http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/asm-generic/xor.h

/* * include/asm-generic/xor.h * * Generic optimized RAID-5 checksumming functions. * * 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. */ #include <asm/processor.h> static void xor_8regs_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) { long lines = bytes / (sizeof (long)) / 8; do { p1[0] ^= p2[0]; p1[1] ^= p2[1]; p1[2] ^= p2[2]; p1[3] ^= p2[3]; p1[4] ^= p2[4]; p1[5] ^= p2[5]; p1[6] ^= p2[6]; p1[7] ^= p2[7]; p1 += 8; p2 += 8; } while (--lines > 0); } static void xor_8regs_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3) { long lines = bytes / (sizeof (long)) / 8; do { p1[0] ^= p2[0] ^ p3[0]; p1[1] ^= p2[1] ^ p3[1]; p1[2] ^= p2[2] ^ p3[2]; p1[3] ^= p2[3] ^ p3[3]; p1[4] ^= p2[4] ^ p3[4]; p1[5] ^= p2[5] ^ p3[5]; p1[6] ^= p2[6] ^ p3[6]; p1[7] ^= p2[7] ^ p3[7]; p1 += 8; p2 += 8; p3 += 8; } while (--lines > 0); } static void xor_8regs_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4) { long lines = bytes / (sizeof (long)) / 8; do { p1[0] ^= p2[0] ^ p3[0] ^ p4[0]; p1[1] ^= p2[1] ^ p3[1] ^ p4[1]; p1[2] ^= p2[2] ^ p3[2] ^ p4[2]; p1[3] ^= p2[3] ^ p3[3] ^ p4[3]; p1[4] ^= p2[4] ^ p3[4] ^ p4[4]; p1[5] ^= p2[5] ^ p3[5] ^ p4[5]; p1[6] ^= p2[6] ^ p3[6] ^ p4[6]; p1[7] ^= p2[7] ^ p3[7] ^ p4[7]; p1 += 8; p2 += 8; p3 += 8; p4 += 8; } while (--lines > 0); } static void xor_8regs_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4, unsigned long *p5) { long lines = bytes / (sizeof (long)) / 8; do { p1[0] ^= p2[0] ^ p3[0] ^ p4[0] ^ p5[0]; p1[1] ^= p2[1] ^ p3[1] ^ p4[1] ^ p5[1]; p1[2] ^= p2[2] ^ p3[2] ^ p4[2] ^ p5[2]; p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3]; p1[4] ^= p2[4] ^ p3[4] ^ p4[4] ^ p5[4]; p1[5] ^= p2[5] ^ p3[5] ^ p4[5] ^ p5[5]; p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6]; p1[7] ^= p2[7] ^ p3[7] ^ p4[7] ^ p5[7]; p1 += 8; p2 += 8; p3 += 8; p4 += 8; p5 += 8; } while (--lines > 0); } static void xor_32regs_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) { long lines = bytes / (sizeof (long)) / 8; do { register long d0, d1, d2, d3, d4, d5, d6, d7; d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; } while (--lines > 0); } static void xor_32regs_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3) { long lines = bytes / (sizeof (long)) / 8; do { register long d0, d1, d2, d3, d4, d5, d6, d7; d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; d0 ^= p3[0]; d1 ^= p3[1]; d2 ^= p3[2]; d3 ^= p3[3]; d4 ^= p3[4]; d5 ^= p3[5]; d6 ^= p3[6]; d7 ^= p3[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; p3 += 8; } while (--lines > 0); } static void xor_32regs_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4) { long lines = bytes / (sizeof (long)) / 8; do { register long d0, d1, d2, d3, d4, d5, d6, d7; d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; d0 ^= p3[0]; d1 ^= p3[1]; d2 ^= p3[2]; d3 ^= p3[3]; d4 ^= p3[4]; d5 ^= p3[5]; d6 ^= p3[6]; d7 ^= p3[7]; d0 ^= p4[0]; d1 ^= p4[1]; d2 ^= p4[2]; d3 ^= p4[3]; d4 ^= p4[4]; d5 ^= p4[5]; d6 ^= p4[6]; d7 ^= p4[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; p3 += 8; p4 += 8; } while (--lines > 0); } static void xor_32regs_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4, unsigned long *p5) { long lines = bytes / (sizeof (long)) / 8; do { register long d0, d1, d2, d3, d4, d5, d6, d7; d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; d0 ^= p3[0]; d1 ^= p3[1]; d2 ^= p3[2]; d3 ^= p3[3]; d4 ^= p3[4]; d5 ^= p3[5]; d6 ^= p3[6]; d7 ^= p3[7]; d0 ^= p4[0]; d1 ^= p4[1]; d2 ^= p4[2]; d3 ^= p4[3]; d4 ^= p4[4]; d5 ^= p4[5]; d6 ^= p4[6]; d7 ^= p4[7]; d0 ^= p5[0]; d1 ^= p5[1]; d2 ^= p5[2]; d3 ^= p5[3]; d4 ^= p5[4]; d5 ^= p5[5]; d6 ^= p5[6]; d7 ^= p5[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; p3 += 8; p4 += 8; p5 += 8; } while (--lines > 0); } static void xor_8regs_p_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); do { prefetchw(p1+8); prefetch(p2+8); once_more: p1[0] ^= p2[0]; p1[1] ^= p2[1]; p1[2] ^= p2[2]; p1[3] ^= p2[3]; p1[4] ^= p2[4]; p1[5] ^= p2[5]; p1[6] ^= p2[6]; p1[7] ^= p2[7]; p1 += 8; p2 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_8regs_p_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); prefetch(p3); do { prefetchw(p1+8); prefetch(p2+8); prefetch(p3+8); once_more: p1[0] ^= p2[0] ^ p3[0]; p1[1] ^= p2[1] ^ p3[1]; p1[2] ^= p2[2] ^ p3[2]; p1[3] ^= p2[3] ^ p3[3]; p1[4] ^= p2[4] ^ p3[4]; p1[5] ^= p2[5] ^ p3[5]; p1[6] ^= p2[6] ^ p3[6]; p1[7] ^= p2[7] ^ p3[7]; p1 += 8; p2 += 8; p3 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_8regs_p_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); prefetch(p3); prefetch(p4); do { prefetchw(p1+8); prefetch(p2+8); prefetch(p3+8); prefetch(p4+8); once_more: p1[0] ^= p2[0] ^ p3[0] ^ p4[0]; p1[1] ^= p2[1] ^ p3[1] ^ p4[1]; p1[2] ^= p2[2] ^ p3[2] ^ p4[2]; p1[3] ^= p2[3] ^ p3[3] ^ p4[3]; p1[4] ^= p2[4] ^ p3[4] ^ p4[4]; p1[5] ^= p2[5] ^ p3[5] ^ p4[5]; p1[6] ^= p2[6] ^ p3[6] ^ p4[6]; p1[7] ^= p2[7] ^ p3[7] ^ p4[7]; p1 += 8; p2 += 8; p3 += 8; p4 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_8regs_p_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4, unsigned long *p5) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); prefetch(p3); prefetch(p4); prefetch(p5); do { prefetchw(p1+8); prefetch(p2+8); prefetch(p3+8); prefetch(p4+8); prefetch(p5+8); once_more: p1[0] ^= p2[0] ^ p3[0] ^ p4[0] ^ p5[0]; p1[1] ^= p2[1] ^ p3[1] ^ p4[1] ^ p5[1]; p1[2] ^= p2[2] ^ p3[2] ^ p4[2] ^ p5[2]; p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3]; p1[4] ^= p2[4] ^ p3[4] ^ p4[4] ^ p5[4]; p1[5] ^= p2[5] ^ p3[5] ^ p4[5] ^ p5[5]; p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6]; p1[7] ^= p2[7] ^ p3[7] ^ p4[7] ^ p5[7]; p1 += 8; p2 += 8; p3 += 8; p4 += 8; p5 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_32regs_p_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); do { register long d0, d1, d2, d3, d4, d5, d6, d7; prefetchw(p1+8); prefetch(p2+8); once_more: d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_32regs_p_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); prefetch(p3); do { register long d0, d1, d2, d3, d4, d5, d6, d7; prefetchw(p1+8); prefetch(p2+8); prefetch(p3+8); once_more: d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; d0 ^= p3[0]; d1 ^= p3[1]; d2 ^= p3[2]; d3 ^= p3[3]; d4 ^= p3[4]; d5 ^= p3[5]; d6 ^= p3[6]; d7 ^= p3[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; p3 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_32regs_p_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); prefetch(p3); prefetch(p4); do { register long d0, d1, d2, d3, d4, d5, d6, d7; prefetchw(p1+8); prefetch(p2+8); prefetch(p3+8); prefetch(p4+8); once_more: d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; d0 ^= p3[0]; d1 ^= p3[1]; d2 ^= p3[2]; d3 ^= p3[3]; d4 ^= p3[4]; d5 ^= p3[5]; d6 ^= p3[6]; d7 ^= p3[7]; d0 ^= p4[0]; d1 ^= p4[1]; d2 ^= p4[2]; d3 ^= p4[3]; d4 ^= p4[4]; d5 ^= p4[5]; d6 ^= p4[6]; d7 ^= p4[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; p3 += 8; p4 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static void xor_32regs_p_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, unsigned long *p3, unsigned long *p4, unsigned long *p5) { long lines = bytes / (sizeof (long)) / 8 - 1; prefetchw(p1); prefetch(p2); prefetch(p3); prefetch(p4); prefetch(p5); do { register long d0, d1, d2, d3, d4, d5, d6, d7; prefetchw(p1+8); prefetch(p2+8); prefetch(p3+8); prefetch(p4+8); prefetch(p5+8); once_more: d0 = p1[0]; /* Pull the stuff into registers */ d1 = p1[1]; /* ... in bursts, if possible. */ d2 = p1[2]; d3 = p1[3]; d4 = p1[4]; d5 = p1[5]; d6 = p1[6]; d7 = p1[7]; d0 ^= p2[0]; d1 ^= p2[1]; d2 ^= p2[2]; d3 ^= p2[3]; d4 ^= p2[4]; d5 ^= p2[5]; d6 ^= p2[6]; d7 ^= p2[7]; d0 ^= p3[0]; d1 ^= p3[1]; d2 ^= p3[2]; d3 ^= p3[3]; d4 ^= p3[4]; d5 ^= p3[5]; d6 ^= p3[6]; d7 ^= p3[7]; d0 ^= p4[0]; d1 ^= p4[1]; d2 ^= p4[2]; d3 ^= p4[3]; d4 ^= p4[4]; d5 ^= p4[5]; d6 ^= p4[6]; d7 ^= p4[7]; d0 ^= p5[0]; d1 ^= p5[1]; d2 ^= p5[2]; d3 ^= p5[3]; d4 ^= p5[4]; d5 ^= p5[5]; d6 ^= p5[6]; d7 ^= p5[7]; p1[0] = d0; /* Store the result (in bursts) */ p1[1] = d1; p1[2] = d2; p1[3] = d3; p1[4] = d4; p1[5] = d5; p1[6] = d6; p1[7] = d7; p1 += 8; p2 += 8; p3 += 8; p4 += 8; p5 += 8; } while (--lines > 0); if (lines == 0) goto once_more; } static struct xor_block_template xor_block_8regs = { .name = "8regs", .do_2 = xor_8regs_2, .do_3 = xor_8regs_3, .do_4 = xor_8regs_4, .do_5 = xor_8regs_5, }; static struct xor_block_template xor_block_32regs = { .name = "32regs", .do_2 = xor_32regs_2, .do_3 = xor_32regs_3, .do_4 = xor_32regs_4, .do_5 = xor_32regs_5, }; static struct xor_block_template xor_block_8regs_p = { .name = "8regs_prefetch", .do_2 = xor_8regs_p_2, .do_3 = xor_8regs_p_3, .do_4 = xor_8regs_p_4, .do_5 = xor_8regs_p_5, }; static struct xor_block_template xor_block_32regs_p = { .name = "32regs_prefetch", .do_2 = xor_32regs_p_2, .do_3 = xor_32regs_p_3, .do_4 = xor_32regs_p_4, .do_5 = xor_32regs_p_5, }; #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); \ } while (0)