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 #define NEED_PSE 0 52 #define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) 53 #define NEED_PGE (1<<(X86_FEATURE_PGE & 31)) 54 #define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) 55 #define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) 56 #define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) 57 #define NEED_LM (1<<(X86_FEATURE_LM & 31)) 58 #else 59 #define NEED_PSE 0 60 #define NEED_MSR 0 61 #define NEED_PGE 0 62 #define NEED_FXSR 0 63 #define NEED_XMM 0 64 #define NEED_XMM2 0 65 #define NEED_LM 0 66 #endif 67 68 #define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ 69 NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ 70 NEED_XMM|NEED_XMM2) 71 #define SSE_MASK (NEED_XMM|NEED_XMM2) 72 73 #define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) 74 75 #define REQUIRED_MASK2 0 76 #define REQUIRED_MASK3 (NEED_NOPL) 77 #define REQUIRED_MASK4 0 78 #define REQUIRED_MASK5 0 79 #define REQUIRED_MASK6 0 80 #define REQUIRED_MASK7 0 81 82 #endif /* _ASM_X86_REQUIRED_FEATURES_H */ 83