diff options
Diffstat (limited to 'drivers/md/raid6sse2.c')
| -rw-r--r-- | drivers/md/raid6sse2.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/md/raid6sse2.c b/drivers/md/raid6sse2.c index b3aa7fe..0f01976 100644 --- a/drivers/md/raid6sse2.c +++ b/drivers/md/raid6sse2.c @@ -30,17 +30,11 @@ static const struct raid6_sse_constants { static int raid6_have_sse2(void) { -#ifdef __KERNEL__ /* Not really boot_cpu but "all_cpus" */ return boot_cpu_has(X86_FEATURE_MMX) && boot_cpu_has(X86_FEATURE_FXSR) && boot_cpu_has(X86_FEATURE_XMM) && boot_cpu_has(X86_FEATURE_XMM2); -#else - /* User space test code */ - u32 features = cpuid_features(); - return ( (features & (15<<23)) == (15<<23) ); -#endif } /* @@ -51,13 +45,12 @@ static void raid6_sse21_gen_syndrome(int disks, size_t bytes, void **ptrs) u8 **dptr = (u8 **)ptrs; u8 *p, *q; int d, z, z0; - raid6_sse_save_t sa; z0 = disks - 3; /* Highest data disk */ p = dptr[z0+1]; /* XOR parity */ q = dptr[z0+2]; /* RS syndrome */ - raid6_before_sse2(&sa); + kernel_fpu_begin(); asm volatile("movdqa %0,%%xmm0" : : "m" (raid6_sse_constants.x1d[0])); asm volatile("pxor %xmm5,%xmm5"); /* Zero temp */ @@ -93,8 +86,8 @@ static void raid6_sse21_gen_syndrome(int disks, size_t bytes, void **ptrs) asm volatile("pxor %xmm4,%xmm4"); } - raid6_after_sse2(&sa); asm volatile("sfence" : : : "memory"); + kernel_fpu_end(); } const struct raid6_calls raid6_sse2x1 = { @@ -112,13 +105,12 @@ static void raid6_sse22_gen_syndrome(int disks, size_t bytes, void **ptrs) u8 **dptr = (u8 **)ptrs; u8 *p, *q; int d, z, z0; - raid6_sse_save_t sa; z0 = disks - 3; /* Highest data disk */ p = dptr[z0+1]; /* XOR parity */ q = dptr[z0+2]; /* RS syndrome */ - raid6_before_sse2(&sa); + kernel_fpu_begin(); asm volatile("movdqa %0,%%xmm0" : : "m" (raid6_sse_constants.x1d[0])); asm volatile("pxor %xmm5,%xmm5"); /* Zero temp */ @@ -156,8 +148,8 @@ static void raid6_sse22_gen_syndrome(int disks, size_t bytes, void **ptrs) asm volatile("movntdq %%xmm6,%0" : "=m" (q[d+16])); } - raid6_after_sse2(&sa); asm volatile("sfence" : : : "memory"); + kernel_fpu_end(); } const struct raid6_calls raid6_sse2x2 = { @@ -179,13 +171,12 @@ static void raid6_sse24_gen_syndrome(int disks, size_t bytes, void **ptrs) u8 **dptr = (u8 **)ptrs; u8 *p, *q; int d, z, z0; - raid6_sse16_save_t sa; z0 = disks - 3; /* Highest data disk */ p = dptr[z0+1]; /* XOR parity */ q = dptr[z0+2]; /* RS syndrome */ - raid6_before_sse16(&sa); + kernel_fpu_begin(); asm volatile("movdqa %0,%%xmm0" :: "m" (raid6_sse_constants.x1d[0])); asm volatile("pxor %xmm2,%xmm2"); /* P[0] */ @@ -256,8 +247,9 @@ static void raid6_sse24_gen_syndrome(int disks, size_t bytes, void **ptrs) asm volatile("movntdq %%xmm14,%0" : "=m" (q[d+48])); asm volatile("pxor %xmm14,%xmm14"); } + asm volatile("sfence" : : : "memory"); - raid6_after_sse16(&sa); + kernel_fpu_end(); } const struct raid6_calls raid6_sse2x4 = { |
