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lib/raid6: update test program for recovery functions

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Test each combination of recovery and syndrome generation
functions.

Signed-off-by: Jim Kukunas <james.t.kukunas@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Jim Kukunas
2012-05-22 13:54:23 +10:00
committed by NeilBrown
parent 048a8b8c89
commit 2dbf708448
3 changed files with 32 additions and 17 deletions
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15
lib/raid6/x86.h
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@@ -35,24 +35,29 @@ 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_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;
u32 eax = (flag & 0x20) ? 0x80000001 : 1;
u32 ecx, edx;
asm volatile("cpuid"
: "+a" (eax), "=d" (edx)
: : "ecx", "ebx");
: "+a" (eax), "=d" (edx), "=c" (ecx)
: : "ebx");
return (edx >> (flag & 31)) & 1;
return ((flag & 0x80 ? ecx : edx) >> (flag & 31)) & 1;
}
#endif /* ndef __KERNEL__ */