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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 <christopher.leech@intel.com>
This commit is contained in:
Chris Leech 2007-03-08 09:57:35 -08:00 committed by Dan Williams
parent e38288117c
commit 70774b4739
1 changed files with 4 additions and 6 deletions
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10
drivers/dma/ioatdma.c
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@ -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);
}