diff options
| author |   Dave Jiang <dave.jiang@intel.com> | 2020-01-21 16:43:53 -0700 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2020-01-24 11:18:45 +0530 |
| commit | e81274cd6b5264809384066e09a5253708822522 (patch) | |
| tree | cb5bf34db91411a0b06367a784484f93bf2e1ead /include/linux/dmaengine.h | |
| parent | dmaengine: break out channel registration (diff) | |
| download | wireguard-linux-e81274cd6b5264809384066e09a5253708822522.tar.xz wireguard-linux-e81274cd6b5264809384066e09a5253708822522.zip | |
dmaengine: add support to dynamic register/unregister of channels
With the channel registration routines broken out, now add support code to
allow independent registering and unregistering of channels in a hotplug fashion.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/157965023364.73301.7821862091077299040.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 9cc0e70e7c35..f52f274773ed 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -1521,6 +1521,10 @@ static inline int dmaengine_desc_free(struct dma_async_tx_descriptor *desc) int dma_async_device_register(struct dma_device *device); int dmaenginem_async_device_register(struct dma_device *device); void dma_async_device_unregister(struct dma_device *device); +int dma_async_device_channel_register(struct dma_device *device, + struct dma_chan *chan); +void dma_async_device_channel_unregister(struct dma_device *device, + struct dma_chan *chan); void dma_run_dependencies(struct dma_async_tx_descriptor *tx); #define dma_request_channel(mask, x, y) \ __dma_request_channel(&(mask), x, y, NULL) |