From ea9c717d0148d4194f9bd04ecfa6b59b20fc0a08 Mon Sep 17 00:00:00 2001 From: Maciej Sosnowski Date: Thu, 26 Feb 2009 11:04:38 +0100 Subject: [PATCH] I/OAT: do not set DCACTRL_CMPL_WRITE_ENABLE for I/OAT ver.3 Flag DCACTRL_CMPL_WRITE_ENABLE is valid only for I/OAT ver.2 so it should not be set for I/OAT ver.3. Signed-off-by: Maciej Sosnowski Signed-off-by: Shannon Nelson Acked-by: Jeff Kirsher Signed-off-by: Dan Williams --- drivers/dma/ioat_dma.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index b3759c4b6536..879f4a06e3ca 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -189,11 +189,13 @@ static int ioat_dma_enumerate_channels(struct ioatdma_device *device) ioat_chan->xfercap = xfercap; ioat_chan->desccount = 0; INIT_DELAYED_WORK(&ioat_chan->work, ioat_dma_chan_reset_part2); - if (ioat_chan->device->version != IOAT_VER_1_2) { - writel(IOAT_DCACTRL_CMPL_WRITE_ENABLE - | IOAT_DMA_DCA_ANY_CPU, - ioat_chan->reg_base + IOAT_DCACTRL_OFFSET); - } + if (ioat_chan->device->version == IOAT_VER_2_0) + writel(IOAT_DCACTRL_CMPL_WRITE_ENABLE | + IOAT_DMA_DCA_ANY_CPU, + ioat_chan->reg_base + IOAT_DCACTRL_OFFSET); + else if (ioat_chan->device->version == IOAT_VER_3_0) + writel(IOAT_DMA_DCA_ANY_CPU, + ioat_chan->reg_base + IOAT_DCACTRL_OFFSET); spin_lock_init(&ioat_chan->cleanup_lock); spin_lock_init(&ioat_chan->desc_lock); INIT_LIST_HEAD(&ioat_chan->free_desc); -- 2.20.1