From f92e2f5f889803306e50c06e17ee330403e91b8d Mon Sep 17 00:00:00 2001
From: Mike Miller <mike.miller@hp.com>
Date: Wed, 6 Dec 2006 20:35:04 -0800
Subject: [PATCH] cciss: disable DMA prefetch on P600

Unconditionally disable DMA prefetch on the P600 controller.  An ASIC bug may
result in prefetching beyond the end of physical memory.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 drivers/block/cciss_cmd.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/block/cciss_cmd.h')

diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h
index 4af7c4c0c7a..b2147cca5ac 100644
--- a/drivers/block/cciss_cmd.h
+++ b/drivers/block/cciss_cmd.h
@@ -55,6 +55,7 @@
 #define I2O_INT_MASK            0x34
 #define I2O_IBPOST_Q            0x40
 #define I2O_OBPOST_Q            0x44
+#define I2O_DMA1_CFG		0x214
 
 //Configuration Table
 #define CFGTBL_ChangeReq        0x00000001l
-- 
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