#define DMA_FIFO_GUARD 3 /* # of cache lines to reserve for the guard area */
struct dma_fifo {
- unsigned in;
- unsigned out; /* updated when dma is pended */
- unsigned done; /* updated upon dma completion */
+ unsigned int in;
+ unsigned int out; /* updated when dma is pended */
+ unsigned int done; /* updated upon dma completion */
struct {
unsigned corrupt:1;
};
int guard; /* ofs of guard area */
int capacity; /* size + reserved */
int avail; /* # of unused bytes in fifo */
- unsigned align; /* must be power of 2 */
+ unsigned int align; /* must be power of 2 */
int tx_limit; /* max # of bytes per dma transaction */
int open_limit; /* max # of outstanding allowed */
int open; /* # of outstanding dma transactions */
struct dma_pending {
struct list_head link;
void *data;
- unsigned len;
- unsigned next;
- unsigned out;
+ unsigned int len;
+ unsigned int next;
+ unsigned int out;
};
static inline void dp_mark_completed(struct dma_pending *dp)
}
void dma_fifo_init(struct dma_fifo *fifo);
-int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align,
+int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned int align,
int tx_limit, int open_limit, gfp_t gfp_mask);
void dma_fifo_free(struct dma_fifo *fifo);
void dma_fifo_reset(struct dma_fifo *fifo);