1 #ifndef _ASM_REQUIRED_FEATURES_H
2 #define _ASM_REQUIRED_FEATURES_H 1
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!
8 Some requirements that are not in CPUID yet are also in the
9 CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too.
11 The real information is in arch/x86/Kconfig.cpu, this just converts
12 the CONFIGs into a bitmask */
14 #ifndef CONFIG_MATH_EMULATION
15 # define NEED_FPU (1<<(X86_FEATURE_FPU & 31))
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))
28 #if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64)
29 # define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31))
34 #ifdef CONFIG_X86_USE_3DNOW
35 # define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31))
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))
58 #define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\
59 NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\
61 #define SSE_MASK (NEED_XMM|NEED_XMM2)
63 #define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW)
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