diff options
| author | Andreas Herrmann <andreas.herrmann3@amd.com> | 2012-10-19 04:58:13 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-13 14:22:28 -0500 |
| commit | 193f3fcb3ab769bab4a2b9fa181eef3e5699a352 (patch) | |
| tree | 8afed963459adc5cd706eed124d903e444b01a9f /arch/x86/include/asm/cpufeature.h | |
| parent | 77b67063bb6bce6d475e910d3b886a606d0d91f7 (diff) | |
x86: Add cpu_has_topoext
Introduce cpu_has_topoext to check for AMD's CPUID topology extensions
support. It indicates support for
CPUID Fn8000_001D_EAX_x[N:0]-CPUID Fn8000_001E_EDX
See AMD's CPUID Specification, Publication # 25481
(as of Rev. 2.34 September 2010)
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/20121019085813.GD26718@alberich
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include/asm/cpufeature.h')
| -rw-r--r-- | arch/x86/include/asm/cpufeature.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 8c297aa53eef..c22a492daf57 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h | |||
| @@ -311,6 +311,7 @@ extern const char * const x86_power_flags[32]; | |||
| 311 | #define cpu_has_cx8 boot_cpu_has(X86_FEATURE_CX8) | 311 | #define cpu_has_cx8 boot_cpu_has(X86_FEATURE_CX8) |
| 312 | #define cpu_has_cx16 boot_cpu_has(X86_FEATURE_CX16) | 312 | #define cpu_has_cx16 boot_cpu_has(X86_FEATURE_CX16) |
| 313 | #define cpu_has_eager_fpu boot_cpu_has(X86_FEATURE_EAGER_FPU) | 313 | #define cpu_has_eager_fpu boot_cpu_has(X86_FEATURE_EAGER_FPU) |
| 314 | #define cpu_has_topoext boot_cpu_has(X86_FEATURE_TOPOEXT) | ||
| 314 | 315 | ||
| 315 | #if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64) | 316 | #if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64) |
| 316 | # define cpu_has_invlpg 1 | 317 | # define cpu_has_invlpg 1 |