - * - * When a writer subtracts WRITE_BIAS, it'll get 0xffffffff00000001 for - * the case of an uncontended lock. Readers increment by 1 and see a positive - * value when uncontended, negative if there are writers (and maybe) readers - * waiting (in which case it goes to sleep). - */ - -#ifndef _ASM_IA64_RWSEM_H -#define _ASM_IA64_RWSEM_H - -#ifndef _LINUX_RWSEM_H -#error "Please don't include <asm/rwsem.h> directly, use <linux/rwsem.h> instead." -#endif - -#include <asm/intrinsics.h> - -#define RWSEM_UNLOCKED_VALUE __IA64_UL_CONST(0x0000000000000000) -#define RWSEM_ACTIVE_BIAS (1L) -#define RWSEM_ACTIVE_MASK (0xffffffffL) -#define RWSEM_WAITING_BIAS (-0x100000000L) -#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS -#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) - -/* - * lock for reading - */ -static inline int -___down_read (struct rw_semaphore *sem) -{ - long result = ia64_fetchadd8_acq((unsigned long *)&sem->count.counter, 1); - - return (result < 0); -} - -static inline void -__down_read (struct rw_semaphore *sem) -{ - if (___down_read(sem)) - rwsem_down_read_failed(sem); -} - -static inline int -__down_read_killable (struct rw_semaphore *sem) -{ - if (___down_read(sem)) - if (IS_ERR(rwsem_down_read_failed_killable(sem))) - return -EINTR; - - return 0; -} - -/* - * lock for writing - */ -static inline long -___down_write (struct rw_semaphore *sem) -{ - long old, new; - - do { - old = atomic_long_read(&sem->count); - new = old + RWSEM_ACTIVE_WRITE_BIAS; - } while (atomic_long_cmpxchg_acquire(&sem->count, old, new) != old); - - return old; -} - -static inline void -__down_write (struct rw_semaphore *sem) -{ - if (___down_write(sem)) - rwsem_down_write_failed(sem); -} - -static inline int -__down_write_killable (struct rw_semaphore *sem) -{ - if (___down_write(sem)) { - if (IS_ERR(rwsem_down_write_failed_killable(sem))) - return -EINTR; - } - - return 0; -} - -/* - * unlock after reading - */ -static inline void -__up_read (struct rw_semaphore *sem) -{ - long result = ia64_fetchadd8_rel((unsigned long *)&sem->count.counter, -1); - - if (result < 0 && (--result & RWSEM_ACTIVE_MASK) == 0) - rwsem_wake(sem); -} - -/* - * unlock after writing - */ -static inline void -__up_write (struct rw_semaphore *sem) -{ - long old, new; - - do { - old = atomic_long_read(&sem->count); - new = old - RWSEM_ACTIVE_WRITE_BIAS; - } while (atomic_long_cmpxchg_release(&sem->count, old, new) != old); - - if (new < 0 && (new & RWSEM_ACTIVE_MASK) == 0) - rwsem_wake(sem); -} - -/* - * trylock for reading -- returns 1 if successful, 0 if contention - */ -static inline int -__down_read_trylock (struct rw_semaphore *sem) -{ - long tmp; - while ((tmp = atomic_long_read(&sem->count)) >= 0) { - if (tmp == atomic_long_cmpxchg_acquire(&sem->count, tmp, tmp+1)) { - return 1; - } - } - return 0; -} - -/* - * trylock for writing -- returns 1 if successful, 0 if contention - */ -static inline int -__down_write_trylock (struct rw_semaphore *sem) -{ - long tmp = atomic_long_cmpxchg_acquire(&sem->count, - RWSEM_UNLOCKED_VALUE, RWSEM_ACTIVE_WRITE_BIAS); - return tmp == RWSEM_UNLOCKED_VALUE; -} - -/* - * downgrade write lock to read lock - */ -static inline void -__downgrade_write (struct rw_semaphore *sem) -{ - long old, new; - - do { - old = atomic_long_read(&sem->count); - new = old - RWSEM_WAITING_BIAS; - } while (atomic_long_cmpxchg_release(&sem->count, old, new) != old); - - if (old < 0) - rwsem_downgrade_wake(sem); -} - -#endif /* _ASM_IA64_RWSEM_H */ diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h index 1d0b875fec44..0d9e7fab4a79 100644 --- a/arch/ia64/include/asm/syscall.h +++ b/arch/ia64/include/asm/syscall.h @@ -59,26 +59,19 @@ static inline void syscall_set_return_value(struct task_struct *task, } extern void ia64_syscall_get_set_arguments(struct task_struct *task, - struct pt_regs *regs, unsigned int i, unsigned int n, - unsigned long *args, int rw); + struct pt_regs *regs, unsigned long *args, int rw); static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - - ia64_syscall_get_set_arguments(task, regs, i, n, args, 0); + ia64_syscall_get_set_arguments(task, regs, args, 0); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - - ia64_syscall_get_set_arguments(task, regs, i, n, args, 1); + ia64_syscall_get_set_arguments(task, regs, args, 1); } static inline int syscall_get_arch(void) diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h index 516355a774bf..86ec034ba499 100644 --- a/arch/ia64/include/asm/tlb.h +++ b/arch/ia64/include/asm/tlb.h @@ -47,263 +47,6 @@ #include <asm/tlbflush.h> #include <asm/machvec.h> -/* - * If we can't allocate a page to make a big batch of page pointers - * to work on, then just handle a few from the on-stack structure. - */ -#define IA64_GATHER_BUNDLE 8 - -struct mmu_gather { - struct mm_struct *mm; - unsigned int nr; - unsigned int max; - unsigned char fullmm; /* non-zero means full mm flush */ - unsigned char need_flush; /* really unmapped some PTEs? */ - unsigned long start, end; - unsigned long start_addr; - unsigned long end_addr; - struct page **pages; - struct page *local[IA64_GATHER_BUNDLE]; -}; - -struct ia64_tr_entry { - u64 ifa; - u64 itir; - u64 pte; - u64 rr; -}; /*Record for tr entry!*/ - -extern int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size); -extern void ia64_ptr_entry(u64 target_mask, int slot); - -extern struct ia64_tr_entry *ia64_idtrs[NR_CPUS]; - -/* - region register macros -*/ -#define RR_TO_VE(val) (((val) >> 0) & 0x0000000000000001) -#define RR_VE(val) (((val) & 0x0000000000000001) << 0) -#define RR_VE_MASK 0x0000000000000001L -#define RR_VE_SHIFT 0 -#define RR_TO_PS(val) (((val) >> 2) & 0x000000000000003f) -#define RR_PS(val) (((val) & 0x000000000000003f) << 2) -#define RR_PS_MASK 0x00000000000000fcL -#define RR_PS_SHIFT 2 -#define RR_RID_MASK 0x00000000ffffff00L -#define RR_TO_RID(val) ((val >> 8) & 0xffffff) - -static inline void -ia64_tlb_flush_mmu_tlbonly(struct mmu_gather *tlb, unsigned long start, unsigned long end) -{ - tlb->need_flush = 0; - - if (tlb->fullmm) { - /* - * Tearing down the entire address space. This happens both as a result - * of exit() and execve(). The latter case necessitates the call to - * flush_tlb_mm() here. - */ - flush_tlb_mm(tlb->mm); - } else if (unlikely (end - start >= 1024*1024*1024*1024UL - || REGION_NUMBER(start) != REGION_NUMBER(end - 1))) - { - /* - * If we flush more than a tera-byte or across regions, we're probably - * better off just flushing the entire TLB(s). This should be very rare - * and is not worth optimizing for. - */ - flush_tlb_all(); - } else { - /* - * flush_tlb_range() takes a vma instead of a mm pointer because - * some architectures want the vm_flags for ITLB/DTLB flush. - */ - struct vm_area_struct vma = TLB_FLUSH_VMA(tlb->mm, 0); - - /* flush the address range from the tlb: */ - flush_tlb_range(&vma, start, end); - /* now flush the virt. page-table area mapping the address range: */ - flush_tlb_range(&vma, ia64_thash(start), ia64_thash(end)); - } - -} - -static inline void -ia64_tlb_flush_mmu_free(struct mmu_gather *tlb) -{ - unsigned long i; - unsigned int nr; - - /* lastly, release the freed pages */ - nr = tlb->nr; - - tlb->nr = 0; - tlb->start_addr = ~0UL; - for (i = 0; i < nr; ++i) - free_page_and_swap_cache(tlb->pages[i]); -} - -/* - * Flush the TLB for address range START to END and, if not in fast mode, release the - * freed pages that where gathered up to this point. - */ -static inline void -ia64_tlb_flush_mmu (struct mmu_gather *tlb, unsigned long start, unsigned long end) -{ - if (!tlb->need_flush) - return; - ia64_tlb_flush_mmu_tlbonly(tlb, start, end); - ia64_tlb_flush_mmu_free(tlb); -} - -static inline void __tlb_alloc_page(struct mmu_gather *tlb) -{ - unsigned long addr = __get_free_pages(GFP_NOWAIT | __GFP_NOWARN, 0); - - if (addr) { - tlb->pages = (void *)addr; - tlb->max = PAGE_SIZE / sizeof(void *); - } -} - - -static inline void -arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, - unsigned long start, unsigned long end) -{ - tlb->mm = mm; - tlb->max = ARRAY_SIZE(tlb->local); - tlb->pages = tlb->local; - tlb->nr = 0; - tlb->fullmm = !(start | (end+1)); - tlb->start = start; - tlb->end = end; - tlb->start_addr = ~0UL; -} - -/* - * Called at the end of the shootdown operation to free up any resources that were - * collected. - */ -static inline void -arch_tlb_finish_mmu(struct mmu_gather *tlb, - unsigned long start, unsigned long end, bool force) -{ - if (force) - tlb->need_flush = 1; - /* - * Note: tlb->nr may be 0 at this point, so we can't rely on tlb->start_addr and - * tlb->end_addr. - */ - ia64_tlb_flush_mmu(tlb, start, end); - - /* keep the page table cache within bounds */ - check_pgt_cache(); - - if (tlb->pages != tlb->local) - free_pages((unsigned long)tlb->pages, 0); -} - -/* - * Logically, this routine frees PAGE. On MP machines, the actual freeing of the page - * must be delayed until after the TLB has been flushed (see comments at the beginning of - * this file). - */ -static inline bool __tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - tlb->need_flush = 1; - - if (!tlb->nr && tlb->pages == tlb->local) - __tlb_alloc_page(tlb); - - tlb->pages[tlb->nr++] = page; - VM_WARN_ON(tlb->nr > tlb->max); - if (tlb->nr == tlb->max) - return true; - return false; -} - -static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) -{ - ia64_tlb_flush_mmu_tlbonly(tlb, tlb->start_addr, tlb->end_addr); -} - -static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) -{ - ia64_tlb_flush_mmu_free(tlb); -} - -static inline void tlb_flush_mmu(struct mmu_gather *tlb) -{ - ia64_tlb_flush_mmu(tlb, tlb->start_addr, tlb->end_addr); -} - -static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - if (__tlb_remove_page(tlb, page)) - tlb_flush_mmu(tlb); -} - -static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return __tlb_remove_page(tlb, page); -} - -static inline void tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return tlb_remove_page(tlb, page); -} - -/* - * Remove TLB entry for PTE mapped at virtual address ADDRESS. This is called for any - * PTE, not just those pointing to (normal) physical memory. - */ -static inline void -__tlb_remove_tlb_entry (struct mmu_gather *tlb, pte_t *ptep, unsigned long address) -{ - if (tlb->start_addr == ~0UL) - tlb->start_addr = address; - tlb->end_addr = address + PAGE_SIZE; -} - -#define tlb_migrate_finish(mm) platform_tlb_migrate_finish(mm) - -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) - -#define tlb_remove_tlb_entry(tlb, ptep, addr) \ -do { \ - tlb->need_flush = 1; \ - __tlb_remove_tlb_entry(tlb, ptep, addr); \ -} while (0) - -#define tlb_remove_huge_tlb_entry(h, tlb, ptep, address) \ - tlb_remove_tlb_entry(tlb, ptep, address) - -#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change -static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, - unsigned int page_size) -{ -} - -#define pte_free_tlb(tlb, ptep, address) \ -do { \ - tlb->need_flush = 1; \ - __pte_free_tlb(tlb, ptep, address); \ -} while (0) - -#define pmd_free_tlb(tlb, ptep, address) \ -do { \ - tlb->need_flush = 1; \ - __pmd_free_tlb(tlb, ptep, address); \ -} while (0) - -#define pud_free_tlb(tlb, pudp, address) \ -do { \ - tlb->need_flush = 1; \ - __pud_free_tlb(tlb, pudp, address); \ -} while (0) +#include <asm-generic/tlb.h> #endif /* _ASM_IA64_TLB_H */ diff --git a/arch/ia64/include/asm/tlbflush.h b/arch/ia64/include/asm/tlbflush.h index 25e280810f6c..ceac10c4d6e2 100644 --- a/arch/ia64/include/asm/tlbflush.h +++ b/arch/ia64/include/asm/tlbflush.h @@ -14,6 +14,31 @@ #include <asm/mmu_context.h> #include <asm/page.h> +struct ia64_tr_entry { + u64 ifa; + u64 itir; + u64 pte; + u64 rr; +}; /*Record for tr entry!*/ + +extern int ia64_itr_entry(u64 target_mask, u64 va, u64 pte, u64 log_size); +extern void ia64_ptr_entry(u64 target_mask, int slot); +extern struct ia64_tr_entry *ia64_idtrs[NR_CPUS]; + +/* + region register macros +*/ +#define RR_TO_VE(val) (((val) >> 0) & 0x0000000000000001) +#define RR_VE(val) (((val) & 0x0000000000000001) << 0) +#define RR_VE_MASK 0x0000000000000001L +#define RR_VE_SHIFT 0 +#define RR_TO_PS(val) (((val) >> 2) & 0x000000000000003f) +#define RR_PS(val) (((val) & 0x000000000000003f) << 2) +#define RR_PS_MASK 0x00000000000000fcL +#define RR_PS_SHIFT 2 +#define RR_RID_MASK 0x00000000ffffff00L +#define RR_TO_RID(val) ((val >> 8) & 0xffffff) + /* * Now for some TLB flushing routines. This is the kind of stuff that * can be very expensive, so try to avoid them whenever possible. diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild index 20018cb883a9..62a9522af51e 100644 --- a/arch/ia64/include/uapi/asm/Kbuild +++ b/arch/ia64/include/uapi/asm/Kbuild @@ -1,2 +1 @@ generated-y += unistd_64.h -generic-y += kvm_para.h diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 6d50ede0ed69..bf9c24d9ce84 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -2179,12 +2179,11 @@ static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data) } void ia64_syscall_get_set_arguments(struct task_struct *task, - struct pt_regs *regs, unsigned int i, unsigned int n, - unsigned long *args, int rw) + struct pt_regs *regs, unsigned long *args, int rw) { struct syscall_get_set_args data = { - .i = i, - .n = n, + .i = 0, + .n = 6, .args = args, .regs = regs, .rw = rw, diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 583a3746d70b..c9cfa760cd57 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -1058,9 +1058,7 @@ check_bugs (void) static int __init run_dmi_scan(void) { - dmi_scan_machine(); - dmi_memdev_walk(); - dmi_set_dump_stack_arch_desc(); + dmi_setup(); return 0; } core_initcall(run_dmi_scan); diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl index ab9cda5f6136..56e3d0b685e1 100644 --- a/arch/ia64/kernel/syscalls/syscall.tbl +++ b/arch/ia64/kernel/syscalls/syscall.tbl @@ -344,3 +344,7 @@ 332 common pkey_free sys_pkey_free 333 common rseq sys_rseq # 334 through 423 are reserved to sync up with other architectures +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c index 5fc89aabdce1..5158bd28de05 100644 --- a/arch/ia64/mm/tlb.c +++ b/arch/ia64/mm/tlb.c @@ -305,8 +305,8 @@ local_flush_tlb_all (void) ia64_srlz_i(); /* srlz.i implies srlz.d */ } -void -flush_tlb_range (struct vm_area_struct *vma, unsigned long start, +static void +__flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long end) { struct mm_struct *mm = vma->vm_mm; @@ -343,6 +343,25 @@ flush_tlb_range (struct vm_area_struct *vma, unsigned long start, preempt_enable(); ia64_srlz_i(); /* srlz.i implies srlz.d */ } + +void flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) +{ + if (unlikely(end - start >= 1024*1024*1024*1024UL + || REGION_NUMBER(start) != REGION_NUMBER(end - 1))) { + /* + * If we flush more than a tera-byte or across regions, we're + * probably better off just flushing the entire TLB(s). This + * should be very rare and is not worth optimizing for. + */ + flush_tlb_all(); + } else { + /* flush the address range from the tlb */ + __flush_tlb_range(vma, start, end); + /* flush the virt. page-table area mapping the addr range */ + __flush_tlb_range(vma, ia64_thash(start), ia64_thash(end)); + } +} EXPORT_SYMBOL(flush_tlb_range); void ia64_tlb_init(void) diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c index b73b0ebf8214..b510f4f17fd4 100644 --- a/arch/ia64/sn/kernel/sn2/sn2_smp.c +++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c @@ -120,13 +120,6 @@ void sn_migrate(struct task_struct *task) cpu_relax(); } -void sn_tlb_migrate_finish(struct mm_struct *mm) -{ - /* flush_tlb_mm is inefficient if more than 1 users of mm */ - if (mm == current->mm && mm && atomic_read(&mm->mm_users) == 1) - flush_tlb_mm(mm); -} - static void sn2_ipi_flush_all_tlb(struct mm_struct *mm) { diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index b54206408f91..735b9679fe6f 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -28,17 +28,11 @@ config M68K select OLD_SIGSUSPEND3 select OLD_SIGACTION select ARCH_DISCARD_MEMBLOCK + select MMU_GATHER_NO_RANGE if MMU config CPU_BIG_ENDIAN def_bool y -config RWSEM_GENERIC_SPINLOCK - bool - default y - -config RWSEM_XCHGADD_ALGORITHM - bool - config ARCH_HAS_ILOG2_U32 bool diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index 95f8f631c4df..2c359d9e80f6 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -13,6 +13,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h diff --git a/arch/m68k/include/asm/tlb.h b/arch/m68k/include/asm/tlb.h index b4b9efb6f963..3c81f6adfc8b 100644 --- a/arch/m68k/include/asm/tlb.h +++ b/arch/m68k/include/asm/tlb.h @@ -2,20 +2,6 @@ #ifndef _M68K_TLB_H #define _M68K_TLB_H -/* - * m68k doesn't need any special per-pte or - * per-vma handling.. - */ -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) - -/* - * .. because we flush the whole mm when it - * fills up. - */ -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - #include <asm-generic/tlb.h> #endif /* _M68K_TLB_H */ diff --git a/arch/m68k/include/uapi/asm/Kbuild b/arch/m68k/include/uapi/asm/Kbuild index 8a7ad40be463..7417847dc438 100644 --- a/arch/m68k/include/uapi/asm/Kbuild +++ b/arch/m68k/include/uapi/asm/Kbuild @@ -1,2 +1 @@ generated-y += unistd_32.h -generic-y += kvm_para.h diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl index 125c14178979..df4ec3ec71d1 100644 --- a/arch/m68k/kernel/syscalls/syscall.tbl +++ b/arch/m68k/kernel/syscalls/syscall.tbl @@ -423,3 +423,7 @@ 421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait 422 common futex_time64 sys_futex 423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index a51b965b3b82..adb179f519f9 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -41,6 +41,7 @@ config MICROBLAZE select TRACING_SUPPORT select VIRT_TO_BUS select CPU_NO_EFFICIENT_FFS + select MMU_GATHER_NO_RANGE if MMU # Endianness selection choice @@ -58,15 +59,9 @@ config CPU_LITTLE_ENDIAN endchoice -config RWSEM_GENERIC_SPINLOCK - def_bool y - config ZONE_DMA def_bool y -config RWSEM_XCHGADD_ALGORITHM - bool - config ARCH_HAS_ILOG2_U32 def_bool n diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild index 791cc8d54d0a..1a8285c3f693 100644 --- a/arch/microblaze/include/asm/Kbuild +++ b/arch/microblaze/include/asm/Kbuild @@ -17,6 +17,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += linkage.h generic-y += local.h generic-y += local64.h diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h index 220decd605a4..833d3a53dab3 100644 --- a/arch/microblaze/include/asm/syscall.h +++ b/arch/microblaze/include/asm/syscall.h @@ -82,18 +82,22 @@ static inline void microblaze_set_syscall_arg(struct pt_regs *regs, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { + unsigned int i = 0; + unsigned int n = 6; + while (n--) *args++ = microblaze_get_syscall_arg(regs, i++); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { + unsigned int i = 0; + unsigned int n = 6; + while (n--) microblaze_set_syscall_arg(regs, i++, *args++); } diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h index 99b6ded54849..628a78ee0a72 100644 --- a/arch/microblaze/include/asm/tlb.h +++ b/arch/microblaze/include/asm/tlb.h @@ -11,16 +11,7 @@ #ifndef _ASM_MICROBLAZE_TLB_H #define _ASM_MICROBLAZE_TLB_H -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - #include <linux/pagemap.h> - -#ifdef CONFIG_MMU -#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, address) do { } while (0) -#endif - #include <asm-generic/tlb.h> #endif /* _ASM_MICROBLAZE_TLB_H */ diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild index 3ce84fbb2678..13f59631c576 100644 --- a/arch/microblaze/include/uapi/asm/Kbuild +++ b/arch/microblaze/include/uapi/asm/Kbuild @@ -1,3 +1,2 @@ generated-y += unistd_32.h -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl index 8ee3a8c18498..4964947732af 100644 --- a/arch/microblaze/kernel/syscalls/syscall.tbl +++ b/arch/microblaze/kernel/syscalls/syscall.tbl @@ -429,3 +429,7 @@ 421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait 422 common futex_time64 sys_futex 423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 4a5f5b0ee9a9..b9c48b27162d 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1037,13 +1037,6 @@ source "arch/mips/paravirt/Kconfig" endmenu -config RWSEM_GENERIC_SPINLOCK - bool - default y - -config RWSEM_XCHGADD_ALGORITHM - bool - config GENERIC_HWEIGHT bool default y diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c index 4a70c5de8c92..25a57895a3a3 100644 --- a/arch/mips/ath79/setup.c +++ b/arch/mips/ath79/setup.c @@ -210,12 +210,6 @@ const char *get_system_type(void) return ath79_sys_type; } -int get_c0_perfcount_int(void) -{ - return ATH79_MISC_IRQ(5); -} -EXPORT_SYMBOL_GPL(get_c0_perfcount_int); - unsigned int get_c0_compare_int(void) { return CP0_LEGACY_COMPARE_IRQ; diff --git a/arch/mips/bcm47xx/workarounds.c b/arch/mips/bcm47xx/workarounds.c index 46eddbec8d9f..0ab95dd431b3 100644 --- a/arch/mips/bcm47xx/workarounds.c +++ b/arch/mips/bcm47xx/workarounds.c @@ -24,6 +24,7 @@ void __init bcm47xx_workarounds(void) case BCM47XX_BOARD_NETGEAR_WNR3500L: bcm47xx_workarounds_enable_usb_power(12); break; + case BCM47XX_BOARD_NETGEAR_WNDR3400V2: case BCM47XX_BOARD_NETGEAR_WNDR3400_V3: bcm47xx_workarounds_enable_usb_power(21); break; diff --git a/arch/mips/configs/generic/board-ocelot.config b/arch/mips/configs/generic/board-ocelot.config index f607888d2483..184eb65a6ba7 100644 --- a/arch/mips/configs/generic/board-ocelot.config +++ b/arch/mips/configs/generic/board-ocelot.config @@ -1,6 +1,10 @@ # require CONFIG_CPU_MIPS32_R2=y CONFIG_LEGACY_BOARD_OCELOT=y +CONFIG_FIT_IMAGE_FDT_OCELOT=y + +CONFIG_BRIDGE=y +CONFIG_GENERIC_PHY=y CONFIG_MTD=y CONFIG_MTD_CMDLINE_PARTS=y @@ -19,6 +23,8 @@ CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_OF_PLATFORM=y CONFIG_NETDEVICES=y +CONFIG_NET_SWITCHDEV=y +CONFIG_NET_DSA=y CONFIG_MSCC_OCELOT_SWITCH=y CONFIG_MSCC_OCELOT_SWITCH_OCELOT=y CONFIG_MDIO_MSCC_MIIM=y @@ -35,6 +41,8 @@ CONFIG_SPI_DESIGNWARE=y CONFIG_SPI_DW_MMIO=y CONFIG_SPI_SPIDEV=y +CONFIG_PINCTRL_OCELOT=y + CONFIG_GPIO_SYSFS=y CONFIG_POWER_RESET=y diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h index e77672539e8e..e4456e450f94 100644 --- a/arch/mips/include/asm/jump_label.h +++ b/arch/mips/include/asm/jump_label.h @@ -21,15 +21,15 @@ #endif #ifdef CONFIG_CPU_MICROMIPS -#define NOP_INSN "nop32" +#define B_INSN "b32" #else -#define NOP_INSN "nop" +#define B_INSN "b" #endif static __always_inline bool arch_static_branch(struct static_key *key, bool branch) { - asm_volatile_goto("1:\t" NOP_INSN "\n\t" - "nop\n\t" + asm_volatile_goto("1:\t" B_INSN " 2f\n\t" + "2:\tnop\n\t" ".pushsection __jump_table, \"aw\"\n\t" WORD_INSN " 1b, %l[l_yes], %0\n\t" ".popsection\n\t" diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h index 6cf8ffb5367e..a2b4748655df 100644 --- a/arch/mips/include/asm/syscall.h +++ b/arch/mips/include/asm/syscall.h @@ -116,9 +116,10 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { + unsigned int i = 0; + unsigned int n = 6; int ret; /* O32 ABI syscall() */ diff --git a/arch/mips/include/asm/tlb.h b/arch/mips/include/asm/tlb.h index b6823b9e94da..90f3ad76d9e0 100644 --- a/arch/mips/include/asm/tlb.h +++ b/arch/mips/include/asm/tlb.h @@ -5,23 +5,6 @@ #include <asm/cpu-features.h> #include <asm/mipsregs.h> -/* - * MIPS doesn't need any special per-pte or per-vma handling, except - * we need to flush cache for area to be unmapped. - */ -#define tlb_start_vma(tlb, vma) \ - do { \ - if (!tlb->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ - } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) - -/* - * .. because we flush the whole mm when it fills up. - */ -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - #define _UNIQUE_ENTRYHI(base, idx) \ (((base) + ((idx) << (PAGE_SHIFT + 1))) | \ (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0)) diff --git a/arch/mips/include/uapi/asm/posix_types.h b/arch/mips/include/uapi/asm/posix_types.h index 6aa49c10f88f..f0ccb5b90ce9 100644 --- a/arch/mips/include/uapi/asm/posix_types.h +++ b/arch/mips/include/uapi/asm/posix_types.h @@ -21,13 +21,6 @@ typedef long __kernel_daddr_t; #define __kernel_daddr_t __kernel_daddr_t -#if (_MIPS_SZLONG == 32) -typedef struct { - long val[2]; -} __kernel_fsid_t; -#define __kernel_fsid_t __kernel_fsid_t -#endif - #include <asm-generic/posix_types.h> #endif /* _ASM_POSIX_TYPES_H */ diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c index 6e574c02e4c3..ea781b29f7f1 100644 --- a/arch/mips/kernel/kgdb.c +++ b/arch/mips/kernel/kgdb.c @@ -33,6 +33,7 @@ #include <asm/processor.h> #include <asm/sigcontext.h> #include <linux/uaccess.h> +#include <asm/irq_regs.h> static struct hard_trap_info { unsigned char tt; /* Trap type code for MIPS R3xxx and R4xxx */ @@ -214,7 +215,7 @@ void kgdb_call_nmi_hook(void *ignored) old_fs = get_fs(); set_fs(KERNEL_DS); - kgdb_nmicallback(raw_smp_processor_id(), NULL); + kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs()); set_fs(old_fs); } diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 0057c910bc2f..3a62f80958e1 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -1419,7 +1419,7 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall) sd.nr = syscall; sd.arch = syscall_get_arch(); - syscall_get_arguments(current, regs, 0, 6, args); + syscall_get_arguments(current, regs, args); for (i = 0; i < 6; i++) sd.args[i] = args[i]; sd.instruction_pointer = KSTK_EIP(current); diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index f158c5894a9a..feb2653490df 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -125,7 +125,7 @@ trace_a_syscall: subu t1, v0, __NR_O32_Linux move a1, v0 bnez t1, 1f /* __NR_syscall at offset 0 */ - lw a1, PT_R4(sp) /* Arg1 for __NR_syscall case */ + ld a1, PT_R4(sp) /* Arg1 for __NR_syscall case */ .set pop 1: jal syscall_trace_enter diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index 15f4117900ee..9392dfe33f97 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -362,3 +362,7 @@ 421 n32 rt_sigtimedwait_time64 compat_sys_rt_sigtimedwait_time64 422 n32 futex_time64 sys_futex 423 n32 sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 n32 pidfd_send_signal sys_pidfd_send_signal +425 n32 io_uring_setup sys_io_uring_setup +426 n32 io_uring_enter sys_io_uring_enter +427 n32 io_uring_register sys_io_uring_register diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl index c85502e67b44..cd0c8aa21fba 100644 --- a/arch/mips/kernel/syscalls/syscall_n64.tbl +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl @@ -338,3 +338,7 @@ 327 n64 rseq sys_rseq 328 n64 io_pgetevents sys_io_pgetevents # 329 through 423 are reserved to sync up with other architectures +424 n64 pidfd_send_signal sys_pidfd_send_signal +425 n64 io_uring_setup sys_io_uring_setup +426 n64 io_uring_enter sys_io_uring_enter +427 n64 io_uring_register sys_io_uring_register diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 2e063d0f837e..e849e8ffe4a2 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -411,3 +411,7 @@ 421 o32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 422 o32 futex_time64 sys_futex sys_futex 423 o32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval +424 o32 pidfd_send_signal sys_pidfd_send_signal +425 o32 io_uring_setup sys_io_uring_setup +426 o32 io_uring_enter sys_io_uring_enter +427 o32 io_uring_register sys_io_uring_register diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index cb7e9ed7a453..33ee0d18fb0a 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -140,6 +140,13 @@ SECTIONS PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT) #endif +#ifdef CONFIG_MIPS_ELF_APPENDED_DTB + .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { + *(.appended_dtb) + KEEP(*(.appended_dtb)) + } +#endif + #ifdef CONFIG_RELOCATABLE . = ALIGN(4); @@ -164,11 +171,6 @@ SECTIONS __appended_dtb = .; /* leave space for appended DTB */ . += 0x100000; -#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB) - .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { - *(.appended_dtb) - KEEP(*(.appended_dtb)) - } #endif /* * Align to 64K in attempt to eliminate holes before the diff --git a/arch/mips/loongson64/lemote-2f/irq.c b/arch/mips/loongson64/lemote-2f/irq.c index 9e33e45aa17c..b213cecb8e3a 100644 --- a/arch/mips/loongson64/lemote-2f/irq.c +++ b/arch/mips/loongson64/lemote-2f/irq.c @@ -103,7 +103,7 @@ static struct irqaction ip6_irqaction = { static struct irqaction cascade_irqaction = { .handler = no_action, .name = "cascade", - .flags = IRQF_NO_THREAD, + .flags = IRQF_NO_THREAD | IRQF_NO_SUSPEND, }; void __init mach_init_irq(void) diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c index 0effd3cba9a7..98bf0c222b5f 100644 --- a/arch/mips/net/ebpf_jit.c +++ b/arch/mips/net/ebpf_jit.c @@ -186,8 +186,9 @@ enum which_ebpf_reg { * separate frame pointer, so BPF_REG_10 relative accesses are * adjusted to be $sp relative. */ -int ebpf_to_mips_reg(struct jit_ctx *ctx, const struct bpf_insn *insn, - enum which_ebpf_reg w) +static int ebpf_to_mips_reg(struct jit_ctx *ctx, + const struct bpf_insn *insn, + enum which_ebpf_reg w) { int ebpf_reg = (w == src_reg || w == src_reg_no_fp) ? insn->src_reg : insn->dst_reg; diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 710a59764b01..a32f843cdbe0 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -118,7 +118,6 @@ static void shutdown_bridge_irq(struct irq_data *d) { struct hub_irq_data *hd = irq_data_get_irq_chip_data(d); struct bridge_controller *bc; - int pin = hd->pin; if (!hd) return; @@ -126,7 +125,7 @@ static void shutdown_bridge_irq(struct irq_data *d) disable_hub_irq(d); bc = hd->bc; - bridge_clr(bc, b_int_enable, (1 << pin)); + bridge_clr(bc, b_int_enable, (1 << hd->pin)); bridge_read(bc, b_wid_tflush); } diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig index addb7f5f5264..55559ca0efe4 100644 --- a/arch/nds32/Kconfig +++ b/arch/nds32/Kconfig @@ -60,9 +60,6 @@ config GENERIC_LOCKBREAK def_bool y depends on PREEMPT -config RWSEM_GENERIC_SPINLOCK - def_bool y - config TRACE_IRQFLAGS_SUPPORT def_bool y diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h index f7e5e86765fe..671ebd357496 100644 --- a/arch/nds32/include/asm/syscall.h +++ b/arch/nds32/include/asm/syscall.h @@ -108,81 +108,41 @@ void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, * syscall_get_arguments - extract system call parameter values * @task: task of interest, must be blocked * @regs: task_pt_regs() of @task - * @i: argument index [0,5] - * @n: number of arguments; n+i must be [1,6]. * @args: array filled with argument values * - * Fetches @n arguments to the system call starting with the @i'th argument - * (from 0 through 5). Argument @i is stored in @args[0], and so on. - * An arch inline version is probably optimal when @i and @n are constants. + * Fetches 6 arguments to the system call (from 0 through 5). The first + * argument is stored in @args[0], and so on. * * It's only valid to call this when @task is stopped for tracing on * entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT. - * It's invalid to call this with @i + @n > 6; we only support system calls - * taking up to 6 arguments. */ #define SYSCALL_MAX_ARGS 6 void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) + unsigned long *args) { - if (n == 0) - return; - if (i + n > SYSCALL_MAX_ARGS) { - unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; - unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - memset(args_bad, 0, n_bad * sizeof(args[0])); - memset(args_bad, 0, n_bad * sizeof(args[0])); - } - - if (i == 0) { - args[0] = regs->orig_r0; - args++; - i++; - n--; - } - - memcpy(args, ®s->uregs[0] + i, n * sizeof(args[0])); + args[0] = regs->orig_r0; + args++; + memcpy(args, ®s->uregs[0] + 1, 5 * sizeof(args[0])); } /** * syscall_set_arguments - change system call parameter value * @task: task of interest, must be in system call entry tracing * @regs: task_pt_regs() of @task - * @i: argument index [0,5] - * @n: number of arguments; n+i must be [1,6]. * @args: array of argument values to store * - * Changes @n arguments to the system call starting with the @i'th argument. - * Argument @i gets value @args[0], and so on. - * An arch inline version is probably optimal when @i and @n are constants. + * Changes 6 arguments to the system call. The first argument gets value + * @args[0], and so on. * * It's only valid to call this when @task is stopped for tracing on * entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT. - * It's invalid to call this with @i + @n > 6; we only support system calls - * taking up to 6 arguments. */ void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - pr_warn("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - n = SYSCALL_MAX_ARGS - i; - } - - if (i == 0) { - regs->orig_r0 = args[0]; - args++; - i++; - n--; - } + regs->orig_r0 = args[0]; + args++; - memcpy(®s->uregs[0] + i, args, n * sizeof(args[0])); + memcpy(®s->uregs[0] + 1, args, 5 * sizeof(args[0])); } #endif /* _ASM_NDS32_SYSCALL_H */ diff --git a/arch/nds32/include/asm/tlb.h b/arch/nds32/include/asm/tlb.h index b35ae5eae3ab..d5ae571c8d30 100644 --- a/arch/nds32/include/asm/tlb.h +++ b/arch/nds32/include/asm/tlb.h @@ -4,22 +4,6 @@ #ifndef __ASMNDS32_TLB_H #define __ASMNDS32_TLB_H -#define tlb_start_vma(tlb,vma) \ - do { \ - if (!tlb->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ - } while (0) - -#define tlb_end_vma(tlb,vma) \ - do { \ - if(!tlb->fullmm) \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ - } 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, addr) pte_free((tlb)->mm, pte) diff --git a/arch/nds32/include/asm/tlbflush.h b/arch/nds32/include/asm/tlbflush.h index 9b411f401903..38ee769b18d8 100644 --- a/arch/nds32/include/asm/tlbflush.h +++ b/arch/nds32/include/asm/tlbflush.h @@ -42,6 +42,5 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t * pte); -void tlb_migrate_finish(struct mm_struct *mm); #endif diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig index 4ef15a61b7bc..ea37394ff3ea 100644 --- a/arch/nios2/Kconfig +++ b/arch/nios2/Kconfig @@ -24,6 +24,7 @@ config NIOS2 select USB_ARCH_HAS_HCD if USB_SUPPORT select CPU_NO_EFFICIENT_FFS select ARCH_DISCARD_MEMBLOCK + select MMU_GATHER_NO_RANGE if MMU config GENERIC_CSUM def_bool y @@ -40,9 +41,6 @@ config NO_IOPORT_MAP config FPU def_bool n -config RWSEM_GENERIC_SPINLOCK - def_bool y - config TRACE_IRQFLAGS_SUPPORT def_bool n diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild index 8fde4fa2c34f..88a667d12aaa 100644 --- a/arch/nios2/include/asm/Kbuild +++ b/arch/nios2/include/asm/Kbuild @@ -23,6 +23,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h diff --git a/arch/nios2/include/asm/syscall.h b/arch/nios2/include/asm/syscall.h index 9de220854c4a..d7624ed06efb 100644 --- a/arch/nios2/include/asm/syscall.h +++ b/arch/nios2/include/asm/syscall.h @@ -58,81 +58,25 @@ static inline void syscall_set_return_value(struct task_struct *task, } static inline void syscall_get_arguments(struct task_struct *task, - struct pt_regs *regs, unsigned int i, unsigned int n, - unsigned long *args) + struct pt_regs *regs, unsigned long *args) { - BUG_ON(i + n > 6); - - switch (i) { - case 0: - if (!n--) - break; - *args++ = regs->r4; - case 1: - if (!n--) - break; - *args++ = regs->r5; - case 2: - if (!n--) - break; - *args++ = regs->r6; - case 3: - if (!n--) - break; - *args++ = regs->r7; - case 4: - if (!n--) - break; - *args++ = regs->r8; - case 5: - if (!n--) - break; - *args++ = regs->r9; - case 6: - if (!n--) - break; - default: - BUG(); - } + *args++ = regs->r4; + *args++ = regs->r5; + *args++ = regs->r6; + *args++ = regs->r7; + *args++ = regs->r8; + *args = regs->r9; } static inline void syscall_set_arguments(struct task_struct *task, - struct pt_regs *regs, unsigned int i, unsigned int n, - const unsigned long *args) + struct pt_regs *regs, const unsigned long *args) { - BUG_ON(i + n > 6); - - switch (i) { - case 0: - if (!n--) - break; - regs->r4 = *args++; - case 1: - if (!n--) - break; - regs->r5 = *args++; - case 2: - if (!n--) - break; - regs->r6 = *args++; - case 3: - if (!n--) - break; - regs->r7 = *args++; - case 4: - if (!n--) - break; - regs->r8 = *args++; - case 5: - if (!n--) - break; - regs->r9 = *args++; - case 6: - if (!n) - break; - default: - BUG(); - } + regs->r4 = *args++; + regs->r5 = *args++; + regs->r6 = *args++; + regs->r7 = *args++; + regs->r8 = *args++; + regs->r9 = *args; } #endif diff --git a/arch/nios2/include/asm/tlb.h b/arch/nios2/include/asm/tlb.h index d3bc648e08b5..f9f2e27e32dd 100644 --- a/arch/nios2/include/asm/tlb.h +++ b/arch/nios2/include/asm/tlb.h @@ -11,22 +11,12 @@ #ifndef _ASM_NIOS2_TLB_H #define _ASM_NIOS2_TLB_H -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - extern void set_mmu_pid(unsigned long pid); /* - * NiosII doesn't need any special per-pte or per-vma handling, except - * we need to flush cache for the area to be unmapped. + * NIOS32 does have flush_tlb_range(), but it lacks a limit and fallback to + * full mm invalidation. So use flush_tlb_mm() for everything. */ -#define tlb_start_vma(tlb, vma) \ - do { \ - if (!tlb->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ - } while (0) - -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) #include <linux/pagemap.h> #include <asm-generic/tlb.h> diff --git a/arch/nios2/include/uapi/asm/Kbuild b/arch/nios2/include/uapi/asm/Kbuild index 755bb11323d8..1c72f04ff75d 100644 --- a/arch/nios2/include/uapi/asm/Kbuild +++ b/arch/nios2/include/uapi/asm/Kbuild @@ -1,2 +1 @@ -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index a5e361fbb75a..7cfb20555b10 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -36,6 +36,7 @@ config OPENRISC select OMPIC if SMP select ARCH_WANT_FRAME_POINTERS select GENERIC_IRQ_MULTI_HANDLER + select MMU_GATHER_NO_RANGE if MMU config CPU_BIG_ENDIAN def_bool y @@ -43,12 +44,6 @@ config CPU_BIG_ENDIAN config MMU def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool y - -config RWSEM_XCHGADD_ALGORITHM - def_bool n - config GENERIC_HWEIGHT def_bool y diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index 5a73e2956ac4..22aa97136c01 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -20,6 +20,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h index 2db9f1cf0694..b4ff07c1baed 100644 --- a/arch/openrisc/include/asm/syscall.h +++ b/arch/openrisc/include/asm/syscall.h @@ -56,20 +56,16 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) + unsigned long *args) { - BUG_ON(i + n > 6); - - memcpy(args, ®s->gpr[3 + i], n * sizeof(args[0])); + memcpy(args, ®s->gpr[3], 6 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) + const unsigned long *args) { - BUG_ON(i + n > 6); - - memcpy(®s->gpr[3 + i], args, n * sizeof(args[0])); + memcpy(®s->gpr[3], args, 6 * sizeof(args[0])); } static inline int syscall_get_arch(void) diff --git a/arch/openrisc/include/asm/tlb.h b/arch/openrisc/include/asm/tlb.h index fa4376a4515d..92d8a4209884 100644 --- a/arch/openrisc/include/asm/tlb.h +++ b/arch/openrisc/include/asm/tlb.h @@ -20,14 +20,10 @@ #define __ASM_OPENRISC_TLB_H__ /* - * or32 doesn't need any special per-pte or - * per-vma handling.. + * OpenRISC doesn't have an efficient flush_tlb_range() so use flush_tlb_mm() + * for everything. */ -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) #include <linux/pagemap.h> #include <asm-generic/tlb.h> diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild index 755bb11323d8..1c72f04ff75d 100644 --- a/arch/openrisc/include/uapi/asm/Kbuild +++ b/arch/openrisc/include/uapi/asm/Kbuild @@ -1,2 +1 @@ -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index c8e621296092..f1ed8ddfe486 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -75,12 +75,6 @@ config GENERIC_LOCKBREAK default y depends on SMP && PREEMPT -config RWSEM_GENERIC_SPINLOCK - def_bool y - -config RWSEM_XCHGADD_ALGORITHM - bool - config ARCH_HAS_ILOG2_U32 bool default n diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild index 6f49e77d82a2..9bcd0c903dbb 100644 --- a/arch/parisc/include/asm/Kbuild +++ b/arch/parisc/include/asm/Kbuild @@ -11,6 +11,7 @@ generic-y += irq_regs.h generic-y += irq_work.h generic-y += kdebug.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h index 2a27b275ab09..9ff033d261ab 100644 --- a/arch/parisc/include/asm/ptrace.h +++ b/arch/parisc/include/asm/ptrace.h @@ -22,13 +22,14 @@ unsigned long profile_pc(struct pt_regs *); static inline unsigned long regs_return_value(struct pt_regs *regs) { - return regs->gr[20]; + return regs->gr[28]; } static inline void instruction_pointer_set(struct pt_regs *regs, unsigned long val) { - regs->iaoq[0] = val; + regs->iaoq[0] = val; + regs->iaoq[1] = val + 4; } /* Query offset/name of register from its name/offset */ diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h index 8bff1a58c97f..62a6d477fae0 100644 --- a/arch/parisc/include/asm/syscall.h +++ b/arch/parisc/include/asm/syscall.h @@ -18,29 +18,15 @@ static inline long syscall_get_nr(struct task_struct *tsk, } static inline void syscall_get_arguments(struct task_struct *tsk, - struct pt_regs *regs, unsigned int i, - unsigned int n, unsigned long *args) + struct pt_regs *regs, + unsigned long *args) { - BUG_ON(i); - - switch (n) { - case 6: - args[5] = regs->gr[21]; - case 5: - args[4] = regs->gr[22]; - case 4: - args[3] = regs->gr[23]; - case 3: - args[2] = regs->gr[24]; - case 2: - args[1] = regs->gr[25]; - case 1: - args[0] = regs->gr[26]; - case 0: - break; - default: - BUG(); - } + args[5] = regs->gr[21]; + args[4] = regs->gr[22]; + args[3] = regs->gr[23]; + args[2] = regs->gr[24]; + args[1] = regs->gr[25]; + args[0] = regs->gr[26]; } static inline long syscall_get_return_value(struct task_struct *task, diff --git a/arch/parisc/include/asm/tlb.h b/arch/parisc/include/asm/tlb.h index 0c881e74d8a6..8c0446b04c9e 100644 --- a/arch/parisc/include/asm/tlb.h +++ b/arch/parisc/include/asm/tlb.h @@ -2,24 +2,6 @@ #ifndef _PARISC_TLB_H #define _PARISC_TLB_H -#define tlb_flush(tlb) \ -do { if ((tlb)->fullmm) \ - flush_tlb_mm((tlb)->mm);\ -} while (0) - -#define tlb_start_vma(tlb, vma) \ -do { if (!(tlb)->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define tlb_end_vma(tlb, vma) \ -do { if (!(tlb)->fullmm) \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define __tlb_remove_tlb_entry(tlb, pte, address) \ - do { } while (0) - #include <asm-generic/tlb.h> #define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd) diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild index 22fdbd08cdc8..2bd5b392277c 100644 --- a/arch/parisc/include/uapi/asm/Kbuild +++ b/arch/parisc/include/uapi/asm/Kbuild @@ -1,3 +1,2 @@ generated-y += unistd_32.h generated-y += unistd_64.h -generic-y += kvm_para.h diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c index eb39e7e380d7..841db71958cd 100644 --- a/arch/parisc/kernel/process.c +++ b/arch/parisc/kernel/process.c @@ -210,12 +210,6 @@ void __cpuidle arch_cpu_idle(void) static int __init parisc_idle_init(void) { - const char *marker; - - /* check QEMU/SeaBIOS marker in PAGE0 */ - marker = (char *) &PAGE0->pad0; - running_on_qemu = (memcmp(marker, "SeaBIOS", 8) == 0); - if (!running_on_qemu) cpu_idle_poll_ctrl(1); diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c index 15dd9e21be7e..d908058d05c1 100644 --- a/arch/parisc/kernel/setup.c +++ b/arch/parisc/kernel/setup.c @@ -397,6 +397,9 @@ void __init start_parisc(void) int ret, cpunum; struct pdc_coproc_cfg coproc_cfg; + /* check QEMU/SeaBIOS marker in PAGE0 */ + running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0); + cpunum = smp_processor_id(); init_cpu_topology(); diff --git a/arch/parisc/kernel/stacktrace.c b/arch/parisc/kernel/stacktrace.c index ec5835e83a7a..6f0b9c8d8052 100644 --- a/arch/parisc/kernel/stacktrace.c +++ b/arch/parisc/kernel/stacktrace.c @@ -29,22 +29,17 @@ static void dump_trace(struct task_struct *task, struct stack_trace *trace) } } - /* * Save stack-backtrace addresses into a stack_trace buffer. */ void save_stack_trace(struct stack_trace *trace) { dump_trace(current, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace); void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) { dump_trace(tsk, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace_tsk); diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index b26766c6647d..fe8ca623add8 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -420,3 +420,7 @@ 421 32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 422 32 futex_time64 sys_futex sys_futex 423 32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 2d0be82c3061..88a4fb3647a2 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -103,13 +103,6 @@ config LOCKDEP_SUPPORT bool default y -config RWSEM_GENERIC_SPINLOCK - bool - -config RWSEM_XCHGADD_ALGORITHM - bool - default y - config GENERIC_LOCKBREAK bool default y @@ -218,6 +211,8 @@ config PPC select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP select HAVE_RCU_TABLE_FREE if SMP + select HAVE_RCU_TABLE_NO_INVALIDATE if HAVE_RCU_TABLE_FREE + select HAVE_MMU_GATHER_PAGE_SIZE select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RELIABLE_STACKTRACE if PPC_BOOK3S_64 && CPU_LITTLE_ENDIAN select HAVE_SYSCALL_TRACEPOINTS @@ -318,6 +313,10 @@ config ARCH_SUSPEND_POSSIBLE (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ || 44x || 40x +config ARCH_SUSPEND_NONZERO_CPU + def_bool y + depends on PPC_POWERNV || PPC_PSERIES + config PPC_DCR_NATIVE bool diff --git a/arch/powerpc/configs/skiroot_defconfig b/arch/powerpc/configs/skiroot_defconfig index 5ba131c30f6b..1bcd468ab422 100644 --- a/arch/powerpc/configs/skiroot_defconfig +++ b/arch/powerpc/configs/skiroot_defconfig @@ -266,6 +266,7 @@ CONFIG_UDF_FS=m CONFIG_MSDOS_FS=m CONFIG_VFAT_FS=m CONFIG_PROC_KCORE=y +CONFIG_HUGETLBFS=y # CONFIG_MISC_FILESYSTEMS is not set # CONFIG_NETWORK_FILESYSTEMS is not set CONFIG_NLS=y diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild index a0c132bedfae..36bda391e549 100644 --- a/arch/powerpc/include/asm/Kbuild +++ b/arch/powerpc/include/asm/Kbuild @@ -8,6 +8,5 @@ generic-y += irq_regs.h generic-y += local64.h generic-y += mcs_spinlock.h generic-y += preempt.h -generic-y += rwsem.h generic-y += vtime.h generic-y += msi.h diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index d34ad1657d7b..8ddd4a91bdc1 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -352,7 +352,7 @@ static inline bool strict_kernel_rwx_enabled(void) #if defined(CONFIG_SPARSEMEM_VMEMMAP) && defined(CONFIG_SPARSEMEM_EXTREME) && \ defined (CONFIG_PPC_64K_PAGES) #define MAX_PHYSMEM_BITS 51 -#else +#elif defined(CONFIG_PPC64) #define MAX_PHYSMEM_BITS 46 #endif diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index c5698a523bb1..23f7ed796f38 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -302,6 +302,7 @@ /* Misc instructions for BPF compiler */ #define PPC_INST_LBZ 0x88000000 #define PPC_INST_LD 0xe8000000 +#define PPC_INST_LDX 0x7c00002a #define PPC_INST_LHZ 0xa0000000 #define PPC_INST_LWZ 0x80000000 #define PPC_INST_LHBRX 0x7c00062c @@ -309,6 +310,7 @@ #define PPC_INST_STB 0x98000000 #define PPC_INST_STH 0xb0000000 #define PPC_INST_STD 0xf8000000 +#define PPC_INST_STDX 0x7c00012a #define PPC_INST_STDU 0xf8000001 #define PPC_INST_STW 0x90000000 #define PPC_INST_STWU 0x94000000 diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h index 1a0e7a8b1c81..1243045bad2d 100644 --- a/arch/powerpc/include/asm/syscall.h +++ b/arch/powerpc/include/asm/syscall.h @@ -65,22 +65,20 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { unsigned long val, mask = -1UL; - - BUG_ON(i + n > 6); + unsigned int n = 6; #ifdef CONFIG_COMPAT if (test_tsk_thread_flag(task, TIF_32BIT)) mask = 0xffffffff; #endif while (n--) { - if (n == 0 && i == 0) + if (n == 0) val = regs->orig_gpr3; else - val = regs->gpr[3 + i + n]; + val = regs->gpr[3 + n]; args[n] = val & mask; } @@ -88,15 +86,12 @@ static inline void syscall_get_arguments(struct task_struct *task, static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - BUG_ON(i + n > 6); - memcpy(®s->gpr[3 + i], args, n * sizeof(args[0])); + memcpy(®s->gpr[3], args, 6 * sizeof(args[0])); /* Also copy the first argument into orig_gpr3 */ - if (i == 0 && n > 0) - regs->orig_gpr3 = args[0]; + regs->orig_gpr3 = args[0]; } static inline int syscall_get_arch(void) diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index e24c67d5ba75..34fba1ce27f7 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -27,8 +27,8 @@ #define tlb_start_vma(tlb, vma) do { } while (0) #define tlb_end_vma(tlb, vma) do { } while (0) #define __tlb_remove_tlb_entry __tlb_remove_tlb_entry -#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change +#define tlb_flush tlb_flush extern void tlb_flush(struct mmu_gather *tlb); /* Get the generic bits... */ @@ -46,22 +46,6 @@ static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, #endif } -static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, - unsigned int page_size) -{ - if (!tlb->page_size) - tlb->page_size = page_size; - else if (tlb->page_size != page_size) { - if (!tlb->fullmm) - tlb_flush_mmu(tlb); - /* - * update the page size after flush for the new - * mmu_gather. - */ - tlb->page_size = page_size; - } -} - #ifdef CONFIG_SMP static inline int mm_is_core_local(struct mm_struct *mm) { diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h index 1afe90ade595..bbc06bd72b1f 100644 --- a/arch/powerpc/include/asm/vdso_datapage.h +++ b/arch/powerpc/include/asm/vdso_datapage.h @@ -82,10 +82,10 @@ struct vdso_data { __u32 icache_block_size; /* L1 i-cache block size */ __u32 dcache_log_block_size; /* L1 d-cache log block size */ __u32 icache_log_block_size; /* L1 i-cache log block size */ - __s32 wtom_clock_sec; /* Wall to monotonic clock */ - __s32 wtom_clock_nsec; - struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */ - __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */ + __u32 stamp_sec_fraction; /* fractional seconds of stamp_xtime */ + __s32 wtom_clock_nsec; /* Wall to monotonic clock nsec */ + __s64 wtom_clock_sec; /* Wall to monotonic clock sec */ + struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */ __u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */ }; diff --git a/arch/powerpc/kernel/cpu_setup_6xx.S b/arch/powerpc/kernel/cpu_setup_6xx.S index 6f1c11e0691f..7534ecff5e92 100644 --- a/arch/powerpc/kernel/cpu_setup_6xx.S +++ b/arch/powerpc/kernel/cpu_setup_6xx.S @@ -24,9 +24,6 @@ BEGIN_MMU_FTR_SECTION li r10,0 mtspr SPRN_SPRG_603_LRU,r10 /* init SW LRU tracking */ END_MMU_FTR_SECTION_IFSET(MMU_FTR_NEED_DTLB_SW_LRU) - lis r10, (swapper_pg_dir - PAGE_OFFSET)@h - ori r10, r10, (swapper_pg_dir - PAGE_OFFSET)@l - mtspr SPRN_SPRG_PGDIR, r10 BEGIN_FTR_SECTION bl __init_fpu_registers diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index a5b8fbae56a0..9481a117e242 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -656,11 +656,17 @@ EXC_COMMON_BEGIN(data_access_slb_common) ld r4,PACA_EXSLB+EX_DAR(r13) std r4,_DAR(r1) addi r3,r1,STACK_FRAME_OVERHEAD +BEGIN_MMU_FTR_SECTION + /* HPT case, do SLB fault */ bl do_slb_fault cmpdi r3,0 bne- 1f b fast_exception_return 1: /* Error case */ +MMU_FTR_SECTION_ELSE + /* Radix case, access is outside page table range */ + li r3,-EFAULT +ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX) std r3,RESULT(r1) bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) @@ -705,11 +711,17 @@ EXC_COMMON_BEGIN(instruction_access_slb_common) EXCEPTION_PROLOG_COMMON(0x480, PACA_EXSLB) ld r4,_NIP(r1) addi r3,r1,STACK_FRAME_OVERHEAD +BEGIN_MMU_FTR_SECTION + /* HPT case, do SLB fault */ bl do_slb_fault cmpdi r3,0 bne- 1f b fast_exception_return 1: /* Error case */ +MMU_FTR_SECTION_ELSE + /* Radix case, access is outside page table range */ + li r3,-EFAULT +ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX) std r3,RESULT(r1) bl save_nvgprs RECONCILE_IRQ_STATE(r10, r11) diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index ce6a972f2584..e25b615e9f9e 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -851,10 +851,9 @@ __secondary_start: tophys(r4,r2) addi r4,r4,THREAD /* phys address of our thread_struct */ mtspr SPRN_SPRG_THREAD,r4 -#ifdef CONFIG_PPC_RTAS - li r3,0 - stw r3, RTAS_SP(r4) /* 0 => not in RTAS */ -#endif + lis r4, (swapper_pg_dir - PAGE_OFFSET)@h + ori r4, r4, (swapper_pg_dir - PAGE_OFFSET)@l + mtspr SPRN_SPRG_PGDIR, r4 /* enable MMU and jump to start_secondary */ li r4,MSR_KERNEL @@ -938,10 +937,9 @@ start_here: tophys(r4,r2) addi r4,r4,THREAD /* init task's THREAD */ mtspr SPRN_SPRG_THREAD,r4 -#ifdef CONFIG_PPC_RTAS - li r3,0 - stw r3, RTAS_SP(r4) /* 0 => not in RTAS */ -#endif + lis r4, (swapper_pg_dir - PAGE_OFFSET)@h + ori r4, r4, (swapper_pg_dir - PAGE_OFFSET)@l + mtspr SPRN_SPRG_PGDIR, r4 /* stack */ lis r1,init_thread_union@ha diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 683b5b3805bd..cd381e2291df 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -22,6 +22,7 @@ #include <linux/kvm_host.h> #include <linux/init.h> #include <linux/export.h> +#include <linux/kmemleak.h> #include <linux/kvm_para.h> #include <linux/slab.h> #include <linux/of.h> @@ -712,6 +713,12 @@ static void kvm_use_magic_page(void) static __init void kvm_free_tmp(void) { + /* + * Inform kmemleak about the hole in the .bss section since the + * corresponding pages will be unmapped with DEBUG_PAGEALLOC=y. + */ + kmemleak_free_part(&kvm_tmp[kvm_tmp_index], + ARRAY_SIZE(kvm_tmp) - kvm_tmp_index); free_reserved_area(&kvm_tmp[kvm_tmp_index], &kvm_tmp[ARRAY_SIZE(kvm_tmp)], -1, NULL); } diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c index 9b8631533e02..70568ccbd9fd 100644 --- a/arch/powerpc/kernel/security.c +++ b/arch/powerpc/kernel/security.c @@ -57,7 +57,7 @@ void setup_barrier_nospec(void) enable = security_ftr_enabled(SEC_FTR_FAVOUR_SECURITY) && security_ftr_enabled(SEC_FTR_BNDS_CHK_SPEC_BAR); - if (!no_nospec) + if (!no_nospec && !cpu_mitigations_off()) enable_barrier_nospec(enable); } @@ -116,7 +116,7 @@ static int __init handle_nospectre_v2(char *p) early_param("nospectre_v2", handle_nospectre_v2); void setup_spectre_v2(void) { - if (no_spectrev2) + if (no_spectrev2 || cpu_mitigations_off()) do_btb_flush_fixups(); else btb_flush_enabled = true; @@ -190,29 +190,22 @@ ssize_t cpu_show_spectre_v2(struct device *dev, struct device_attribute *attr, c bcs = security_ftr_enabled(SEC_FTR_BCCTRL_SERIALISED); ccd = security_ftr_enabled(SEC_FTR_COUNT_CACHE_DISABLED); - if (bcs || ccd || count_cache_flush_type != COUNT_CACHE_FLUSH_NONE) { - bool comma = false; + if (bcs || ccd) { seq_buf_printf(&s, "Mitigation: "); - if (bcs) { + if (bcs) seq_buf_printf(&s, "Indirect branch serialisation (kernel only)"); - comma = true; - } - if (ccd) { - if (comma) - seq_buf_printf(&s, ", "); - seq_buf_printf(&s, "Indirect branch cache disabled"); - comma = true; - } - - if (comma) + if (bcs && ccd) seq_buf_printf(&s, ", "); - seq_buf_printf(&s, "Software count cache flush"); + if (ccd) + seq_buf_printf(&s, "Indirect branch cache disabled"); + } else if (count_cache_flush_type != COUNT_CACHE_FLUSH_NONE) { + seq_buf_printf(&s, "Mitigation: Software count cache flush"); if (count_cache_flush_type == COUNT_CACHE_FLUSH_HW) - seq_buf_printf(&s, "(hardware accelerated)"); + seq_buf_printf(&s, " (hardware accelerated)"); } else if (btb_flush_enabled) { seq_buf_printf(&s, "Mitigation: Branch predictor state flush"); } else { @@ -307,7 +300,7 @@ void setup_stf_barrier(void) stf_enabled_flush_types = type; - if (!no_stf_barrier) + if (!no_stf_barrier && !cpu_mitigations_off()) stf_barrier_enable(enable); } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index ba404dd9ce1d..4f49e1a3594c 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -932,7 +932,7 @@ void setup_rfi_flush(enum l1d_flush_type types, bool enable) enabled_flush_types = types; - if (!no_rfi_flush) + if (!no_rfi_flush && !cpu_mitigations_off()) rfi_flush_enable(enable); } diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index b18abb0c3dae..00f5a63c8d9a 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -505,3 +505,7 @@ 421 32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 422 32 futex_time64 sys_futex sys_futex 423 32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S index 1e0bc5955a40..afd516b572f8 100644 --- a/arch/powerpc/kernel/vdso32/gettimeofday.S +++ b/arch/powerpc/kernel/vdso32/gettimeofday.S @@ -98,7 +98,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime) * can be used, r7 contains NSEC_PER_SEC. */ - lwz r5,WTOM_CLOCK_SEC(r9) + lwz r5,(WTOM_CLOCK_SEC+LOPART)(r9) lwz r6,WTOM_CLOCK_NSEC(r9) /* We now have our offset in r5,r6. We create a fake dependency diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S index a4ed9edfd5f0..1f324c28705b 100644 --- a/arch/powerpc/kernel/vdso64/gettimeofday.S +++ b/arch/powerpc/kernel/vdso64/gettimeofday.S @@ -92,7 +92,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime) * At this point, r4,r5 contain our sec/nsec values. */ - lwa r6,WTOM_CLOCK_SEC(r3) + ld r6,WTOM_CLOCK_SEC(r3) lwa r9,WTOM_CLOCK_NSEC(r3) /* We now have our result in r6,r9. We create a fake dependency @@ -125,7 +125,7 @@ V_FUNCTION_BEGIN(__kernel_clock_gettime) bne cr6,75f /* CLOCK_MONOTONIC_COARSE */ - lwa r6,WTOM_CLOCK_SEC(r3) + ld r6,WTOM_CLOCK_SEC(r3) lwa r9,WTOM_CLOCK_NSEC(r3) /* check if counter has updated */ diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c index f02b04973710..f100e331e69b 100644 --- a/arch/powerpc/kvm/book3s_64_vio.c +++ b/arch/powerpc/kvm/book3s_64_vio.c @@ -543,14 +543,14 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn, if (ret != H_SUCCESS) return ret; + idx = srcu_read_lock(&vcpu->kvm->srcu); + ret = kvmppc_tce_validate(stt, tce); if (ret != H_SUCCESS) - return ret; + goto unlock_exit; dir = iommu_tce_direction(tce); - idx = srcu_read_lock(&vcpu->kvm->srcu); - if ((dir != DMA_NONE) && kvmppc_tce_to_ua(vcpu->kvm, tce, &ua, NULL)) { ret = H_PARAMETER; goto unlock_exit; diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 06964350b97a..b2b29d4f9842 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3423,7 +3423,9 @@ static int kvmhv_load_hv_regs_and_go(struct kvm_vcpu *vcpu, u64 time_limit, vcpu->arch.shregs.sprg2 = mfspr(SPRN_SPRG2); vcpu->arch.shregs.sprg3 = mfspr(SPRN_SPRG3); - mtspr(SPRN_PSSCR, host_psscr); + /* Preserve PSSCR[FAKE_SUSPEND] until we've called kvmppc_save_tm_hv */ + mtspr(SPRN_PSSCR, host_psscr | + (local_paca->kvm_hstate.fake_suspend << PSSCR_FAKE_SUSPEND_LG)); mtspr(SPRN_HFSCR, host_hfscr); mtspr(SPRN_CIABR, host_ciabr); mtspr(SPRN_DAWR, host_dawr); diff --git a/arch/powerpc/lib/memcmp_64.S b/arch/powerpc/lib/memcmp_64.S index 844d8e774492..b7f6f6e0b6e8 100644 --- a/arch/powerpc/lib/memcmp_64.S +++ b/arch/powerpc/lib/memcmp_64.S @@ -215,11 +215,20 @@ _GLOBAL_TOC(memcmp) beq .Lzero .Lcmp_rest_lt8bytes: - /* Here we have only less than 8 bytes to compare with. at least s1 - * Address is aligned with 8 bytes. - * The next double words are load and shift right with appropriate - * bits. + /* + * Here we have less than 8 bytes to compare. At least s1 is aligned to + * 8 bytes, but s2 may not be. We must make sure s2 + 7 doesn't cross a + * page boundary, otherwise we might read past the end of the buffer and + * trigger a page fault. We use 4K as the conservative minimum page + * size. If we detect that case we go to the byte-by-byte loop. + * + * Otherwise the next double word is loaded from s1 and s2, and shifted + * right to compare the appropriate bits. */ + clrldi r6,r4,(64-12) // r6 = r4 & 0xfff + cmpdi r6,0xff8 + bgt .Lshort + subfic r6,r5,8 slwi r6,r6,3 LD rA,0,r3 diff --git a/arch/powerpc/mm/hash_low_32.S b/arch/powerpc/mm/hash_low_32.S index 1f13494efb2b..a6c491f18a04 100644 --- a/arch/powerpc/mm/hash_low_32.S +++ b/arch/powerpc/mm/hash_low_32.S @@ -70,12 +70,12 @@ _GLOBAL(hash_page) lis r0,KERNELBASE@h /* check if kernel address */ cmplw 0,r4,r0 ori r3,r3,_PAGE_USER|_PAGE_PRESENT /* test low addresses as user */ - mfspr r5, SPRN_SPRG_PGDIR /* virt page-table root */ + mfspr r5, SPRN_SPRG_PGDIR /* phys page-table root */ blt+ 112f /* assume user more likely */ - lis r5,swapper_pg_dir@ha /* if kernel address, use */ - addi r5,r5,swapper_pg_dir@l /* kernel page table */ + lis r5, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */ + addi r5 ,r5 ,(swapper_pg_dir - PAGE_OFFSET)@l /* kernel page table */ rlwimi r3,r9,32-12,29,29 /* MSR_PR -> _PAGE_USER */ -112: tophys(r5, r5) +112: #ifndef CONFIG_PTE_64BIT rlwimi r5,r4,12,20,29 /* insert top 10 bits of address */ lwz r8,0(r5) /* get pmd entry */ diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c index e7a9c4f6bfca..8330f135294f 100644 --- a/arch/powerpc/mm/mmu_context_iommu.c +++ b/arch/powerpc/mm/mmu_context_iommu.c @@ -95,28 +95,15 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua, unsigned long entries, unsigned long dev_hpa, struct mm_iommu_table_group_mem_t **pmem) { - struct mm_iommu_table_group_mem_t *mem; - long i, ret, locked_entries = 0; + struct mm_iommu_table_group_mem_t *mem, *mem2; + long i, ret, locked_entries = 0, pinned = 0; unsigned int pageshift; - - mutex_lock(&mem_list_mutex); - - list_for_each_entry_rcu(mem, &mm->context.iommu_group_mem_list, - next) { - /* Overlap? */ - if ((mem->ua < (ua + (entries << PAGE_SHIFT))) && - (ua < (mem->ua + - (mem->entries << PAGE_SHIFT)))) { - ret = -EINVAL; - goto unlock_exit; - } - - } + unsigned long entry, chunk; if (dev_hpa == MM_IOMMU_TABLE_INVALID_HPA) { ret = mm_iommu_adjust_locked_vm(mm, entries, true); if (ret) - goto unlock_exit; + return ret; locked_entries = entries; } @@ -148,17 +135,27 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua, } down_read(&mm->mmap_sem); - ret = get_user_pages_longterm(ua, entries, FOLL_WRITE, mem->hpages, NULL); + chunk = (1UL << (PAGE_SHIFT + MAX_ORDER - 1)) / + sizeof(struct vm_area_struct *); + chunk = min(chunk, entries); + for (entry = 0; entry < entries; entry += chunk) { + unsigned long n = min(entries - entry, chunk); + + ret = get_user_pages_longterm(ua + (entry << PAGE_SHIFT), n, + FOLL_WRITE, mem->hpages + entry, NULL); + if (ret == n) { + pinned += n; + continue; + } + if (ret > 0) + pinned += ret; + break; + } up_read(&mm->mmap_sem); - if (ret != entries) { - /* free the reference taken */ - for (i = 0; i < ret; i++) - put_page(mem->hpages[i]); - - vfree(mem->hpas); - kfree(mem); - ret = -EFAULT; - goto unlock_exit; + if (pinned != entries) { + if (!ret) + ret = -EFAULT; + goto free_exit; } pageshift = PAGE_SHIFT; @@ -183,21 +180,43 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua, } good_exit: - ret = 0; atomic64_set(&mem->mapped, 1); mem->used = 1; mem->ua = ua; mem->entries = entries; - *pmem = mem; - list_add_rcu(&mem->next, &mm->context.iommu_group_mem_list); + mutex_lock(&mem_list_mutex); -unlock_exit: - if (locked_entries && ret) - mm_iommu_adjust_locked_vm(mm, locked_entries, false); + list_for_each_entry_rcu(mem2, &mm->context.iommu_group_mem_list, next) { + /* Overlap? */ + if ((mem2->ua < (ua + (entries << PAGE_SHIFT))) && + (ua < (mem2->ua + + (mem2->entries << PAGE_SHIFT)))) { + ret = -EINVAL; + mutex_unlock(&mem_list_mutex); + goto free_exit; + } + } + + list_add_rcu(&mem->next, &mm->context.iommu_group_mem_list); mutex_unlock(&mem_list_mutex); + *pmem = mem; + + return 0; + +free_exit: + /* free the reference taken */ + for (i = 0; i < pinned; i++) + put_page(mem->hpages[i]); + + vfree(mem->hpas); + kfree(mem); + +unlock_exit: + mm_iommu_adjust_locked_vm(mm, locked_entries, false); + return ret; } @@ -266,7 +285,7 @@ static void mm_iommu_release(struct mm_iommu_table_group_mem_t *mem) long mm_iommu_put(struct mm_struct *mm, struct mm_iommu_table_group_mem_t *mem) { long ret = 0; - unsigned long entries, dev_hpa; + unsigned long unlock_entries = 0; mutex_lock(&mem_list_mutex); @@ -287,17 +306,17 @@ long mm_iommu_put(struct mm_struct *mm, struct mm_iommu_table_group_mem_t *mem) goto unlock_exit; } + if (mem->dev_hpa == MM_IOMMU_TABLE_INVALID_HPA) + unlock_entries = mem->entries; + /* @mapped became 0 so now mappings are disabled, release the region */ - entries = mem->entries; - dev_hpa = mem->dev_hpa; mm_iommu_release(mem); - if (dev_hpa == MM_IOMMU_TABLE_INVALID_HPA) - mm_iommu_adjust_locked_vm(mm, entries, false); - unlock_exit: mutex_unlock(&mem_list_mutex); + mm_iommu_adjust_locked_vm(mm, unlock_entries, false); + return ret; } EXPORT_SYMBOL_GPL(mm_iommu_put); diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index f29d2f118b44..5d9c3ff728c9 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -98,10 +98,20 @@ static int find_free_bat(void) return -1; } +/* + * This function calculates the size of the larger block usable to map the + * beginning of an area based on the start address and size of that area: + * - max block size is 8M on 601 and 256 on other 6xx. + * - base address must be aligned to the block size. So the maximum block size + * is identified by the lowest bit set to 1 in the base address (for instance + * if base is 0x16000000, max size is 0x02000000). + * - block size has to be a power of two. This is calculated by finding the + * highest bit set to 1. + */ static unsigned int block_size(unsigned long base, unsigned long top) { unsigned int max_size = (cpu_has_feature(CPU_FTR_601) ? 8 : 256) << 20; - unsigned int base_shift = (fls(base) - 1) & 31; + unsigned int base_shift = (ffs(base) - 1) & 31; unsigned int block_shift = (fls(top - base) - 1) & 31; return min3(max_size, 1U << base_shift, 1U << block_shift); @@ -157,7 +167,7 @@ static unsigned long __init __mmu_mapin_ram(unsigned long base, unsigned long to unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top) { - int done; + unsigned long done; unsigned long border = (unsigned long)__init_begin - PAGE_OFFSET; if (__map_without_bats) { @@ -169,10 +179,10 @@ unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top) return __mmu_mapin_ram(base, top); done = __mmu_mapin_ram(base, border); - if (done != border - base) + if (done != border) return done; - return done + __mmu_mapin_ram(border, top); + return __mmu_mapin_ram(border, top); } void mmu_mark_initmem_nx(void) diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index 549e9490ff2a..dcac37745b05 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -51,6 +51,8 @@ #define PPC_LIS(r, i) PPC_ADDIS(r, 0, i) #define PPC_STD(r, base, i) EMIT(PPC_INST_STD | ___PPC_RS(r) | \ ___PPC_RA(base) | ((i) & 0xfffc)) +#define PPC_STDX(r, base, b) EMIT(PPC_INST_STDX | ___PPC_RS(r) | \ + ___PPC_RA(base) | ___PPC_RB(b)) #define PPC_STDU(r, base, i) EMIT(PPC_INST_STDU | ___PPC_RS(r) | \ ___PPC_RA(base) | ((i) & 0xfffc)) #define PPC_STW(r, base, i) EMIT(PPC_INST_STW | ___PPC_RS(r) | \ @@ -65,7 +67,9 @@ #define PPC_LBZ(r, base, i) EMIT(PPC_INST_LBZ | ___PPC_RT(r) | \ ___PPC_RA(base) | IMM_L(i)) #define PPC_LD(r, base, i) EMIT(PPC_INST_LD | ___PPC_RT(r) | \ - ___PPC_RA(base) | IMM_L(i)) + ___PPC_RA(base) | ((i) & 0xfffc)) +#define PPC_LDX(r, base, b) EMIT(PPC_INST_LDX | ___PPC_RT(r) | \ + ___PPC_RA(base) | ___PPC_RB(b)) #define PPC_LWZ(r, base, i) EMIT(PPC_INST_LWZ | ___PPC_RT(r) | \ ___PPC_RA(base) | IMM_L(i)) #define PPC_LHZ(r, base, i) EMIT(PPC_INST_LHZ | ___PPC_RT(r) | \ @@ -85,17 +89,6 @@ ___PPC_RA(a) | ___PPC_RB(b)) #define PPC_BPF_STDCX(s, a, b) EMIT(PPC_INST_STDCX | ___PPC_RS(s) | \ ___PPC_RA(a) | ___PPC_RB(b)) - -#ifdef CONFIG_PPC64 -#define PPC_BPF_LL(r, base, i) do { PPC_LD(r, base, i); } while(0) -#define PPC_BPF_STL(r, base, i) do { PPC_STD(r, base, i); } while(0) -#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) -#else -#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0) -#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0) -#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) -#endif - #define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPW(a, b) EMIT(PPC_INST_CMPW | ___PPC_RA(a) | \ diff --git a/arch/powerpc/net/bpf_jit32.h b/arch/powerpc/net/bpf_jit32.h index dc50a8d4b3b9..21744d8aa053 100644 --- a/arch/powerpc/net/bpf_jit32.h +++ b/arch/powerpc/net/bpf_jit32.h @@ -122,6 +122,10 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); #define PPC_NTOHS_OFFS(r, base, i) PPC_LHZ_OFFS(r, base, i) #endif +#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0) +#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0) +#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) + #define SEEN_DATAREF 0x10000 /* might call external helpers */ #define SEEN_XREG 0x20000 /* X reg is used */ #define SEEN_MEM 0x40000 /* SEEN_MEM+(1<<n) = use mem[n] for temporary diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h index 3609be4692b3..47f441f351a6 100644 --- a/arch/powerpc/net/bpf_jit64.h +++ b/arch/powerpc/net/bpf_jit64.h @@ -68,6 +68,26 @@ static const int b2p[] = { /* PPC NVR range -- update this if we ever use NVRs below r27 */ #define BPF_PPC_NVR_MIN 27 +/* + * WARNING: These can use TMP_REG_2 if the offset is not at word boundary, + * so ensure that it isn't in use already. + */ +#define PPC_BPF_LL(r, base, i) do { \ + if ((i) % 4) { \ + PPC_LI(b2p[TMP_REG_2], (i)); \ + PPC_LDX(r, base, b2p[TMP_REG_2]); \ + } else \ + PPC_LD(r, base, i); \ + } while(0) +#define PPC_BPF_STL(r, base, i) do { \ + if ((i) % 4) { \ + PPC_LI(b2p[TMP_REG_2], (i)); \ + PPC_STDX(r, base, b2p[TMP_REG_2]); \ + } else \ + PPC_STD(r, base, i); \ + } while(0) +#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0) + #define SEEN_FUNC 0x1000 /* might call external helpers */ #define SEEN_STACK 0x2000 /* uses BPF stack */ #define SEEN_TAILCALL 0x4000 /* uses tail calls */ diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 4194d3cfb60c..21a1dcd4b156 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -252,7 +252,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 * if (tail_call_cnt > MAX_TAIL_CALL_CNT) * goto out; */ - PPC_LD(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); + PPC_BPF_LL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); PPC_CMPLWI(b2p[TMP_REG_1], MAX_TAIL_CALL_CNT); PPC_BCC(COND_GT, out); @@ -265,7 +265,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 /* prog = array->ptrs[index]; */ PPC_MULI(b2p[TMP_REG_1], b2p_index, 8); PPC_ADD(b2p[TMP_REG_1], b2p[TMP_REG_1], b2p_bpf_array); - PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)); + PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs)); /* * if (prog == NULL) @@ -275,7 +275,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 PPC_BCC(COND_EQ, out); /* goto *(prog->bpf_func + prologue_size); */ - PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)); + PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func)); #ifdef PPC64_ELF_ABI_v1 /* skip past the function descriptor */ PPC_ADDI(b2p[TMP_REG_1], b2p[TMP_REG_1], @@ -606,7 +606,7 @@ bpf_alu32_trunc: * the instructions generated will remain the * same across all passes */ - PPC_STD(dst_reg, 1, bpf_jit_stack_local(ctx)); + PPC_BPF_STL(dst_reg, 1, bpf_jit_stack_local(ctx)); PPC_ADDI(b2p[TMP_REG_1], 1, bpf_jit_stack_local(ctx)); PPC_LDBRX(dst_reg, 0, b2p[TMP_REG_1]); break; @@ -662,7 +662,7 @@ emit_clear: PPC_LI32(b2p[TMP_REG_1], imm); src_reg = b2p[TMP_REG_1]; } - PPC_STD(src_reg, dst_reg, off); + PPC_BPF_STL(src_reg, dst_reg, off); break; /* @@ -709,7 +709,7 @@ emit_clear: break; /* dst = *(u64 *)(ul) (src + off) */ case BPF_LDX | BPF_MEM | BPF_DW: - PPC_LD(dst_reg, src_reg, off); + PPC_BPF_LL(dst_reg, src_reg, off); break; /* diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 842b2c7e156a..50cd09b4e05d 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -324,7 +324,7 @@ config ARCH_ENABLE_SPLIT_PMD_PTLOCK config PPC_RADIX_MMU bool "Radix MMU Support" - depends on PPC_BOOK3S_64 + depends on PPC_BOOK3S_64 && HUGETLB_PAGE select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA default y help diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c index 6ed22127391b..921f12182f3e 100644 --- a/arch/powerpc/platforms/pseries/pseries_energy.c +++ b/arch/powerpc/platforms/pseries/pseries_energy.c @@ -77,18 +77,27 @@ static u32 cpu_to_drc_index(int cpu) ret = drc.drc_index_start + (thread_index * drc.sequential_inc); } else { - const __be32 *indexes; - - indexes = of_get_property(dn, "ibm,drc-indexes", NULL); - if (indexes == NULL) - goto err_of_node_put; + u32 nr_drc_indexes, thread_drc_index; /* - * The first element indexes[0] is the number of drc_indexes - * returned in the list. Hence thread_index+1 will get the - * drc_index corresponding to core number thread_index. + * The first element of ibm,drc-indexes array is the + * number of drc_indexes returned in the list. Hence + * thread_index+1 will get the drc_index corresponding + * to core number thread_index. */ - ret = indexes[thread_index + 1]; + rc = of_property_read_u32_index(dn, "ibm,drc-indexes", + 0, &nr_drc_indexes); + if (rc) + goto err_of_node_put; + + WARN_ON_ONCE(thread_index > nr_drc_indexes); + rc = of_property_read_u32_index(dn, "ibm,drc-indexes", + thread_index + 1, + &thread_drc_index); + if (rc) + goto err_of_node_put; + + ret = thread_drc_index; } rc = 0; diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index d97d52772789..452dcfd7e5dd 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -550,6 +550,7 @@ static void pseries_print_mce_info(struct pt_regs *regs, "UE", "SLB", "ERAT", + "Unknown", "TLB", "D-Cache", "Unknown", diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index eb56c82d8aa1..0582260fb6c2 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -69,9 +69,6 @@ config STACKTRACE_SUPPORT config TRACE_IRQFLAGS_SUPPORT def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool y - config GENERIC_BUG def_bool y depends on BUG diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig new file mode 100644 index 000000000000..1a911ed8e772 --- /dev/null +++ b/arch/riscv/configs/rv32_defconfig @@ -0,0 +1,84 @@ +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_CGROUPS=y +CONFIG_CGROUP_SCHED=y +CONFIG_CFS_BANDWIDTH=y +CONFIG_CGROUP_BPF=y +CONFIG_NAMESPACES=y +CONFIG_USER_NS=y +CONFIG_CHECKPOINT_RESTORE=y +CONFIG_BLK_DEV_INITRD=y +CONFIG_EXPERT=y +CONFIG_BPF_SYSCALL=y +CONFIG_ARCH_RV32I=y +CONFIG_SMP=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NETLINK_DIAG=y +CONFIG_PCI=y +CONFIG_PCIEPORTBUS=y +CONFIG_PCI_HOST_GENERIC=y +CONFIG_PCIE_XILINX=y +CONFIG_DEVTMPFS=y +CONFIG_BLK_DEV_LOOP=y +CONFIG_VIRTIO_BLK=y +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_DEV_SR=y +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_AHCI_PLATFORM=y +CONFIG_NETDEVICES=y +CONFIG_VIRTIO_NET=y +CONFIG_MACB=y +CONFIG_E1000E=y +CONFIG_R8169=y +CONFIG_MICROSEMI_PHY=y +CONFIG_INPUT_MOUSEDEV=y +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_EARLYCON_RISCV_SBI=y +CONFIG_HVC_RISCV_SBI=y +# CONFIG_PTP_1588_CLOCK is not set +CONFIG_DRM=y +CONFIG_DRM_RADEON=y +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_USB=y +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_XHCI_PLATFORM=y +CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_HCD_PLATFORM=y +CONFIG_USB_OHCI_HCD=y +CONFIG_USB_OHCI_HCD_PLATFORM=y +CONFIG_USB_STORAGE=y +CONFIG_USB_UAS=y +CONFIG_VIRTIO_MMIO=y +CONFIG_SIFIVE_PLIC=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_AUTOFS4_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_TMPFS=y +CONFIG_TMPFS_POSIX_ACL=y +CONFIG_NFS_FS=y +CONFIG_NFS_V4=y +CONFIG_NFS_V4_1=y +CONFIG_NFS_V4_2=y +CONFIG_ROOT_NFS=y +CONFIG_CRYPTO_USER_API_HASH=y +CONFIG_CRYPTO_DEV_VIRTIO=y +CONFIG_PRINTK_TIME=y +# CONFIG_RCU_TRACE is not set diff --git a/arch/riscv/include/asm/fixmap.h b/arch/riscv/include/asm/fixmap.h index 57afe604b495..c207f6634b91 100644 --- a/arch/riscv/include/asm/fixmap.h +++ b/arch/riscv/include/asm/fixmap.h @@ -26,7 +26,7 @@ enum fixed_addresses { }; #define FIXADDR_SIZE (__end_of_fixed_addresses * PAGE_SIZE) -#define FIXADDR_TOP (PAGE_OFFSET) +#define FIXADDR_TOP (VMALLOC_START) #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) #define FIXMAP_PAGE_IO PAGE_KERNEL diff --git a/arch/riscv/include/asm/syscall.h b/arch/riscv/include/asm/syscall.h index bba3da6ef157..a3d5273ded7c 100644 --- a/arch/riscv/include/asm/syscall.h +++ b/arch/riscv/include/asm/syscall.h @@ -72,32 +72,20 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - if (i == 0) { - args[0] = regs->orig_a0; - args++; - i++; - n--; - } - memcpy(args, ®s->a1 + i * sizeof(regs->a1), n * sizeof(args[0])); + args[0] = regs->orig_a0; + args++; + memcpy(args, ®s->a1, 5 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - BUG_ON(i + n > 6); - if (i == 0) { - regs->orig_a0 = args[0]; - args++; - i++; - n--; - } - memcpy(®s->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0)); + regs->orig_a0 = args[0]; + args++; + memcpy(®s->a1, args, 5 * sizeof(regs->a1)); } static inline int syscall_get_arch(void) diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h index 439dc7072e05..1ad8d093c58b 100644 --- a/arch/riscv/include/asm/tlb.h +++ b/arch/riscv/include/asm/tlb.h @@ -18,6 +18,7 @@ struct mmu_gather; static void tlb_flush(struct mmu_gather *tlb); +#define tlb_flush tlb_flush #include <asm-generic/tlb.h> static inline void tlb_flush(struct mmu_gather *tlb) diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index a00168b980d2..fb53a8089e76 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -300,7 +300,7 @@ do { \ " .balign 4\n" \ "4:\n" \ " li %0, %6\n" \ - " jump 2b, %1\n" \ + " jump 3b, %1\n" \ " .previous\n" \ " .section __ex_table,\"a\"\n" \ " .balign " RISCV_SZPTR "\n" \ diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile index f13f7f276639..598568168d35 100644 --- a/arch/riscv/kernel/Makefile +++ b/arch/riscv/kernel/Makefile @@ -4,7 +4,6 @@ ifdef CONFIG_FTRACE CFLAGS_REMOVE_ftrace.o = -pg -CFLAGS_REMOVE_setup.o = -pg endif extra-y += head.o @@ -29,8 +28,6 @@ obj-y += vdso.o obj-y += cacheinfo.o obj-y += vdso/ -CFLAGS_setup.o := -mcmodel=medany - obj-$(CONFIG_FPU) += fpu.o obj-$(CONFIG_SMP) += smpboot.o obj-$(CONFIG_SMP) += smp.o diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index 7dd308129b40..2872edce894d 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -141,7 +141,7 @@ static int apply_r_riscv_hi20_rela(struct module *me, u32 *location, { s32 hi20; - if (IS_ENABLED(CMODEL_MEDLOW)) { + if (IS_ENABLED(CONFIG_CMODEL_MEDLOW)) { pr_err( "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", me->name, (long long)v, location); diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index ecb654f6a79e..540a331d1376 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -48,14 +48,6 @@ struct screen_info screen_info = { }; #endif -unsigned long va_pa_offset; -EXPORT_SYMBOL(va_pa_offset); -unsigned long pfn_base; -EXPORT_SYMBOL(pfn_base); - -unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)] __page_aligned_bss; -EXPORT_SYMBOL(empty_zero_page); - /* The lucky hart to first increment this variable will boot the other cores */ atomic_t hart_lottery; unsigned long boot_cpu_hartid; diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c index a4b1d94371a0..4d403274c2e8 100644 --- a/arch/riscv/kernel/stacktrace.c +++ b/arch/riscv/kernel/stacktrace.c @@ -169,8 +169,6 @@ static bool save_trace(unsigned long pc, void *arg) void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) { walk_stackframe(tsk, NULL, save_trace, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace_tsk); diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile index eb22ab49b3e0..b68aac701803 100644 --- a/arch/riscv/mm/Makefile +++ b/arch/riscv/mm/Makefile @@ -1,3 +1,9 @@ + +CFLAGS_init.o := -mcmodel=medany +ifdef CONFIG_FTRACE +CFLAGS_REMOVE_init.o = -pg +endif + obj-y += init.o obj-y += fault.o obj-y += extable.o diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index b379a75ac6a6..bc7b77e34d09 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -25,6 +25,10 @@ #include <asm/pgtable.h> #include <asm/io.h> +unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)] + __page_aligned_bss; +EXPORT_SYMBOL(empty_zero_page); + static void __init zone_sizes_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, }; @@ -117,6 +121,14 @@ void __init setup_bootmem(void) */ memblock_reserve(reg->base, vmlinux_end - reg->base); mem_size = min(reg->size, (phys_addr_t)-PAGE_OFFSET); + + /* + * Remove memblock from the end of usable area to the + * end of region + */ + if (reg->base + mem_size < end) + memblock_remove(reg->base + mem_size, + end - reg->base - mem_size); } } BUG_ON(mem_size == 0); @@ -143,6 +155,11 @@ void __init setup_bootmem(void) } } +unsigned long va_pa_offset; +EXPORT_SYMBOL(va_pa_offset); +unsigned long pfn_base; +EXPORT_SYMBOL(pfn_base); + pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_bss; pgd_t trampoline_pg_dir[PTRS_PER_PGD] __initdata __aligned(PAGE_SIZE); @@ -172,6 +189,25 @@ void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot) } } +/* + * setup_vm() is called from head.S with MMU-off. + * + * Following requirements should be honoured for setup_vm() to work + * correctly: + * 1) It should use PC-relative addressing for accessing kernel symbols. + * To achieve this we always use GCC cmodel=medany. + * 2) The compiler instrumentation for FTRACE will not work for setup_vm() + * so disable compiler instrumentation when FTRACE is enabled. + * + * Currently, the above requirements are honoured by using custom CFLAGS + * for init.o in mm/Makefile. + */ + +#ifndef __riscv_cmodel_medany +#error "setup_vm() is called from head.S before relocate so it should " + "not use absolute addressing." +#endif + asmlinkage void __init setup_vm(void) { extern char _start; diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index b6e3d0653002..97b555e772d7 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -14,12 +14,6 @@ config LOCKDEP_SUPPORT config STACKTRACE_SUPPORT def_bool y -config RWSEM_GENERIC_SPINLOCK - bool - -config RWSEM_XCHGADD_ALGORITHM - def_bool y - config ARCH_HAS_ILOG2_U32 def_bool n @@ -164,11 +158,13 @@ config S390 select HAVE_PERF_USER_STACK_DUMP select HAVE_MEMBLOCK_NODE_MAP select HAVE_MEMBLOCK_PHYS_MAP + select HAVE_MMU_GATHER_NO_GATHER select HAVE_MOD_ARCH_SPECIFIC select HAVE_NOP_MCOUNT select HAVE_OPROFILE select HAVE_PCI select HAVE_PERF_EVENTS + select HAVE_RCU_TABLE_FREE select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RSEQ select HAVE_SYSCALL_TRACEPOINTS diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c index 4cb771ba13fa..5d316fe40480 100644 --- a/arch/s390/boot/mem_detect.c +++ b/arch/s390/boot/mem_detect.c @@ -25,7 +25,7 @@ static void *mem_detect_alloc_extended(void) { unsigned long offset = ALIGN(mem_safe_offset(), sizeof(u64)); - if (IS_ENABLED(BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE && + if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE && INITRD_START < offset + ENTRIES_EXTENDED_MAX) offset = ALIGN(INITRD_START + INITRD_SIZE, sizeof(u64)); diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 12d77cb11fe5..d5fadefea33c 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -20,7 +20,6 @@ generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h -generic-y += rwsem.h generic-y += trace_clock.h generic-y += unaligned.h generic-y += word-at-a-time.h diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h index 1a6a7092d942..e94a0a28b5eb 100644 --- a/arch/s390/include/asm/ap.h +++ b/arch/s390/include/asm/ap.h @@ -360,4 +360,15 @@ static inline struct ap_queue_status ap_dqap(ap_qid_t qid, return reg1; } +/* + * Interface to tell the AP bus code that a configuration + * change has happened. The bus code should at least do + * an ap bus resource rescan. + */ +#if IS_ENABLED(CONFIG_ZCRYPT) +void ap_bus_cfg_chg(void); +#else +static inline void ap_bus_cfg_chg(void){}; +#endif + #endif /* _ASM_S390_AP_H_ */ diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 7d22a474a040..f74639a05f0f 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -252,11 +252,14 @@ do { \ /* * Cache aliasing on the latest machines calls for a mapping granularity - * of 512KB. For 64-bit processes use a 512KB alignment and a randomization - * of up to 1GB. For 31-bit processes the virtual address space is limited, - * use no alignment and limit the randomization to 8MB. + * of 512KB for the anonymous mapping base. For 64-bit processes use a + * 512KB alignment and a randomization of up to 1GB. For 31-bit processes + * the virtual address space is limited, use no alignment and limit the + * randomization to 8MB. + * For the additional randomization of the program break use 32MB for + * 64-bit and 8MB for 31-bit. */ -#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ffffUL) +#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x1fffUL) #define MMAP_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ff80UL) #define MMAP_ALIGN_MASK (is_compat_task() ? 0 : 0x7fUL) #define STACK_RND_MASK MMAP_RND_MASK diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index cc0947e08b6f..5b9f10b1e55d 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -91,52 +91,53 @@ struct lowcore { __u64 hardirq_timer; /* 0x02e8 */ __u64 softirq_timer; /* 0x02f0 */ __u64 steal_timer; /* 0x02f8 */ - __u64 last_update_timer; /* 0x0300 */ - __u64 last_update_clock; /* 0x0308 */ - __u64 int_clock; /* 0x0310 */ - __u64 mcck_clock; /* 0x0318 */ - __u64 clock_comparator; /* 0x0320 */ - __u64 boot_clock[2]; /* 0x0328 */ + __u64 avg_steal_timer; /* 0x0300 */ + __u64 last_update_timer; /* 0x0308 */ + __u64 last_update_clock; /* 0x0310 */ + __u64 int_clock; /* 0x0318*/ + __u64 mcck_clock; /* 0x0320 */ + __u64 clock_comparator; /* 0x0328 */ + __u64 boot_clock[2]; /* 0x0330 */ /* Current process. */ - __u64 current_task; /* 0x0338 */ - __u64 kernel_stack; /* 0x0340 */ + __u64 current_task; /* 0x0340 */ + __u64 kernel_stack; /* 0x0348 */ /* Interrupt, DAT-off and restartstack. */ - __u64 async_stack; /* 0x0348 */ - __u64 nodat_stack; /* 0x0350 */ - __u64 restart_stack; /* 0x0358 */ + __u64 async_stack; /* 0x0350 */ + __u64 nodat_stack; /* 0x0358 */ + __u64 restart_stack; /* 0x0360 */ /* Restart function and parameter. */ - __u64 restart_fn; /* 0x0360 */ - __u64 restart_data; /* 0x0368 */ - __u64 restart_source; /* 0x0370 */ + __u64 restart_fn; /* 0x0368 */ + __u64 restart_data; /* 0x0370 */ + __u64 restart_source; /* 0x0378 */ /* Address space pointer. */ - __u64 kernel_asce; /* 0x0378 */ - __u64 user_asce; /* 0x0380 */ - __u64 vdso_asce; /* 0x0388 */ + __u64 kernel_asce; /* 0x0380 */ + __u64 user_asce; /* 0x0388 */ + __u64 vdso_asce; /* 0x0390 */ /* * The lpp and current_pid fields form a * 64-bit value that is set as program * parameter with the LPP instruction. */ - __u32 lpp; /* 0x0390 */ - __u32 current_pid; /* 0x0394 */ + __u32 lpp; /* 0x0398 */ + __u32 current_pid; /* 0x039c */ /* SMP info area */ - __u32 cpu_nr; /* 0x0398 */ - __u32 softirq_pending; /* 0x039c */ - __u32 preempt_count; /* 0x03a0 */ - __u32 spinlock_lockval; /* 0x03a4 */ - __u32 spinlock_index; /* 0x03a8 */ - __u32 fpu_flags; /* 0x03ac */ - __u64 percpu_offset; /* 0x03b0 */ - __u64 vdso_per_cpu_data; /* 0x03b8 */ - __u64 machine_flags; /* 0x03c0 */ - __u64 gmap; /* 0x03c8 */ - __u8 pad_0x03d0[0x0400-0x03d0]; /* 0x03d0 */ + __u32 cpu_nr; /* 0x03a0 */ + __u32 softirq_pending; /* 0x03a4 */ + __u32 preempt_count; /* 0x03a8 */ + __u32 spinlock_lockval; /* 0x03ac */ + __u32 spinlock_index; /* 0x03b0 */ + __u32 fpu_flags; /* 0x03b4 */ + __u64 percpu_offset; /* 0x03b8 */ + __u64 vdso_per_cpu_data; /* 0x03c0 */ + __u64 machine_flags; /* 0x03c8 */ + __u64 gmap; /* 0x03d0 */ + __u8 pad_0x03d8[0x0400-0x03d8]; /* 0x03d8 */ /* br %r1 trampoline */ __u16 br_r1_trampoline; /* 0x0400 */ diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 96f9a9151fde..59c3e91f2cdb 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -56,40 +56,32 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { unsigned long mask = -1UL; + unsigned int n = 6; - /* - * No arguments for this syscall, there's nothing to do. - */ - if (!n) - return; - - BUG_ON(i + n > 6); #ifdef CONFIG_COMPAT if (test_tsk_thread_flag(task, TIF_31BIT)) mask = 0xffffffff; #endif while (n-- > 0) - if (i + n > 0) - args[n] = regs->gprs[2 + i + n] & mask; - if (i == 0) - args[0] = regs->orig_gpr2 & mask; + if (n > 0) + args[n] = regs->gprs[2 + n] & mask; + + args[0] = regs->orig_gpr2 & mask; } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - BUG_ON(i + n > 6); + unsigned int n = 6; + while (n-- > 0) - if (i + n > 0) - regs->gprs[2 + i + n] = args[n]; - if (i == 0) - regs->orig_gpr2 = args[0]; + if (n > 0) + regs->gprs[2 + n] = args[n]; + regs->orig_gpr2 = args[0]; } static inline int syscall_get_arch(void) diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index b31c779cf581..aa406c05a350 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -22,98 +22,39 @@ * Pages used for the page tables is a different story. FIXME: more */ -#include <linux/mm.h> -#include <linux/pagemap.h> -#include <linux/swap.h> -#include <asm/processor.h> -#include <asm/pgalloc.h> -#include <asm/tlbflush.h> - -struct mmu_gather { - struct mm_struct *mm; - struct mmu_table_batch *batch; - unsigned int fullmm; - unsigned long start, end; -}; - -struct mmu_table_batch { - struct rcu_head rcu; - unsigned int nr; - void *tables[0]; -}; - -#define MAX_TABLE_BATCH \ - ((PAGE_SIZE - sizeof(struct mmu_table_batch)) / sizeof(void *)) - -extern void tlb_table_flush(struct mmu_gather *tlb); -extern void tlb_remove_table(struct mmu_gather *tlb, void *table); - -static inline void -arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, - unsigned long start, unsigned long end) -{ - tlb->mm = mm; - tlb->start = start; - tlb->end = end; - tlb->fullmm = !(start | (end+1)); - tlb->batch = NULL; -} - -static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) -{ - __tlb_flush_mm_lazy(tlb->mm); -} - -static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) -{ - tlb_table_flush(tlb); -} - +void __tlb_remove_table(void *_table); +static inline void tlb_flush(struct mmu_gather *tlb); +static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, + struct page *page, int page_size); -static inline void tlb_flush_mmu(struct mmu_gather *tlb) -{ - tlb_flush_mmu_tlbonly(tlb); - tlb_flush_mmu_free(tlb); -} +#define tlb_start_vma(tlb, vma) do { } while (0) +#define tlb_end_vma(tlb, vma) do { } while (0) -static inline void -arch_tlb_finish_mmu(struct mmu_gather *tlb, - unsigned long start, unsigned long end, bool force) -{ - if (force) { - tlb->start = start; - tlb->end = end; - } +#define tlb_flush tlb_flush +#define pte_free_tlb pte_free_tlb +#define pmd_free_tlb pmd_free_tlb +#define p4d_free_tlb p4d_free_tlb +#define pud_free_tlb pud_free_tlb - tlb_flush_mmu(tlb); -} +#include <asm/pgalloc.h> +#include <asm/tlbflush.h> +#include <asm-generic/tlb.h> /* * Release the page cache reference for a pte removed by * tlb_ptep_clear_flush. In both flush modes the tlb for a page cache page * has already been freed, so just do free_page_and_swap_cache. */ -static inline bool __tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - free_page_and_swap_cache(page); - return false; /* avoid calling tlb_flush_mmu */ -} - -static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - free_page_and_swap_cache(page); -} - static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_size) { - return __tlb_remove_page(tlb, page); + free_page_and_swap_cache(page); + return false; } -static inline void tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) +static inline void tlb_flush(struct mmu_gather *tlb) { - return tlb_remove_page(tlb, page); + __tlb_flush_mm_lazy(tlb->mm); } /* @@ -121,8 +62,17 @@ static inline void tlb_remove_page_size(struct mmu_gather *tlb, * page table from the tlb. */ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, - unsigned long address) + unsigned long address) { + __tlb_adjust_range(tlb, address, PAGE_SIZE); + tlb->mm->context.flush_mm = 1; + tlb->freed_tables = 1; + tlb->cleared_ptes = 1; + /* + * page_table_free_rcu takes care of the allocation bit masks + * of the 2K table fragments in the 4K page table page, + * then calls tlb_remove_table. + */ page_table_free_rcu(tlb, (unsigned long *) pte, address); } @@ -139,6 +89,10 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, if (mm_pmd_folded(tlb->mm)) return; pgtable_pmd_page_dtor(virt_to_page(pmd)); + __tlb_adjust_range(tlb, address, PAGE_SIZE); + tlb->mm->context.flush_mm = 1; + tlb->freed_tables = 1; + tlb->cleared_puds = 1; tlb_remove_table(tlb, pmd); } @@ -154,6 +108,10 @@ static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, { if (mm_p4d_folded(tlb->mm)) return; + __tlb_adjust_range(tlb, address, PAGE_SIZE); + tlb->mm->context.flush_mm = 1; + tlb->freed_tables = 1; + tlb->cleared_p4ds = 1; tlb_remove_table(tlb, p4d); } @@ -169,21 +127,11 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, { if (mm_pud_folded(tlb->mm)) return; + tlb->mm->context.flush_mm = 1; + tlb->freed_tables = 1; + tlb->cleared_puds = 1; tlb_remove_table(tlb, pud); } -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define tlb_remove_tlb_entry(tlb, ptep, addr) do { } while (0) -#define tlb_remove_pmd_tlb_entry(tlb, pmdp, addr) do { } while (0) -#define tlb_migrate_finish(mm) do { } while (0) -#define tlb_remove_huge_tlb_entry(h, tlb, ptep, address) \ - tlb_remove_tlb_entry(tlb, ptep, address) - -#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change -static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, - unsigned int page_size) -{ -} #endif /* _S390_TLB_H */ diff --git a/arch/s390/kernel/fpu.c b/arch/s390/kernel/fpu.c index 594464f2129d..0da378e2eb25 100644 --- a/arch/s390/kernel/fpu.c +++ b/arch/s390/kernel/fpu.c @@ -23,7 +23,7 @@ void __kernel_fpu_begin(struct kernel_fpu *state, u32 flags) if (flags & KERNEL_FPC) /* Save floating point control */ - asm volatile("stfpc %0" : "=m" (state->fpc)); + asm volatile("stfpc %0" : "=Q" (state->fpc)); if (!MACHINE_HAS_VX) { if (flags & KERNEL_VXR_V0V7) { diff --git a/arch/s390/kernel/nospec-branch.c b/arch/s390/kernel/nospec-branch.c index bdddaae96559..649135cbedd5 100644 --- a/arch/s390/kernel/nospec-branch.c +++ b/arch/s390/kernel/nospec-branch.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/module.h> #include <linux/device.h> +#include <linux/cpu.h> #include <asm/nospec-branch.h> static int __init nobp_setup_early(char *str) @@ -58,7 +59,7 @@ early_param("nospectre_v2", nospectre_v2_setup_early); void __init nospec_auto_detect(void) { - if (test_facility(156)) { + if (test_facility(156) || cpu_mitigations_off()) { /* * The machine supports etokens. * Disable expolines and disable nobp. diff --git a/arch/s390/kernel/perf_cpum_cf_diag.c b/arch/s390/kernel/perf_cpum_cf_diag.c index c6fad208c2fa..b6854812d2ed 100644 --- a/arch/s390/kernel/perf_cpum_cf_diag.c +++ b/arch/s390/kernel/perf_cpum_cf_diag.c @@ -196,23 +196,30 @@ static void cf_diag_perf_event_destroy(struct perf_event *event) */ static int __hw_perf_event_init(struct perf_event *event) { - struct cpu_cf_events *cpuhw = this_cpu_ptr(&cpu_cf_events); struct perf_event_attr *attr = &event->attr; + struct cpu_cf_events *cpuhw; enum cpumf_ctr_set i; int err = 0; - debug_sprintf_event(cf_diag_dbg, 5, - "%s event %p cpu %d authorized %#x\n", __func__, - event, event->cpu, cpuhw->info.auth_ctl); + debug_sprintf_event(cf_diag_dbg, 5, "%s event %p cpu %d\n", __func__, + event, event->cpu); event->hw.config = attr->config; event->hw.config_base = 0; - local64_set(&event->count, 0); - /* Add all authorized counter sets to config_base */ + /* Add all authorized counter sets to config_base. The + * the hardware init function is either called per-cpu or just once + * for all CPUS (event->cpu == -1). This depends on the whether + * counting is started for all CPUs or on a per workload base where + * the perf event moves from one CPU to another CPU. + * Checking the authorization on any CPU is fine as the hardware + * applies the same authorization settings to all CPUs. + */ + cpuhw = &get_cpu_var(cpu_cf_events); for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i) if (cpuhw->info.auth_ctl & cpumf_ctr_ctl[i]) event->hw.config_base |= cpumf_ctr_ctl[i]; + put_cpu_var(cpu_cf_events); /* No authorized counter sets, nothing to count/sample */ if (!event->hw.config_base) { diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 3fe1c77c361b..bd197baf1dc3 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -266,7 +266,8 @@ static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu) lc->percpu_offset = __per_cpu_offset[cpu]; lc->kernel_asce = S390_lowcore.kernel_asce; lc->machine_flags = S390_lowcore.machine_flags; - lc->user_timer = lc->system_timer = lc->steal_timer = 0; + lc->user_timer = lc->system_timer = + lc->steal_timer = lc->avg_steal_timer = 0; __ctl_store(lc->cregs_save_area, 0, 15); save_access_regs((unsigned int *) lc->access_regs_save_area); memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list, diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c index 460dcfba7d4e..cc9ed9787068 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c @@ -45,8 +45,6 @@ void save_stack_trace(struct stack_trace *trace) sp = current_stack_pointer(); dump_trace(save_address, trace, NULL, sp); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace); @@ -58,8 +56,6 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) if (tsk == current) sp = current_stack_pointer(); dump_trace(save_address_nosched, trace, tsk, sp); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace_tsk); @@ -69,7 +65,5 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace) sp = kernel_stack_pointer(regs); dump_trace(save_address, trace, NULL, sp); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace_regs); diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index 02579f95f391..061418f787c3 100644 --- a/arch/s390/kernel/syscalls/syscall.tbl +++ b/arch/s390/kernel/syscalls/syscall.tbl @@ -426,3 +426,7 @@ 421 32 rt_sigtimedwait_time64 - compat_sys_rt_sigtimedwait_time64 422 32 futex_time64 - sys_futex 423 32 sched_rr_get_interval_time64 - sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register sys_io_uring_register diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 98f850e00008..c475ca49cfc6 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -37,7 +37,7 @@ static inline u64 get_vtimer(void) { u64 timer; - asm volatile("stpt %0" : "=m" (timer)); + asm volatile("stpt %0" : "=Q" (timer)); return timer; } @@ -48,7 +48,7 @@ static inline void set_vtimer(u64 expires) asm volatile( " stpt %0\n" /* Store current cpu timer value */ " spt %1" /* Set new value imm. afterwards */ - : "=m" (timer) : "m" (expires)); + : "=Q" (timer) : "Q" (expires)); S390_lowcore.system_timer += S390_lowcore.last_update_timer - timer; S390_lowcore.last_update_timer = expires; } @@ -124,7 +124,7 @@ static void account_system_index_scaled(struct task_struct *p, u64 cputime, */ static int do_account_vtime(struct task_struct *tsk) { - u64 timer, clock, user, guest, system, hardirq, softirq, steal; + u64 timer, clock, user, guest, system, hardirq, softirq; timer = S390_lowcore.last_update_timer; clock = S390_lowcore.last_update_clock; @@ -135,8 +135,8 @@ static int do_account_vtime(struct task_struct *tsk) #else " stck %1" /* Store current tod clock value */ #endif - : "=m" (S390_lowcore.last_update_timer), - "=m" (S390_lowcore.last_update_clock)); + : "=Q" (S390_lowcore.last_update_timer), + "=Q" (S390_lowcore.last_update_clock)); clock = S390_lowcore.last_update_clock - clock; timer -= S390_lowcore.last_update_timer; @@ -182,12 +182,6 @@ static int do_account_vtime(struct task_struct *tsk) if (softirq) account_system_index_scaled(tsk, softirq, CPUTIME_SOFTIRQ); - steal = S390_lowcore.steal_timer; - if ((s64) steal > 0) { - S390_lowcore.steal_timer = 0; - account_steal_time(cputime_to_nsecs(steal)); - } - return virt_timer_forward(user + guest + system + hardirq + softirq); } @@ -213,8 +207,19 @@ void vtime_task_switch(struct task_struct *prev) */ void vtime_flush(struct task_struct *tsk) { + u64 steal, avg_steal; + if (do_account_vtime(tsk)) virt_timer_expire(); + + steal = S390_lowcore.steal_timer; + avg_steal = S390_lowcore.avg_steal_timer / 2; + if ((s64) steal > 0) { + S390_lowcore.steal_timer = 0; + account_steal_time(steal); + avg_steal += steal; + } + S390_lowcore.avg_steal_timer = avg_steal; } /* diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c index db6bb2f97a2c..99e06213a22b 100644 --- a/arch/s390/mm/pgalloc.c +++ b/arch/s390/mm/pgalloc.c @@ -290,7 +290,7 @@ void page_table_free_rcu(struct mmu_gather *tlb, unsigned long *table, tlb_remove_table(tlb, table); } -static void __tlb_remove_table(void *_table) +void __tlb_remove_table(void *_table) { unsigned int mask = (unsigned long) _table & 3; void *table = (void *)((unsigned long) _table ^ mask); @@ -316,67 +316,6 @@ static void __tlb_remove_table(void *_table) } } -static void tlb_remove_table_smp_sync(void *arg) -{ - /* Simply deliver the interrupt */ -} - -static void tlb_remove_table_one(void *table) -{ - /* - * This isn't an RCU grace period and hence the page-tables cannot be - * assumed to be actually RCU-freed. - * - * It is however sufficient for software page-table walkers that rely - * on IRQ disabling. See the comment near struct mmu_table_batch. - */ - smp_call_function(tlb_remove_table_smp_sync, NULL, 1); - __tlb_remove_table(table); -} - -static void tlb_remove_table_rcu(struct rcu_head *head) -{ - struct mmu_table_batch *batch; - int i; - - batch = container_of(head, struct mmu_table_batch, rcu); - - for (i = 0; i < batch->nr; i++) - __tlb_remove_table(batch->tables[i]); - - free_page((unsigned long)batch); -} - -void tlb_table_flush(struct mmu_gather *tlb) -{ - struct mmu_table_batch **batch = &tlb->batch; - - if (*batch) { - call_rcu(&(*batch)->rcu, tlb_remove_table_rcu); - *batch = NULL; - } -} - -void tlb_remove_table(struct mmu_gather *tlb, void *table) -{ - struct mmu_table_batch **batch = &tlb->batch; - - tlb->mm->context.flush_mm = 1; - if (*batch == NULL) { - *batch = (struct mmu_table_batch *) - __get_free_page(GFP_NOWAIT | __GFP_NOWARN); - if (*batch == NULL) { - __tlb_flush_mm_lazy(tlb->mm); - tlb_remove_table_one(table); - return; - } - (*batch)->nr = 0; - } - (*batch)->tables[(*batch)->nr++] = table; - if ((*batch)->nr == MAX_TABLE_BATCH) - tlb_flush_mmu(tlb); -} - /* * Base infrastructure required to generate basic asces, region, segment, * and page tables that do not make use of enhanced features like EDAT1. diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index b1c91ea9a958..0be08d586d40 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -90,12 +90,6 @@ config ARCH_DEFCONFIG default "arch/sh/configs/shx3_defconfig" if SUPERH32 default "arch/sh/configs/cayman_defconfig" if SUPERH64 -config RWSEM_GENERIC_SPINLOCK - def_bool y - -config RWSEM_XCHGADD_ALGORITHM - bool - config GENERIC_BUG def_bool y depends on BUG && SUPERH32 diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c index 958f46da3a79..d91065e81a4e 100644 --- a/arch/sh/boards/of-generic.c +++ b/arch/sh/boards/of-generic.c @@ -164,10 +164,10 @@ static struct sh_machine_vector __initmv sh_of_generic_mv = { struct sh_clk_ops; -void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx) +void __init __weak arch_init_clk_ops(struct sh_clk_ops **ops, int idx) { } -void __init plat_irq_setup(void) +void __init __weak plat_irq_setup(void) { } diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild index a6ef3fee5f85..73fff39a0122 100644 --- a/arch/sh/include/asm/Kbuild +++ b/arch/sh/include/asm/Kbuild @@ -9,6 +9,7 @@ generic-y += emergency-restart.h generic-y += exec.h generic-y += irq_regs.h generic-y += irq_work.h +generic-y += kvm_para.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h @@ -16,7 +17,6 @@ generic-y += mm-arch-hooks.h generic-y += parport.h generic-y += percpu.h generic-y += preempt.h -generic-y += rwsem.h generic-y += serial.h generic-y += sizes.h generic-y += trace_clock.h diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h index 8ad73cb31121..b56f908b1395 100644 --- a/arch/sh/include/asm/pgalloc.h +++ b/arch/sh/include/asm/pgalloc.h @@ -70,6 +70,15 @@ do { \ tlb_remove_page((tlb), (pte)); \ } while (0) +#if CONFIG_PGTABLE_LEVELS > 2 +#define __pmd_free_tlb(tlb, pmdp, addr) \ +do { \ + struct page *page = virt_to_page(pmdp); \ + pgtable_pmd_page_dtor(page); \ + tlb_remove_page((tlb), page); \ +} while (0); +#endif + static inline void check_pgt_cache(void) { quicklist_trim(QUICK_PT, NULL, 25, 16); diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h index 6e118799831c..8c9d7e5e5dcc 100644 --- a/arch/sh/include/asm/syscall_32.h +++ b/arch/sh/include/asm/syscall_32.h @@ -48,51 +48,28 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - /* - * Do this simply for now. If we need to start supporting - * fetching arguments from arbitrary indices, this will need some - * extra logic. Presently there are no in-tree users that depend - * on this behaviour. - */ - BUG_ON(i); /* Argument pattern is: R4, R5, R6, R7, R0, R1 */ - switch (n) { - case 6: args[5] = regs->regs[1]; - case 5: args[4] = regs->regs[0]; - case 4: args[3] = regs->regs[7]; - case 3: args[2] = regs->regs[6]; - case 2: args[1] = regs->regs[5]; - case 1: args[0] = regs->regs[4]; - case 0: - break; - default: - BUG(); - } + args[5] = regs->regs[1]; + args[4] = regs->regs[0]; + args[3] = regs->regs[7]; + args[2] = regs->regs[6]; + args[1] = regs->regs[5]; + args[0] = regs->regs[4]; } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - /* Same note as above applies */ - BUG_ON(i); - - switch (n) { - case 6: regs->regs[1] = args[5]; - case 5: regs->regs[0] = args[4]; - case 4: regs->regs[7] = args[3]; - case 3: regs->regs[6] = args[2]; - case 2: regs->regs[5] = args[1]; - case 1: regs->regs[4] = args[0]; - break; - default: - BUG(); - } + regs->regs[1] = args[5]; + regs->regs[0] = args[4]; + regs->regs[7] = args[3]; + regs->regs[6] = args[2]; + regs->regs[5] = args[1]; + regs->regs[4] = args[0]; } static inline int syscall_get_arch(void) diff --git a/arch/sh/include/asm/syscall_64.h b/arch/sh/include/asm/syscall_64.h index 43882580c7f9..22fad97da066 100644 --- a/arch/sh/include/asm/syscall_64.h +++ b/arch/sh/include/asm/syscall_64.h @@ -47,20 +47,16 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - memcpy(args, ®s->regs[2 + i], n * sizeof(args[0])); + memcpy(args, ®s->regs[2], 6 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - BUG_ON(i + n > 6); - memcpy(®s->regs[2 + i], args, n * sizeof(args[0])); + memcpy(®s->regs[2], args, 6 * sizeof(args[0])); } static inline int syscall_get_arch(void) diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h index 77abe192fb43..bc77f3dd4261 100644 --- a/arch/sh/include/asm/tlb.h +++ b/arch/sh/include/asm/tlb.h @@ -11,133 +11,8 @@ #ifdef CONFIG_MMU #include <linux/swap.h> -#include <asm/pgalloc.h> -#include <asm/tlbflush.h> -#include <asm/mmu_context.h> -/* - * TLB handling. This allows us to remove pages from the page - * tables, and efficiently handle the TLB issues. - */ -struct mmu_gather { - struct mm_struct *mm; - unsigned int fullmm; - unsigned long start, end; -}; - -static inline void init_tlb_gather(struct mmu_gather *tlb) -{ - tlb->start = TASK_SIZE; - tlb->end = 0; - - if (tlb->fullmm) { - tlb->start = 0; - tlb->end = TASK_SIZE; - } -} - -static inline void -arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, - unsigned long start, unsigned long end) -{ - tlb->mm = mm; - tlb->start = start; - tlb->end = end; - tlb->fullmm = !(start | (end+1)); - - init_tlb_gather(tlb); -} - -static inline void -arch_tlb_finish_mmu(struct mmu_gather *tlb, - unsigned long start, unsigned long end, bool force) -{ - if (tlb->fullmm || force) - flush_tlb_mm(tlb->mm); - - /* keep the page table cache within bounds */ - check_pgt_cache(); -} - -static inline void -tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, unsigned long address) -{ - if (tlb->start > address) - tlb->start = address; - if (tlb->end < address + PAGE_SIZE) - tlb->end = address + PAGE_SIZE; -} - -#define tlb_remove_huge_tlb_entry(h, tlb, ptep, address) \ - tlb_remove_tlb_entry(tlb, ptep, address) - -/* - * In the case of tlb vma handling, we can optimise these away in the - * case where we're doing a full MM flush. When we're doing a munmap, - * the vmas are adjusted to only cover the region to be torn down. - */ -static inline void -tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) -{ - if (!tlb->fullmm) - flush_cache_range(vma, vma->vm_start, vma->vm_end); -} - -static inline void -tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) -{ - if (!tlb->fullmm && tlb->end) { - flush_tlb_range(vma, tlb->start, tlb->end); - init_tlb_gather(tlb); - } -} - -static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) -{ -} - -static inline void tlb_flush_mmu_free(struct mmu_gather *tlb) -{ -} - -static inline void tlb_flush_mmu(struct mmu_gather *tlb) -{ -} - -static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - free_page_and_swap_cache(page); - return false; /* avoid calling tlb_flush_mmu */ -} - -static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - __tlb_remove_page(tlb, page); -} - -static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return __tlb_remove_page(tlb, page); -} - -static inline void tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return tlb_remove_page(tlb, page); -} - -#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change -static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, - unsigned int page_size) -{ -} - -#define pte_free_tlb(tlb, ptep, addr) pte_free((tlb)->mm, ptep) -#define pmd_free_tlb(tlb, pmdp, addr) pmd_free((tlb)->mm, pmdp) -#define pud_free_tlb(tlb, pudp, addr) pud_free((tlb)->mm, pudp) - -#define tlb_migrate_finish(mm) do { } while (0) +#include <asm-generic/tlb.h> #if defined(CONFIG_CPU_SH4) || defined(CONFIG_SUPERH64) extern void tlb_wire_entry(struct vm_area_struct *, unsigned long, pte_t); @@ -157,11 +32,6 @@ static inline void tlb_unwire_entry(void) #else /* CONFIG_MMU */ -#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, address) do { } while (0) -#define tlb_flush(tlb) do { } while (0) - #include <asm-generic/tlb.h> #endif /* CONFIG_MMU */ diff --git a/arch/sh/include/uapi/asm/Kbuild b/arch/sh/include/uapi/asm/Kbuild index ecfbd40924dd..b8812c74c1de 100644 --- a/arch/sh/include/uapi/asm/Kbuild +++ b/arch/sh/include/uapi/asm/Kbuild @@ -1,5 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 generated-y += unistd_32.h -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/sh/kernel/stacktrace.c b/arch/sh/kernel/stacktrace.c index f3cb2cccb262..2950b19ad077 100644 --- a/arch/sh/kernel/stacktrace.c +++ b/arch/sh/kernel/stacktrace.c @@ -49,8 +49,6 @@ void save_stack_trace(struct stack_trace *trace) unsigned long *sp = (unsigned long *)current_stack_pointer; unwind_stack(current, NULL, sp, &save_stack_ops, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace); @@ -84,7 +82,5 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) unsigned long *sp = (unsigned long *)tsk->thread.sp; unwind_stack(current, NULL, sp, &save_stack_ops_nosched, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } EXPORT_SYMBOL_GPL(save_stack_trace_tsk); diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl index bfda678576e4..480b057556ee 100644 --- a/arch/sh/kernel/syscalls/syscall.tbl +++ b/arch/sh/kernel/syscalls/syscall.tbl @@ -426,3 +426,7 @@ 421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait 422 common futex_time64 sys_futex 423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 40f8f4f73fe8..f6421c9ce5d3 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -63,6 +63,7 @@ config SPARC64 select HAVE_KRETPROBES select HAVE_KPROBES select HAVE_RCU_TABLE_FREE if SMP + select HAVE_RCU_TABLE_NO_INVALIDATE if HAVE_RCU_TABLE_FREE select HAVE_MEMBLOCK_NODE_MAP select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_DYNAMIC_FTRACE @@ -191,14 +192,6 @@ config NR_CPUS source "kernel/Kconfig.hz" -config RWSEM_GENERIC_SPINLOCK - bool - default y if SPARC32 - -config RWSEM_XCHGADD_ALGORITHM - bool - default y if SPARC64 - config GENERIC_HWEIGHT bool default y diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild index b82f64e28f55..2ca3200d3616 100644 --- a/arch/sparc/include/asm/Kbuild +++ b/arch/sparc/include/asm/Kbuild @@ -9,6 +9,7 @@ generic-y += exec.h generic-y += export.h generic-y += irq_regs.h generic-y += irq_work.h +generic-y += kvm_para.h generic-y += linkage.h generic-y += local.h generic-y += local64.h @@ -17,7 +18,6 @@ generic-y += mm-arch-hooks.h generic-y += module.h generic-y += msi.h generic-y += preempt.h -generic-y += rwsem.h generic-y += serial.h generic-y += trace_clock.h generic-y += word-at-a-time.h diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h index 053989e3f6a6..4d075434e816 100644 --- a/arch/sparc/include/asm/syscall.h +++ b/arch/sparc/include/asm/syscall.h @@ -96,11 +96,11 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { int zero_extend = 0; unsigned int j; + unsigned int n = 6; #ifdef CONFIG_SPARC64 if (test_tsk_thread_flag(task, TIF_32BIT)) @@ -108,7 +108,7 @@ static inline void syscall_get_arguments(struct task_struct *task, #endif for (j = 0; j < n; j++) { - unsigned long val = regs->u_regs[UREG_I0 + i + j]; + unsigned long val = regs->u_regs[UREG_I0 + j]; if (zero_extend) args[j] = (u32) val; @@ -119,13 +119,12 @@ static inline void syscall_get_arguments(struct task_struct *task, static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - unsigned int j; + unsigned int i; - for (j = 0; j < n; j++) - regs->u_regs[UREG_I0 + i + j] = args[j]; + for (i = 0; i < 6; i++) + regs->u_regs[UREG_I0 + i] = args[i]; } static inline int syscall_get_arch(void) diff --git a/arch/sparc/include/asm/tlb_32.h b/arch/sparc/include/asm/tlb_32.h index 343cea19e573..5cd28a8793e3 100644 --- a/arch/sparc/include/asm/tlb_32.h +++ b/arch/sparc/include/asm/tlb_32.h @@ -2,24 +2,6 @@ #ifndef _SPARC_TLB_H #define _SPARC_TLB_H -#define tlb_start_vma(tlb, vma) \ -do { \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define tlb_end_vma(tlb, vma) \ -do { \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ -} while (0) - -#define __tlb_remove_tlb_entry(tlb, pte, address) \ - do { } while (0) - -#define tlb_flush(tlb) \ -do { \ - flush_tlb_mm((tlb)->mm); \ -} while (0) - #include <asm-generic/tlb.h> #endif /* _SPARC_TLB_H */ diff --git a/arch/sparc/include/uapi/asm/kvm_para.h b/arch/sparc/include/uapi/asm/kvm_para.h deleted file mode 100644 index baacc4996d18..000000000000 --- a/arch/sparc/include/uapi/asm/kvm_para.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/kvm_para.h> diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index a8af6023c126..14b93c5564e3 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -73,6 +73,11 @@ static inline void iommu_batch_start(struct device *dev, unsigned long prot, uns p->npages = 0; } +static inline bool iommu_use_atu(struct iommu *iommu, u64 mask) +{ + return iommu->atu && mask > DMA_BIT_MASK(32); +} + /* Interrupts must be disabled. */ static long iommu_batch_flush(struct iommu_batch *p, u64 mask) { @@ -92,7 +97,7 @@ static long iommu_batch_flush(struct iommu_batch *p, u64 mask) prot &= (HV_PCI_MAP_ATTR_READ | HV_PCI_MAP_ATTR_WRITE); while (npages != 0) { - if (mask <= DMA_BIT_MASK(32) || !pbm->iommu->atu) { + if (!iommu_use_atu(pbm->iommu, mask)) { num = pci_sun4v_iommu_map(devhandle, HV_PCI_TSBID(0, entry), npages, @@ -179,7 +184,6 @@ static void *dma_4v_alloc_coherent(struct device *dev, size_t size, unsigned long flags, order, first_page, npages, n; unsigned long prot = 0; struct iommu *iommu; - struct atu *atu; struct iommu_map_table *tbl; struct page *page; void *ret; @@ -205,13 +209,11 @@ static void *dma_4v_alloc_coherent(struct device *dev, size_t size, memset((char *)first_page, 0, PAGE_SIZE << order); iommu = dev->archdata.iommu; - atu = iommu->atu; - mask = dev->coherent_dma_mask; - if (mask <= DMA_BIT_MASK(32) || !atu) + if (!iommu_use_atu(iommu, mask)) tbl = &iommu->tbl; else - tbl = &atu->tbl; + tbl = &iommu->atu->tbl; entry = iommu_tbl_range_alloc(dev, tbl, npages, NULL, (unsigned long)(-1), 0); @@ -333,7 +335,7 @@ static void dma_4v_free_coherent(struct device *dev, size_t size, void *cpu, atu = iommu->atu; devhandle = pbm->devhandle; - if (dvma <= DMA_BIT_MASK(32)) { + if (!iommu_use_atu(iommu, dvma)) { tbl = &iommu->tbl; iotsb_num = 0; /* we don't care for legacy iommu */ } else { @@ -374,7 +376,7 @@ static dma_addr_t dma_4v_map_page(struct device *dev, struct page *page, npages >>= IO_PAGE_SHIFT; mask = *dev->dma_mask; - if (mask <= DMA_BIT_MASK(32)) + if (!iommu_use_atu(iommu, mask)) tbl = &iommu->tbl; else tbl = &atu->tbl; @@ -510,7 +512,7 @@ static int dma_4v_map_sg(struct device *dev, struct scatterlist *sglist, IO_PAGE_SIZE) >> IO_PAGE_SHIFT; mask = *dev->dma_mask; - if (mask <= DMA_BIT_MASK(32)) + if (!iommu_use_atu(iommu, mask)) tbl = &iommu->tbl; else tbl = &atu->tbl; diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index b9a5a04b2d2c..a1dd24307b00 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -469,3 +469,7 @@ 421 32 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 422 32 futex_time64 sys_futex sys_futex 423 32 sched_rr_get_interval_time64 sys_sched_rr_get_interval sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/um/include/asm/syscall-generic.h b/arch/um/include/asm/syscall-generic.h index 9fb9cf8cd39a..98e50c50c12e 100644 --- a/arch/um/include/asm/syscall-generic.h +++ b/arch/um/include/asm/syscall-generic.h @@ -53,84 +53,30 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { const struct uml_pt_regs *r = ®s->regs; - switch (i) { - case 0: - if (!n--) - break; - *args++ = UPT_SYSCALL_ARG1(r); - case 1: - if (!n--) - break; - *args++ = UPT_SYSCALL_ARG2(r); - case 2: - if (!n--) - break; - *args++ = UPT_SYSCALL_ARG3(r); - case 3: - if (!n--) - break; - *args++ = UPT_SYSCALL_ARG4(r); - case 4: - if (!n--) - break; - *args++ = UPT_SYSCALL_ARG5(r); - case 5: - if (!n--) - break; - *args++ = UPT_SYSCALL_ARG6(r); - case 6: - if (!n--) - break; - default: - BUG(); - break; - } + *args++ = UPT_SYSCALL_ARG1(r); + *args++ = UPT_SYSCALL_ARG2(r); + *args++ = UPT_SYSCALL_ARG3(r); + *args++ = UPT_SYSCALL_ARG4(r); + *args++ = UPT_SYSCALL_ARG5(r); + *args = UPT_SYSCALL_ARG6(r); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { struct uml_pt_regs *r = ®s->regs; - switch (i) { - case 0: - if (!n--) - break; - UPT_SYSCALL_ARG1(r) = *args++; - case 1: - if (!n--) - break; - UPT_SYSCALL_ARG2(r) = *args++; - case 2: - if (!n--) - break; - UPT_SYSCALL_ARG3(r) = *args++; - case 3: - if (!n--) - break; - UPT_SYSCALL_ARG4(r) = *args++; - case 4: - if (!n--) - break; - UPT_SYSCALL_ARG5(r) = *args++; - case 5: - if (!n--) - break; - UPT_SYSCALL_ARG6(r) = *args++; - case 6: - if (!n--) - break; - default: - BUG(); - break; - } + UPT_SYSCALL_ARG1(r) = *args++; + UPT_SYSCALL_ARG2(r) = *args++; + UPT_SYSCALL_ARG3(r) = *args++; + UPT_SYSCALL_ARG4(r) = *args++; + UPT_SYSCALL_ARG5(r) = *args++; + UPT_SYSCALL_ARG6(r) = *args; } /* See arch/x86/um/asm/syscall.h for syscall_get_arch() definition. */ diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h index dce6db147f24..70ee60383900 100644 --- a/arch/um/include/asm/tlb.h +++ b/arch/um/include/asm/tlb.h @@ -2,162 +2,8 @@ #ifndef __UM_TLB_H #define __UM_TLB_H -#include <linux/pagemap.h> -#include <linux/swap.h> -#include <asm/percpu.h> -#include <asm/pgalloc.h> #include <asm/tlbflush.h> - -#define tlb_start_vma(tlb, vma) do { } while (0) -#define tlb_end_vma(tlb, vma) do { } while (0) -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) - -/* struct mmu_gather is an opaque type used by the mm code for passing around - * any data needed by arch specific code for tlb_remove_page. - */ -struct mmu_gather { - struct mm_struct *mm; - unsigned int need_flush; /* Really unmapped some ptes? */ - unsigned long start; - unsigned long end; - unsigned int fullmm; /* non-zero means full mm flush */ -}; - -static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, - unsigned long address) -{ - if (tlb->start > address) - tlb->start = address; - if (tlb->end < address + PAGE_SIZE) - tlb->end = address + PAGE_SIZE; -} - -static inline void init_tlb_gather(struct mmu_gather *tlb) -{ - tlb->need_flush = 0; - - tlb->start = TASK_SIZE; - tlb->end = 0; - - if (tlb->fullmm) { - tlb->start = 0; - tlb->end = TASK_SIZE; - } -} - -static inline void -arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, - unsigned long start, unsigned long end) -{ - tlb->mm = mm; - tlb->start = start; - tlb->end = end; - tlb->fullmm = !(start | (end+1)); - - init_tlb_gather(tlb); -} - -extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, - unsigned long end); - -static inline void -tlb_flush_mmu_tlbonly(struct mmu_gather *tlb) -{ - flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end); -} - -static inline void -tlb_flush_mmu_free(struct mmu_gather *tlb) -{ - init_tlb_gather(tlb); -} - -static inline void -tlb_flush_mmu(struct mmu_gather *tlb) -{ - if (!tlb->need_flush) - return; - - tlb_flush_mmu_tlbonly(tlb); - tlb_flush_mmu_free(tlb); -} - -/* arch_tlb_finish_mmu - * Called at the end of the shootdown operation to free up any resources - * that were required. - */ -static inline void -arch_tlb_finish_mmu(struct mmu_gather *tlb, - unsigned long start, unsigned long end, bool force) -{ - if (force) { - tlb->start = start; - tlb->end = end; - tlb->need_flush = 1; - } - tlb_flush_mmu(tlb); - - /* keep the page table cache within bounds */ - check_pgt_cache(); -} - -/* tlb_remove_page - * Must perform the equivalent to __free_pte(pte_get_and_clear(ptep)), - * while handling the additional races in SMP caused by other CPUs - * caching valid mappings in their TLBs. - */ -static inline int __tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - tlb->need_flush = 1; - free_page_and_swap_cache(page); - return false; /* avoid calling tlb_flush_mmu */ -} - -static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) -{ - __tlb_remove_page(tlb, page); -} - -static inline bool __tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return __tlb_remove_page(tlb, page); -} - -static inline void tlb_remove_page_size(struct mmu_gather *tlb, - struct page *page, int page_size) -{ - return tlb_remove_page(tlb, page); -} - -/** - * tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation. - * - * Record the fact that pte's were really umapped in ->need_flush, so we can - * later optimise away the tlb invalidate. This helps when userspace is - * unmapping already-unmapped pages, which happens quite a lot. - */ -#define tlb_remove_tlb_entry(tlb, ptep, address) \ - do { \ - tlb->need_flush = 1; \ - __tlb_remove_tlb_entry(tlb, ptep, address); \ - } while (0) - -#define tlb_remove_huge_tlb_entry(h, tlb, ptep, address) \ - tlb_remove_tlb_entry(tlb, ptep, address) - -#define tlb_remove_check_page_size_change tlb_remove_check_page_size_change -static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, - unsigned int page_size) -{ -} - -#define pte_free_tlb(tlb, ptep, addr) __pte_free_tlb(tlb, ptep, addr) - -#define pud_free_tlb(tlb, pudp, addr) __pud_free_tlb(tlb, pudp, addr) - -#define pmd_free_tlb(tlb, pmdp, addr) __pmd_free_tlb(tlb, pmdp, addr) - -#define tlb_migrate_finish(mm) do {} while (0) +#include <asm-generic/cacheflush.h> +#include <asm-generic/tlb.h> #endif diff --git a/arch/um/kernel/stacktrace.c b/arch/um/kernel/stacktrace.c index ebe7bcf62684..bd95e020d509 100644 --- a/arch/um/kernel/stacktrace.c +++ b/arch/um/kernel/stacktrace.c @@ -63,8 +63,6 @@ static const struct stacktrace_ops dump_ops = { static void __save_stack_trace(struct task_struct *tsk, struct stack_trace *trace) { dump_trace(tsk, &dump_ops, trace); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } void save_stack_trace(struct stack_trace *trace) diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 817d82608712..2445dfcf6444 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -20,6 +20,7 @@ config UNICORE32 select GENERIC_IOMAP select MODULES_USE_ELF_REL select NEED_DMA_MAP_STATE + select MMU_GATHER_NO_RANGE if MMU help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip @@ -38,12 +39,6 @@ config STACKTRACE_SUPPORT config LOCKDEP_SUPPORT def_bool y -config RWSEM_GENERIC_SPINLOCK - def_bool y - -config RWSEM_XCHGADD_ALGORITHM - bool - config ARCH_HAS_ILOG2_U32 bool diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild index 1d1544b6ca74..d77d953c04c1 100644 --- a/arch/unicore32/include/asm/Kbuild +++ b/arch/unicore32/include/asm/Kbuild @@ -18,6 +18,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += mcs_spinlock.h generic-y += mm-arch-hooks.h diff --git a/arch/unicore32/include/asm/tlb.h b/arch/unicore32/include/asm/tlb.h index 9cca15cdae94..00a8477333f6 100644 --- a/arch/unicore32/include/asm/tlb.h +++ b/arch/unicore32/include/asm/tlb.h @@ -12,10 +12,9 @@ #ifndef __UNICORE_TLB_H__ #define __UNICORE_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, ptep, address) do { } while (0) -#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) +/* + * unicore32 lacks an efficient flush_tlb_range(), use flush_tlb_mm(). + */ #define __pte_free_tlb(tlb, pte, addr) \ do { \ diff --git a/arch/unicore32/include/uapi/asm/Kbuild b/arch/unicore32/include/uapi/asm/Kbuild index 755bb11323d8..1c72f04ff75d 100644 --- a/arch/unicore32/include/uapi/asm/Kbuild +++ b/arch/unicore32/include/uapi/asm/Kbuild @@ -1,2 +1 @@ -generic-y += kvm_para.h generic-y += ucontext.h diff --git a/arch/unicore32/kernel/stacktrace.c b/arch/unicore32/kernel/stacktrace.c index 9976e767d51c..e37da8c6837b 100644 --- a/arch/unicore32/kernel/stacktrace.c +++ b/arch/unicore32/kernel/stacktrace.c @@ -120,8 +120,6 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) } walk_stackframe(&frame, save_trace, &data); - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } void save_stack_trace(struct stack_trace *trace) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c1f9b3cf437c..7e59efc70b91 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -28,7 +28,6 @@ config X86_64 select MODULES_USE_ELF_RELA select NEED_DMA_MAP_STATE select SWIOTLB - select X86_DEV_DMA_OPS select ARCH_HAS_SYSCALL_WRAPPER # @@ -74,6 +73,7 @@ config X86 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO + select ARCH_STACKWALK select ARCH_SUPPORTS_ACPI select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_NUMA_BALANCING if X86_64 @@ -183,7 +183,6 @@ config X86 select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP select HAVE_RCU_TABLE_FREE if PARAVIRT - select HAVE_RCU_TABLE_INVALIDATE if HAVE_RCU_TABLE_FREE select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RELIABLE_STACKTRACE if X86_64 && (UNWINDER_FRAME_POINTER || UNWINDER_ORC) && STACK_VALIDATION select HAVE_FUNCTION_ARG_ACCESS_API @@ -268,9 +267,6 @@ config ARCH_MAY_HAVE_PC_FDC def_bool y depends on ISA_DMA_API -config RWSEM_XCHGADD_ALGORITHM - def_bool y - config GENERIC_CALIBRATE_DELAY def_bool y @@ -703,8 +699,6 @@ config STA2X11 bool "STA2X11 Companion Chip Support" depends on X86_32_NON_STANDARD && PCI select ARCH_HAS_PHYS_TO_DMA - select X86_DEV_DMA_OPS - select X86_DMA_REMAP select SWIOTLB select MFD_STA2X11 select GPIOLIB @@ -783,14 +777,6 @@ config PARAVIRT_SPINLOCKS If you are unsure how to answer this question, answer Y. -config QUEUED_LOCK_STAT - bool "Paravirt queued spinlock statistics" - depends on PARAVIRT_SPINLOCKS && DEBUG_FS - ---help--- - Enable the collection of statistical data on the slowpath - behavior of paravirtualized queued spinlocks and report - them on debugfs. - source "arch/x86/xen/Kconfig" config KVM_GUEST @@ -1499,7 +1485,7 @@ config X86_CPA_STATISTICS depends on DEBUG_FS ---help--- Expose statistics about the Change Page Attribute mechanims, which - helps to determine the effectivness of preserving large and huge + helps to determine the effectiveness of preserving large and huge page mappings when mapping protections are changed. config ARCH_HAS_MEM_ENCRYPT @@ -2217,14 +2203,8 @@ config RANDOMIZE_MEMORY_PHYSICAL_PADDING If unsure, leave at the default value. config HOTPLUG_CPU - bool "Support for hot-pluggable CPUs" + def_bool y depends on SMP - ---help--- - Say Y here to allow turning CPUs off and on. CPUs can be - controlled through /sys/devices/system/cpu. - ( Note: power management support will enable this option - automatically on SMP systems. ) - Say N if you want to disable CPU hotplug. config BOOTPARAM_HOTPLUG_CPU0 bool "Set default setting of cpu0_hotpluggable" @@ -2884,11 +2864,6 @@ config HAVE_ATOMIC_IOMAP config X86_DEV_DMA_OPS bool - depends on X86_64 || STA2X11 - -config X86_DMA_REMAP - bool - depends on STA2X11 config HAVE_GENERIC_GUP def_bool y diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 2d8b9d8ca4f8..56e748a7679f 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -47,7 +47,7 @@ export REALMODE_CFLAGS export BITS ifdef CONFIG_X86_NEED_RELOCS - LDFLAGS_vmlinux := --emit-relocs + LDFLAGS_vmlinux := --emit-relocs --discard-none endif # @@ -219,8 +219,12 @@ ifdef CONFIG_RETPOLINE # Additionally, avoid generating expensive indirect jumps which # are subject to retpolines for small number of switch cases. # clang turns off jump table generation by default when under - # retpoline builds, however, gcc does not for x86. - KBUILD_CFLAGS += $(call cc-option,--param=case-values-threshold=20) + # retpoline builds, however, gcc does not for x86. This has + # only been fixed starting from gcc stable version 8.4.0 and + # onwards, but not for older ones. See gcc bug #86952. + ifndef CONFIG_CC_IS_CLANG + KBUILD_CFLAGS += $(call cc-option,-fno-jump-tables) + endif endif archscripts: scripts_basic diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c index c0d6c560df69..5a237e8dbf8d 100644 --- a/arch/x86/boot/compressed/misc.c +++ b/arch/x86/boot/compressed/misc.c @@ -352,7 +352,7 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap, boot_params->hdr.loadflags &= ~KASLR_FLAG; /* Save RSDP address for later use. */ - boot_params->acpi_rsdp_addr = get_rsdp_addr(); + /* boot_params->acpi_rsdp_addr = get_rsdp_addr(); */ sanitize_boot_params(boot_params); diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index fd13655e0f9b..d2f184165934 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -120,8 +120,6 @@ static inline void console_init(void) void set_sev_encryption_mask(void); -#endif - /* acpi.c */ #ifdef CONFIG_ACPI acpi_physical_address get_rsdp_addr(void); @@ -135,3 +133,5 @@ int count_immovable_mem_regions(void); #else static inline int count_immovable_mem_regions(void) { return 0; } #endif + +#endif /* BOOT_COMPRESSED_MISC_H */ diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c index 315a67b8896b..90154df8f125 100644 --- a/arch/x86/boot/string.c +++ b/arch/x86/boot/string.c @@ -13,8 +13,9 @@ */ #include <linux/types.h> -#include <linux/kernel.h> +#include <linux/compiler.h> #include <linux/errno.h> +#include <linux/limits.h> #include <asm/asm.h> #include "ctype.h" #include "string.h" diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig index 9f908112bbb9..2b2481acc661 100644 --- a/arch/x86/configs/i386_defconfig +++ b/arch/x86/configs/i386_defconfig @@ -25,18 +25,6 @@ CONFIG_JUMP_LABEL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y -CONFIG_PARTITION_ADVANCED=y -CONFIG_OSF_PARTITION=y -CONFIG_AMIGA_PARTITION=y -CONFIG_MAC_PARTITION=y -CONFIG_BSD_DISKLABEL=y -CONFIG_MINIX_SUBPARTITION=y -CONFIG_SOLARIS_X86_PARTITION=y -CONFIG_UNIXWARE_DISKLABEL=y -CONFIG_SGI_PARTITION=y -CONFIG_SUN_PARTITION=y -CONFIG_KARMA_PARTITION=y -CONFIG_EFI_PARTITION=y CONFIG_SMP=y CONFIG_X86_GENERIC=y CONFIG_HPET_TIMER=y diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig index 1d3badfda09e..e8829abf063a 100644 --- a/arch/x86/configs/x86_64_defconfig +++ b/arch/x86/configs/x86_64_defconfig @@ -24,18 +24,6 @@ CONFIG_JUMP_LABEL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y -CONFIG_PARTITION_ADVANCED=y -CONFIG_OSF_PARTITION=y -CONFIG_AMIGA_PARTITION=y -CONFIG_MAC_PARTITION=y -CONFIG_BSD_DISKLABEL=y -CONFIG_MINIX_SUBPARTITION=y -CONFIG_SOLARIS_X86_PARTITION=y -CONFIG_UNIXWARE_DISKLABEL=y -CONFIG_SGI_PARTITION=y -CONFIG_SUN_PARTITION=y -CONFIG_KARMA_PARTITION=y -CONFIG_EFI_PARTITION=y CONFIG_SMP=y CONFIG_CALGARY_IOMMU=y CONFIG_NR_CPUS=64 diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S index 3b6e70d085da..8457cdd47f75 100644 --- a/arch/x86/crypto/poly1305-avx2-x86_64.S +++ b/arch/x86/crypto/poly1305-avx2-x86_64.S @@ -323,6 +323,12 @@ ENTRY(poly1305_4block_avx2) vpaddq t2,t1,t1 vmovq t1x,d4 + # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 -> + # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small + # amount. Careful: we must not assume the carry bits 'd0 >> 26', + # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit + # integers. It's true in a single-block implementation, but not here. + # d1 += d0 >> 26 mov d0,%rax shr $26,%rax @@ -361,16 +367,16 @@ ENTRY(poly1305_4block_avx2) # h0 += (d4 >> 26) * 5 mov d4,%rax shr $26,%rax - lea (%eax,%eax,4),%eax - add %eax,%ebx + lea (%rax,%rax,4),%rax + add %rax,%rbx # h4 = d4 & 0x3ffffff mov d4,%rax and $0x3ffffff,%eax mov %eax,h4 # h1 += h0 >> 26 - mov %ebx,%eax - shr $26,%eax + mov %rbx,%rax + shr $26,%rax add %eax,h1 # h0 = h0 & 0x3ffffff andl $0x3ffffff,%ebx diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S index e6add74d78a5..6f0be7a86964 100644 --- a/arch/x86/crypto/poly1305-sse2-x86_64.S +++ b/arch/x86/crypto/poly1305-sse2-x86_64.S @@ -253,16 +253,16 @@ ENTRY(poly1305_block_sse2) # h0 += (d4 >> 26) * 5 mov d4,%rax shr $26,%rax - lea (%eax,%eax,4),%eax - add %eax,%ebx + lea (%rax,%rax,4),%rax + add %rax,%rbx # h4 = d4 & 0x3ffffff mov d4,%rax and $0x3ffffff,%eax mov %eax,h4 # h1 += h0 >> 26 - mov %ebx,%eax - shr $26,%eax + mov %rbx,%rax + shr $26,%rax add %eax,h1 # h0 = h0 & 0x3ffffff andl $0x3ffffff,%ebx @@ -524,6 +524,12 @@ ENTRY(poly1305_2block_sse2) paddq t2,t1 movq t1,d4 + # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 -> + # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small + # amount. Careful: we must not assume the carry bits 'd0 >> 26', + # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit + # integers. It's true in a single-block implementation, but not here. + # d1 += d0 >> 26 mov d0,%rax shr $26,%rax @@ -562,16 +568,16 @@ ENTRY(poly1305_2block_sse2) # h0 += (d4 >> 26) * 5 mov d4,%rax shr $26,%rax - lea (%eax,%eax,4),%eax - add %eax,%ebx + lea (%rax,%rax,4),%rax + add %rax,%rbx # h4 = d4 & 0x3ffffff mov d4,%rax and $0x3ffffff,%eax mov %eax,h4 # h1 += h0 >> 26 - mov %ebx,%eax - shr $26,%eax + mov %rbx,%rax + shr $26,%rax add %eax,h1 # h0 = h0 & 0x3ffffff andl $0x3ffffff,%ebx diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index d309f30cf7af..5fc76b755510 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -650,6 +650,7 @@ ENTRY(__switch_to_asm) pushl %ebx pushl %edi pushl %esi + pushfl /* switch stack */ movl %esp, TASK_threadsp(%eax) @@ -672,6 +673,7 @@ ENTRY(__switch_to_asm) #endif /* restore callee-saved registers */ + popfl popl %esi popl %edi popl %ebx diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile index 5bfe2243a08f..42fe42e82baf 100644 --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -116,7 +116,7 @@ $(obj)/%-x32.o: $(obj)/%.o FORCE targets += vdsox32.lds $(vobjx32s-y) $(obj)/%.so: OBJCOPYFLAGS := -S -$(obj)/%.so: $(obj)/%.so.dbg +$(obj)/%.so: $(obj)/%.so.dbg FORCE $(call if_changed,objcopy) $(obj)/vdsox32.so.dbg: $(obj)/vdsox32.lds $(vobjx32s) FORCE diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c index 007b3fe9d727..98c7d12b945c 100644 --- a/arch/x86/entry/vdso/vclock_gettime.c +++ b/arch/x86/entry/vdso/vclock_gettime.c @@ -29,12 +29,12 @@ extern int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz); extern time_t __vdso_time(time_t *t); #ifdef CONFIG_PARAVIRT_CLOCK -extern u8 pvclock_page +extern u8 pvclock_page[PAGE_SIZE] __attribute__((visibility("hidden"))); #endif #ifdef CONFIG_HYPERV_TSCPAGE -extern u8 hvclock_page +extern u8 hvclock_page[PAGE_SIZE] __attribute__((visibility("hidden"))); #endif diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h index fa847a620f40..a20b134de2a8 100644 --- a/arch/x86/entry/vdso/vdso2c.h +++ b/arch/x86/entry/vdso/vdso2c.h @@ -7,7 +7,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, void *stripped_addr, size_t stripped_len, - FILE *outfile, const char *name) + FILE *outfile, const char *image_name) { int found_load = 0; unsigned long load_size = -1; /* Work around bogus warning */ @@ -93,11 +93,12 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, int k; ELF(Sym) *sym = raw_addr + GET_LE(&symtab_hdr->sh_offset) + GET_LE(&symtab_hdr->sh_entsize) * i; - const char *name = raw_addr + GET_LE(&strtab_hdr->sh_offset) + - GET_LE(&sym->st_name); + const char *sym_name = raw_addr + + GET_LE(&strtab_hdr->sh_offset) + + GET_LE(&sym->st_name); for (k = 0; k < NSYMS; k++) { - if (!strcmp(name, required_syms[k].name)) { + if (!strcmp(sym_name, required_syms[k].name)) { if (syms[k]) { fail("duplicate symbol %s\n", required_syms[k].name); @@ -134,7 +135,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, if (syms[sym_vvar_start] % 4096) fail("vvar_begin must be a multiple of 4096\n"); - if (!name) { + if (!image_name) { fwrite(stripped_addr, stripped_len, 1, outfile); return; } @@ -157,7 +158,7 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len, } fprintf(outfile, "\n};\n\n"); - fprintf(outfile, "const struct vdso_image %s = {\n", name); + fprintf(outfile, "const struct vdso_image %s = {\n", image_name); fprintf(outfile, "\t.data = raw_data,\n"); fprintf(outfile, "\t.size = %lu,\n", mapping_size); if (alt_sec) { diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c index 7d2d7c801dba..f15441b07dad 100644 --- a/arch/x86/events/amd/core.c +++ b/arch/x86/events/amd/core.c @@ -3,10 +3,14 @@ #include <linux/types.h> #include <linux/init.h> #include <linux/slab.h> +#include <linux/delay.h> #include <asm/apicdef.h> +#include <asm/nmi.h> #include "../perf_event.h" +static DEFINE_PER_CPU(unsigned int, perf_nmi_counter); + static __initconst const u64 amd_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] @@ -112,23 +116,144 @@ static __initconst const u64 amd_hw_cache_event_ids }, }; +static __initconst const u64 amd_hw_cache_event_ids_f17h + [PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX] = { +[C(L1D)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0x0040, /* Data Cache Accesses */ + [C(RESULT_MISS)] = 0xc860, /* L2$ access from DC Miss */ + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = 0xff5a, /* h/w prefetch DC Fills */ + [C(RESULT_MISS)] = 0, + }, +}, +[C(L1I)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0x0080, /* Instruction cache fetches */ + [C(RESULT_MISS)] = 0x0081, /* Instruction cache misses */ + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, +}, +[C(LL)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, +}, +[C(DTLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0xff45, /* All L2 DTLB accesses */ + [C(RESULT_MISS)] = 0xf045, /* L2 DTLB misses (PT walks) */ + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, +}, +[C(ITLB)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0x0084, /* L1 ITLB misses, L2 ITLB hits */ + [C(RESULT_MISS)] = 0xff85, /* L1 ITLB misses, L2 misses */ + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, +}, +[C(BPU)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0x00c2, /* Retired Branch Instr. */ + [C(RESULT_MISS)] = 0x00c3, /* Retired Mispredicted BI */ + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, +}, +[C(NODE)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = 0, + [C(RESULT_MISS)] = 0, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = -1, + [C(RESULT_MISS)] = -1, + }, +}, +}; + /* - * AMD Performance Monitor K7 and later. + * AMD Performance Monitor K7 and later, up to and including Family 16h: */ static const u64 amd_perfmon_event_map[PERF_COUNT_HW_MAX] = { - [PERF_COUNT_HW_CPU_CYCLES] = 0x0076, - [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d, - [PERF_COUNT_HW_CACHE_MISSES] = 0x077e, - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, - [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, - [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */ - [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */ + [PERF_COUNT_HW_CPU_CYCLES] = 0x0076, + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d, + [PERF_COUNT_HW_CACHE_MISSES] = 0x077e, + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */ + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */ +}; + +/* + * AMD Performance Monitor Family 17h and later: + */ +static const u64 amd_f17h_perfmon_event_map[PERF_COUNT_HW_MAX] = +{ + [PERF_COUNT_HW_CPU_CYCLES] = 0x0076, + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, + [PERF_COUNT_HW_CACHE_REFERENCES] = 0xff60, + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2, + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3, + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x0287, + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x0187, }; static u64 amd_pmu_event_map(int hw_event) { + if (boot_cpu_data.x86 >= 0x17) + return amd_f17h_perfmon_event_map[hw_event]; + return amd_perfmon_event_map[hw_event]; } @@ -429,6 +554,132 @@ static void amd_pmu_cpu_dead(int cpu) } } +/* + * When a PMC counter overflows, an NMI is used to process the event and + * reset the counter. NMI latency can result in the counter being updated + * before the NMI can run, which can result in what appear to be spurious + * NMIs. This function is intended to wait for the NMI to run and reset + * the counter to avoid possible unhandled NMI messages. + */ +#define OVERFLOW_WAIT_COUNT 50 + +static void amd_pmu_wait_on_overflow(int idx) +{ + unsigned int i; + u64 counter; + + /* + * Wait for the counter to be reset if it has overflowed. This loop + * should exit very, very quickly, but just in case, don't wait + * forever... + */ + for (i = 0; i < OVERFLOW_WAIT_COUNT; i++) { + rdmsrl(x86_pmu_event_addr(idx), counter); + if (counter & (1ULL << (x86_pmu.cntval_bits - 1))) + break; + + /* Might be in IRQ context, so can't sleep */ + udelay(1); + } +} + +static void amd_pmu_disable_all(void) +{ + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + int idx; + + x86_pmu_disable_all(); + + /* + * This shouldn't be called from NMI context, but add a safeguard here + * to return, since if we're in NMI context we can't wait for an NMI + * to reset an overflowed counter value. + */ + if (in_nmi()) + return; + + /* + * Check each counter for overflow and wait for it to be reset by the + * NMI if it has overflowed. This relies on the fact that all active + * counters are always enabled when this function is caled and + * ARCH_PERFMON_EVENTSEL_INT is always set. + */ + for (idx = 0; idx < x86_pmu.num_counters; idx++) { + if (!test_bit(idx, cpuc->active_mask)) + continue; + + amd_pmu_wait_on_overflow(idx); + } +} + +static void amd_pmu_disable_event(struct perf_event *event) +{ + x86_pmu_disable_event(event); + + /* + * This can be called from NMI context (via x86_pmu_stop). The counter + * may have overflowed, but either way, we'll never see it get reset + * by the NMI if we're already in the NMI. And the NMI latency support + * below will take care of any pending NMI that might have been + * generated by the overflow. + */ + if (in_nmi()) + return; + + amd_pmu_wait_on_overflow(event->hw.idx); +} + +/* + * Because of NMI latency, if multiple PMC counters are active or other sources + * of NMIs are received, the perf NMI handler can handle one or more overflowed + * PMC counters outside of the NMI associated with the PMC overflow. If the NMI + * doesn't arrive at the LAPIC in time to become a pending NMI, then the kernel + * back-to-back NMI support won't be active. This PMC handler needs to take into + * account that this can occur, otherwise this could result in unknown NMI + * messages being issued. Examples of this is PMC overflow while in the NMI + * handler when multiple PMCs are active or PMC overflow while handling some + * other source of an NMI. + * + * Attempt to mitigate this by using the number of active PMCs to determine + * whether to return NMI_HANDLED if the perf NMI handler did not handle/reset + * any PMCs. The per-CPU perf_nmi_counter variable is set to a minimum of the + * number of active PMCs or 2. The value of 2 is used in case an NMI does not + * arrive at the LAPIC in time to be collapsed into an already pending NMI. + */ +static int amd_pmu_handle_irq(struct pt_regs *regs) +{ + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + int active, handled; + + /* + * Obtain the active count before calling x86_pmu_handle_irq() since + * it is possible that x86_pmu_handle_irq() may make a counter + * inactive (through x86_pmu_stop). + */ + active = __bitmap_weight(cpuc->active_mask, X86_PMC_IDX_MAX); + + /* Process any counter overflows */ + handled = x86_pmu_handle_irq(regs); + + /* + * If a counter was handled, record the number of possible remaining + * NMIs that can occur. + */ + if (handled) { + this_cpu_write(perf_nmi_counter, + min_t(unsigned int, 2, active)); + + return handled; + } + + if (!this_cpu_read(perf_nmi_counter)) + return NMI_DONE; + + this_cpu_dec(perf_nmi_counter); + + return NMI_HANDLED; +} + static struct event_constraint * amd_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) @@ -621,11 +872,11 @@ static ssize_t amd_event_sysfs_show(char *page, u64 config) static __initconst const struct x86_pmu amd_pmu = { .name = "AMD", - .handle_irq = x86_pmu_handle_irq, - .disable_all = x86_pmu_disable_all, + .handle_irq = amd_pmu_handle_irq, + .disable_all = amd_pmu_disable_all, .enable_all = x86_pmu_enable_all, .enable = x86_pmu_enable_event, - .disable = x86_pmu_disable_event, + .disable = amd_pmu_disable_event, .hw_config = amd_pmu_hw_config, .schedule_events = x86_schedule_events, .eventsel = MSR_K7_EVNTSEL0, @@ -718,9 +969,10 @@ __init int amd_pmu_init(void) x86_pmu.amd_nb_constraints = 0; } - /* Events are common for all AMDs */ - memcpy(hw_cache_event_ids, amd_hw_cache_event_ids, - sizeof(hw_cache_event_ids)); + if (boot_cpu_data.x86 >= 0x17) + memcpy(hw_cache_event_ids, amd_hw_cache_event_ids_f17h, sizeof(hw_cache_event_ids)); + else + memcpy(hw_cache_event_ids, amd_hw_cache_event_ids, sizeof(hw_cache_event_ids)); return 0; } @@ -732,7 +984,7 @@ void amd_pmu_enable_virt(void) cpuc->perf_ctr_virt_mask = 0; /* Reload all events */ - x86_pmu_disable_all(); + amd_pmu_disable_all(); x86_pmu_enable_all(0); } EXPORT_SYMBOL_GPL(amd_pmu_enable_virt); @@ -750,7 +1002,7 @@ void amd_pmu_disable_virt(void) cpuc->perf_ctr_virt_mask = AMD64_EVENTSEL_HOSTONLY; /* Reload all events */ - x86_pmu_disable_all(); + amd_pmu_disable_all(); x86_pmu_enable_all(0); } EXPORT_SYMBOL_GPL(amd_pmu_disable_virt); diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index e2b1447192a8..f315425d8468 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -560,6 +560,21 @@ int x86_pmu_hw_config(struct perf_event *event) return -EINVAL; } + /* sample_regs_user never support XMM registers */ + if (unlikely(event->attr.sample_regs_user & PEBS_XMM_REGS)) + return -EINVAL; + /* + * Besides the general purpose registers, XMM registers may + * be collected in PEBS on some platforms, e.g. Icelake + */ + if (unlikely(event->attr.sample_regs_intr & PEBS_XMM_REGS)) { + if (x86_pmu.pebs_no_xmm_regs) + return -EINVAL; + + if (!event->attr.precise_ip) + return -EINVAL; + } + return x86_setup_perfctr(event); } @@ -661,6 +676,10 @@ static inline int is_x86_event(struct perf_event *event) return event->pmu == &pmu; } +struct pmu *x86_get_pmu(void) +{ + return &pmu; +} /* * Event scheduler state: * @@ -849,18 +868,43 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign) struct event_constraint *c; unsigned long used_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)]; struct perf_event *e; - int i, wmin, wmax, unsched = 0; + int n0, i, wmin, wmax, unsched = 0; struct hw_perf_event *hwc; bitmap_zero(used_mask, X86_PMC_IDX_MAX); + /* + * Compute the number of events already present; see x86_pmu_add(), + * validate_group() and x86_pmu_commit_txn(). For the former two + * cpuc->n_events hasn't been updated yet, while for the latter + * cpuc->n_txn contains the number of events added in the current + * transaction. + */ + n0 = cpuc->n_events; + if (cpuc->txn_flags & PERF_PMU_TXN_ADD) + n0 -= cpuc->n_txn; + if (x86_pmu.start_scheduling) x86_pmu.start_scheduling(cpuc); for (i = 0, wmin = X86_PMC_IDX_MAX, wmax = 0; i < n; i++) { - cpuc->event_constraint[i] = NULL; - c = x86_pmu.get_event_constraints(cpuc, i, cpuc->event_list[i]); - cpuc->event_constraint[i] = c; + c = cpuc->event_constraint[i]; + + /* + * Previously scheduled events should have a cached constraint, + * while new events should not have one. + */ + WARN_ON_ONCE((c && i >= n0) || (!c && i < n0)); + + /* + * Request constraints for new events; or for those events that + * have a dynamic constraint -- for those the constraint can + * change due to external factors (sibling state, allow_tfa). + */ + if (!c || (c->flags & PERF_X86_EVENT_DYNAMIC)) { + c = x86_pmu.get_event_constraints(cpuc, i, cpuc->event_list[i]); + cpuc->event_constraint[i] = c; + } wmin = min(wmin, c->weight); wmax = max(wmax, c->weight); @@ -925,25 +969,20 @@ int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign) if (!unsched && assign) { for (i = 0; i < n; i++) { e = cpuc->event_list[i]; - e->hw.flags |= PERF_X86_EVENT_COMMITTED; if (x86_pmu.commit_scheduling) x86_pmu.commit_scheduling(cpuc, i, assign[i]); } } else { - for (i = 0; i < n; i++) { + for (i = n0; i < n; i++) { e = cpuc->event_list[i]; - /* - * do not put_constraint() on comitted events, - * because they are good to go - */ - if ((e->hw.flags & PERF_X86_EVENT_COMMITTED)) - continue; /* * release events that failed scheduling */ if (x86_pmu.put_event_constraints) x86_pmu.put_event_constraints(cpuc, e); + + cpuc->event_constraint[i] = NULL; } } @@ -1349,8 +1388,9 @@ void x86_pmu_stop(struct perf_event *event, int flags) struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; - if (__test_and_clear_bit(hwc->idx, cpuc->active_mask)) { + if (test_bit(hwc->idx, cpuc->active_mask)) { x86_pmu.disable(event); + __clear_bit(hwc->idx, cpuc->active_mask); cpuc->events[hwc->idx] = NULL; WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED); hwc->state |= PERF_HES_STOPPED; @@ -1372,11 +1412,6 @@ static void x86_pmu_del(struct perf_event *event, int flags) int i; /* - * event is descheduled - */ - event->hw.flags &= ~PERF_X86_EVENT_COMMITTED; - - /* * If we're called during a txn, we only need to undo x86_pmu.add. * The events never got scheduled and ->cancel_txn will truncate * the event_list. @@ -1412,6 +1447,7 @@ static void x86_pmu_del(struct perf_event *event, int flags) cpuc->event_list[i-1] = cpuc->event_list[i]; cpuc->event_constraint[i-1] = cpuc->event_constraint[i]; } + cpuc->event_constraint[i-1] = NULL; --cpuc->n_events; perf_event_update_userpage(event); @@ -1447,16 +1483,8 @@ int x86_pmu_handle_irq(struct pt_regs *regs) apic_write(APIC_LVTPC, APIC_DM_NMI); for (idx = 0; idx < x86_pmu.num_counters; idx++) { - if (!test_bit(idx, cpuc->active_mask)) { - /* - * Though we deactivated the counter some cpus - * might still deliver spurious interrupts still - * in flight. Catch them: - */ - if (__test_and_clear_bit(idx, cpuc->running)) - handled++; + if (!test_bit(idx, cpuc->active_mask)) continue; - } event = cpuc->events[idx]; @@ -2031,7 +2059,7 @@ static int validate_event(struct perf_event *event) if (IS_ERR(fake_cpuc)) return PTR_ERR(fake_cpuc); - c = x86_pmu.get_event_constraints(fake_cpuc, -1, event); + c = x86_pmu.get_event_constraints(fake_cpuc, 0, event); if (!c || !c->weight) ret = -EINVAL; @@ -2079,8 +2107,7 @@ static int validate_group(struct perf_event *event) if (n < 0) goto out; - fake_cpuc->n_events = n; - + fake_cpuc->n_events = 0; ret = x86_pmu.schedule_events(fake_cpuc, n, NULL); out: @@ -2355,6 +2382,15 @@ void arch_perf_update_userpage(struct perf_event *event, cyc2ns_read_end(); } +/* + * Determine whether the regs were taken from an irq/exception handler rather + * than from perf_arch_fetch_caller_regs(). + */ +static bool perf_hw_regs(struct pt_regs *regs) +{ + return regs->flags & X86_EFLAGS_FIXED; +} + void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs) { @@ -2366,11 +2402,15 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re return; } - if (perf_callchain_store(entry, regs->ip)) - return; + if (perf_hw_regs(regs)) { + if (perf_callchain_store(entry, regs->ip)) + return; + unwind_start(&state, current, regs, NULL); + } else { + unwind_start(&state, current, NULL, (void *)regs->sp); + } - for (unwind_start(&state, current, regs, NULL); !unwind_done(&state); - unwind_next_frame(&state)) { + for (; !unwind_done(&state); unwind_next_frame(&state)) { addr = unwind_get_return_address(&state); if (!addr || perf_callchain_store(entry, addr)) return; diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 8baa441d8000..ef763f535e3a 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -239,6 +239,35 @@ static struct extra_reg intel_skl_extra_regs[] __read_mostly = { EVENT_EXTRA_END }; +static struct event_constraint intel_icl_event_constraints[] = { + FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ + INTEL_UEVENT_CONSTRAINT(0x1c0, 0), /* INST_RETIRED.PREC_DIST */ + FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ + FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ + FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */ + INTEL_EVENT_CONSTRAINT_RANGE(0x03, 0x0a, 0xf), + INTEL_EVENT_CONSTRAINT_RANGE(0x1f, 0x28, 0xf), + INTEL_EVENT_CONSTRAINT(0x32, 0xf), /* SW_PREFETCH_ACCESS.* */ + INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x54, 0xf), + INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf), + INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff), /* CYCLE_ACTIVITY.STALLS_TOTAL */ + INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff), /* CYCLE_ACTIVITY.STALLS_MEM_ANY */ + INTEL_EVENT_CONSTRAINT(0xa3, 0xf), /* CYCLE_ACTIVITY.* */ + INTEL_EVENT_CONSTRAINT_RANGE(0xa8, 0xb0, 0xf), + INTEL_EVENT_CONSTRAINT_RANGE(0xb7, 0xbd, 0xf), + INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xe6, 0xf), + INTEL_EVENT_CONSTRAINT_RANGE(0xf0, 0xf4, 0xf), + EVENT_CONSTRAINT_END +}; + +static struct extra_reg intel_icl_extra_regs[] __read_mostly = { + INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffff9fffull, RSP_0), + INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffff9fffull, RSP_1), + INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), + INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE), + EVENT_EXTRA_END +}; + EVENT_ATTR_STR(mem-loads, mem_ld_nhm, "event=0x0b,umask=0x10,ldlat=3"); EVENT_ATTR_STR(mem-loads, mem_ld_snb, "event=0xcd,umask=0x1,ldlat=3"); EVENT_ATTR_STR(mem-stores, mem_st_snb, "event=0xcd,umask=0x2"); @@ -1827,6 +1856,45 @@ static __initconst const u64 glp_hw_cache_extra_regs }, }; +#define TNT_LOCAL_DRAM BIT_ULL(26) +#define TNT_DEMAND_READ GLM_DEMAND_DATA_RD +#define TNT_DEMAND_WRITE GLM_DEMAND_RFO +#define TNT_LLC_ACCESS GLM_ANY_RESPONSE +#define TNT_SNP_ANY (SNB_SNP_NOT_NEEDED|SNB_SNP_MISS| \ + SNB_NO_FWD|SNB_SNP_FWD|SNB_HITM) +#define TNT_LLC_MISS (TNT_SNP_ANY|SNB_NON_DRAM|TNT_LOCAL_DRAM) + +static __initconst const u64 tnt_hw_cache_extra_regs + [PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX] = { + [C(LL)] = { + [C(OP_READ)] = { + [C(RESULT_ACCESS)] = TNT_DEMAND_READ| + TNT_LLC_ACCESS, + [C(RESULT_MISS)] = TNT_DEMAND_READ| + TNT_LLC_MISS, + }, + [C(OP_WRITE)] = { + [C(RESULT_ACCESS)] = TNT_DEMAND_WRITE| + TNT_LLC_ACCESS, + [C(RESULT_MISS)] = TNT_DEMAND_WRITE| + TNT_LLC_MISS, + }, + [C(OP_PREFETCH)] = { + [C(RESULT_ACCESS)] = 0x0, + [C(RESULT_MISS)] = 0x0, + }, + }, +}; + +static struct extra_reg intel_tnt_extra_regs[] __read_mostly = { + /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ + INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffffff9fffull, RSP_0), + INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xffffff9fffull, RSP_1), + EVENT_EXTRA_END +}; + #define KNL_OT_L2_HITE BIT_ULL(19) /* Other Tile L2 Hit */ #define KNL_OT_L2_HITF BIT_ULL(20) /* Other Tile L2 Hit */ #define KNL_MCDRAM_LOCAL BIT_ULL(21) @@ -2015,7 +2083,7 @@ static void intel_tfa_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int /* * We're going to use PMC3, make sure TFA is set before we touch it. */ - if (cntr == 3 && !cpuc->is_fake) + if (cntr == 3) intel_set_tfa(cpuc, true); } @@ -2091,15 +2159,19 @@ static void intel_pmu_disable_event(struct perf_event *event) cpuc->intel_ctrl_host_mask &= ~(1ull << hwc->idx); cpuc->intel_cp_status &= ~(1ull << hwc->idx); - if (unlikely(event->attr.precise_ip)) - intel_pmu_pebs_disable(event); - if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) { intel_pmu_disable_fixed(hwc); return; } x86_pmu_disable_event(event); + + /* + * Needs to be called after x86_pmu_disable_event, + * so we don't trigger the event without PEBS bit set. + */ + if (unlikely(event->attr.precise_ip)) + intel_pmu_pebs_disable(event); } static void intel_pmu_del_event(struct perf_event *event) @@ -2145,6 +2217,11 @@ static void intel_pmu_enable_fixed(struct perf_event *event) bits <<= (idx * 4); mask = 0xfULL << (idx * 4); + if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip) { + bits |= ICL_FIXED_0_ADAPTIVE << (idx * 4); + mask |= ICL_FIXED_0_ADAPTIVE << (idx * 4); + } + rdmsrl(hwc->config_base, ctrl_val); ctrl_val &= ~mask; ctrl_val |= bits; @@ -2688,7 +2765,7 @@ x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx, if (x86_pmu.event_constraints) { for_each_event_constraint(c, x86_pmu.event_constraints) { - if ((event->hw.config & c->cmask) == c->code) { + if (constraint_match(c, event->hw.config)) { event->hw.flags |= c->flags; return c; } @@ -2838,7 +2915,7 @@ intel_get_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event, struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs; struct intel_excl_states *xlo; int tid = cpuc->excl_thread_id; - int is_excl, i; + int is_excl, i, w; /* * validating a group does not require @@ -2894,36 +2971,40 @@ intel_get_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event, * SHARED : sibling counter measuring non-exclusive event * UNUSED : sibling counter unused */ + w = c->weight; for_each_set_bit(i, c->idxmsk, X86_PMC_IDX_MAX) { /* * exclusive event in sibling counter * our corresponding counter cannot be used * regardless of our event */ - if (xlo->state[i] == INTEL_EXCL_EXCLUSIVE) + if (xlo->state[i] == INTEL_EXCL_EXCLUSIVE) { __clear_bit(i, c->idxmsk); + w--; + continue; + } /* * if measuring an exclusive event, sibling * measuring non-exclusive, then counter cannot * be used */ - if (is_excl && xlo->state[i] == INTEL_EXCL_SHARED) + if (is_excl && xlo->state[i] == INTEL_EXCL_SHARED) { __clear_bit(i, c->idxmsk); + w--; + continue; + } } /* - * recompute actual bit weight for scheduling algorithm - */ - c->weight = hweight64(c->idxmsk64); - - /* * if we return an empty mask, then switch * back to static empty constraint to avoid * the cost of freeing later on */ - if (c->weight == 0) + if (!w) c = &emptyconstraint; + c->weight = w; + return c; } @@ -2931,11 +3012,9 @@ static struct event_constraint * intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { - struct event_constraint *c1 = NULL; - struct event_constraint *c2; + struct event_constraint *c1, *c2; - if (idx >= 0) /* fake does < 0 */ - c1 = cpuc->event_constraint[idx]; + c1 = cpuc->event_constraint[idx]; /* * first time only @@ -2943,7 +3022,8 @@ intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx, * - dynamic constraint: handled by intel_get_excl_constraints() */ c2 = __intel_get_event_constraints(cpuc, idx, event); - if (c1 && (c1->flags & PERF_X86_EVENT_DYNAMIC)) { + if (c1) { + WARN_ON_ONCE(!(c1->flags & PERF_X86_EVENT_DYNAMIC)); bitmap_copy(c1->idxmsk, c2->idxmsk, X86_PMC_IDX_MAX); c1->weight = c2->weight; c2 = c1; @@ -3131,7 +3211,7 @@ static unsigned long intel_pmu_large_pebs_flags(struct perf_event *event) flags &= ~PERF_SAMPLE_TIME; if (!event->attr.exclude_kernel) flags &= ~PERF_SAMPLE_REGS_USER; - if (event->attr.sample_regs_user & ~PEBS_REGS) + if (event->attr.sample_regs_user & ~PEBS_GP_REGS) flags &= ~(PERF_SAMPLE_REGS_USER | PERF_SAMPLE_REGS_INTR); return flags; } @@ -3185,7 +3265,7 @@ static int intel_pmu_hw_config(struct perf_event *event) return ret; if (event->attr.precise_ip) { - if (!event->attr.freq) { + if (!(event->attr.freq || event->attr.wakeup_events)) { event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD; if (!(event->attr.sample_type & ~intel_pmu_large_pebs_flags(event))) @@ -3366,6 +3446,12 @@ static struct event_constraint counter0_constraint = static struct event_constraint counter2_constraint = EVENT_CONSTRAINT(0, 0x4, 0); +static struct event_constraint fixed0_constraint = + FIXED_EVENT_CONSTRAINT(0x00c0, 0); + +static struct event_constraint fixed0_counter0_constraint = + INTEL_ALL_EVENT_CONSTRAINT(0, 0x100000001ULL); + static struct event_constraint * hsw_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) @@ -3385,6 +3471,21 @@ hsw_get_event_constraints(struct cpu_hw_events *cpuc, int idx, } static struct event_constraint * +icl_get_event_constraints(struct cpu_hw_events *cpuc, int idx, + struct perf_event *event) +{ + /* + * Fixed counter 0 has less skid. + * Force instruction:ppp in Fixed counter 0 + */ + if ((event->attr.precise_ip == 3) && + constraint_match(&fixed0_constraint, event->hw.config)) + return &fixed0_constraint; + + return hsw_get_event_constraints(cpuc, idx, event); +} + +static struct event_constraint * glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { @@ -3399,6 +3500,29 @@ glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx, return c; } +static struct event_constraint * +tnt_get_event_constraints(struct cpu_hw_events *cpuc, int idx, + struct perf_event *event) +{ + struct event_constraint *c; + + /* + * :ppp means to do reduced skid PEBS, + * which is available on PMC0 and fixed counter 0. + */ + if (event->attr.precise_ip == 3) { + /* Force instruction:ppp on PMC0 and Fixed counter 0 */ + if (constraint_match(&fixed0_constraint, event->hw.config)) + return &fixed0_counter0_constraint; + + return &counter0_constraint; + } + + c = intel_get_event_constraints(cpuc, idx, event); + + return c; +} + static bool allow_tsx_force_abort = true; static struct event_constraint * @@ -3410,7 +3534,7 @@ tfa_get_event_constraints(struct cpu_hw_events *cpuc, int idx, /* * Without TFA we must not use PMC3. */ - if (!allow_tsx_force_abort && test_bit(3, c->idxmsk) && idx >= 0) { + if (!allow_tsx_force_abort && test_bit(3, c->idxmsk)) { c = dyn_constraint(cpuc, c, idx); c->idxmsk64 &= ~(1ULL << 3); c->weight--; @@ -3507,6 +3631,8 @@ static struct intel_excl_cntrs *allocate_excl_cntrs(int cpu) int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu) { + cpuc->pebs_record_size = x86_pmu.pebs_record_size; + if (x86_pmu.extra_regs || x86_pmu.lbr_sel_map) { cpuc->shared_regs = allocate_shared_regs(cpu); if (!cpuc->shared_regs) @@ -3575,6 +3701,12 @@ static void intel_pmu_cpu_starting(int cpu) cpuc->lbr_sel = NULL; + if (x86_pmu.flags & PMU_FL_TFA) { + WARN_ON_ONCE(cpuc->tfa_shadow); + cpuc->tfa_shadow = ~0ULL; + intel_set_tfa(cpuc, false); + } + if (x86_pmu.version > 1) flip_smm_bit(&x86_pmu.attr_freeze_on_smi); @@ -4108,6 +4240,42 @@ static struct attribute *hsw_tsx_events_attrs[] = { NULL }; +EVENT_ATTR_STR(tx-capacity-read, tx_capacity_read, "event=0x54,umask=0x80"); +EVENT_ATTR_STR(tx-capacity-write, tx_capacity_write, "event=0x54,umask=0x2"); +EVENT_ATTR_STR(el-capacity-read, el_capacity_read, "event=0x54,umask=0x80"); +EVENT_ATTR_STR(el-capacity-write, el_capacity_write, "event=0x54,umask=0x2"); + +static struct attribute *icl_events_attrs[] = { + EVENT_PTR(mem_ld_hsw), + EVENT_PTR(mem_st_hsw), + NULL, +}; + +static struct attribute *icl_tsx_events_attrs[] = { + EVENT_PTR(tx_start), + EVENT_PTR(tx_abort), + EVENT_PTR(tx_commit), + EVENT_PTR(tx_capacity_read), + EVENT_PTR(tx_capacity_write), + EVENT_PTR(tx_conflict), + EVENT_PTR(el_start), + EVENT_PTR(el_abort), + EVENT_PTR(el_commit), + EVENT_PTR(el_capacity_read), + EVENT_PTR(el_capacity_write), + EVENT_PTR(el_conflict), + EVENT_PTR(cycles_t), + EVENT_PTR(cycles_ct), + NULL, +}; + +static __init struct attribute **get_icl_events_attrs(void) +{ + return boot_cpu_has(X86_FEATURE_RTM) ? + merge_attr(icl_events_attrs, icl_tsx_events_attrs) : + icl_events_attrs; +} + static ssize_t freeze_on_smi_show(struct device *cdev, struct device_attribute *attr, char *buf) @@ -4147,6 +4315,50 @@ done: return count; } +static void update_tfa_sched(void *ignored) +{ + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + + /* + * check if PMC3 is used + * and if so force schedule out for all event types all contexts + */ + if (test_bit(3, cpuc->active_mask)) + perf_pmu_resched(x86_get_pmu()); +} + +static ssize_t show_sysctl_tfa(struct device *cdev, + struct device_attribute *attr, + char *buf) +{ + return snprintf(buf, 40, "%d\n", allow_tsx_force_abort); +} + +static ssize_t set_sysctl_tfa(struct device *cdev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + bool val; + ssize_t ret; + + ret = kstrtobool(buf, &val); + if (ret) + return ret; + + /* no change */ + if (val == allow_tsx_force_abort) + return count; + + allow_tsx_force_abort = val; + + get_online_cpus(); + on_each_cpu(update_tfa_sched, NULL, 1); + put_online_cpus(); + + return count; +} + + static DEVICE_ATTR_RW(freeze_on_smi); static ssize_t branches_show(struct device *cdev, @@ -4179,7 +4391,9 @@ static struct attribute *intel_pmu_caps_attrs[] = { NULL }; -static DEVICE_BOOL_ATTR(allow_tsx_force_abort, 0644, allow_tsx_force_abort); +static DEVICE_ATTR(allow_tsx_force_abort, 0644, + show_sysctl_tfa, + set_sysctl_tfa); static struct attribute *intel_pmu_attrs[] = { &dev_attr_freeze_on_smi.attr, @@ -4440,6 +4654,32 @@ __init int intel_pmu_init(void) name = "goldmont_plus"; break; + case INTEL_FAM6_ATOM_TREMONT_X: + x86_pmu.late_ack = true; + memcpy(hw_cache_event_ids, glp_hw_cache_event_ids, + sizeof(hw_cache_event_ids)); + memcpy(hw_cache_extra_regs, tnt_hw_cache_extra_regs, + sizeof(hw_cache_extra_regs)); + hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1; + + intel_pmu_lbr_init_skl(); + + x86_pmu.event_constraints = intel_slm_event_constraints; + x86_pmu.extra_regs = intel_tnt_extra_regs; + /* + * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS + * for precise cycles. + */ + x86_pmu.pebs_aliases = NULL; + x86_pmu.pebs_prec_dist = true; + x86_pmu.lbr_pt_coexist = true; + x86_pmu.flags |= PMU_FL_HAS_RSP_1; + x86_pmu.get_event_constraints = tnt_get_event_constraints; + extra_attr = slm_format_attr; + pr_cont("Tremont events, "); + name = "Tremont"; + break; + case INTEL_FAM6_WESTMERE: case INTEL_FAM6_WESTMERE_EP: case INTEL_FAM6_WESTMERE_EX: @@ -4688,13 +4928,41 @@ __init int intel_pmu_init(void) x86_pmu.get_event_constraints = tfa_get_event_constraints; x86_pmu.enable_all = intel_tfa_pmu_enable_all; x86_pmu.commit_scheduling = intel_tfa_commit_scheduling; - intel_pmu_attrs[1] = &dev_attr_allow_tsx_force_abort.attr.attr; + intel_pmu_attrs[1] = &dev_attr_allow_tsx_force_abort.attr; } pr_cont("Skylake events, "); name = "skylake"; break; + case INTEL_FAM6_ICELAKE_MOBILE: + x86_pmu.late_ack = true; + memcpy(hw_cache_event_ids, skl_hw_cache_event_ids, sizeof(hw_cache_event_ids)); + memcpy(hw_cache_extra_regs, skl_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); + hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1; + intel_pmu_lbr_init_skl(); + + x86_pmu.event_constraints = intel_icl_event_constraints; + x86_pmu.pebs_constraints = intel_icl_pebs_event_constraints; + x86_pmu.extra_regs = intel_icl_extra_regs; + x86_pmu.pebs_aliases = NULL; + x86_pmu.pebs_prec_dist = true; + x86_pmu.flags |= PMU_FL_HAS_RSP_1; + x86_pmu.flags |= PMU_FL_NO_HT_SHARING; + + x86_pmu.hw_config = hsw_hw_config; + x86_pmu.get_event_constraints = icl_get_event_constraints; + extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? + hsw_format_attr : nhm_format_attr; + extra_attr = merge_attr(extra_attr, skl_format_attr); + x86_pmu.cpu_events = get_icl_events_attrs(); + x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xca, .umask=0x02); + x86_pmu.lbr_pt_coexist = true; + intel_pmu_pebs_data_source_skl(false); + pr_cont("Icelake events, "); + name = "icelake"; + break; + default: switch (x86_pmu.version) { case 1: diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c index 94a4b7fc75d0..6072f92cb8ea 100644 --- a/arch/x86/events/intel/cstate.c +++ b/arch/x86/events/intel/cstate.c @@ -76,15 +76,15 @@ * Scope: Package (physical package) * MSR_PKG_C8_RESIDENCY: Package C8 Residency Counter. * perf code: 0x04 - * Available model: HSW ULT,CNL + * Available model: HSW ULT,KBL,CNL * Scope: Package (physical package) * MSR_PKG_C9_RESIDENCY: Package C9 Residency Counter. * perf code: 0x05 - * Available model: HSW ULT,CNL + * Available model: HSW ULT,KBL,CNL * Scope: Package (physical package) * MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter. * perf code: 0x06 - * Available model: HSW ULT,GLM,CNL + * Available model: HSW ULT,KBL,GLM,CNL * Scope: Package (physical package) * */ @@ -566,8 +566,8 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = { X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_DESKTOP, snb_cstates), X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_X, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, snb_cstates), + X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE, hswult_cstates), + X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, hswult_cstates), X86_CSTATES_MODEL(INTEL_FAM6_CANNONLAKE_MOBILE, cnl_cstates), @@ -578,6 +578,8 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = { X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_X, glm_cstates), X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_PLUS, glm_cstates), + + X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE_MOBILE, snb_cstates), { }, }; MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match); diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c index 10c99ce1fead..7a9f5dac5abe 100644 --- a/arch/x86/events/intel/ds.c +++ b/arch/x86/events/intel/ds.c @@ -849,6 +849,26 @@ struct event_constraint intel_skl_pebs_event_constraints[] = { EVENT_CONSTRAINT_END }; +struct event_constraint intel_icl_pebs_event_constraints[] = { + INTEL_FLAGS_UEVENT_CONSTRAINT(0x1c0, 0x100000000ULL), /* INST_RETIRED.PREC_DIST */ + INTEL_FLAGS_UEVENT_CONSTRAINT(0x0400, 0x400000000ULL), /* SLOTS */ + + INTEL_PLD_CONSTRAINT(0x1cd, 0xff), /* MEM_TRANS_RETIRED.LOAD_LATENCY */ + INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x1d0, 0xf), /* MEM_INST_RETIRED.LOAD */ + INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x2d0, 0xf), /* MEM_INST_RETIRED.STORE */ + + INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(0xd1, 0xd4, 0xf), /* MEM_LOAD_*_RETIRED.* */ + + INTEL_FLAGS_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_INST_RETIRED.* */ + + /* + * Everything else is handled by PMU_FL_PEBS_ALL, because we + * need the full constraints from the main table. + */ + + EVENT_CONSTRAINT_END +}; + struct event_constraint *intel_pebs_constraints(struct perf_event *event) { struct event_constraint *c; @@ -858,7 +878,7 @@ struct event_constraint *intel_pebs_constraints(struct perf_event *event) if (x86_pmu.pebs_constraints) { for_each_event_constraint(c, x86_pmu.pebs_constraints) { - if ((event->hw.config & c->cmask) == c->code) { + if (constraint_match(c, event->hw.config)) { event->hw.flags |= c->flags; return c; } @@ -906,17 +926,87 @@ static inline void pebs_update_threshold(struct cpu_hw_events *cpuc) if (cpuc->n_pebs == cpuc->n_large_pebs) { threshold = ds->pebs_absolute_maximum - - reserved * x86_pmu.pebs_record_size; + reserved * cpuc->pebs_record_size; } else { - threshold = ds->pebs_buffer_base + x86_pmu.pebs_record_size; + threshold = ds->pebs_buffer_base + cpuc->pebs_record_size; } ds->pebs_interrupt_threshold = threshold; } +static void adaptive_pebs_record_size_update(void) +{ + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + u64 pebs_data_cfg = cpuc->pebs_data_cfg; + int sz = sizeof(struct pebs_basic); + + if (pebs_data_cfg & PEBS_DATACFG_MEMINFO) + sz += sizeof(struct pebs_meminfo); + if (pebs_data_cfg & PEBS_DATACFG_GP) + sz += sizeof(struct pebs_gprs); + if (pebs_data_cfg & PEBS_DATACFG_XMMS) + sz += sizeof(struct pebs_xmm); + if (pebs_data_cfg & PEBS_DATACFG_LBRS) + sz += x86_pmu.lbr_nr * sizeof(struct pebs_lbr_entry); + + cpuc->pebs_record_size = sz; +} + +#define PERF_PEBS_MEMINFO_TYPE (PERF_SAMPLE_ADDR | PERF_SAMPLE_DATA_SRC | \ + PERF_SAMPLE_PHYS_ADDR | PERF_SAMPLE_WEIGHT | \ + PERF_SAMPLE_TRANSACTION) + +static u64 pebs_update_adaptive_cfg(struct perf_event *event) +{ + struct perf_event_attr *attr = &event->attr; + u64 sample_type = attr->sample_type; + u64 pebs_data_cfg = 0; + bool gprs, tsx_weight; + + if (!(sample_type & ~(PERF_SAMPLE_IP|PERF_SAMPLE_TIME)) && + attr->precise_ip > 1) + return pebs_data_cfg; + + if (sample_type & PERF_PEBS_MEMINFO_TYPE) + pebs_data_cfg |= PEBS_DATACFG_MEMINFO; + + /* + * We need GPRs when: + * + user requested them + * + precise_ip < 2 for the non event IP + * + For RTM TSX weight we need GPRs for the abort code. + */ + gprs = (sample_type & PERF_SAMPLE_REGS_INTR) && + (attr->sample_regs_intr & PEBS_GP_REGS); + + tsx_weight = (sample_type & PERF_SAMPLE_WEIGHT) && + ((attr->config & INTEL_ARCH_EVENT_MASK) == + x86_pmu.rtm_abort_event); + + if (gprs || (attr->precise_ip < 2) || tsx_weight) + pebs_data_cfg |= PEBS_DATACFG_GP; + + if ((sample_type & PERF_SAMPLE_REGS_INTR) && + (attr->sample_regs_intr & PEBS_XMM_REGS)) + pebs_data_cfg |= PEBS_DATACFG_XMMS; + + if (sample_type & PERF_SAMPLE_BRANCH_STACK) { + /* + * For now always log all LBRs. Could configure this + * later. + */ + pebs_data_cfg |= PEBS_DATACFG_LBRS | + ((x86_pmu.lbr_nr-1) << PEBS_DATACFG_LBR_SHIFT); + } + + return pebs_data_cfg; +} + static void -pebs_update_state(bool needed_cb, struct cpu_hw_events *cpuc, struct pmu *pmu) +pebs_update_state(bool needed_cb, struct cpu_hw_events *cpuc, + struct perf_event *event, bool add) { + struct pmu *pmu = event->ctx->pmu; /* * Make sure we get updated with the first PEBS * event. It will trigger also during removal, but @@ -933,6 +1023,29 @@ pebs_update_state(bool needed_cb, struct cpu_hw_events *cpuc, struct pmu *pmu) update = true; } + /* + * The PEBS record doesn't shrink on pmu::del(). Doing so would require + * iterating all remaining PEBS events to reconstruct the config. + */ + if (x86_pmu.intel_cap.pebs_baseline && add) { + u64 pebs_data_cfg; + + /* Clear pebs_data_cfg and pebs_record_size for first PEBS. */ + if (cpuc->n_pebs == 1) { + cpuc->pebs_data_cfg = 0; + cpuc->pebs_record_size = sizeof(struct pebs_basic); + } + + pebs_data_cfg = pebs_update_adaptive_cfg(event); + + /* Update pebs_record_size if new event requires more data. */ + if (pebs_data_cfg & ~cpuc->pebs_data_cfg) { + cpuc->pebs_data_cfg |= pebs_data_cfg; + adaptive_pebs_record_size_update(); + update = true; + } + } + if (update) pebs_update_threshold(cpuc); } @@ -947,7 +1060,7 @@ void intel_pmu_pebs_add(struct perf_event *event) if (hwc->flags & PERF_X86_EVENT_LARGE_PEBS) cpuc->n_large_pebs++; - pebs_update_state(needed_cb, cpuc, event->ctx->pmu); + pebs_update_state(needed_cb, cpuc, event, true); } void intel_pmu_pebs_enable(struct perf_event *event) @@ -960,11 +1073,19 @@ void intel_pmu_pebs_enable(struct perf_event *event) cpuc->pebs_enabled |= 1ULL << hwc->idx; - if (event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) + if ((event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) && (x86_pmu.version < 5)) cpuc->pebs_enabled |= 1ULL << (hwc->idx + 32); else if (event->hw.flags & PERF_X86_EVENT_PEBS_ST) cpuc->pebs_enabled |= 1ULL << 63; + if (x86_pmu.intel_cap.pebs_baseline) { + hwc->config |= ICL_EVENTSEL_ADAPTIVE; + if (cpuc->pebs_data_cfg != cpuc->active_pebs_data_cfg) { + wrmsrl(MSR_PEBS_DATA_CFG, cpuc->pebs_data_cfg); + cpuc->active_pebs_data_cfg = cpuc->pebs_data_cfg; + } + } + /* * Use auto-reload if possible to save a MSR write in the PMI. * This must be done in pmu::start(), because PERF_EVENT_IOC_PERIOD. @@ -991,7 +1112,7 @@ void intel_pmu_pebs_del(struct perf_event *event) if (hwc->flags & PERF_X86_EVENT_LARGE_PEBS) cpuc->n_large_pebs--; - pebs_update_state(needed_cb, cpuc, event->ctx->pmu); + pebs_update_state(needed_cb, cpuc, event, false); } void intel_pmu_pebs_disable(struct perf_event *event) @@ -1004,7 +1125,8 @@ void intel_pmu_pebs_disable(struct perf_event *event) cpuc->pebs_enabled &= ~(1ULL << hwc->idx); - if (event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) + if ((event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) && + (x86_pmu.version < 5)) cpuc->pebs_enabled &= ~(1ULL << (hwc->idx + 32)); else if (event->hw.flags & PERF_X86_EVENT_PEBS_ST) cpuc->pebs_enabled &= ~(1ULL << 63); @@ -1125,34 +1247,57 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs) return 0; } -static inline u64 intel_hsw_weight(struct pebs_record_skl *pebs) +static inline u64 intel_get_tsx_weight(u64 tsx_tuning) { - if (pebs->tsx_tuning) { - union hsw_tsx_tuning tsx = { .value = pebs->tsx_tuning }; + if (tsx_tuning) { + union hsw_tsx_tuning tsx = { .value = tsx_tuning }; return tsx.cycles_last_block; } return 0; } -static inline u64 intel_hsw_transaction(struct pebs_record_skl *pebs) +static inline u64 intel_get_tsx_transaction(u64 tsx_tuning, u64 ax) { - u64 txn = (pebs->tsx_tuning & PEBS_HSW_TSX_FLAGS) >> 32; + u64 txn = (tsx_tuning & PEBS_HSW_TSX_FLAGS) >> 32; /* For RTM XABORTs also log the abort code from AX */ - if ((txn & PERF_TXN_TRANSACTION) && (pebs->ax & 1)) - txn |= ((pebs->ax >> 24) & 0xff) << PERF_TXN_ABORT_SHIFT; + if ((txn & PERF_TXN_TRANSACTION) && (ax & 1)) + txn |= ((ax >> 24) & 0xff) << PERF_TXN_ABORT_SHIFT; return txn; } -static void setup_pebs_sample_data(struct perf_event *event, - struct pt_regs *iregs, void *__pebs, - struct perf_sample_data *data, - struct pt_regs *regs) +static inline u64 get_pebs_status(void *n) { + if (x86_pmu.intel_cap.pebs_format < 4) + return ((struct pebs_record_nhm *)n)->status; + return ((struct pebs_basic *)n)->applicable_counters; +} + #define PERF_X86_EVENT_PEBS_HSW_PREC \ (PERF_X86_EVENT_PEBS_ST_HSW | \ PERF_X86_EVENT_PEBS_LD_HSW | \ PERF_X86_EVENT_PEBS_NA_HSW) + +static u64 get_data_src(struct perf_event *event, u64 aux) +{ + u64 val = PERF_MEM_NA; + int fl = event->hw.flags; + bool fst = fl & (PERF_X86_EVENT_PEBS_ST | PERF_X86_EVENT_PEBS_HSW_PREC); + + if (fl & PERF_X86_EVENT_PEBS_LDLAT) + val = load_latency_data(aux); + else if (fst && (fl & PERF_X86_EVENT_PEBS_HSW_PREC)) + val = precise_datala_hsw(event, aux); + else if (fst) + val = precise_store_data(aux); + return val; +} + +static void setup_pebs_fixed_sample_data(struct perf_event *event, + struct pt_regs *iregs, void *__pebs, + struct perf_sample_data *data, + struct pt_regs *regs) +{ /* * We cast to the biggest pebs_record but are careful not to * unconditionally access the 'extra' entries. @@ -1160,17 +1305,13 @@ static void setup_pebs_sample_data(struct perf_event *event, struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct pebs_record_skl *pebs = __pebs; u64 sample_type; - int fll, fst, dsrc; - int fl = event->hw.flags; + int fll; if (pebs == NULL) return; sample_type = event->attr.sample_type; - dsrc = sample_type & PERF_SAMPLE_DATA_SRC; - - fll = fl & PERF_X86_EVENT_PEBS_LDLAT; - fst = fl & (PERF_X86_EVENT_PEBS_ST | PERF_X86_EVENT_PEBS_HSW_PREC); + fll = event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT; perf_sample_data_init(data, 0, event->hw.last_period); @@ -1185,16 +1326,8 @@ static void setup_pebs_sample_data(struct perf_event *event, /* * data.data_src encodes the data source */ - if (dsrc) { - u64 val = PERF_MEM_NA; - if (fll) - val = load_latency_data(pebs->dse); - else if (fst && (fl & PERF_X86_EVENT_PEBS_HSW_PREC)) - val = precise_datala_hsw(event, pebs->dse); - else if (fst) - val = precise_store_data(pebs->dse); - data->data_src.val = val; - } + if (sample_type & PERF_SAMPLE_DATA_SRC) + data->data_src.val = get_data_src(event, pebs->dse); /* * We must however always use iregs for the unwinder to stay sane; the @@ -1281,10 +1414,11 @@ static void setup_pebs_sample_data(struct perf_event *event, if (x86_pmu.intel_cap.pebs_format >= 2) { /* Only set the TSX weight when no memory weight. */ if ((sample_type & PERF_SAMPLE_WEIGHT) && !fll) - data->weight = intel_hsw_weight(pebs); + data->weight = intel_get_tsx_weight(pebs->tsx_tuning); if (sample_type & PERF_SAMPLE_TRANSACTION) - data->txn = intel_hsw_transaction(pebs); + data->txn = intel_get_tsx_transaction(pebs->tsx_tuning, + pebs->ax); } /* @@ -1301,6 +1435,140 @@ static void setup_pebs_sample_data(struct perf_event *event, data->br_stack = &cpuc->lbr_stack; } +static void adaptive_pebs_save_regs(struct pt_regs *regs, + struct pebs_gprs *gprs) +{ + regs->ax = gprs->ax; + regs->bx = gprs->bx; + regs->cx = gprs->cx; + regs->dx = gprs->dx; + regs->si = gprs->si; + regs->di = gprs->di; + regs->bp = gprs->bp; + regs->sp = gprs->sp; +#ifndef CONFIG_X86_32 + regs->r8 = gprs->r8; + regs->r9 = gprs->r9; + regs->r10 = gprs->r10; + regs->r11 = gprs->r11; + regs->r12 = gprs->r12; + regs->r13 = gprs->r13; + regs->r14 = gprs->r14; + regs->r15 = gprs->r15; +#endif +} + +/* + * With adaptive PEBS the layout depends on what fields are configured. + */ + +static void setup_pebs_adaptive_sample_data(struct perf_event *event, + struct pt_regs *iregs, void *__pebs, + struct perf_sample_data *data, + struct pt_regs *regs) +{ + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + struct pebs_basic *basic = __pebs; + void *next_record = basic + 1; + u64 sample_type; + u64 format_size; + struct pebs_meminfo *meminfo = NULL; + struct pebs_gprs *gprs = NULL; + struct x86_perf_regs *perf_regs; + + if (basic == NULL) + return; + + perf_regs = container_of(regs, struct x86_perf_regs, regs); + perf_regs->xmm_regs = NULL; + + sample_type = event->attr.sample_type; + format_size = basic->format_size; + perf_sample_data_init(data, 0, event->hw.last_period); + data->period = event->hw.last_period; + + if (event->attr.use_clockid == 0) + data->time = native_sched_clock_from_tsc(basic->tsc); + + /* + * We must however always use iregs for the unwinder to stay sane; the + * record BP,SP,IP can point into thin air when the record is from a + * previous PMI context or an (I)RET happened between the record and + * PMI. + */ + if (sample_type & PERF_SAMPLE_CALLCHAIN) + data->callchain = perf_callchain(event, iregs); + + *regs = *iregs; + /* The ip in basic is EventingIP */ + set_linear_ip(regs, basic->ip); + regs->flags = PERF_EFLAGS_EXACT; + + /* + * The record for MEMINFO is in front of GP + * But PERF_SAMPLE_TRANSACTION needs gprs->ax. + * Save the pointer here but process later. + */ + if (format_size & PEBS_DATACFG_MEMINFO) { + meminfo = next_record; + next_record = meminfo + 1; + } + + if (format_size & PEBS_DATACFG_GP) { + gprs = next_record; + next_record = gprs + 1; + + if (event->attr.precise_ip < 2) { + set_linear_ip(regs, gprs->ip); + regs->flags &= ~PERF_EFLAGS_EXACT; + } + + if (sample_type & PERF_SAMPLE_REGS_INTR) + adaptive_pebs_save_regs(regs, gprs); + } + + if (format_size & PEBS_DATACFG_MEMINFO) { + if (sample_type & PERF_SAMPLE_WEIGHT) + data->weight = meminfo->latency ?: + intel_get_tsx_weight(meminfo->tsx_tuning); + + if (sample_type & PERF_SAMPLE_DATA_SRC) + data->data_src.val = get_data_src(event, meminfo->aux); + + if (sample_type & (PERF_SAMPLE_ADDR | PERF_SAMPLE_PHYS_ADDR)) + data->addr = meminfo->address; + + if (sample_type & PERF_SAMPLE_TRANSACTION) + data->txn = intel_get_tsx_transaction(meminfo->tsx_tuning, + gprs ? gprs->ax : 0); + } + + if (format_size & PEBS_DATACFG_XMMS) { + struct pebs_xmm *xmm = next_record; + + next_record = xmm + 1; + perf_regs->xmm_regs = xmm->xmm; + } + + if (format_size & PEBS_DATACFG_LBRS) { + struct pebs_lbr *lbr = next_record; + int num_lbr = ((format_size >> PEBS_DATACFG_LBR_SHIFT) + & 0xff) + 1; + next_record = next_record + num_lbr*sizeof(struct pebs_lbr_entry); + + if (has_branch_stack(event)) { + intel_pmu_store_pebs_lbrs(lbr); + data->br_stack = &cpuc->lbr_stack; + } + } + + WARN_ONCE(next_record != __pebs + (format_size >> 48), + "PEBS record size %llu, expected %llu, config %llx\n", + format_size >> 48, + (u64)(next_record - __pebs), + basic->format_size); +} + static inline void * get_next_pebs_record_by_bit(void *base, void *top, int bit) { @@ -1318,19 +1586,19 @@ get_next_pebs_record_by_bit(void *base, void *top, int bit) if (base == NULL) return NULL; - for (at = base; at < top; at += x86_pmu.pebs_record_size) { - struct pebs_record_nhm *p = at; + for (at = base; at < top; at += cpuc->pebs_record_size) { + unsigned long status = get_pebs_status(at); - if (test_bit(bit, (unsigned long *)&p->status)) { + if (test_bit(bit, (unsigned long *)&status)) { /* PEBS v3 has accurate status bits */ if (x86_pmu.intel_cap.pebs_format >= 3) return at; - if (p->status == (1 << bit)) + if (status == (1 << bit)) return at; /* clear non-PEBS bit and re-check */ - pebs_status = p->status & cpuc->pebs_enabled; + pebs_status = status & cpuc->pebs_enabled; pebs_status &= PEBS_COUNTER_MASK; if (pebs_status == (1 << bit)) return at; @@ -1410,11 +1678,18 @@ intel_pmu_save_and_restart_reload(struct perf_event *event, int count) static void __intel_pmu_pebs_event(struct perf_event *event, struct pt_regs *iregs, void *base, void *top, - int bit, int count) + int bit, int count, + void (*setup_sample)(struct perf_event *, + struct pt_regs *, + void *, + struct perf_sample_data *, + struct pt_regs *)) { + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; struct perf_sample_data data; - struct pt_regs regs; + struct x86_perf_regs perf_regs; + struct pt_regs *regs = &perf_regs.regs; void *at = get_next_pebs_record_by_bit(base, top, bit); if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) { @@ -1429,20 +1704,20 @@ static void __intel_pmu_pebs_event(struct perf_event *event, return; while (count > 1) { - setup_pebs_sample_data(event, iregs, at, &data, ®s); - perf_event_output(event, &data, ®s); - at += x86_pmu.pebs_record_size; + setup_sample(event, iregs, at, &data, regs); + perf_event_output(event, &data, regs); + at += cpuc->pebs_record_size; at = get_next_pebs_record_by_bit(at, top, bit); count--; } - setup_pebs_sample_data(event, iregs, at, &data, ®s); + setup_sample(event, iregs, at, &data, regs); /* * All but the last records are processed. * The last one is left to be able to call the overflow handler. */ - if (perf_event_overflow(event, &data, ®s)) { + if (perf_event_overflow(event, &data, regs)) { x86_pmu_stop(event, 0); return; } @@ -1483,7 +1758,27 @@ static void intel_pmu_drain_pebs_core(struct pt_regs *iregs) return; } - __intel_pmu_pebs_event(event, iregs, at, top, 0, n); + __intel_pmu_pebs_event(event, iregs, at, top, 0, n, + setup_pebs_fixed_sample_data); +} + +static void intel_pmu_pebs_event_update_no_drain(struct cpu_hw_events *cpuc, int size) +{ + struct perf_event *event; + int bit; + + /* + * The drain_pebs() could be called twice in a short period + * for auto-reload event in pmu::read(). There are no + * overflows have happened in between. + * It needs to call intel_pmu_save_and_restart_reload() to + * update the event->count for this case. + */ + for_each_set_bit(bit, (unsigned long *)&cpuc->pebs_enabled, size) { + event = cpuc->events[bit]; + if (event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD) + intel_pmu_save_and_restart_reload(event, 0); + } } static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs) @@ -1513,19 +1808,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs) } if (unlikely(base >= top)) { - /* - * The drain_pebs() could be called twice in a short period - * for auto-reload event in pmu::read(). There are no - * overflows have happened in between. - * It needs to call intel_pmu_save_and_restart_reload() to - * update the event->count for this case. - */ - for_each_set_bit(bit, (unsigned long *)&cpuc->pebs_enabled, - size) { - event = cpuc->events[bit]; - if (event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD) - intel_pmu_save_and_restart_reload(event, 0); - } + intel_pmu_pebs_event_update_no_drain(cpuc, size); return; } @@ -1538,8 +1821,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs) /* PEBS v3 has more accurate status bits */ if (x86_pmu.intel_cap.pebs_format >= 3) { - for_each_set_bit(bit, (unsigned long *)&pebs_status, - size) + for_each_set_bit(bit, (unsigned long *)&pebs_status, size) counts[bit]++; continue; @@ -1578,8 +1860,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs) * If collision happened, the record will be dropped. */ if (p->status != (1ULL << bit)) { - for_each_set_bit(i, (unsigned long *)&pebs_status, - x86_pmu.max_pebs_events) + for_each_set_bit(i, (unsigned long *)&pebs_status, size) error[i]++; continue; } @@ -1587,7 +1868,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs) counts[bit]++; } - for (bit = 0; bit < size; bit++) { + for_each_set_bit(bit, (unsigned long *)&mask, size) { if ((counts[bit] == 0) && (error[bit] == 0)) continue; @@ -1608,11 +1889,66 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs) if (counts[bit]) { __intel_pmu_pebs_event(event, iregs, base, - top, bit, counts[bit]); + top, bit, counts[bit], + setup_pebs_fixed_sample_data); } } } +static void intel_pmu_drain_pebs_icl(struct pt_regs *iregs) +{ + short counts[INTEL_PMC_IDX_FIXED + MAX_FIXED_PEBS_EVENTS] = {}; + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + struct debug_store *ds = cpuc->ds; + struct perf_event *event; + void *base, *at, *top; + int bit, size; + u64 mask; + + if (!x86_pmu.pebs_active) + return; + + base = (struct pebs_basic *)(unsigned long)ds->pebs_buffer_base; + top = (struct pebs_basic *)(unsigned long)ds->pebs_index; + + ds->pebs_index = ds->pebs_buffer_base; + + mask = ((1ULL << x86_pmu.max_pebs_events) - 1) | + (((1ULL << x86_pmu.num_counters_fixed) - 1) << INTEL_PMC_IDX_FIXED); + size = INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed; + + if (unlikely(base >= top)) { + intel_pmu_pebs_event_update_no_drain(cpuc, size); + return; + } + + for (at = base; at < top; at += cpuc->pebs_record_size) { + u64 pebs_status; + + pebs_status = get_pebs_status(at) & cpuc->pebs_enabled; + pebs_status &= mask; + + for_each_set_bit(bit, (unsigned long *)&pebs_status, size) + counts[bit]++; + } + + for_each_set_bit(bit, (unsigned long *)&mask, size) { + if (counts[bit] == 0) + continue; + + event = cpuc->events[bit]; + if (WARN_ON_ONCE(!event)) + continue; + + if (WARN_ON_ONCE(!event->attr.precise_ip)) + continue; + + __intel_pmu_pebs_event(event, iregs, base, + top, bit, counts[bit], + setup_pebs_adaptive_sample_data); + } +} + /* * BTS, PEBS probe and setup */ @@ -1628,12 +1964,18 @@ void __init intel_ds_init(void) x86_pmu.bts = boot_cpu_has(X86_FEATURE_BTS); x86_pmu.pebs = boot_cpu_has(X86_FEATURE_PEBS); x86_pmu.pebs_buffer_size = PEBS_BUFFER_SIZE; - if (x86_pmu.version <= 4) + if (x86_pmu.version <= 4) { x86_pmu.pebs_no_isolation = 1; + x86_pmu.pebs_no_xmm_regs = 1; + } if (x86_pmu.pebs) { char pebs_type = x86_pmu.intel_cap.pebs_trap ? '+' : '-'; + char *pebs_qual = ""; int format = x86_pmu.intel_cap.pebs_format; + if (format < 4) + x86_pmu.intel_cap.pebs_baseline = 0; + switch (format) { case 0: pr_cont("PEBS fmt0%c, ", pebs_type); @@ -1669,6 +2011,29 @@ void __init intel_ds_init(void) x86_pmu.large_pebs_flags |= PERF_SAMPLE_TIME; break; + case 4: + x86_pmu.drain_pebs = intel_pmu_drain_pebs_icl; + x86_pmu.pebs_record_size = sizeof(struct pebs_basic); + if (x86_pmu.intel_cap.pebs_baseline) { + x86_pmu.large_pebs_flags |= + PERF_SAMPLE_BRANCH_STACK | + PERF_SAMPLE_TIME; + x86_pmu.flags |= PMU_FL_PEBS_ALL; + pebs_qual = "-baseline"; + } else { + /* Only basic record supported */ + x86_pmu.pebs_no_xmm_regs = 1; + x86_pmu.large_pebs_flags &= + ~(PERF_SAMPLE_ADDR | + PERF_SAMPLE_TIME | + PERF_SAMPLE_DATA_SRC | + PERF_SAMPLE_TRANSACTION | + PERF_SAMPLE_REGS_USER | + PERF_SAMPLE_REGS_INTR); + } + pr_cont("PEBS fmt4%c%s, ", pebs_type, pebs_qual); + break; + default: pr_cont("no PEBS fmt%d%c, ", format, pebs_type); x86_pmu.pebs = 0; diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index 580c1b91c454..6f814a27416b 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -488,6 +488,8 @@ void intel_pmu_lbr_add(struct perf_event *event) * be 'new'. Conversely, a new event can get installed through the * context switch path for the first time. */ + if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip > 0) + cpuc->lbr_pebs_users++; perf_sched_cb_inc(event->ctx->pmu); if (!cpuc->lbr_users++ && !event->total_time_running) intel_pmu_lbr_reset(); @@ -507,8 +509,11 @@ void intel_pmu_lbr_del(struct perf_event *event) task_ctx->lbr_callstack_users--; } + if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip > 0) + cpuc->lbr_pebs_users--; cpuc->lbr_users--; WARN_ON_ONCE(cpuc->lbr_users < 0); + WARN_ON_ONCE(cpuc->lbr_pebs_users < 0); perf_sched_cb_dec(event->ctx->pmu); } @@ -658,7 +663,13 @@ void intel_pmu_lbr_read(void) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); - if (!cpuc->lbr_users) + /* + * Don't read when all LBRs users are using adaptive PEBS. + * + * This could be smarter and actually check the event, + * but this simple approach seems to work for now. + */ + if (!cpuc->lbr_users || cpuc->lbr_users == cpuc->lbr_pebs_users) return; if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_32) @@ -1080,6 +1091,28 @@ intel_pmu_lbr_filter(struct cpu_hw_events *cpuc) } } +void intel_pmu_store_pebs_lbrs(struct pebs_lbr *lbr) +{ + struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); + int i; + + cpuc->lbr_stack.nr = x86_pmu.lbr_nr; + for (i = 0; i < x86_pmu.lbr_nr; i++) { + u64 info = lbr->lbr[i].info; + struct perf_branch_entry *e = &cpuc->lbr_entries[i]; + + e->from = lbr->lbr[i].from; + e->to = lbr->lbr[i].to; + e->mispred = !!(info & LBR_INFO_MISPRED); + e->predicted = !(info & LBR_INFO_MISPRED); + e->in_tx = !!(info & LBR_INFO_IN_TX); + e->abort = !!(info & LBR_INFO_ABORT); + e->cycles = info & LBR_INFO_CYCLES; + e->reserved = 0; + } + intel_pmu_lbr_filter(cpuc); +} + /* * Map interface branch filters onto LBR filters */ diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index fb3a2f13fc70..339d7628080c 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -1525,8 +1525,7 @@ static __init int pt_init(void) } if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries)) - pt_pmu.pmu.capabilities = - PERF_PMU_CAP_AUX_NO_SG | PERF_PMU_CAP_AUX_SW_DOUBLEBUF; + pt_pmu.pmu.capabilities = PERF_PMU_CAP_AUX_NO_SG; pt_pmu.pmu.capabilities |= PERF_PMU_CAP_EXCLUSIVE | PERF_PMU_CAP_ITRACE; pt_pmu.pmu.attr_groups = pt_attr_groups; diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c index 94dc564146ca..37ebf6fc5415 100644 --- a/arch/x86/events/intel/rapl.c +++ b/arch/x86/events/intel/rapl.c @@ -775,6 +775,8 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = { X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_X, hsw_rapl_init), X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_PLUS, hsw_rapl_init), + + X86_RAPL_MODEL_MATCH(INTEL_FAM6_ICELAKE_MOBILE, skl_rapl_init), {}, }; diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c index 9fe64c01a2e5..fc40a1473058 100644 --- a/arch/x86/events/intel/uncore.c +++ b/arch/x86/events/intel/uncore.c @@ -1367,6 +1367,11 @@ static const struct intel_uncore_init_fun skx_uncore_init __initconst = { .pci_init = skx_uncore_pci_init, }; +static const struct intel_uncore_init_fun icl_uncore_init __initconst = { + .cpu_init = icl_uncore_cpu_init, + .pci_init = skl_uncore_pci_init, +}; + static const struct x86_cpu_id intel_uncore_match[] __initconst = { X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM_EP, nhm_uncore_init), X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM, nhm_uncore_init), @@ -1393,6 +1398,7 @@ static const struct x86_cpu_id intel_uncore_match[] __initconst = { X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, skx_uncore_init), X86_UNCORE_MODEL_MATCH(INTEL_FAM6_KABYLAKE_MOBILE, skl_uncore_init), X86_UNCORE_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_uncore_init), + X86_UNCORE_MODEL_MATCH(INTEL_FAM6_ICELAKE_MOBILE, icl_uncore_init), {}, }; diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h index 853a49a8ccf6..79eb2e21e4f0 100644 --- a/arch/x86/events/intel/uncore.h +++ b/arch/x86/events/intel/uncore.h @@ -512,6 +512,7 @@ int skl_uncore_pci_init(void); void snb_uncore_cpu_init(void); void nhm_uncore_cpu_init(void); void skl_uncore_cpu_init(void); +void icl_uncore_cpu_init(void); int snb_pci2phy_map_init(int devid); /* uncore_snbep.c */ diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c index 13493f43b247..f8431819b3e1 100644 --- a/arch/x86/events/intel/uncore_snb.c +++ b/arch/x86/events/intel/uncore_snb.c @@ -34,6 +34,8 @@ #define PCI_DEVICE_ID_INTEL_CFL_4S_S_IMC 0x3e33 #define PCI_DEVICE_ID_INTEL_CFL_6S_S_IMC 0x3eca #define PCI_DEVICE_ID_INTEL_CFL_8S_S_IMC 0x3e32 +#define PCI_DEVICE_ID_INTEL_ICL_U_IMC 0x8a02 +#define PCI_DEVICE_ID_INTEL_ICL_U2_IMC 0x8a12 /* SNB event control */ #define SNB_UNC_CTL_EV_SEL_MASK 0x000000ff @@ -93,6 +95,12 @@ #define SKL_UNC_PERF_GLOBAL_CTL 0xe01 #define SKL_UNC_GLOBAL_CTL_CORE_ALL ((1 << 5) - 1) +/* ICL Cbo register */ +#define ICL_UNC_CBO_CONFIG 0x396 +#define ICL_UNC_NUM_CBO_MASK 0xf +#define ICL_UNC_CBO_0_PER_CTR0 0x702 +#define ICL_UNC_CBO_MSR_OFFSET 0x8 + DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7"); DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15"); DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18"); @@ -280,6 +288,70 @@ void skl_uncore_cpu_init(void) snb_uncore_arb.ops = &skl_uncore_msr_ops; } +static struct intel_uncore_type icl_uncore_cbox = { + .name = "cbox", + .num_counters = 4, + .perf_ctr_bits = 44, + .perf_ctr = ICL_UNC_CBO_0_PER_CTR0, + .event_ctl = SNB_UNC_CBO_0_PERFEVTSEL0, + .event_mask = SNB_UNC_RAW_EVENT_MASK, + .msr_offset = ICL_UNC_CBO_MSR_OFFSET, + .ops = &skl_uncore_msr_ops, + .format_group = &snb_uncore_format_group, +}; + +static struct uncore_event_desc icl_uncore_events[] = { + INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff"), + { /* end: all zeroes */ }, +}; + +static struct attribute *icl_uncore_clock_formats_attr[] = { + &format_attr_event.attr, + NULL, +}; + +static struct attribute_group icl_uncore_clock_format_group = { + .name = "format", + .attrs = icl_uncore_clock_formats_attr, +}; + +static struct intel_uncore_type icl_uncore_clockbox = { + .name = "clock", + .num_counters = 1, + .num_boxes = 1, + .fixed_ctr_bits = 48, + .fixed_ctr = SNB_UNC_FIXED_CTR, + .fixed_ctl = SNB_UNC_FIXED_CTR_CTRL, + .single_fixed = 1, + .event_mask = SNB_UNC_CTL_EV_SEL_MASK, + .format_group = &icl_uncore_clock_format_group, + .ops = &skl_uncore_msr_ops, + .event_descs = icl_uncore_events, +}; + +static struct intel_uncore_type *icl_msr_uncores[] = { + &icl_uncore_cbox, + &snb_uncore_arb, + &icl_uncore_clockbox, + NULL, +}; + +static int icl_get_cbox_num(void) +{ + u64 num_boxes; + + rdmsrl(ICL_UNC_CBO_CONFIG, num_boxes); + + return num_boxes & ICL_UNC_NUM_CBO_MASK; +} + +void icl_uncore_cpu_init(void) +{ + uncore_msr_uncores = icl_msr_uncores; + icl_uncore_cbox.num_boxes = icl_get_cbox_num(); + snb_uncore_arb.ops = &skl_uncore_msr_ops; +} + enum { SNB_PCI_UNCORE_IMC, }; @@ -668,6 +740,18 @@ static const struct pci_device_id skl_uncore_pci_ids[] = { { /* end: all zeroes */ }, }; +static const struct pci_device_id icl_uncore_pci_ids[] = { + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICL_U_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICL_U2_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* end: all zeroes */ }, +}; + static struct pci_driver snb_uncore_pci_driver = { .name = "snb_uncore", .id_table = snb_uncore_pci_ids, @@ -693,6 +777,11 @@ static struct pci_driver skl_uncore_pci_driver = { .id_table = skl_uncore_pci_ids, }; +static struct pci_driver icl_uncore_pci_driver = { + .name = "icl_uncore", + .id_table = icl_uncore_pci_ids, +}; + struct imc_uncore_pci_dev { __u32 pci_id; struct pci_driver *driver; @@ -732,6 +821,8 @@ static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = { IMC_DEV(CFL_4S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Server */ IMC_DEV(CFL_6S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Server */ IMC_DEV(CFL_8S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Server */ + IMC_DEV(ICL_U_IMC, &icl_uncore_pci_driver), /* 10th Gen Core Mobile */ + IMC_DEV(ICL_U2_IMC, &icl_uncore_pci_driver), /* 10th Gen Core Mobile */ { /* end marker */ } }; diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c index a878e6286e4a..f3f4c2263501 100644 --- a/arch/x86/events/msr.c +++ b/arch/x86/events/msr.c @@ -89,6 +89,7 @@ static bool test_intel(int idx) case INTEL_FAM6_SKYLAKE_X: case INTEL_FAM6_KABYLAKE_MOBILE: case INTEL_FAM6_KABYLAKE_DESKTOP: + case INTEL_FAM6_ICELAKE_MOBILE: if (idx == PERF_MSR_SMI || idx == PERF_MSR_PPERF) return true; break; diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h index a75955741c50..07fc84bb85c1 100644 --- a/arch/x86/events/perf_event.h +++ b/arch/x86/events/perf_event.h @@ -49,28 +49,33 @@ struct event_constraint { unsigned long idxmsk[BITS_TO_LONGS(X86_PMC_IDX_MAX)]; u64 idxmsk64; }; - u64 code; - u64 cmask; - int weight; - int overlap; - int flags; + u64 code; + u64 cmask; + int weight; + int overlap; + int flags; + unsigned int size; }; + +static inline bool constraint_match(struct event_constraint *c, u64 ecode) +{ + return ((ecode & c->cmask) - c->code) <= (u64)c->size; +} + /* * struct hw_perf_event.flags flags */ #define PERF_X86_EVENT_PEBS_LDLAT 0x0001 /* ld+ldlat data address sampling */ #define PERF_X86_EVENT_PEBS_ST 0x0002 /* st data address sampling */ #define PERF_X86_EVENT_PEBS_ST_HSW 0x0004 /* haswell style datala, store */ -#define PERF_X86_EVENT_COMMITTED 0x0008 /* event passed commit_txn */ -#define PERF_X86_EVENT_PEBS_LD_HSW 0x0010 /* haswell style datala, load */ -#define PERF_X86_EVENT_PEBS_NA_HSW 0x0020 /* haswell style datala, unknown */ -#define PERF_X86_EVENT_EXCL 0x0040 /* HT exclusivity on counter */ -#define PERF_X86_EVENT_DYNAMIC 0x0080 /* dynamic alloc'd constraint */ -#define PERF_X86_EVENT_RDPMC_ALLOWED 0x0100 /* grant rdpmc permission */ -#define PERF_X86_EVENT_EXCL_ACCT 0x0200 /* accounted EXCL event */ -#define PERF_X86_EVENT_AUTO_RELOAD 0x0400 /* use PEBS auto-reload */ -#define PERF_X86_EVENT_LARGE_PEBS 0x0800 /* use large PEBS */ - +#define PERF_X86_EVENT_PEBS_LD_HSW 0x0008 /* haswell style datala, load */ +#define PERF_X86_EVENT_PEBS_NA_HSW 0x0010 /* haswell style datala, unknown */ +#define PERF_X86_EVENT_EXCL 0x0020 /* HT exclusivity on counter */ +#define PERF_X86_EVENT_DYNAMIC 0x0040 /* dynamic alloc'd constraint */ +#define PERF_X86_EVENT_RDPMC_ALLOWED 0x0080 /* grant rdpmc permission */ +#define PERF_X86_EVENT_EXCL_ACCT 0x0100 /* accounted EXCL event */ +#define PERF_X86_EVENT_AUTO_RELOAD 0x0200 /* use PEBS auto-reload */ +#define PERF_X86_EVENT_LARGE_PEBS 0x0400 /* use large PEBS */ struct amd_nb { int nb_id; /* NorthBridge id */ @@ -96,25 +101,43 @@ struct amd_nb { PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER | \ PERF_SAMPLE_PERIOD) -#define PEBS_REGS \ - (PERF_REG_X86_AX | \ - PERF_REG_X86_BX | \ - PERF_REG_X86_CX | \ - PERF_REG_X86_DX | \ - PERF_REG_X86_DI | \ - PERF_REG_X86_SI | \ - PERF_REG_X86_SP | \ - PERF_REG_X86_BP | \ - PERF_REG_X86_IP | \ - PERF_REG_X86_FLAGS | \ - PERF_REG_X86_R8 | \ - PERF_REG_X86_R9 | \ - PERF_REG_X86_R10 | \ - PERF_REG_X86_R11 | \ - PERF_REG_X86_R12 | \ - PERF_REG_X86_R13 | \ - PERF_REG_X86_R14 | \ - PERF_REG_X86_R15) +#define PEBS_GP_REGS \ + ((1ULL << PERF_REG_X86_AX) | \ + (1ULL << PERF_REG_X86_BX) | \ + (1ULL << PERF_REG_X86_CX) | \ + (1ULL << PERF_REG_X86_DX) | \ + (1ULL << PERF_REG_X86_DI) | \ + (1ULL << PERF_REG_X86_SI) | \ + (1ULL << PERF_REG_X86_SP) | \ + (1ULL << PERF_REG_X86_BP) | \ + (1ULL << PERF_REG_X86_IP) | \ + (1ULL << PERF_REG_X86_FLAGS) | \ + (1ULL << PERF_REG_X86_R8) | \ + (1ULL << PERF_REG_X86_R9) | \ + (1ULL << PERF_REG_X86_R10) | \ + (1ULL << PERF_REG_X86_R11) | \ + (1ULL << PERF_REG_X86_R12) | \ + (1ULL << PERF_REG_X86_R13) | \ + (1ULL << PERF_REG_X86_R14) | \ + (1ULL << PERF_REG_X86_R15)) + +#define PEBS_XMM_REGS \ + ((1ULL << PERF_REG_X86_XMM0) | \ + (1ULL << PERF_REG_X86_XMM1) | \ + (1ULL << PERF_REG_X86_XMM2) | \ + (1ULL << PERF_REG_X86_XMM3) | \ + (1ULL << PERF_REG_X86_XMM4) | \ + (1ULL << PERF_REG_X86_XMM5) | \ + (1ULL << PERF_REG_X86_XMM6) | \ + (1ULL << PERF_REG_X86_XMM7) | \ + (1ULL << PERF_REG_X86_XMM8) | \ + (1ULL << PERF_REG_X86_XMM9) | \ + (1ULL << PERF_REG_X86_XMM10) | \ + (1ULL << PERF_REG_X86_XMM11) | \ + (1ULL << PERF_REG_X86_XMM12) | \ + (1ULL << PERF_REG_X86_XMM13) | \ + (1ULL << PERF_REG_X86_XMM14) | \ + (1ULL << PERF_REG_X86_XMM15)) /* * Per register state. @@ -207,10 +230,16 @@ struct cpu_hw_events { int n_pebs; int n_large_pebs; + /* Current super set of events hardware configuration */ + u64 pebs_data_cfg; + u64 active_pebs_data_cfg; + int pebs_record_size; + /* * Intel LBR bits */ int lbr_users; + int lbr_pebs_users; struct perf_branch_stack lbr_stack; struct perf_branch_entry lbr_entries[MAX_LBR_ENTRIES]; struct er_account *lbr_sel; @@ -257,18 +286,29 @@ struct cpu_hw_events { void *kfree_on_online[X86_PERF_KFREE_MAX]; }; -#define __EVENT_CONSTRAINT(c, n, m, w, o, f) {\ +#define __EVENT_CONSTRAINT_RANGE(c, e, n, m, w, o, f) { \ { .idxmsk64 = (n) }, \ .code = (c), \ + .size = (e) - (c), \ .cmask = (m), \ .weight = (w), \ .overlap = (o), \ .flags = f, \ } +#define __EVENT_CONSTRAINT(c, n, m, w, o, f) \ + __EVENT_CONSTRAINT_RANGE(c, c, n, m, w, o, f) + #define EVENT_CONSTRAINT(c, n, m) \ __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 0, 0) +/* + * The constraint_match() function only works for 'simple' event codes + * and not for extended (AMD64_EVENTSEL_EVENT) events codes. + */ +#define EVENT_CONSTRAINT_RANGE(c, e, n, m) \ + __EVENT_CONSTRAINT_RANGE(c, e, n, m, HWEIGHT(n), 0, 0) + #define INTEL_EXCLEVT_CONSTRAINT(c, n) \ __EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT, HWEIGHT(n),\ 0, PERF_X86_EVENT_EXCL) @@ -304,6 +344,12 @@ struct cpu_hw_events { EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT) /* + * Constraint on a range of Event codes + */ +#define INTEL_EVENT_CONSTRAINT_RANGE(c, e, n) \ + EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT) + +/* * Constraint on the Event code + UMask + fixed-mask * * filter mask to validate fixed counter events. @@ -350,6 +396,9 @@ struct cpu_hw_events { #define INTEL_FLAGS_EVENT_CONSTRAINT(c, n) \ EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS) +#define INTEL_FLAGS_EVENT_CONSTRAINT_RANGE(c, e, n) \ + EVENT_CONSTRAINT_RANGE(c, e, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS) + /* Check only flags, but allow all event/umask */ #define INTEL_ALL_EVENT_CONSTRAINT(code, n) \ EVENT_CONSTRAINT(code, n, X86_ALL_EVENT_FLAGS) @@ -366,6 +415,11 @@ struct cpu_hw_events { ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW) +#define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(code, end, n) \ + __EVENT_CONSTRAINT_RANGE(code, end, n, \ + ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \ + HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW) + #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(code, n) \ __EVENT_CONSTRAINT(code, n, \ ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \ @@ -473,6 +527,7 @@ union perf_capabilities { * values > 32bit. */ u64 full_width_write:1; + u64 pebs_baseline:1; }; u64 capabilities; }; @@ -613,14 +668,16 @@ struct x86_pmu { pebs_broken :1, pebs_prec_dist :1, pebs_no_tlb :1, - pebs_no_isolation :1; + pebs_no_isolation :1, + pebs_no_xmm_regs :1; int pebs_record_size; int pebs_buffer_size; + int max_pebs_events; void (*drain_pebs)(struct pt_regs *regs); struct event_constraint *pebs_constraints; void (*pebs_aliases)(struct perf_event *event); - int max_pebs_events; unsigned long large_pebs_flags; + u64 rtm_abort_event; /* * Intel LBR @@ -714,6 +771,7 @@ static struct perf_pmu_events_ht_attr event_attr_##v = { \ .event_str_ht = ht, \ } +struct pmu *x86_get_pmu(void); extern struct x86_pmu x86_pmu __read_mostly; static inline bool x86_pmu_has_lbr_callstack(void) @@ -941,6 +999,8 @@ extern struct event_constraint intel_bdw_pebs_event_constraints[]; extern struct event_constraint intel_skl_pebs_event_constraints[]; +extern struct event_constraint intel_icl_pebs_event_constraints[]; + struct event_constraint *intel_pebs_constraints(struct perf_event *event); void intel_pmu_pebs_add(struct perf_event *event); @@ -959,6 +1019,8 @@ void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in); void intel_pmu_auto_reload_read(struct perf_event *event); +void intel_pmu_store_pebs_lbrs(struct pebs_lbr *lbr); + void intel_ds_init(void); void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in); diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c index 6461a16b4559..e4ba467a9fc6 100644 --- a/arch/x86/hyperv/hv_init.c +++ b/arch/x86/hyperv/hv_init.c @@ -103,9 +103,13 @@ static int hv_cpu_init(unsigned int cpu) u64 msr_vp_index; struct hv_vp_assist_page **hvp = &hv_vp_assist_page[smp_processor_id()]; void **input_arg; + struct page *pg; input_arg = (void **)this_cpu_ptr(hyperv_pcpu_input_arg); - *input_arg = page_address(alloc_page(GFP_KERNEL)); + pg = alloc_page(GFP_KERNEL); + if (unlikely(!pg)) + return -ENOMEM; + *input_arg = page_address(pg); hv_get_vp_index(msr_vp_index); diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index 321fe5f5d0e9..4d5fcd47ab75 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -61,9 +61,8 @@ } while (0) #define RELOAD_SEG(seg) { \ - unsigned int pre = GET_SEG(seg); \ + unsigned int pre = (seg) | 3; \ unsigned int cur = get_user_seg(seg); \ - pre |= 3; \ if (pre != cur) \ set_user_seg(seg, pre); \ } @@ -72,6 +71,7 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, struct sigcontext_32 __user *sc) { unsigned int tmpflags, err = 0; + u16 gs, fs, es, ds; void __user *buf; u32 tmp; @@ -79,16 +79,10 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, current->restart_block.fn = do_no_restart_syscall; get_user_try { - /* - * Reload fs and gs if they have changed in the signal - * handler. This does not handle long fs/gs base changes in - * the handler, but does not clobber them at least in the - * normal case. - */ - RELOAD_SEG(gs); - RELOAD_SEG(fs); - RELOAD_SEG(ds); - RELOAD_SEG(es); + gs = GET_SEG(gs); + fs = GET_SEG(fs); + ds = GET_SEG(ds); + es = GET_SEG(es); COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx); COPY(dx); COPY(cx); COPY(ip); COPY(ax); @@ -106,6 +100,17 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, buf = compat_ptr(tmp); } get_user_catch(err); + /* + * Reload fs and gs if they have changed in the signal + * handler. This does not handle long fs/gs base changes in + * the handler, but does not clobber them at least in the + * normal case. + */ + RELOAD_SEG(gs); + RELOAD_SEG(fs); + RELOAD_SEG(ds); + RELOAD_SEG(es); + err |= fpu__restore_sig(buf, 1); force_iret(); diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h index 31b627b43a8e..464034db299f 100644 --- a/arch/x86/include/asm/alternative-asm.h +++ b/arch/x86/include/asm/alternative-asm.h @@ -20,6 +20,17 @@ #endif /* + * objtool annotation to ignore the alternatives and only consider the original + * instruction(s). + */ +.macro ANNOTATE_IGNORE_ALTERNATIVE + .Lannotate_\@: + .pushsection .discard.ignore_alts + .long .Lannotate_\@ - . + .popsection +.endm + +/* * Issue one struct alt_instr descriptor entry (need to put it into * the section .altinstructions, see below). This entry contains * enough information for the alternatives patching code to patch an diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index 4c74073a19cc..094fbc9c0b1c 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -45,6 +45,16 @@ #define LOCK_PREFIX "" #endif +/* + * objtool annotation to ignore the alternatives and only consider the original + * instruction(s). + */ +#define ANNOTATE_IGNORE_ALTERNATIVE \ + "999:\n\t" \ + ".pushsection .discard.ignore_alts\n\t" \ + ".long 999b - .\n\t" \ + ".popsection\n\t" + struct alt_instr { s32 instr_offset; /* original instruction */ s32 repl_offset; /* offset to replacement instruction */ diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h index 6467757bb39f..3ff577c0b102 100644 --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -148,30 +148,6 @@ _ASM_PTR (entry); \ .popsection -.macro ALIGN_DESTINATION - /* check for bad alignment of destination */ - movl %edi,%ecx - andl $7,%ecx - jz 102f /* already aligned */ - subl $8,%ecx - negl %ecx - subl %ecx,%edx -100: movb (%rsi),%al -101: movb %al,(%rdi) - incq %rsi - incq %rdi - decl %ecx - jnz 100b -102: - .section .fixup,"ax" -103: addl %ecx,%edx /* ecx is zerorest also */ - jmp copy_user_handle_tail - .previous - - _ASM_EXTABLE_UA(100b, 103b) - _ASM_EXTABLE_UA(101b, 103b) - .endm - #else # define _EXPAND_EXTABLE_HANDLE(x) #x # define _ASM_EXTABLE_HANDLE(from, to, handler) \ diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index d153d570bb04..8e790ec219a5 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -36,16 +36,17 @@ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1). */ -#define BITOP_ADDR(x) "+m" (*(volatile long *) (x)) +#define RLONG_ADDR(x) "m" (*(volatile long *) (x)) +#define WBYTE_ADDR(x) "+m" (*(volatile char *) (x)) -#define ADDR BITOP_ADDR(addr) +#define ADDR RLONG_ADDR(addr) /* * We do the locked ops that don't return the old value as * a mask operation on a byte. */ #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr)) -#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3)) +#define CONST_MASK_ADDR(nr, addr) WBYTE_ADDR((void *)(addr) + ((nr)>>3)) #define CONST_MASK(nr) (1 << ((nr) & 7)) /** @@ -73,7 +74,7 @@ set_bit(long nr, volatile unsigned long *addr) : "memory"); } else { asm volatile(LOCK_PREFIX __ASM_SIZE(bts) " %1,%0" - : BITOP_ADDR(addr) : "Ir" (nr) : "memory"); + : : RLONG_ADDR(addr), "Ir" (nr) : "memory"); } } @@ -88,7 +89,7 @@ set_bit(long nr, volatile unsigned long *addr) */ static __always_inline void __set_bit(long nr, volatile unsigned long *addr) { - asm volatile(__ASM_SIZE(bts) " %1,%0" : ADDR : "Ir" (nr) : "memory"); + asm volatile(__ASM_SIZE(bts) " %1,%0" : : ADDR, "Ir" (nr) : "memory"); } /** @@ -110,8 +111,7 @@ clear_bit(long nr, volatile unsigned long *addr) : "iq" ((u8)~CONST_MASK(nr))); } else { asm volatile(LOCK_PREFIX __ASM_SIZE(btr) " %1,%0" - : BITOP_ADDR(addr) - : "Ir" (nr)); + : : RLONG_ADDR(addr), "Ir" (nr) : "memory"); } } @@ -131,7 +131,7 @@ static __always_inline void clear_bit_unlock(long nr, volatile unsigned long *ad static __always_inline void __clear_bit(long nr, volatile unsigned long *addr) { - asm volatile(__ASM_SIZE(btr) " %1,%0" : ADDR : "Ir" (nr)); + asm volatile(__ASM_SIZE(btr) " %1,%0" : : ADDR, "Ir" (nr) : "memory"); } static __always_inline bool clear_bit_unlock_is_negative_byte(long nr, volatile unsigned long *addr) @@ -139,7 +139,7 @@ static __always_inline bool clear_bit_unlock_is_negative_byte(long nr, volatile bool negative; asm volatile(LOCK_PREFIX "andb %2,%1" CC_SET(s) - : CC_OUT(s) (negative), ADDR + : CC_OUT(s) (negative), WBYTE_ADDR(addr) : "ir" ((char) ~(1 << nr)) : "memory"); return negative; } @@ -155,13 +155,9 @@ static __always_inline bool clear_bit_unlock_is_negative_byte(long nr, volatile * __clear_bit() is non-atomic and implies release semantics before the memory * operation. It can be used for an unlock if no other CPUs can concurrently * modify other bits in the word. - * - * No memory barrier is required here, because x86 cannot reorder stores past - * older loads. Same principle as spin_unlock. */ static __always_inline void __clear_bit_unlock(long nr, volatile unsigned long *addr) { - barrier(); __clear_bit(nr, addr); } @@ -176,7 +172,7 @@ static __always_inline void __clear_bit_unlock(long nr, volatile unsigned long * */ static __always_inline void __change_bit(long nr, volatile unsigned long *addr) { - asm volatile(__ASM_SIZE(btc) " %1,%0" : ADDR : "Ir" (nr)); + asm volatile(__ASM_SIZE(btc) " %1,%0" : : ADDR, "Ir" (nr) : "memory"); } /** @@ -196,8 +192,7 @@ static __always_inline void change_bit(long nr, volatile unsigned long *addr) : "iq" ((u8)CONST_MASK(nr))); } else { asm volatile(LOCK_PREFIX __ASM_SIZE(btc) " %1,%0" - : BITOP_ADDR(addr) - : "Ir" (nr)); + : : RLONG_ADDR(addr), "Ir" (nr) : "memory"); } } @@ -242,8 +237,8 @@ static __always_inline bool __test_and_set_bit(long nr, volatile unsigned long * asm(__ASM_SIZE(bts) " %2,%1" CC_SET(c) - : CC_OUT(c) (oldbit), ADDR - : "Ir" (nr)); + : CC_OUT(c) (oldbit) + : ADDR, "Ir" (nr) : "memory"); return oldbit; } @@ -282,8 +277,8 @@ static __always_inline bool __test_and_clear_bit(long nr, volatile unsigned long asm volatile(__ASM_SIZE(btr) " %2,%1" CC_SET(c) - : CC_OUT(c) (oldbit), ADDR - : "Ir" (nr)); + : CC_OUT(c) (oldbit) + : ADDR, "Ir" (nr) : "memory"); return oldbit; } @@ -294,8 +289,8 @@ static __always_inline bool __test_and_change_bit(long nr, volatile unsigned lon asm volatile(__ASM_SIZE(btc) " %2,%1" CC_SET(c) - : CC_OUT(c) (oldbit), ADDR - : "Ir" (nr) : "memory"); + : CC_OUT(c) (oldbit) + : ADDR, "Ir" (nr) : "memory"); return oldbit; } @@ -326,7 +321,7 @@ static __always_inline bool variable_test_bit(long nr, volatile const unsigned l asm volatile(__ASM_SIZE(bt) " %2,%1" CC_SET(c) : CC_OUT(c) (oldbit) - : "m" (*(unsigned long *)addr), "Ir" (nr)); + : "m" (*(unsigned long *)addr), "Ir" (nr) : "memory"); return oldbit; } diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h index 3417110574c1..31c379c1da41 100644 --- a/arch/x86/include/asm/cpu_device_id.h +++ b/arch/x86/include/asm/cpu_device_id.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _CPU_DEVICE_ID -#define _CPU_DEVICE_ID 1 +#ifndef _ASM_X86_CPU_DEVICE_ID +#define _ASM_X86_CPU_DEVICE_ID /* * Declare drivers belonging to specific x86 CPUs @@ -9,8 +9,6 @@ #include <linux/mod_devicetable.h> -extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); - /* * Match specific microcode revisions. * @@ -22,21 +20,22 @@ extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); */ struct x86_cpu_desc { - __u8 x86_family; - __u8 x86_vendor; - __u8 x86_model; - __u8 x86_stepping; - __u32 x86_microcode_rev; + u8 x86_family; + u8 x86_vendor; + u8 x86_model; + u8 x86_stepping; + u32 x86_microcode_rev; }; -#define INTEL_CPU_DESC(mod, step, rev) { \ - .x86_family = 6, \ - .x86_vendor = X86_VENDOR_INTEL, \ - .x86_model = mod, \ - .x86_stepping = step, \ - .x86_microcode_rev = rev, \ +#define INTEL_CPU_DESC(model, stepping, revision) { \ + .x86_family = 6, \ + .x86_vendor = X86_VENDOR_INTEL, \ + .x86_model = (model), \ + .x86_stepping = (stepping), \ + .x86_microcode_rev = (revision), \ } +extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match); extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table); -#endif +#endif /* _ASM_X86_CPU_DEVICE_ID */ diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index ce95b8cbd229..1d337c51f7e6 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -112,8 +112,9 @@ extern const char * const x86_bug_flags[NBUGINTS*32]; test_cpu_cap(c, bit)) #define this_cpu_has(bit) \ - (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ - x86_this_cpu_test_bit(bit, (unsigned long *)&cpu_info.x86_capability)) + (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ + x86_this_cpu_test_bit(bit, \ + (unsigned long __percpu *)&cpu_info.x86_capability)) /* * This macro is for detection of features which need kernel @@ -155,11 +156,14 @@ extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit); #else /* - * Static testing of CPU features. Used the same as boot_cpu_has(). - * These will statically patch the target code for additional - * performance. + * Static testing of CPU features. Used the same as boot_cpu_has(). It + * statically patches the target code for additional performance. Use + * static_cpu_has() only in fast paths, where every cycle counts. Which + * means that the boot_cpu_has() variant is already fast enough for the + * majority of cases and you should stick to using it as it is generally + * only two instructions: a RIP-relative MOV and a TEST. */ -static __always_inline __pure bool _static_cpu_has(u16 bit) +static __always_inline bool _static_cpu_has(u16 bit) { asm_volatile_goto("1: jmp 6f\n" "2:\n" diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index fb04a3ded7dd..745a19d34f23 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -253,7 +253,7 @@ static inline void copy_xregs_to_kernel_booting(struct xregs_state *xstate) WARN_ON(system_state != SYSTEM_BOOTING); - if (static_cpu_has(X86_FEATURE_XSAVES)) + if (boot_cpu_has(X86_FEATURE_XSAVES)) XSTATE_OP(XSAVES, xstate, lmask, hmask, err); else XSTATE_OP(XSAVE, xstate, lmask, hmask, err); @@ -275,7 +275,7 @@ static inline void copy_kernel_to_xregs_booting(struct xregs_state *xstate) WARN_ON(system_state != SYSTEM_BOOTING); - if (static_cpu_has(X86_FEATURE_XSAVES)) + if (boot_cpu_has(X86_FEATURE_XSAVES)) XSTATE_OP(XRSTORS, xstate, lmask, hmask, err); else XSTATE_OP(XRSTOR, xstate, lmask, hmask, err); @@ -497,8 +497,7 @@ static inline void fpregs_activate(struct fpu *fpu) * - switch_fpu_finish() restores the new state as * necessary. */ -static inline void -switch_fpu_prepare(struct fpu *old_fpu, int cpu) +static inline void switch_fpu_prepare(struct fpu *old_fpu, int cpu) { if (static_cpu_has(X86_FEATURE_FPU) && old_fpu->initialized) { if (!copy_fpregs_to_fpstate(old_fpu)) diff --git a/arch/x86/include/asm/intel_ds.h b/arch/x86/include/asm/intel_ds.h index ae26df1c2789..8380c3ddd4b2 100644 --- a/arch/x86/include/asm/intel_ds.h +++ b/arch/x86/include/asm/intel_ds.h @@ -8,7 +8,7 @@ /* The maximal number of PEBS events: */ #define MAX_PEBS_EVENTS 8 -#define MAX_FIXED_PEBS_EVENTS 3 +#define MAX_FIXED_PEBS_EVENTS 4 /* * A debug store configuration. diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index 93c4bf598fb0..feab24cac610 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -226,7 +226,9 @@ struct x86_emulate_ops { unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt); void (*set_hflags)(struct x86_emulate_ctxt *ctxt, unsigned hflags); - int (*pre_leave_smm)(struct x86_emulate_ctxt *ctxt, u64 smbase); + int (*pre_leave_smm)(struct x86_emulate_ctxt *ctxt, + const char *smstate); + void (*post_leave_smm)(struct x86_emulate_ctxt *ctxt); }; diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index a5db4475e72d..c79abe7ca093 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -126,7 +126,7 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) } #define KVM_PERMILLE_MMU_PAGES 20 -#define KVM_MIN_ALLOC_MMU_PAGES 64 +#define KVM_MIN_ALLOC_MMU_PAGES 64UL #define KVM_MMU_HASH_SHIFT 12 #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) #define KVM_MIN_FREE_MMU_PAGES 5 @@ -253,14 +253,14 @@ struct kvm_mmu_memory_cache { * kvm_memory_slot.arch.gfn_track which is 16 bits, so the role bits used * by indirect shadow page can not be more than 15 bits. * - * Currently, we used 14 bits that are @level, @cr4_pae, @quadrant, @access, + * Currently, we used 14 bits that are @level, @gpte_is_8_bytes, @quadrant, @access, * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp. */ union kvm_mmu_page_role { u32 word; struct { unsigned level:4; - unsigned cr4_pae:1; + unsigned gpte_is_8_bytes:1; unsigned quadrant:2; unsigned direct:1; unsigned access:3; @@ -295,6 +295,7 @@ union kvm_mmu_extended_role { unsigned int valid:1; unsigned int execonly:1; unsigned int cr0_pg:1; + unsigned int cr4_pae:1; unsigned int cr4_pse:1; unsigned int cr4_pke:1; unsigned int cr4_smap:1; @@ -350,6 +351,7 @@ struct kvm_mmu_page { }; struct kvm_pio_request { + unsigned long linear_rip; unsigned long count; int in; int port; @@ -568,6 +570,7 @@ struct kvm_vcpu_arch { bool tpr_access_reporting; u64 ia32_xss; u64 microcode_version; + u64 arch_capabilities; /* * Paging state of the vcpu @@ -842,9 +845,9 @@ enum kvm_irqchip_mode { }; struct kvm_arch { - unsigned int n_used_mmu_pages; - unsigned int n_requested_mmu_pages; - unsigned int n_max_mmu_pages; + unsigned long n_used_mmu_pages; + unsigned long n_requested_mmu_pages; + unsigned long n_max_mmu_pages; unsigned int indirect_shadow_pages; struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; /* @@ -1180,7 +1183,7 @@ struct kvm_x86_ops { int (*smi_allowed)(struct kvm_vcpu *vcpu); int (*pre_enter_smm)(struct kvm_vcpu *vcpu, char *smstate); - int (*pre_leave_smm)(struct kvm_vcpu *vcpu, u64 smbase); + int (*pre_leave_smm)(struct kvm_vcpu *vcpu, const char *smstate); int (*enable_smi_window)(struct kvm_vcpu *vcpu); int (*mem_enc_op)(struct kvm *kvm, void __user *argp); @@ -1192,6 +1195,8 @@ struct kvm_x86_ops { int (*nested_enable_evmcs)(struct kvm_vcpu *vcpu, uint16_t *vmcs_version); uint16_t (*nested_get_evmcs_version)(struct kvm_vcpu *vcpu); + + bool (*need_emulation_on_page_fault)(struct kvm_vcpu *vcpu); }; struct kvm_arch_async_pf { @@ -1252,8 +1257,8 @@ void kvm_mmu_clear_dirty_pt_masked(struct kvm *kvm, gfn_t gfn_offset, unsigned long mask); void kvm_mmu_zap_all(struct kvm *kvm); void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, u64 gen); -unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm); -void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages); +unsigned long kvm_mmu_calculate_default_mmu_pages(struct kvm *kvm); +void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned long kvm_nr_mmu_pages); int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3); bool pdptrs_changed(struct kvm_vcpu *vcpu); @@ -1588,4 +1593,7 @@ static inline int kvm_cpu_get_apicid(int mps_cpu) #define put_smstate(type, buf, offset, val) \ *(type *)((buf) + (offset) - 0x7e00) = val +#define GET_SMSTATE(type, buf, offset) \ + (*(type *)((buf) + (offset) - 0x7e00)) + #endif /* _ASM_X86_KVM_HOST_H */ diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index ca5bc0eacb95..1378518cf63f 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -116,6 +116,7 @@ #define LBR_INFO_CYCLES 0xffff #define MSR_IA32_PEBS_ENABLE 0x000003f1 +#define MSR_PEBS_DATA_CFG 0x000003f2 #define MSR_IA32_DS_AREA 0x00000600 #define MSR_IA32_PERF_CAPABILITIES 0x00000345 #define MSR_PEBS_LD_LAT_THRESHOLD 0x000003f6 diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h index dad12b767ba0..daf25b60c9e3 100644 --- a/arch/x86/include/asm/nospec-branch.h +++ b/arch/x86/include/asm/nospec-branch.h @@ -11,6 +11,15 @@ #include <asm/msr-index.h> /* + * This should be used immediately before a retpoline alternative. It tells + * objtool where the retpolines are so that it can make sense of the control + * flow by just reading the original instruction(s) and ignoring the + * alternatives. + */ +#define ANNOTATE_NOSPEC_ALTERNATIVE \ + ANNOTATE_IGNORE_ALTERNATIVE + +/* * Fill the CPU return stack buffer. * * Each entry in the RSB, if used for a speculative 'ret', contains an @@ -57,19 +66,6 @@ #ifdef __ASSEMBLY__ /* - * This should be used immediately before a retpoline alternative. It tells - * objtool where the retpolines are so that it can make sense of the control - * flow by just reading the original instruction(s) and ignoring the - * alternatives. - */ -.macro ANNOTATE_NOSPEC_ALTERNATIVE - .Lannotate_\@: - .pushsection .discard.nospec - .long .Lannotate_\@ - . - .popsection -.endm - -/* * This should be used immediately before an indirect jump/call. It tells * objtool the subsequent indirect jump/call is vouched safe for retpoline * builds. @@ -152,12 +148,6 @@ #else /* __ASSEMBLY__ */ -#define ANNOTATE_NOSPEC_ALTERNATIVE \ - "999:\n\t" \ - ".pushsection .discard.nospec\n\t" \ - ".long 999b - .\n\t" \ - ".popsection\n\t" - #define ANNOTATE_RETPOLINE_SAFE \ "999:\n\t" \ ".pushsection .discard.retpoline_safe\n\t" \ diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index 8bdf74902293..1392d5e6e8d6 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -7,7 +7,7 @@ */ #define INTEL_PMC_MAX_GENERIC 32 -#define INTEL_PMC_MAX_FIXED 3 +#define INTEL_PMC_MAX_FIXED 4 #define INTEL_PMC_IDX_FIXED 32 #define X86_PMC_IDX_MAX 64 @@ -32,6 +32,8 @@ #define HSW_IN_TX (1ULL << 32) #define HSW_IN_TX_CHECKPOINTED (1ULL << 33) +#define ICL_EVENTSEL_ADAPTIVE (1ULL << 34) +#define ICL_FIXED_0_ADAPTIVE (1ULL << 32) #define AMD64_EVENTSEL_INT_CORE_ENABLE (1ULL << 36) #define AMD64_EVENTSEL_GUESTONLY (1ULL << 40) @@ -87,6 +89,12 @@ #define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6 #define ARCH_PERFMON_EVENTS_COUNT 7 +#define PEBS_DATACFG_MEMINFO BIT_ULL(0) +#define PEBS_DATACFG_GP BIT_ULL(1) +#define PEBS_DATACFG_XMMS BIT_ULL(2) +#define PEBS_DATACFG_LBRS BIT_ULL(3) +#define PEBS_DATACFG_LBR_SHIFT 24 + /* * Intel "Architectural Performance Monitoring" CPUID * detection/enumeration details: @@ -177,6 +185,41 @@ struct x86_pmu_capability { #define GLOBAL_STATUS_TRACE_TOPAPMI BIT_ULL(55) /* + * Adaptive PEBS v4 + */ + +struct pebs_basic { + u64 format_size; + u64 ip; + u64 applicable_counters; + u64 tsc; +}; + +struct pebs_meminfo { + u64 address; + u64 aux; + u64 latency; + u64 tsx_tuning; +}; + +struct pebs_gprs { + u64 flags, ip, ax, cx, dx, bx, sp, bp, si, di; + u64 r8, r9, r10, r11, r12, r13, r14, r15; +}; + +struct pebs_xmm { + u64 xmm[16*2]; /* two entries for each register */ +}; + +struct pebs_lbr_entry { + u64 from, to, info; +}; + +struct pebs_lbr { + struct pebs_lbr_entry lbr[0]; /* Variable length */ +}; + +/* * IBS cpuid feature detection */ @@ -248,6 +291,11 @@ extern void perf_events_lapic_init(void); #define PERF_EFLAGS_VM (1UL << 5) struct pt_regs; +struct x86_perf_regs { + struct pt_regs regs; + u64 *xmm_regs; +}; + extern unsigned long perf_instruction_pointer(struct pt_regs *regs); extern unsigned long perf_misc_flags(struct pt_regs *regs); #define perf_misc_flags(regs) perf_misc_flags(regs) @@ -260,14 +308,9 @@ extern unsigned long perf_misc_flags(struct pt_regs *regs); */ #define perf_arch_fetch_caller_regs(regs, __ip) { \ (regs)->ip = (__ip); \ - (regs)->bp = caller_frame_pointer(); \ + (regs)->sp = (unsigned long)__builtin_frame_address(0); \ (regs)->cs = __KERNEL_CS; \ regs->flags = 0; \ - asm volatile( \ - _ASM_MOV "%%"_ASM_SP ", %0\n" \ - : "=m" ((regs)->sp) \ - :: "memory" \ - ); \ } struct perf_guest_switch_msr { diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 2779ace16d23..50b3e2d963c9 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -46,7 +46,7 @@ void ptdump_walk_user_pgd_level_checkwx(void); */ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)] __visible; -#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) +#define ZERO_PAGE(vaddr) ((void)(vaddr),virt_to_page(empty_zero_page)) extern spinlock_t pgd_lock; extern struct list_head pgd_list; diff --git a/arch/x86/include/asm/processor-cyrix.h b/arch/x86/include/asm/processor-cyrix.h index aaedd73ea2c6..df700a6cc869 100644 --- a/arch/x86/include/asm/processor-cyrix.h +++ b/arch/x86/include/asm/processor-cyrix.h @@ -3,19 +3,6 @@ * NSC/Cyrix CPU indexed register access. Must be inlined instead of * macros to ensure correct access ordering * Access order is always 0x22 (=offset), 0x23 (=value) - * - * When using the old macros a line like - * setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); - * gets expanded to: - * do { - * outb((CX86_CCR2), 0x22); - * outb((({ - * outb((CX86_CCR2), 0x22); - * inb(0x23); - * }) | 0x88), 0x23); - * } while (0); - * - * which in fact violates the access order (= 0x22, 0x22, 0x23, 0x23). */ static inline u8 getCx86(u8 reg) @@ -29,11 +16,3 @@ static inline void setCx86(u8 reg, u8 data) outb(reg, 0x22); outb(data, 0x23); } - -#define getCx86_old(reg) ({ outb((reg), 0x22); inb(0x23); }) - -#define setCx86_old(reg, data) do { \ - outb((reg), 0x22); \ - outb((data), 0x23); \ -} while (0) - diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h index 63b3393bd98e..c53682303c9c 100644 --- a/arch/x86/include/asm/realmode.h +++ b/arch/x86/include/asm/realmode.h @@ -77,7 +77,11 @@ static inline size_t real_mode_size_needed(void) return ALIGN(real_mode_blob_end - real_mode_blob, PAGE_SIZE); } -void set_real_mode_mem(phys_addr_t mem, size_t size); +static inline void set_real_mode_mem(phys_addr_t mem) +{ + real_mode_header = (struct real_mode_header *) __va(mem); +} + void reserve_real_mode(void); #endif /* __ASSEMBLY__ */ diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h deleted file mode 100644 index 4c25cf6caefa..000000000000 --- a/arch/x86/include/asm/rwsem.h +++ /dev/null @@ -1,237 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* rwsem.h: R/W semaphores implemented using XADD/CMPXCHG for i486+ - * - * Written by David Howells (dhowells@redhat.com). - * - * Derived from asm-x86/semaphore.h - * - * - * The MSW of the count is the negated number of active writers and waiting - * lockers, and the LSW is the total number of active locks - * - * The lock count is initialized to 0 (no active and no waiting lockers). - * - * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an - * uncontended lock. This can be determined because XADD returns the old value. - * Readers increment by 1 and see a positive value when uncontended, negative - * if there are writers (and maybe) readers waiting (in which case it goes to - * sleep). - * - * The value of WAITING_BIAS supports up to 32766 waiting processes. This can - * be extended to 65534 by manually checking the whole MSW rather than relying - * on the S flag. - * - * The value of ACTIVE_BIAS supports up to 65535 active processes. - * - * This should be totally fair - if anything is waiting, a process that wants a - * lock will go to the back of the queue. When the currently active lock is - * released, if there's a writer at the front of the queue, then that and only - * that will be woken up; if there's a bunch of consecutive readers at the - * front, then they'll all be woken up, but no other readers will be. - */ - -#ifndef _ASM_X86_RWSEM_H -#define _ASM_X86_RWSEM_H - -#ifndef _LINUX_RWSEM_H -#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead" -#endif - -#ifdef __KERNEL__ -#include <asm/asm.h> - -/* - * The bias values and the counter type limits the number of - * potential readers/writers to 32767 for 32 bits and 2147483647 - * for 64 bits. - */ - -#ifdef CONFIG_X86_64 -# define RWSEM_ACTIVE_MASK 0xffffffffL -#else -# define RWSEM_ACTIVE_MASK 0x0000ffffL -#endif - -#define RWSEM_UNLOCKED_VALUE 0x00000000L -#define RWSEM_ACTIVE_BIAS 0x00000001L -#define RWSEM_WAITING_BIAS (-RWSEM_ACTIVE_MASK-1) -#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS -#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) - -/* - * lock for reading - */ -#define ____down_read(sem, slow_path) \ -({ \ - struct rw_semaphore* ret; \ - asm volatile("# beginning down_read\n\t" \ - LOCK_PREFIX _ASM_INC "(%[sem])\n\t" \ - /* adds 0x00000001 */ \ - " jns 1f\n" \ - " call " slow_path "\n" \ - "1:\n\t" \ - "# ending down_read\n\t" \ - : "+m" (sem->count), "=a" (ret), \ - ASM_CALL_CONSTRAINT \ - : [sem] "a" (sem) \ - : "memory", "cc"); \ - ret; \ -}) - -static inline void __down_read(struct rw_semaphore *sem) -{ - ____down_read(sem, "call_rwsem_down_read_failed"); -} - -static inline int __down_read_killable(struct rw_semaphore *sem) -{ - if (IS_ERR(____down_read(sem, "call_rwsem_down_read_failed_killable"))) - return -EINTR; - return 0; -} - -/* - * trylock for reading -- returns 1 if successful, 0 if contention - */ -static inline bool __down_read_trylock(struct rw_semaphore *sem) -{ - long result, tmp; - asm volatile("# beginning __down_read_trylock\n\t" - " mov %[count],%[result]\n\t" - "1:\n\t" - " mov %[result],%[tmp]\n\t" - " add %[inc],%[tmp]\n\t" - " jle 2f\n\t" - LOCK_PREFIX " cmpxchg %[tmp],%[count]\n\t" - " jnz 1b\n\t" - "2:\n\t" - "# ending __down_read_trylock\n\t" - : [count] "+m" (sem->count), [result] "=&a" (result), - [tmp] "=&r" (tmp) - : [inc] "i" (RWSEM_ACTIVE_READ_BIAS) - : "memory", "cc"); - return result >= 0; -} - -/* - * lock for writing - */ -#define ____down_write(sem, slow_path) \ -({ \ - long tmp; \ - struct rw_semaphore* ret; \ - \ - asm volatile("# beginning down_write\n\t" \ - LOCK_PREFIX " xadd %[tmp],(%[sem])\n\t" \ - /* adds 0xffff0001, returns the old value */ \ - " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" \ - /* was the active mask 0 before? */\ - " jz 1f\n" \ - " call " slow_path "\n" \ - "1:\n" \ - "# ending down_write" \ - : "+m" (sem->count), [tmp] "=d" (tmp), \ - "=a" (ret), ASM_CALL_CONSTRAINT \ - : [sem] "a" (sem), "[tmp]" (RWSEM_ACTIVE_WRITE_BIAS) \ - : "memory", "cc"); \ - ret; \ -}) - -static inline void __down_write(struct rw_semaphore *sem) -{ - ____down_write(sem, "call_rwsem_down_write_failed"); -} - -static inline int __down_write_killable(struct rw_semaphore *sem) -{ - if (IS_ERR(____down_write(sem, "call_rwsem_down_write_failed_killable"))) - return -EINTR; - - return 0; -} - -/* - * trylock for writing -- returns 1 if successful, 0 if contention - */ -static inline bool __down_write_trylock(struct rw_semaphore *sem) -{ - bool result; - long tmp0, tmp1; - asm volatile("# beginning __down_write_trylock\n\t" - " mov %[count],%[tmp0]\n\t" - "1:\n\t" - " test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" - /* was the active mask 0 before? */ - " jnz 2f\n\t" - " mov %[tmp0],%[tmp1]\n\t" - " add %[inc],%[tmp1]\n\t" - LOCK_PREFIX " cmpxchg %[tmp1],%[count]\n\t" - " jnz 1b\n\t" - "2:\n\t" - CC_SET(e) - "# ending __down_write_trylock\n\t" - : [count] "+m" (sem->count), [tmp0] "=&a" (tmp0), - [tmp1] "=&r" (tmp1), CC_OUT(e) (result) - : [inc] "er" (RWSEM_ACTIVE_WRITE_BIAS) - : "memory"); - return result; -} - -/* - * unlock after reading - */ -static inline void __up_read(struct rw_semaphore *sem) -{ - long tmp; - asm volatile("# beginning __up_read\n\t" - LOCK_PREFIX " xadd %[tmp],(%[sem])\n\t" - /* subtracts 1, returns the old value */ - " jns 1f\n\t" - " call call_rwsem_wake\n" /* expects old value in %edx */ - "1:\n" - "# ending __up_read\n" - : "+m" (sem->count), [tmp] "=d" (tmp) - : [sem] "a" (sem), "[tmp]" (-RWSEM_ACTIVE_READ_BIAS) - : "memory", "cc"); -} - -/* - * unlock after writing - */ -static inline void __up_write(struct rw_semaphore *sem) -{ - long tmp; - asm volatile("# beginning __up_write\n\t" - LOCK_PREFIX " xadd %[tmp],(%[sem])\n\t" - /* subtracts 0xffff0001, returns the old value */ - " jns 1f\n\t" - " call call_rwsem_wake\n" /* expects old value in %edx */ - "1:\n\t" - "# ending __up_write\n" - : "+m" (sem->count), [tmp] "=d" (tmp) - : [sem] "a" (sem), "[tmp]" (-RWSEM_ACTIVE_WRITE_BIAS) - : "memory", "cc"); -} - -/* - * downgrade write lock to read lock - */ -static inline void __downgrade_write(struct rw_semaphore *sem) -{ - asm volatile("# beginning __downgrade_write\n\t" - LOCK_PREFIX _ASM_ADD "%[inc],(%[sem])\n\t" - /* - * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386) - * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64) - */ - " jns 1f\n\t" - " call call_rwsem_downgrade_wake\n" - "1:\n\t" - "# ending __downgrade_write\n" - : "+m" (sem->count) - : [sem] "a" (sem), [inc] "er" (-RWSEM_WAITING_BIAS) - : "memory", "cc"); -} - -#endif /* __KERNEL__ */ -#endif /* _ASM_X86_RWSEM_H */ diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h index db333300bd4b..f94a7d0ddd49 100644 --- a/arch/x86/include/asm/smap.h +++ b/arch/x86/include/asm/smap.h @@ -13,13 +13,12 @@ #ifndef _ASM_X86_SMAP_H #define _ASM_X86_SMAP_H -#include <linux/stringify.h> #include <asm/nops.h> #include <asm/cpufeatures.h> /* "Raw" instruction opcodes */ -#define __ASM_CLAC .byte 0x0f,0x01,0xca -#define __ASM_STAC .byte 0x0f,0x01,0xcb +#define __ASM_CLAC ".byte 0x0f,0x01,0xca" +#define __ASM_STAC ".byte 0x0f,0x01,0xcb" #ifdef __ASSEMBLY__ @@ -28,10 +27,10 @@ #ifdef CONFIG_X86_SMAP #define ASM_CLAC \ - ALTERNATIVE "", __stringify(__ASM_CLAC), X86_FEATURE_SMAP + ALTERNATIVE "", __ASM_CLAC, X86_FEATURE_SMAP #define ASM_STAC \ - ALTERNATIVE "", __stringify(__ASM_STAC), X86_FEATURE_SMAP + ALTERNATIVE "", __ASM_STAC, X86_FEATURE_SMAP #else /* CONFIG_X86_SMAP */ @@ -49,26 +48,46 @@ static __always_inline void clac(void) { /* Note: a barrier is implicit in alternative() */ - alternative("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP); + alternative("", __ASM_CLAC, X86_FEATURE_SMAP); } static __always_inline void stac(void) { /* Note: a barrier is implicit in alternative() */ - alternative("", __stringify(__ASM_STAC), X86_FEATURE_SMAP); + alternative("", __ASM_STAC, X86_FEATURE_SMAP); +} + +static __always_inline unsigned long smap_save(void) +{ + unsigned long flags; + + asm volatile (ALTERNATIVE("", "pushf; pop %0; " __ASM_CLAC, + X86_FEATURE_SMAP) + : "=rm" (flags) : : "memory", "cc"); + + return flags; +} + +static __always_inline void smap_restore(unsigned long flags) +{ + asm volatile (ALTERNATIVE("", "push %0; popf", X86_FEATURE_SMAP) + : : "g" (flags) : "memory", "cc"); } /* These macros can be used in asm() statements */ #define ASM_CLAC \ - ALTERNATIVE("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP) + ALTERNATIVE("", __ASM_CLAC, X86_FEATURE_SMAP) #define ASM_STAC \ - ALTERNATIVE("", __stringify(__ASM_STAC), X86_FEATURE_SMAP) + ALTERNATIVE("", __ASM_STAC, X86_FEATURE_SMAP) #else /* CONFIG_X86_SMAP */ static inline void clac(void) { } static inline void stac(void) { } +static inline unsigned long smap_save(void) { return 0; } +static inline void smap_restore(unsigned long flags) { } + #define ASM_CLAC #define ASM_STAC diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h index f335aad404a4..beef7ad9e43a 100644 --- a/arch/x86/include/asm/stacktrace.h +++ b/arch/x86/include/asm/stacktrace.h @@ -98,19 +98,6 @@ struct stack_frame_ia32 { u32 return_address; }; -static inline unsigned long caller_frame_pointer(void) -{ - struct stack_frame *frame; - - frame = __builtin_frame_address(0); - -#ifdef CONFIG_FRAME_POINTER - frame = frame->next_frame; -#endif - - return (unsigned long)frame; -} - void show_opcodes(struct pt_regs *regs, const char *loglvl); void show_ip(struct pt_regs *regs, const char *loglvl); #endif /* _ASM_X86_STACKTRACE_H */ diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h index 7cf1a270d891..18a4b6890fa8 100644 --- a/arch/x86/include/asm/switch_to.h +++ b/arch/x86/include/asm/switch_to.h @@ -46,6 +46,7 @@ struct inactive_task_frame { unsigned long r13; unsigned long r12; #else + unsigned long flags; unsigned long si; unsigned long di; #endif diff --git a/arch/x86/include/asm/sync_bitops.h b/arch/x86/include/asm/sync_bitops.h index 2fe745356fb1..6d8d6bc183b7 100644 --- a/arch/x86/include/asm/sync_bitops.h +++ b/arch/x86/include/asm/sync_bitops.h @@ -14,6 +14,8 @@ * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1). */ +#include <asm/rmwcc.h> + #define ADDR (*(volatile long *)addr) /** @@ -29,7 +31,7 @@ */ static inline void sync_set_bit(long nr, volatile unsigned long *addr) { - asm volatile("lock; bts %1,%0" + asm volatile("lock; " __ASM_SIZE(bts) " %1,%0" : "+m" (ADDR) : "Ir" (nr) : "memory"); @@ -47,7 +49,7 @@ static inline void sync_set_bit(long nr, volatile unsigned long *addr) */ static inline void sync_clear_bit(long nr, volatile unsigned long *addr) { - asm volatile("lock; btr %1,%0" + asm volatile("lock; " __ASM_SIZE(btr) " %1,%0" : "+m" (ADDR) : "Ir" (nr) : "memory"); @@ -64,7 +66,7 @@ static inline void sync_clear_bit(long nr, volatile unsigned long *addr) */ static inline void sync_change_bit(long nr, volatile unsigned long *addr) { - asm volatile("lock; btc %1,%0" + asm volatile("lock; " __ASM_SIZE(btc) " %1,%0" : "+m" (ADDR) : "Ir" (nr) : "memory"); @@ -78,14 +80,9 @@ static inline void sync_change_bit(long nr, volatile unsigned long *addr) * This operation is atomic and cannot be reordered. * It also implies a memory barrier. */ -static inline int sync_test_and_set_bit(long nr, volatile unsigned long *addr) +static inline bool sync_test_and_set_bit(long nr, volatile unsigned long *addr) { - unsigned char oldbit; - - asm volatile("lock; bts %2,%1\n\tsetc %0" - : "=qm" (oldbit), "+m" (ADDR) - : "Ir" (nr) : "memory"); - return oldbit; + return GEN_BINARY_RMWcc("lock; " __ASM_SIZE(bts), *addr, c, "Ir", nr); } /** @@ -98,12 +95,7 @@ static inline int sync_test_and_set_bit(long nr, volatile unsigned long *addr) */ static inline int sync_test_and_clear_bit(long nr, volatile unsigned long *addr) { - unsigned char oldbit; - - asm volatile("lock; btr %2,%1\n\tsetc %0" - : "=qm" (oldbit), "+m" (ADDR) - : "Ir" (nr) : "memory"); - return oldbit; + return GEN_BINARY_RMWcc("lock; " __ASM_SIZE(btr), *addr, c, "Ir", nr); } /** @@ -116,12 +108,7 @@ static inline int sync_test_and_clear_bit(long nr, volatile unsigned long *addr) */ static inline int sync_test_and_change_bit(long nr, volatile unsigned long *addr) { - unsigned char oldbit; - - asm volatile("lock; btc %2,%1\n\tsetc %0" - : "=qm" (oldbit), "+m" (ADDR) - : "Ir" (nr) : "memory"); - return oldbit; + return GEN_BINARY_RMWcc("lock; " __ASM_SIZE(btc), *addr, c, "Ir", nr); } #define sync_test_bit(nr, addr) test_bit(nr, addr) diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h index d653139857af..4c305471ec33 100644 --- a/arch/x86/include/asm/syscall.h +++ b/arch/x86/include/asm/syscall.h @@ -91,11 +91,9 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - BUG_ON(i + n > 6); - memcpy(args, ®s->bx + i, n * sizeof(args[0])); + memcpy(args, ®s->bx, 6 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, @@ -116,124 +114,50 @@ static inline int syscall_get_arch(void) static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { # ifdef CONFIG_IA32_EMULATION - if (task->thread_info.status & TS_COMPAT) - switch (i) { - case 0: - if (!n--) break; - *args++ = regs->bx; - case 1: - if (!n--) break; - *args++ = regs->cx; - case 2: - if (!n--) break; - *args++ = regs->dx; - case 3: - if (!n--) break; - *args++ = regs->si; - case 4: - if (!n--) break; - *args++ = regs->di; - case 5: - if (!n--) break; - *args++ = regs->bp; - case 6: - if (!n--) break; - default: - BUG(); - break; - } - else + if (task->thread_info.status & TS_COMPAT) { + *args++ = regs->bx; + *args++ = regs->cx; + *args++ = regs->dx; + *args++ = regs->si; + *args++ = regs->di; + *args = regs->bp; + } else # endif - switch (i) { - case 0: - if (!n--) break; - *args++ = regs->di; - case 1: - if (!n--) break; - *args++ = regs->si; - case 2: - if (!n--) break; - *args++ = regs->dx; - case 3: - if (!n--) break; - *args++ = regs->r10; - case 4: - if (!n--) break; - *args++ = regs->r8; - case 5: - if (!n--) break; - *args++ = regs->r9; - case 6: - if (!n--) break; - default: - BUG(); - break; - } + { + *args++ = regs->di; + *args++ = regs->si; + *args++ = regs->dx; + *args++ = regs->r10; + *args++ = regs->r8; + *args = regs->r9; + } } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { # ifdef CONFIG_IA32_EMULATION - if (task->thread_info.status & TS_COMPAT) - switch (i) { - case 0: - if (!n--) break; - regs->bx = *args++; - case 1: - if (!n--) break; - regs->cx = *args++; - case 2: - if (!n--) break; - regs->dx = *args++; - case 3: - if (!n--) break; - regs->si = *args++; - case 4: - if (!n--) break; - regs->di = *args++; - case 5: - if (!n--) break; - regs->bp = *args++; - case 6: - if (!n--) break; - default: - BUG(); - break; - } - else + if (task->thread_info.status & TS_COMPAT) { + regs->bx = *args++; + regs->cx = *args++; + regs->dx = *args++; + regs->si = *args++; + regs->di = *args++; + regs->bp = *args; + } else # endif - switch (i) { - case 0: - if (!n--) break; - regs->di = *args++; - case 1: - if (!n--) break; - regs->si = *args++; - case 2: - if (!n--) break; - regs->dx = *args++; - case 3: - if (!n--) break; - regs->r10 = *args++; - case 4: - if (!n--) break; - regs->r8 = *args++; - case 5: - if (!n--) break; - regs->r9 = *args++; - case 6: - if (!n--) break; - default: - BUG(); - break; - } + { + regs->di = *args++; + regs->si = *args++; + regs->dx = *args++; + regs->r10 = *args++; + regs->r8 = *args++; + regs->r9 = *args; + } } static inline int syscall_get_arch(void) diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h index 404b8b1d44f5..f23e7aaff4cd 100644 --- a/arch/x86/include/asm/tlb.h +++ b/arch/x86/include/asm/tlb.h @@ -6,6 +6,7 @@ #define tlb_end_vma(tlb, vma) do { } while (0) #define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0) +#define tlb_flush tlb_flush static inline void tlb_flush(struct mmu_gather *tlb); #include <asm-generic/tlb.h> diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index f4204bf377fc..90926e8dd1f8 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -167,7 +167,7 @@ struct tlb_state { */ struct mm_struct *loaded_mm; -#define LOADED_MM_SWITCHING ((struct mm_struct *)1) +#define LOADED_MM_SWITCHING ((struct mm_struct *)1UL) /* Last user mm for optimizing IBPB */ union { diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 1954dd5552a2..c82abd6e4ca3 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -427,10 +427,11 @@ do { \ ({ \ __label__ __pu_label; \ int __pu_err = -EFAULT; \ - __typeof__(*(ptr)) __pu_val; \ - __pu_val = x; \ + __typeof__(*(ptr)) __pu_val = (x); \ + __typeof__(ptr) __pu_ptr = (ptr); \ + __typeof__(size) __pu_size = (size); \ __uaccess_begin(); \ - __put_user_size(__pu_val, (ptr), (size), __pu_label); \ + __put_user_size(__pu_val, __pu_ptr, __pu_size, __pu_label); \ __pu_err = 0; \ __pu_label: \ __uaccess_end(); \ @@ -585,7 +586,6 @@ extern void __cmpxchg_wrong_size(void) #define __user_atomic_cmpxchg_inatomic(uval, ptr, old, new, size) \ ({ \ int __ret = 0; \ - __typeof__(ptr) __uval = (uval); \ __typeof__(*(ptr)) __old = (old); \ __typeof__(*(ptr)) __new = (new); \ __uaccess_begin_nospec(); \ @@ -661,7 +661,7 @@ extern void __cmpxchg_wrong_size(void) __cmpxchg_wrong_size(); \ } \ __uaccess_end(); \ - *__uval = __old; \ + *(uval) = __old; \ __ret; \ }) @@ -705,7 +705,7 @@ extern struct movsl_mask { * checking before using them, but you have to surround them with the * user_access_begin/end() pair. */ -static __must_check inline bool user_access_begin(const void __user *ptr, size_t len) +static __must_check __always_inline bool user_access_begin(const void __user *ptr, size_t len) { if (unlikely(!access_ok(ptr,len))) return 0; @@ -715,6 +715,9 @@ static __must_check inline bool user_access_begin(const void __user *ptr, size_t #define user_access_begin(a,b) user_access_begin(a,b) #define user_access_end() __uaccess_end() +#define user_access_save() smap_save() +#define user_access_restore(x) smap_restore(x) + #define unsafe_put_user(x, ptr, label) \ __put_user_size((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)), label) diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index a9d637bc301d..5cd1caa8bc65 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -208,9 +208,6 @@ __copy_from_user_flushcache(void *dst, const void __user *src, unsigned size) } unsigned long -copy_user_handle_tail(char *to, char *from, unsigned len); - -unsigned long mcsafe_handle_tail(char *to, char *from, unsigned len); #endif /* _ASM_X86_UACCESS_64_H */ diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h index de6f0d59a24f..d50c7b747d8b 100644 --- a/arch/x86/include/asm/xen/hypercall.h +++ b/arch/x86/include/asm/xen/hypercall.h @@ -206,6 +206,9 @@ xen_single_call(unsigned int call, __HYPERCALL_DECLS; __HYPERCALL_5ARG(a1, a2, a3, a4, a5); + if (call >= PAGE_SIZE / sizeof(hypercall_page[0])) + return -EINVAL; + asm volatile(CALL_NOSPEC : __HYPERCALL_5PARAM : [thunk_target] "a" (&hypercall_page[call]) @@ -214,6 +217,22 @@ xen_single_call(unsigned int call, return (long)__res; } +static __always_inline void __xen_stac(void) +{ + /* + * Suppress objtool seeing the STAC/CLAC and getting confused about it + * calling random code with AC=1. + */ + asm volatile(ANNOTATE_IGNORE_ALTERNATIVE + ASM_STAC ::: "memory", "flags"); +} + +static __always_inline void __xen_clac(void) +{ + asm volatile(ANNOTATE_IGNORE_ALTERNATIVE + ASM_CLAC ::: "memory", "flags"); +} + static inline long privcmd_call(unsigned int call, unsigned long a1, unsigned long a2, @@ -222,9 +241,9 @@ privcmd_call(unsigned int call, { long res; - stac(); + __xen_stac(); res = xen_single_call(call, a1, a2, a3, a4, a5); - clac(); + __xen_clac(); return res; } @@ -421,9 +440,9 @@ HYPERVISOR_dm_op( domid_t dom, unsigned int nr_bufs, struct xen_dm_op_buf *bufs) { int ret; - stac(); + __xen_stac(); ret = _hypercall3(int, dm_op, dom, nr_bufs, bufs); - clac(); + __xen_clac(); return ret; } diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h index dabfcf7c3941..7a0e64ccd6ff 100644 --- a/arch/x86/include/uapi/asm/kvm.h +++ b/arch/x86/include/uapi/asm/kvm.h @@ -381,6 +381,7 @@ struct kvm_sync_regs { #define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0) #define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1) #define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2) +#define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3) #define KVM_STATE_NESTED_GUEST_MODE 0x00000001 #define KVM_STATE_NESTED_RUN_PENDING 0x00000002 diff --git a/arch/x86/include/uapi/asm/perf_regs.h b/arch/x86/include/uapi/asm/perf_regs.h index f3329cabce5c..ac67bbea10ca 100644 --- a/arch/x86/include/uapi/asm/perf_regs.h +++ b/arch/x86/include/uapi/asm/perf_regs.h @@ -27,8 +27,29 @@ enum perf_event_x86_regs { PERF_REG_X86_R13, PERF_REG_X86_R14, PERF_REG_X86_R15, - + /* These are the limits for the GPRs. */ PERF_REG_X86_32_MAX = PERF_REG_X86_GS + 1, PERF_REG_X86_64_MAX = PERF_REG_X86_R15 + 1, + + /* These all need two bits set because they are 128bit */ + PERF_REG_X86_XMM0 = 32, + PERF_REG_X86_XMM1 = 34, + PERF_REG_X86_XMM2 = 36, + PERF_REG_X86_XMM3 = 38, + PERF_REG_X86_XMM4 = 40, + PERF_REG_X86_XMM5 = 42, + PERF_REG_X86_XMM6 = 44, + PERF_REG_X86_XMM7 = 46, + PERF_REG_X86_XMM8 = 48, + PERF_REG_X86_XMM9 = 50, + PERF_REG_X86_XMM10 = 52, + PERF_REG_X86_XMM11 = 54, + PERF_REG_X86_XMM12 = 56, + PERF_REG_X86_XMM13 = 58, + PERF_REG_X86_XMM14 = 60, + PERF_REG_X86_XMM15 = 62, + + /* These include both GPRs and XMMX registers */ + PERF_REG_X86_XMM_MAX = PERF_REG_X86_XMM15 + 2, }; #endif /* _ASM_X86_PERF_REGS_H */ diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h index f0b0c90dd398..d213ec5c3766 100644 --- a/arch/x86/include/uapi/asm/vmx.h +++ b/arch/x86/include/uapi/asm/vmx.h @@ -146,6 +146,7 @@ #define VMX_ABORT_SAVE_GUEST_MSR_FAIL 1 #define VMX_ABORT_LOAD_HOST_PDPTE_FAIL 2 +#define VMX_ABORT_VMCS_CORRUPTED 3 #define VMX_ABORT_LOAD_HOST_MSR_FAIL 4 #endif /* _UAPIVMX_H */ diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c index 58176b56354e..294ed4392a0e 100644 --- a/arch/x86/kernel/aperture_64.c +++ b/arch/x86/kernel/aperture_64.c @@ -14,6 +14,7 @@ #define pr_fmt(fmt) "AGP: " fmt #include <linux/kernel.h> +#include <linux/kcore.h> #include <linux/types.h> #include <linux/init.h> #include <linux/memblock.h> @@ -57,7 +58,7 @@ int fallback_aper_force __initdata; int fix_aperture __initdata = 1; -#ifdef CONFIG_PROC_VMCORE +#if defined(CONFIG_PROC_VMCORE) || defined(CONFIG_PROC_KCORE) /* * If the first kernel maps the aperture over e820 RAM, the kdump kernel will * use the same range because it will remain configured in the northbridge. @@ -66,20 +67,25 @@ int fix_aperture __initdata = 1; */ static unsigned long aperture_pfn_start, aperture_page_count; -static int gart_oldmem_pfn_is_ram(unsigned long pfn) +static int gart_mem_pfn_is_ram(unsigned long pfn) { return likely((pfn < aperture_pfn_start) || (pfn >= aperture_pfn_start + aperture_page_count)); } -static void exclude_from_vmcore(u64 aper_base, u32 aper_order) +static void __init exclude_from_core(u64 aper_base, u32 aper_order) { aperture_pfn_start = aper_base >> PAGE_SHIFT; aperture_page_count = (32 * 1024 * 1024) << aper_order >> PAGE_SHIFT; - WARN_ON(register_oldmem_pfn_is_ram(&gart_oldmem_pfn_is_ram)); +#ifdef CONFIG_PROC_VMCORE + WARN_ON(register_oldmem_pfn_is_ram(&gart_mem_pfn_is_ram)); +#endif +#ifdef CONFIG_PROC_KCORE + WARN_ON(register_mem_pfn_is_ram(&gart_mem_pfn_is_ram)); +#endif } #else -static void exclude_from_vmcore(u64 aper_base, u32 aper_order) +static void exclude_from_core(u64 aper_base, u32 aper_order) { } #endif @@ -474,7 +480,7 @@ out: * may have allocated the range over its e820 RAM * and fixed up the northbridge */ - exclude_from_vmcore(last_aper_base, last_aper_order); + exclude_from_core(last_aper_base, last_aper_order); return 1; } @@ -520,7 +526,7 @@ out: * overlap with the first kernel's memory. We can't access the * range through vmcore even though it should be part of the dump. */ - exclude_from_vmcore(aper_alloc, aper_order); + exclude_from_core(aper_alloc, aper_order); /* Fix up the north bridges */ for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; i++) { diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index b7bcdd781651..ab6af775f06c 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -802,6 +802,24 @@ calibrate_by_pmtimer(long deltapm, long *delta, long *deltatsc) return 0; } +static int __init lapic_init_clockevent(void) +{ + if (!lapic_timer_frequency) + return -1; + + /* Calculate the scaled math multiplication factor */ + lapic_clockevent.mult = div_sc(lapic_timer_frequency/APIC_DIVISOR, + TICK_NSEC, lapic_clockevent.shift); + lapic_clockevent.max_delta_ns = + clockevent_delta2ns(0x7FFFFFFF, &lapic_clockevent); + lapic_clockevent.max_delta_ticks = 0x7FFFFFFF; + lapic_clockevent.min_delta_ns = + clockevent_delta2ns(0xF, &lapic_clockevent); + lapic_clockevent.min_delta_ticks = 0xF; + + return 0; +} + static int __init calibrate_APIC_clock(void) { struct clock_event_device *levt = this_cpu_ptr(&lapic_events); @@ -810,25 +828,21 @@ static int __init calibrate_APIC_clock(void) long delta, deltatsc; int pm_referenced = 0; - /** - * check if lapic timer has already been calibrated by platform - * specific routine, such as tsc calibration code. if so, we just fill + if (boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER)) + return 0; + + /* + * Check if lapic timer has already been calibrated by platform + * specific routine, such as tsc calibration code. If so just fill * in the clockevent structure and return. */ - - if (boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER)) { - return 0; - } else if (lapic_timer_frequency) { + if (!lapic_init_clockevent()) { apic_printk(APIC_VERBOSE, "lapic timer already calibrated %d\n", - lapic_timer_frequency); - lapic_clockevent.mult = div_sc(lapic_timer_frequency/APIC_DIVISOR, - TICK_NSEC, lapic_clockevent.shift); - lapic_clockevent.max_delta_ns = - clockevent_delta2ns(0x7FFFFF, &lapic_clockevent); - lapic_clockevent.max_delta_ticks = 0x7FFFFF; - lapic_clockevent.min_delta_ns = - clockevent_delta2ns(0xF, &lapic_clockevent); - lapic_clockevent.min_delta_ticks = 0xF; + lapic_timer_frequency); + /* + * Direct calibration methods must have an always running + * local APIC timer, no need for broadcast timer. + */ lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY; return 0; } @@ -869,17 +883,8 @@ static int __init calibrate_APIC_clock(void) pm_referenced = !calibrate_by_pmtimer(lapic_cal_pm2 - lapic_cal_pm1, &delta, &deltatsc); - /* Calculate the scaled math multiplication factor */ - lapic_clockevent.mult = div_sc(delta, TICK_NSEC * LAPIC_CAL_LOOPS, - lapic_clockevent.shift); - lapic_clockevent.max_delta_ns = - clockevent_delta2ns(0x7FFFFFFF, &lapic_clockevent); - lapic_clockevent.max_delta_ticks = 0x7FFFFFFF; - lapic_clockevent.min_delta_ns = - clockevent_delta2ns(0xF, &lapic_clockevent); - lapic_clockevent.min_delta_ticks = 0xF; - lapic_timer_frequency = (delta * APIC_DIVISOR) / LAPIC_CAL_LOOPS; + lapic_init_clockevent(); apic_printk(APIC_VERBOSE, "..... delta %ld\n", delta); apic_printk(APIC_VERBOSE, "..... mult: %u\n", lapic_clockevent.mult); diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c index 78778b54f904..a5464b8b6c46 100644 --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -175,7 +175,7 @@ static void fixup_cpu_id(struct cpuinfo_x86 *c, int node) this_cpu_write(cpu_llc_id, node); /* Account for nodes per socket in multi-core-module processors */ - if (static_cpu_has(X86_FEATURE_NODEID_MSR)) { + if (boot_cpu_has(X86_FEATURE_NODEID_MSR)) { rdmsrl(MSR_FAM10H_NODE_ID, val); nodes = ((val >> 3) & 7) + 1; } diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 01004bfb1a1b..fb6a64bd765f 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -82,11 +82,14 @@ static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val) * performance at the same time.. */ +#ifdef CONFIG_X86_32 extern __visible void vide(void); -__asm__(".globl vide\n" +__asm__(".text\n" + ".globl vide\n" ".type vide, @function\n" ".align 4\n" "vide: ret\n"); +#endif static void init_amd_k5(struct cpuinfo_x86 *c) { diff --git a/arch/x86/kernel/cpu/aperfmperf.c b/arch/x86/kernel/cpu/aperfmperf.c index 804c49493938..64d5aec24203 100644 --- a/arch/x86/kernel/cpu/aperfmperf.c +++ b/arch/x86/kernel/cpu/aperfmperf.c @@ -83,7 +83,7 @@ unsigned int aperfmperf_get_khz(int cpu) if (!cpu_khz) return 0; - if (!static_cpu_has(X86_FEATURE_APERFMPERF)) + if (!boot_cpu_has(X86_FEATURE_APERFMPERF)) return 0; aperfmperf_snapshot_cpu(cpu, ktime_get(), true); @@ -99,7 +99,7 @@ void arch_freq_prepare_all(void) if (!cpu_khz) return; - if (!static_cpu_has(X86_FEATURE_APERFMPERF)) + if (!boot_cpu_has(X86_FEATURE_APERFMPERF)) return; for_each_online_cpu(cpu) @@ -115,7 +115,7 @@ unsigned int arch_freq_get_on_cpu(int cpu) if (!cpu_khz) return 0; - if (!static_cpu_has(X86_FEATURE_APERFMPERF)) + if (!boot_cpu_has(X86_FEATURE_APERFMPERF)) return 0; if (aperfmperf_snapshot_cpu(cpu, ktime_get(), true)) diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 2da82eff0eb4..29630393f300 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -275,7 +275,7 @@ static const struct { const char *option; enum spectre_v2_user_cmd cmd; bool secure; -} v2_user_options[] __initdata = { +} v2_user_options[] __initconst = { { "auto", SPECTRE_V2_USER_CMD_AUTO, false }, { "off", SPECTRE_V2_USER_CMD_NONE, false }, { "on", SPECTRE_V2_USER_CMD_FORCE, true }, @@ -419,7 +419,7 @@ static const struct { const char *option; enum spectre_v2_mitigation_cmd cmd; bool secure; -} mitigation_options[] __initdata = { +} mitigation_options[] __initconst = { { "off", SPECTRE_V2_CMD_NONE, false }, { "on", SPECTRE_V2_CMD_FORCE, true }, { "retpoline", SPECTRE_V2_CMD_RETPOLINE, false }, @@ -440,7 +440,8 @@ static enum spectre_v2_mitigation_cmd __init spectre_v2_parse_cmdline(void) char arg[20]; int ret, i; - if (cmdline_find_option_bool(boot_command_line, "nospectre_v2")) + if (cmdline_find_option_bool(boot_command_line, "nospectre_v2") || + cpu_mitigations_off()) return SPECTRE_V2_CMD_NONE; ret = cmdline_find_option(boot_command_line, "spectre_v2", arg, sizeof(arg)); @@ -658,7 +659,7 @@ static const char * const ssb_strings[] = { static const struct { const char *option; enum ssb_mitigation_cmd cmd; -} ssb_mitigation_options[] __initdata = { +} ssb_mitigation_options[] __initconst = { { "auto", SPEC_STORE_BYPASS_CMD_AUTO }, /* Platform decides */ { "on", SPEC_STORE_BYPASS_CMD_ON }, /* Disable Speculative Store Bypass */ { "off", SPEC_STORE_BYPASS_CMD_NONE }, /* Don't touch Speculative Store Bypass */ @@ -672,7 +673,8 @@ static enum ssb_mitigation_cmd __init ssb_parse_cmdline(void) char arg[20]; int ret, i; - if (cmdline_find_option_bool(boot_command_line, "nospec_store_bypass_disable")) { + if (cmdline_find_option_bool(boot_command_line, "nospec_store_bypass_disable") || + cpu_mitigations_off()) { return SPEC_STORE_BYPASS_CMD_NONE; } else { ret = cmdline_find_option(boot_command_line, "spec_store_bypass_disable", @@ -1008,6 +1010,11 @@ static void __init l1tf_select_mitigation(void) if (!boot_cpu_has_bug(X86_BUG_L1TF)) return; + if (cpu_mitigations_off()) + l1tf_mitigation = L1TF_MITIGATION_OFF; + else if (cpu_mitigations_auto_nosmt()) + l1tf_mitigation = L1TF_MITIGATION_FLUSH_NOSMT; + override_cache_bits(&boot_cpu_data); switch (l1tf_mitigation) { diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index cb28e98a0659..95a5faf3a6a0 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1668,7 +1668,7 @@ static void setup_getcpu(int cpu) unsigned long cpudata = vdso_encode_cpunode(cpu, early_cpu_to_node(cpu)); struct desc_struct d = { }; - if (static_cpu_has(X86_FEATURE_RDTSCP)) + if (boot_cpu_has(X86_FEATURE_RDTSCP)) write_rdtscp_aux(cpudata); /* Store CPU and node number in limit. */ diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c index d12226f60168..1d9b8aaea06c 100644 --- a/arch/x86/kernel/cpu/cyrix.c +++ b/arch/x86/kernel/cpu/cyrix.c @@ -124,7 +124,7 @@ static void set_cx86_reorder(void) setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* Load/Store Serialize to mem access disable (=reorder it) */ - setCx86_old(CX86_PCR0, getCx86_old(CX86_PCR0) & ~0x80); + setCx86(CX86_PCR0, getCx86(CX86_PCR0) & ~0x80); /* set load/store serialize from 1GB to 4GB */ ccr3 |= 0xe0; setCx86(CX86_CCR3, ccr3); @@ -135,11 +135,11 @@ static void set_cx86_memwb(void) pr_info("Enable Memory-Write-back mode on Cyrix/NSC processor.\n"); /* CCR2 bit 2: unlock NW bit */ - setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) & ~0x04); + setCx86(CX86_CCR2, getCx86(CX86_CCR2) & ~0x04); /* set 'Not Write-through' */ write_cr0(read_cr0() | X86_CR0_NW); /* CCR2 bit 2: lock NW bit and set WT1 */ - setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) | 0x14); + setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14); } /* @@ -153,14 +153,14 @@ static void geode_configure(void) local_irq_save(flags); /* Suspend on halt power saving and enable #SUSP pin */ - setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) | 0x88); + setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); ccr3 = getCx86(CX86_CCR3); setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* FPU fast, DTE cache, Mem bypass */ - setCx86_old(CX86_CCR4, getCx86_old(CX86_CCR4) | 0x38); + setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x38); setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ set_cx86_memwb(); @@ -296,7 +296,7 @@ static void init_cyrix(struct cpuinfo_x86 *c) /* GXm supports extended cpuid levels 'ala' AMD */ if (c->cpuid_level == 2) { /* Enable cxMMX extensions (GX1 Datasheet 54) */ - setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7) | 1); + setCx86(CX86_CCR7, getCx86(CX86_CCR7) | 1); /* * GXm : 0x30 ... 0x5f GXm datasheet 51 @@ -319,7 +319,7 @@ static void init_cyrix(struct cpuinfo_x86 *c) if (dir1 > 7) { dir0_msn++; /* M II */ /* Enable MMX extensions (App note 108) */ - setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7)|1); + setCx86(CX86_CCR7, getCx86(CX86_CCR7)|1); } else { /* A 6x86MX - it has the bug. */ set_cpu_bug(c, X86_BUG_COMA); diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index fc3c07fe7df5..3142fd7a9b32 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -611,8 +611,8 @@ static void init_intel_energy_perf(struct cpuinfo_x86 *c) if ((epb & 0xF) != ENERGY_PERF_BIAS_PERFORMANCE) return; - pr_warn_once("ENERGY_PERF_BIAS: Set to 'normal', was 'performance'\n"); - pr_warn_once("ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)\n"); + pr_info_once("ENERGY_PERF_BIAS: Set to 'normal', was 'performance'\n"); + pr_info_once("ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)\n"); epb = (epb & ~0xF) | ENERGY_PERF_BIAS_NORMAL; wrmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb); } diff --git a/arch/x86/kernel/cpu/mce/inject.c b/arch/x86/kernel/cpu/mce/inject.c index 8492ef7d9015..3da9a8823e47 100644 --- a/arch/x86/kernel/cpu/mce/inject.c +++ b/arch/x86/kernel/cpu/mce/inject.c @@ -528,7 +528,7 @@ static void do_inject(void) * only on the node base core. Refer to D18F3x44[NbMcaToMstCpuEn] for * Fam10h and later BKDGs. */ - if (static_cpu_has(X86_FEATURE_AMD_DCM) && + if (boot_cpu_has(X86_FEATURE_AMD_DCM) && b == 4 && boot_cpu_data.x86 < 0x17) { toggle_nb_mca_mst_cpu(amd_get_nb_id(cpu)); diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index 97f9ada9ceda..5260185cbf7b 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -608,6 +608,8 @@ static int microcode_reload_late(void) if (ret > 0) microcode_check(); + pr_info("Reload completed, microcode revision: 0x%x\n", boot_cpu_data.microcode); + return ret; } diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c index 2c8522a39ed5..cb2e49810d68 100644 --- a/arch/x86/kernel/cpu/proc.c +++ b/arch/x86/kernel/cpu/proc.c @@ -35,11 +35,11 @@ static void show_cpuinfo_misc(struct seq_file *m, struct cpuinfo_x86 *c) "fpu_exception\t: %s\n" "cpuid level\t: %d\n" "wp\t\t: yes\n", - static_cpu_has_bug(X86_BUG_FDIV) ? "yes" : "no", - static_cpu_has_bug(X86_BUG_F00F) ? "yes" : "no", - static_cpu_has_bug(X86_BUG_COMA) ? "yes" : "no", - static_cpu_has(X86_FEATURE_FPU) ? "yes" : "no", - static_cpu_has(X86_FEATURE_FPU) ? "yes" : "no", + boot_cpu_has_bug(X86_BUG_FDIV) ? "yes" : "no", + boot_cpu_has_bug(X86_BUG_F00F) ? "yes" : "no", + boot_cpu_has_bug(X86_BUG_COMA) ? "yes" : "no", + boot_cpu_has(X86_FEATURE_FPU) ? "yes" : "no", + boot_cpu_has(X86_FEATURE_FPU) ? "yes" : "no", c->cpuid_level); } #else diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c index 2dbd990a2eb7..89320c0396b1 100644 --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c @@ -342,10 +342,10 @@ int update_domains(struct rdt_resource *r, int closid) if (cpumask_empty(cpu_mask) || mba_sc) goto done; cpu = get_cpu(); - /* Update CBM on this cpu if it's in cpu_mask. */ + /* Update resource control msr on this CPU if it's in cpu_mask. */ if (cpumask_test_cpu(cpu, cpu_mask)) rdt_ctrl_update(&msr_param); - /* Update CBM on other cpus. */ + /* Update resource control msr on other CPUs. */ smp_call_function_many(cpu_mask, rdt_ctrl_update, &msr_param, 1); put_cpu(); diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index f33f11f69078..1573a0a6b525 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -501,11 +501,8 @@ out_unlock: void cqm_setup_limbo_handler(struct rdt_domain *dom, unsigned long delay_ms) { unsigned long delay = msecs_to_jiffies(delay_ms); - struct rdt_resource *r; int cpu; - r = &rdt_resources_all[RDT_RESOURCE_L3]; - cpu = cpumask_any(&dom->cpu_mask); dom->cqm_work_cpu = cpu; diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index 399601eda8e4..333c177a2471 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -2039,14 +2039,14 @@ out: enum rdt_param { Opt_cdp, Opt_cdpl2, - Opt_mba_mpbs, + Opt_mba_mbps, nr__rdt_params }; static const struct fs_parameter_spec rdt_param_specs[] = { fsparam_flag("cdp", Opt_cdp), fsparam_flag("cdpl2", Opt_cdpl2), - fsparam_flag("mba_mpbs", Opt_mba_mpbs), + fsparam_flag("mba_MBps", Opt_mba_mbps), {} }; @@ -2072,7 +2072,7 @@ static int rdt_parse_param(struct fs_context *fc, struct fs_parameter *param) case Opt_cdpl2: ctx->enable_cdpl2 = true; return 0; - case Opt_mba_mpbs: + case Opt_mba_mbps: if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) return -EINVAL; ctx->enable_mba_mbps = true; @@ -2516,103 +2516,131 @@ static void cbm_ensure_valid(u32 *_val, struct rdt_resource *r) bitmap_clear(val, zero_bit, cbm_len - zero_bit); } -/** - * rdtgroup_init_alloc - Initialize the new RDT group's allocations - * - * A new RDT group is being created on an allocation capable (CAT) - * supporting system. Set this group up to start off with all usable - * allocations. That is, all shareable and unused bits. +/* + * Initialize cache resources per RDT domain * - * All-zero CBM is invalid. If there are no more shareable bits available - * on any domain then the entire allocation will fail. + * Set the RDT domain up to start off with all usable allocations. That is, + * all shareable and unused bits. All-zero CBM is invalid. */ -static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) +static int __init_one_rdt_domain(struct rdt_domain *d, struct rdt_resource *r, + u32 closid) { struct rdt_resource *r_cdp = NULL; struct rdt_domain *d_cdp = NULL; u32 used_b = 0, unused_b = 0; - u32 closid = rdtgrp->closid; - struct rdt_resource *r; unsigned long tmp_cbm; enum rdtgrp_mode mode; - struct rdt_domain *d; u32 peer_ctl, *ctrl; - int i, ret; + int i; - for_each_alloc_enabled_rdt_resource(r) { - /* - * Only initialize default allocations for CBM cache - * resources - */ - if (r->rid == RDT_RESOURCE_MBA) - continue; - list_for_each_entry(d, &r->domains, list) { - rdt_cdp_peer_get(r, d, &r_cdp, &d_cdp); - d->have_new_ctrl = false; - d->new_ctrl = r->cache.shareable_bits; - used_b = r->cache.shareable_bits; - ctrl = d->ctrl_val; - for (i = 0; i < closids_supported(); i++, ctrl++) { - if (closid_allocated(i) && i != closid) { - mode = rdtgroup_mode_by_closid(i); - if (mode == RDT_MODE_PSEUDO_LOCKSETUP) - break; - /* - * If CDP is active include peer - * domain's usage to ensure there - * is no overlap with an exclusive - * group. - */ - if (d_cdp) - peer_ctl = d_cdp->ctrl_val[i]; - else - peer_ctl = 0; - used_b |= *ctrl | peer_ctl; - if (mode == RDT_MODE_SHAREABLE) - d->new_ctrl |= *ctrl | peer_ctl; - } - } - if (d->plr && d->plr->cbm > 0) - used_b |= d->plr->cbm; - unused_b = used_b ^ (BIT_MASK(r->cache.cbm_len) - 1); - unused_b &= BIT_MASK(r->cache.cbm_len) - 1; - d->new_ctrl |= unused_b; - /* - * Force the initial CBM to be valid, user can - * modify the CBM based on system availability. - */ - cbm_ensure_valid(&d->new_ctrl, r); + rdt_cdp_peer_get(r, d, &r_cdp, &d_cdp); + d->have_new_ctrl = false; + d->new_ctrl = r->cache.shareable_bits; + used_b = r->cache.shareable_bits; + ctrl = d->ctrl_val; + for (i = 0; i < closids_supported(); i++, ctrl++) { + if (closid_allocated(i) && i != closid) { + mode = rdtgroup_mode_by_closid(i); + if (mode == RDT_MODE_PSEUDO_LOCKSETUP) + break; /* - * Assign the u32 CBM to an unsigned long to ensure - * that bitmap_weight() does not access out-of-bound - * memory. + * If CDP is active include peer domain's + * usage to ensure there is no overlap + * with an exclusive group. */ - tmp_cbm = d->new_ctrl; - if (bitmap_weight(&tmp_cbm, r->cache.cbm_len) < - r->cache.min_cbm_bits) { - rdt_last_cmd_printf("No space on %s:%d\n", - r->name, d->id); - return -ENOSPC; - } - d->have_new_ctrl = true; + if (d_cdp) + peer_ctl = d_cdp->ctrl_val[i]; + else + peer_ctl = 0; + used_b |= *ctrl | peer_ctl; + if (mode == RDT_MODE_SHAREABLE) + d->new_ctrl |= *ctrl | peer_ctl; } } + if (d->plr && d->plr->cbm > 0) + used_b |= d->plr->cbm; + unused_b = used_b ^ (BIT_MASK(r->cache.cbm_len) - 1); + unused_b &= BIT_MASK(r->cache.cbm_len) - 1; + d->new_ctrl |= unused_b; + /* + * Force the initial CBM to be valid, user can + * modify the CBM based on system availability. + */ + cbm_ensure_valid(&d->new_ctrl, r); + /* + * Assign the u32 CBM to an unsigned long to ensure that + * bitmap_weight() does not access out-of-bound memory. + */ + tmp_cbm = d->new_ctrl; + if (bitmap_weight(&tmp_cbm, r->cache.cbm_len) < r->cache.min_cbm_bits) { + rdt_last_cmd_printf("No space on %s:%d\n", r->name, d->id); + return -ENOSPC; + } + d->have_new_ctrl = true; + + return 0; +} + +/* + * Initialize cache resources with default values. + * + * A new RDT group is being created on an allocation capable (CAT) + * supporting system. Set this group up to start off with all usable + * allocations. + * + * If there are no more shareable bits available on any domain then + * the entire allocation will fail. + */ +static int rdtgroup_init_cat(struct rdt_resource *r, u32 closid) +{ + struct rdt_domain *d; + int ret; + + list_for_each_entry(d, &r->domains, list) { + ret = __init_one_rdt_domain(d, r, closid); + if (ret < 0) + return ret; + } + + return 0; +} + +/* Initialize MBA resource with default values. */ +static void rdtgroup_init_mba(struct rdt_resource *r) +{ + struct rdt_domain *d; + + list_for_each_entry(d, &r->domains, list) { + d->new_ctrl = is_mba_sc(r) ? MBA_MAX_MBPS : r->default_ctrl; + d->have_new_ctrl = true; + } +} + +/* Initialize the RDT group's allocations. */ +static int rdtgroup_init_alloc(struct rdtgroup *rdtgrp) +{ + struct rdt_resource *r; + int ret; for_each_alloc_enabled_rdt_resource(r) { - /* - * Only initialize default allocations for CBM cache - * resources - */ - if (r->rid == RDT_RESOURCE_MBA) - continue; + if (r->rid == RDT_RESOURCE_MBA) { + rdtgroup_init_mba(r); + } else { + ret = rdtgroup_init_cat(r, rdtgrp->closid); + if (ret < 0) + return ret; + } + ret = update_domains(r, rdtgrp->closid); if (ret < 0) { rdt_last_cmd_puts("Failed to initialize allocations\n"); return ret; } - rdtgrp->mode = RDT_MODE_SHAREABLE; + } + rdtgrp->mode = RDT_MODE_SHAREABLE; + return 0; } diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c index 17ffc869cab8..a96ca8584803 100644 --- a/arch/x86/kernel/crash.c +++ b/arch/x86/kernel/crash.c @@ -204,8 +204,7 @@ static struct crash_mem *fill_up_crash_elf_data(void) * another range split. So add extra two slots here. */ nr_ranges += 2; - cmem = vzalloc(sizeof(struct crash_mem) + - sizeof(struct crash_mem_range) * nr_ranges); + cmem = vzalloc(struct_size(cmem, ranges, nr_ranges)); if (!cmem) return NULL; diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index dfd3aca82c61..fb32925a2e62 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -905,6 +905,8 @@ int __init hpet_enable(void) return 0; hpet_set_mapping(); + if (!hpet_virt_address) + return 0; /* * Read the period and check for a sane value: diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c index ff9bfd40429e..d73083021002 100644 --- a/arch/x86/kernel/hw_breakpoint.c +++ b/arch/x86/kernel/hw_breakpoint.c @@ -354,6 +354,7 @@ int hw_breakpoint_arch_parse(struct perf_event *bp, #endif default: WARN_ON_ONCE(1); + return -EINVAL; } /* diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c index a034cb808e7e..122548ad5c2e 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -569,6 +569,7 @@ void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs) unsigned long *sara = stack_addr(regs); ri->ret_addr = (kprobe_opcode_t *) *sara; + ri->fp = sara; /* Replace the return addr with trampoline addr */ *sara = (unsigned long) &kretprobe_trampoline; @@ -715,6 +716,7 @@ NOKPROBE_SYMBOL(kprobe_int3_handler); * calls trampoline_handler() runs, which calls the kretprobe's handler. */ asm( + ".text\n" ".global kretprobe_trampoline\n" ".type kretprobe_trampoline, @function\n" "kretprobe_trampoline:\n" @@ -748,26 +750,48 @@ asm( NOKPROBE_SYMBOL(kretprobe_trampoline); STACK_FRAME_NON_STANDARD(kretprobe_trampoline); +static struct kprobe kretprobe_kprobe = { + .addr = (void *)kretprobe_trampoline, +}; + /* * Called from kretprobe_trampoline */ static __used void *trampoline_handler(struct pt_regs *regs) { + struct kprobe_ctlblk *kcb; struct kretprobe_instance *ri = NULL; struct hlist_head *head, empty_rp; struct hlist_node *tmp; unsigned long flags, orig_ret_address = 0; unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline; kprobe_opcode_t *correct_ret_addr = NULL; + void *frame_pointer; + bool skipped = false; + + preempt_disable(); + + /* + * Set a dummy kprobe for avoiding kretprobe recursion. + * Since kretprobe never run in kprobe handler, kprobe must not + * be running at this point. + */ + kcb = get_kprobe_ctlblk(); + __this_cpu_write(current_kprobe, &kretprobe_kprobe); + kcb->kprobe_status = KPROBE_HIT_ACTIVE; INIT_HLIST_HEAD(&empty_rp); kretprobe_hash_lock(current, &head, &flags); /* fixup registers */ #ifdef CONFIG_X86_64 regs->cs = __KERNEL_CS; + /* On x86-64, we use pt_regs->sp for return address holder. */ + frame_pointer = ®s->sp; #else regs->cs = __KERNEL_CS | get_kernel_rpl(); regs->gs = 0; + /* On x86-32, we use pt_regs->flags for return address holder. */ + frame_pointer = ®s->flags; #endif regs->ip = trampoline_address; regs->orig_ax = ~0UL; @@ -789,8 +813,25 @@ static __used void *trampoline_handler(struct pt_regs *regs) if (ri->task != current) /* another task is sharing our hash bucket */ continue; + /* + * Return probes must be pushed on this hash list correct + * order (same as return order) so that it can be poped + * correctly. However, if we find it is pushed it incorrect + * order, this means we find a function which should not be + * probed, because the wrong order entry is pushed on the + * path of processing other kretprobe itself. + */ + if (ri->fp != frame_pointer) { + if (!skipped) + pr_warn("kretprobe is stacked incorrectly. Trying to fixup.\n"); + skipped = true; + continue; + } orig_ret_address = (unsigned long)ri->ret_addr; + if (skipped) + pr_warn("%ps must be blacklisted because of incorrect kretprobe order\n", + ri->rp->kp.addr); if (orig_ret_address != trampoline_address) /* @@ -808,14 +849,15 @@ static __used void *trampoline_handler(struct pt_regs *regs) if (ri->task != current) /* another task is sharing our hash bucket */ continue; + if (ri->fp != frame_pointer) + continue; orig_ret_address = (unsigned long)ri->ret_addr; if (ri->rp && ri->rp->handler) { __this_cpu_write(current_kprobe, &ri->rp->kp); - get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE; ri->ret_addr = correct_ret_addr; ri->rp->handler(ri, regs); - __this_cpu_write(current_kprobe, NULL); + __this_cpu_write(current_kprobe, &kretprobe_kprobe); } recycle_rp_inst(ri, &empty_rp); @@ -831,6 +873,9 @@ static __used void *trampoline_handler(struct pt_regs *regs) kretprobe_hash_unlock(current, &flags); + __this_cpu_write(current_kprobe, NULL); + preempt_enable(); + hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) { hlist_del(&ri->hlist); kfree(ri); diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index 6135ae8ce036..b2463fcb20a8 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -113,7 +113,7 @@ static void do_sanity_check(struct mm_struct *mm, * tables. */ WARN_ON(!had_kernel_mapping); - if (static_cpu_has(X86_FEATURE_PTI)) + if (boot_cpu_has(X86_FEATURE_PTI)) WARN_ON(!had_user_mapping); } else { /* @@ -121,7 +121,7 @@ static void do_sanity_check(struct mm_struct *mm, * Sync the pgd to the usermode tables. */ WARN_ON(had_kernel_mapping); - if (static_cpu_has(X86_FEATURE_PTI)) + if (boot_cpu_has(X86_FEATURE_PTI)) WARN_ON(had_user_mapping); } } @@ -156,7 +156,7 @@ static void map_ldt_struct_to_user(struct mm_struct *mm) k_pmd = pgd_to_pmd_walk(k_pgd, LDT_BASE_ADDR); u_pmd = pgd_to_pmd_walk(u_pgd, LDT_BASE_ADDR); - if (static_cpu_has(X86_FEATURE_PTI) && !mm->context.ldt) + if (boot_cpu_has(X86_FEATURE_PTI) && !mm->context.ldt) set_pmd(u_pmd, *k_pmd); } @@ -181,7 +181,7 @@ static void map_ldt_struct_to_user(struct mm_struct *mm) { pgd_t *pgd = pgd_offset(mm, LDT_BASE_ADDR); - if (static_cpu_has(X86_FEATURE_PTI) && !mm->context.ldt) + if (boot_cpu_has(X86_FEATURE_PTI) && !mm->context.ldt) set_pgd(kernel_to_user_pgdp(pgd), *pgd); } @@ -208,7 +208,7 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) spinlock_t *ptl; int i, nr_pages; - if (!static_cpu_has(X86_FEATURE_PTI)) + if (!boot_cpu_has(X86_FEATURE_PTI)) return 0; /* @@ -271,7 +271,7 @@ static void unmap_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt) return; /* LDT map/unmap is only required for PTI */ - if (!static_cpu_has(X86_FEATURE_PTI)) + if (!boot_cpu_has(X86_FEATURE_PTI)) return; nr_pages = DIV_ROUND_UP(ldt->nr_entries * LDT_ENTRY_SIZE, PAGE_SIZE); @@ -311,7 +311,7 @@ static void free_ldt_pgtables(struct mm_struct *mm) unsigned long start = LDT_BASE_ADDR; unsigned long end = LDT_END_ADDR; - if (!static_cpu_has(X86_FEATURE_PTI)) + if (!boot_cpu_has(X86_FEATURE_PTI)) return; tlb_gather_mmu(&tlb, mm, start, end); diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 3482460d984d..1bfe5c6e6cfe 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -598,8 +598,8 @@ static int __init smp_scan_config(unsigned long base, unsigned long length) mpf_base = base; mpf_found = true; - pr_info("found SMP MP-table at [mem %#010lx-%#010lx] mapped at [%p]\n", - base, base + sizeof(*mpf) - 1, mpf); + pr_info("found SMP MP-table at [mem %#010lx-%#010lx]\n", + base, base + sizeof(*mpf) - 1); memblock_reserve(base, sizeof(*mpf)); if (mpf->physptr) diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index c0e0101133f3..7bbaa6baf37f 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -121,7 +121,7 @@ DEFINE_STATIC_KEY_TRUE(virt_spin_lock_key); void __init native_pv_lock_init(void) { - if (!static_cpu_has(X86_FEATURE_HYPERVISOR)) + if (!boot_cpu_has(X86_FEATURE_HYPERVISOR)) static_branch_disable(&virt_spin_lock_key); } diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c index c06c4c16c6b6..07c30ee17425 100644 --- a/arch/x86/kernel/perf_regs.c +++ b/arch/x86/kernel/perf_regs.c @@ -59,18 +59,34 @@ static unsigned int pt_regs_offset[PERF_REG_X86_MAX] = { u64 perf_reg_value(struct pt_regs *regs, int idx) { + struct x86_perf_regs *perf_regs; + + if (idx >= PERF_REG_X86_XMM0 && idx < PERF_REG_X86_XMM_MAX) { + perf_regs = container_of(regs, struct x86_perf_regs, regs); + if (!perf_regs->xmm_regs) + return 0; + return perf_regs->xmm_regs[idx - PERF_REG_X86_XMM0]; + } + if (WARN_ON_ONCE(idx >= ARRAY_SIZE(pt_regs_offset))) return 0; return regs_get_register(regs, pt_regs_offset[idx]); } -#define REG_RESERVED (~((1ULL << PERF_REG_X86_MAX) - 1ULL)) - #ifdef CONFIG_X86_32 +#define REG_NOSUPPORT ((1ULL << PERF_REG_X86_R8) | \ + (1ULL << PERF_REG_X86_R9) | \ + (1ULL << PERF_REG_X86_R10) | \ + (1ULL << PERF_REG_X86_R11) | \ + (1ULL << PERF_REG_X86_R12) | \ + (1ULL << PERF_REG_X86_R13) | \ + (1ULL << PERF_REG_X86_R14) | \ + (1ULL << PERF_REG_X86_R15)) + int perf_reg_validate(u64 mask) { - if (!mask || mask & REG_RESERVED) + if (!mask || (mask & REG_NOSUPPORT)) return -EINVAL; return 0; @@ -96,10 +112,7 @@ void perf_get_regs_user(struct perf_regs *regs_user, int perf_reg_validate(u64 mask) { - if (!mask || mask & REG_RESERVED) - return -EINVAL; - - if (mask & REG_NOSUPPORT) + if (!mask || (mask & REG_NOSUPPORT)) return -EINVAL; return 0; diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 58ac7be52c7a..d1d312d012a6 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -236,7 +236,7 @@ static int get_cpuid_mode(void) static int set_cpuid_mode(struct task_struct *task, unsigned long cpuid_enabled) { - if (!static_cpu_has(X86_FEATURE_CPUID_FAULT)) + if (!boot_cpu_has(X86_FEATURE_CPUID_FAULT)) return -ENODEV; if (cpuid_enabled) @@ -426,6 +426,8 @@ static __always_inline void __speculation_ctrl_update(unsigned long tifp, u64 msr = x86_spec_ctrl_base; bool updmsr = false; + lockdep_assert_irqs_disabled(); + /* * If TIF_SSBD is different, select the proper mitigation * method. Note that if SSBD mitigation is disabled or permanentely @@ -477,10 +479,12 @@ static unsigned long speculation_ctrl_update_tif(struct task_struct *tsk) void speculation_ctrl_update(unsigned long tif) { + unsigned long flags; + /* Forced update. Make sure all relevant TIF flags are different */ - preempt_disable(); + local_irq_save(flags); __speculation_ctrl_update(~tif, tif); - preempt_enable(); + local_irq_restore(flags); } /* Called from seccomp/prctl update */ @@ -666,7 +670,7 @@ static int prefer_mwait_c1_over_halt(const struct cpuinfo_x86 *c) if (c->x86_vendor != X86_VENDOR_INTEL) return 0; - if (!cpu_has(c, X86_FEATURE_MWAIT) || static_cpu_has_bug(X86_BUG_MONITOR)) + if (!cpu_has(c, X86_FEATURE_MWAIT) || boot_cpu_has_bug(X86_BUG_MONITOR)) return 0; return 1; diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index e471d8e6f0b2..70933193878c 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -127,6 +127,13 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long sp, struct task_struct *tsk; int err; + /* + * For a new task use the RESET flags value since there is no before. + * All the status flags are zero; DF and all the system flags must also + * be 0, specifically IF must be 0 because we context switch to the new + * task with interrupts disabled. + */ + frame->flags = X86_EFLAGS_FIXED; frame->bp = 0; frame->ret_addr = (unsigned long) ret_from_fork; p->thread.sp = (unsigned long) fork_frame; diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 6a62f4af9fcf..844a28b29967 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -392,6 +392,7 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long sp, childregs = task_pt_regs(p); fork_frame = container_of(childregs, struct fork_frame, regs); frame = &fork_frame->frame; + frame->bp = 0; frame->ret_addr = (unsigned long) ret_from_fork; p->thread.sp = (unsigned long) fork_frame; diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 725624b6c0c0..09d6bded3c1e 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -81,6 +81,19 @@ static int __init set_bios_reboot(const struct dmi_system_id *d) return 0; } +/* + * Some machines don't handle the default ACPI reboot method and + * require the EFI reboot method: + */ +static int __init set_efi_reboot(const struct dmi_system_id *d) +{ + if (reboot_type != BOOT_EFI && !efi_runtime_disabled()) { + reboot_type = BOOT_EFI; + pr_info("%s series board detected. Selecting EFI-method for reboot.\n", d->ident); + } + return 0; +} + void __noreturn machine_real_restart(unsigned int type) { local_irq_disable(); @@ -108,7 +121,7 @@ void __noreturn machine_real_restart(unsigned int type) write_cr3(real_mode_header->trampoline_pgd); /* Exiting long mode will fail if CR4.PCIDE is set. */ - if (static_cpu_has(X86_FEATURE_PCID)) + if (boot_cpu_has(X86_FEATURE_PCID)) cr4_clear_bits(X86_CR4_PCIDE); #endif @@ -166,6 +179,14 @@ static const struct dmi_system_id reboot_dmi_table[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"), }, }, + { /* Handle reboot issue on Acer TravelMate X514-51T */ + .callback = set_efi_reboot, + .ident = "Acer TravelMate X514-51T", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate X514-51T"), + }, + }, /* Apple */ { /* Handle problems with rebooting on Apple MacBook5 */ diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 3d872a527cd9..3773905cd2c1 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1005,13 +1005,11 @@ void __init setup_arch(char **cmdline_p) if (efi_enabled(EFI_BOOT)) efi_init(); - dmi_scan_machine(); - dmi_memdev_walk(); - dmi_set_dump_stack_arch_desc(); + dmi_setup(); /* * VMware detection requires dmi to be available, so this - * needs to be done after dmi_scan_machine(), for the boot CPU. + * needs to be done after dmi_setup(), for the boot CPU. */ init_hypervisor_platform(); diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 08dfd4c1a4f9..dff90fb6a9af 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -132,16 +132,6 @@ static int restore_sigcontext(struct pt_regs *regs, COPY_SEG_CPL3(cs); COPY_SEG_CPL3(ss); -#ifdef CONFIG_X86_64 - /* - * Fix up SS if needed for the benefit of old DOSEMU and - * CRIU. - */ - if (unlikely(!(uc_flags & UC_STRICT_RESTORE_SS) && - user_64bit_mode(regs))) - force_valid_ss(regs); -#endif - get_user_ex(tmpflags, &sc->flags); regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS); regs->orig_ax = -1; /* disable syscall checks */ @@ -150,6 +140,15 @@ static int restore_sigcontext(struct pt_regs *regs, buf = (void __user *)buf_val; } get_user_catch(err); +#ifdef CONFIG_X86_64 + /* + * Fix up SS if needed for the benefit of old DOSEMU and + * CRIU. + */ + if (unlikely(!(uc_flags & UC_STRICT_RESTORE_SS) && user_64bit_mode(regs))) + force_valid_ss(regs); +#endif + err |= fpu__restore_sig(buf, IS_ENABLED(CONFIG_X86_32)); force_iret(); @@ -461,6 +460,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, { struct rt_sigframe __user *frame; void __user *fp = NULL; + unsigned long uc_flags; int err = 0; frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe), &fp); @@ -473,9 +473,11 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, return -EFAULT; } + uc_flags = frame_uc_flags(regs); + put_user_try { /* Create the ucontext. */ - put_user_ex(frame_uc_flags(regs), &frame->uc.uc_flags); + put_user_ex(uc_flags, &frame->uc.uc_flags); put_user_ex(0, &frame->uc.uc_link); save_altstack_ex(&frame->uc.uc_stack, regs->sp); @@ -541,6 +543,7 @@ static int x32_setup_rt_frame(struct ksignal *ksig, { #ifdef CONFIG_X86_X32_ABI struct rt_sigframe_x32 __user *frame; + unsigned long uc_flags; void __user *restorer; int err = 0; void __user *fpstate = NULL; @@ -555,9 +558,11 @@ static int x32_setup_rt_frame(struct ksignal *ksig, return -EFAULT; } + uc_flags = frame_uc_flags(regs); + put_user_try { /* Create the ucontext. */ - put_user_ex(frame_uc_flags(regs), &frame->uc.uc_flags); + put_user_ex(uc_flags, &frame->uc.uc_flags); put_user_ex(0, &frame->uc.uc_link); compat_save_altstack_ex(&frame->uc.uc_stack, regs->sp); put_user_ex(0, &frame->uc.uc__pad0); @@ -688,10 +693,7 @@ setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs) sigset_t *set = sigmask_to_save(); compat_sigset_t *cset = (compat_sigset_t *) set; - /* - * Increment event counter and perform fixup for the pre-signal - * frame. - */ + /* Perform fixup for the pre-signal frame. */ rseq_signal_deliver(ksig, regs); /* Set up the stack frame */ diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index 5c2d71a1dc06..2abf27d7df6b 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -12,78 +12,31 @@ #include <asm/stacktrace.h> #include <asm/unwind.h> -static int save_stack_address(struct stack_trace *trace, unsigned long addr, - bool nosched) -{ - if (nosched && in_sched_functions(addr)) - return 0; - - if (trace->skip > 0) { - trace->skip--; - return 0; - } - - if (trace->nr_entries >= trace->max_entries) - return -1; - - trace->entries[trace->nr_entries++] = addr; - return 0; -} - -static void noinline __save_stack_trace(struct stack_trace *trace, - struct task_struct *task, struct pt_regs *regs, - bool nosched) +void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie, + struct task_struct *task, struct pt_regs *regs) { struct unwind_state state; unsigned long addr; - if (regs) - save_stack_address(trace, regs->ip, nosched); + if (regs && !consume_entry(cookie, regs->ip, false)) + return; for (unwind_start(&state, task, regs, NULL); !unwind_done(&state); unwind_next_frame(&state)) { addr = unwind_get_return_address(&state); - if (!addr || save_stack_address(trace, addr, nosched)) + if (!addr || !consume_entry(cookie, addr, false)) break; } - - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; } /* - * Save stack-backtrace addresses into a stack_trace buffer. + * This function returns an error if it detects any unreliable features of the + * stack. Otherwise it guarantees that the stack trace is reliable. + * + * If the task is not 'current', the caller *must* ensure the task is inactive. */ -void save_stack_trace(struct stack_trace *trace) -{ - trace->skip++; - __save_stack_trace(trace, current, NULL, false); -} -EXPORT_SYMBOL_GPL(save_stack_trace); - -void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace) -{ - __save_stack_trace(trace, current, regs, false); -} - -void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) -{ - if (!try_get_task_stack(tsk)) - return; - - if (tsk == current) - trace->skip++; - __save_stack_trace(trace, tsk, NULL, true); - - put_task_stack(tsk); -} -EXPORT_SYMBOL_GPL(save_stack_trace_tsk); - -#ifdef CONFIG_HAVE_RELIABLE_STACKTRACE - -static int __always_inline -__save_stack_trace_reliable(struct stack_trace *trace, - struct task_struct *task) +int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry, + void *cookie, struct task_struct *task) { struct unwind_state state; struct pt_regs *regs; @@ -97,7 +50,7 @@ __save_stack_trace_reliable(struct stack_trace *trace, if (regs) { /* Success path for user tasks */ if (user_mode(regs)) - goto success; + return 0; /* * Kernel mode registers on the stack indicate an @@ -120,7 +73,7 @@ __save_stack_trace_reliable(struct stack_trace *trace, if (!addr) return -EINVAL; - if (save_stack_address(trace, addr, false)) + if (!consume_entry(cookie, addr, false)) return -EINVAL; } @@ -132,39 +85,9 @@ __save_stack_trace_reliable(struct stack_trace *trace, if (!(task->flags & (PF_KTHREAD | PF_IDLE))) return -EINVAL; -success: - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; - return 0; } -/* - * This function returns an error if it detects any unreliable features of the - * stack. Otherwise it guarantees that the stack trace is reliable. - * - * If the task is not 'current', the caller *must* ensure the task is inactive. - */ -int save_stack_trace_tsk_reliable(struct task_struct *tsk, - struct stack_trace *trace) -{ - int ret; - - /* - * If the task doesn't have a stack (e.g., a zombie), the stack is - * "reliably" empty. - */ - if (!try_get_task_stack(tsk)) - return 0; - - ret = __save_stack_trace_reliable(trace, tsk); - - put_task_stack(tsk); - - return ret; -} -#endif /* CONFIG_HAVE_RELIABLE_STACKTRACE */ - /* Userspace stacktrace - based on kernel/trace/trace_sysprof.c */ struct stack_frame_user { @@ -189,15 +112,15 @@ copy_stack_frame(const void __user *fp, struct stack_frame_user *frame) return ret; } -static inline void __save_stack_trace_user(struct stack_trace *trace) +void arch_stack_walk_user(stack_trace_consume_fn consume_entry, void *cookie, + const struct pt_regs *regs) { - const struct pt_regs *regs = task_pt_regs(current); const void __user *fp = (const void __user *)regs->bp; - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = regs->ip; + if (!consume_entry(cookie, regs->ip, false)) + return; - while (trace->nr_entries < trace->max_entries) { + while (1) { struct stack_frame_user frame; frame.next_fp = NULL; @@ -207,8 +130,8 @@ static inline void __save_stack_trace_user(struct stack_trace *trace) if ((unsigned long)fp < regs->sp) break; if (frame.ret_addr) { - trace->entries[trace->nr_entries++] = - frame.ret_addr; + if (!consume_entry(cookie, frame.ret_addr, false)) + return; } if (fp == frame.next_fp) break; @@ -216,14 +139,3 @@ static inline void __save_stack_trace_user(struct stack_trace *trace) } } -void save_stack_trace_user(struct stack_trace *trace) -{ - /* - * Trace user stack if we are not a kernel thread - */ - if (current->mm) { - __save_stack_trace_user(trace); - } - if (trace->nr_entries < trace->max_entries) - trace->entries[trace->nr_entries++] = ULONG_MAX; -} diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c index a092b6b40c6b..6a38717d179c 100644 --- a/arch/x86/kernel/vm86_32.c +++ b/arch/x86/kernel/vm86_32.c @@ -369,7 +369,7 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus) preempt_disable(); tsk->thread.sp0 += 16; - if (static_cpu_has(X86_FEATURE_SEP)) { + if (boot_cpu_has(X86_FEATURE_SEP)) { tsk->thread.sysenter_cs = 0; refresh_sysenter_cs(&tsk->thread); } diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index bad8c51fee6e..a5127b2c195f 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -362,7 +362,7 @@ SECTIONS .bss : AT(ADDR(.bss) - LOAD_OFFSET) { __bss_start = .; *(.bss..page_aligned) - *(.bss) + *(BSS_MAIN) BSS_DECRYPTED . = ALIGN(PAGE_SIZE); __bss_stop = .; diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index c338984c850d..d0d5dd44b4f4 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2331,24 +2331,18 @@ static int em_lseg(struct x86_emulate_ctxt *ctxt) static int emulator_has_longmode(struct x86_emulate_ctxt *ctxt) { +#ifdef CONFIG_X86_64 u32 eax, ebx, ecx, edx; eax = 0x80000001; ecx = 0; ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx, false); return edx & bit(X86_FEATURE_LM); +#else + return false; +#endif } -#define GET_SMSTATE(type, smbase, offset) \ - ({ \ - type __val; \ - int r = ctxt->ops->read_phys(ctxt, smbase + offset, &__val, \ - sizeof(__val)); \ - if (r != X86EMUL_CONTINUE) \ - return X86EMUL_UNHANDLEABLE; \ - __val; \ - }) - static void rsm_set_desc_flags(struct desc_struct *desc, u32 flags) { desc->g = (flags >> 23) & 1; @@ -2361,27 +2355,30 @@ static void rsm_set_desc_flags(struct desc_struct *desc, u32 flags) desc->type = (flags >> 8) & 15; } -static int rsm_load_seg_32(struct x86_emulate_ctxt *ctxt, u64 smbase, int n) +static int rsm_load_seg_32(struct x86_emulate_ctxt *ctxt, const char *smstate, + int n) { struct desc_struct desc; int offset; u16 selector; - selector = GET_SMSTATE(u32, smbase, 0x7fa8 + n * 4); + selector = GET_SMSTATE(u32, smstate, 0x7fa8 + n * 4); if (n < 3) offset = 0x7f84 + n * 12; else offset = 0x7f2c + (n - 3) * 12; - set_desc_base(&desc, GET_SMSTATE(u32, smbase, offset + 8)); - set_desc_limit(&desc, GET_SMSTATE(u32, smbase, offset + 4)); - rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smbase, offset)); + set_desc_base(&desc, GET_SMSTATE(u32, smstate, offset + 8)); + set_desc_limit(&desc, GET_SMSTATE(u32, smstate, offset + 4)); + rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smstate, offset)); ctxt->ops->set_segment(ctxt, selector, &desc, 0, n); return X86EMUL_CONTINUE; } -static int rsm_load_seg_64(struct x86_emulate_ctxt *ctxt, u64 smbase, int n) +#ifdef CONFIG_X86_64 +static int rsm_load_seg_64(struct x86_emulate_ctxt *ctxt, const char *smstate, + int n) { struct desc_struct desc; int offset; @@ -2390,15 +2387,16 @@ static int rsm_load_seg_64(struct x86_emulate_ctxt *ctxt, u64 smbase, int n) offset = 0x7e00 + n * 16; - selector = GET_SMSTATE(u16, smbase, offset); - rsm_set_desc_flags(&desc, GET_SMSTATE(u16, smbase, offset + 2) << 8); - set_desc_limit(&desc, GET_SMSTATE(u32, smbase, offset + 4)); - set_desc_base(&desc, GET_SMSTATE(u32, smbase, offset + 8)); - base3 = GET_SMSTATE(u32, smbase, offset + 12); + selector = GET_SMSTATE(u16, smstate, offset); + rsm_set_desc_flags(&desc, GET_SMSTATE(u16, smstate, offset + 2) << 8); + set_desc_limit(&desc, GET_SMSTATE(u32, smstate, offset + 4)); + set_desc_base(&desc, GET_SMSTATE(u32, smstate, offset + 8)); + base3 = GET_SMSTATE(u32, smstate, offset + 12); ctxt->ops->set_segment(ctxt, selector, &desc, base3, n); return X86EMUL_CONTINUE; } +#endif static int rsm_enter_protected_mode(struct x86_emulate_ctxt *ctxt, u64 cr0, u64 cr3, u64 cr4) @@ -2445,7 +2443,8 @@ static int rsm_enter_protected_mode(struct x86_emulate_ctxt *ctxt, return X86EMUL_CONTINUE; } -static int rsm_load_state_32(struct x86_emulate_ctxt *ctxt, u64 smbase) +static int rsm_load_state_32(struct x86_emulate_ctxt *ctxt, + const char *smstate) { struct desc_struct desc; struct desc_ptr dt; @@ -2453,53 +2452,55 @@ static int rsm_load_state_32(struct x86_emulate_ctxt *ctxt, u64 smbase) u32 val, cr0, cr3, cr4; int i; - cr0 = GET_SMSTATE(u32, smbase, 0x7ffc); - cr3 = GET_SMSTATE(u32, smbase, 0x7ff8); - ctxt->eflags = GET_SMSTATE(u32, smbase, 0x7ff4) | X86_EFLAGS_FIXED; - ctxt->_eip = GET_SMSTATE(u32, smbase, 0x7ff0); + cr0 = GET_SMSTATE(u32, smstate, 0x7ffc); + cr3 = GET_SMSTATE(u32, smstate, 0x7ff8); + ctxt->eflags = GET_SMSTATE(u32, smstate, 0x7ff4) | X86_EFLAGS_FIXED; + ctxt->_eip = GET_SMSTATE(u32, smstate, 0x7ff0); for (i = 0; i < 8; i++) - *reg_write(ctxt, i) = GET_SMSTATE(u32, smbase, 0x7fd0 + i * 4); + *reg_write(ctxt, i) = GET_SMSTATE(u32, smstate, 0x7fd0 + i * 4); - val = GET_SMSTATE(u32, smbase, 0x7fcc); + val = GET_SMSTATE(u32, smstate, 0x7fcc); ctxt->ops->set_dr(ctxt, 6, (val & DR6_VOLATILE) | DR6_FIXED_1); - val = GET_SMSTATE(u32, smbase, 0x7fc8); + val = GET_SMSTATE(u32, smstate, 0x7fc8); ctxt->ops->set_dr(ctxt, 7, (val & DR7_VOLATILE) | DR7_FIXED_1); - selector = GET_SMSTATE(u32, smbase, 0x7fc4); - set_desc_base(&desc, GET_SMSTATE(u32, smbase, 0x7f64)); - set_desc_limit(&desc, GET_SMSTATE(u32, smbase, 0x7f60)); - rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smbase, 0x7f5c)); + selector = GET_SMSTATE(u32, smstate, 0x7fc4); + set_desc_base(&desc, GET_SMSTATE(u32, smstate, 0x7f64)); + set_desc_limit(&desc, GET_SMSTATE(u32, smstate, 0x7f60)); + rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smstate, 0x7f5c)); ctxt->ops->set_segment(ctxt, selector, &desc, 0, VCPU_SREG_TR); - selector = GET_SMSTATE(u32, smbase, 0x7fc0); - set_desc_base(&desc, GET_SMSTATE(u32, smbase, 0x7f80)); - set_desc_limit(&desc, GET_SMSTATE(u32, smbase, 0x7f7c)); - rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smbase, 0x7f78)); + selector = GET_SMSTATE(u32, smstate, 0x7fc0); + set_desc_base(&desc, GET_SMSTATE(u32, smstate, 0x7f80)); + set_desc_limit(&desc, GET_SMSTATE(u32, smstate, 0x7f7c)); + rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smstate, 0x7f78)); ctxt->ops->set_segment(ctxt, selector, &desc, 0, VCPU_SREG_LDTR); - dt.address = GET_SMSTATE(u32, smbase, 0x7f74); - dt.size = GET_SMSTATE(u32, smbase, 0x7f70); + dt.address = GET_SMSTATE(u32, smstate, 0x7f74); + dt.size = GET_SMSTATE(u32, smstate, 0x7f70); ctxt->ops->set_gdt(ctxt, &dt); - dt.address = GET_SMSTATE(u32, smbase, 0x7f58); - dt.size = GET_SMSTATE(u32, smbase, 0x7f54); + dt.address = GET_SMSTATE(u32, smstate, 0x7f58); + dt.size = GET_SMSTATE(u32, smstate, 0x7f54); ctxt->ops->set_idt(ctxt, &dt); for (i = 0; i < 6; i++) { - int r = rsm_load_seg_32(ctxt, smbase, i); + int r = rsm_load_seg_32(ctxt, smstate, i); if (r != X86EMUL_CONTINUE) return r; } - cr4 = GET_SMSTATE(u32, smbase, 0x7f14); + cr4 = GET_SMSTATE(u32, smstate, 0x7f14); - ctxt->ops->set_smbase(ctxt, GET_SMSTATE(u32, smbase, 0x7ef8)); + ctxt->ops->set_smbase(ctxt, GET_SMSTATE(u32, smstate, 0x7ef8)); return rsm_enter_protected_mode(ctxt, cr0, cr3, cr4); } -static int rsm_load_state_64(struct x86_emulate_ctxt *ctxt, u64 smbase) +#ifdef CONFIG_X86_64 +static int rsm_load_state_64(struct x86_emulate_ctxt *ctxt, + const char *smstate) { struct desc_struct desc; struct desc_ptr dt; @@ -2509,43 +2510,43 @@ static int rsm_load_state_64(struct x86_emulate_ctxt *ctxt, u64 smbase) int i, r; for (i = 0; i < 16; i++) - *reg_write(ctxt, i) = GET_SMSTATE(u64, smbase, 0x7ff8 - i * 8); + *reg_write(ctxt, i) = GET_SMSTATE(u64, smstate, 0x7ff8 - i * 8); - ctxt->_eip = GET_SMSTATE(u64, smbase, 0x7f78); - ctxt->eflags = GET_SMSTATE(u32, smbase, 0x7f70) | X86_EFLAGS_FIXED; + ctxt->_eip = GET_SMSTATE(u64, smstate, 0x7f78); + ctxt->eflags = GET_SMSTATE(u32, smstate, 0x7f70) | X86_EFLAGS_FIXED; - val = GET_SMSTATE(u32, smbase, 0x7f68); + val = GET_SMSTATE(u32, smstate, 0x7f68); ctxt->ops->set_dr(ctxt, 6, (val & DR6_VOLATILE) | DR6_FIXED_1); - val = GET_SMSTATE(u32, smbase, 0x7f60); + val = GET_SMSTATE(u32, smstate, 0x7f60); ctxt->ops->set_dr(ctxt, 7, (val & DR7_VOLATILE) | DR7_FIXED_1); - cr0 = GET_SMSTATE(u64, smbase, 0x7f58); - cr3 = GET_SMSTATE(u64, smbase, 0x7f50); - cr4 = GET_SMSTATE(u64, smbase, 0x7f48); - ctxt->ops->set_smbase(ctxt, GET_SMSTATE(u32, smbase, 0x7f00)); - val = GET_SMSTATE(u64, smbase, 0x7ed0); + cr0 = GET_SMSTATE(u64, smstate, 0x7f58); + cr3 = GET_SMSTATE(u64, smstate, 0x7f50); + cr4 = GET_SMSTATE(u64, smstate, 0x7f48); + ctxt->ops->set_smbase(ctxt, GET_SMSTATE(u32, smstate, 0x7f00)); + val = GET_SMSTATE(u64, smstate, 0x7ed0); ctxt->ops->set_msr(ctxt, MSR_EFER, val & ~EFER_LMA); - selector = GET_SMSTATE(u32, smbase, 0x7e90); - rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smbase, 0x7e92) << 8); - set_desc_limit(&desc, GET_SMSTATE(u32, smbase, 0x7e94)); - set_desc_base(&desc, GET_SMSTATE(u32, smbase, 0x7e98)); - base3 = GET_SMSTATE(u32, smbase, 0x7e9c); + selector = GET_SMSTATE(u32, smstate, 0x7e90); + rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smstate, 0x7e92) << 8); + set_desc_limit(&desc, GET_SMSTATE(u32, smstate, 0x7e94)); + set_desc_base(&desc, GET_SMSTATE(u32, smstate, 0x7e98)); + base3 = GET_SMSTATE(u32, smstate, 0x7e9c); ctxt->ops->set_segment(ctxt, selector, &desc, base3, VCPU_SREG_TR); - dt.size = GET_SMSTATE(u32, smbase, 0x7e84); - dt.address = GET_SMSTATE(u64, smbase, 0x7e88); + dt.size = GET_SMSTATE(u32, smstate, 0x7e84); + dt.address = GET_SMSTATE(u64, smstate, 0x7e88); ctxt->ops->set_idt(ctxt, &dt); - selector = GET_SMSTATE(u32, smbase, 0x7e70); - rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smbase, 0x7e72) << 8); - set_desc_limit(&desc, GET_SMSTATE(u32, smbase, 0x7e74)); - set_desc_base(&desc, GET_SMSTATE(u32, smbase, 0x7e78)); - base3 = GET_SMSTATE(u32, smbase, 0x7e7c); + selector = GET_SMSTATE(u32, smstate, 0x7e70); + rsm_set_desc_flags(&desc, GET_SMSTATE(u32, smstate, 0x7e72) << 8); + set_desc_limit(&desc, GET_SMSTATE(u32, smstate, 0x7e74)); + set_desc_base(&desc, GET_SMSTATE(u32, smstate, 0x7e78)); + base3 = GET_SMSTATE(u32, smstate, 0x7e7c); ctxt->ops->set_segment(ctxt, selector, &desc, base3, VCPU_SREG_LDTR); - dt.size = GET_SMSTATE(u32, smbase, 0x7e64); - dt.address = GET_SMSTATE(u64, smbase, 0x7e68); + dt.size = GET_SMSTATE(u32, smstate, 0x7e64); + dt.address = GET_SMSTATE(u64, smstate, 0x7e68); ctxt->ops->set_gdt(ctxt, &dt); r = rsm_enter_protected_mode(ctxt, cr0, cr3, cr4); @@ -2553,37 +2554,49 @@ static int rsm_load_state_64(struct x86_emulate_ctxt *ctxt, u64 smbase) return r; for (i = 0; i < 6; i++) { - r = rsm_load_seg_64(ctxt, smbase, i); + r = rsm_load_seg_64(ctxt, smstate, i); if (r != X86EMUL_CONTINUE) return r; } return X86EMUL_CONTINUE; } +#endif static int em_rsm(struct x86_emulate_ctxt *ctxt) { unsigned long cr0, cr4, efer; + char buf[512]; u64 smbase; int ret; if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_MASK) == 0) return emulate_ud(ctxt); + smbase = ctxt->ops->get_smbase(ctxt); + + ret = ctxt->ops->read_phys(ctxt, smbase + 0xfe00, buf, sizeof(buf)); + if (ret != X86EMUL_CONTINUE) + return X86EMUL_UNHANDLEABLE; + + if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_INSIDE_NMI_MASK) == 0) + ctxt->ops->set_nmi_mask(ctxt, false); + + ctxt->ops->set_hflags(ctxt, ctxt->ops->get_hflags(ctxt) & + ~(X86EMUL_SMM_INSIDE_NMI_MASK | X86EMUL_SMM_MASK)); + /* * Get back to real mode, to prepare a safe state in which to load * CR0/CR3/CR4/EFER. It's all a bit more complicated if the vCPU * supports long mode. */ - cr4 = ctxt->ops->get_cr(ctxt, 4); if (emulator_has_longmode(ctxt)) { struct desc_struct cs_desc; /* Zero CR4.PCIDE before CR0.PG. */ - if (cr4 & X86_CR4_PCIDE) { + cr4 = ctxt->ops->get_cr(ctxt, 4); + if (cr4 & X86_CR4_PCIDE) ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PCIDE); - cr4 &= ~X86_CR4_PCIDE; - } /* A 32-bit code segment is required to clear EFER.LMA. */ memset(&cs_desc, 0, sizeof(cs_desc)); @@ -2597,39 +2610,39 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt) if (cr0 & X86_CR0_PE) ctxt->ops->set_cr(ctxt, 0, cr0 & ~(X86_CR0_PG | X86_CR0_PE)); - /* Now clear CR4.PAE (which must be done before clearing EFER.LME). */ - if (cr4 & X86_CR4_PAE) - ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE); - - /* And finally go back to 32-bit mode. */ - efer = 0; - ctxt->ops->set_msr(ctxt, MSR_EFER, efer); + if (emulator_has_longmode(ctxt)) { + /* Clear CR4.PAE before clearing EFER.LME. */ + cr4 = ctxt->ops->get_cr(ctxt, 4); + if (cr4 & X86_CR4_PAE) + ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE); - smbase = ctxt->ops->get_smbase(ctxt); + /* And finally go back to 32-bit mode. */ + efer = 0; + ctxt->ops->set_msr(ctxt, MSR_EFER, efer); + } /* * Give pre_leave_smm() a chance to make ISA-specific changes to the * vCPU state (e.g. enter guest mode) before loading state from the SMM * state-save area. */ - if (ctxt->ops->pre_leave_smm(ctxt, smbase)) + if (ctxt->ops->pre_leave_smm(ctxt, buf)) return X86EMUL_UNHANDLEABLE; +#ifdef CONFIG_X86_64 if (emulator_has_longmode(ctxt)) - ret = rsm_load_state_64(ctxt, smbase + 0x8000); + ret = rsm_load_state_64(ctxt, buf); else - ret = rsm_load_state_32(ctxt, smbase + 0x8000); +#endif + ret = rsm_load_state_32(ctxt, buf); if (ret != X86EMUL_CONTINUE) { /* FIXME: should triple fault */ return X86EMUL_UNHANDLEABLE; } - if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_INSIDE_NMI_MASK) == 0) - ctxt->ops->set_nmi_mask(ctxt, false); + ctxt->ops->post_leave_smm(ctxt); - ctxt->ops->set_hflags(ctxt, ctxt->ops->get_hflags(ctxt) & - ~(X86EMUL_SMM_INSIDE_NMI_MASK | X86EMUL_SMM_MASK)); return X86EMUL_CONTINUE; } diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 27c43525a05f..cc24b3a32c44 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -526,7 +526,9 @@ static int stimer_set_config(struct kvm_vcpu_hv_stimer *stimer, u64 config, new_config.enable = 0; stimer->config.as_uint64 = new_config.as_uint64; - stimer_mark_pending(stimer, false); + if (stimer->config.enable) + stimer_mark_pending(stimer, false); + return 0; } @@ -542,7 +544,10 @@ static int stimer_set_count(struct kvm_vcpu_hv_stimer *stimer, u64 count, stimer->config.enable = 0; else if (stimer->config.auto_enable) stimer->config.enable = 1; - stimer_mark_pending(stimer, false); + + if (stimer->config.enable) + stimer_mark_pending(stimer, false); + return 0; } @@ -1366,7 +1371,16 @@ static u64 kvm_hv_flush_tlb(struct kvm_vcpu *current_vcpu, u64 ingpa, valid_bank_mask = BIT_ULL(0); sparse_banks[0] = flush.processor_mask; - all_cpus = flush.flags & HV_FLUSH_ALL_PROCESSORS; + + /* + * Work around possible WS2012 bug: it sends hypercalls + * with processor_mask = 0x0 and HV_FLUSH_ALL_PROCESSORS clear, + * while also expecting us to flush something and crashing if + * we don't. Let's treat processor_mask == 0 same as + * HV_FLUSH_ALL_PROCESSORS. + */ + all_cpus = (flush.flags & HV_FLUSH_ALL_PROCESSORS) || + flush.processor_mask == 0; } else { if (unlikely(kvm_read_guest(kvm, ingpa, &flush_ex, sizeof(flush_ex)))) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 991fdf7fc17f..bd13fdddbdc4 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -70,7 +70,6 @@ #define APIC_BROADCAST 0xFF #define X2APIC_BROADCAST 0xFFFFFFFFul -static bool lapic_timer_advance_adjust_done = false; #define LAPIC_TIMER_ADVANCE_ADJUST_DONE 100 /* step-by-step approximation to mitigate fluctuation */ #define LAPIC_TIMER_ADVANCE_ADJUST_STEP 8 @@ -138,6 +137,7 @@ static inline bool kvm_apic_map_get_logical_dest(struct kvm_apic_map *map, if (offset <= max_apic_id) { u8 cluster_size = min(max_apic_id - offset + 1, 16U); + offset = array_index_nospec(offset, map->max_apic_id + 1); *cluster = &map->phys_map[offset]; *mask = dest_id & (0xffff >> (16 - cluster_size)); } else { @@ -901,7 +901,8 @@ static inline bool kvm_apic_map_get_dest_lapic(struct kvm *kvm, if (irq->dest_id > map->max_apic_id) { *bitmap = 0; } else { - *dst = &map->phys_map[irq->dest_id]; + u32 dest_id = array_index_nospec(irq->dest_id, map->max_apic_id + 1); + *dst = &map->phys_map[dest_id]; *bitmap = 1; } return true; @@ -1480,14 +1481,32 @@ static bool lapic_timer_int_injected(struct kvm_vcpu *vcpu) return false; } +static inline void __wait_lapic_expire(struct kvm_vcpu *vcpu, u64 guest_cycles) +{ + u64 timer_advance_ns = vcpu->arch.apic->lapic_timer.timer_advance_ns; + + /* + * If the guest TSC is running at a different ratio than the host, then + * convert the delay to nanoseconds to achieve an accurate delay. Note + * that __delay() uses delay_tsc whenever the hardware has TSC, thus + * always for VMX enabled hardware. + */ + if (vcpu->arch.tsc_scaling_ratio == kvm_default_tsc_scaling_ratio) { + __delay(min(guest_cycles, + nsec_to_cycles(vcpu, timer_advance_ns))); + } else { + u64 delay_ns = guest_cycles * 1000000ULL; + do_div(delay_ns, vcpu->arch.virtual_tsc_khz); + ndelay(min_t(u32, delay_ns, timer_advance_ns)); + } +} + void wait_lapic_expire(struct kvm_vcpu *vcpu) { struct kvm_lapic *apic = vcpu->arch.apic; + u32 timer_advance_ns = apic->lapic_timer.timer_advance_ns; u64 guest_tsc, tsc_deadline, ns; - if (!lapic_in_kernel(vcpu)) - return; - if (apic->lapic_timer.expired_tscdeadline == 0) return; @@ -1499,33 +1518,37 @@ void wait_lapic_expire(struct kvm_vcpu *vcpu) guest_tsc = kvm_read_l1_tsc(vcpu, rdtsc()); trace_kvm_wait_lapic_expire(vcpu->vcpu_id, guest_tsc - tsc_deadline); - /* __delay is delay_tsc whenever the hardware has TSC, thus always. */ if (guest_tsc < tsc_deadline) - __delay(min(tsc_deadline - guest_tsc, - nsec_to_cycles(vcpu, lapic_timer_advance_ns))); + __wait_lapic_expire(vcpu, tsc_deadline - guest_tsc); - if (!lapic_timer_advance_adjust_done) { + if (!apic->lapic_timer.timer_advance_adjust_done) { /* too early */ if (guest_tsc < tsc_deadline) { ns = (tsc_deadline - guest_tsc) * 1000000ULL; do_div(ns, vcpu->arch.virtual_tsc_khz); - lapic_timer_advance_ns -= min((unsigned int)ns, - lapic_timer_advance_ns / LAPIC_TIMER_ADVANCE_ADJUST_STEP); + timer_advance_ns -= min((u32)ns, + timer_advance_ns / LAPIC_TIMER_ADVANCE_ADJUST_STEP); } else { /* too late */ ns = (guest_tsc - tsc_deadline) * 1000000ULL; do_div(ns, vcpu->arch.virtual_tsc_khz); - lapic_timer_advance_ns += min((unsigned int)ns, - lapic_timer_advance_ns / LAPIC_TIMER_ADVANCE_ADJUST_STEP); + timer_advance_ns += min((u32)ns, + timer_advance_ns / LAPIC_TIMER_ADVANCE_ADJUST_STEP); } if (abs(guest_tsc - tsc_deadline) < LAPIC_TIMER_ADVANCE_ADJUST_DONE) - lapic_timer_advance_adjust_done = true; + apic->lapic_timer.timer_advance_adjust_done = true; + if (unlikely(timer_advance_ns > 5000)) { + timer_advance_ns = 0; + apic->lapic_timer.timer_advance_adjust_done = true; + } + apic->lapic_timer.timer_advance_ns = timer_advance_ns; } } static void start_sw_tscdeadline(struct kvm_lapic *apic) { - u64 guest_tsc, tscdeadline = apic->lapic_timer.tscdeadline; + struct kvm_timer *ktimer = &apic->lapic_timer; + u64 guest_tsc, tscdeadline = ktimer->tscdeadline; u64 ns = 0; ktime_t expire; struct kvm_vcpu *vcpu = apic->vcpu; @@ -1540,13 +1563,15 @@ static void start_sw_tscdeadline(struct kvm_lapic *apic) now = ktime_get(); guest_tsc = kvm_read_l1_tsc(vcpu, rdtsc()); - if (likely(tscdeadline > guest_tsc)) { - ns = (tscdeadline - guest_tsc) * 1000000ULL; - do_div(ns, this_tsc_khz); + + ns = (tscdeadline - guest_tsc) * 1000000ULL; + do_div(ns, this_tsc_khz); + + if (likely(tscdeadline > guest_tsc) && + likely(ns > apic->lapic_timer.timer_advance_ns)) { expire = ktime_add_ns(now, ns); - expire = ktime_sub_ns(expire, lapic_timer_advance_ns); - hrtimer_start(&apic->lapic_timer.timer, - expire, HRTIMER_MODE_ABS_PINNED); + expire = ktime_sub_ns(expire, ktimer->timer_advance_ns); + hrtimer_start(&ktimer->timer, expire, HRTIMER_MODE_ABS_PINNED); } else apic_timer_expired(apic); @@ -2253,7 +2278,7 @@ static enum hrtimer_restart apic_timer_fn(struct hrtimer *data) return HRTIMER_NORESTART; } -int kvm_create_lapic(struct kvm_vcpu *vcpu) +int kvm_create_lapic(struct kvm_vcpu *vcpu, int timer_advance_ns) { struct kvm_lapic *apic; @@ -2277,6 +2302,14 @@ int kvm_create_lapic(struct kvm_vcpu *vcpu) hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED); apic->lapic_timer.timer.function = apic_timer_fn; + if (timer_advance_ns == -1) { + apic->lapic_timer.timer_advance_ns = 1000; + apic->lapic_timer.timer_advance_adjust_done = false; + } else { + apic->lapic_timer.timer_advance_ns = timer_advance_ns; + apic->lapic_timer.timer_advance_adjust_done = true; + } + /* * APIC is created enabled. This will prevent kvm_lapic_set_base from diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index ff6ef9c3d760..d6d049ba3045 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -31,8 +31,10 @@ struct kvm_timer { u32 timer_mode_mask; u64 tscdeadline; u64 expired_tscdeadline; + u32 timer_advance_ns; atomic_t pending; /* accumulated triggered timers */ bool hv_timer_in_use; + bool timer_advance_adjust_done; }; struct kvm_lapic { @@ -62,7 +64,7 @@ struct kvm_lapic { struct dest_map; -int kvm_create_lapic(struct kvm_vcpu *vcpu); +int kvm_create_lapic(struct kvm_vcpu *vcpu, int timer_advance_ns); void kvm_free_lapic(struct kvm_vcpu *vcpu); int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 7837ab001d80..d9c7b45d231f 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -182,7 +182,7 @@ struct kvm_shadow_walk_iterator { static const union kvm_mmu_page_role mmu_base_role_mask = { .cr0_wp = 1, - .cr4_pae = 1, + .gpte_is_8_bytes = 1, .nxe = 1, .smep_andnot_wp = 1, .smap_andnot_wp = 1, @@ -2007,7 +2007,7 @@ static int is_empty_shadow_page(u64 *spt) * aggregate version in order to make the slab shrinker * faster */ -static inline void kvm_mod_used_mmu_pages(struct kvm *kvm, int nr) +static inline void kvm_mod_used_mmu_pages(struct kvm *kvm, unsigned long nr) { kvm->arch.n_used_mmu_pages += nr; percpu_counter_add(&kvm_total_used_mmu_pages, nr); @@ -2205,6 +2205,7 @@ static bool kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp, static void kvm_mmu_commit_zap_page(struct kvm *kvm, struct list_head *invalid_list); + #define for_each_valid_sp(_kvm, _sp, _gfn) \ hlist_for_each_entry(_sp, \ &(_kvm)->arch.mmu_page_hash[kvm_page_table_hashfn(_gfn)], hash_link) \ @@ -2215,12 +2216,17 @@ static void kvm_mmu_commit_zap_page(struct kvm *kvm, for_each_valid_sp(_kvm, _sp, _gfn) \ if ((_sp)->gfn != (_gfn) || (_sp)->role.direct) {} else +static inline bool is_ept_sp(struct kvm_mmu_page *sp) +{ + return sp->role.cr0_wp && sp->role.smap_andnot_wp; +} + /* @sp->gfn should be write-protected at the call site */ static bool __kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, struct list_head *invalid_list) { - if (sp->role.cr4_pae != !!is_pae(vcpu) - || vcpu->arch.mmu->sync_page(vcpu, sp) == 0) { + if ((!is_ept_sp(sp) && sp->role.gpte_is_8_bytes != !!is_pae(vcpu)) || + vcpu->arch.mmu->sync_page(vcpu, sp) == 0) { kvm_mmu_prepare_zap_page(vcpu->kvm, sp, invalid_list); return false; } @@ -2232,7 +2238,7 @@ static bool kvm_mmu_remote_flush_or_zap(struct kvm *kvm, struct list_head *invalid_list, bool remote_flush) { - if (!remote_flush && !list_empty(invalid_list)) + if (!remote_flush && list_empty(invalid_list)) return false; if (!list_empty(invalid_list)) @@ -2423,7 +2429,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu, role.level = level; role.direct = direct; if (role.direct) - role.cr4_pae = 0; + role.gpte_is_8_bytes = true; role.access = access; if (!vcpu->arch.mmu->direct_map && vcpu->arch.mmu->root_level <= PT32_ROOT_LEVEL) { @@ -2757,7 +2763,7 @@ static bool prepare_zap_oldest_mmu_page(struct kvm *kvm, * Changing the number of mmu pages allocated to the vm * Note: if goal_nr_mmu_pages is too small, you will get dead lock */ -void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int goal_nr_mmu_pages) +void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned long goal_nr_mmu_pages) { LIST_HEAD(invalid_list); @@ -4775,6 +4781,7 @@ static union kvm_mmu_extended_role kvm_calc_mmu_role_ext(struct kvm_vcpu *vcpu) union kvm_mmu_extended_role ext = {0}; ext.cr0_pg = !!is_paging(vcpu); + ext.cr4_pae = !!is_pae(vcpu); ext.cr4_smep = !!kvm_read_cr4_bits(vcpu, X86_CR4_SMEP); ext.cr4_smap = !!kvm_read_cr4_bits(vcpu, X86_CR4_SMAP); ext.cr4_pse = !!is_pse(vcpu); @@ -4794,7 +4801,6 @@ static union kvm_mmu_role kvm_calc_mmu_role_common(struct kvm_vcpu *vcpu, role.base.access = ACC_ALL; role.base.nxe = !!is_nx(vcpu); - role.base.cr4_pae = !!is_pae(vcpu); role.base.cr0_wp = is_write_protection(vcpu); role.base.smm = is_smm(vcpu); role.base.guest_mode = is_guest_mode(vcpu); @@ -4815,6 +4821,7 @@ kvm_calc_tdp_mmu_root_page_role(struct kvm_vcpu *vcpu, bool base_only) role.base.ad_disabled = (shadow_accessed_mask == 0); role.base.level = kvm_x86_ops->get_tdp_level(vcpu); role.base.direct = true; + role.base.gpte_is_8_bytes = true; return role; } @@ -4879,6 +4886,7 @@ kvm_calc_shadow_mmu_root_page_role(struct kvm_vcpu *vcpu, bool base_only) role.base.smap_andnot_wp = role.ext.cr4_smap && !is_write_protection(vcpu); role.base.direct = !is_paging(vcpu); + role.base.gpte_is_8_bytes = !!is_pae(vcpu); if (!is_long_mode(vcpu)) role.base.level = PT32E_ROOT_LEVEL; @@ -4918,18 +4926,26 @@ static union kvm_mmu_role kvm_calc_shadow_ept_root_page_role(struct kvm_vcpu *vcpu, bool accessed_dirty, bool execonly) { - union kvm_mmu_role role; + union kvm_mmu_role role = {0}; - /* Base role is inherited from root_mmu */ - role.base.word = vcpu->arch.root_mmu.mmu_role.base.word; - role.ext = kvm_calc_mmu_role_ext(vcpu); + /* SMM flag is inherited from root_mmu */ + role.base.smm = vcpu->arch.root_mmu.mmu_role.base.smm; role.base.level = PT64_ROOT_4LEVEL; + role.base.gpte_is_8_bytes = true; role.base.direct = false; role.base.ad_disabled = !accessed_dirty; role.base.guest_mode = true; role.base.access = ACC_ALL; + /* + * WP=1 and NOT_WP=1 is an impossible combination, use WP and the + * SMAP variation to denote shadow EPT entries. + */ + role.base.cr0_wp = true; + role.base.smap_andnot_wp = true; + + role.ext = kvm_calc_mmu_role_ext(vcpu); role.ext.execonly = execonly; return role; @@ -5179,7 +5195,7 @@ static bool detect_write_misaligned(struct kvm_mmu_page *sp, gpa_t gpa, gpa, bytes, sp->role.word); offset = offset_in_page(gpa); - pte_size = sp->role.cr4_pae ? 8 : 4; + pte_size = sp->role.gpte_is_8_bytes ? 8 : 4; /* * Sometimes, the OS only writes the last one bytes to update status @@ -5203,7 +5219,7 @@ static u64 *get_written_sptes(struct kvm_mmu_page *sp, gpa_t gpa, int *nspte) page_offset = offset_in_page(gpa); level = sp->role.level; *nspte = 1; - if (!sp->role.cr4_pae) { + if (!sp->role.gpte_is_8_bytes) { page_offset <<= 1; /* 32->64 */ /* * A 32-bit pde maps 4MB while the shadow pdes map @@ -5393,10 +5409,12 @@ emulate: * This can happen if a guest gets a page-fault on data access but the HW * table walker is not able to read the instruction page (e.g instruction * page is not present in memory). In those cases we simply restart the - * guest. + * guest, with the exception of AMD Erratum 1096 which is unrecoverable. */ - if (unlikely(insn && !insn_len)) - return 1; + if (unlikely(insn && !insn_len)) { + if (!kvm_x86_ops->need_emulation_on_page_fault(vcpu)) + return 1; + } er = x86_emulate_instruction(vcpu, cr2, emulation_type, insn, insn_len); @@ -5509,7 +5527,9 @@ slot_handle_level_range(struct kvm *kvm, struct kvm_memory_slot *memslot, if (need_resched() || spin_needbreak(&kvm->mmu_lock)) { if (flush && lock_flush_tlb) { - kvm_flush_remote_tlbs(kvm); + kvm_flush_remote_tlbs_with_address(kvm, + start_gfn, + iterator.gfn - start_gfn + 1); flush = false; } cond_resched_lock(&kvm->mmu_lock); @@ -5517,7 +5537,8 @@ slot_handle_level_range(struct kvm *kvm, struct kvm_memory_slot *memslot, } if (flush && lock_flush_tlb) { - kvm_flush_remote_tlbs(kvm); + kvm_flush_remote_tlbs_with_address(kvm, start_gfn, + end_gfn - start_gfn + 1); flush = false; } @@ -6011,10 +6032,10 @@ out: /* * Calculate mmu pages needed for kvm. */ -unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm) +unsigned long kvm_mmu_calculate_default_mmu_pages(struct kvm *kvm) { - unsigned int nr_mmu_pages; - unsigned int nr_pages = 0; + unsigned long nr_mmu_pages; + unsigned long nr_pages = 0; struct kvm_memslots *slots; struct kvm_memory_slot *memslot; int i; @@ -6027,8 +6048,7 @@ unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm) } nr_mmu_pages = nr_pages * KVM_PERMILLE_MMU_PAGES / 1000; - nr_mmu_pages = max(nr_mmu_pages, - (unsigned int) KVM_MIN_ALLOC_MMU_PAGES); + nr_mmu_pages = max(nr_mmu_pages, KVM_MIN_ALLOC_MMU_PAGES); return nr_mmu_pages; } diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index bbdc60f2fae8..54c2a377795b 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -64,7 +64,7 @@ bool kvm_can_do_async_pf(struct kvm_vcpu *vcpu); int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code, u64 fault_address, char *insn, int insn_len); -static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm) +static inline unsigned long kvm_mmu_available_pages(struct kvm *kvm) { if (kvm->arch.n_max_mmu_pages > kvm->arch.n_used_mmu_pages) return kvm->arch.n_max_mmu_pages - diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h index 9f6c855a0043..dd30dccd2ad5 100644 --- a/arch/x86/kvm/mmutrace.h +++ b/arch/x86/kvm/mmutrace.h @@ -29,10 +29,10 @@ \ role.word = __entry->role; \ \ - trace_seq_printf(p, "sp gfn %llx l%u%s q%u%s %s%s" \ + trace_seq_printf(p, "sp gfn %llx l%u %u-byte q%u%s %s%s" \ " %snxe %sad root %u %s%c", \ __entry->gfn, role.level, \ - role.cr4_pae ? " pae" : "", \ + role.gpte_is_8_bytes ? 8 : 4, \ role.quadrant, \ role.direct ? " direct" : "", \ access_str[role.access], \ diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index 58ead7db71a3..e39741997893 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -281,9 +281,13 @@ static int kvm_pmu_rdpmc_vmware(struct kvm_vcpu *vcpu, unsigned idx, u64 *data) int kvm_pmu_rdpmc(struct kvm_vcpu *vcpu, unsigned idx, u64 *data) { bool fast_mode = idx & (1u << 31); + struct kvm_pmu *pmu = vcpu_to_pmu(vcpu); struct kvm_pmc *pmc; u64 ctr_val; + if (!pmu->version) + return 1; + if (is_vmware_backdoor_pmc(idx)) return kvm_pmu_rdpmc_vmware(vcpu, idx, data); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index b5b128a0a051..406b558abfef 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -262,6 +262,7 @@ struct amd_svm_iommu_ir { }; #define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK (0xFF) +#define AVIC_LOGICAL_ID_ENTRY_VALID_BIT 31 #define AVIC_LOGICAL_ID_ENTRY_VALID_MASK (1 << 31) #define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK (0xFFULL) @@ -2692,6 +2693,7 @@ static int npf_interception(struct vcpu_svm *svm) static int db_interception(struct vcpu_svm *svm) { struct kvm_run *kvm_run = svm->vcpu.run; + struct kvm_vcpu *vcpu = &svm->vcpu; if (!(svm->vcpu.guest_debug & (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP)) && @@ -2702,6 +2704,8 @@ static int db_interception(struct vcpu_svm *svm) if (svm->nmi_singlestep) { disable_nmi_singlestep(svm); + /* Make sure we check for pending NMIs upon entry */ + kvm_make_request(KVM_REQ_EVENT, vcpu); } if (svm->vcpu.guest_debug & @@ -4517,14 +4521,25 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm) kvm_lapic_reg_write(apic, APIC_ICR, icrl); break; case AVIC_IPI_FAILURE_TARGET_NOT_RUNNING: { + int i; + struct kvm_vcpu *vcpu; + struct kvm *kvm = svm->vcpu.kvm; struct kvm_lapic *apic = svm->vcpu.arch.apic; /* - * Update ICR high and low, then emulate sending IPI, - * which is handled when writing APIC_ICR. + * At this point, we expect that the AVIC HW has already + * set the appropriate IRR bits on the valid target + * vcpus. So, we just need to kick the appropriate vcpu. */ - kvm_lapic_reg_write(apic, APIC_ICR2, icrh); - kvm_lapic_reg_write(apic, APIC_ICR, icrl); + kvm_for_each_vcpu(i, vcpu, kvm) { + bool m = kvm_apic_match_dest(vcpu, apic, + icrl & KVM_APIC_SHORT_MASK, + GET_APIC_DEST_FIELD(icrh), + icrl & KVM_APIC_DEST_MASK); + + if (m && !avic_vcpu_is_running(vcpu)) + kvm_vcpu_wake_up(vcpu); + } break; } case AVIC_IPI_FAILURE_INVALID_TARGET: @@ -4596,7 +4611,7 @@ static void avic_invalidate_logical_id_entry(struct kvm_vcpu *vcpu) u32 *entry = avic_get_logical_id_entry(vcpu, svm->ldr_reg, flat); if (entry) - WRITE_ONCE(*entry, (u32) ~AVIC_LOGICAL_ID_ENTRY_VALID_MASK); + clear_bit(AVIC_LOGICAL_ID_ENTRY_VALID_BIT, (unsigned long *)entry); } static int avic_handle_ldr_update(struct kvm_vcpu *vcpu) @@ -5621,6 +5636,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) svm->vmcb->save.cr2 = vcpu->arch.cr2; clgi(); + kvm_load_guest_xcr0(vcpu); /* * If this vCPU has touched SPEC_CTRL, restore the guest's value if @@ -5766,6 +5782,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) if (unlikely(svm->vmcb->control.exit_code == SVM_EXIT_NMI)) kvm_before_interrupt(&svm->vcpu); + kvm_put_guest_xcr0(vcpu); stgi(); /* Any pending NMI will happen here */ @@ -6215,32 +6232,24 @@ static int svm_pre_enter_smm(struct kvm_vcpu *vcpu, char *smstate) return 0; } -static int svm_pre_leave_smm(struct kvm_vcpu *vcpu, u64 smbase) +static int svm_pre_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) { struct vcpu_svm *svm = to_svm(vcpu); struct vmcb *nested_vmcb; struct page *page; - struct { - u64 guest; - u64 vmcb; - } svm_state_save; - int ret; + u64 guest; + u64 vmcb; - ret = kvm_vcpu_read_guest(vcpu, smbase + 0xfed8, &svm_state_save, - sizeof(svm_state_save)); - if (ret) - return ret; + guest = GET_SMSTATE(u64, smstate, 0x7ed8); + vmcb = GET_SMSTATE(u64, smstate, 0x7ee0); - if (svm_state_save.guest) { - vcpu->arch.hflags &= ~HF_SMM_MASK; - nested_vmcb = nested_svm_map(svm, svm_state_save.vmcb, &page); - if (nested_vmcb) - enter_svm_guest_mode(svm, svm_state_save.vmcb, nested_vmcb, page); - else - ret = 1; - vcpu->arch.hflags |= HF_SMM_MASK; + if (guest) { + nested_vmcb = nested_svm_map(svm, vmcb, &page); + if (!nested_vmcb) + return 1; + enter_svm_guest_mode(svm, vmcb, nested_vmcb, page); } - return ret; + return 0; } static int enable_smi_window(struct kvm_vcpu *vcpu) @@ -6422,11 +6431,11 @@ e_free: return ret; } -static int get_num_contig_pages(int idx, struct page **inpages, - unsigned long npages) +static unsigned long get_num_contig_pages(unsigned long idx, + struct page **inpages, unsigned long npages) { unsigned long paddr, next_paddr; - int i = idx + 1, pages = 1; + unsigned long i = idx + 1, pages = 1; /* find the number of contiguous pages starting from idx */ paddr = __sme_page_pa(inpages[idx]); @@ -6445,12 +6454,12 @@ static int get_num_contig_pages(int idx, struct page **inpages, static int sev_launch_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp) { - unsigned long vaddr, vaddr_end, next_vaddr, npages, size; + unsigned long vaddr, vaddr_end, next_vaddr, npages, pages, size, i; struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info; struct kvm_sev_launch_update_data params; struct sev_data_launch_update_data *data; struct page **inpages; - int i, ret, pages; + int ret; if (!sev_guest(kvm)) return -ENOTTY; @@ -6799,7 +6808,8 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec) struct page **src_p, **dst_p; struct kvm_sev_dbg debug; unsigned long n; - int ret, size; + unsigned int size; + int ret; if (!sev_guest(kvm)) return -ENOTTY; @@ -6807,6 +6817,11 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec) if (copy_from_user(&debug, (void __user *)(uintptr_t)argp->data, sizeof(debug))) return -EFAULT; + if (!debug.len || debug.src_uaddr + debug.len < debug.src_uaddr) + return -EINVAL; + if (!debug.dst_uaddr) + return -EINVAL; + vaddr = debug.src_uaddr; size = debug.len; vaddr_end = vaddr + size; @@ -6857,8 +6872,8 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec) dst_vaddr, len, &argp->error); - sev_unpin_memory(kvm, src_p, 1); - sev_unpin_memory(kvm, dst_p, 1); + sev_unpin_memory(kvm, src_p, n); + sev_unpin_memory(kvm, dst_p, n); if (ret) goto err; @@ -7098,6 +7113,36 @@ static int nested_enable_evmcs(struct kvm_vcpu *vcpu, return -ENODEV; } +static bool svm_need_emulation_on_page_fault(struct kvm_vcpu *vcpu) +{ + bool is_user, smap; + + is_user = svm_get_cpl(vcpu) == 3; + smap = !kvm_read_cr4_bits(vcpu, X86_CR4_SMAP); + + /* + * Detect and workaround Errata 1096 Fam_17h_00_0Fh + * + * In non SEV guest, hypervisor will be able to read the guest + * memory to decode the instruction pointer when insn_len is zero + * so we return true to indicate that decoding is possible. + * + * But in the SEV guest, the guest memory is encrypted with the + * guest specific key and hypervisor will not be able to decode the + * instruction pointer so we will not able to workaround it. Lets + * print the error and request to kill the guest. + */ + if (is_user && smap) { + if (!sev_guest(vcpu->kvm)) + return true; + + pr_err_ratelimited("KVM: Guest triggered AMD Erratum 1096\n"); + kvm_make_request(KVM_REQ_TRIPLE_FAULT, vcpu); + } + + return false; +} + static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .cpu_has_kvm_support = has_svm, .disabled_by_bios = is_disabled, @@ -7231,6 +7276,8 @@ static struct kvm_x86_ops svm_x86_ops __ro_after_init = { .nested_enable_evmcs = nested_enable_evmcs, .nested_get_evmcs_version = nested_get_evmcs_version, + + .need_emulation_on_page_fault = svm_need_emulation_on_page_fault, }; static int __init svm_init(void) diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index 6432d08c7de7..4d47a2631d1f 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -438,13 +438,13 @@ TRACE_EVENT(kvm_apic_ipi, ); TRACE_EVENT(kvm_apic_accept_irq, - TP_PROTO(__u32 apicid, __u16 dm, __u8 tm, __u8 vec), + TP_PROTO(__u32 apicid, __u16 dm, __u16 tm, __u8 vec), TP_ARGS(apicid, dm, tm, vec), TP_STRUCT__entry( __field( __u32, apicid ) __field( __u16, dm ) - __field( __u8, tm ) + __field( __u16, tm ) __field( __u8, vec ) ), diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index f24a2c225070..0c601d079cd2 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -500,6 +500,17 @@ static void nested_vmx_disable_intercept_for_msr(unsigned long *msr_bitmap_l1, } } +static inline void enable_x2apic_msr_intercepts(unsigned long *msr_bitmap) { + int msr; + + for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) { + unsigned word = msr / BITS_PER_LONG; + + msr_bitmap[word] = ~0; + msr_bitmap[word + (0x800 / sizeof(long))] = ~0; + } +} + /* * Merge L0's and L1's MSR bitmap, return false to indicate that * we do not use the hardware. @@ -541,39 +552,44 @@ static inline bool nested_vmx_prepare_msr_bitmap(struct kvm_vcpu *vcpu, return false; msr_bitmap_l1 = (unsigned long *)kmap(page); - if (nested_cpu_has_apic_reg_virt(vmcs12)) { - /* - * L0 need not intercept reads for MSRs between 0x800 and 0x8ff, it - * just lets the processor take the value from the virtual-APIC page; - * take those 256 bits directly from the L1 bitmap. - */ - for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) { - unsigned word = msr / BITS_PER_LONG; - msr_bitmap_l0[word] = msr_bitmap_l1[word]; - msr_bitmap_l0[word + (0x800 / sizeof(long))] = ~0; - } - } else { - for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) { - unsigned word = msr / BITS_PER_LONG; - msr_bitmap_l0[word] = ~0; - msr_bitmap_l0[word + (0x800 / sizeof(long))] = ~0; - } - } - nested_vmx_disable_intercept_for_msr( - msr_bitmap_l1, msr_bitmap_l0, - X2APIC_MSR(APIC_TASKPRI), - MSR_TYPE_W); + /* + * To keep the control flow simple, pay eight 8-byte writes (sixteen + * 4-byte writes on 32-bit systems) up front to enable intercepts for + * the x2APIC MSR range and selectively disable them below. + */ + enable_x2apic_msr_intercepts(msr_bitmap_l0); + + if (nested_cpu_has_virt_x2apic_mode(vmcs12)) { + if (nested_cpu_has_apic_reg_virt(vmcs12)) { + /* + * L0 need not intercept reads for MSRs between 0x800 + * and 0x8ff, it just lets the processor take the value + * from the virtual-APIC page; take those 256 bits + * directly from the L1 bitmap. + */ + for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) { + unsigned word = msr / BITS_PER_LONG; + + msr_bitmap_l0[word] = msr_bitmap_l1[word]; + } + } - if (nested_cpu_has_vid(vmcs12)) { - nested_vmx_disable_intercept_for_msr( - msr_bitmap_l1, msr_bitmap_l0, - X2APIC_MSR(APIC_EOI), - MSR_TYPE_W); nested_vmx_disable_intercept_for_msr( msr_bitmap_l1, msr_bitmap_l0, - X2APIC_MSR(APIC_SELF_IPI), - MSR_TYPE_W); + X2APIC_MSR(APIC_TASKPRI), + MSR_TYPE_R | MSR_TYPE_W); + + if (nested_cpu_has_vid(vmcs12)) { + nested_vmx_disable_intercept_for_msr( + msr_bitmap_l1, msr_bitmap_l0, + X2APIC_MSR(APIC_EOI), + MSR_TYPE_W); + nested_vmx_disable_intercept_for_msr( + msr_bitmap_l1, msr_bitmap_l0, + X2APIC_MSR(APIC_SELF_IPI), + MSR_TYPE_W); + } } if (spec_ctrl) @@ -2585,6 +2601,11 @@ static int nested_check_host_control_regs(struct kvm_vcpu *vcpu, !nested_host_cr4_valid(vcpu, vmcs12->host_cr4) || !nested_cr3_valid(vcpu, vmcs12->host_cr3)) return -EINVAL; + + if (is_noncanonical_address(vmcs12->host_ia32_sysenter_esp, vcpu) || + is_noncanonical_address(vmcs12->host_ia32_sysenter_eip, vcpu)) + return -EINVAL; + /* * If the load IA32_EFER VM-exit control is 1, bits reserved in the * IA32_EFER MSR must be 0 in the field for that register. In addition, @@ -2852,20 +2873,27 @@ static void nested_get_vmcs12_pages(struct kvm_vcpu *vcpu) /* * If translation failed, VM entry will fail because * prepare_vmcs02 set VIRTUAL_APIC_PAGE_ADDR to -1ull. - * Failing the vm entry is _not_ what the processor - * does but it's basically the only possibility we - * have. We could still enter the guest if CR8 load - * exits are enabled, CR8 store exits are enabled, and - * virtualize APIC access is disabled; in this case - * the processor would never use the TPR shadow and we - * could simply clear the bit from the execution - * control. But such a configuration is useless, so - * let's keep the code simple. */ if (!is_error_page(page)) { vmx->nested.virtual_apic_page = page; hpa = page_to_phys(vmx->nested.virtual_apic_page); vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, hpa); + } else if (nested_cpu_has(vmcs12, CPU_BASED_CR8_LOAD_EXITING) && + nested_cpu_has(vmcs12, CPU_BASED_CR8_STORE_EXITING) && + !nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES)) { + /* + * The processor will never use the TPR shadow, simply + * clear the bit from the execution control. Such a + * configuration is useless, but it happens in tests. + * For any other configuration, failing the vm entry is + * _not_ what the processor does but it's basically the + * only possibility we have. + */ + vmcs_clear_bits(CPU_BASED_VM_EXEC_CONTROL, + CPU_BASED_TPR_SHADOW); + } else { + printk("bad virtual-APIC page address\n"); + dump_vmcs(); } } @@ -3768,8 +3796,18 @@ static void nested_vmx_restore_host_state(struct kvm_vcpu *vcpu) vmx_set_cr4(vcpu, vmcs_readl(CR4_READ_SHADOW)); nested_ept_uninit_mmu_context(vcpu); - vcpu->arch.cr3 = vmcs_readl(GUEST_CR3); - __set_bit(VCPU_EXREG_CR3, (ulong *)&vcpu->arch.regs_avail); + + /* + * This is only valid if EPT is in use, otherwise the vmcs01 GUEST_CR3 + * points to shadow pages! Fortunately we only get here after a WARN_ON + * if EPT is disabled, so a VMabort is perfectly fine. + */ + if (enable_ept) { + vcpu->arch.cr3 = vmcs_readl(GUEST_CR3); + __set_bit(VCPU_EXREG_CR3, (ulong *)&vcpu->arch.regs_avail); + } else { + nested_vmx_abort(vcpu, VMX_ABORT_VMCS_CORRUPTED); + } /* * Use ept_save_pdptrs(vcpu) to load the MMU's cached PDPTRs @@ -5385,7 +5423,7 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu, return ret; /* Empty 'VMXON' state is permitted */ - if (kvm_state->size < sizeof(kvm_state) + sizeof(*vmcs12)) + if (kvm_state->size < sizeof(*kvm_state) + sizeof(*vmcs12)) return 0; if (kvm_state->vmx.vmcs_pa != -1ull) { @@ -5429,7 +5467,7 @@ static int vmx_set_nested_state(struct kvm_vcpu *vcpu, vmcs12->vmcs_link_pointer != -1ull) { struct vmcs12 *shadow_vmcs12 = get_shadow_vmcs12(vcpu); - if (kvm_state->size < sizeof(kvm_state) + 2 * sizeof(*vmcs12)) + if (kvm_state->size < sizeof(*kvm_state) + 2 * sizeof(*vmcs12)) return -EINVAL; if (copy_from_user(shadow_vmcs12, @@ -5717,6 +5755,14 @@ __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *)) { int i; + /* + * Without EPT it is not possible to restore L1's CR3 and PDPTR on + * VMfail, because they are not available in vmcs01. Just always + * use hardware checks. + */ + if (!enable_ept) + nested_early_check = 1; + if (!cpu_has_vmx_shadow_vmcs()) enable_shadow_vmcs = 0; if (enable_shadow_vmcs) { diff --git a/arch/x86/kvm/vmx/vmenter.S b/arch/x86/kvm/vmx/vmenter.S index 7b272738c576..d4cb1945b2e3 100644 --- a/arch/x86/kvm/vmx/vmenter.S +++ b/arch/x86/kvm/vmx/vmenter.S @@ -3,6 +3,7 @@ #include <asm/asm.h> #include <asm/bitsperlong.h> #include <asm/kvm_vcpu_regs.h> +#include <asm/nospec-branch.h> #define WORD_SIZE (BITS_PER_LONG / 8) @@ -77,6 +78,17 @@ ENDPROC(vmx_vmenter) * referred to by VMCS.HOST_RIP. */ ENTRY(vmx_vmexit) +#ifdef CONFIG_RETPOLINE + ALTERNATIVE "jmp .Lvmexit_skip_rsb", "", X86_FEATURE_RETPOLINE + /* Preserve guest's RAX, it's used to stuff the RSB. */ + push %_ASM_AX + + /* IMPORTANT: Stuff the RSB immediately after VM-Exit, before RET! */ + FILL_RETURN_BUFFER %_ASM_AX, RSB_CLEAR_LOOPS, X86_FEATURE_RETPOLINE + + pop %_ASM_AX +.Lvmexit_skip_rsb: +#endif ret ENDPROC(vmx_vmexit) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index c73375e01ab8..0c955bb286ff 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1683,12 +1683,6 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) msr_info->data = to_vmx(vcpu)->spec_ctrl; break; - case MSR_IA32_ARCH_CAPABILITIES: - if (!msr_info->host_initiated && - !guest_cpuid_has(vcpu, X86_FEATURE_ARCH_CAPABILITIES)) - return 1; - msr_info->data = to_vmx(vcpu)->arch_capabilities; - break; case MSR_IA32_SYSENTER_CS: msr_info->data = vmcs_read32(GUEST_SYSENTER_CS); break; @@ -1895,11 +1889,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap, MSR_IA32_PRED_CMD, MSR_TYPE_W); break; - case MSR_IA32_ARCH_CAPABILITIES: - if (!msr_info->host_initiated) - return 1; - vmx->arch_capabilities = data; - break; case MSR_IA32_CR_PAT: if (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PAT) { if (!kvm_mtrr_valid(vcpu, MSR_IA32_CR_PAT, data)) @@ -4088,8 +4077,6 @@ static void vmx_vcpu_setup(struct vcpu_vmx *vmx) ++vmx->nmsrs; } - vmx->arch_capabilities = kvm_get_arch_capabilities(); - vm_exit_controls_init(vmx, vmx_vmexit_ctrl()); /* 22.2.1, 20.8.1 */ @@ -5616,7 +5603,7 @@ static void vmx_dump_dtsel(char *name, uint32_t limit) vmcs_readl(limit + GUEST_GDTR_BASE - GUEST_GDTR_LIMIT)); } -static void dump_vmcs(void) +void dump_vmcs(void) { u32 vmentry_ctl = vmcs_read32(VM_ENTRY_CONTROLS); u32 vmexit_ctl = vmcs_read32(VM_EXIT_CONTROLS); @@ -6423,6 +6410,8 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu) if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) vmx_set_interrupt_shadow(vcpu, 0); + kvm_load_guest_xcr0(vcpu); + if (static_cpu_has(X86_FEATURE_PKU) && kvm_read_cr4_bits(vcpu, X86_CR4_PKE) && vcpu->arch.pkru != vmx->host_pkru) @@ -6473,9 +6462,6 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu) x86_spec_ctrl_restore_host(vmx->spec_ctrl, 0); - /* Eliminate branch target predictions from guest mode */ - vmexit_fill_RSB(); - /* All fields are clean at this point */ if (static_branch_unlikely(&enable_evmcs)) current_evmcs->hv_clean_fields |= @@ -6519,6 +6505,8 @@ static void vmx_vcpu_run(struct kvm_vcpu *vcpu) __write_pkru(vmx->host_pkru); } + kvm_put_guest_xcr0(vcpu); + vmx->nested.nested_run_pending = 0; vmx->idt_vectoring_info = 0; @@ -6865,6 +6853,30 @@ static void nested_vmx_entry_exit_ctls_update(struct kvm_vcpu *vcpu) } } +static bool guest_cpuid_has_pmu(struct kvm_vcpu *vcpu) +{ + struct kvm_cpuid_entry2 *entry; + union cpuid10_eax eax; + + entry = kvm_find_cpuid_entry(vcpu, 0xa, 0); + if (!entry) + return false; + + eax.full = entry->eax; + return (eax.split.version_id > 0); +} + +static void nested_vmx_procbased_ctls_update(struct kvm_vcpu *vcpu) +{ + struct vcpu_vmx *vmx = to_vmx(vcpu); + bool pmu_enabled = guest_cpuid_has_pmu(vcpu); + + if (pmu_enabled) + vmx->nested.msrs.procbased_ctls_high |= CPU_BASED_RDPMC_EXITING; + else + vmx->nested.msrs.procbased_ctls_high &= ~CPU_BASED_RDPMC_EXITING; +} + static void update_intel_pt_cfg(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); @@ -6953,6 +6965,7 @@ static void vmx_cpuid_update(struct kvm_vcpu *vcpu) if (nested_vmx_allowed(vcpu)) { nested_vmx_cr_fixed1_bits_update(vcpu); nested_vmx_entry_exit_ctls_update(vcpu); + nested_vmx_procbased_ctls_update(vcpu); } if (boot_cpu_has(X86_FEATURE_INTEL_PT) && @@ -7016,6 +7029,7 @@ static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc) { struct vcpu_vmx *vmx; u64 tscl, guest_tscl, delta_tsc, lapic_timer_advance_cycles; + struct kvm_timer *ktimer = &vcpu->arch.apic->lapic_timer; if (kvm_mwait_in_guest(vcpu->kvm)) return -EOPNOTSUPP; @@ -7024,7 +7038,8 @@ static int vmx_set_hv_timer(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc) tscl = rdtsc(); guest_tscl = kvm_read_l1_tsc(vcpu, tscl); delta_tsc = max(guest_deadline_tsc, guest_tscl) - guest_tscl; - lapic_timer_advance_cycles = nsec_to_cycles(vcpu, lapic_timer_advance_ns); + lapic_timer_advance_cycles = nsec_to_cycles(vcpu, + ktimer->timer_advance_ns); if (delta_tsc > lapic_timer_advance_cycles) delta_tsc -= lapic_timer_advance_cycles; @@ -7382,7 +7397,7 @@ static int vmx_pre_enter_smm(struct kvm_vcpu *vcpu, char *smstate) return 0; } -static int vmx_pre_leave_smm(struct kvm_vcpu *vcpu, u64 smbase) +static int vmx_pre_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) { struct vcpu_vmx *vmx = to_vmx(vcpu); int ret; @@ -7393,9 +7408,7 @@ static int vmx_pre_leave_smm(struct kvm_vcpu *vcpu, u64 smbase) } if (vmx->nested.smm.guest_mode) { - vcpu->arch.hflags &= ~HF_SMM_MASK; ret = nested_vmx_enter_non_root_mode(vcpu, false); - vcpu->arch.hflags |= HF_SMM_MASK; if (ret) return ret; @@ -7409,6 +7422,11 @@ static int enable_smi_window(struct kvm_vcpu *vcpu) return 0; } +static bool vmx_need_emulation_on_page_fault(struct kvm_vcpu *vcpu) +{ + return 0; +} + static __init int hardware_setup(void) { unsigned long host_bndcfgs; @@ -7711,6 +7729,7 @@ static struct kvm_x86_ops vmx_x86_ops __ro_after_init = { .set_nested_state = NULL, .get_vmcs12_pages = NULL, .nested_enable_evmcs = NULL, + .need_emulation_on_page_fault = vmx_need_emulation_on_page_fault, }; static void vmx_cleanup_l1d_flush(void) diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 1554cb45b393..f879529906b4 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -190,7 +190,6 @@ struct vcpu_vmx { u64 msr_guest_kernel_gs_base; #endif - u64 arch_capabilities; u64 spec_ctrl; u32 vm_entry_controls_shadow; @@ -518,4 +517,6 @@ static inline void decache_tsc_multiplier(struct vcpu_vmx *vmx) vmcs_write64(TSC_MULTIPLIER, vmx->current_tsc_ratio); } +void dump_vmcs(void); + #endif /* __KVM_X86_VMX_H */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 65e4559eef2f..b5edc8e3ce1d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -136,10 +136,14 @@ EXPORT_SYMBOL_GPL(kvm_default_tsc_scaling_ratio); static u32 __read_mostly tsc_tolerance_ppm = 250; module_param(tsc_tolerance_ppm, uint, S_IRUGO | S_IWUSR); -/* lapic timer advance (tscdeadline mode only) in nanoseconds */ -unsigned int __read_mostly lapic_timer_advance_ns = 1000; +/* + * lapic timer advance (tscdeadline mode only) in nanoseconds. '-1' enables + * adaptive tuning starting from default advancment of 1000ns. '0' disables + * advancement entirely. Any other value is used as-is and disables adaptive + * tuning, i.e. allows priveleged userspace to set an exact advancement time. + */ +static int __read_mostly lapic_timer_advance_ns = -1; module_param(lapic_timer_advance_ns, uint, S_IRUGO | S_IWUSR); -EXPORT_SYMBOL_GPL(lapic_timer_advance_ns); static bool __read_mostly vector_hashing = true; module_param(vector_hashing, bool, S_IRUGO); @@ -800,7 +804,7 @@ void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw) } EXPORT_SYMBOL_GPL(kvm_lmsw); -static void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu) +void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu) { if (kvm_read_cr4_bits(vcpu, X86_CR4_OSXSAVE) && !vcpu->guest_xcr0_loaded) { @@ -810,8 +814,9 @@ static void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu) vcpu->guest_xcr0_loaded = 1; } } +EXPORT_SYMBOL_GPL(kvm_load_guest_xcr0); -static void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu) +void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu) { if (vcpu->guest_xcr0_loaded) { if (vcpu->arch.xcr0 != host_xcr0) @@ -819,6 +824,7 @@ static void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu) vcpu->guest_xcr0_loaded = 0; } } +EXPORT_SYMBOL_GPL(kvm_put_guest_xcr0); static int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr) { @@ -1125,7 +1131,7 @@ static u32 msrs_to_save[] = { #endif MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA, MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX, - MSR_IA32_SPEC_CTRL, MSR_IA32_ARCH_CAPABILITIES, + MSR_IA32_SPEC_CTRL, MSR_IA32_RTIT_CTL, MSR_IA32_RTIT_STATUS, MSR_IA32_RTIT_CR3_MATCH, MSR_IA32_RTIT_OUTPUT_BASE, MSR_IA32_RTIT_OUTPUT_MASK, MSR_IA32_RTIT_ADDR0_A, MSR_IA32_RTIT_ADDR0_B, @@ -1158,6 +1164,7 @@ static u32 emulated_msrs[] = { MSR_IA32_TSC_ADJUST, MSR_IA32_TSCDEADLINE, + MSR_IA32_ARCH_CAPABILITIES, MSR_IA32_MISC_ENABLE, MSR_IA32_MCG_STATUS, MSR_IA32_MCG_CTL, @@ -2443,6 +2450,11 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) if (msr_info->host_initiated) vcpu->arch.microcode_version = data; break; + case MSR_IA32_ARCH_CAPABILITIES: + if (!msr_info->host_initiated) + return 1; + vcpu->arch.arch_capabilities = data; + break; case MSR_EFER: return set_efer(vcpu, data); case MSR_K7_HWCR: @@ -2747,6 +2759,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_IA32_UCODE_REV: msr_info->data = vcpu->arch.microcode_version; break; + case MSR_IA32_ARCH_CAPABILITIES: + if (!msr_info->host_initiated && + !guest_cpuid_has(vcpu, X86_FEATURE_ARCH_CAPABILITIES)) + return 1; + msr_info->data = vcpu->arch.arch_capabilities; + break; case MSR_IA32_TSC: msr_info->data = kvm_scale_tsc(vcpu, rdtsc()) + vcpu->arch.tsc_offset; break; @@ -3081,7 +3099,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) break; case KVM_CAP_NESTED_STATE: r = kvm_x86_ops->get_nested_state ? - kvm_x86_ops->get_nested_state(NULL, 0, 0) : 0; + kvm_x86_ops->get_nested_state(NULL, NULL, 0) : 0; break; default: break; @@ -3516,7 +3534,7 @@ static void kvm_vcpu_ioctl_x86_get_vcpu_events(struct kvm_vcpu *vcpu, memset(&events->reserved, 0, sizeof(events->reserved)); } -static void kvm_set_hflags(struct kvm_vcpu *vcpu, unsigned emul_flags); +static void kvm_smm_changed(struct kvm_vcpu *vcpu); static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu, struct kvm_vcpu_events *events) @@ -3576,12 +3594,13 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu, vcpu->arch.apic->sipi_vector = events->sipi_vector; if (events->flags & KVM_VCPUEVENT_VALID_SMM) { - u32 hflags = vcpu->arch.hflags; - if (events->smi.smm) - hflags |= HF_SMM_MASK; - else - hflags &= ~HF_SMM_MASK; - kvm_set_hflags(vcpu, hflags); + if (!!(vcpu->arch.hflags & HF_SMM_MASK) != events->smi.smm) { + if (events->smi.smm) + vcpu->arch.hflags |= HF_SMM_MASK; + else + vcpu->arch.hflags &= ~HF_SMM_MASK; + kvm_smm_changed(vcpu); + } vcpu->arch.smi_pending = events->smi.pending; @@ -4258,7 +4277,7 @@ static int kvm_vm_ioctl_set_identity_map_addr(struct kvm *kvm, } static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm, - u32 kvm_nr_mmu_pages) + unsigned long kvm_nr_mmu_pages) { if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES) return -EINVAL; @@ -4272,7 +4291,7 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm, return 0; } -static int kvm_vm_ioctl_get_nr_mmu_pages(struct kvm *kvm) +static unsigned long kvm_vm_ioctl_get_nr_mmu_pages(struct kvm *kvm) { return kvm->arch.n_max_mmu_pages; } @@ -5946,12 +5965,18 @@ static unsigned emulator_get_hflags(struct x86_emulate_ctxt *ctxt) static void emulator_set_hflags(struct x86_emulate_ctxt *ctxt, unsigned emul_flags) { - kvm_set_hflags(emul_to_vcpu(ctxt), emul_flags); + emul_to_vcpu(ctxt)->arch.hflags = emul_flags; } -static int emulator_pre_leave_smm(struct x86_emulate_ctxt *ctxt, u64 smbase) +static int emulator_pre_leave_smm(struct x86_emulate_ctxt *ctxt, + const char *smstate) { - return kvm_x86_ops->pre_leave_smm(emul_to_vcpu(ctxt), smbase); + return kvm_x86_ops->pre_leave_smm(emul_to_vcpu(ctxt), smstate); +} + +static void emulator_post_leave_smm(struct x86_emulate_ctxt *ctxt) +{ + kvm_smm_changed(emul_to_vcpu(ctxt)); } static const struct x86_emulate_ops emulate_ops = { @@ -5994,6 +6019,7 @@ static const struct x86_emulate_ops emulate_ops = { .get_hflags = emulator_get_hflags, .set_hflags = emulator_set_hflags, .pre_leave_smm = emulator_pre_leave_smm, + .post_leave_smm = emulator_post_leave_smm, }; static void toggle_interruptibility(struct kvm_vcpu *vcpu, u32 mask) @@ -6235,16 +6261,6 @@ static void kvm_smm_changed(struct kvm_vcpu *vcpu) kvm_mmu_reset_context(vcpu); } -static void kvm_set_hflags(struct kvm_vcpu *vcpu, unsigned emul_flags) -{ - unsigned changed = vcpu->arch.hflags ^ emul_flags; - - vcpu->arch.hflags = emul_flags; - - if (changed & HF_SMM_MASK) - kvm_smm_changed(vcpu); -} - static int kvm_vcpu_check_hw_bp(unsigned long addr, u32 type, u32 dr7, unsigned long *db) { @@ -6523,15 +6539,45 @@ int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu, } EXPORT_SYMBOL_GPL(kvm_emulate_instruction_from_buffer); +static int complete_fast_pio_out_port_0x7e(struct kvm_vcpu *vcpu) +{ + vcpu->arch.pio.count = 0; + return 1; +} + +static int complete_fast_pio_out(struct kvm_vcpu *vcpu) +{ + vcpu->arch.pio.count = 0; + + if (unlikely(!kvm_is_linear_rip(vcpu, vcpu->arch.pio.linear_rip))) + return 1; + + return kvm_skip_emulated_instruction(vcpu); +} + static int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port) { unsigned long val = kvm_register_read(vcpu, VCPU_REGS_RAX); int ret = emulator_pio_out_emulated(&vcpu->arch.emulate_ctxt, size, port, &val, 1); - /* do not return to emulator after return from userspace */ - vcpu->arch.pio.count = 0; - return ret; + if (ret) + return ret; + + /* + * Workaround userspace that relies on old KVM behavior of %rip being + * incremented prior to exiting to userspace to handle "OUT 0x7e". + */ + if (port == 0x7e && + kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_OUT_7E_INC_RIP)) { + vcpu->arch.complete_userspace_io = + complete_fast_pio_out_port_0x7e; + kvm_skip_emulated_instruction(vcpu); + } else { + vcpu->arch.pio.linear_rip = kvm_get_linear_rip(vcpu); + vcpu->arch.complete_userspace_io = complete_fast_pio_out; + } + return 0; } static int complete_fast_pio_in(struct kvm_vcpu *vcpu) @@ -6541,6 +6587,11 @@ static int complete_fast_pio_in(struct kvm_vcpu *vcpu) /* We should only ever be called with arch.pio.count equal to 1 */ BUG_ON(vcpu->arch.pio.count != 1); + if (unlikely(!kvm_is_linear_rip(vcpu, vcpu->arch.pio.linear_rip))) { + vcpu->arch.pio.count = 0; + return 1; + } + /* For size less than 4 we merge, else we zero extend */ val = (vcpu->arch.pio.size < 4) ? kvm_register_read(vcpu, VCPU_REGS_RAX) : 0; @@ -6553,7 +6604,7 @@ static int complete_fast_pio_in(struct kvm_vcpu *vcpu) vcpu->arch.pio.port, &val, 1); kvm_register_write(vcpu, VCPU_REGS_RAX, val); - return 1; + return kvm_skip_emulated_instruction(vcpu); } static int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, @@ -6572,6 +6623,7 @@ static int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, return ret; } + vcpu->arch.pio.linear_rip = kvm_get_linear_rip(vcpu); vcpu->arch.complete_userspace_io = complete_fast_pio_in; return 0; @@ -6579,16 +6631,13 @@ static int kvm_fast_pio_in(struct kvm_vcpu *vcpu, int size, int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in) { - int ret = kvm_skip_emulated_instruction(vcpu); + int ret; - /* - * TODO: we might be squashing a KVM_GUESTDBG_SINGLESTEP-triggered - * KVM_EXIT_DEBUG here. - */ if (in) - return kvm_fast_pio_in(vcpu, size, port) && ret; + ret = kvm_fast_pio_in(vcpu, size, port); else - return kvm_fast_pio_out(vcpu, size, port) && ret; + ret = kvm_fast_pio_out(vcpu, size, port); + return ret && kvm_skip_emulated_instruction(vcpu); } EXPORT_SYMBOL_GPL(kvm_fast_pio); @@ -7413,9 +7462,9 @@ static void enter_smm_save_state_32(struct kvm_vcpu *vcpu, char *buf) put_smstate(u32, buf, 0x7ef8, vcpu->arch.smbase); } +#ifdef CONFIG_X86_64 static void enter_smm_save_state_64(struct kvm_vcpu *vcpu, char *buf) { -#ifdef CONFIG_X86_64 struct desc_ptr dt; struct kvm_segment seg; unsigned long val; @@ -7465,10 +7514,8 @@ static void enter_smm_save_state_64(struct kvm_vcpu *vcpu, char *buf) for (i = 0; i < 6; i++) enter_smm_save_seg_64(vcpu, buf, i); -#else - WARN_ON_ONCE(1); -#endif } +#endif static void enter_smm(struct kvm_vcpu *vcpu) { @@ -7479,9 +7526,11 @@ static void enter_smm(struct kvm_vcpu *vcpu) trace_kvm_enter_smm(vcpu->vcpu_id, vcpu->arch.smbase, true); memset(buf, 0, 512); +#ifdef CONFIG_X86_64 if (guest_cpuid_has(vcpu, X86_FEATURE_LM)) enter_smm_save_state_64(vcpu, buf); else +#endif enter_smm_save_state_32(vcpu, buf); /* @@ -7539,8 +7588,10 @@ static void enter_smm(struct kvm_vcpu *vcpu) kvm_set_segment(vcpu, &ds, VCPU_SREG_GS); kvm_set_segment(vcpu, &ds, VCPU_SREG_SS); +#ifdef CONFIG_X86_64 if (guest_cpuid_has(vcpu, X86_FEATURE_LM)) kvm_x86_ops->set_efer(vcpu, 0); +#endif kvm_update_cpuid(vcpu); kvm_mmu_reset_context(vcpu); @@ -7837,15 +7888,14 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) goto cancel_injection; } - kvm_load_guest_xcr0(vcpu); - if (req_immediate_exit) { kvm_make_request(KVM_REQ_EVENT, vcpu); kvm_x86_ops->request_immediate_exit(vcpu); } trace_kvm_entry(vcpu->vcpu_id); - if (lapic_timer_advance_ns) + if (lapic_in_kernel(vcpu) && + vcpu->arch.apic->lapic_timer.timer_advance_ns) wait_lapic_expire(vcpu); guest_enter_irqoff(); @@ -7891,8 +7941,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu) vcpu->mode = OUTSIDE_GUEST_MODE; smp_wmb(); - kvm_put_guest_xcr0(vcpu); - kvm_before_interrupt(vcpu); kvm_x86_ops->handle_external_intr(vcpu); kvm_after_interrupt(vcpu); @@ -8733,6 +8781,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { + vcpu->arch.arch_capabilities = kvm_get_arch_capabilities(); vcpu->arch.msr_platform_info = MSR_PLATFORM_INFO_CPUID_FAULT; kvm_vcpu_mtrr_init(vcpu); vcpu_load(vcpu); @@ -9034,7 +9083,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) if (irqchip_in_kernel(vcpu->kvm)) { vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv(vcpu); - r = kvm_create_lapic(vcpu); + r = kvm_create_lapic(vcpu, lapic_timer_advance_ns); if (r < 0) goto fail_mmu_destroy; } else @@ -9429,13 +9478,9 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, const struct kvm_memory_slot *new, enum kvm_mr_change change) { - int nr_mmu_pages = 0; - if (!kvm->arch.n_requested_mmu_pages) - nr_mmu_pages = kvm_mmu_calculate_mmu_pages(kvm); - - if (nr_mmu_pages) - kvm_mmu_change_mmu_pages(kvm, nr_mmu_pages); + kvm_mmu_change_mmu_pages(kvm, + kvm_mmu_calculate_default_mmu_pages(kvm)); /* * Dirty logging tracks sptes in 4k granularity, meaning that large diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 28406aa1136d..534d3f28bb01 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -294,8 +294,6 @@ extern u64 kvm_supported_xcr0(void); extern unsigned int min_timer_period_us; -extern unsigned int lapic_timer_advance_ns; - extern bool enable_vmware_backdoor; extern struct static_key kvm_no_apic_vcpu; @@ -347,4 +345,6 @@ static inline void kvm_after_interrupt(struct kvm_vcpu *vcpu) __this_cpu_write(current_vcpu, NULL); } +void kvm_load_guest_xcr0(struct kvm_vcpu *vcpu); +void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu); #endif diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 140e61843a07..5246db42de45 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -6,6 +6,18 @@ # Produces uninteresting flaky coverage. KCOV_INSTRUMENT_delay.o := n +# Early boot use of cmdline; don't instrument it +ifdef CONFIG_AMD_MEM_ENCRYPT +KCOV_INSTRUMENT_cmdline.o := n +KASAN_SANITIZE_cmdline.o := n + +ifdef CONFIG_FUNCTION_TRACER +CFLAGS_REMOVE_cmdline.o = -pg +endif + +CFLAGS_cmdline.o := $(call cc-option, -fno-stack-protector) +endif + inat_tables_script = $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk inat_tables_maps = $(srctree)/arch/x86/lib/x86-opcode-map.txt quiet_cmd_inat_tables = GEN $@ @@ -23,7 +35,6 @@ obj-$(CONFIG_SMP) += msr-smp.o cache-smp.o lib-y := delay.o misc.o cmdline.o cpu.o lib-y += usercopy_$(BITS).o usercopy.o getuser.o putuser.o lib-y += memcpy_$(BITS).o -lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o insn-eval.o lib-$(CONFIG_RANDOMIZE_BASE) += kaslr.o lib-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S index db4e5aa0858b..b2f1822084ae 100644 --- a/arch/x86/lib/copy_user_64.S +++ b/arch/x86/lib/copy_user_64.S @@ -16,6 +16,30 @@ #include <asm/smap.h> #include <asm/export.h> +.macro ALIGN_DESTINATION + /* check for bad alignment of destination */ + movl %edi,%ecx + andl $7,%ecx + jz 102f /* already aligned */ + subl $8,%ecx + negl %ecx + subl %ecx,%edx +100: movb (%rsi),%al +101: movb %al,(%rdi) + incq %rsi + incq %rdi + decl %ecx + jnz 100b +102: + .section .fixup,"ax" +103: addl %ecx,%edx /* ecx is zerorest also */ + jmp copy_user_handle_tail + .previous + + _ASM_EXTABLE_UA(100b, 103b) + _ASM_EXTABLE_UA(101b, 103b) + .endm + /* * copy_user_generic_unrolled - memory copy with exception handling. * This version is for CPUs like P4 that don't have efficient micro @@ -194,6 +218,30 @@ ENDPROC(copy_user_enhanced_fast_string) EXPORT_SYMBOL(copy_user_enhanced_fast_string) /* + * Try to copy last bytes and clear the rest if needed. + * Since protection fault in copy_from/to_user is not a normal situation, + * it is not necessary to optimize tail handling. + * + * Input: + * rdi destination + * rsi source + * rdx count + * + * Output: + * eax uncopied bytes or 0 if successful. + */ +ALIGN; +copy_user_handle_tail: + movl %edx,%ecx +1: rep movsb +2: mov %ecx,%eax + ASM_CLAC + ret + + _ASM_EXTABLE_UA(1b, 2b) +ENDPROC(copy_user_handle_tail) + +/* * copy_user_nocache - Uncached memory copy with exception handling * This will force destination out of cache for more performance. * diff --git a/arch/x86/lib/csum-partial_64.c b/arch/x86/lib/csum-partial_64.c index 9baca3e054be..e7925d668b68 100644 --- a/arch/x86/lib/csum-partial_64.c +++ b/arch/x86/lib/csum-partial_64.c @@ -94,7 +94,7 @@ static unsigned do_csum(const unsigned char *buff, unsigned len) : "m" (*(unsigned long *)buff), "r" (zero), "0" (result)); --count; - buff += 8; + buff += 8; } result = add32_with_carry(result>>32, result&0xffffffff); diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c index 3cdf06128d13..be5b5fb1598b 100644 --- a/arch/x86/lib/error-inject.c +++ b/arch/x86/lib/error-inject.c @@ -6,6 +6,7 @@ asmlinkage void just_return_func(void); asm( + ".text\n" ".type just_return_func, @function\n" ".globl just_return_func\n" "just_return_func:\n" diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S index 3b24dc05251c..9d05572370ed 100644 --- a/arch/x86/lib/memcpy_64.S +++ b/arch/x86/lib/memcpy_64.S @@ -257,6 +257,7 @@ ENTRY(__memcpy_mcsafe) /* Copy successful. Return zero */ .L_done_memcpy_trap: xorl %eax, %eax +.L_done: ret ENDPROC(__memcpy_mcsafe) EXPORT_SYMBOL_GPL(__memcpy_mcsafe) @@ -273,7 +274,7 @@ EXPORT_SYMBOL_GPL(__memcpy_mcsafe) addl %edx, %ecx .E_trailing_bytes: mov %ecx, %eax - ret + jmp .L_done /* * For write fault handling, given the destination is unaligned, diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S deleted file mode 100644 index dc2ab6ea6768..000000000000 --- a/arch/x86/lib/rwsem.S +++ /dev/null @@ -1,156 +0,0 @@ -/* - * x86 semaphore implementation. - * - * (C) Copyright 1999 Linus Torvalds - * - * Portions Copyright 1999 Red Hat, Inc. - * - * 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. - * - * rw semaphores implemented November 1999 by Benjamin LaHaise <bcrl@kvack.org> - */ - -#include <linux/linkage.h> -#include <asm/alternative-asm.h> -#include <asm/frame.h> - -#define __ASM_HALF_REG(reg) __ASM_SEL(reg, e##reg) -#define __ASM_HALF_SIZE(inst) __ASM_SEL(inst##w, inst##l) - -#ifdef CONFIG_X86_32 - -/* - * The semaphore operations have a special calling sequence that - * allow us to do a simpler in-line version of them. These routines - * need to convert that sequence back into the C sequence when - * there is contention on the semaphore. - * - * %eax contains the semaphore pointer on entry. Save the C-clobbered - * registers (%eax, %edx and %ecx) except %eax which is either a return - * value or just gets clobbered. Same is true for %edx so make sure GCC - * reloads it after the slow path, by making it hold a temporary, for - * example see ____down_write(). - */ - -#define save_common_regs \ - pushl %ecx - -#define restore_common_regs \ - popl %ecx - - /* Avoid uglifying the argument copying x86-64 needs to do. */ - .macro movq src, dst - .endm - -#else - -/* - * x86-64 rwsem wrappers - * - * This interfaces the inline asm code to the slow-path - * C routines. We need to save the call-clobbered regs - * that the asm does not mark as clobbered, and move the - * argument from %rax to %rdi. - * - * NOTE! We don't need to save %rax, because the functions - * will always return the semaphore pointer in %rax (which - * is also the input argument to these helpers) - * - * The following can clobber %rdx because the asm clobbers it: - * call_rwsem_down_write_failed - * call_rwsem_wake - * but %rdi, %rsi, %rcx, %r8-r11 always need saving. - */ - -#define save_common_regs \ - pushq %rdi; \ - pushq %rsi; \ - pushq %rcx; \ - pushq %r8; \ - pushq %r9; \ - pushq %r10; \ - pushq %r11 - -#define restore_common_regs \ - popq %r11; \ - popq %r10; \ - popq %r9; \ - popq %r8; \ - popq %rcx; \ - popq %rsi; \ - popq %rdi - -#endif - -/* Fix up special calling conventions */ -ENTRY(call_rwsem_down_read_failed) - FRAME_BEGIN - save_common_regs - __ASM_SIZE(push,) %__ASM_REG(dx) - movq %rax,%rdi - call rwsem_down_read_failed - __ASM_SIZE(pop,) %__ASM_REG(dx) - restore_common_regs - FRAME_END - ret -ENDPROC(call_rwsem_down_read_failed) - -ENTRY(call_rwsem_down_read_failed_killable) - FRAME_BEGIN - save_common_regs - __ASM_SIZE(push,) %__ASM_REG(dx) - movq %rax,%rdi - call rwsem_down_read_failed_killable - __ASM_SIZE(pop,) %__ASM_REG(dx) - restore_common_regs - FRAME_END - ret -ENDPROC(call_rwsem_down_read_failed_killable) - -ENTRY(call_rwsem_down_write_failed) - FRAME_BEGIN - save_common_regs - movq %rax,%rdi - call rwsem_down_write_failed - restore_common_regs - FRAME_END - ret -ENDPROC(call_rwsem_down_write_failed) - -ENTRY(call_rwsem_down_write_failed_killable) - FRAME_BEGIN - save_common_regs - movq %rax,%rdi - call rwsem_down_write_failed_killable - restore_common_regs - FRAME_END - ret -ENDPROC(call_rwsem_down_write_failed_killable) - -ENTRY(call_rwsem_wake) - FRAME_BEGIN - /* do nothing if still outstanding active readers */ - __ASM_HALF_SIZE(dec) %__ASM_HALF_REG(dx) - jnz 1f - save_common_regs - movq %rax,%rdi - call rwsem_wake - restore_common_regs -1: FRAME_END - ret -ENDPROC(call_rwsem_wake) - -ENTRY(call_rwsem_downgrade_wake) - FRAME_BEGIN - save_common_regs - __ASM_SIZE(push,) %__ASM_REG(dx) - movq %rax,%rdi - call rwsem_downgrade_wake - __ASM_SIZE(pop,) %__ASM_REG(dx) - restore_common_regs - FRAME_END - ret -ENDPROC(call_rwsem_downgrade_wake) diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index ee42bb0cbeb3..9952a01cad24 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -55,26 +55,6 @@ unsigned long clear_user(void __user *to, unsigned long n) EXPORT_SYMBOL(clear_user); /* - * Try to copy last bytes and clear the rest if needed. - * Since protection fault in copy_from/to_user is not a normal situation, - * it is not necessary to optimize tail handling. - */ -__visible unsigned long -copy_user_handle_tail(char *to, char *from, unsigned len) -{ - for (; len; --len, to++) { - char c; - - if (__get_user_nocheck(c, from++, sizeof(char))) - break; - if (__put_user_nocheck(c, to, sizeof(char))) - break; - } - clac(); - return len; -} - -/* * Similar to copy_user_handle_tail, probe for the write fault point, * but reuse __memcpy_mcsafe in case a new read error is encountered. * clac() is handled in _copy_to_iter_mcsafe(). diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index ee8f8ab46941..6a7302d1161f 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -259,7 +259,8 @@ static void note_wx(struct pg_state *st) #endif /* Account the WX pages */ st->wx_pages += npages; - WARN_ONCE(1, "x86/mm: Found insecure W+X mapping at address %pS\n", + WARN_ONCE(__supported_pte_mask & _PAGE_NX, + "x86/mm: Found insecure W+X mapping at address %pS\n", (void *)st->start_address); } @@ -577,7 +578,7 @@ void ptdump_walk_pgd_level(struct seq_file *m, pgd_t *pgd) void ptdump_walk_pgd_level_debugfs(struct seq_file *m, pgd_t *pgd, bool user) { #ifdef CONFIG_PAGE_TABLE_ISOLATION - if (user && static_cpu_has(X86_FEATURE_PTI)) + if (user && boot_cpu_has(X86_FEATURE_PTI)) pgd = kernel_to_user_pgdp(pgd); #endif ptdump_walk_pgd_level_core(m, pgd, false, false); @@ -590,7 +591,7 @@ void ptdump_walk_user_pgd_level_checkwx(void) pgd_t *pgd = INIT_PGD; if (!(__supported_pte_mask & _PAGE_NX) || - !static_cpu_has(X86_FEATURE_PTI)) + !boot_cpu_has(X86_FEATURE_PTI)) return; pr_info("x86/mm: Checking user space page tables\n"); diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index f905a2371080..8dacdb96899e 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -5,6 +5,7 @@ #include <linux/memblock.h> #include <linux/swapfile.h> #include <linux/swapops.h> +#include <linux/kmemleak.h> #include <asm/set_memory.h> #include <asm/e820/api.h> @@ -766,6 +767,11 @@ void free_init_pages(const char *what, unsigned long begin, unsigned long end) if (debug_pagealloc_enabled()) { pr_info("debug: unmapping init [mem %#010lx-%#010lx]\n", begin, end - 1); + /* + * Inform kmemleak about the hole in the memory since the + * corresponding pages will be unmapped. + */ + kmemleak_free_part((void *)begin, end - begin); set_memory_np(begin, (end - begin) >> PAGE_SHIFT); } else { /* diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 0029604af8a4..dd73d5d74393 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -825,7 +825,7 @@ void __init __early_set_fixmap(enum fixed_addresses idx, pte = early_ioremap_pte(addr); /* Sanitize 'prot' against any unsupported bits: */ - pgprot_val(flags) &= __default_kernel_pte_mask; + pgprot_val(flags) &= __supported_pte_mask; if (pgprot_val(flags)) set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags)); diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c index 3f452ffed7e9..d669c5e797e0 100644 --- a/arch/x86/mm/kaslr.c +++ b/arch/x86/mm/kaslr.c @@ -94,7 +94,7 @@ void __init kernel_randomize_memory(void) if (!kaslr_memory_enabled()) return; - kaslr_regions[0].size_tb = 1 << (__PHYSICAL_MASK_SHIFT - TB_SHIFT); + kaslr_regions[0].size_tb = 1 << (MAX_PHYSMEM_BITS - TB_SHIFT); kaslr_regions[1].size_tb = VMALLOC_SIZE_TB; /* diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index db3165714521..dc726e07d8ba 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -230,7 +230,7 @@ bool mmap_address_hint_valid(unsigned long addr, unsigned long len) /* Can we access it for direct reading/writing? Must be RAM: */ int valid_phys_addr_range(phys_addr_t addr, size_t count) { - return addr + count <= __pa(high_memory); + return addr + count - 1 <= __pa(high_memory - 1); } /* Can we access it through mmap? Must be a valid physical address: */ diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 7bd01709a091..3dbf440d4114 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -190,7 +190,7 @@ static void pgd_dtor(pgd_t *pgd) * when PTI is enabled. We need them to map the per-process LDT into the * user-space page-table. */ -#define PREALLOCATED_USER_PMDS (static_cpu_has(X86_FEATURE_PTI) ? \ +#define PREALLOCATED_USER_PMDS (boot_cpu_has(X86_FEATURE_PTI) ? \ KERNEL_PGD_PTRS : 0) #define MAX_PREALLOCATED_USER_PMDS KERNEL_PGD_PTRS @@ -292,7 +292,7 @@ static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) #ifdef CONFIG_PAGE_TABLE_ISOLATION - if (!static_cpu_has(X86_FEATURE_PTI)) + if (!boot_cpu_has(X86_FEATURE_PTI)) return; pgdp = kernel_to_user_pgdp(pgdp); diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 4fee5c3003ed..9c2463bc158f 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -35,6 +35,7 @@ #include <linux/spinlock.h> #include <linux/mm.h> #include <linux/uaccess.h> +#include <linux/cpu.h> #include <asm/cpufeature.h> #include <asm/hypervisor.h> @@ -77,7 +78,7 @@ static void __init pti_print_if_secure(const char *reason) pr_info("%s\n", reason); } -enum pti_mode { +static enum pti_mode { PTI_AUTO = 0, PTI_FORCE_OFF, PTI_FORCE_ON @@ -115,7 +116,8 @@ void __init pti_check_boottime_disable(void) } } - if (cmdline_find_option_bool(boot_command_line, "nopti")) { + if (cmdline_find_option_bool(boot_command_line, "nopti") || + cpu_mitigations_off()) { pti_mode = PTI_FORCE_OFF; pti_print_if_insecure("disabled on command line."); return; @@ -602,7 +604,7 @@ static void pti_clone_kernel_text(void) set_memory_global(start, (end_global - start) >> PAGE_SHIFT); } -void pti_set_kernel_image_nonglobal(void) +static void pti_set_kernel_image_nonglobal(void) { /* * The identity map is created with PMDs, regardless of the @@ -626,7 +628,7 @@ void pti_set_kernel_image_nonglobal(void) */ void __init pti_init(void) { - if (!static_cpu_has(X86_FEATURE_PTI)) + if (!boot_cpu_has(X86_FEATURE_PTI)) return; pr_info("enabled\n"); diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c index bc4bc7b2f075..487b8474c01c 100644 --- a/arch/x86/mm/tlb.c +++ b/arch/x86/mm/tlb.c @@ -728,7 +728,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, { int cpu; - struct flush_tlb_info info __aligned(SMP_CACHE_BYTES) = { + struct flush_tlb_info info = { .mm = mm, .stride_shift = stride_shift, .freed_tables = freed_tables, diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c index 458a0e2bcc57..a25a9fd987a9 100644 --- a/arch/x86/platform/efi/quirks.c +++ b/arch/x86/platform/efi/quirks.c @@ -449,7 +449,7 @@ void __init efi_free_boot_services(void) */ rm_size = real_mode_size_needed(); if (rm_size && (start + rm_size) < (1<<20) && size >= rm_size) { - set_real_mode_mem(start, rm_size); + set_real_mode_mem(start); start += rm_size; size -= rm_size; } diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 2c53b0f19329..1297e185b8c8 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -2133,14 +2133,19 @@ static int __init summarize_uvhub_sockets(int nuvhubs, */ static int __init init_per_cpu(int nuvhubs, int base_part_pnode) { - unsigned char *uvhub_mask; struct uvhub_desc *uvhub_descs; + unsigned char *uvhub_mask = NULL; if (is_uv3_hub() || is_uv2_hub() || is_uv1_hub()) timeout_us = calculate_destination_timeout(); uvhub_descs = kcalloc(nuvhubs, sizeof(struct uvhub_desc), GFP_KERNEL); + if (!uvhub_descs) + goto fail; + uvhub_mask = kzalloc((nuvhubs+7)/8, GFP_KERNEL); + if (!uvhub_mask) + goto fail; if (get_cpu_topology(base_part_pnode, uvhub_descs, uvhub_mask)) goto fail; diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c index d10105825d57..7dce39c8c034 100644 --- a/arch/x86/realmode/init.c +++ b/arch/x86/realmode/init.c @@ -15,15 +15,6 @@ u32 *trampoline_cr4_features; /* Hold the pgd entry used on booting additional CPUs */ pgd_t trampoline_pgd_entry; -void __init set_real_mode_mem(phys_addr_t mem, size_t size) -{ - void *base = __va(mem); - - real_mode_header = (struct real_mode_header *) base; - printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n", - base, (unsigned long long)mem, size); -} - void __init reserve_real_mode(void) { phys_addr_t mem; @@ -42,7 +33,7 @@ void __init reserve_real_mode(void) } memblock_reserve(mem, size); - set_real_mode_mem(mem, size); + set_real_mode_mem(mem); } static void __init setup_real_mode(void) diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index b629f6992d9f..f345586f5e50 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -11,7 +11,9 @@ #define Elf_Shdr ElfW(Shdr) #define Elf_Sym ElfW(Sym) -static Elf_Ehdr ehdr; +static Elf_Ehdr ehdr; +static unsigned long shnum; +static unsigned int shstrndx; struct relocs { uint32_t *offset; @@ -241,9 +243,9 @@ static const char *sec_name(unsigned shndx) { const char *sec_strtab; const char *name; - sec_strtab = secs[ehdr.e_shstrndx].strtab; + sec_strtab = secs[shstrndx].strtab; name = "<noname>"; - if (shndx < ehdr.e_shnum) { + if (shndx < shnum) { name = sec_strtab + secs[shndx].shdr.sh_name; } else if (shndx == SHN_ABS) { @@ -271,7 +273,7 @@ static const char *sym_name(const char *sym_strtab, Elf_Sym *sym) static Elf_Sym *sym_lookup(const char *symname) { int i; - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; long nsyms; char *strtab; @@ -366,27 +368,41 @@ static void read_ehdr(FILE *fp) ehdr.e_shnum = elf_half_to_cpu(ehdr.e_shnum); ehdr.e_shstrndx = elf_half_to_cpu(ehdr.e_shstrndx); - if ((ehdr.e_type != ET_EXEC) && (ehdr.e_type != ET_DYN)) { + shnum = ehdr.e_shnum; + shstrndx = ehdr.e_shstrndx; + + if ((ehdr.e_type != ET_EXEC) && (ehdr.e_type != ET_DYN)) die("Unsupported ELF header type\n"); - } - if (ehdr.e_machine != ELF_MACHINE) { + if (ehdr.e_machine != ELF_MACHINE) die("Not for %s\n", ELF_MACHINE_NAME); - } - if (ehdr.e_version != EV_CURRENT) { + if (ehdr.e_version != EV_CURRENT) die("Unknown ELF version\n"); - } - if (ehdr.e_ehsize != sizeof(Elf_Ehdr)) { + if (ehdr.e_ehsize != sizeof(Elf_Ehdr)) die("Bad Elf header size\n"); - } - if (ehdr.e_phentsize != sizeof(Elf_Phdr)) { + if (ehdr.e_phentsize != sizeof(Elf_Phdr)) die("Bad program header entry\n"); - } - if (ehdr.e_shentsize != sizeof(Elf_Shdr)) { + if (ehdr.e_shentsize != sizeof(Elf_Shdr)) die("Bad section header entry\n"); + + + if (shnum == SHN_UNDEF || shstrndx == SHN_XINDEX) { + Elf_Shdr shdr; + + if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) + die("Seek to %d failed: %s\n", ehdr.e_shoff, strerror(errno)); + + if (fread(&shdr, sizeof(shdr), 1, fp) != 1) + die("Cannot read initial ELF section header: %s\n", strerror(errno)); + + if (shnum == SHN_UNDEF) + shnum = elf_xword_to_cpu(shdr.sh_size); + + if (shstrndx == SHN_XINDEX) + shstrndx = elf_word_to_cpu(shdr.sh_link); } - if (ehdr.e_shstrndx >= ehdr.e_shnum) { + + if (shstrndx >= shnum) die("String table index out of bounds\n"); - } } static void read_shdrs(FILE *fp) @@ -394,20 +410,20 @@ static void read_shdrs(FILE *fp) int i; Elf_Shdr shdr; - secs = calloc(ehdr.e_shnum, sizeof(struct section)); + secs = calloc(shnum, sizeof(struct section)); if (!secs) { die("Unable to allocate %d section headers\n", - ehdr.e_shnum); + shnum); } if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) { die("Seek to %d failed: %s\n", ehdr.e_shoff, strerror(errno)); } - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; if (fread(&shdr, sizeof(shdr), 1, fp) != 1) die("Cannot read ELF section headers %d/%d: %s\n", - i, ehdr.e_shnum, strerror(errno)); + i, shnum, strerror(errno)); sec->shdr.sh_name = elf_word_to_cpu(shdr.sh_name); sec->shdr.sh_type = elf_word_to_cpu(shdr.sh_type); sec->shdr.sh_flags = elf_xword_to_cpu(shdr.sh_flags); @@ -418,7 +434,7 @@ static void read_shdrs(FILE *fp) sec->shdr.sh_info = elf_word_to_cpu(shdr.sh_info); sec->shdr.sh_addralign = elf_xword_to_cpu(shdr.sh_addralign); sec->shdr.sh_entsize = elf_xword_to_cpu(shdr.sh_entsize); - if (sec->shdr.sh_link < ehdr.e_shnum) + if (sec->shdr.sh_link < shnum) sec->link = &secs[sec->shdr.sh_link]; } @@ -427,7 +443,7 @@ static void read_shdrs(FILE *fp) static void read_strtabs(FILE *fp) { int i; - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; if (sec->shdr.sh_type != SHT_STRTAB) { continue; @@ -452,7 +468,7 @@ static void read_strtabs(FILE *fp) static void read_symtabs(FILE *fp) { int i,j; - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; if (sec->shdr.sh_type != SHT_SYMTAB) { continue; @@ -485,7 +501,7 @@ static void read_symtabs(FILE *fp) static void read_relocs(FILE *fp) { int i,j; - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; if (sec->shdr.sh_type != SHT_REL_TYPE) { continue; @@ -528,7 +544,7 @@ static void print_absolute_symbols(void) printf("Absolute symbols\n"); printf(" Num: Value Size Type Bind Visibility Name\n"); - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; char *sym_strtab; int j; @@ -566,7 +582,7 @@ static void print_absolute_relocs(void) else format = "%08"PRIx32" %08"PRIx32" %10s %08"PRIx32" %s\n"; - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { struct section *sec = &secs[i]; struct section *sec_applies, *sec_symtab; char *sym_strtab; @@ -650,7 +666,7 @@ static void walk_relocs(int (*process)(struct section *sec, Elf_Rel *rel, { int i; /* Walk through the relocations */ - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { char *sym_strtab; Elf_Sym *sh_symtab; struct section *sec_applies, *sec_symtab; @@ -706,7 +722,7 @@ static Elf_Addr per_cpu_load_addr; static void percpu_init(void) { int i; - for (i = 0; i < ehdr.e_shnum; i++) { + for (i = 0; i < shnum; i++) { ElfW(Sym) *sym; if (strcmp(sec_name(i), ".data..percpu")) continue; diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig index a9e80e44178c..a8985e1f7432 100644 --- a/arch/x86/um/Kconfig +++ b/arch/x86/um/Kconfig @@ -32,12 +32,6 @@ config ARCH_DEFCONFIG default "arch/um/configs/i386_defconfig" if X86_32 default "arch/um/configs/x86_64_defconfig" if X86_64 -config RWSEM_XCHGADD_ALGORITHM - def_bool 64BIT - -config RWSEM_GENERIC_SPINLOCK - def_bool !RWSEM_XCHGADD_ALGORITHM - config 3_LEVEL_PGTABLES bool "Three-level pagetables" if !64BIT default 64BIT diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile index 2d686ae54681..33c51c064c77 100644 --- a/arch/x86/um/Makefile +++ b/arch/x86/um/Makefile @@ -21,14 +21,12 @@ obj-y += checksum_32.o syscalls_32.o obj-$(CONFIG_ELF_CORE) += elfcore.o subarch-y = ../lib/string_32.o ../lib/atomic64_32.o ../lib/atomic64_cx8_32.o -subarch-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += ../lib/rwsem.o else obj-y += syscalls_64.o vdso/ -subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o ../entry/thunk_64.o \ - ../lib/rwsem.o +subarch-y = ../lib/csum-partial_64.o ../lib/memcpy_64.o ../entry/thunk_64.o endif diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile index bf94060fc06f..0caddd6acb22 100644 --- a/arch/x86/um/vdso/Makefile +++ b/arch/x86/um/vdso/Makefile @@ -62,7 +62,7 @@ quiet_cmd_vdso = VDSO $@ -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' -VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) +VDSO_LDFLAGS = -fPIC -shared -Wl,--hash-style=sysv GCOV_PROFILE := n # diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 4b9aafe766c5..35c8d91e6106 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -46,9 +46,6 @@ config XTENSA with reasonable minimum requirements. The Xtensa Linux project has a home page at <http://www.linux-xtensa.org/>. -config RWSEM_XCHGADD_ALGORITHM - def_bool y - config GENERIC_HWEIGHT def_bool y diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild index 42b6cb3d16f7..4148090cafb0 100644 --- a/arch/xtensa/include/asm/Kbuild +++ b/arch/xtensa/include/asm/Kbuild @@ -15,6 +15,7 @@ generic-y += irq_work.h generic-y += kdebug.h generic-y += kmap_types.h generic-y += kprobes.h +generic-y += kvm_para.h generic-y += local.h generic-y += local64.h generic-y += mcs_spinlock.h @@ -24,7 +25,6 @@ generic-y += percpu.h generic-y += preempt.h generic-y += qrwlock.h generic-y += qspinlock.h -generic-y += rwsem.h generic-y += sections.h generic-y += socket.h generic-y += topology.h diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index f7dd895b2353..0c14018d1c26 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -187,15 +187,18 @@ struct thread_struct { /* Clearing a0 terminates the backtrace. */ #define start_thread(regs, new_pc, new_sp) \ - memset(regs, 0, sizeof(*regs)); \ - regs->pc = new_pc; \ - regs->ps = USER_PS_VALUE; \ - regs->areg[1] = new_sp; \ - regs->areg[0] = 0; \ - regs->wmask = 1; \ - regs->depc = 0; \ - regs->windowbase = 0; \ - regs->windowstart = 1; + do { \ + memset((regs), 0, sizeof(*(regs))); \ + (regs)->pc = (new_pc); \ + (regs)->ps = USER_PS_VALUE; \ + (regs)->areg[1] = (new_sp); \ + (regs)->areg[0] = 0; \ + (regs)->wmask = 1; \ + (regs)->depc = 0; \ + (regs)->windowbase = 0; \ + (regs)->windowstart = 1; \ + (regs)->syscall = NO_SYSCALL; \ + } while (0) /* Forward declaration */ struct task_struct; diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h index a168bf81c7f4..91dc06d58060 100644 --- a/arch/xtensa/include/asm/syscall.h +++ b/arch/xtensa/include/asm/syscall.h @@ -59,45 +59,24 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS; - unsigned int j; + unsigned int i; - if (n == 0) - return; - - WARN_ON_ONCE(i + n > SYSCALL_MAX_ARGS); - - for (j = 0; j < n; ++j) { - if (i + j < SYSCALL_MAX_ARGS) - args[j] = regs->areg[reg[i + j]]; - else - args[j] = 0; - } + for (i = 0; i < 6; ++i) + args[i] = regs->areg[reg[i]]; } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS; - unsigned int j; - - if (n == 0) - return; - - if (WARN_ON_ONCE(i + n > SYSCALL_MAX_ARGS)) { - if (i < SYSCALL_MAX_ARGS) - n = SYSCALL_MAX_ARGS - i; - else - return; - } + unsigned int i; - for (j = 0; j < n; ++j) - regs->areg[reg[i + j]] = args[j]; + for (i = 0; i < 6; ++i) + regs->areg[reg[i]] = args[i]; } asmlinkage long xtensa_rt_sigreturn(struct pt_regs*); diff --git a/arch/xtensa/include/asm/tlb.h b/arch/xtensa/include/asm/tlb.h index 0d766f9c1083..50889935138a 100644 --- a/arch/xtensa/include/asm/tlb.h +++ b/arch/xtensa/include/asm/tlb.h @@ -14,32 +14,6 @@ #include <asm/cache.h> #include <asm/page.h> -#if (DCACHE_WAY_SIZE <= PAGE_SIZE) - -/* Note, read http://lkml.org/lkml/2004/1/15/6 */ - -# define tlb_start_vma(tlb,vma) do { } while (0) -# define tlb_end_vma(tlb,vma) do { } while (0) - -#else - -# define tlb_start_vma(tlb, vma) \ - do { \ - if (!tlb->fullmm) \ - flush_cache_range(vma, vma->vm_start, vma->vm_end); \ - } while(0) - -# define tlb_end_vma(tlb, vma) \ - do { \ - if (!tlb->fullmm) \ - flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ - } while(0) - -#endif - -#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/xtensa/include/uapi/asm/Kbuild b/arch/xtensa/include/uapi/asm/Kbuild index 8a7ad40be463..7417847dc438 100644 --- a/arch/xtensa/include/uapi/asm/Kbuild +++ b/arch/xtensa/include/uapi/asm/Kbuild @@ -1,2 +1 @@ generated-y += unistd_32.h -generic-y += kvm_para.h diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index e50f5124dc6f..e54af8b7e0f8 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -1860,6 +1860,8 @@ ENTRY(system_call) l32i a7, a2, PT_SYSCALL 1: + s32i a7, a1, 4 + /* syscall = sys_call_table[syscall_nr] */ movi a4, sys_call_table @@ -1893,8 +1895,12 @@ ENTRY(system_call) retw 1: + l32i a4, a1, 4 + l32i a3, a2, PT_SYSCALL + s32i a4, a2, PT_SYSCALL mov a6, a2 call4 do_syscall_trace_leave + s32i a3, a2, PT_SYSCALL retw ENDPROC(system_call) diff --git a/arch/xtensa/kernel/stacktrace.c b/arch/xtensa/kernel/stacktrace.c index 174c11f13bba..b9f82510c650 100644 --- a/arch/xtensa/kernel/stacktrace.c +++ b/arch/xtensa/kernel/stacktrace.c @@ -253,10 +253,14 @@ static int return_address_cb(struct stackframe *frame, void *data) return 1; } +/* + * level == 0 is for the return address from the caller of this function, + * not from this function itself. + */ unsigned long return_address(unsigned level) { struct return_addr_data r = { - .skip = level + 1, + .skip = level, }; walk_stackframe(stack_pointer(NULL), return_address_cb, &r); return r.addr; diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl index 6af49929de85..30084eaf8422 100644 --- a/arch/xtensa/kernel/syscalls/syscall.tbl +++ b/arch/xtensa/kernel/syscalls/syscall.tbl @@ -394,3 +394,7 @@ 421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait 422 common futex_time64 sys_futex 423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c index 2fb7d1172228..03678c4afc39 100644 --- a/arch/xtensa/mm/mmu.c +++ b/arch/xtensa/mm/mmu.c @@ -33,7 +33,7 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages) pte = memblock_alloc_low(n_pages * sizeof(pte_t), PAGE_SIZE); if (!pte) - panic("%s: Failed to allocate %zu bytes align=%lx\n", + panic("%s: Failed to allocate %lu bytes align=%lx\n", __func__, n_pages * sizeof(pte_t), PAGE_SIZE); for (i = 0; i < n_pages; ++i) |