blob: d6822e099c57a1b519df6dfd239c6465f200a585 (
plain) (
tree)
|
|
#ifndef ASM_X86__REQUIRED_FEATURES_H
#define ASM_X86__REQUIRED_FEATURES_H
/* Define minimum CPUID feature set for kernel These bits are checked
really early to actually display a visible error message before the
kernel dies. Make sure to assign features to the proper mask!
Some requirements that are not in CPUID yet are also in the
CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too.
The real information is in arch/x86/Kconfig.cpu, this just converts
the CONFIGs into a bitmask */
#ifndef CONFIG_MATH_EMULATION
# define NEED_FPU (1<<(X86_FEATURE_FPU & 31))
#else
# define NEED_FPU 0
#endif
#if defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
# define NEED_PAE (1<<(X86_FEATURE_PAE & 31))
#else
# define NEED_PAE 0
#endif
#ifdef CONFIG_X86_CMPXCHG64
# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31))
#else
# define NEED_CX8 0
#endif
#if defined(CONFIG_X86_CMOV) || defined(CONFIG_X86_64)
# define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31))
#else
# define NEED_CMOV 0
#endif
#ifdef CONFIG_X86_USE_3DNOW
# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31))
#else
# define NEED_3DNOW 0
#endif
#ifdef CONFIG_X86_64
#define NEED_PSE 0
#define NEED_MSR (1<<(X86_FEATURE_MSR & 31))
#define NEED_PGE (1<<(X86_FEATURE_PGE & 31))
#define NEED_FXSR (1<<(X86_FEATURE_FXSR & 31))
#define NEED_XMM (1<<(X86_FEATURE_XMM & 31))
#define NEED_XMM2 (1<<(X86_FEATURE_XMM2 & 31))
#define NEED_LM (1<<(X86_FEATURE_LM & 31))
#else
#define NEED_PSE 0
#define NEED_MSR 0
#define NEED_PGE 0
#define NEED_FXSR 0
#define NEED_XMM 0
#define NEED_XMM2 0
#define NEED_LM 0
#endif
#define REQUIRED_MASK0 (NEED_FPU|NEED_PSE|NEED_MSR|NEED_PAE|\
NEED_CX8|NEED_PGE|NEED_FXSR|NEED_CMOV|\
NEED_XMM|NEED_XMM2)
#define SSE_MASK (NEED_XMM|NEED_XMM2)
#define REQUIRED_MASK1 (NEED_LM|NEED_3DNOW)
#define REQUIRED_MASK2 0
#define REQUIRED_MASK3 0
#define REQUIRED_MASK4 0
#define REQUIRED_MASK5 0
#define REQUIRED_MASK6 0
#define REQUIRED_MASK7 0
#endif /* ASM_X86__REQUIRED_FEATURES_H */
|
