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c5e1503fd0
kernel_optimize_test/arch/mips/kernel
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Paul Burton c5e1503fd0 MIPS: Fix execution hazard during watchpoint register probe 
Writing a value to a WatchLo* register creates an execution hazard, so
if its value is then read before that hazard is cleared then said value
may be invalid. The mips_probe_watch_registers function must therefore
clear the execution hazard between setting the match bits in a WatchLo*
register & reading the register back in order to check which are set.

This fixes intermittent incorrect watchpoint register probing on some
MIPS cores such as interAptiv & proAptiv.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/5474/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-21 18:07:03 +02:00
..
.gitignore
8250-platform.c
asm-offsets.c MIPS: ASM offsets for VCPU arch specific fields. 2013-05-08 03:55:37 +02:00
binfmt_elfn32.c MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf. 2013-06-06 16:11:26 +02:00
binfmt_elfo32.c MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf. 2013-06-06 16:11:26 +02:00
bmips_vec.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
branch.c MIPS: MIPS16e: Support handling of delay slots. 2013-05-09 17:55:20 +02:00
cevt-bcm1480.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cevt-ds1287.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cevt-gic.c MIPS: Add new GIC clockevent driver. 2013-05-09 17:55:21 +02:00
cevt-gt641xx.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cevt-r4k.c Merge branch 'mti-next' of git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next 2013-05-09 17:57:30 +02:00
cevt-sb1250.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cevt-smtc.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cevt-txx9.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cpu-bugs64.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cpu-probe.c MIPS: Consolidate idle loop / WAIT instruction support in a single file. 2013-05-22 01:34:25 +02:00
crash_dump.c MIPS: Fix build error for crash_dump.c in 3.10-rc1 2013-05-17 20:36:02 +02:00
crash.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
csrc-bcm1480.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
csrc-gic.c MIPS: Refactor GIC clocksource code. 2013-05-09 17:55:20 +02:00
csrc-ioasic.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
csrc-powertv.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
csrc-r4k.c
csrc-sb1250.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
early_printk.c early_printk: consolidate random copies of identical code 2013-04-29 18:28:13 -07:00
entry.S Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-12 12:22:13 -08:00
ftrace.c MIPS: ftrace: Add missing CONFIG_DYNAMIC_FTRACE 2013-06-10 18:15:18 +02:00
genex.S MIPS: Idle: Break r4k_wait into two functions and fix it. 2013-05-22 01:34:28 +02:00
gpio_txx9.c
head.S MIPS: Move gas macro MAPPED_KERNEL_SETUP_TLB to IP27-specific code. 2013-06-21 18:07:00 +02:00
i8253.c
i8259.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
idle.c MIPS: Alchemy: fix wait function 2013-06-10 17:59:46 +02:00
irq_cpu.c Merge branch 'mips-next-3.9' of git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next 2013-02-21 12:51:33 +01:00
irq_txx9.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
irq-gic.c MIPS: Add new GIC clockevent driver. 2013-05-09 17:55:21 +02:00
irq-gt641xx.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
irq-msc01.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
irq-rm7000.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
irq.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
jump_label.c
kgdb.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
kprobes.c kprobes/mips: Fix to check double free of insn slot 2013-05-22 12:48:30 +02:00
linux32.c unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
machine_kexec.c MIPS: kdump: Add support 2012-12-13 16:46:47 +01:00
Makefile MIPS: Consolidate idle loop / WAIT instruction support in a single file. 2013-05-22 01:34:25 +02:00
mcount.S MIPS: Unbreak function tracer for 64-bit kernel. 2013-04-05 15:10:22 +02:00
mips_ksyms.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
mips_machine.c MIPS: move mips_{set,get}_machine_name() to a more generic place 2013-05-08 01:19:07 +02:00
mips-mt-fpaff.c MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y 2012-12-13 18:15:26 +01:00
mips-mt.c Merge branch 'master' into for-next 2012-04-08 21:48:52 +02:00
module-rela.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
module.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
octeon_switch.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
perf_event_mipsxx.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
perf_event.c
proc.c MIPS: Idle: Consolidate all declarations in <asm/idle.h>. 2013-05-22 01:34:27 +02:00
process.c MIPS: Consolidate idle loop / WAIT instruction support in a single file. 2013-05-22 01:34:25 +02:00
prom.c MIPS: move mips_{set,get}_machine_name() to a more generic place 2013-05-08 01:19:07 +02:00
ptrace32.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
ptrace.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
r4k_fpu.S
r4k_switch.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
r2300_fpu.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
r2300_switch.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
r6000_fpu.S
relocate_kernel.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
reset.c
rtlx.c MIPS: rtlx: Fix implicit declaration of function set_vi_handler() 2013-06-06 16:11:25 +02:00
scall32-o32.S MIPS: microMIPS: Add support for exception handling. 2013-05-09 17:55:18 +02:00
scall64-64.S MIPS: N64: Wire getdents64(2) 2013-05-22 15:37:58 +02:00
scall64-n32.S get rid of compat_sys_semctl() and friends in case of ARCH_WANT_OLD_COMPAT_IPC 2013-03-03 23:00:27 -05:00
scall64-o32.S unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
setup.c MIPS: add detect_memory_region() 2013-05-08 01:19:11 +02:00
signal32.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-03-02 07:44:16 -08:00
signal_n32.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-03-02 07:44:16 -08:00
signal-common.h most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set 2012-06-01 12:58:51 -04:00
signal.c MIPS: microMIPS: Add vdso support. 2013-05-09 17:55:19 +02:00
smp-bmips.c MIPS: BMIPS: delay irq enable to ->smp_finish() 2012-07-19 11:23:44 +02:00
smp-cmp.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
smp-mt.c MIPS: Move 'gic_present' to common location. 2013-05-09 17:55:20 +02:00
smp-up.c
smp.c MIPS: Idle: Consolidate all declarations in <asm/idle.h>. 2013-05-22 01:34:27 +02:00
smtc-asm.S MIPS: microMIPS: Add support for exception handling. 2013-05-09 17:55:18 +02:00
smtc-proc.c mips: single_open() leaks 2013-05-05 00:10:21 -04:00
smtc.c MIPS: Idle: Do address fiddlery in helper functions. 2013-05-22 01:34:28 +02:00
spinlock_test.c
spram.c
stacktrace.c
sync-r4k.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
syscall.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-03-02 07:44:16 -08:00
time.c MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
topology.c
traps.c MIPS: Trap exception handling fixes 2013-05-23 17:47:51 +02:00
unaligned.c MIPS: MIPS16e: Add unaligned access support. 2013-05-09 17:55:20 +02:00
vdso.c
vmlinux.lds.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
vpe.c Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-03-02 07:44:16 -08:00
watch.c MIPS: Fix execution hazard during watchpoint register probe 2013-06-21 18:07:03 +02:00