#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