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| author | Chris Leech <christopher.leech@intel.com> | 2007-03-08 09:57:35 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2007-07-11 15:39:04 -0700 |
| commit | 70774b47392171faae0e98f795aa1507f9246af1 (patch) | |
| tree | dc6e61846b7f140e2756e77bbf2adff4011c4ed6 /drivers/dma | |
| parent | e38288117c50fe22ed1693c2d8397245bb7e1a53 (diff) | |
| download | kernel-common-70774b47392171faae0e98f795aa1507f9246af1.tar.gz kernel-common-70774b47392171faae0e98f795aa1507f9246af1.tar.bz2 kernel-common-70774b47392171faae0e98f795aa1507f9246af1.zip | |
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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | 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 275707097bf1..b3fca1200a73 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); } |