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 0be426f..d6d817c 100644
--- a/drivers/dma/ioatdma.c
+++ b/drivers/dma/ioatdma.c
@@ -608,13 +608,11 @@ static void ioat_start_null_desc(struct
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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