Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70774b47392171faae0e98f795aa1507f9246af1
Commit:     70774b47392171faae0e98f795aa1507f9246af1
Parent:     e38288117c50fe22ed1693c2d8397245bb7e1a53
Author:     Chris Leech <[EMAIL PROTECTED]>
AuthorDate: Thu Mar 8 09:57:35 2007 -0800
Committer:  Dan Williams <[EMAIL PROTECTED]>
CommitDate: Wed Jul 11 15:39:04 2007 -0700

    ioatdma: Remove the use of writeq from the ioatdma driver
    There's only one now anyway, and it's not in a performance path,
    so make it behave the same on 32-bit and 64-bit CPUs.
    
    Signed-off-by: Chris Leech <[EMAIL PROTECTED]>
---
 drivers/dma/ioatdma.c |   10 ++++------
 1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c
index 2757070..b3fca12 100644
--- a/drivers/dma/ioatdma.c
+++ b/drivers/dma/ioatdma.c
@@ -608,13 +608,11 @@ static void ioat_start_null_desc(struct ioat_dma_chan 
*ioat_chan)
        list_add_tail(&desc->node, &ioat_chan->used_desc);
        spin_unlock_bh(&ioat_chan->desc_lock);
 
-#if (BITS_PER_LONG == 64)
-       writeq(desc->phys, ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET);
-#else
-       writel((u32) desc->phys,
+       writel(((u64) desc->phys) & 0x00000000FFFFFFFF,
               ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_LOW);
-       writel(0, ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_HIGH);
-#endif
+       writel(((u64) desc->phys) >> 32,
+              ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_HIGH);
+
        writeb(IOAT_CHANCMD_START, ioat_chan->reg_base + IOAT_CHANCMD_OFFSET);
 }
 
-
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