739 lines
14 KiB
C
739 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* include/asm-generic/xor.h
|
|
*
|
|
* Generic optimized RAID-5 checksumming functions.
|
|
*/
|
|
|
|
#include <linux/prefetch.h>
|
|
|
|
static void
|
|
xor_8regs_2(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict p4,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict p4,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict p4,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict 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 * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict p4,
|
|
const unsigned long * __restrict 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 __maybe_unused = {
|
|
.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 __maybe_unused = {
|
|
.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)
|