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| Rev | Author | Line No. | Line |
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| 1408 | serge | 1 | #ifndef _ASM_X86_REQUIRED_FEATURES_H |
| 2 | #define _ASM_X86_REQUIRED_FEATURES_H |
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| 3 | |||
| 4 | /* Define minimum CPUID feature set for kernel These bits are checked |
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| 5 | really early to actually display a visible error message before the |
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| 6 | kernel dies. Make sure to assign features to the proper mask! |
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| 7 | |||
| 8 | Some requirements that are not in CPUID yet are also in the |
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| 9 | CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too. |
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| 10 | |||
| 11 | The real information is in arch/x86/Kconfig.cpu, this just converts |
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| 12 | the CONFIGs into a bitmask */ |
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| 13 | |||
| 14 | #ifndef CONFIG_MATH_EMULATION |
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| 15 | # define NEED_FPU (1<<(X86_FEATURE_FPU & 31)) |
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| 16 | #else |
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| 17 | # define NEED_FPU 0 |
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| 18 | #endif |
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| 19 | |||
| 20 | #if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64) |
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| 21 | # define NEED_PAE (1<<(X86_FEATURE_PAE & 31)) |
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| 22 | #else |
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| 23 | # define NEED_PAE 0 |
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| 24 | #endif |
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| 25 | |||
| 26 | #ifdef CONFIG_X86_CMPXCHG64 |
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| 27 | # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) |
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| 28 | #else |
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| 29 | # define NEED_CX8 0 |
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| 30 | #endif |
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| 31 | |||
| 32 | #if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64) |
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| 33 | # define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31)) |
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| 34 | #else |
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| 35 | # define NEED_CMOV 0 |
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| 36 | #endif |
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| 37 | |||
| 38 | #ifdef CONFIG_X86_USE_3DNOW |
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| 39 | # define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31)) |
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| 40 | #else |
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| 41 | # define NEED_3DNOW 0 |
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| 42 | #endif |
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| 43 | |||
| 44 | #if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64) |
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| 45 | # define NEED_NOPL (1<<(X86_FEATURE_NOPL & 31)) |
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| 46 | #else |
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| 47 | # define NEED_NOPL 0 |
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| 48 | #endif |
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| 49 | |||
| 50 | #ifdef CONFIG_X86_64 |
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| 51 | #ifdef CONFIG_PARAVIRT |
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| 52 | /* Paravirtualized systems may not have PSE or PGE available */ |
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| 53 | #define NEED_PSE 0 |
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| 54 | #define NEED_PGE 0 |
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| 55 | #else |
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| 56 | #define NEED_PSE (1<<(X86_FEATURE_PSE) & 31) |
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| 57 | #define NEED_PGE (1<<(X86_FEATURE_PGE) & 31) |
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| 58 | #endif |
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| 59 | #define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) |
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| 60 | #define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) |
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| 61 | #define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) |
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| 62 | #define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) |
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| 63 | #define NEED_LM (1<<(X86_FEATURE_LM & 31)) |
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| 64 | #else |
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| 65 | #define NEED_PSE 0 |
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| 66 | #define NEED_MSR 0 |
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| 67 | #define NEED_PGE 0 |
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| 68 | #define NEED_FXSR 0 |
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| 69 | #define NEED_XMM 0 |
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| 70 | #define NEED_XMM2 0 |
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| 71 | #define NEED_LM 0 |
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| 72 | #endif |
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| 73 | |||
| 74 | #define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ |
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| 75 | NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ |
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| 76 | NEED_XMM|NEED_XMM2) |
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| 77 | #define SSE_MASK (NEED_XMM|NEED_XMM2) |
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| 78 | |||
| 79 | #define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) |
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| 80 | |||
| 81 | #define REQUIRED_MASK2 0 |
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| 82 | #define REQUIRED_MASK3 (NEED_NOPL) |
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| 83 | #define REQUIRED_MASK4 0 |
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| 84 | #define REQUIRED_MASK5 0 |
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| 85 | #define REQUIRED_MASK6 0 |
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| 86 | #define REQUIRED_MASK7 0 |
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| 3031 | serge | 87 | #define REQUIRED_MASK8 0 |
| 88 | #define REQUIRED_MASK9 0 |
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| 1408 | serge | 89 | |
| 90 | #endif /* _ASM_X86_REQUIRED_FEATURES_H */ |