diff options
Diffstat (limited to 'crypto/async_tx/async_memcpy.c')
| -rw-r--r-- | crypto/async_tx/async_memcpy.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index e8c8956ef1dd..faca0bc52068 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c @@ -48,26 +48,25 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, { struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMCPY); struct dma_device *device = chan ? chan->device : NULL; - int int_en = cb_fn ? 1 : 0; - struct dma_async_tx_descriptor *tx = device ? - device->device_prep_dma_memcpy(chan, len, - int_en) : NULL; + struct dma_async_tx_descriptor *tx = NULL; - if (tx) { /* run the memcpy asynchronously */ - dma_addr_t addr; + if (device) { + dma_addr_t dma_dest, dma_src; - pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); + dma_dest = dma_map_page(device->dev, dest, dest_offset, len, + DMA_FROM_DEVICE); - addr = dma_map_page(device->dev, dest, dest_offset, len, - DMA_FROM_DEVICE); - tx->tx_set_dest(addr, tx, 0); + dma_src = dma_map_page(device->dev, src, src_offset, len, + DMA_TO_DEVICE); - addr = dma_map_page(device->dev, src, src_offset, len, - DMA_TO_DEVICE); - tx->tx_set_src(addr, tx, 0); + tx = device->device_prep_dma_memcpy(chan, dma_dest, dma_src, + len, cb_fn != NULL); + } + if (tx) { + pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); - } else { /* run the memcpy synchronously */ + } else { void *dest_buf, *src_buf; pr_debug("%s: (sync) len: %zu\n", __FUNCTION__, len); |