1#ifndef _ASM_X86_REQUIRED_FEATURES_H 2#define _ASM_X86_REQUIRED_FEATURES_H 3 4/* Define minimum CPUID feature set for kernel These bits are checked 5 really early to actually display a visible error message before the 6 kernel dies. Make sure to assign features to the proper mask! 7 8 Some requirements that are not in CPUID yet are also in the 9 CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too. 10 11 The real information is in arch/x86/Kconfig.cpu, this just converts 12 the CONFIGs into a bitmask */ 13 14#ifndef CONFIG_MATH_EMULATION 15# define NEED_FPU (1<<(X86_FEATURE_FPU & 31)) 16#else 17# define NEED_FPU 0 18#endif 19 20#if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64) 21# define NEED_PAE (1<<(X86_FEATURE_PAE & 31)) 22#else 23# define NEED_PAE 0 24#endif 25 26#ifdef CONFIG_X86_CMPXCHG64 27# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) 28#else 29# define NEED_CX8 0 30#endif 31 32#if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64) 33# define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31)) 34#else 35# define NEED_CMOV 0 36#endif 37 38#ifdef CONFIG_X86_USE_3DNOW 39# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31)) 40#else 41# define NEED_3DNOW 0 42#endif 43 44#if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64) 45# define NEED_NOPL (1<<(X86_FEATURE_NOPL & 31)) 46#else 47# define NEED_NOPL 0 48#endif 49 50#ifdef CONFIG_X86_64 51#ifdef CONFIG_PARAVIRT 52/* Paravirtualized systems may not have PSE or PGE available */ 53#define NEED_PSE 0 54#define NEED_PGE 0 55#else 56#define NEED_PSE (1<<(X86_FEATURE_PSE) & 31) 57#define NEED_PGE (1<<(X86_FEATURE_PGE) & 31) 58#endif 59#define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) 60#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) 61#define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) 62#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) 63#define NEED_LM (1<<(X86_FEATURE_LM & 31)) 64#else 65#define NEED_PSE 0 66#define NEED_MSR 0 67#define NEED_PGE 0 68#define NEED_FXSR 0 69#define NEED_XMM 0 70#define NEED_XMM2 0 71#define NEED_LM 0 72#endif 73 74#define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ 75 NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ 76 NEED_XMM|NEED_XMM2) 77#define SSE_MASK (NEED_XMM|NEED_XMM2) 78 79#define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) 80 81#define REQUIRED_MASK2 0 82#define REQUIRED_MASK3 (NEED_NOPL) 83#define REQUIRED_MASK4 0 84#define REQUIRED_MASK5 0 85#define REQUIRED_MASK6 0 86#define REQUIRED_MASK7 0 87#define REQUIRED_MASK8 0 88#define REQUIRED_MASK9 0 89 90#endif /* _ASM_X86_REQUIRED_FEATURES_H */ 91