mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 22:21:40 +00:00
af1a8899d2
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 20 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170858.552543146@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
711 lines
13 KiB
C
711 lines
13 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 *p1, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *p4, unsigned long *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 *p1, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *p4, unsigned long *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 *p1, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *p4, unsigned long *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 *p1, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *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 *p1, unsigned long *p2,
|
|
unsigned long *p3, unsigned long *p4, unsigned long *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)
|