diff options
Diffstat (limited to 'include/asm-i386/required-features.h')
| -rw-r--r-- | include/asm-i386/required-features.h | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/include/asm-i386/required-features.h b/include/asm-i386/required-features.h index 9db866c1e64c..65848a007050 100644 --- a/include/asm-i386/required-features.h +++ b/include/asm-i386/required-features.h @@ -3,32 +3,53 @@ /* Define minimum CPUID feature set for kernel These bits are checked really early to actually display a visible error message before the - kernel dies. Only add word 0 bits here + 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 mode which is checked too. + CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too. The real information is in arch/i386/Kconfig.cpu, this just converts the CONFIGs into a bitmask */ +#ifndef CONFIG_MATH_EMULATION +# define NEED_FPU (1<<(X86_FEATURE_FPU & 31)) +#else +# define NEED_FPU 0 +#endif + #ifdef CONFIG_X86_PAE -#define NEED_PAE (1<<X86_FEATURE_PAE) +# define NEED_PAE (1<<(X86_FEATURE_PAE & 31)) #else -#define NEED_PAE 0 +# define NEED_PAE 0 #endif #ifdef CONFIG_X86_CMOV -#define NEED_CMOV (1<<X86_FEATURE_CMOV) +# define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31)) #else -#define NEED_CMOV 0 +# define NEED_CMOV 0 #endif #ifdef CONFIG_X86_CMPXCHG64 -#define NEED_CMPXCHG64 (1<<X86_FEATURE_CX8) +# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) +#else +# define NEED_CX8 0 +#endif + +#define REQUIRED_MASK0 (NEED_FPU|NEED_PAE|NEED_CMOV|NEED_CX8) + +#ifdef CONFIG_X86_USE_3DNOW +# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31)) #else -#define NEED_CMPXCHG64 0 +# define NEED_3DNOW 0 #endif -#define REQUIRED_MASK1 (NEED_PAE|NEED_CMOV|NEED_CMPXCHG64) +#define REQUIRED_MASK1 (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 |