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| author | David Woodhouse <dwmw2@tylersburg.infradead.org> | 2009-07-13 11:35:12 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-10-29 14:38:47 +0000 |
| commit | f5e70d0fe3ea990cfb3fc8d7f76a719adcb1e0b5 (patch) | |
| tree | 1794eb51814228ff76f672a541100ad62dd791c9 /drivers/md/raid6x86.h | |
| parent | 17d857be649a21ca90008c6dc425d849fa83db5c (diff) | |
| download | op-kernel-dev-f5e70d0fe3ea990cfb3fc8d7f76a719adcb1e0b5.zip op-kernel-dev-f5e70d0fe3ea990cfb3fc8d7f76a719adcb1e0b5.tar.gz | |
md: Factor out RAID6 algorithms into lib/
We'll want to use these in btrfs too.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/md/raid6x86.h')
| -rw-r--r-- | drivers/md/raid6x86.h | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/drivers/md/raid6x86.h b/drivers/md/raid6x86.h deleted file mode 100644 index 4c22c15..0000000 --- a/drivers/md/raid6x86.h +++ /dev/null @@ -1,61 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * 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. - * - * ----------------------------------------------------------------------- */ - -/* - * raid6x86.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 <asm/i387.h> - -#else /* Dummy code for user space testing */ - -static inline void kernel_fpu_begin(void) -{ -} - -static inline void kernel_fpu_end(void) -{ -} - -#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_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 = (flag >> 5) ? 0x80000001 : 1; - u32 edx; - - asm volatile("cpuid" - : "+a" (eax), "=d" (edx) - : : "ecx", "ebx"); - - return (edx >> (flag & 31)) & 1; -} - -#endif /* ndef __KERNEL__ */ - -#endif -#endif |
