diff options
Diffstat (limited to 'crypto/async_tx/async_memcpy.c')
-rw-r--r-- | crypto/async_tx/async_memcpy.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c index 7117ec6f1b74..89e05556f3df 100644 --- a/crypto/async_tx/async_memcpy.c +++ b/crypto/async_tx/async_memcpy.c | |||
@@ -33,28 +33,28 @@ | |||
33 | * async_memcpy - attempt to copy memory with a dma engine. | 33 | * async_memcpy - attempt to copy memory with a dma engine. |
34 | * @dest: destination page | 34 | * @dest: destination page |
35 | * @src: src page | 35 | * @src: src page |
36 | * @offset: offset in pages to start transaction | 36 | * @dest_offset: offset into 'dest' to start transaction |
37 | * @src_offset: offset into 'src' to start transaction | ||
37 | * @len: length in bytes | 38 | * @len: length in bytes |
38 | * @flags: ASYNC_TX_ACK | 39 | * @submit: submission / completion modifiers |
39 | * @depend_tx: memcpy depends on the result of this transaction | 40 | * |
40 | * @cb_fn: function to call when the memcpy completes | 41 | * honored flags: ASYNC_TX_ACK |
41 | * @cb_param: parameter to pass to the callback routine | ||
42 | */ | 42 | */ |
43 | struct dma_async_tx_descriptor * | 43 | struct dma_async_tx_descriptor * |
44 | async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, | 44 | async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, |
45 | unsigned int src_offset, size_t len, enum async_tx_flags flags, | 45 | unsigned int src_offset, size_t len, |
46 | struct dma_async_tx_descriptor *depend_tx, | 46 | struct async_submit_ctl *submit) |
47 | dma_async_tx_callback cb_fn, void *cb_param) | ||
48 | { | 47 | { |
49 | struct dma_chan *chan = async_tx_find_channel(depend_tx, DMA_MEMCPY, | 48 | struct dma_chan *chan = async_tx_find_channel(submit, DMA_MEMCPY, |
50 | &dest, 1, &src, 1, len); | 49 | &dest, 1, &src, 1, len); |
51 | struct dma_device *device = chan ? chan->device : NULL; | 50 | struct dma_device *device = chan ? chan->device : NULL; |
52 | struct dma_async_tx_descriptor *tx = NULL; | 51 | struct dma_async_tx_descriptor *tx = NULL; |
53 | 52 | ||
54 | if (device) { | 53 | if (device) { |
55 | dma_addr_t dma_dest, dma_src; | 54 | dma_addr_t dma_dest, dma_src; |
56 | unsigned long dma_prep_flags = cb_fn ? DMA_PREP_INTERRUPT : 0; | 55 | unsigned long dma_prep_flags; |
57 | 56 | ||
57 | dma_prep_flags = submit->cb_fn ? DMA_PREP_INTERRUPT : 0; | ||
58 | dma_dest = dma_map_page(device->dev, dest, dest_offset, len, | 58 | dma_dest = dma_map_page(device->dev, dest, dest_offset, len, |
59 | DMA_FROM_DEVICE); | 59 | DMA_FROM_DEVICE); |
60 | 60 | ||
@@ -67,13 +67,13 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, | |||
67 | 67 | ||
68 | if (tx) { | 68 | if (tx) { |
69 | pr_debug("%s: (async) len: %zu\n", __func__, len); | 69 | pr_debug("%s: (async) len: %zu\n", __func__, len); |
70 | async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param); | 70 | async_tx_submit(chan, tx, submit); |
71 | } else { | 71 | } else { |
72 | void *dest_buf, *src_buf; | 72 | void *dest_buf, *src_buf; |
73 | pr_debug("%s: (sync) len: %zu\n", __func__, len); | 73 | pr_debug("%s: (sync) len: %zu\n", __func__, len); |
74 | 74 | ||
75 | /* wait for any prerequisite operations */ | 75 | /* wait for any prerequisite operations */ |
76 | async_tx_quiesce(&depend_tx); | 76 | async_tx_quiesce(&submit->depend_tx); |
77 | 77 | ||
78 | dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset; | 78 | dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset; |
79 | src_buf = kmap_atomic(src, KM_USER1) + src_offset; | 79 | src_buf = kmap_atomic(src, KM_USER1) + src_offset; |
@@ -83,7 +83,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset, | |||
83 | kunmap_atomic(dest_buf, KM_USER0); | 83 | kunmap_atomic(dest_buf, KM_USER0); |
84 | kunmap_atomic(src_buf, KM_USER1); | 84 | kunmap_atomic(src_buf, KM_USER1); |
85 | 85 | ||
86 | async_tx_sync_epilog(cb_fn, cb_param); | 86 | async_tx_sync_epilog(submit); |
87 | } | 87 | } |
88 | 88 | ||
89 | return tx; | 89 | return tx; |