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linux/arch/tile/include/asm
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Chris Metcalf 3e2e0d2c22 tile: comment assumption about __insn_mtspr for <asm/irqflags.h> 
The arch_local_irq_save(), etc., routines are required to function
as compiler barriers.  They do, but it's subtle and requires knowing
that the gcc builtin __insn_mtspr() is marked as a memory clobber.
Provide a comment explaining the assumption.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
[ This came about from me wondering about the synchronization rules of
  __insn_mtspr()   - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-09 10:08:14 -07:00
..
asm-offsets.h
atomic_32.h arch/tile: optimize get_user/put_user and friends 2012-05-25 12:48:23 -04:00
atomic_64.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
atomic.h tile: fix multiple build failures from system.h dismantle 2012-04-02 11:57:37 -04:00
backtrace.h arch/tile: refactor backtracing code 2011-05-02 13:49:14 -04:00
barrier.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
bitops_32.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
bitops_64.h arch/tile: fix gcc 4.6 warnings in <asm/bitops_64.h> 2012-04-02 12:00:15 -04:00
bitops.h tile: fix bug where fls(0) was not returning 0 2012-05-25 15:00:43 -04:00
cache.h tilegx pci: support I/O to arbitrarily-cached pages 2012-07-18 16:40:05 -04:00
cacheflush.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
checksum.h arch/tile: break out the "csum a long" function to <asm/checksum.h> 2012-07-11 16:04:57 -04:00
cmpxchg.h tile: fix multiple build failures from system.h dismantle 2012-04-02 11:57:37 -04:00
compat.h tile: work around bug in the generic sys_llseek 2013-03-04 11:19:09 -05:00
current.h
delay.h
device.h tile pci: enable IOMMU to support DMA for legacy devices 2012-07-18 16:40:17 -04:00
dma-mapping.h tile: dma_debug: add debug_dma_mapping_error support 2012-11-28 15:29:00 +01:00
dma.h
edac.h drivers/edac: provide support for tile architecture 2011-03-10 13:30:14 -05:00
elf.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2012-12-18 15:05:30 -08:00
fixmap.h tilegx pci: support I/O to arbitrarily-cached pages 2012-07-18 16:40:05 -04:00
ftrace.h
futex.h arch/tile: optimize get_user/put_user and friends 2012-05-25 12:48:23 -04:00
hardirq.h
hardwall.h UAPI: (Scripted) Disintegrate arch/tile/include/asm 2012-10-09 09:47:47 +01:00
highmem.h highmem: kill all __kmap_atomic() 2012-03-20 21:48:30 +08:00
homecache.h tilegx pci: support I/O to arbitrarily-cached pages 2012-07-18 16:40:05 -04:00
hugetlb.h mm: hugetlb: add arch hook for clearing page flags before entering pool 2012-10-09 16:22:24 +09:00
hv_driver.h
hw_irq.h
ide.h
io.h tile: fix memcpy_*io functions for allnoconfig 2013-02-08 13:20:40 -05:00
irq.h arch/tile: use 0 for IRQ_RESCHEDULE instead of 1 2012-04-02 12:00:16 -04:00
irqflags.h tile: comment assumption about __insn_mtspr for <asm/irqflags.h> 2013-04-09 10:08:14 -07:00
Kbuild tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
kexec.h arch/tile: support kexec() for tilegx 2012-05-25 12:48:25 -04:00
kmap_types.h tile: remove km_type definitions 2012-07-24 15:27:32 +08:00
linkage.h
mmu_context.h arch/tile: Allow tilegx to build with either 16K or 64K page size 2012-05-25 12:48:24 -04:00
mmu.h arch/tile: Allow tilegx to build with either 16K or 64K page size 2012-05-25 12:48:24 -04:00
mmzone.h Fix node_start/end_pfn() definition for mm/page_cgroup.c 2011-06-27 14:13:09 -07:00
module.h arch/tile: Allow tilegx to build with either 16K or 64K page size 2012-05-25 12:48:24 -04:00
page.h tilegx pci: support I/O to arbitrarily-cached pages 2012-07-18 16:40:05 -04:00
pci.h ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
percpu.h
pgalloc.h arch/tile: Allow tilegx to build with either 16K or 64K page size 2012-05-25 12:48:24 -04:00
pgtable_32.h arch/tile: Allow tilegx to build with either 16K or 64K page size 2012-05-25 12:48:24 -04:00
pgtable_64.h arch/tile: Allow tilegx to build with either 16K or 64K page size 2012-05-25 12:48:24 -04:00
pgtable.h arch/tile: support multiple huge page sizes dynamically 2012-05-25 12:48:27 -04:00
processor.h kill stray kernel_thread() garbage 2012-11-28 21:53:36 -05:00
ptrace.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
sections.h arch/tile: Miscellaneous cleanup changes. 2010-07-06 13:41:51 -04:00
setup.h UAPI: (Scripted) Disintegrate arch/tile/include/asm 2012-10-09 09:47:47 +01:00
sigframe.h
signal.h UAPI: (Scripted) Disintegrate arch/tile/include/asm 2012-10-09 09:47:47 +01:00
smp.h smp: introduce a generic on_each_cpu_mask() function 2012-03-28 17:14:35 -07:00
spinlock_32.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
spinlock_64.h arch/tile: use atomic exchange in arch_write_unlock() 2012-04-02 12:13:49 -04:00
spinlock_types.h
spinlock.h
stack.h arch/tile: various bugs in stack backtracer 2012-04-02 12:12:45 -04:00
string.h
switch_to.h tile: support GENERIC_KERNEL_THREAD and GENERIC_KERNEL_EXECVE 2012-10-20 13:13:29 -04:00
syscall.h
syscalls.h tile: switch to generic sigaltstack 2013-02-03 18:16:21 -05:00
thread_info.h tile: remove cpu_idle_on_new_stack 2012-06-06 11:29:31 -04:00
tile-desc_32.h arch/tile: factor out <arch/opcode.h> header 2011-11-03 16:58:54 -04:00
tile-desc_64.h arch/tile: factor out <arch/opcode.h> header 2011-11-03 16:58:54 -04:00
tile-desc.h arch/tile: factor out <arch/opcode.h> header 2011-11-03 16:58:54 -04:00
timex.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
tlb.h
tlbflush.h arch/tile: support multiple huge page sizes dynamically 2012-05-25 12:48:27 -04:00
topology.h tile: Remove SD_PREFER_LOCAL leftover 2012-08-15 13:22:55 +02:00
traps.h arch/tile: work around a hardware issue with the return-address stack 2012-04-02 12:12:48 -04:00
uaccess.h tile: fix bug in get_user() for 4-byte values 2012-06-16 16:56:13 -04:00
unaligned.h Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
unistd.h burying unused conditionals 2013-02-14 09:21:15 -05:00
user.h
vga.h arch/tile: various header improvements for building drivers 2011-05-04 14:40:54 -04:00