diff options
Diffstat (limited to 'include/asm-x86/xor_32.h')
| -rw-r--r-- | include/asm-x86/xor_32.h | 888 |
1 files changed, 0 insertions, 888 deletions
diff --git a/include/asm-x86/xor_32.h b/include/asm-x86/xor_32.h deleted file mode 100644 index 921b45840449..000000000000 --- a/include/asm-x86/xor_32.h +++ /dev/null @@ -1,888 +0,0 @@ -#ifndef ASM_X86__XOR_32_H -#define ASM_X86__XOR_32_H - -/* - * Optimized RAID-5 checksumming functions for MMX and SSE. - * - * 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; either version 2, or (at your option) - * any later version. - * - * You should have received a copy of the GNU General Public License - * (for example /usr/src/linux/COPYING); if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* - * High-speed RAID5 checksumming functions utilizing MMX instructions. - * Copyright (C) 1998 Ingo Molnar. - */ - -#define LD(x, y) " movq 8*("#x")(%1), %%mm"#y" ;\n" -#define ST(x, y) " movq %%mm"#y", 8*("#x")(%1) ;\n" -#define XO1(x, y) " pxor 8*("#x")(%2), %%mm"#y" ;\n" -#define XO2(x, y) " pxor 8*("#x")(%3), %%mm"#y" ;\n" -#define XO3(x, y) " pxor 8*("#x")(%4), %%mm"#y" ;\n" -#define XO4(x, y) " pxor 8*("#x")(%5), %%mm"#y" ;\n" - -#include <asm/i387.h> - -static void -xor_pII_mmx_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) -{ - unsigned long lines = bytes >> 7; - - kernel_fpu_begin(); - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - LD(i, 0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - XO1(i, 0) \ - ST(i, 0) \ - XO1(i+1, 1) \ - ST(i+1, 1) \ - XO1(i + 2, 2) \ - ST(i + 2, 2) \ - XO1(i + 3, 3) \ - ST(i + 3, 3) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $128, %1 ;\n" - " addl $128, %2 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2) - : - : "memory"); - - kernel_fpu_end(); -} - -static void -xor_pII_mmx_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3) -{ - unsigned long lines = bytes >> 7; - - kernel_fpu_begin(); - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - LD(i, 0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - XO1(i, 0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - XO2(i, 0) \ - ST(i, 0) \ - XO2(i + 1, 1) \ - ST(i + 1, 1) \ - XO2(i + 2, 2) \ - ST(i + 2, 2) \ - XO2(i + 3, 3) \ - ST(i + 3, 3) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $128, %1 ;\n" - " addl $128, %2 ;\n" - " addl $128, %3 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3) - : - : "memory"); - - kernel_fpu_end(); -} - -static void -xor_pII_mmx_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4) -{ - unsigned long lines = bytes >> 7; - - kernel_fpu_begin(); - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - LD(i, 0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - XO1(i, 0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - XO2(i, 0) \ - XO2(i + 1, 1) \ - XO2(i + 2, 2) \ - XO2(i + 3, 3) \ - XO3(i, 0) \ - ST(i, 0) \ - XO3(i + 1, 1) \ - ST(i + 1, 1) \ - XO3(i + 2, 2) \ - ST(i + 2, 2) \ - XO3(i + 3, 3) \ - ST(i + 3, 3) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $128, %1 ;\n" - " addl $128, %2 ;\n" - " addl $128, %3 ;\n" - " addl $128, %4 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3), "+r" (p4) - : - : "memory"); - - kernel_fpu_end(); -} - - -static void -xor_pII_mmx_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4, unsigned long *p5) -{ - unsigned long lines = bytes >> 7; - - kernel_fpu_begin(); - - /* Make sure GCC forgets anything it knows about p4 or p5, - such that it won't pass to the asm volatile below a - register that is shared with any other variable. That's - because we modify p4 and p5 there, but we can't mark them - as read/write, otherwise we'd overflow the 10-asm-operands - limit of GCC < 3.1. */ - asm("" : "+r" (p4), "+r" (p5)); - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - LD(i, 0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - XO1(i, 0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - XO2(i, 0) \ - XO2(i + 1, 1) \ - XO2(i + 2, 2) \ - XO2(i + 3, 3) \ - XO3(i, 0) \ - XO3(i + 1, 1) \ - XO3(i + 2, 2) \ - XO3(i + 3, 3) \ - XO4(i, 0) \ - ST(i, 0) \ - XO4(i + 1, 1) \ - ST(i + 1, 1) \ - XO4(i + 2, 2) \ - ST(i + 2, 2) \ - XO4(i + 3, 3) \ - ST(i + 3, 3) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $128, %1 ;\n" - " addl $128, %2 ;\n" - " addl $128, %3 ;\n" - " addl $128, %4 ;\n" - " addl $128, %5 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3) - : "r" (p4), "r" (p5) - : "memory"); - - /* p4 and p5 were modified, and now the variables are dead. - Clobber them just to be sure nobody does something stupid - like assuming they have some legal value. */ - asm("" : "=r" (p4), "=r" (p5)); - - kernel_fpu_end(); -} - -#undef LD -#undef XO1 -#undef XO2 -#undef XO3 -#undef XO4 -#undef ST -#undef BLOCK - -static void -xor_p5_mmx_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) -{ - unsigned long lines = bytes >> 6; - - kernel_fpu_begin(); - - asm volatile( - " .align 32 ;\n" - " 1: ;\n" - " movq (%1), %%mm0 ;\n" - " movq 8(%1), %%mm1 ;\n" - " pxor (%2), %%mm0 ;\n" - " movq 16(%1), %%mm2 ;\n" - " movq %%mm0, (%1) ;\n" - " pxor 8(%2), %%mm1 ;\n" - " movq 24(%1), %%mm3 ;\n" - " movq %%mm1, 8(%1) ;\n" - " pxor 16(%2), %%mm2 ;\n" - " movq 32(%1), %%mm4 ;\n" - " movq %%mm2, 16(%1) ;\n" - " pxor 24(%2), %%mm3 ;\n" - " movq 40(%1), %%mm5 ;\n" - " movq %%mm3, 24(%1) ;\n" - " pxor 32(%2), %%mm4 ;\n" - " movq 48(%1), %%mm6 ;\n" - " movq %%mm4, 32(%1) ;\n" - " pxor 40(%2), %%mm5 ;\n" - " movq 56(%1), %%mm7 ;\n" - " movq %%mm5, 40(%1) ;\n" - " pxor 48(%2), %%mm6 ;\n" - " pxor 56(%2), %%mm7 ;\n" - " movq %%mm6, 48(%1) ;\n" - " movq %%mm7, 56(%1) ;\n" - - " addl $64, %1 ;\n" - " addl $64, %2 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2) - : - : "memory"); - - kernel_fpu_end(); -} - -static void -xor_p5_mmx_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3) -{ - unsigned long lines = bytes >> 6; - - kernel_fpu_begin(); - - asm volatile( - " .align 32,0x90 ;\n" - " 1: ;\n" - " movq (%1), %%mm0 ;\n" - " movq 8(%1), %%mm1 ;\n" - " pxor (%2), %%mm0 ;\n" - " movq 16(%1), %%mm2 ;\n" - " pxor 8(%2), %%mm1 ;\n" - " pxor (%3), %%mm0 ;\n" - " pxor 16(%2), %%mm2 ;\n" - " movq %%mm0, (%1) ;\n" - " pxor 8(%3), %%mm1 ;\n" - " pxor 16(%3), %%mm2 ;\n" - " movq 24(%1), %%mm3 ;\n" - " movq %%mm1, 8(%1) ;\n" - " movq 32(%1), %%mm4 ;\n" - " movq 40(%1), %%mm5 ;\n" - " pxor 24(%2), %%mm3 ;\n" - " movq %%mm2, 16(%1) ;\n" - " pxor 32(%2), %%mm4 ;\n" - " pxor 24(%3), %%mm3 ;\n" - " pxor 40(%2), %%mm5 ;\n" - " movq %%mm3, 24(%1) ;\n" - " pxor 32(%3), %%mm4 ;\n" - " pxor 40(%3), %%mm5 ;\n" - " movq 48(%1), %%mm6 ;\n" - " movq %%mm4, 32(%1) ;\n" - " movq 56(%1), %%mm7 ;\n" - " pxor 48(%2), %%mm6 ;\n" - " movq %%mm5, 40(%1) ;\n" - " pxor 56(%2), %%mm7 ;\n" - " pxor 48(%3), %%mm6 ;\n" - " pxor 56(%3), %%mm7 ;\n" - " movq %%mm6, 48(%1) ;\n" - " movq %%mm7, 56(%1) ;\n" - - " addl $64, %1 ;\n" - " addl $64, %2 ;\n" - " addl $64, %3 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3) - : - : "memory" ); - - kernel_fpu_end(); -} - -static void -xor_p5_mmx_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4) -{ - unsigned long lines = bytes >> 6; - - kernel_fpu_begin(); - - asm volatile( - " .align 32,0x90 ;\n" - " 1: ;\n" - " movq (%1), %%mm0 ;\n" - " movq 8(%1), %%mm1 ;\n" - " pxor (%2), %%mm0 ;\n" - " movq 16(%1), %%mm2 ;\n" - " pxor 8(%2), %%mm1 ;\n" - " pxor (%3), %%mm0 ;\n" - " pxor 16(%2), %%mm2 ;\n" - " pxor 8(%3), %%mm1 ;\n" - " pxor (%4), %%mm0 ;\n" - " movq 24(%1), %%mm3 ;\n" - " pxor 16(%3), %%mm2 ;\n" - " pxor 8(%4), %%mm1 ;\n" - " movq %%mm0, (%1) ;\n" - " movq 32(%1), %%mm4 ;\n" - " pxor 24(%2), %%mm3 ;\n" - " pxor 16(%4), %%mm2 ;\n" - " movq %%mm1, 8(%1) ;\n" - " movq 40(%1), %%mm5 ;\n" - " pxor 32(%2), %%mm4 ;\n" - " pxor 24(%3), %%mm3 ;\n" - " movq %%mm2, 16(%1) ;\n" - " pxor 40(%2), %%mm5 ;\n" - " pxor 32(%3), %%mm4 ;\n" - " pxor 24(%4), %%mm3 ;\n" - " movq %%mm3, 24(%1) ;\n" - " movq 56(%1), %%mm7 ;\n" - " movq 48(%1), %%mm6 ;\n" - " pxor 40(%3), %%mm5 ;\n" - " pxor 32(%4), %%mm4 ;\n" - " pxor 48(%2), %%mm6 ;\n" - " movq %%mm4, 32(%1) ;\n" - " pxor 56(%2), %%mm7 ;\n" - " pxor 40(%4), %%mm5 ;\n" - " pxor 48(%3), %%mm6 ;\n" - " pxor 56(%3), %%mm7 ;\n" - " movq %%mm5, 40(%1) ;\n" - " pxor 48(%4), %%mm6 ;\n" - " pxor 56(%4), %%mm7 ;\n" - " movq %%mm6, 48(%1) ;\n" - " movq %%mm7, 56(%1) ;\n" - - " addl $64, %1 ;\n" - " addl $64, %2 ;\n" - " addl $64, %3 ;\n" - " addl $64, %4 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3), "+r" (p4) - : - : "memory"); - - kernel_fpu_end(); -} - -static void -xor_p5_mmx_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4, unsigned long *p5) -{ - unsigned long lines = bytes >> 6; - - kernel_fpu_begin(); - - /* Make sure GCC forgets anything it knows about p4 or p5, - such that it won't pass to the asm volatile below a - register that is shared with any other variable. That's - because we modify p4 and p5 there, but we can't mark them - as read/write, otherwise we'd overflow the 10-asm-operands - limit of GCC < 3.1. */ - asm("" : "+r" (p4), "+r" (p5)); - - asm volatile( - " .align 32,0x90 ;\n" - " 1: ;\n" - " movq (%1), %%mm0 ;\n" - " movq 8(%1), %%mm1 ;\n" - " pxor (%2), %%mm0 ;\n" - " pxor 8(%2), %%mm1 ;\n" - " movq 16(%1), %%mm2 ;\n" - " pxor (%3), %%mm0 ;\n" - " pxor 8(%3), %%mm1 ;\n" - " pxor 16(%2), %%mm2 ;\n" - " pxor (%4), %%mm0 ;\n" - " pxor 8(%4), %%mm1 ;\n" - " pxor 16(%3), %%mm2 ;\n" - " movq 24(%1), %%mm3 ;\n" - " pxor (%5), %%mm0 ;\n" - " pxor 8(%5), %%mm1 ;\n" - " movq %%mm0, (%1) ;\n" - " pxor 16(%4), %%mm2 ;\n" - " pxor 24(%2), %%mm3 ;\n" - " movq %%mm1, 8(%1) ;\n" - " pxor 16(%5), %%mm2 ;\n" - " pxor 24(%3), %%mm3 ;\n" - " movq 32(%1), %%mm4 ;\n" - " movq %%mm2, 16(%1) ;\n" - " pxor 24(%4), %%mm3 ;\n" - " pxor 32(%2), %%mm4 ;\n" - " movq 40(%1), %%mm5 ;\n" - " pxor 24(%5), %%mm3 ;\n" - " pxor 32(%3), %%mm4 ;\n" - " pxor 40(%2), %%mm5 ;\n" - " movq %%mm3, 24(%1) ;\n" - " pxor 32(%4), %%mm4 ;\n" - " pxor 40(%3), %%mm5 ;\n" - " movq 48(%1), %%mm6 ;\n" - " movq 56(%1), %%mm7 ;\n" - " pxor 32(%5), %%mm4 ;\n" - " pxor 40(%4), %%mm5 ;\n" - " pxor 48(%2), %%mm6 ;\n" - " pxor 56(%2), %%mm7 ;\n" - " movq %%mm4, 32(%1) ;\n" - " pxor 48(%3), %%mm6 ;\n" - " pxor 56(%3), %%mm7 ;\n" - " pxor 40(%5), %%mm5 ;\n" - " pxor 48(%4), %%mm6 ;\n" - " pxor 56(%4), %%mm7 ;\n" - " movq %%mm5, 40(%1) ;\n" - " pxor 48(%5), %%mm6 ;\n" - " pxor 56(%5), %%mm7 ;\n" - " movq %%mm6, 48(%1) ;\n" - " movq %%mm7, 56(%1) ;\n" - - " addl $64, %1 ;\n" - " addl $64, %2 ;\n" - " addl $64, %3 ;\n" - " addl $64, %4 ;\n" - " addl $64, %5 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3) - : "r" (p4), "r" (p5) - : "memory"); - - /* p4 and p5 were modified, and now the variables are dead. - Clobber them just to be sure nobody does something stupid - like assuming they have some legal value. */ - asm("" : "=r" (p4), "=r" (p5)); - - kernel_fpu_end(); -} - -static struct xor_block_template xor_block_pII_mmx = { - .name = "pII_mmx", - .do_2 = xor_pII_mmx_2, - .do_3 = xor_pII_mmx_3, - .do_4 = xor_pII_mmx_4, - .do_5 = xor_pII_mmx_5, -}; - -static struct xor_block_template xor_block_p5_mmx = { - .name = "p5_mmx", - .do_2 = xor_p5_mmx_2, - .do_3 = xor_p5_mmx_3, - .do_4 = xor_p5_mmx_4, - .do_5 = xor_p5_mmx_5, -}; - -/* - * Cache avoiding checksumming functions utilizing KNI instructions - * Copyright (C) 1999 Zach Brown (with obvious credit due Ingo) - */ - -#define XMMS_SAVE \ -do { \ - preempt_disable(); \ - cr0 = read_cr0(); \ - clts(); \ - asm volatile( \ - "movups %%xmm0,(%0) ;\n\t" \ - "movups %%xmm1,0x10(%0) ;\n\t" \ - "movups %%xmm2,0x20(%0) ;\n\t" \ - "movups %%xmm3,0x30(%0) ;\n\t" \ - : \ - : "r" (xmm_save) \ - : "memory"); \ -} while (0) - -#define XMMS_RESTORE \ -do { \ - asm volatile( \ - "sfence ;\n\t" \ - "movups (%0),%%xmm0 ;\n\t" \ - "movups 0x10(%0),%%xmm1 ;\n\t" \ - "movups 0x20(%0),%%xmm2 ;\n\t" \ - "movups 0x30(%0),%%xmm3 ;\n\t" \ - : \ - : "r" (xmm_save) \ - : "memory"); \ - write_cr0(cr0); \ - preempt_enable(); \ -} while (0) - -#define ALIGN16 __attribute__((aligned(16))) - -#define OFFS(x) "16*("#x")" -#define PF_OFFS(x) "256+16*("#x")" -#define PF0(x) " prefetchnta "PF_OFFS(x)"(%1) ;\n" -#define LD(x, y) " movaps "OFFS(x)"(%1), %%xmm"#y" ;\n" -#define ST(x, y) " movaps %%xmm"#y", "OFFS(x)"(%1) ;\n" -#define PF1(x) " prefetchnta "PF_OFFS(x)"(%2) ;\n" -#define PF2(x) " prefetchnta "PF_OFFS(x)"(%3) ;\n" -#define PF3(x) " prefetchnta "PF_OFFS(x)"(%4) ;\n" -#define PF4(x) " prefetchnta "PF_OFFS(x)"(%5) ;\n" -#define PF5(x) " prefetchnta "PF_OFFS(x)"(%6) ;\n" -#define XO1(x, y) " xorps "OFFS(x)"(%2), %%xmm"#y" ;\n" -#define XO2(x, y) " xorps "OFFS(x)"(%3), %%xmm"#y" ;\n" -#define XO3(x, y) " xorps "OFFS(x)"(%4), %%xmm"#y" ;\n" -#define XO4(x, y) " xorps "OFFS(x)"(%5), %%xmm"#y" ;\n" -#define XO5(x, y) " xorps "OFFS(x)"(%6), %%xmm"#y" ;\n" - - -static void -xor_sse_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) -{ - unsigned long lines = bytes >> 8; - char xmm_save[16*4] ALIGN16; - int cr0; - - XMMS_SAVE; - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - LD(i, 0) \ - LD(i + 1, 1) \ - PF1(i) \ - PF1(i + 2) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - PF0(i + 4) \ - PF0(i + 6) \ - XO1(i, 0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - ST(i, 0) \ - ST(i + 1, 1) \ - ST(i + 2, 2) \ - ST(i + 3, 3) \ - - - PF0(0) - PF0(2) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $256, %1 ;\n" - " addl $256, %2 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2) - : - : "memory"); - - XMMS_RESTORE; -} - -static void -xor_sse_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3) -{ - unsigned long lines = bytes >> 8; - char xmm_save[16*4] ALIGN16; - int cr0; - - XMMS_SAVE; - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - PF1(i) \ - PF1(i + 2) \ - LD(i,0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - PF2(i) \ - PF2(i + 2) \ - PF0(i + 4) \ - PF0(i + 6) \ - XO1(i,0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - XO2(i,0) \ - XO2(i + 1, 1) \ - XO2(i + 2, 2) \ - XO2(i + 3, 3) \ - ST(i,0) \ - ST(i + 1, 1) \ - ST(i + 2, 2) \ - ST(i + 3, 3) \ - - - PF0(0) - PF0(2) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $256, %1 ;\n" - " addl $256, %2 ;\n" - " addl $256, %3 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r"(p2), "+r"(p3) - : - : "memory" ); - - XMMS_RESTORE; -} - -static void -xor_sse_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4) -{ - unsigned long lines = bytes >> 8; - char xmm_save[16*4] ALIGN16; - int cr0; - - XMMS_SAVE; - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - PF1(i) \ - PF1(i + 2) \ - LD(i,0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - PF2(i) \ - PF2(i + 2) \ - XO1(i,0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - PF3(i) \ - PF3(i + 2) \ - PF0(i + 4) \ - PF0(i + 6) \ - XO2(i,0) \ - XO2(i + 1, 1) \ - XO2(i + 2, 2) \ - XO2(i + 3, 3) \ - XO3(i,0) \ - XO3(i + 1, 1) \ - XO3(i + 2, 2) \ - XO3(i + 3, 3) \ - ST(i,0) \ - ST(i + 1, 1) \ - ST(i + 2, 2) \ - ST(i + 3, 3) \ - - - PF0(0) - PF0(2) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $256, %1 ;\n" - " addl $256, %2 ;\n" - " addl $256, %3 ;\n" - " addl $256, %4 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3), "+r" (p4) - : - : "memory" ); - - XMMS_RESTORE; -} - -static void -xor_sse_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, - unsigned long *p3, unsigned long *p4, unsigned long *p5) -{ - unsigned long lines = bytes >> 8; - char xmm_save[16*4] ALIGN16; - int cr0; - - XMMS_SAVE; - - /* Make sure GCC forgets anything it knows about p4 or p5, - such that it won't pass to the asm volatile below a - register that is shared with any other variable. That's - because we modify p4 and p5 there, but we can't mark them - as read/write, otherwise we'd overflow the 10-asm-operands - limit of GCC < 3.1. */ - asm("" : "+r" (p4), "+r" (p5)); - - asm volatile( -#undef BLOCK -#define BLOCK(i) \ - PF1(i) \ - PF1(i + 2) \ - LD(i,0) \ - LD(i + 1, 1) \ - LD(i + 2, 2) \ - LD(i + 3, 3) \ - PF2(i) \ - PF2(i + 2) \ - XO1(i,0) \ - XO1(i + 1, 1) \ - XO1(i + 2, 2) \ - XO1(i + 3, 3) \ - PF3(i) \ - PF3(i + 2) \ - XO2(i,0) \ - XO2(i + 1, 1) \ - XO2(i + 2, 2) \ - XO2(i + 3, 3) \ - PF4(i) \ - PF4(i + 2) \ - PF0(i + 4) \ - PF0(i + 6) \ - XO3(i,0) \ - XO3(i + 1, 1) \ - XO3(i + 2, 2) \ - XO3(i + 3, 3) \ - XO4(i,0) \ - XO4(i + 1, 1) \ - XO4(i + 2, 2) \ - XO4(i + 3, 3) \ - ST(i,0) \ - ST(i + 1, 1) \ - ST(i + 2, 2) \ - ST(i + 3, 3) \ - - - PF0(0) - PF0(2) - - " .align 32 ;\n" - " 1: ;\n" - - BLOCK(0) - BLOCK(4) - BLOCK(8) - BLOCK(12) - - " addl $256, %1 ;\n" - " addl $256, %2 ;\n" - " addl $256, %3 ;\n" - " addl $256, %4 ;\n" - " addl $256, %5 ;\n" - " decl %0 ;\n" - " jnz 1b ;\n" - : "+r" (lines), - "+r" (p1), "+r" (p2), "+r" (p3) - : "r" (p4), "r" (p5) - : "memory"); - - /* p4 and p5 were modified, and now the variables are dead. - Clobber them just to be sure nobody does something stupid - like assuming they have some legal value. */ - asm("" : "=r" (p4), "=r" (p5)); - - XMMS_RESTORE; -} - -static struct xor_block_template xor_block_pIII_sse = { - .name = "pIII_sse", - .do_2 = xor_sse_2, - .do_3 = xor_sse_3, - .do_4 = xor_sse_4, - .do_5 = xor_sse_5, -}; - -/* Also try the generic routines. */ -#include <asm-generic/xor.h> - -#undef XOR_TRY_TEMPLATES -#define XOR_TRY_TEMPLATES \ -do { \ - xor_speed(&xor_block_8regs); \ - xor_speed(&xor_block_8regs_p); \ - xor_speed(&xor_block_32regs); \ - xor_speed(&xor_block_32regs_p); \ - if (cpu_has_xmm) \ - xor_speed(&xor_block_pIII_sse); \ - if (cpu_has_mmx) { \ - xor_speed(&xor_block_pII_mmx); \ - xor_speed(&xor_block_p5_mmx); \ - } \ -} while (0) - -/* We force the use of the SSE xor block because it can write around L2. - We may also be able to load into the L1 only depending on how the cpu - deals with a load to a line that is being prefetched. */ -#define XOR_SELECT_TEMPLATE(FASTEST) \ - (cpu_has_xmm ? &xor_block_pIII_sse : FASTEST) - -#endif /* ASM_X86__XOR_32_H */ |
