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Ard Biesheuvel 0e833e697b md/raid6: delta syndrome for ARM NEON 
This implements XOR syndrome calculation using NEON intrinsics.
As before, the module can be built for ARM and arm64 from the
same source.

Relative performance on a Cortex-A57 based system:

  raid6: int64x1  gen()   905 MB/s
  raid6: int64x1  xor()   881 MB/s
  raid6: int64x2  gen()  1343 MB/s
  raid6: int64x2  xor()  1286 MB/s
  raid6: int64x4  gen()  1896 MB/s
  raid6: int64x4  xor()  1321 MB/s
  raid6: int64x8  gen()  1773 MB/s
  raid6: int64x8  xor()  1165 MB/s
  raid6: neonx1   gen()  1834 MB/s
  raid6: neonx1   xor()  1278 MB/s
  raid6: neonx2   gen()  2528 MB/s
  raid6: neonx2   xor()  1942 MB/s
  raid6: neonx4   gen()  2888 MB/s
  raid6: neonx4   xor()  2334 MB/s
  raid6: neonx8   gen()  2957 MB/s
  raid6: neonx8   xor()  2232 MB/s
  raid6: using algorithm neonx8 gen() 2957 MB/s
  raid6: .... xor() 2232 MB/s, rmw enabled

Cc: Markus Stockhausen <stockhausen@collogia.de>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: NeilBrown <neilb@suse.com>
2015-08-31 19:29:05 +02:00
..
test md/raid6 algorithms: improve test program 2015-04-22 08:00:42 +10:00
.gitignore lib/raid6: add ARM-NEON accelerated syndrome calculation 2013-07-08 22:09:18 +01:00
algos.c md/raid6 algorithms: delta syndrome functions 2015-04-22 08:00:41 +10:00
altivec.uc md/raid6 algorithms: delta syndrome functions 2015-04-22 08:00:41 +10:00
avx2.c md/raid6 algorithms: delta syndrome functions 2015-04-22 08:00:41 +10:00
int.uc md/raid6 algorithms: xor_syndrome() for generic int 2015-04-22 08:00:42 +10:00
Makefile powerpc: Only use -mabi=altivec if toolchain supports it 2015-06-11 17:33:05 +10:00
mktables.c lib/raid6: Add SSSE3 optimized recovery functions 2012-05-22 13:54:18 +10:00
mmx.c md/raid6 algorithms: delta syndrome functions 2015-04-22 08:00:41 +10:00
neon.c md/raid6: delta syndrome for ARM NEON 2015-08-31 19:29:05 +02:00
neon.uc md/raid6: delta syndrome for ARM NEON 2015-08-31 19:29:05 +02:00
recov.c lib/raid6: fix sparse warnings in recovery functions 2012-05-28 14:10:22 +10:00
recov_avx2.c x86/raid6: correctly check for assembler capabilities 2015-02-04 08:35:51 +11:00
recov_ssse3.c x86/raid6: correctly check for assembler capabilities 2015-02-04 08:35:51 +11:00
sse1.c md/raid6 algorithms: delta syndrome functions 2015-04-22 08:00:41 +10:00
sse2.c md/raid6 algorithms: xor_syndrome() for SSE2 2015-04-22 08:00:42 +10:00
tilegx.uc md/raid6 algorithms: delta syndrome functions 2015-04-22 08:00:41 +10:00
unroll.awk Merge branch 'async' of macbook:git/btrfs-unstable 2010-08-09 10:36:44 +01:00
x86.h x86/fpu: Rename i387.h to fpu/api.h 2015-05-19 15:47:30 +02:00