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- #ifndef _ASM_X86_REQUIRED_FEATURES_H
- #define _ASM_X86_REQUIRED_FEATURES_H
- /* 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
- # define NEED_FPU 0
- #endif
- #if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
- # define NEED_PAE (1<<(X86_FEATURE_PAE & 31))
- #else
- # define NEED_PAE 0
- #endif
- #ifdef CONFIG_X86_CMPXCHG64
- # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31))
- #else
- # 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
- #if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64)
- # define NEED_NOPL (1<<(X86_FEATURE_NOPL & 31))
- #else
- # define NEED_NOPL 0
- #endif
- #ifdef CONFIG_X86_64
- #ifdef CONFIG_PARAVIRT
- /* Paravirtualized systems may not have PSE or PGE available */
- #define NEED_PSE 0
- #define NEED_PGE 0
- #else
- #define NEED_PSE (1<<(X86_FEATURE_PSE) & 31)
- #define NEED_PGE (1<<(X86_FEATURE_PGE) & 31)
- #endif
- #define NEED_MSR (1<<(X86_FEATURE_MSR & 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 (NEED_NOPL)
- #define REQUIRED_MASK4 0
- #define REQUIRED_MASK5 0
- #define REQUIRED_MASK6 0
- #define REQUIRED_MASK7 0
- #define REQUIRED_MASK8 0
- #define REQUIRED_MASK9 0
- #endif /* _ASM_X86_REQUIRED_FEATURES_H */
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