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#ifdef CONFIG_X86_USE_3DNOW
39# define NEED_3DNOW	(1<<(X86_FEATURE_3DNOW & 31))
40#else
41# define NEED_3DNOW	0
42#endif
43
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
50#ifdef CONFIG_MATOM
51# define NEED_MOVBE	(1<<(X86_FEATURE_MOVBE & 31))
52#else
53# define NEED_MOVBE	0
54#endif
55
56#ifdef CONFIG_X86_64
57#ifdef CONFIG_PARAVIRT
58/* Paravirtualized systems may not have PSE or PGE available */
59#define NEED_PSE	0
60#define NEED_PGE	0
61#else
62#define NEED_PSE	(1<<(X86_FEATURE_PSE) & 31)
63#define NEED_PGE	(1<<(X86_FEATURE_PGE) & 31)
64#endif
65#define NEED_MSR	(1<<(X86_FEATURE_MSR & 31))
66#define NEED_FXSR	(1<<(X86_FEATURE_FXSR & 31))
67#define NEED_XMM	(1<<(X86_FEATURE_XMM & 31))
68#define NEED_XMM2	(1<<(X86_FEATURE_XMM2 & 31))
69#define NEED_LM		(1<<(X86_FEATURE_LM & 31))
70#else
71#define NEED_PSE	0
72#define NEED_MSR	0
73#define NEED_PGE	0
74#define NEED_FXSR	0
75#define NEED_XMM	0
76#define NEED_XMM2	0
77#define NEED_LM		0
78#endif
79
80#define REQUIRED_MASK0	(NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\
81			 NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\
82			 NEED_XMM|NEED_XMM2)
83#define SSE_MASK	(NEED_XMM|NEED_XMM2)
84
85#define REQUIRED_MASK1	(NEED_LM|NEED_3DNOW)
86
87#define REQUIRED_MASK2	0
88#define REQUIRED_MASK3	(NEED_NOPL)
89#define REQUIRED_MASK4	(NEED_MOVBE)
90#define REQUIRED_MASK5	0
91#define REQUIRED_MASK6	0
92#define REQUIRED_MASK7	0
93#define REQUIRED_MASK8	0
94#define REQUIRED_MASK9	0
95
96#endif /* _ASM_X86_REQUIRED_FEATURES_H */
97