| /* |
| * include/asm/xor.h |
| * |
| * Optimized RAID-5 checksumming functions for 32-bit Sparc. |
| * |
| * 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 xor_block operation for RAID4/5 utilizing the |
| * ldd/std SPARC instructions. |
| * |
| * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz) |
| */ |
| |
| static void |
| sparc_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) |
| { |
| int lines = bytes / (sizeof (long)) / 8; |
| |
| do { |
| __asm__ __volatile__( |
| "ldd [%0 + 0x00], %%g2\n\t" |
| "ldd [%0 + 0x08], %%g4\n\t" |
| "ldd [%0 + 0x10], %%o0\n\t" |
| "ldd [%0 + 0x18], %%o2\n\t" |
| "ldd [%1 + 0x00], %%o4\n\t" |
| "ldd [%1 + 0x08], %%l0\n\t" |
| "ldd [%1 + 0x10], %%l2\n\t" |
| "ldd [%1 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "std %%g2, [%0 + 0x00]\n\t" |
| "std %%g4, [%0 + 0x08]\n\t" |
| "std %%o0, [%0 + 0x10]\n\t" |
| "std %%o2, [%0 + 0x18]\n" |
| : |
| : "r" (p1), "r" (p2) |
| : "g2", "g3", "g4", "g5", |
| "o0", "o1", "o2", "o3", "o4", "o5", |
| "l0", "l1", "l2", "l3", "l4", "l5"); |
| p1 += 8; |
| p2 += 8; |
| } while (--lines > 0); |
| } |
| |
| static void |
| sparc_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, |
| unsigned long *p3) |
| { |
| int lines = bytes / (sizeof (long)) / 8; |
| |
| do { |
| __asm__ __volatile__( |
| "ldd [%0 + 0x00], %%g2\n\t" |
| "ldd [%0 + 0x08], %%g4\n\t" |
| "ldd [%0 + 0x10], %%o0\n\t" |
| "ldd [%0 + 0x18], %%o2\n\t" |
| "ldd [%1 + 0x00], %%o4\n\t" |
| "ldd [%1 + 0x08], %%l0\n\t" |
| "ldd [%1 + 0x10], %%l2\n\t" |
| "ldd [%1 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "ldd [%2 + 0x00], %%o4\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "ldd [%2 + 0x08], %%l0\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "ldd [%2 + 0x10], %%l2\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "ldd [%2 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "std %%g2, [%0 + 0x00]\n\t" |
| "std %%g4, [%0 + 0x08]\n\t" |
| "std %%o0, [%0 + 0x10]\n\t" |
| "std %%o2, [%0 + 0x18]\n" |
| : |
| : "r" (p1), "r" (p2), "r" (p3) |
| : "g2", "g3", "g4", "g5", |
| "o0", "o1", "o2", "o3", "o4", "o5", |
| "l0", "l1", "l2", "l3", "l4", "l5"); |
| p1 += 8; |
| p2 += 8; |
| p3 += 8; |
| } while (--lines > 0); |
| } |
| |
| static void |
| sparc_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, |
| unsigned long *p3, unsigned long *p4) |
| { |
| int lines = bytes / (sizeof (long)) / 8; |
| |
| do { |
| __asm__ __volatile__( |
| "ldd [%0 + 0x00], %%g2\n\t" |
| "ldd [%0 + 0x08], %%g4\n\t" |
| "ldd [%0 + 0x10], %%o0\n\t" |
| "ldd [%0 + 0x18], %%o2\n\t" |
| "ldd [%1 + 0x00], %%o4\n\t" |
| "ldd [%1 + 0x08], %%l0\n\t" |
| "ldd [%1 + 0x10], %%l2\n\t" |
| "ldd [%1 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "ldd [%2 + 0x00], %%o4\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "ldd [%2 + 0x08], %%l0\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "ldd [%2 + 0x10], %%l2\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "ldd [%2 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "ldd [%3 + 0x00], %%o4\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "ldd [%3 + 0x08], %%l0\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "ldd [%3 + 0x10], %%l2\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "ldd [%3 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "std %%g2, [%0 + 0x00]\n\t" |
| "std %%g4, [%0 + 0x08]\n\t" |
| "std %%o0, [%0 + 0x10]\n\t" |
| "std %%o2, [%0 + 0x18]\n" |
| : |
| : "r" (p1), "r" (p2), "r" (p3), "r" (p4) |
| : "g2", "g3", "g4", "g5", |
| "o0", "o1", "o2", "o3", "o4", "o5", |
| "l0", "l1", "l2", "l3", "l4", "l5"); |
| p1 += 8; |
| p2 += 8; |
| p3 += 8; |
| p4 += 8; |
| } while (--lines > 0); |
| } |
| |
| static void |
| sparc_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, |
| unsigned long *p3, unsigned long *p4, unsigned long *p5) |
| { |
| int lines = bytes / (sizeof (long)) / 8; |
| |
| do { |
| __asm__ __volatile__( |
| "ldd [%0 + 0x00], %%g2\n\t" |
| "ldd [%0 + 0x08], %%g4\n\t" |
| "ldd [%0 + 0x10], %%o0\n\t" |
| "ldd [%0 + 0x18], %%o2\n\t" |
| "ldd [%1 + 0x00], %%o4\n\t" |
| "ldd [%1 + 0x08], %%l0\n\t" |
| "ldd [%1 + 0x10], %%l2\n\t" |
| "ldd [%1 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "ldd [%2 + 0x00], %%o4\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "ldd [%2 + 0x08], %%l0\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "ldd [%2 + 0x10], %%l2\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "ldd [%2 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "ldd [%3 + 0x00], %%o4\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "ldd [%3 + 0x08], %%l0\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "ldd [%3 + 0x10], %%l2\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "ldd [%3 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "ldd [%4 + 0x00], %%o4\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "ldd [%4 + 0x08], %%l0\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "ldd [%4 + 0x10], %%l2\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "ldd [%4 + 0x18], %%l4\n\t" |
| "xor %%g2, %%o4, %%g2\n\t" |
| "xor %%g3, %%o5, %%g3\n\t" |
| "xor %%g4, %%l0, %%g4\n\t" |
| "xor %%g5, %%l1, %%g5\n\t" |
| "xor %%o0, %%l2, %%o0\n\t" |
| "xor %%o1, %%l3, %%o1\n\t" |
| "xor %%o2, %%l4, %%o2\n\t" |
| "xor %%o3, %%l5, %%o3\n\t" |
| "std %%g2, [%0 + 0x00]\n\t" |
| "std %%g4, [%0 + 0x08]\n\t" |
| "std %%o0, [%0 + 0x10]\n\t" |
| "std %%o2, [%0 + 0x18]\n" |
| : |
| : "r" (p1), "r" (p2), "r" (p3), "r" (p4), "r" (p5) |
| : "g2", "g3", "g4", "g5", |
| "o0", "o1", "o2", "o3", "o4", "o5", |
| "l0", "l1", "l2", "l3", "l4", "l5"); |
| p1 += 8; |
| p2 += 8; |
| p3 += 8; |
| p4 += 8; |
| p5 += 8; |
| } while (--lines > 0); |
| } |
| |
| static struct xor_block_template xor_block_SPARC = { |
| .name = "SPARC", |
| .do_2 = sparc_2, |
| .do_3 = sparc_3, |
| .do_4 = sparc_4, |
| .do_5 = sparc_5, |
| }; |
| |
| /* For grins, also test 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_32regs); \ |
| xor_speed(&xor_block_SPARC); \ |
| } while (0) |
