Merge branch 'topic/ioat' into for-linus

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 8b5b23a8ace9..23fb2fa04000 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -688,6 +688,12 @@ static void ioat_restart_channel(struct ioatdma_chan *ioat_chan)
 {
         u64 phys_complete;
 
+        /* set the completion address register again */
+        writel(lower_32_bits(ioat_chan->completion_dma),
+               ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_LOW);
+        writel(upper_32_bits(ioat_chan->completion_dma),
+               ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_HIGH);
+
         ioat_quiesce(ioat_chan, 0);
         if (ioat_cleanup_preamble(ioat_chan, &phys_complete))
                 __cleanup(ioat_chan, phys_complete);