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| author | Gayatri Kammela <gayatri.kammela@intel.com> | 2016-08-13 03:03:19 +0200 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2016-09-21 18:09:44 +0200 |
| commit | e0a491c1296874a1aca51cc68452f12a4d950029 (patch) | |
| tree | d69949fe4db93fc1cc886fa359b8a7c58f4f3021 /lib/raid6/algos.c | |
| parent | md-cluster: make resync lock also could be interruptted (diff) | |
| download | linux-e0a491c1296874a1aca51cc68452f12a4d950029.tar.xz linux-e0a491c1296874a1aca51cc68452f12a4d950029.zip | |
lib/raid6: Add AVX512 optimized gen_syndrome functions
Optimize RAID6 gen_syndrom functions to take advantage of
the 512-bit ZMM integer instructions introduced in AVX512.
AVX512 optimized gen_syndrom functions, which is simply based
on avx2.c written by Yuanhan Liu and sse2.c written by hpa.
The patch was tested and benchmarked before submission on
a hardware that has AVX512 flags to support such instructions
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jim Kukunas <james.t.kukunas@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'lib/raid6/algos.c')
| -rw-r--r-- | lib/raid6/algos.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c index 975c6e0434bd..f5f090c52dd9 100644 --- a/lib/raid6/algos.c +++ b/lib/raid6/algos.c @@ -49,6 +49,10 @@ const struct raid6_calls * const raid6_algos[] = { &raid6_avx2x1, &raid6_avx2x2, #endif +#ifdef CONFIG_AS_AVX512 + &raid6_avx512x1, + &raid6_avx512x2, +#endif #endif #if defined(__x86_64__) && !defined(__arch_um__) &raid6_sse2x1, @@ -59,6 +63,11 @@ const struct raid6_calls * const raid6_algos[] = { &raid6_avx2x2, &raid6_avx2x4, #endif +#ifdef CONFIG_AS_AVX512 + &raid6_avx512x1, + &raid6_avx512x2, + &raid6_avx512x4, +#endif #endif #ifdef CONFIG_ALTIVEC &raid6_altivec1, |