80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* include/asm/xor.h
|
|
*
|
|
* High speed xor_block operation for RAID4/5 utilizing the
|
|
* UltraSparc Visual Instruction Set and Niagara block-init
|
|
* twin-load instructions.
|
|
*
|
|
* Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
|
|
* Copyright (C) 2006 David S. Miller <davem@davemloft.net>
|
|
*/
|
|
|
|
#include <asm/spitfire.h>
|
|
|
|
void xor_vis_2(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict p2);
|
|
void xor_vis_3(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3);
|
|
void xor_vis_4(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict p4);
|
|
void xor_vis_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);
|
|
|
|
/* XXX Ugh, write cheetah versions... -DaveM */
|
|
|
|
static struct xor_block_template xor_block_VIS = {
|
|
.name = "VIS",
|
|
.do_2 = xor_vis_2,
|
|
.do_3 = xor_vis_3,
|
|
.do_4 = xor_vis_4,
|
|
.do_5 = xor_vis_5,
|
|
};
|
|
|
|
void xor_niagara_2(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict p2);
|
|
void xor_niagara_3(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3);
|
|
void xor_niagara_4(unsigned long bytes, unsigned long * __restrict p1,
|
|
const unsigned long * __restrict p2,
|
|
const unsigned long * __restrict p3,
|
|
const unsigned long * __restrict p4);
|
|
void xor_niagara_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);
|
|
|
|
static struct xor_block_template xor_block_niagara = {
|
|
.name = "Niagara",
|
|
.do_2 = xor_niagara_2,
|
|
.do_3 = xor_niagara_3,
|
|
.do_4 = xor_niagara_4,
|
|
.do_5 = xor_niagara_5,
|
|
};
|
|
|
|
#undef XOR_TRY_TEMPLATES
|
|
#define XOR_TRY_TEMPLATES \
|
|
do { \
|
|
xor_speed(&xor_block_VIS); \
|
|
xor_speed(&xor_block_niagara); \
|
|
} while (0)
|
|
|
|
/* For VIS for everything except Niagara. */
|
|
#define XOR_SELECT_TEMPLATE(FASTEST) \
|
|
((tlb_type == hypervisor && \
|
|
(sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \
|
|
sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \
|
|
sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \
|
|
sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \
|
|
sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \
|
|
&xor_block_niagara : \
|
|
&xor_block_VIS)
|