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linux-kernel-test/arch/parisc/include/asm
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John David Anglin e8d8fc219f parisc: Ensure volatile space register %sr1 is not clobbered 
I still see the occasional random segv on rp3440.  Looking at one of
these (a code 15), it appeared the problem must be with the cache
handling of anonymous pages.  Reviewing this, I noticed that the space
register %sr1 might be being clobbered when we flush an anonymous page.

Register %sr1 is used for TLB purges in a couple of places.  These
purges are needed on PA8800 and PA8900 processors to ensure cache
consistency of flushed cache lines.

The solution here is simply to move the %sr1 load into the TLB lock
region needed to ensure that one purge executes at a time on SMP
systems.  This was already the case for one use.  After a few days of
operation, I haven't had a random segv on my rp3440.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Helge Deller <deller@gmx.de>
2013-07-09 22:09:22 +02:00
..
agp.h
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asmregs.h
assembly.h parisc: make interrupt and interruption stack allocation reentrant 2013-05-24 22:35:36 +02:00
atomic.h parisc: implement atomic64_dec_if_positive() 2013-05-06 23:10:04 +02:00
barrier.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
bitops.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
bug.h [PARISC] fix missing TAINT_WARN problem 2012-06-05 14:10:17 +09:00
bugs.h
cache.h parisc: remove homegrown L1_CACHE_ALIGN macro 2010-10-21 21:20:09 -04:00
cacheflush.h parisc: Change kunmap macro to static inline function 2013-04-25 22:36:31 +02:00
checksum.h
cmpxchg.h parisc: fix missing cmpxchg file error from system.h split 2012-04-02 14:41:26 -07:00
compat_ucontext.h
compat.h parisc: convert msgrcv and msgsnd syscalls to use compat layer 2013-02-20 22:56:50 +01:00
current.h
delay.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
dma-mapping.h parisc: Provide default implementation for dma_{alloc, free}_attrs 2013-05-06 22:29:09 +02:00
dma.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
eisa_bus.h
eisa_eeprom.h Fix common misspellings 2011-03-31 11:26:23 -03:00
elf.h parisc: fix personality on 32bit kernel 2013-02-20 22:55:26 +01:00
fb.h
fixmap.h
floppy.h parisc: remove IRQF_DISABLED 2013-02-20 22:50:26 +01:00
ftrace.h parisc: add CALLER_ADDR{0-6} macros 2009-12-16 03:48:54 +00:00
futex.h [PARISC] futex: Use same lock set as lws calls 2012-02-27 09:35:08 -06:00
grfioctl.h
hardirq.h parisc: fix irq stack on UP and SMP 2013-05-24 23:29:01 +02:00
hardware.h parisc: drop include of asm/pdc.h from asm/hardware.h 2012-05-10 15:12:08 -07:00
ide.h
io.h
irq.h [PARISC] Convert to new irq_chip functions 2011-02-10 10:22:14 -06:00
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
kbdleds.h keyboard: Use BIOS Keyboard variable to set Numlock 2012-05-08 14:19:41 -07:00
Kbuild tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
kmap_types.h
ldcw.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
led.h
linkage.h
machdep.h
mc146818rtc.h
mckinley.h
mmu_context.h atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
mmu.h
mmzone.h parisc: fix kernel BUG at arch/parisc/include/asm/mmzone.h:50 (part 2) 2013-06-18 20:20:21 +02:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
page.h parisc: fixes and cleanups in page cache flushing (1/4) 2013-02-20 22:49:19 +01:00
parisc-device.h
parport.h ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
pci.h parisc: provide pci_mmap_page_range() for parisc 2013-06-18 20:29:08 +02:00
pdc_chassis.h
pdc.h UAPI: (Scripted) Disintegrate arch/parisc/include/asm 2012-10-16 21:28:05 +01:00
pdcpat.h
perf_event.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
perf.h
pgalloc.h
pgtable.h consolidate io_remap_pfn_range definitions 2013-06-29 12:46:35 +04:00
prefetch.h [PARISC] fix panic on prefetch(NULL) on PA7300LC 2012-05-16 13:15:21 +01:00
processor.h parisc: fix irq stack on UP and SMP 2013-05-24 23:29:01 +02:00
psw.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
ptrace.h UAPI: (Scripted) Disintegrate arch/parisc/include/asm 2012-10-16 21:28:05 +01:00
ropes.h
rt_sigframe.h
rtc.h
runway.h
scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
sections.h
serial.h
shmparam.h
signal.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-02-23 18:50:11 -08:00
smp.h [PARISC] Fix parisc compile failure after smp: Add task_struct argument to __cpu_up() 2012-05-25 12:35:45 +01:00
special_insns.h parisc: optimize mtsp(0,sr) inline assembly 2013-07-09 22:09:21 +02:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h parisc: add missing includes in asm/spinlock.h 2012-05-10 15:12:08 -07:00
string.h
superio.h
switch_to.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
syscall.h
termios.h UAPI: (Scripted) Disintegrate arch/parisc/include/asm 2012-10-16 21:28:05 +01:00
thread_info.h parisc: add kernel stack overflow check 2013-05-07 21:34:07 +02:00
timex.h Disintegrate asm/system.h for PA-RISC 2012-03-28 18:30:02 +01:00
tlb.h
tlbflush.h parisc: Ensure volatile space register %sr1 is not clobbered 2013-07-09 22:09:22 +02:00
traps.h
uaccess.h parisc: uaccess: fix compiler warnings caused by __put_user casting 2013-04-25 22:36:42 +02:00
ucontext.h
unaligned.h
unistd.h consolidate cond_syscall and SYSCALL_ALIAS declarations 2013-03-03 22:55:19 -05:00
unwind.h