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authorDavid S. Miller <davem@sunset.davemloft.net>2006-02-25 17:16:29 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:14:03 -0800
commit36344762396ca868d6076c41a84bda25f1ed9d3c (patch)
tree7471ce9b78736e538417267f1bc27687a1b09542 /include
parentc4e9249b1924118693f298ee8d38f7fe43587af3 (diff)
downloadop-kernel-dev-36344762396ca868d6076c41a84bda25f1ed9d3c.zip
op-kernel-dev-36344762396ca868d6076c41a84bda25f1ed9d3c.tar.gz
[SPARC64]: Niagara optimized XOR functions for RAID.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-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 8b3a7e4..8ce3f18 100644
--- a/include/asm-sparc64/xor.h
+++ b/include/asm-sparc64/xor.h
@@ -2,9 +2,11 @@
* include/asm-sparc64/xor.h
*
* High speed xor_block operation for RAID4/5 utilizing the
- * UltraSparc Visual Instruction Set.
+ * 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
@@ -16,8 +18,7 @@
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <asm/pstate.h>
-#include <asm/asi.h>
+#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 *,
@@ -37,4 +38,29 @@ static struct xor_block_template xor_block_VIS = {
.do_5 = xor_vis_5,
};
-#define XOR_TRY_TEMPLATES xor_speed(&xor_block_VIS)
+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 ? &xor_block_niagara : &xor_block_VIS)
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