diff options
| -rw-r--r-- | arch/x86/include/asm/cpufeature.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/cpufeatures.h | 7 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 10 |
3 files changed, 14 insertions, 4 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index b953fb74aba6..1d02ad682b20 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -27,6 +27,7 @@ enum cpuid_leafs CPUID_6_EAX, CPUID_8000_000A_EDX, CPUID_7_ECX, + CPUID_8000_0007_EBX, }; #ifdef CONFIG_X86_FEATURE_NAMES diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index f19b9010764f..205ce70c1d6c 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -12,7 +12,7 @@ /* * Defines x86 CPU feature bits */ -#define NCAPINTS 17 /* N 32-bit words worth of info */ +#define NCAPINTS 18 /* N 32-bit words worth of info */ #define NBUGINTS 1 /* N 32-bit bug flags */ /* @@ -280,6 +280,11 @@ #define X86_FEATURE_PKU (16*32+ 3) /* Protection Keys for Userspace */ #define X86_FEATURE_OSPKE (16*32+ 4) /* OS Protection Keys Enable */ +/* AMD-defined CPU features, CPUID level 0x80000007 (ebx), word 17 */ +#define X86_FEATURE_OVERFLOW_RECOV (17*32+0) /* MCA overflow recovery support */ +#define X86_FEATURE_SUCCOR (17*32+1) /* Uncorrectable error containment and recovery */ +#define X86_FEATURE_SMCA (17*32+3) /* Scalable MCA */ + /* * BUG word(s) */ diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index d6a7b6f214d4..814276d0eed1 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -741,6 +741,13 @@ void get_cpu_cap(struct cpuinfo_x86 *c) } } + if (c->extended_cpuid_level >= 0x80000007) { + cpuid(0x80000007, &eax, &ebx, &ecx, &edx); + + c->x86_capability[CPUID_8000_0007_EBX] = ebx; + c->x86_power = edx; + } + if (c->extended_cpuid_level >= 0x80000008) { cpuid(0x80000008, &eax, &ebx, &ecx, &edx); @@ -753,9 +760,6 @@ void get_cpu_cap(struct cpuinfo_x86 *c) c->x86_phys_bits = 36; #endif - if (c->extended_cpuid_level >= 0x80000007) - c->x86_power = cpuid_edx(0x80000007); - if (c->extended_cpuid_level >= 0x8000000a) c->x86_capability[CPUID_8000_000A_EDX] = cpuid_edx(0x8000000a); |