diff options
Diffstat (limited to 'arch/sparc/include/asm/xor_32.h')
-rw-r--r-- | arch/sparc/include/asm/xor_32.h | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/xor_32.h b/arch/sparc/include/asm/xor_32.h new file mode 100644 index 000000000..3e5af37e4 --- /dev/null +++ b/arch/sparc/include/asm/xor_32.h @@ -0,0 +1,261 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * include/asm/xor.h + * + * Optimized RAID-5 checksumming functions for 32-bit Sparc. + */ + +/* + * 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) |