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I/OAT: do not set DCACTRL_CMPL_WRITE_ENABLE for I/OAT ver.3

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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 <maciej.sosnowski@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Maciej Sosnowski 2009-02-26 11:04:38 +01:00 committed by Dan Williams
parent 49bc46360d
commit ea9c717d01
1 changed files with 7 additions and 5 deletions
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12
drivers/dma/ioat_dma.c
View file

@ -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);