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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-06-10 07:04:40 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-06-11 08:31:20 +0200
commitdd58a092c4202f2bd490adab7285b3ff77f8e467 (patch)
tree40bc4732fdc5b96a146cb7e2e2d6070f85ed7009 /arch/powerpc/kernel/cputable.c
parentMerge git://www.linux-watchdog.org/linux-watchdog (diff)
downloadlinux-dd58a092c4202f2bd490adab7285b3ff77f8e467.tar.xz
linux-dd58a092c4202f2bd490adab7285b3ff77f8e467.zip
powerpc: Add AT_HWCAP2 to indicate V.CRYPTO category support
The Vector Crypto category instructions are supported by current POWER8 chips, advertise them to userspace using a specific bit to properly differentiate with chips of the same architecture level that might not have them. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@vger.kernel.org> [v3.10+]
Diffstat (limited to 'arch/powerpc/kernel/cputable.c')
-rw-r--r--arch/powerpc/kernel/cputable.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index c1faade6506d..11da04a4625a 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -109,7 +109,8 @@ extern void __restore_cpu_e6500(void);
PPC_FEATURE_PSERIES_PERFMON_COMPAT)
#define COMMON_USER2_POWER8 (PPC_FEATURE2_ARCH_2_07 | \
PPC_FEATURE2_HTM_COMP | PPC_FEATURE2_DSCR | \
- PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR)
+ PPC_FEATURE2_ISEL | PPC_FEATURE2_TAR | \
+ PPC_FEATURE2_VEC_CRYPTO)
#define COMMON_USER_PA6T (COMMON_USER_PPC64 | PPC_FEATURE_PA6T |\
PPC_FEATURE_TRUE_LE | \
PPC_FEATURE_HAS_ALTIVEC_COMP)