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1275 |
phoenix |
/*
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* include/asm-sparc/xor.h
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*
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* Optimized RAID-5 checksumming functions for 32-bit Sparc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* You should have received a copy of the GNU General Public License
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* (for example /usr/src/linux/COPYING); if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* High speed xor_block operation for RAID4/5 utilizing the
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* ldd/std SPARC instructions.
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*
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* Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
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*/
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static void
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sparc_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
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{
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int lines = bytes / (sizeof (long)) / 8;
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do {
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__asm__ __volatile__(
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"ldd [%0 + 0x00], %%g2\n\t"
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"ldd [%0 + 0x08], %%g4\n\t"
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"ldd [%0 + 0x10], %%o0\n\t"
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"ldd [%0 + 0x18], %%o2\n\t"
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"ldd [%1 + 0x00], %%o4\n\t"
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"ldd [%1 + 0x08], %%l0\n\t"
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"ldd [%1 + 0x10], %%l2\n\t"
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"ldd [%1 + 0x18], %%l4\n\t"
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"xor %%g2, %%o4, %%g2\n\t"
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"xor %%g3, %%o5, %%g3\n\t"
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"xor %%g4, %%l0, %%g4\n\t"
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"xor %%g5, %%l1, %%g5\n\t"
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"xor %%o0, %%l2, %%o0\n\t"
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"xor %%o1, %%l3, %%o1\n\t"
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"xor %%o2, %%l4, %%o2\n\t"
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"xor %%o3, %%l5, %%o3\n\t"
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"std %%g2, [%0 + 0x00]\n\t"
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"std %%g4, [%0 + 0x08]\n\t"
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"std %%o0, [%0 + 0x10]\n\t"
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"std %%o2, [%0 + 0x18]\n"
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:
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: "r" (p1), "r" (p2)
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: "g2", "g3", "g4", "g5",
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"o0", "o1", "o2", "o3", "o4", "o5",
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"l0", "l1", "l2", "l3", "l4", "l5");
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p1 += 8;
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p2 += 8;
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} while (--lines > 0);
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}
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static void
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sparc_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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unsigned long *p3)
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{
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int lines = bytes / (sizeof (long)) / 8;
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do {
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__asm__ __volatile__(
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"ldd [%0 + 0x00], %%g2\n\t"
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"ldd [%0 + 0x08], %%g4\n\t"
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"ldd [%0 + 0x10], %%o0\n\t"
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"ldd [%0 + 0x18], %%o2\n\t"
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"ldd [%1 + 0x00], %%o4\n\t"
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"ldd [%1 + 0x08], %%l0\n\t"
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"ldd [%1 + 0x10], %%l2\n\t"
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"ldd [%1 + 0x18], %%l4\n\t"
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"xor %%g2, %%o4, %%g2\n\t"
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"xor %%g3, %%o5, %%g3\n\t"
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"ldd [%2 + 0x00], %%o4\n\t"
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"xor %%g4, %%l0, %%g4\n\t"
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"xor %%g5, %%l1, %%g5\n\t"
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"ldd [%2 + 0x08], %%l0\n\t"
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"xor %%o0, %%l2, %%o0\n\t"
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"xor %%o1, %%l3, %%o1\n\t"
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"ldd [%2 + 0x10], %%l2\n\t"
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"xor %%o2, %%l4, %%o2\n\t"
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"xor %%o3, %%l5, %%o3\n\t"
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"ldd [%2 + 0x18], %%l4\n\t"
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"xor %%g2, %%o4, %%g2\n\t"
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"xor %%g3, %%o5, %%g3\n\t"
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"xor %%g4, %%l0, %%g4\n\t"
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"xor %%g5, %%l1, %%g5\n\t"
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"xor %%o0, %%l2, %%o0\n\t"
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"xor %%o1, %%l3, %%o1\n\t"
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"xor %%o2, %%l4, %%o2\n\t"
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"xor %%o3, %%l5, %%o3\n\t"
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"std %%g2, [%0 + 0x00]\n\t"
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"std %%g4, [%0 + 0x08]\n\t"
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"std %%o0, [%0 + 0x10]\n\t"
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"std %%o2, [%0 + 0x18]\n"
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:
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: "r" (p1), "r" (p2), "r" (p3)
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: "g2", "g3", "g4", "g5",
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"o0", "o1", "o2", "o3", "o4", "o5",
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"l0", "l1", "l2", "l3", "l4", "l5");
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p1 += 8;
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p2 += 8;
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p3 += 8;
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} while (--lines > 0);
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}
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static void
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sparc_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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unsigned long *p3, unsigned long *p4)
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{
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int lines = bytes / (sizeof (long)) / 8;
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do {
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__asm__ __volatile__(
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"ldd [%0 + 0x00], %%g2\n\t"
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"ldd [%0 + 0x08], %%g4\n\t"
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"ldd [%0 + 0x10], %%o0\n\t"
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"ldd [%0 + 0x18], %%o2\n\t"
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"ldd [%1 + 0x00], %%o4\n\t"
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"ldd [%1 + 0x08], %%l0\n\t"
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"ldd [%1 + 0x10], %%l2\n\t"
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"ldd [%1 + 0x18], %%l4\n\t"
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"xor %%g2, %%o4, %%g2\n\t"
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"xor %%g3, %%o5, %%g3\n\t"
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"ldd [%2 + 0x00], %%o4\n\t"
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"xor %%g4, %%l0, %%g4\n\t"
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"xor %%g5, %%l1, %%g5\n\t"
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"ldd [%2 + 0x08], %%l0\n\t"
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"xor %%o0, %%l2, %%o0\n\t"
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"xor %%o1, %%l3, %%o1\n\t"
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"ldd [%2 + 0x10], %%l2\n\t"
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"xor %%o2, %%l4, %%o2\n\t"
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"xor %%o3, %%l5, %%o3\n\t"
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"ldd [%2 + 0x18], %%l4\n\t"
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"xor %%g2, %%o4, %%g2\n\t"
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"xor %%g3, %%o5, %%g3\n\t"
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"ldd [%3 + 0x00], %%o4\n\t"
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"xor %%g4, %%l0, %%g4\n\t"
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"xor %%g5, %%l1, %%g5\n\t"
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"ldd [%3 + 0x08], %%l0\n\t"
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"xor %%o0, %%l2, %%o0\n\t"
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"xor %%o1, %%l3, %%o1\n\t"
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"ldd [%3 + 0x10], %%l2\n\t"
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"xor %%o2, %%l4, %%o2\n\t"
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"xor %%o3, %%l5, %%o3\n\t"
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"ldd [%3 + 0x18], %%l4\n\t"
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"xor %%g2, %%o4, %%g2\n\t"
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"xor %%g3, %%o5, %%g3\n\t"
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"xor %%g4, %%l0, %%g4\n\t"
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"xor %%g5, %%l1, %%g5\n\t"
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"xor %%o0, %%l2, %%o0\n\t"
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"xor %%o1, %%l3, %%o1\n\t"
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"xor %%o2, %%l4, %%o2\n\t"
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"xor %%o3, %%l5, %%o3\n\t"
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| 159 |
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"std %%g2, [%0 + 0x00]\n\t"
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"std %%g4, [%0 + 0x08]\n\t"
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"std %%o0, [%0 + 0x10]\n\t"
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"std %%o2, [%0 + 0x18]\n"
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:
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: "r" (p1), "r" (p2), "r" (p3), "r" (p4)
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: "g2", "g3", "g4", "g5",
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"o0", "o1", "o2", "o3", "o4", "o5",
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"l0", "l1", "l2", "l3", "l4", "l5");
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p1 += 8;
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p2 += 8;
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p3 += 8;
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p4 += 8;
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} while (--lines > 0);
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}
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| 175 |
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static void
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sparc_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
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unsigned long *p3, unsigned long *p4, unsigned long *p5)
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{
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int lines = bytes / (sizeof (long)) / 8;
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| 180 |
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| 181 |
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do {
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__asm__ __volatile__(
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"ldd [%0 + 0x00], %%g2\n\t"
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"ldd [%0 + 0x08], %%g4\n\t"
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| 185 |
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"ldd [%0 + 0x10], %%o0\n\t"
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| 186 |
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"ldd [%0 + 0x18], %%o2\n\t"
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| 187 |
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"ldd [%1 + 0x00], %%o4\n\t"
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| 188 |
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"ldd [%1 + 0x08], %%l0\n\t"
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| 189 |
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"ldd [%1 + 0x10], %%l2\n\t"
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| 190 |
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"ldd [%1 + 0x18], %%l4\n\t"
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| 191 |
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"xor %%g2, %%o4, %%g2\n\t"
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| 192 |
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"xor %%g3, %%o5, %%g3\n\t"
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| 193 |
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"ldd [%2 + 0x00], %%o4\n\t"
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| 194 |
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"xor %%g4, %%l0, %%g4\n\t"
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| 195 |
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"xor %%g5, %%l1, %%g5\n\t"
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| 196 |
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"ldd [%2 + 0x08], %%l0\n\t"
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| 197 |
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"xor %%o0, %%l2, %%o0\n\t"
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| 198 |
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"xor %%o1, %%l3, %%o1\n\t"
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| 199 |
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"ldd [%2 + 0x10], %%l2\n\t"
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| 200 |
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"xor %%o2, %%l4, %%o2\n\t"
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| 201 |
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"xor %%o3, %%l5, %%o3\n\t"
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| 202 |
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"ldd [%2 + 0x18], %%l4\n\t"
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| 203 |
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"xor %%g2, %%o4, %%g2\n\t"
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| 204 |
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"xor %%g3, %%o5, %%g3\n\t"
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| 205 |
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"ldd [%3 + 0x00], %%o4\n\t"
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| 206 |
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"xor %%g4, %%l0, %%g4\n\t"
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| 207 |
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"xor %%g5, %%l1, %%g5\n\t"
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| 208 |
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"ldd [%3 + 0x08], %%l0\n\t"
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| 209 |
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"xor %%o0, %%l2, %%o0\n\t"
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| 210 |
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"xor %%o1, %%l3, %%o1\n\t"
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| 211 |
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"ldd [%3 + 0x10], %%l2\n\t"
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| 212 |
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"xor %%o2, %%l4, %%o2\n\t"
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| 213 |
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"xor %%o3, %%l5, %%o3\n\t"
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| 214 |
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"ldd [%3 + 0x18], %%l4\n\t"
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| 215 |
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"xor %%g2, %%o4, %%g2\n\t"
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| 216 |
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"xor %%g3, %%o5, %%g3\n\t"
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| 217 |
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"ldd [%4 + 0x00], %%o4\n\t"
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| 218 |
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"xor %%g4, %%l0, %%g4\n\t"
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| 219 |
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"xor %%g5, %%l1, %%g5\n\t"
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| 220 |
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"ldd [%4 + 0x08], %%l0\n\t"
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| 221 |
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"xor %%o0, %%l2, %%o0\n\t"
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| 222 |
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"xor %%o1, %%l3, %%o1\n\t"
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| 223 |
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"ldd [%4 + 0x10], %%l2\n\t"
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| 224 |
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"xor %%o2, %%l4, %%o2\n\t"
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| 225 |
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"xor %%o3, %%l5, %%o3\n\t"
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| 226 |
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"ldd [%4 + 0x18], %%l4\n\t"
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| 227 |
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"xor %%g2, %%o4, %%g2\n\t"
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| 228 |
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"xor %%g3, %%o5, %%g3\n\t"
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| 229 |
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"xor %%g4, %%l0, %%g4\n\t"
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| 230 |
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"xor %%g5, %%l1, %%g5\n\t"
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| 231 |
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"xor %%o0, %%l2, %%o0\n\t"
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| 232 |
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"xor %%o1, %%l3, %%o1\n\t"
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| 233 |
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"xor %%o2, %%l4, %%o2\n\t"
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| 234 |
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"xor %%o3, %%l5, %%o3\n\t"
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| 235 |
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"std %%g2, [%0 + 0x00]\n\t"
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| 236 |
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"std %%g4, [%0 + 0x08]\n\t"
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| 237 |
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"std %%o0, [%0 + 0x10]\n\t"
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| 238 |
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"std %%o2, [%0 + 0x18]\n"
|
| 239 |
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:
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| 240 |
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: "r" (p1), "r" (p2), "r" (p3), "r" (p4), "r" (p5)
|
| 241 |
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: "g2", "g3", "g4", "g5",
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| 242 |
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"o0", "o1", "o2", "o3", "o4", "o5",
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| 243 |
|
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"l0", "l1", "l2", "l3", "l4", "l5");
|
| 244 |
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p1 += 8;
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| 245 |
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p2 += 8;
|
| 246 |
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p3 += 8;
|
| 247 |
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p4 += 8;
|
| 248 |
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p5 += 8;
|
| 249 |
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} while (--lines > 0);
|
| 250 |
|
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}
|
| 251 |
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|
| 252 |
|
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static struct xor_block_template xor_block_SPARC = {
|
| 253 |
|
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name: "SPARC",
|
| 254 |
|
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do_2: sparc_2,
|
| 255 |
|
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do_3: sparc_3,
|
| 256 |
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do_4: sparc_4,
|
| 257 |
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do_5: sparc_5,
|
| 258 |
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};
|
| 259 |
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| 260 |
|
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/* For grins, also test the generic routines. */
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| 261 |
|
|
#include <asm-generic/xor.h>
|
| 262 |
|
|
|
| 263 |
|
|
#undef XOR_TRY_TEMPLATES
|
| 264 |
|
|
#define XOR_TRY_TEMPLATES \
|
| 265 |
|
|
do { \
|
| 266 |
|
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xor_speed(&xor_block_8regs); \
|
| 267 |
|
|
xor_speed(&xor_block_32regs); \
|
| 268 |
|
|
xor_speed(&xor_block_SPARC); \
|
| 269 |
|
|
} while (0)
|
