1 #ifndef _ASM_REQUIRED_FEATURES_H 2 #define _ASM_REQUIRED_FEATURES_H 1 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 # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) 23 #else 24 # define NEED_PAE 0 25 # define NEED_CX8 0 26 #endif 27 28 #if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64) 29 # define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31)) 30 #else 31 # define NEED_CMOV 0 32 #endif 33 34 #ifdef CONFIG_X86_USE_3DNOW 35 # define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31)) 36 #else 37 # define NEED_3DNOW 0 38 #endif 39 40 #ifdef CONFIG_X86_64 41 #define NEED_PSE (1<<(X86_FEATURE_PSE & 31)) 42 #define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) 43 #define NEED_PGE (1<<(X86_FEATURE_PGE & 31)) 44 #define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) 45 #define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) 46 #define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) 47 #define NEED_LM (1<<(X86_FEATURE_LM & 31)) 48 #else 49 #define NEED_PSE 0 50 #define NEED_MSR 0 51 #define NEED_PGE 0 52 #define NEED_FXSR 0 53 #define NEED_XMM 0 54 #define NEED_XMM2 0 55 #define NEED_LM 0 56 #endif 57 58 #define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ 59 NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ 60 NEED_XMM|NEED_XMM2) 61 #define SSE_MASK (NEED_XMM|NEED_XMM2) 62 63 #define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) 64 65 #define REQUIRED_MASK2 0 66 #define REQUIRED_MASK3 0 67 #define REQUIRED_MASK4 0 68 #define REQUIRED_MASK5 0 69 #define REQUIRED_MASK6 0 70 #define REQUIRED_MASK7 0 71 72 #endif 73