linux/include/asm-x86/required-features_32.h
Thomas Gleixner 96a388de5d i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11 11:20:03 +02:00

56 lines
1.3 KiB
C

#ifndef _ASM_REQUIRED_FEATURES_H
#define _ASM_REQUIRED_FEATURES_H 1
/* 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/i386/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
#ifdef CONFIG_X86_PAE
# define NEED_PAE (1<<(X86_FEATURE_PAE & 31))
#else
# define NEED_PAE 0
#endif
#ifdef CONFIG_X86_CMOV
# define NEED_CMOV (1<<(X86_FEATURE_CMOV & 31))
#else
# define NEED_CMOV 0
#endif
#ifdef CONFIG_X86_PAE
# define NEED_CX8 (1<<(X86_FEATURE_CX8 & 31))
#else
# define NEED_CX8 0
#endif
#define REQUIRED_MASK0 (NEED_FPU|NEED_PAE|NEED_CMOV|NEED_CX8)
#ifdef CONFIG_X86_USE_3DNOW
# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31))
#else
# define NEED_3DNOW 0
#endif
#define REQUIRED_MASK1 (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