diff options
| author | Joy Zou <joy.zou@nxp.com> | 2021-10-26 12:00:25 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-10-28 20:26:24 +0300 |
| commit | e0674853943287669a82d1ffe09a700944615978 (patch) | |
| tree | 030225807cafa7f415ecb6c777678f00962d0218 /drivers/dma/fsl-edma-common.h | |
| parent | a3e340c1574b6679f5b333221284d0959095da52 (diff) | |
| download | linux-e0674853943287669a82d1ffe09a700944615978.tar.xz | |
dmaengine: fsl-edma: support edma memcpy
Add memcpy in edma. The edma has the capability to transfer data by
software trigger so that it could be used for memory copy. Enable
MEMCPY for edma driver and it could be test directly by dmatest.
Signed-off-by: Joy Zou <joy.zou@nxp.com>
Link: https://lore.kernel.org/r/20211026090025.2777292-1-joy.zou@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/fsl-edma-common.h')
| -rw-r--r-- | drivers/dma/fsl-edma-common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/fsl-edma-common.h b/drivers/dma/fsl-edma-common.h index ec1169741de1..004ec4a6bc86 100644 --- a/drivers/dma/fsl-edma-common.h +++ b/drivers/dma/fsl-edma-common.h @@ -121,6 +121,7 @@ struct fsl_edma_chan { struct fsl_edma_desc *edesc; struct dma_slave_config cfg; u32 attr; + bool is_sw; struct dma_pool *tcd_pool; dma_addr_t dma_dev_addr; u32 dma_dev_size; @@ -240,6 +241,9 @@ struct dma_async_tx_descriptor *fsl_edma_prep_slave_sg( struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, enum dma_transfer_direction direction, unsigned long flags, void *context); +struct dma_async_tx_descriptor *fsl_edma_prep_memcpy( + struct dma_chan *chan, dma_addr_t dma_dst, dma_addr_t dma_src, + size_t len, unsigned long flags); void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan); void fsl_edma_issue_pending(struct dma_chan *chan); int fsl_edma_alloc_chan_resources(struct dma_chan *chan); |