summaryrefslogtreecommitdiff
path: root/arch/mips
AgeCommit message (Collapse)Author
2013-06-13MIPS: Fixup check for invalid scratch registerJayachandran C
The invalid value for scratch register is -1, so update the checks of the form (scratch_reg > 0) to be (scratch_reg >= 0). This will fix the case in Netlogic XLP where the scratch_reg can be 0. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5444/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Allow platform specific scratch registersJayachandran C
XLR/XLP COP0 scratch is register 22, sel 0-7. Add a function c0_kscratch() which returns the scratch register for the platform, and use the return value while generating TLB handlers. Setup kscratch_mask to 0xf for XLR/XLP since the config4 register does not exist. This allows the kernel to allocate scratch registers 0-3 if needed. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5445/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Fix plat_irq_dispatchJayachandran C
Fix an issue in plat_irq_dispatch due to which it can call do_IRQ with a PIC irq that is not mapped. When a per-cpu interrupt and a PIC interrupt are both active, the check 'eirr & PERCPU_IRQ_MASK' will be true, but the interrupt in 'i' will be the number of the PIC interrupt. In this case, we will call do_IRQ on the PIC interrupt without mapping it with nlm_irq_to_xirq(). Fix this by using __ffs64 instead of __ilog2_u64 and using the interrupt number instead of mask to identify per-cpu interrupts. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5432/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Remove workarounds for early SoCsJayachandran C
The XLPs in production do not need these workarounds. Remove the code and the associated ifdef. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5430/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Fixup memory regions for prefetchJayachandran C
Fix a cache error found in stress test, caused by the prefetch instruction going beyond valid memory when acessing the last page of a region. Add the pref_backup logic similar to XLR in XLP too. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5431/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: wait for all hardware threadsJayachandran C
Earlier we just waited for the first thread of the CPU to come online before proceeding to wake up others. Update it to wait for all the CPUs in the core. This will be useful when the boot-up is slow, like while debugging or when running in a simulator. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5429/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Fix sign extension in PIC writeJayachandran C
This does not cause a problem yet, but we do not want to write 1 to reserved bits. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5424/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: use branch instead of jumpJayachandran C
Fix an issue in the reset code. Since this code is copied to the reset vector, using 'j' for looping is not correct. Use relative branch 'b'. Update the usage of 'j' in smpboot.S to be consistent although it is not a bug there. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5427/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: move cpu_ready array to boot areaJayachandran C
Move the nlm_cpu_ready[] array used by the cpu wakeup code to the boot area, along with rest of the boot parameter code. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5425/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Add nlm_get_boot_data() helperJayachandran C
This moves the calculation and casting needed to access the CPU initialization data to a function nlm_get_boot_data() Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5426/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Initialization when !CONFIG_SMPJayachandran C
The core initialization and reset vector setup needs to be done even when booting uniprocessor. Move this code from smp.c to setup.c Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5428/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Split reset code out of smpboot.SJayachandran C
The reset and core initialization code should be available for uniprocessor as well. This changes is just to take out the code into a different file, without any change to the logic. The change for uniprocessor initialization code is in a later patch. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5423/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Split XLP device tree code to dt.cJayachandran C
Create new flle arch/mips/netlogic/xlp/dt.c and move the device tree related code there. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5422/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Support compressed kernelJayachandran C
Add SYS_SUPPORTS_ZBOOT and SYS_SUPPORTS_ZBOOT_UART16550 config options for XLR and XLP. Update boot/compressed/uart-16550.c to add UART port for XLR and XLP. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5417/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: boot: Fixes for compressed/uart-16550.cJayachandran C
Fix uart-16550.c for adding XLR/XLP support, changes are: * Make register read/write use volatile pointers * Support 32 bit IO read/write * Increase timeout in waiting for UART LSR Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5416/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: COP2 save/restore codeJayachandran C
Add COP2 register state structure and functions for Netlogic XLP. The RX and TX buffers and status registers are to be saved. Since the registers are 64-bit, do the implementation in inline assembly which works on both 32-bit and 64-bit kernels. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5413/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: rename nlm_cop2_save/restoreJayachandran C
Rename macro nlm_cop2_enable() to nlm_cop2_enable_irqsave() and the macro nlm_cop2_restore to nlm_cop2_disable_irqrestore(). The new names will reflect the functionality better, and will make nlm_cop2_restore() available to be used later in COP2 save/restore patch. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5412/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Fix nlm_read_c2_status() definitionJayachandran C
The sel argument os nlm_read_c2_status() was not used and the macro returned the sel 0 in all cases. Fix this by defining two macros: nlm_read_c2_status0() and nlm_read_c2_status1() to return the two status registers. Add functions to write to the status registers as well. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5414/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Allow kernel to use coprocessor 2Jayachandran C
Kernel threads should be able to use COP2 if the platform needs it. Do not call die_if_kernel() for a coprocessor unusable exception if the exception due to COP2 usage. Instead, the default notifier for COP2 exceptions is updated to call die_if_kernel. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5415/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Move cop2 save/restore to switch_to()Jayachandran C
Move the common code for saving and restoring platform specific COP2 registers to switch_to(). This will make supporting new platforms (like Netlogic XLP) easier. The platform specific COP2 definitions are to be specified in asm/processor.h and in asm/cop2.h. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5411/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: SWIOTLB dma ops for 32-bit DMAGanesan Ramalingam
Add SWIOTLB config option and related files to Netlogic platform. Some XLP SoC components like the SD/MMC interface cannot do DMA beyond 32-bit physical address. The SD/MMC driver can use memory outside this range for IO, to support this we have to add bounce buffers implemented by SWIOTLB. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: Ganesan Ramalingam <ganesanr@broadcom.com> Patchwork: https://patchwork.linux-mips.org/patch/5410/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Support SWIOTLB in default dma operationsJayachandran C
Provide a default implementation of phys_to_dma and dma_to_phys in mach-generic/dma_coherence.h. If CONFIG_NEED_SG_DMA_LENGTH is defined, the dma_length field in struct scatterlist is used. Set this up in mips_dma_map_sg so that the default mips DMA ops can be used when SWIOTLB is enabled. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5409/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Kconfig: Remove extranous help keyword.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Kconfig: Move ZONE_DMA to a more appropriate place.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: <uapi/asm/fcntl.h>: Don't reference CONFIG_* symbols.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Kconfig: Remove extranous help keyword.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-12Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: "Resurrect Alchemy platforms by invoking the WAIT instructions with interrupts enabled. This still leaves the race condition between testing TIF_NEED_RESCHED and the WAIT instruction for Alchemy platforms which need a different fix than other MIPS platforms. But at least it gets MIPS platforms flying again. There are also fixes for two build errors (CONFIG_FTRACE=y with CONFIG_DYNAMIC_FTRACE=n) and CONFIG_VIRTUALIZATION without CONFIG_KVM" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: ftrace: Add missing CONFIG_DYNAMIC_FTRACE MIPS: include: mmu_context.h: Replace VIRTUALIZATION with KVM MIPS: Alchemy: fix wait function
2013-06-11Merge branch 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm bugfixes from Gleb Natapov: "There is one more fix for MIPS KVM ABI here, MIPS and PPC build breakage fixes and a couple of PPC bug fixes" * 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm/ppc/booke64: Fix lazy ee handling in kvmppc_handle_exit() kvm/ppc/booke: Hold srcu lock when calling gfn functions kvm/ppc/booke64: Disable e6500 support kvm/ppc/booke64: Fix AltiVec interrupt numbers and build breakage mips/kvm: Use KVM_REG_MIPS and proper size indicators for *_ONE_REG kvm: Add definition of KVM_REG_MIPS KVM: add kvm_para_available to asm-generic/kvm_para.h
2013-06-11MIPS: kernel: mcount.S: Drop FRAME_POINTER codepathMarkos Chandras
CONFIG_FRAME_POINTER is not selectable for MIPS so this codepath was never executed. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5440/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-11mips/kvm: Use KVM_REG_MIPS and proper size indicators for *_ONE_REGDavid Daney
The API requires that the GET_ONE_REG and SET_ONE_REG ioctls have this extra information encoded in the register identifiers. Signed-off-by: David Daney <david.daney@cavium.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2013-06-10bcm63xx_enet: add support for Broadcom BCM63xx integrated gigabit switchMaxime Bizon
Newer Broadcom BCM63xx SoCs: 6328, 6362 and 6368 have an integrated switch which needs to be driven slightly differently from the traditional external switches. This patch introduces changes in arch/mips/bcm63xx in order to: - register a bcm63xx_enetsw driver instead of bcm63xx_enet driver - update DMA channels configuration & state RAM base addresses - add a new platform data configuration knob to define the number of ports per switch/device and force link on some ports - define the required switch registers On the driver side, the following changes are required: - the switch ports need to be polled to ensure the link is up and running and RX/TX can properly work - basic switch configuration needs to be performed for the switch to forward packets to the CPU - update the MIB counters since the integrated Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-10bcm63xx_enet: split DMA channel register accessesMaxime Bizon
The current bcm63xx_enet driver always uses bcmenet_shared_base whenever it needs to access DMA channel configuration space or access the DMA channel state RAM. Split these register in 3 parts to be more accurate: - global DMA configuration - per DMA channel configuration space - per DMA channel state RAM space This is preliminary to support new chips where the global DMA configuration remains the same, but there is a varying number of DMA channels located at a different memory offset. Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-10MIPS: ftrace: Add missing CONFIG_DYNAMIC_FTRACEMarkos Chandras
arch_ftrace_update_code and ftrace_modify_all_code are only available if CONFIG_DYNAMIC_FTRACE is selected. Fixes the following build problem on MIPS randconfig: arch/mips/kernel/ftrace.c: In function 'arch_ftrace_update_code': arch/mips/kernel/ftrace.c:31:2: error: implicit declaration of function 'ftrace_modify_all_code' [-Werror=implicit-function-declaration] Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5435/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: include: mmu_context.h: Replace VIRTUALIZATION with KVMMarkos Chandras
The kvm_* symbols are only available if KVM is selected. Fixes the following linking problem on a randconfig: arch/mips/built-in.o: In function `local_flush_tlb_mm': (.text+0x18a94): undefined reference to `kvm_local_flush_tlb_all' arch/mips/built-in.o: In function `local_flush_tlb_range': (.text+0x18d0c): undefined reference to `kvm_local_flush_tlb_all' kernel/built-in.o: In function `__schedule': core.c:(.sched.text+0x2a00): undefined reference to `kvm_local_flush_tlb_all' mm/built-in.o: In function `use_mm': (.text+0x30214): undefined reference to `kvm_local_flush_tlb_all' fs/built-in.o: In function `flush_old_exec': (.text+0xf0a0): undefined reference to `kvm_local_flush_tlb_all' make: *** [vmlinux] Error 1 Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5437/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Implement HAVE_CONTEXT_TRACKING.Ralf Baechle
This enables support for CONFIG_NO_HZ_FULL. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Cleanup flags in syscall flags handlers.Ralf Baechle
This will simplify further modifications. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: using strlcpy() instead of strncpy()Chen Gang
Ensure strings are always '\0' terminated. Or in the next pr_info() shit may hit the fan. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: John Crispin <blogic@openwrt.org> Cc: david.daney@cavium.com Cc: linux-mips@linux-mips.org Cc: Linux-Arch <linux-arch@vger.kernel.org> Cc: linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/5331/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Ralink: Use strlcpy() instead of strncpy().Chen Gang
'compatible' is used by strlen() in __of_device_is_compatible(). Ensure strings are always '\0' terminated. 'of_ids is not a structure in "include/uapi/*", so no need to initialize it completly; using strlcpy() instead of strncpy() will do. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: John Crispin <blogic@openwrt.org> Cc: juhosg@openwrt.org Cc: linux-mips@linux-mips.org Cc: Linux-Arch <linux-arch@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/5330/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Lantiq: Use strlcpy() instead of strncpy().Chen Gang
'compatible' is used by strlen() in __of_device_is_compatible(). Ensure strings are always '\0' terminated. 'of_ids is not a structure in "include/uapi/*", so no need to initialize it completly; using strlcpy() instead of strncpy() will do. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Linux-Arch <linux-arch@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/5329/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: OCTEON: Get rid of CONFIG_CAVIUM_OCTEON_HW_FIX_UNALIGNEDDavid Daney
When you turn it off, the kernel is unusable, so get rid of the option and always allow unaligned access. The Octeon specific memcpy intentionally does unaligned accesses and it must not fault. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5303/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Octeon: Remove vestiges of CONFIG_CAVIUM_DECODE_RSLDavid Daney
This config option doesn't exist any more, remove the leftover code for it too. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5302/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: OCTEON: Rename Kconfig CAVIUM_OCTEON_REFERENCE_BOARD to CAVIUM_OCTEON_SOCDavid Daney
CAVIUM_OCTEON_SOC most place we used to use CPU_CAVIUM_OCTEON. This allows us to CPU_CAVIUM_OCTEON in places where we have no OCTEON SOC. Remove CAVIUM_OCTEON_SIMULATOR as it doesn't really do anything, we can get the same configuration with CAVIUM_OCTEON_SOC. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: linux-ide@vger.kernel.org Cc: linux-edac@vger.kernel.org Cc: linux-i2c@vger.kernel.org Cc: netdev@vger.kernel.org Cc: spi-devel-general@lists.sourceforge.net Cc: devel@driverdev.osuosl.org Cc: linux-usb@vger.kernel.org Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Patchwork: https://patchwork.linux-mips.org/patch/5295/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: PowerTV: use free_reserved_area() to simplify codeJiang Liu
Use common help function free_reserved_area() to simplify code. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: David Rientjes <rientjes@google.com> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Minchan Kim <minchan@kernel.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Cc: David Howells <dhowells@redhat.com> Cc: Mark Salter <msalter@redhat.com> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: linux-mm@kvack.org Cc: linux-arch@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5248/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-10MIPS: Alchemy: fix wait functionManuel Lauss
Only an interrupt can wake the core from 'wait', enable interrupts locally before executing 'wait'. [ralf@linux-mips.org: This leave the race between an interrupt that's setting TIF_NEED_RESCHEd and entering the WAIT status. but at least it's going to bring Alchemy back from the dead, so I'm going to apply this patch.] Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: Maciej W. Rozycki <macro@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/5408/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-08Merge 3.10-rc5 into tty-nextGreg Kroah-Hartman
2013-06-08Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: "MIPS fixes across the field. The only area that's standing out is the exception handling which received it's dose of breakage as part of the microMIPS patchset" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: ralink: add missing SZ_1M multiplier MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf. MIPS: OCTEON: Improve _machine_halt implementation. MIPS: rtlx: Fix implicit declaration of function set_vi_handler() MIPS: Trap exception handling fixes MIPS: Quit exposing Kconfig symbols in uapi headers. MIPS: Remove duplicate definition of check_for_high_segbits.
2013-06-06MIPS: ralink: add missing SZ_1M multiplierJohn Crispin
On RT5350 the memory size is set to Bytes and not MegaBytes due to a missing multiplier. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: John Crispin <blogic@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/5378/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-06MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf.Ralf Baechle
cputime_to_timeval() takes a struct timeval *as its second argument but a struct compat_timeval * will be passed resulting in: CC arch/mips/kernel/binfmt_elfn32.o In file included from arch/mips/kernel/binfmt_elfn32.c:122:0: arch/mips/kernel/../../../fs/binfmt_elf.c: In function ‘fill_prstatus’: arch/mips/kernel/../../../fs/binfmt_elf.c:1330:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfn32.c:55: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfn32.c:122:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1331:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfn32.c:55: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfn32.c:122:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1336:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfn32.c:55: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfn32.c:122:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1337:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfn32.c:55: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfn32.c:122:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1339:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfn32.c:55: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfn32.c:122:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1340:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfn32.c:55: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ AS arch/mips/kernel/scall64-n32.o CC arch/mips/kernel/signal_n32.o CC arch/mips/kernel/binfmt_elfo32.o In file included from arch/mips/kernel/binfmt_elfo32.c:165:0: arch/mips/kernel/../../../fs/binfmt_elf.c: In function ‘fill_prstatus’: arch/mips/kernel/../../../fs/binfmt_elf.c:1330:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfo32.c:78: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfo32.c:165:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1331:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfo32.c:78: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfo32.c:165:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1336:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfo32.c:78: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfo32.c:165:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1337:3: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfo32.c:78: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfo32.c:165:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1339:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfo32.c:78: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ In file included from arch/mips/kernel/binfmt_elfo32.c:165:0: arch/mips/kernel/../../../fs/binfmt_elf.c:1340:2: warning: passing argument 2 of ‘cputime_to_timeval’ from incompatible pointer type [enabled by default] In file included from include/asm-generic/cputime.h:12:0, from /home/ralf/src/linux/linux-mips/arch/mips/include/asm/cputime.h:4, from include/linux/sched.h:28, from include/linux/ptrace.h:5, from include/uapi/linux/elfcore.h:7, from include/linux/elfcore.h:7, from arch/mips/kernel/binfmt_elfo32.c:78: include/asm-generic/cputime_nsecs.h:92:91: note: expected ‘struct timeval *’ but argument is of type ‘struct compat_timeval *’ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-06MIPS: OCTEON: Improve _machine_halt implementation.David Daney
As noted by Wladislav Wiebe: $ halt .. Sent SIGKILL to all processes Requesting system halt [66.729373] System halted. [66.733244] [66.734761] ===================================== [66.739473] [ BUG: lock held at task exit time! ] [66.744188] 3.8.7-0-sampleversion-fct #49 Tainted: G O [66.750202] ------------------------------------- [66.754913] init/21479 is exiting with locks still held! [66.760234] 1 lock held by init/21479: [66.763990] #0: (reboot_mutex){+.+...}, at: [<ffffffff801776c8>] SyS_reboot+0xe0/0x218 [66.772165] [66.772165] stack backtrace: [66.776532] Call Trace: [66.778992] [<ffffffff805780a8>] dump_stack+0x8/0x34 [66.783972] [<ffffffff801618b0>] do_exit+0x610/0xa70 [66.788948] [<ffffffff801777a8>] SyS_reboot+0x1c0/0x218 [66.794186] [<ffffffff8013d6a4>] handle_sys64+0x44/0x64 This is an alternative fix to the one sent by Wladislav. We kill the watchdog for each CPU and then spin in WAIT with interrupts disabled. This is the lowest power mode for the OCTEON. If we were to spin with interrupts enabled, we would get a continual stream of warning messages and backtraces from the lockup detector, so I chose to disable interrupts. Signed-off-by: David Daney <david.daney@cavium.com> Cc: Maxim Uvarov <muvarov@gmail.com> Cc: Wladislav Wiebe <wladislav.kw@gmail.com> Cc: linux-mips@linux-mips.org Cc: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/5324/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-06MIPS: rtlx: Fix implicit declaration of function set_vi_handler()Yoichi Yuasa
arch/mips/kernel/rtlx.c: In function 'rtlx_module_init': arch/mips/kernel/rtlx.c:523:3: error: implicit declaration of function 'set_vi_handler' [-Werror=implicit-function-declaration] Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5340/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
generated by cgit (git 2.34.1) at 2025-09-28 01:21:56 +0000