projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_REQUIRED_FEATURES_H |
| 2 | #define _ASM_X86_REQUIRED_FEATURES_H | |
| 23e5305d BG |
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)) | |
| 96a388de | 16 | #else |
| 23e5305d BG |
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)) | |
| 23e5305d BG |
22 | #else |
| 23 | # define NEED_PAE 0 | |
| f8096f92 JB |
24 | #endif |
| 25 | ||
| 26 | #ifdef CONFIG_X86_CMPXCHG64 | |
| 27 | # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) | |
| 28 | #else | |
| 23e5305d BG |
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 | ||
| b6734c35 PA |
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 | ||
| 23e5305d | 50 | #ifdef CONFIG_X86_64 |
| 5f241e65 JF |
51 | #ifdef CONFIG_PARAVIRT |
| 52 | /* Paravirtualized systems may not have PSE or PGE available */ | |
| 4f30cb02 | 53 | #define NEED_PSE 0 |
| 68509cdc | 54 | #define NEED_PGE 0 |
| 5f241e65 JF |
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)) | |
| 23e5305d BG |
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 | |
| b6734c35 | 82 | #define REQUIRED_MASK3 (NEED_NOPL) |
| 23e5305d BG |
83 | #define REQUIRED_MASK4 0 |
| 84 | #define REQUIRED_MASK5 0 | |
| 85 | #define REQUIRED_MASK6 0 | |
| 86 | #define REQUIRED_MASK7 0 | |
| bdc802dc PA |
87 | #define REQUIRED_MASK8 0 |
| 88 | #define REQUIRED_MASK9 0 | |
| 23e5305d | 89 | |
| 1965aae3 | 90 | #endif /* _ASM_X86_REQUIRED_FEATURES_H */ |