aboutsummaryrefslogtreecommitdiff
path: root/lib
diff options
context:
space:
mode:
authorDaniel Verkamp <dverkamp@chromium.org>2018-11-12 15:26:51 -0800
committerShaohua Li <shli@fb.com>2018-12-20 08:53:23 -0800
commit0437de4fa09fe59b57d12b785e4afb73b0f34c05 (patch)
tree62790298d1b4b31fc33ac70a3bc224abfadeeeed /lib
parent86919f9dd2dbb88bbbe4e381dc8e6b9e9a1b9eb5 (diff)
downloadlinux-stericsson-0437de4fa09fe59b57d12b785e4afb73b0f34c05.tar.gz
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: Daniel Verkamp <dverkamp@chromium.org> Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/raid6/algos.c76
1 files changed, 38 insertions, 38 deletions
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
index 5065b1e7e327..a753ff56670f 100644
--- a/lib/raid6/algos.c
+++ b/lib/raid6/algos.c
@@ -34,64 +34,64 @@ struct raid6_calls raid6_call;
EXPORT_SYMBOL_GPL(raid6_call);
const struct raid6_calls * const raid6_algos[] = {
-#if defined(__ia64__)
- &raid6_intx16,
- &raid6_intx32,
-#endif
#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
- &raid6_avx512x1,
&raid6_avx512x2,
+ &raid6_avx512x1,
#endif
-#endif
-#if defined(__x86_64__) && !defined(__arch_um__)
- &raid6_sse2x1,
- &raid6_sse2x2,
- &raid6_sse2x4,
#ifdef CONFIG_AS_AVX2
- &raid6_avx2x1,
&raid6_avx2x2,
- &raid6_avx2x4,
+ &raid6_avx2x1,
#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
- &raid6_avx512x1,
- &raid6_avx512x2,
&raid6_avx512x4,
+ &raid6_avx512x2,
+ &raid6_avx512x1,
+#endif
+#ifdef CONFIG_AS_AVX2
+ &raid6_avx2x4,
+ &raid6_avx2x2,
+ &raid6_avx2x1,
#endif
+ &raid6_sse2x4,
+ &raid6_sse2x2,
+ &raid6_sse2x1,
#endif
#ifdef CONFIG_ALTIVEC
- &raid6_altivec1,
- &raid6_altivec2,
- &raid6_altivec4,
- &raid6_altivec8,
- &raid6_vpermxor1,
- &raid6_vpermxor2,
- &raid6_vpermxor4,
&raid6_vpermxor8,
+ &raid6_vpermxor4,
+ &raid6_vpermxor2,
+ &raid6_vpermxor1,
+ &raid6_altivec8,
+ &raid6_altivec4,
+ &raid6_altivec2,
+ &raid6_altivec1,
#endif
#if defined(CONFIG_S390)
&raid6_s390vx8,
#endif
- &raid6_intx1,
- &raid6_intx2,
- &raid6_intx4,
- &raid6_intx8,
#ifdef CONFIG_KERNEL_MODE_NEON
- &raid6_neonx1,
- &raid6_neonx2,
- &raid6_neonx4,
&raid6_neonx8,
+ &raid6_neonx4,
+ &raid6_neonx2,
+ &raid6_neonx1,
+#endif
+#if defined(__ia64__)
+ &raid6_intx32,
+ &raid6_intx16,
#endif
+ &raid6_intx8,
+ &raid6_intx4,
+ &raid6_intx2,
+ &raid6_intx1,
NULL
};