diff options
| author | Brian Gerst <bgerst@didntduck.org> | 2007-10-20 13:41:41 -0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-23 22:37:24 +0200 |
| commit | 23e5305d93801fca4ff2ff4b94bdf49e24c96a5e (patch) | |
| tree | 14cc94a5a1eebc026152cb374a5fcbc6b8e64426 /include/asm-x86/required-features.h | |
| parent | 77129c5e3ddba94b6ab7223504b39956f653f376 (diff) | |
| download | lwn-23e5305d93801fca4ff2ff4b94bdf49e24c96a5e.tar.gz lwn-23e5305d93801fca4ff2ff4b94bdf49e24c96a5e.zip | |
x86: merge required-features.h
Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Diffstat (limited to 'include/asm-x86/required-features.h')
| -rw-r--r-- | include/asm-x86/required-features.h | 73 |
1 files changed, 70 insertions, 3 deletions
diff --git a/include/asm-x86/required-features.h b/include/asm-x86/required-features.h index 8b64f3ea2b78..7400d3ad75c6 100644 --- a/include/asm-x86/required-features.h +++ b/include/asm-x86/required-features.h @@ -1,5 +1,72 @@ -#ifdef CONFIG_X86_32 -# include "required-features_32.h" +#ifndef _ASM_REQUIRED_FEATURES_H +#define _ASM_REQUIRED_FEATURES_H 1 + +/* Define minimum CPUID feature set for kernel These bits are checked + really early to actually display a visible error message before the + kernel dies. Make sure to assign features to the proper mask! + + Some requirements that are not in CPUID yet are also in the + CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too. + + The real information is in arch/x86/Kconfig.cpu, this just converts + the CONFIGs into a bitmask */ + +#ifndef CONFIG_MATH_EMULATION +# define NEED_FPU (1<<(X86_FEATURE_FPU & 31)) #else -# include "required-features_64.h" +# define NEED_FPU 0 +#endif + +#if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64) +# define NEED_PAE (1<<(X86_FEATURE_PAE & 31)) +# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) +#else +# define NEED_PAE 0 +# define NEED_CX8 0 +#endif + +#if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64) +# define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31)) +#else +# define NEED_CMOV 0 +#endif + +#ifdef CONFIG_X86_USE_3DNOW +# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31)) +#else +# define NEED_3DNOW 0 +#endif + +#ifdef CONFIG_X86_64 +#define NEED_PSE (1<<(X86_FEATURE_PSE & 31)) +#define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) +#define NEED_PGE (1<<(X86_FEATURE_PGE & 31)) +#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) +#define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) +#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) +#define NEED_LM (1<<(X86_FEATURE_LM & 31)) +#else +#define NEED_PSE 0 +#define NEED_MSR 0 +#define NEED_PGE 0 +#define NEED_FXSR 0 +#define NEED_XMM 0 +#define NEED_XMM2 0 +#define NEED_LM 0 +#endif + +#define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ + NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ + NEED_XMM|NEED_XMM2) +#define SSE_MASK (NEED_XMM|NEED_XMM2) + +#define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) + +#define REQUIRED_MASK2 0 +#define REQUIRED_MASK3 0 +#define REQUIRED_MASK4 0 +#define REQUIRED_MASK5 0 +#define REQUIRED_MASK6 0 +#define REQUIRED_MASK7 0 + #endif |