1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * include/asm/xor.h
 4 *
 5 * High speed xor_block operation for RAID4/5 utilizing the
 6 * UltraSparc Visual Instruction Set and Niagara block-init
 7 * twin-load instructions.
 8 *
 9 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
10 * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
 
 
 
 
 
 
 
 
 
11 */
12
13#include <asm/spitfire.h>
14
15void xor_vis_2(unsigned long bytes, unsigned long * __restrict p1,
16	       const unsigned long * __restrict p2);
17void xor_vis_3(unsigned long bytes, unsigned long * __restrict p1,
18	       const unsigned long * __restrict p2,
19	       const unsigned long * __restrict p3);
20void xor_vis_4(unsigned long bytes, unsigned long * __restrict p1,
21	       const unsigned long * __restrict p2,
22	       const unsigned long * __restrict p3,
23	       const unsigned long * __restrict p4);
24void xor_vis_5(unsigned long bytes, unsigned long * __restrict p1,
25	       const unsigned long * __restrict p2,
26	       const unsigned long * __restrict p3,
27	       const unsigned long * __restrict p4,
28	       const unsigned long * __restrict p5);
29
30/* XXX Ugh, write cheetah versions... -DaveM */
31
32static struct xor_block_template xor_block_VIS = {
33        .name	= "VIS",
34        .do_2	= xor_vis_2,
35        .do_3	= xor_vis_3,
36        .do_4	= xor_vis_4,
37        .do_5	= xor_vis_5,
38};
39
40void xor_niagara_2(unsigned long bytes, unsigned long * __restrict p1,
41		   const unsigned long * __restrict p2);
42void xor_niagara_3(unsigned long bytes, unsigned long * __restrict p1,
43		   const unsigned long * __restrict p2,
44		   const unsigned long * __restrict p3);
45void xor_niagara_4(unsigned long bytes, unsigned long * __restrict p1,
46		   const unsigned long * __restrict p2,
47		   const unsigned long * __restrict p3,
48		   const unsigned long * __restrict p4);
49void xor_niagara_5(unsigned long bytes, unsigned long * __restrict p1,
50		   const unsigned long * __restrict p2,
51		   const unsigned long * __restrict p3,
52		   const unsigned long * __restrict p4,
53		   const unsigned long * __restrict p5);
54
55static struct xor_block_template xor_block_niagara = {
56        .name	= "Niagara",
57        .do_2	= xor_niagara_2,
58        .do_3	= xor_niagara_3,
59        .do_4	= xor_niagara_4,
60        .do_5	= xor_niagara_5,
61};
62
63#undef XOR_TRY_TEMPLATES
64#define XOR_TRY_TEMPLATES				\
65	do {						\
66		xor_speed(&xor_block_VIS);		\
67		xor_speed(&xor_block_niagara);		\
68	} while (0)
69
70/* For VIS for everything except Niagara.  */
71#define XOR_SELECT_TEMPLATE(FASTEST) \
72	((tlb_type == hypervisor && \
73	  (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \
74	   sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \
75	   sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \
76	   sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \
77	   sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \
78	 &xor_block_niagara : \
79	 &xor_block_VIS)

 
 1/*
 2 * include/asm/xor.h
 3 *
 4 * High speed xor_block operation for RAID4/5 utilizing the
 5 * UltraSparc Visual Instruction Set and Niagara block-init
 6 * twin-load instructions.
 7 *
 8 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
 9 * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * You should have received a copy of the GNU General Public License
17 * (for example /usr/src/linux/COPYING); if not, write to the Free
18 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21#include <asm/spitfire.h>
22
23void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
24void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
25	       unsigned long *);
26void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
27	       unsigned long *, unsigned long *);
28void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
29	       unsigned long *, unsigned long *, unsigned long *);
 
 
 
 
 
 
 
30
31/* XXX Ugh, write cheetah versions... -DaveM */
32
33static struct xor_block_template xor_block_VIS = {
34        .name	= "VIS",
35        .do_2	= xor_vis_2,
36        .do_3	= xor_vis_3,
37        .do_4	= xor_vis_4,
38        .do_5	= xor_vis_5,
39};
40
41void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
42void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
43		   unsigned long *);
44void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
45		   unsigned long *, unsigned long *);
46void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
47		   unsigned long *, unsigned long *, unsigned long *);
 
 
 
 
 
 
 
48
49static struct xor_block_template xor_block_niagara = {
50        .name	= "Niagara",
51        .do_2	= xor_niagara_2,
52        .do_3	= xor_niagara_3,
53        .do_4	= xor_niagara_4,
54        .do_5	= xor_niagara_5,
55};
56
57#undef XOR_TRY_TEMPLATES
58#define XOR_TRY_TEMPLATES				\
59	do {						\
60		xor_speed(&xor_block_VIS);		\
61		xor_speed(&xor_block_niagara);		\
62	} while (0)
63
64/* For VIS for everything except Niagara.  */
65#define XOR_SELECT_TEMPLATE(FASTEST) \
66	((tlb_type == hypervisor && \
67	  (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \
68	   sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \
69	   sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \
70	   sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \
71	   sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \
72	 &xor_block_niagara : \
73	 &xor_block_VIS)