Messages in this thread Patch in this message | | | Subject | [PATCH 9/15 -tip] x86: Add cpufeature for Hardware configuration | From | Jaswinder Singh Rajput <> | Date | Mon, 11 May 2009 22:21:21 +0530 |
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X86_FEATURE_HW_CFG : MSRC001_0015 Hardware Configuration Register (HWCR)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> --- arch/x86/include/asm/cpufeature.h | 1 + arch/x86/kernel/cpu/amd.c | 4 ++++ 2 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 6eb9134..13050e9 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -163,6 +163,7 @@ #define X86_FEATURE_FSB_FREQ (7*32+ 8) /* Scaleable bus speed */ #define X86_FEATURE_MISC (7*32+ 9) /* Miscellaneous features */ #define X86_FEATURE_PLATFORM (7*32+ 10) /* Platform feature */ +#define X86_FEATURE_HW_CFG (7*32+ 11) /* Hardware configuration */ /* Virtualization flags: Linux defined */ #define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index e2fe8e2..b2bccd2 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -478,6 +478,10 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) #endif /* Set cpufeatures for miscellaneous MSRs */ + if (c->x86 >= 7) { /* K7+ */ + /* MSRC001_0015 Hardware Configuration Register (HWCR) */ + set_cpu_cap(c, X86_FEATURE_HW_CFG); + } if (c->x86 >= 0x10) { /* fam10h+ */ /* MSRC001_1022 Data Cache Configuration (DC_CFG) */ set_cpu_cap(c, X86_FEATURE_CACHE_CTL); -- 1.6.0.6
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