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, unsigned long *, unsigned long *);
16void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
17	       unsigned long *);
18void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
19	       unsigned long *, unsigned long *);
20void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
21	       unsigned long *, unsigned long *, unsigned long *);
 
 
 
 
 
 
 
22
23/* XXX Ugh, write cheetah versions... -DaveM */
24
25static struct xor_block_template xor_block_VIS = {
26        .name	= "VIS",
27        .do_2	= xor_vis_2,
28        .do_3	= xor_vis_3,
29        .do_4	= xor_vis_4,
30        .do_5	= xor_vis_5,
31};
32
33void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
34void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
35		   unsigned long *);
36void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
37		   unsigned long *, unsigned long *);
38void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
39		   unsigned long *, unsigned long *, unsigned long *);
 
 
 
 
 
 
 
40
41static struct xor_block_template xor_block_niagara = {
42        .name	= "Niagara",
43        .do_2	= xor_niagara_2,
44        .do_3	= xor_niagara_3,
45        .do_4	= xor_niagara_4,
46        .do_5	= xor_niagara_5,
47};
48
49#undef XOR_TRY_TEMPLATES
50#define XOR_TRY_TEMPLATES				\
51	do {						\
52		xor_speed(&xor_block_VIS);		\
53		xor_speed(&xor_block_niagara);		\
54	} while (0)
55
56/* For VIS for everything except Niagara.  */
57#define XOR_SELECT_TEMPLATE(FASTEST) \
58	((tlb_type == hypervisor && \
59	  (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 || \
60	   sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || \
61	   sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || \
62	   sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || \
63	   sun4v_chip_type == SUN4V_CHIP_NIAGARA5)) ? \
64	 &xor_block_niagara : \
65	 &xor_block_VIS)

 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)