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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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lib/libzpool/Makefile.am
+6
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@@ -130,6 +130,7 @@ KERNEL_C = \
vdev_raidz_math_scalar.c \
vdev_raidz_math_sse2.c \
vdev_raidz_math_ssse3.c \
vdev_raidz_math_powerpc_altivec.c \
vdev_removal.c \
vdev_root.c \
vdev_trim.c \
@@ -201,3 +202,8 @@ libzpool_la_LIBADD += $(ZLIB) -ldl
libzpool_la_LDFLAGS = -pthread -version-info 2:0:0
EXTRA_DIST = $(USER_C)
if TARGET_CPU_POWERPC
vdev_raidz_math_powerpc_altivec.$(OBJEXT): CFLAGS += -maltivec
vdev_raidz_math_powerpc_altivec.l$(OBJEXT): CFLAGS += -maltivec
endif