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Vegard Nossum77ef50a2008-06-18 17:08:48 +02001#ifndef ASM_X86__REQUIRED_FEATURES_H
2#define ASM_X86__REQUIRED_FEATURES_H
Brian Gerst23e53052007-10-20 13:41:41 -04003
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))
Thomas Gleixner96a388d2007-10-11 11:20:03 +020016#else
Brian Gerst23e53052007-10-20 13:41:41 -040017# 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))
Brian Gerst23e53052007-10-20 13:41:41 -040022#else
23# define NEED_PAE 0
Jan Beulichf8096f92008-04-22 16:27:29 +010024#endif
25
26#ifdef CONFIG_X86_CMPXCHG64
27# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31))
28#else
Brian Gerst23e53052007-10-20 13:41:41 -040029# 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
H. Peter Anvinb6734c32008-08-18 17:39:32 -070044#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
Brian Gerst23e53052007-10-20 13:41:41 -040050#ifdef CONFIG_X86_64
Jeremy Fitzhardinge4f30cb02008-06-25 00:19:21 -040051#define NEED_PSE 0
Brian Gerst23e53052007-10-20 13:41:41 -040052#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
H. Peter Anvinb6734c32008-08-18 17:39:32 -070076#define REQUIRED_MASK3 (NEED_NOPL)
Brian Gerst23e53052007-10-20 13:41:41 -040077#define REQUIRED_MASK4 0
78#define REQUIRED_MASK5 0
79#define REQUIRED_MASK6 0
80#define REQUIRED_MASK7 0
81
Vegard Nossum77ef50a2008-06-18 17:08:48 +020082#endif /* ASM_X86__REQUIRED_FEATURES_H */