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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2013-05-16 17:20:32 +0200
committerArd Biesheuvel <ard.biesheuvel@linaro.org>2013-07-08 22:09:18 +0100
commit7d11965ddb9b9b1e0a5d13c58345ada1ccbc663b (patch)
tree9aec7ff11372f0194f288c13c7c83ff6ef40c87b /include/linux/raid
parent01956597cbc46df072f20f90a40eebe356200c38 (diff)
lib/raid6: add ARM-NEON accelerated syndrome calculation
Rebased/reworked a patch contributed by Rob Herring that uses NEON intrinsics to perform the RAID-6 syndrome calculations. It uses the existing unroll.awk code to generate several unrolled versions of which the best performing one is selected at boot time. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Cc: hpa@linux.intel.com
Diffstat (limited to 'include/linux/raid')
-rw-r--r--include/linux/raid/pq.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 8dfaa2ce2e95..0f424698064f 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -114,6 +114,11 @@ extern const struct raid6_recov_calls raid6_recov_intx1;
extern const struct raid6_recov_calls raid6_recov_ssse3;
extern const struct raid6_recov_calls raid6_recov_avx2;
+extern const struct raid6_calls raid6_neonx1;
+extern const struct raid6_calls raid6_neonx2;
+extern const struct raid6_calls raid6_neonx4;
+extern const struct raid6_calls raid6_neonx8;
+
/* Algorithm list */
extern const struct raid6_calls * const raid6_algos[];
extern const struct raid6_recov_calls *const raid6_recov_algos[];