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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)) | |
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)) | |
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 | ||
96a388de | 72 | #endif |