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/*
* 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>
*
* 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.
*/
#include <asm/spitfire.h>
extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
unsigned long *);
extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *);
extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *, unsigned long *);
/* 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,
};
extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
unsigned long *);
extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *);
extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
unsigned long *, unsigned long *, unsigned long *);
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)