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-rw-r--r--include/linux/async_tx.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index bdca3f1b3213..eb640f0acfac 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -47,7 +47,6 @@ struct dma_chan_ref {
47 * address is an implied source, whereas the asynchronous case it must be listed 47 * address is an implied source, whereas the asynchronous case it must be listed
48 * as a source. The destination address must be the first address in the source 48 * as a source. The destination address must be the first address in the source
49 * array. 49 * array.
50 * @ASYNC_TX_ASSUME_COHERENT: skip cache maintenance operations
51 * @ASYNC_TX_ACK: immediately ack the descriptor, precludes setting up a 50 * @ASYNC_TX_ACK: immediately ack the descriptor, precludes setting up a
52 * dependency chain 51 * dependency chain
53 * @ASYNC_TX_DEP_ACK: ack the dependency descriptor. Useful for chaining. 52 * @ASYNC_TX_DEP_ACK: ack the dependency descriptor. Useful for chaining.
@@ -55,7 +54,6 @@ struct dma_chan_ref {
55enum async_tx_flags { 54enum async_tx_flags {
56 ASYNC_TX_XOR_ZERO_DST = (1 << 0), 55 ASYNC_TX_XOR_ZERO_DST = (1 << 0),
57 ASYNC_TX_XOR_DROP_DST = (1 << 1), 56 ASYNC_TX_XOR_DROP_DST = (1 << 1),
58 ASYNC_TX_ASSUME_COHERENT = (1 << 2),
59 ASYNC_TX_ACK = (1 << 3), 57 ASYNC_TX_ACK = (1 << 3),
60 ASYNC_TX_DEP_ACK = (1 << 4), 58 ASYNC_TX_DEP_ACK = (1 << 4),
61}; 59};
@@ -64,9 +62,15 @@ enum async_tx_flags {
64void async_tx_issue_pending_all(void); 62void async_tx_issue_pending_all(void);
65enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx); 63enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx);
66void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx); 64void async_tx_run_dependencies(struct dma_async_tx_descriptor *tx);
65#ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL
66#include <asm/async_tx.h>
67#else
68#define async_tx_find_channel(dep, type, dst, dst_count, src, src_count, len) \
69 __async_tx_find_channel(dep, type)
67struct dma_chan * 70struct dma_chan *
68async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, 71__async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
69 enum dma_transaction_type tx_type); 72 enum dma_transaction_type tx_type);
73#endif /* CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL */
70#else 74#else
71static inline void async_tx_issue_pending_all(void) 75static inline void async_tx_issue_pending_all(void)
72{ 76{
@@ -88,7 +92,8 @@ async_tx_run_dependencies(struct dma_async_tx_descriptor *tx,
88 92
89static inline struct dma_chan * 93static inline struct dma_chan *
90async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx, 94async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
91 enum dma_transaction_type tx_type) 95 enum dma_transaction_type tx_type, struct page **dst, int dst_count,
96 struct page **src, int src_count, size_t len)
92{ 97{
93 return NULL; 98 return NULL;
94} 99}