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authorDan Williams <dan.j.williams@intel.com>2008-02-02 19:49:59 -0700
committerDan Williams <dan.j.williams@intel.com>2008-02-06 10:12:18 -0700
commit47437b2c9a64315efeb3d84e97ffefd6c3c67ef1 (patch)
treee0dec7b29bebb0a2113f143576d940c571869aa0 /include
parentd4c56f97ff21df405d0cebe11f49e3c3c79662b5 (diff)
downloadop-kernel-dev-47437b2c9a64315efeb3d84e97ffefd6c3c67ef1.zip
op-kernel-dev-47437b2c9a64315efeb3d84e97ffefd6c3c67ef1.tar.gz
async_tx: allow architecture specific async_tx_find_channel implementations
The source and destination addresses are included to allow channel selection based on address alignment. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/async_tx.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index 3d59d37..eb640f0 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -62,9 +62,15 @@ enum async_tx_flags {
void async_tx_issue_pending_all(void);
enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx);
+#ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL
+#include <asm/async_tx.h>
+#else
+#define async_tx_find_channel(dep, type, dst, dst_count, src, src_count, len) \
+ __async_tx_find_channel(dep, type)
struct dma_chan *
-async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
+__async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
enum dma_transaction_type tx_type);
+#endif /* CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL */
#else
static inline void async_tx_issue_pending_all(void)
{
@@ -86,7 +92,8 @@ async_tx_run_dependencies(struct dma_async_tx_descriptor *tx,
static inline struct dma_chan *
async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
- enum dma_transaction_type tx_type)
+ enum dma_transaction_type tx_type, struct page **dst, int dst_count,
+ struct page **src, int src_count, size_t len)
{
return NULL;
}
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