diff options
| author |   Alexandre Bounine <alexandre.bounine@idt.com> | 2014-08-08 14:22:09 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-08 15:57:24 -0700 |
| commit | 4aff1ce7add1c432fe5ea3ae0231155f33e5ef38 (patch) | |
| tree | c2a9300e8ebe844887adaded00ee4b3078e94d4b /include | |
| parent | lib/idr.c: fix out-of-bounds pointer dereference (diff) | |
| download | linux-dev-4aff1ce7add1c432fe5ea3ae0231155f33e5ef38.tar.xz linux-dev-4aff1ce7add1c432fe5ea3ae0231155f33e5ef38.zip | |
rapidio: add new RapidIO DMA interface routines
Add RapidIO DMA interface routines that directly use reference to the mport
device object and/or target device destination ID as parameters.
This allows to perform RapidIO DMA transfer requests by modules that do not
have an access to the RapidIO device list.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Stef van Os <stef.van.os@prodrive-technologies.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/rio_drv.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/rio_drv.h b/include/linux/rio_drv.h index 5059994fe297..9fc2f213e74f 100644 --- a/include/linux/rio_drv.h +++ b/include/linux/rio_drv.h @@ -384,11 +384,16 @@ void rio_dev_put(struct rio_dev *); #ifdef CONFIG_RAPIDIO_DMA_ENGINE extern struct dma_chan *rio_request_dma(struct rio_dev *rdev); +extern struct dma_chan *rio_request_mport_dma(struct rio_mport *mport); extern void rio_release_dma(struct dma_chan *dchan); extern struct dma_async_tx_descriptor *rio_dma_prep_slave_sg( struct rio_dev *rdev, struct dma_chan *dchan, struct rio_dma_data *data, enum dma_transfer_direction direction, unsigned long flags); +extern struct dma_async_tx_descriptor *rio_dma_prep_xfer( + struct dma_chan *dchan, u16 destid, + struct rio_dma_data *data, + enum dma_transfer_direction direction, unsigned long flags); #endif /** |