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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 | |
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 |
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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)) | |
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22 | #else |
23 | # define NEED_PAE 0 | |
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24 | #endif |
25 | ||
26 | #ifdef CONFIG_X86_CMPXCHG64 | |
27 | # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) | |
28 | #else | |
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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 | ||
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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 |
4f30cb02 | 51 | #define NEED_PSE 0 |
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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 | |
b6734c35 | 76 | #define REQUIRED_MASK3 (NEED_NOPL) |
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77 | #define REQUIRED_MASK4 0 |
78 | #define REQUIRED_MASK5 0 | |
79 | #define REQUIRED_MASK6 0 | |
80 | #define REQUIRED_MASK7 0 | |
81 | ||
77ef50a5 | 82 | #endif /* ASM_X86__REQUIRED_FEATURES_H */ |