Commit 0437de4f authored by Daniel Verkamp's avatar Daniel Verkamp Committed by Shaohua Li

lib/raid6: sort algos in rough performance order

Sort the list of RAID6 algorithms in roughly decreasing order of
expected performance: newer instruction sets first (within each
architecture) and wider unrollings first.

This doesn't make any difference right now, since all functions are
benchmarked; a follow-up change will make use of this by optionally
choosing the first valid function rather than testing all of them.

The Itanium raid6_intx{16,32} entries are also moved down to be near the
other raid6_intx entries for clarity.
Signed-off-by: default avatarDaniel Verkamp <dverkamp@chromium.org>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
parent 86919f9d
...@@ -34,64 +34,64 @@ struct raid6_calls raid6_call; ...@@ -34,64 +34,64 @@ struct raid6_calls raid6_call;
EXPORT_SYMBOL_GPL(raid6_call); EXPORT_SYMBOL_GPL(raid6_call);
const struct raid6_calls * const raid6_algos[] = { const struct raid6_calls * const raid6_algos[] = {
#if defined(__ia64__)
&raid6_intx16,
&raid6_intx32,
#endif
#if defined(__i386__) && !defined(__arch_um__) #if defined(__i386__) && !defined(__arch_um__)
&raid6_mmxx1,
&raid6_mmxx2,
&raid6_sse1x1,
&raid6_sse1x2,
&raid6_sse2x1,
&raid6_sse2x2,
#ifdef CONFIG_AS_AVX2
&raid6_avx2x1,
&raid6_avx2x2,
#endif
#ifdef CONFIG_AS_AVX512 #ifdef CONFIG_AS_AVX512
&raid6_avx512x1,
&raid6_avx512x2, &raid6_avx512x2,
&raid6_avx512x1,
#endif #endif
#endif
#if defined(__x86_64__) && !defined(__arch_um__)
&raid6_sse2x1,
&raid6_sse2x2,
&raid6_sse2x4,
#ifdef CONFIG_AS_AVX2 #ifdef CONFIG_AS_AVX2
&raid6_avx2x1,
&raid6_avx2x2, &raid6_avx2x2,
&raid6_avx2x4, &raid6_avx2x1,
#endif #endif
&raid6_sse2x2,
&raid6_sse2x1,
&raid6_sse1x2,
&raid6_sse1x1,
&raid6_mmxx2,
&raid6_mmxx1,
#endif
#if defined(__x86_64__) && !defined(__arch_um__)
#ifdef CONFIG_AS_AVX512 #ifdef CONFIG_AS_AVX512
&raid6_avx512x1,
&raid6_avx512x2,
&raid6_avx512x4, &raid6_avx512x4,
&raid6_avx512x2,
&raid6_avx512x1,
#endif
#ifdef CONFIG_AS_AVX2
&raid6_avx2x4,
&raid6_avx2x2,
&raid6_avx2x1,
#endif #endif
&raid6_sse2x4,
&raid6_sse2x2,
&raid6_sse2x1,
#endif #endif
#ifdef CONFIG_ALTIVEC #ifdef CONFIG_ALTIVEC
&raid6_altivec1,
&raid6_altivec2,
&raid6_altivec4,
&raid6_altivec8,
&raid6_vpermxor1,
&raid6_vpermxor2,
&raid6_vpermxor4,
&raid6_vpermxor8, &raid6_vpermxor8,
&raid6_vpermxor4,
&raid6_vpermxor2,
&raid6_vpermxor1,
&raid6_altivec8,
&raid6_altivec4,
&raid6_altivec2,
&raid6_altivec1,
#endif #endif
#if defined(CONFIG_S390) #if defined(CONFIG_S390)
&raid6_s390vx8, &raid6_s390vx8,
#endif #endif
&raid6_intx1,
&raid6_intx2,
&raid6_intx4,
&raid6_intx8,
#ifdef CONFIG_KERNEL_MODE_NEON #ifdef CONFIG_KERNEL_MODE_NEON
&raid6_neonx1,
&raid6_neonx2,
&raid6_neonx4,
&raid6_neonx8, &raid6_neonx8,
&raid6_neonx4,
&raid6_neonx2,
&raid6_neonx1,
#endif
#if defined(__ia64__)
&raid6_intx32,
&raid6_intx16,
#endif #endif
&raid6_intx8,
&raid6_intx4,
&raid6_intx2,
&raid6_intx1,
NULL NULL
}; };
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment