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| author | Dan Williams <dan.j.williams@intel.com> | 2008-02-02 19:49:59 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2008-02-06 10:12:18 -0700 |
| commit | 47437b2c9a64315efeb3d84e97ffefd6c3c67ef1 (patch) | |
| tree | e0dec7b29bebb0a2113f143576d940c571869aa0 /include/linux/async_tx.h | |
| parent | d4c56f97ff21df405d0cebe11f49e3c3c79662b5 (diff) | |
| download | lwn-47437b2c9a64315efeb3d84e97ffefd6c3c67ef1.tar.gz lwn-47437b2c9a64315efeb3d84e97ffefd6c3c67ef1.zip | |
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/linux/async_tx.h')
| -rw-r--r-- | include/linux/async_tx.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h index 3d59d371dd32..eb640f0acfac 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; } |