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async_tx: kill ASYNC_TX_ASSUME_COHERENT

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Remove the unused ASYNC_TX_ASSUME_COHERENT flag.  Async_tx is
meant to hide the difference between asynchronous hardware and synchronous
software operations, this flag requires clients to understand cache
coherency consequences of the async path.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This commit is contained in:
Dan Williams
2008-02-02 19:30:14 -07:00
parent e73ef9acfd
commit d909b34759
4 changed files with 14 additions and 33 deletions
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15
crypto/async_tx/async_memcpy.c
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@ -35,7 +35,7 @@
* @src: src page
* @offset: offset in pages to start transaction
* @len: length in bytes
* @flags: ASYNC_TX_ASSUME_COHERENT, ASYNC_TX_ACK, ASYNC_TX_DEP_ACK,
* @flags: ASYNC_TX_ACK, ASYNC_TX_DEP_ACK,
* @depend_tx: memcpy depends on the result of this transaction
* @cb_fn: function to call when the memcpy completes
* @cb_param: parameter to pass to the callback routine
@ -55,20 +55,15 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
if (tx) { /* run the memcpy asynchronously */
dma_addr_t addr;
enum dma_data_direction dir;
pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len);
dir = (flags & ASYNC_TX_ASSUME_COHERENT) ?
DMA_NONE : DMA_FROM_DEVICE;
addr = dma_map_page(device->dev, dest, dest_offset, len, dir);
addr = dma_map_page(device->dev, dest, dest_offset, len,
DMA_FROM_DEVICE);
tx->tx_set_dest(addr, tx, 0);
dir = (flags & ASYNC_TX_ASSUME_COHERENT) ?
DMA_NONE : DMA_TO_DEVICE;
addr = dma_map_page(device->dev, src, src_offset, len, dir);
addr = dma_map_page(device->dev, src, src_offset, len,
DMA_TO_DEVICE);
tx->tx_set_src(addr, tx, 0);
async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param);