1 | #ifndef _ASM_X86_REQUIRED_FEATURES_H |
2 | #define _ASM_X86_REQUIRED_FEATURES_H |
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 | #else |
23 | # define NEED_PAE 0 |
24 | #endif |
25 | |
26 | #ifdef CONFIG_X86_CMPXCHG64 |
27 | # define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31)) |
28 | #else |
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 | # define NEED_3DNOW 0 |
39 | |
40 | #if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64) |
41 | # define NEED_NOPL (1<<(X86_FEATURE_NOPL & 31)) |
42 | #else |
43 | # define NEED_NOPL 0 |
44 | #endif |
45 | |
46 | #ifdef CONFIG_MATOM |
47 | # define NEED_MOVBE (1<<(X86_FEATURE_MOVBE & 31)) |
48 | #else |
49 | # define NEED_MOVBE 0 |
50 | #endif |
51 | |
52 | #ifdef CONFIG_X86_64 |
53 | #ifdef CONFIG_PARAVIRT_XXL |
54 | /* Paravirtualized systems may not have PSE or PGE available */ |
55 | #define NEED_PSE 0 |
56 | #define NEED_PGE 0 |
57 | #else |
58 | #define NEED_PSE (1<<(X86_FEATURE_PSE) & 31) |
59 | #define NEED_PGE (1<<(X86_FEATURE_PGE) & 31) |
60 | #endif |
61 | #define NEED_MSR (1<<(X86_FEATURE_MSR & 31)) |
62 | #define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31)) |
63 | #define NEED_XMM (1<<(X86_FEATURE_XMM & 31)) |
64 | #define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31)) |
65 | #define NEED_LM (1<<(X86_FEATURE_LM & 31)) |
66 | #else |
67 | #define NEED_PSE 0 |
68 | #define NEED_MSR 0 |
69 | #define NEED_PGE 0 |
70 | #define NEED_FXSR 0 |
71 | #define NEED_XMM 0 |
72 | #define NEED_XMM2 0 |
73 | #define NEED_LM 0 |
74 | #endif |
75 | |
76 | #define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\ |
77 | NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\ |
78 | NEED_XMM|NEED_XMM2) |
79 | #define SSE_MASK (NEED_XMM|NEED_XMM2) |
80 | |
81 | #define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW) |
82 | |
83 | #define REQUIRED_MASK2 0 |
84 | #define REQUIRED_MASK3 (NEED_NOPL) |
85 | #define REQUIRED_MASK4 (NEED_MOVBE) |
86 | #define REQUIRED_MASK5 0 |
87 | #define REQUIRED_MASK6 0 |
88 | #define REQUIRED_MASK7 0 |
89 | #define REQUIRED_MASK8 0 |
90 | #define REQUIRED_MASK9 0 |
91 | #define REQUIRED_MASK10 0 |
92 | #define REQUIRED_MASK11 0 |
93 | #define REQUIRED_MASK12 0 |
94 | #define REQUIRED_MASK13 0 |
95 | #define REQUIRED_MASK14 0 |
96 | #define REQUIRED_MASK15 0 |
97 | #define REQUIRED_MASK16 0 |
98 | #define REQUIRED_MASK17 0 |
99 | #define REQUIRED_MASK18 0 |
100 | #define REQUIRED_MASK19 0 |
101 | #define REQUIRED_MASK20 0 |
102 | #define REQUIRED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 21) |
103 | |
104 | #endif /* _ASM_X86_REQUIRED_FEATURES_H */ |
105 | |