diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-06-10 15:04:40 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-06 18:54:15 -0700 |
| commit | 18f5426fb7f2be5e3112ed301b52e2ea92d3e3cd (patch) | |
| tree | f66153a8cb3f19e1aedf76f084528065d7ff6a87 /arch | |
| parent | 485fafb3d0a5b0886abfaa1cfc7641d9fc8e3d97 (diff) | |
| download | linux-3.10-18f5426fb7f2be5e3112ed301b52e2ea92d3e3cd.tar.gz linux-3.10-18f5426fb7f2be5e3112ed301b52e2ea92d3e3cd.tar.bz2 linux-3.10-18f5426fb7f2be5e3112ed301b52e2ea92d3e3cd.zip | |
powerpc: Add AT_HWCAP2 to indicate V.CRYPTO category support
commit dd58a092c4202f2bd490adab7285b3ff77f8e467 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/uapi/asm/cputable.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h index 5b7657959fa..de2c0e4ee1a 100644 --- a/arch/powerpc/include/uapi/asm/cputable.h +++ b/arch/powerpc/include/uapi/asm/cputable.h @@ -41,5 +41,6 @@ #define PPC_FEATURE2_EBB 0x10000000 #define PPC_FEATURE2_ISEL 0x08000000 #define PPC_FEATURE2_TAR 0x04000000 +#define PPC_FEATURE2_VEC_CRYPTO 0x02000000 #endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */ diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 2a45d0f0438..b2dc4552285 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -105,7 +105,8 @@ 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) |