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authorDan Williams <dan.j.williams@intel.com>2008-02-02 19:30:14 -0700
committerDan Williams <dan.j.williams@intel.com>2008-02-06 10:12:17 -0700
commitd909b347591a23c5a2c324fbccd4c9c966f31c67 (patch)
tree1092bfdc2722eed041a29752a62836366855c30a /crypto
parente73ef9acfd30f36bf7c60237ecffe7bbca8068d6 (diff)
downloadlinux-linaro-d909b347591a23c5a2c324fbccd4c9c966f31c67.tar.gz
async_tx: kill ASYNC_TX_ASSUME_COHERENT
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>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/async_tx/async_memcpy.c15
-rw-r--r--crypto/async_tx/async_memset.c8
-rw-r--r--crypto/async_tx/async_xor.c22
3 files changed, 14 insertions, 31 deletions
diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index 047e533fcc5..e8c8956ef1d 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -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);
diff --git a/crypto/async_tx/async_memset.c b/crypto/async_tx/async_memset.c
index 66ef6351202..76097280395 100644
--- a/crypto/async_tx/async_memset.c
+++ b/crypto/async_tx/async_memset.c
@@ -35,7 +35,7 @@
* @val: fill value
* @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: memset 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
@@ -55,13 +55,11 @@ async_memset(struct page *dest, int val, unsigned int offset,
if (tx) { /* run the memset asynchronously */
dma_addr_t dma_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;
- dma_addr = dma_map_page(device->dev, dest, offset, len, dir);
+ dma_addr = dma_map_page(device->dev, dest, offset, len,
+ DMA_FROM_DEVICE);
tx->tx_set_dest(dma_addr, tx, 0);
async_tx_submit(chan, tx, flags, depend_tx, cb_fn, cb_param);
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 716885a87f0..cb41e6bbbc4 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -42,23 +42,17 @@ do_async_xor(struct dma_async_tx_descriptor *tx, struct dma_device *device,
dma_async_tx_callback cb_fn, void *cb_param)
{
dma_addr_t dma_addr;
- enum dma_data_direction dir;
int i;
pr_debug("%s: len: %zu\n", __FUNCTION__, len);
- dir = (flags & ASYNC_TX_ASSUME_COHERENT) ?
- DMA_NONE : DMA_FROM_DEVICE;
-
- dma_addr = dma_map_page(device->dev, dest, offset, len, dir);
+ dma_addr = dma_map_page(device->dev, dest, offset, len,
+ DMA_FROM_DEVICE);
tx->tx_set_dest(dma_addr, tx, 0);
- dir = (flags & ASYNC_TX_ASSUME_COHERENT) ?
- DMA_NONE : DMA_TO_DEVICE;
-
for (i = 0; i < src_cnt; i++) {
dma_addr = dma_map_page(device->dev, src_list[i],
- offset, len, dir);
+ offset, len, DMA_TO_DEVICE);
tx->tx_set_src(dma_addr, tx, i);
}
@@ -106,7 +100,7 @@ do_sync_xor(struct page *dest, struct page **src_list, unsigned int offset,
* @src_cnt: number of source pages
* @len: length in bytes
* @flags: ASYNC_TX_XOR_ZERO_DST, ASYNC_TX_XOR_DROP_DEST,
- * ASYNC_TX_ASSUME_COHERENT, ASYNC_TX_ACK, ASYNC_TX_DEP_ACK
+ * ASYNC_TX_ACK, ASYNC_TX_DEP_ACK
* @depend_tx: xor depends on the result of this transaction.
* @cb_fn: function to call when the xor completes
* @cb_param: parameter to pass to the callback routine
@@ -246,7 +240,7 @@ static int page_is_zero(struct page *p, unsigned int offset, size_t len)
* @src_cnt: number of source pages
* @len: length in bytes
* @result: 0 if sum == 0 else non-zero
- * @flags: ASYNC_TX_ASSUME_COHERENT, ASYNC_TX_ACK, ASYNC_TX_DEP_ACK
+ * @flags: ASYNC_TX_ACK, ASYNC_TX_DEP_ACK
* @depend_tx: xor depends on the result of this transaction.
* @cb_fn: function to call when the xor completes
* @cb_param: parameter to pass to the callback routine
@@ -270,16 +264,12 @@ async_xor_zero_sum(struct page *dest, struct page **src_list,
if (tx) {
dma_addr_t dma_addr;
- enum dma_data_direction dir;
pr_debug("%s: (async) len: %zu\n", __FUNCTION__, len);
- dir = (flags & ASYNC_TX_ASSUME_COHERENT) ?
- DMA_NONE : DMA_TO_DEVICE;
-
for (i = 0; i < src_cnt; i++) {
dma_addr = dma_map_page(device->dev, src_list[i],
- offset, len, dir);
+ offset, len, DMA_TO_DEVICE);
tx->tx_set_src(dma_addr, tx, i);
}