diff options
| author | Jim Kukunas <james.t.kukunas@linux.intel.com> | 2012-05-22 03:54:04 (GMT) |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-05-22 03:54:04 (GMT) |
| commit | ea4d26ae24e58fbd2c61de9242adab053cb982d8 (patch) | |
| tree | 3115dd168f0cf1eb1eb5dd6aecc385cfa0e8bc05 /arch/x86/include/asm/xor_64.h | |
| parent | 56a519913eeba2bdae4d7ee39e80fab442c3836c (diff) | |
| download | linux-ea4d26ae24e58fbd2c61de9242adab053cb982d8.tar.xz | |
raid5: add AVX optimized RAID5 checksumming
Optimize RAID5 xor checksumming by taking advantage of
256-bit YMM registers introduced in AVX.
Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'arch/x86/include/asm/xor_64.h')
| -rw-r--r-- | arch/x86/include/asm/xor_64.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/include/asm/xor_64.h b/arch/x86/include/asm/xor_64.h index 1549b5e..b9b2323 100644 --- a/arch/x86/include/asm/xor_64.h +++ b/arch/x86/include/asm/xor_64.h @@ -347,15 +347,21 @@ static struct xor_block_template xor_block_sse = { .do_5 = xor_sse_5, }; + +/* Also try the AVX routines */ +#include "xor_avx.h" + #undef XOR_TRY_TEMPLATES #define XOR_TRY_TEMPLATES \ do { \ + AVX_XOR_SPEED; \ xor_speed(&xor_block_sse); \ } while (0) /* We force the use of the SSE xor block because it can write around L2. We may also be able to load into the L1 only depending on how the cpu deals with a load to a line that is being prefetched. */ -#define XOR_SELECT_TEMPLATE(FASTEST) (&xor_block_sse) +#define XOR_SELECT_TEMPLATE(FASTEST) \ + AVX_SELECT(&xor_block_sse) #endif /* _ASM_X86_XOR_64_H */ |