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authorDavid S. Miller <davem@sunset.davemloft.net>2006-02-25 20:16:29 -0500
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 04:14:03 -0500
commit36344762396ca868d6076c41a84bda25f1ed9d3c (patch)
tree7471ce9b78736e538417267f1bc27687a1b09542 /include/asm-sparc64
parentc4e9249b1924118693f298ee8d38f7fe43587af3 (diff)
[SPARC64]: Niagara optimized XOR functions for RAID.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/xor.h34
1 files changed, 30 insertions, 4 deletions
diff --git a/include/asm-sparc64/xor.h b/include/asm-sparc64/xor.h
index 8b3a7e4b6062..8ce3f1813e28 100644
--- a/include/asm-sparc64/xor.h
+++ b/include/asm-sparc64/xor.h
@@ -2,9 +2,11 @@
2 * include/asm-sparc64/xor.h 2 * include/asm-sparc64/xor.h
3 * 3 *
4 * High speed xor_block operation for RAID4/5 utilizing the 4 * High speed xor_block operation for RAID4/5 utilizing the
5 * UltraSparc Visual Instruction Set. 5 * UltraSparc Visual Instruction Set and Niagara block-init
6 * twin-load instructions.
6 * 7 *
7 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) 8 * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
9 * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
8 * 10 *
9 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by 12 * it under the terms of the GNU General Public License as published by
@@ -16,8 +18,7 @@
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */ 19 */
18 20
19#include <asm/pstate.h> 21#include <asm/spitfire.h>
20#include <asm/asi.h>
21 22
22extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *); 23extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
23extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *, 24extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
@@ -37,4 +38,29 @@ static struct xor_block_template xor_block_VIS = {
37 .do_5 = xor_vis_5, 38 .do_5 = xor_vis_5,
38}; 39};
39 40
40#define XOR_TRY_TEMPLATES xor_speed(&xor_block_VIS) 41extern void xor_niagara_2(unsigned long, unsigned long *, unsigned long *);
42extern void xor_niagara_3(unsigned long, unsigned long *, unsigned long *,
43 unsigned long *);
44extern void xor_niagara_4(unsigned long, unsigned long *, unsigned long *,
45 unsigned long *, unsigned long *);
46extern void 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 ? &xor_block_niagara : &xor_block_VIS)