linux-kernel - [PATCH 3/4] lib/raid6/test/Makefile: Add avx512 gen

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Date:	Tue,  2 Aug 2016 16:31:45 -0700
From:	Gayatri Kammela <gayatri.kammela@...el.com>
To:	linux-raid@...r.kernel.org
Cc:	shli@...nel.org, linux-kernel@...r.kernel.org, hpa@...or.com,
	james.t.kukunas@...ux.intel.com, fenghua.yu@...el.com,
	megha.dey@...ux.intel.com, ravi.v.shankar@...el.com,
	Gayatri Kammela <gayatri.kammela@...el.com>
Subject: [PATCH 3/4] lib/raid6/test/Makefile: Add avx512 gen_syndrome and recovery functions

Adding avx512 gen_syndrome and recovery functions so as to allow code to
be compiled and tested successfully in userspace.

This patch is tested in userspace and improvement in performace is
observed.

Cc: H. Peter Anvin <hpa@...or.com>
Cc: Jim Kukunas <james.t.kukunas@...ux.intel.com>
Cc: Fenghua Yu <fenghua.yu@...el.com>
Signed-off-by: Megha Dey <megha.dey@...ux.intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@...el.com>
---
 lib/raid6/test/Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index 29090f3..2c7b60e 100644
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -32,10 +32,13 @@ ifeq ($(ARCH),arm64)
 endif
 
 ifeq ($(IS_X86),yes)
-        OBJS   += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o
+        OBJS   += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o
         CFLAGS += $(shell echo "vpbroadcastb %xmm0, %ymm1" |	\
                     gcc -c -x assembler - >&/dev/null &&	\
                     rm ./-.o && echo -DCONFIG_AS_AVX2=1)
+	CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" |          \
+		    gcc -c -x assembler - >&/dev/null &&        \
+		    rm ./-.o && echo -DCONFIG_AS_AVX512=1)
 else ifeq ($(HAS_NEON),yes)
         OBJS   += neon.o neon1.o neon2.o neon4.o neon8.o
         CFLAGS += -DCONFIG_KERNEL_MODE_NEON=1
-- 
1.9.1