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, | |||
48 | { | 48 | { |
49 | struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMCPY); | 49 | struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMCPY); |
50 | struct dma_device *device = chan ? chan->device : NULL; | 50 | struct dma_device *device = chan ? chan->device : NULL; |
51 | int int_en = cb_fn ? 1 : 0; | 51 | struct dma_async_tx_descriptor *tx = NULL; |
52 | struct dma_async_tx_descriptor *tx = device ? | ||
53 | device->device_prep_dma_memcpy(chan, len, | ||
54 | int_en) : NULL; | ||
55 | 52 | ||
56 | if (tx) { /* run the memcpy asynchronously */ | 53 | if (device) { |
57 | dma_addr_t addr; | 54 | dma_addr_t dma_dest, dma_src; |
58 | 55 | ||
59 | pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); | 56 | dma_dest = dma_map_page(device->dev, dest, dest_offset, len, |
57 | DMA_FROM_DEVICE); | ||
60 | 58 | ||
61 | addr = dma_map_page(device->dev, dest, dest_offset, len, | 59 | dma_src = dma_map_page(device->dev, src, src_offset, len, |
62 | DMA_FROM_DEVICE); | 60 | DMA_TO_DEVICE); |
63 | tx->tx_set_dest(addr, tx, 0); | ||
64 | 61 | ||
65 | addr = dma_map_page(device->dev, src, src_offset, len, | 62 | tx = device->device_prep_dma_memcpy(chan, dma_dest, dma_src, |
66 | DMA_TO_DEVICE); | 63 | len, cb_fn != NULL); |
67 | tx->tx_set_src(addr, tx, 0); | 64 | } |
68 | 65 | ||
66 | if (tx) { | ||
67 | pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len); | ||
69 | async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); | 68 | async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); |
70 | } else { /* run the memcpy synchronously */ | 69 | } else { |
71 | void *dest_buf, *src_buf; | 70 | void *dest_buf, *src_buf; |
72 | pr_debug("%s: (sync) len: %zu\n", __FUNCTION__, len); | 71 | pr_debug("%s: (sync) len: %zu\n", __FUNCTION__, len); |
73 | 72 | ||