diff options
| author | Jim Kukunas <james.t.kukunas@linux.intel.com> | 2012-05-22 05:54:04 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-05-22 05:54:04 +0200 |
| commit | ea4d26ae24e58fbd2c61de9242adab053cb982d8 (patch) | |
| tree | 3115dd168f0cf1eb1eb5dd6aecc385cfa0e8bc05 /arch/x86/include/asm/xor_32.h | |
| parent | crypto: disable preemption while benchmarking RAID5 xor checksumming (diff) | |
| download | linux-ea4d26ae24e58fbd2c61de9242adab053cb982d8.tar.xz linux-ea4d26ae24e58fbd2c61de9242adab053cb982d8.zip | |
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_32.h')
| -rw-r--r-- | arch/x86/include/asm/xor_32.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/include/asm/xor_32.h b/arch/x86/include/asm/xor_32.h index 133b40a0f495..454570891bdc 100644 --- a/arch/x86/include/asm/xor_32.h +++ b/arch/x86/include/asm/xor_32.h @@ -861,6 +861,9 @@ static struct xor_block_template xor_block_pIII_sse = { .do_5 = xor_sse_5, }; +/* Also try the AVX routines */ +#include "xor_avx.h" + /* Also try the generic routines. */ #include <asm-generic/xor.h> @@ -871,6 +874,7 @@ do { \ xor_speed(&xor_block_8regs_p); \ xor_speed(&xor_block_32regs); \ xor_speed(&xor_block_32regs_p); \ + AVX_XOR_SPEED; \ if (cpu_has_xmm) \ xor_speed(&xor_block_pIII_sse); \ if (cpu_has_mmx) { \ @@ -883,6 +887,6 @@ do { \ 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) \ - (cpu_has_xmm ? &xor_block_pIII_sse : FASTEST) + AVX_SELECT(cpu_has_xmm ? &xor_block_pIII_sse : FASTEST) #endif /* _ASM_X86_XOR_32_H */ |