Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

[sfrench/cifs-2.6.git] / include / linux / dmaengine.h

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 5c84bf8975939d254f62595e9c4cc0795c8d3c96..261e43a4c873042c687138db87e9e1a242e6ffd8 100644 (file)
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -94,6 +94,15 @@ enum dma_transaction_type {
 /* last transaction type for creation of the capabilities mask */
 #define DMA_TX_TYPE_END (DMA_INTERRUPT + 1)
 
+/**
+ * enum dma_prep_flags - DMA flags to augment operation preparation
+ * @DMA_PREP_INTERRUPT - trigger an interrupt (callback) upon completion of
+ *     this transaction
+ */
+enum dma_prep_flags {
+       DMA_PREP_INTERRUPT = (1 << 0),
+};
+
 /**
  * dma_cap_mask_t - capabilities bitmap modeled after cpumask_t.
  * See linux/cpumask.h
@@ -209,8 +218,6 @@ typedef void (*dma_async_tx_callback)(void *dma_async_param);
  *     descriptors
  * @chan: target channel for this operation
  * @tx_submit: set the prepared descriptor(s) to be executed by the engine
- * @tx_set_dest: set a destination address in a hardware descriptor
- * @tx_set_src: set a source address in a hardware descriptor
  * @callback: routine to call after this operation is complete
  * @callback_param: general parameter to pass to the callback routine
  * ---async_tx api specific fields---
@@ -227,10 +234,6 @@ struct dma_async_tx_descriptor {
        struct list_head tx_list;
        struct dma_chan *chan;
        dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
-       void (*tx_set_dest)(dma_addr_t addr,
-               struct dma_async_tx_descriptor *tx, int index);
-       void (*tx_set_src)(dma_addr_t addr,
-               struct dma_async_tx_descriptor *tx, int index);
        dma_async_tx_callback callback;
        void *callback_param;
        struct list_head depend_list;
@@ -279,15 +282,17 @@ struct dma_device {
        void (*device_free_chan_resources)(struct dma_chan *chan);
 
        struct dma_async_tx_descriptor *(*device_prep_dma_memcpy)(
-               struct dma_chan *chan, size_t len, int int_en);
+               struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
+               size_t len, unsigned long flags);
        struct dma_async_tx_descriptor *(*device_prep_dma_xor)(
-               struct dma_chan *chan, unsigned int src_cnt, size_t len,
-               int int_en);
+               struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src,
+               unsigned int src_cnt, size_t len, unsigned long flags);
        struct dma_async_tx_descriptor *(*device_prep_dma_zero_sum)(
-               struct dma_chan *chan, unsigned int src_cnt, size_t len,
-               u32 *result, int int_en);
+               struct dma_chan *chan, dma_addr_t *src, unsigned int src_cnt,
+               size_t len, u32 *result, unsigned long flags);
        struct dma_async_tx_descriptor *(*device_prep_dma_memset)(
-               struct dma_chan *chan, int value, size_t len, int int_en);
+               struct dma_chan *chan, dma_addr_t dest, int value, size_t len,
+               unsigned long flags);
        struct dma_async_tx_descriptor *(*device_prep_dma_interrupt)(
                struct dma_chan *chan);
 
@@ -361,7 +366,7 @@ __dma_has_cap(enum dma_transaction_type tx_type, dma_cap_mask_t *srcp)
  */
 static inline void dma_async_issue_pending(struct dma_chan *chan)
 {
-       return chan->device->device_issue_pending(chan);
+       chan->device->device_issue_pending(chan);
 }
 
 #define dma_async_memcpy_issue_pending(chan) dma_async_issue_pending(chan)