147 lines
3.1 KiB
C
147 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <linux/prefetch.h>
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#include "xor_impl.h"
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static void
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xor_8regs_p_2(unsigned long bytes, unsigned long * __restrict p1,
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const unsigned long * __restrict p2)
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{
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long lines = bytes / (sizeof (long)) / 8 - 1;
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prefetchw(p1);
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prefetch(p2);
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do {
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prefetchw(p1+8);
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prefetch(p2+8);
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once_more:
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p1[0] ^= p2[0];
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p1[1] ^= p2[1];
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p1[2] ^= p2[2];
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p1[3] ^= p2[3];
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p1[4] ^= p2[4];
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p1[5] ^= p2[5];
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p1[6] ^= p2[6];
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p1[7] ^= p2[7];
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p1 += 8;
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p2 += 8;
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} while (--lines > 0);
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if (lines == 0)
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goto once_more;
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}
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static void
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xor_8regs_p_3(unsigned long bytes, unsigned long * __restrict p1,
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const unsigned long * __restrict p2,
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const unsigned long * __restrict p3)
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{
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long lines = bytes / (sizeof (long)) / 8 - 1;
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prefetchw(p1);
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prefetch(p2);
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prefetch(p3);
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do {
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prefetchw(p1+8);
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prefetch(p2+8);
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prefetch(p3+8);
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once_more:
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p1[0] ^= p2[0] ^ p3[0];
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p1[1] ^= p2[1] ^ p3[1];
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p1[2] ^= p2[2] ^ p3[2];
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p1[3] ^= p2[3] ^ p3[3];
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p1[4] ^= p2[4] ^ p3[4];
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p1[5] ^= p2[5] ^ p3[5];
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p1[6] ^= p2[6] ^ p3[6];
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p1[7] ^= p2[7] ^ p3[7];
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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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if (lines == 0)
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goto once_more;
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}
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static void
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xor_8regs_p_4(unsigned long bytes, unsigned long * __restrict p1,
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const unsigned long * __restrict p2,
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const unsigned long * __restrict p3,
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const unsigned long * __restrict p4)
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{
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long lines = bytes / (sizeof (long)) / 8 - 1;
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prefetchw(p1);
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prefetch(p2);
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prefetch(p3);
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prefetch(p4);
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do {
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prefetchw(p1+8);
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prefetch(p2+8);
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prefetch(p3+8);
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prefetch(p4+8);
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once_more:
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p1[0] ^= p2[0] ^ p3[0] ^ p4[0];
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p1[1] ^= p2[1] ^ p3[1] ^ p4[1];
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p1[2] ^= p2[2] ^ p3[2] ^ p4[2];
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p1[3] ^= p2[3] ^ p3[3] ^ p4[3];
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p1[4] ^= p2[4] ^ p3[4] ^ p4[4];
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p1[5] ^= p2[5] ^ p3[5] ^ p4[5];
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p1[6] ^= p2[6] ^ p3[6] ^ p4[6];
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p1[7] ^= p2[7] ^ p3[7] ^ p4[7];
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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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if (lines == 0)
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goto once_more;
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}
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static void
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xor_8regs_p_5(unsigned long bytes, unsigned long * __restrict p1,
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const unsigned long * __restrict p2,
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const unsigned long * __restrict p3,
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const unsigned long * __restrict p4,
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const unsigned long * __restrict p5)
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{
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long lines = bytes / (sizeof (long)) / 8 - 1;
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prefetchw(p1);
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prefetch(p2);
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prefetch(p3);
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prefetch(p4);
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prefetch(p5);
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do {
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prefetchw(p1+8);
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prefetch(p2+8);
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prefetch(p3+8);
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prefetch(p4+8);
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prefetch(p5+8);
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once_more:
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p1[0] ^= p2[0] ^ p3[0] ^ p4[0] ^ p5[0];
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p1[1] ^= p2[1] ^ p3[1] ^ p4[1] ^ p5[1];
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p1[2] ^= p2[2] ^ p3[2] ^ p4[2] ^ p5[2];
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p1[3] ^= p2[3] ^ p3[3] ^ p4[3] ^ p5[3];
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p1[4] ^= p2[4] ^ p3[4] ^ p4[4] ^ p5[4];
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p1[5] ^= p2[5] ^ p3[5] ^ p4[5] ^ p5[5];
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p1[6] ^= p2[6] ^ p3[6] ^ p4[6] ^ p5[6];
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p1[7] ^= p2[7] ^ p3[7] ^ p4[7] ^ p5[7];
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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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p5 += 8;
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} while (--lines > 0);
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if (lines == 0)
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goto once_more;
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}
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DO_XOR_BLOCKS(8regs_p, xor_8regs_p_2, xor_8regs_p_3, xor_8regs_p_4,
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xor_8regs_p_5);
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struct xor_block_template xor_block_8regs_p = {
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.name = "8regs_prefetch",
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.xor_gen = xor_gen_8regs_p,
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};
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