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| author | Maciej Sosnowski <maciej.sosnowski@intel.com> | 2009-02-26 11:04:38 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-03-04 16:04:39 -0700 |
| commit | ea9c717d0148d4194f9bd04ecfa6b59b20fc0a08 (patch) | |
| tree | 9a7a614443b99c697ec1ad99547167fb79736faa /drivers/dma | |
| parent | 49bc46360d68156ce82b2b1a12badb80078453a0 (diff) | |
| download | linux-stable-ea9c717d0148d4194f9bd04ecfa6b59b20fc0a08.tar.gz linux-stable-ea9c717d0148d4194f9bd04ecfa6b59b20fc0a08.tar.bz2 linux-stable-ea9c717d0148d4194f9bd04ecfa6b59b20fc0a08.zip | |
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 <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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ioat_dma.c | 12 |
1 files 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); |