4 * High speed xor_block operation for RAID4/5 utilizing the
5 * UltraSparc Visual Instruction Set and Niagara block-init
6 * twin-load instructions.
8 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
9 * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
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)
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.
21 #include <asm/spitfire.h>
23 extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
24 extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
26 extern void xor_vis_4(unsigned long, unsigned long *, unsigned long *,
27 unsigned long *, unsigned long *);
28 extern void xor_vis_5(unsigned long, unsigned long *, unsigned long *,
29 unsigned long *, unsigned long *, unsigned long *);
31 /* XXX Ugh, write cheetah versions... -DaveM */
33 static struct xor_block_template xor_block_VIS
= {
41 extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
42 extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
44 extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
45 unsigned long *, unsigned long *);
46 extern void xor_niagara_5(unsigned long, unsigned long *, unsigned long *,
47 unsigned long *, unsigned long *, unsigned long *);
49 static struct xor_block_template xor_block_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
,
57 #undef XOR_TRY_TEMPLATES
58 #define XOR_TRY_TEMPLATES \
60 xor_speed(&xor_block_VIS); \
61 xor_speed(&xor_block_niagara); \
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 : \