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| author | Siva Yerramreddy <yshivakrishna@gmail.com> | 2014-07-11 14:04:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-11 18:31:12 -0700 |
| commit | d4ef098e4cd836b3726781eabe064d7010b6eaa8 (patch) | |
| tree | 6d5eab0949f4cbc3552847a4ce874cb92a117379 /drivers/misc/mic/host/mic_x100.c | |
| parent | b8e439f48a19e5832c08b4656a3a8ebb1f4b05f8 (diff) | |
| download | linux-d4ef098e4cd836b3726781eabe064d7010b6eaa8.tar.bz2 | |
misc: mic: add dma support in host driver
This patch adds a dma device on the mic virtual bus and uses this dmaengine
to transfer data for virtio devices
Reviewed-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Siva Yerramreddy <yshivakrishna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mic/host/mic_x100.c')
| -rw-r--r-- | drivers/misc/mic/host/mic_x100.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c index 5562fdd3ef4e..b7a21e11dcdf 100644 --- a/drivers/misc/mic/host/mic_x100.c +++ b/drivers/misc/mic/host/mic_x100.c @@ -549,6 +549,13 @@ struct mic_smpt_ops mic_x100_smpt_ops = { .set = mic_x100_smpt_set, }; +static bool mic_x100_dma_filter(struct dma_chan *chan, void *param) +{ + if (chan->device->dev->parent == (struct device *)param) + return true; + return false; +} + struct mic_hw_ops mic_x100_ops = { .aper_bar = MIC_X100_APER_BAR, .mmio_bar = MIC_X100_MMIO_BAR, @@ -563,6 +570,7 @@ struct mic_hw_ops mic_x100_ops = { .send_firmware_intr = mic_x100_send_firmware_intr, .load_mic_fw = mic_x100_load_firmware, .get_postcode = mic_x100_get_postcode, + .dma_filter = mic_x100_dma_filter, }; struct mic_hw_intr_ops mic_x100_intr_ops = { |