/* ----------------------------------------------------------------------- * * * Copyright 2002-2004 H. Peter Anvin - All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, Inc., 53 Temple Place Ste 330, * Boston MA 02111-1307, USA; either version 2 of the License, or * (at your option) any later version; incorporated herein by reference. * * ----------------------------------------------------------------------- */ /* * raid6/x86.h * * Definitions common to x86 and x86-64 RAID-6 code only */ #ifndef LINUX_RAID_RAID6X86_H #define LINUX_RAID_RAID6X86_H #if (defined(__i386__) || defined(__x86_64__)) && !defined(__arch_um__) #ifdef __KERNEL__ /* Real code */ #include #else /* Dummy code for user space testing */ static inline void kernel_fpu_begin(void) { } static inline void kernel_fpu_end(void) { } #define __aligned(x) __attribute__((aligned(x))) #define X86_FEATURE_MMX (0*32+23) /* Multimedia Extensions */ #define X86_FEATURE_FXSR (0*32+24) /* FXSAVE and FXRSTOR instructions * (fast save and restore) */ #define X86_FEATURE_XMM (0*32+25) /* Streaming SIMD Extensions */ #define X86_FEATURE_XMM2 (0*32+26) /* Streaming SIMD Extensions-2 */ #define X86_FEATURE_XMM3 (4*32+ 0) /* "pni" SSE-3 */ #define X86_FEATURE_SSSE3 (4*32+ 9) /* Supplemental SSE-3 */ #define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions */ #define X86_FEATURE_AVX2 (9*32+ 5) /* AVX2 instructions */ #define X86_FEATURE_AVX512F (9*32+16) /* AVX-512 Foundation */ #define X86_FEATURE_AVX512DQ (9*32+17) /* AVX-512 DQ (Double/Quad granular) * Instructions */ #define X86_FEATURE_AVX512BW (9*32+30) /* AVX-512 BW (Byte/Word granular) * Instructions */ #define X86_FEATURE_AVX512VL (9*32+31) /* AVX-512 VL (128/256 Vector Length) * Extensions */ #define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */ /* Should work well enough on modern CPUs for testing */ static inline int boot_cpu_has(int flag) { u32 eax, ebx, ecx, edx; eax = (flag & 0x100) ? 7 : (flag & 0x20) ? 0x80000001 : 1; ecx = 0; asm volatile("cpuid" : "+a" (eax), "=b" (ebx), "=d" (edx), "+c" (ecx)); return ((flag & 0x100 ? ebx : (flag & 0x80) ? ecx : edx) >> (flag & 31)) & 1; } #endif /* ndef __KERNEL__ */ #endif #endif rivate-remove'/>

path: root/tools/build/feature/Makefile

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