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Add AltiVec RAID-Z

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Implements the RAID-Z function using AltiVec SIMD.
This is basically the NEON code translated to AltiVec.

Note that the 'fletcher' algorithm requires 64-bits
operations, and the initial implementations of AltiVec
(PPC74xx a.k.a. G4, PPC970 a.k.a. G5) only has up to
32-bits operations, so no 'fletcher'.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Romain Dolbeau <romain.dolbeau@european-processor-initiative.eu>
Closes #9539
This commit is contained in:
Romain Dolbeau
2020-01-23 20:01:24 +01:00
committed by Brian Behlendorf
parent 1a69856034
commit 35b07497c6
12 changed files with 5200 additions and 1 deletions
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module/zfs/vdev_raidz_math.c
+3
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@@ -67,6 +67,9 @@ const raidz_impl_ops_t *raidz_all_maths[] = {
&vdev_raidz_aarch64_neon_impl,
&vdev_raidz_aarch64_neonx2_impl,
#endif
#if defined(__powerpc__)
&vdev_raidz_powerpc_altivec_impl,
#endif
};
/* Indicate that benchmark has been completed */