1/* ----------------------------------------------------------------------- *
 2 *
 3 *   Copyright 2002-2004 H. Peter Anvin - All Rights Reserved
 4 *
 5 *   This program is free software; you can redistribute it and/or modify
 6 *   it under the terms of the GNU General Public License as published by
 7 *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
 8 *   Boston MA 02111-1307, USA; either version 2 of the License, or
 9 *   (at your option) any later version; incorporated herein by reference.
10 *
11 * ----------------------------------------------------------------------- */
12
13/*
14 * raid6/x86.h
15 *
16 * Definitions common to x86 and x86-64 RAID-6 code only
17 */
18
19#ifndef LINUX_RAID_RAID6X86_H
20#define LINUX_RAID_RAID6X86_H
21
22#if (defined(__i386__) || defined(__x86_64__)) && !defined(__arch_um__)
23
24#ifdef __KERNEL__ /* Real code */
25
26#include <asm/i387.h>
27
28#else /* Dummy code for user space testing */
29
30static inline void kernel_fpu_begin(void)
31{
32}
33
34static inline void kernel_fpu_end(void)
35{
36}
37
38#define __aligned(x) __attribute__((aligned(x)))
39
40#define X86_FEATURE_MMX		(0*32+23) /* Multimedia Extensions */
41#define X86_FEATURE_FXSR	(0*32+24) /* FXSAVE and FXRSTOR instructions
42					   * (fast save and restore) */
43#define X86_FEATURE_XMM		(0*32+25) /* Streaming SIMD Extensions */
44#define X86_FEATURE_XMM2	(0*32+26) /* Streaming SIMD Extensions-2 */
45#define X86_FEATURE_XMM3	(4*32+ 0) /* "pni" SSE-3 */
46#define X86_FEATURE_SSSE3	(4*32+ 9) /* Supplemental SSE-3 */
47#define X86_FEATURE_AVX	(4*32+28) /* Advanced Vector Extensions */
48#define X86_FEATURE_MMXEXT	(1*32+22) /* AMD MMX extensions */
49
50/* Should work well enough on modern CPUs for testing */
51static inline int boot_cpu_has(int flag)
52{
53	u32 eax = (flag & 0x20) ? 0x80000001 : 1;
54	u32 ecx, edx;
55
56	asm volatile("cpuid"
57		     : "+a" (eax), "=d" (edx), "=c" (ecx)
58		     : : "ebx");
59
60	return ((flag & 0x80 ? ecx : edx) >> (flag & 31)) & 1;
61}
62
63#endif /* ndef __KERNEL__ */
64
65#endif
66#endif

 1/* ----------------------------------------------------------------------- *
 2 *
 3 *   Copyright 2002-2004 H. Peter Anvin - All Rights Reserved
 4 *
 5 *   This program is free software; you can redistribute it and/or modify
 6 *   it under the terms of the GNU General Public License as published by
 7 *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
 8 *   Boston MA 02111-1307, USA; either version 2 of the License, or
 9 *   (at your option) any later version; incorporated herein by reference.
10 *
11 * ----------------------------------------------------------------------- */
12
13/*
14 * raid6/x86.h
15 *
16 * Definitions common to x86 and x86-64 RAID-6 code only
17 */
18
19#ifndef LINUX_RAID_RAID6X86_H
20#define LINUX_RAID_RAID6X86_H
21
22#if (defined(__i386__) || defined(__x86_64__)) && !defined(__arch_um__)
23
24#ifdef __KERNEL__ /* Real code */
25
26#include <asm/i387.h>
27
28#else /* Dummy code for user space testing */
29
30static inline void kernel_fpu_begin(void)
31{
32}
33
34static inline void kernel_fpu_end(void)
35{
36}
37
 
 
38#define X86_FEATURE_MMX		(0*32+23) /* Multimedia Extensions */
39#define X86_FEATURE_FXSR	(0*32+24) /* FXSAVE and FXRSTOR instructions
40					   * (fast save and restore) */
41#define X86_FEATURE_XMM		(0*32+25) /* Streaming SIMD Extensions */
42#define X86_FEATURE_XMM2	(0*32+26) /* Streaming SIMD Extensions-2 */
 
 
 
43#define X86_FEATURE_MMXEXT	(1*32+22) /* AMD MMX extensions */
44
45/* Should work well enough on modern CPUs for testing */
46static inline int boot_cpu_has(int flag)
47{
48	u32 eax = (flag >> 5) ? 0x80000001 : 1;
49	u32 edx;
50
51	asm volatile("cpuid"
52		     : "+a" (eax), "=d" (edx)
53		     : : "ecx", "ebx");
54
55	return (edx >> (flag & 31)) & 1;
56}
57
58#endif /* ndef __KERNEL__ */
59
60#endif
61#endif