Kernel/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-01-11 07:39:47 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
linux/arch/arm/kernel
History
Mark Rutland 2c32c65e37 ARM: 8129/1: errata: work around Cortex-A15 erratum 830321 using dummy strex 
On revisions of Cortex-A15 prior to r3p3, a CLREX instruction at PL1 may
falsely trigger a watchpoint exception, leading to potential data aborts
during exception return and/or livelock.

This patch resolves the issue in the following ways:

  - Replacing our uses of CLREX with a dummy STREX sequence instead (as
    we did for v6 CPUs).

  - Removing the clrex code from v7_exit_coherency_flush and derivatives,
    since this only exists as a minor performance improvement when
    non-cached exclusives are in use (Linux doesn't use these).

Benchmarking on a variety of ARM cores revealed no measurable
performance difference with this change applied, so the change is
performed unconditionally and no new Kconfig entry is added.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-27 15:40:13 +01:00
..
.gitignore
[ARM] 5194/1: update .gitignore
2008-08-12 19:54:09 +01:00
arch_timer.c
arch_timer: Move to generic sched_clock framework
2013-10-09 16:54:10 -07:00
armksyms.c
ARM: Better virt_to_page() handling
2014-04-03 22:46:34 +01:00
arthur.c
[ARM] arm/kernel/arthur.c: add MODULE_LICENSE
2008-05-17 22:55:16 +01:00
asm-offsets.c
KVM: arm/arm64: vgic: move GICv2 registers to their own structure
2014-07-11 04:57:31 -07:00
atags_compat.c
ARM: 7505/1: split out ATAGS parsing
2012-09-03 22:55:56 +01:00
atags_parse.c
ARM: 8025/1: Get rid of meminfo
2014-06-01 01:17:12 +01:00
atags_proc.c
procfs: new helper - PDE_DATA(inode)
2013-04-09 14:13:32 -04:00
atags.h
ARM: constify machine_desc structure uses
2013-07-26 14:55:59 +01:00
bios32.c
ARM/PCI: Call pcie_bus_configure_settings() to set MPS
2014-05-30 10:50:57 -06:00
calls.S
ARM: wire up memfd_create syscall
2014-08-09 14:07:59 +01:00
cpuidle.c
cpuidle: Add common time keeping and irq enabling
2012-03-21 01:59:40 -04:00
crash_dump.c
ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr
2014-04-07 12:10:00 +01:00
debug.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
devtree.c
arm: Add devicetree fixup machine function
2014-07-29 21:26:49 -06:00
dma-isa.c
ARM: dma-isa: request cascade channel after registering it
2009-12-24 18:34:08 +00:00
dma.c
locking, ARM: Annotate low level hw locks as raw
2011-09-13 11:12:14 +02:00
early_printk.c
early_printk: consolidate random copies of identical code
2013-04-29 18:28:13 -07:00
elf.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
entry-armv.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
entry-common.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
entry-header.S
ARM: 8129/1: errata: work around Cortex-A15 erratum 830321 using dummy strex
2014-08-27 15:40:13 +01:00
entry-v7m.S
ARM: 7890/1: v7-M: drop using mach/entry-macro.S
2013-12-29 12:32:32 +00:00
etm.c
ARM: 7905/1: etm: Remove unnecessary amba_set_drvdata()
2013-12-29 12:32:34 +00:00
fiq.c
ARM: 7819/1: fiq: Cast the first argument of flush_icache_range()
2013-08-20 00:11:50 +01:00
fiqasm.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
ftrace.c
ARM: 8022/1: ftrace: work with CONFIG_DEBUG_SET_MODULE_RONX
2014-04-23 01:24:31 +01:00
head-common.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
head-nommu.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
head.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
hibernate.c
ARM: 8011/1: ARM hibernation / suspend-to-disk
2014-04-23 01:24:14 +01:00
hw_breakpoint.c
CPU hotplug notifiers registration fixes for 3.15-rc1
2014-04-07 14:55:46 -07:00
hyp-stub.S
Here are the PPC and ARM changes for KVM, which I separated because
2014-08-07 11:35:30 -07:00
insn.c
ARM: fix missing bug.h include in arch/arm/kernel/insn.c
2012-03-30 11:51:46 +01:00
insn.h
ARM: 7334/1: add jump label support
2012-03-24 09:38:56 +00:00
io.c
ARM: 7930/1: Introduce atomic MMIO modify
2014-01-28 14:06:25 +00:00
irq.c
ARM: l2c: add platform independent core L2 cache OF initialisation
2014-05-30 00:49:00 +01:00
isa.c
arm: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:15 -07:00
iwmmxt.S
Merge branches 'fixes' and 'misc' into for-next
2014-08-05 10:27:13 +01:00
jump_label.c
ARM: 7334/1: add jump label support
2012-03-24 09:38:56 +00:00
kgdb.c
ARM: 8124/1: don't enter kgdb when userspace executes a kgdb break instruction
2014-08-02 15:20:30 +01:00
kprobes-arm.c
ARM: Make arch_specific_insn a define for new arch_probes_insn structure
2014-03-18 16:39:40 -04:00
kprobes-common.c
ARM: probes: fix instruction fetch order with <asm/opcodes.h>
2014-04-01 16:45:19 +03:00
kprobes-test-arm.c
ARM: kprobes: Fix test code compilation errors for ARMv4 targets
2014-07-02 12:48:36 +01:00
kprobes-test-thumb.c
ARM: kprobes-test: use <asm/opcodes.h> for Thumb instruction building
2014-04-01 16:48:26 +03:00
kprobes-test.c
ARM: kprobes: Prevent known test failures stopping other tests running
2014-07-02 12:48:36 +01:00
kprobes-test.h
ARM: kprobes-test: Workaround GAS .align bug
2014-04-01 16:48:27 +03:00
kprobes-thumb.c
ARM: probes: fix instruction fetch order with <asm/opcodes.h>
2014-04-01 16:45:19 +03:00
kprobes.c
ARM: probes: fix instruction fetch order with <asm/opcodes.h>
2014-04-01 16:45:19 +03:00
kprobes.h
ARM: Make arch_specific_insn a define for new arch_probes_insn structure
2014-03-18 16:39:40 -04:00
machine_kexec.c
ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo
2014-04-22 22:23:58 +01:00
Makefile
Merge branches 'alignment', 'fixes', 'l2c' (early part) and 'misc' into for-next
2014-06-05 12:35:52 +01:00
module.c
ARM: 8127/1: module: add support for R_ARM_TARGET1 relocations
2014-08-27 15:40:11 +01:00
opcodes.c
ARM: 7206/1: Add generic ARM instruction set condition code checks.
2011-12-13 08:52:02 +00:00
patch.c
ARM: 7332/1: extract out code patch function from kprobes
2012-03-24 09:38:55 +00:00
patch.h
ARM: 7332/1: extract out code patch function from kprobes
2012-03-24 09:38:55 +00:00
perf_event_cpu.c
Merge branch 'devel-stable' into for-next
2014-08-05 10:27:25 +01:00
perf_event_v6.c
arm: perf: clean up PMU names
2014-07-02 15:48:25 +01:00
perf_event_v7.c
arm: perf: krait: stop using singleton PMU
2014-07-02 15:48:26 +01:00
perf_event_xscale.c
arm: perf: clean up PMU names
2014-07-02 15:48:25 +01:00
perf_event.c
Merge branch 'devel-stable' into for-next
2014-08-05 10:27:25 +01:00
perf_regs.c
ARM: perf: add support for perf registers API
2013-09-30 16:41:50 +01:00
pj4-cp0.c
ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor
2014-04-25 12:07:34 +01:00
probes-arm.c
ARM: kprobes: Disallow instructions with PC and register specified shift
2014-07-02 12:48:36 +01:00
probes-arm.h
ARM: Make arch_specific_insn a define for new arch_probes_insn structure
2014-03-18 16:39:40 -04:00
probes-thumb.c
ARM: Make arch_specific_insn a define for new arch_probes_insn structure
2014-03-18 16:39:40 -04:00
probes-thumb.h
ARM: Make arch_specific_insn a define for new arch_probes_insn structure
2014-03-18 16:39:40 -04:00
probes.c
ARM: probes: fix instruction fetch order with <asm/opcodes.h>
2014-04-01 16:45:19 +03:00
probes.h
ARM: Make arch_specific_insn a define for new arch_probes_insn structure
2014-03-18 16:39:40 -04:00
process.c
Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
2014-04-11 11:56:40 -07:00
psci_smp.c
ARM: Check if a CPU has gone offline
2014-05-15 10:16:30 -04:00
psci.c
PSCI: Add initial support for PSCIv0.2 functions
2014-05-15 10:16:00 -04:00
ptrace.c
ARM: 8087/1: ptrace: reload syscall number after secure_computing() check
2014-06-29 10:29:35 +01:00
relocate_kernel.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
return_address.c
ARM: 7676/1: fix a wrong value returned from CALLER_ADDRn
2013-03-19 11:43:46 +00:00
setup.c
ARM: hwcap: disable HWCAP_SWP if the CPU advertises it has exclusives
2014-07-18 12:29:51 +01:00
signal.c
ARM: add uprobes support
2014-03-18 16:39:40 -04:00
sigreturn_codes.S
ARM: 7895/1: signal: fix armv7-m build issue in sigreturn_codes.S
2013-11-30 22:21:00 +00:00
sleep.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
smp_scu.c
ARM: 8122/1: smp_scu: enable SCU standby support
2014-08-02 08:51:53 +01:00
smp_tlb.c
ARM: 8111/1: Enable erratum 798181 for Broadcom Brahma-B15
2014-07-24 14:40:26 +01:00
smp_twd.c
cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE}
2014-03-19 14:10:24 +01:00
smp.c
ARM: add IPI tracepoints
2014-08-07 20:40:41 -04:00
stacktrace.c
ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation
2014-05-30 01:12:32 +01:00
suspend.c
ARM: suspend: use hash of cpu_logical_map value to index into save array
2013-07-30 09:00:43 -04:00
swp_emulate.c
ARM: SWP emulation: only initialise on ARMv7 CPUs
2014-07-18 12:29:49 +01:00
sys_arm.c
arm: switch to generic fork/vfork/clone
2012-11-28 22:13:54 -05:00
sys_oabi-compat.c
locks: rename file-private locks to "open file description locks"
2014-04-22 08:23:58 -04:00
tcm.c
ARM: add permission annotations to MT_MEMORY* mapping types
2013-12-11 09:53:14 +00:00
thumbee.c
ARM: 7385/1: ThumbEE: Use cpuid macros to read ID_PFR0 for ThumbEE
2012-04-25 19:49:26 +01:00
time.c
ARM: 8072/1: time: Make use of arm_get_current_stackframe
2014-07-18 12:29:14 +01:00
topology.c
sched: Fix compiler warnings
2014-07-02 08:33:48 +02:00
traps.c
ARM: 8074/1: traps: Make use of the frame_pointer macro
2014-07-18 12:29:18 +01:00
unwind.c
ARM: 8073/1: unwind: Use arm_get_current_stackframe
2014-07-18 12:29:16 +01:00
uprobes-arm.c
ARM: add uprobes support
2014-03-18 16:39:40 -04:00
uprobes.c
ARM: 8043/1: uprobes need icache flush after xol write
2014-05-25 23:48:45 +01:00
uprobes.h
ARM: add uprobes support
2014-03-18 16:39:40 -04:00
v7m.c
ARM: 7828/1: ARMv7-M: implement restart routine common to all v7-M machines
2013-09-02 13:49:29 +01:00
vmlinux.lds.S
ARM: 8088/1: vmlinux.lds.S: drop redundant .comment
2014-07-18 12:29:23 +01:00
xscale-cp0.c
arm: remove several unnecessary module.h include instances
2011-10-31 19:30:48 -04:00