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/* 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)