pci: Unregister BARs before device exit

[qemu.git] / dma.h

diff --git a/dma.h b/dma.h
index 16af50f1f7fc77dec862d30879d79f7e403a055d..8c1ec8f0d205750b928911e885a72ce17f522600 100644 (file)
--- a/dma.h
+++ b/dma.h
@@ -11,23 +11,56 @@
 #define DMA_H
 
 #include <stdio.h>
-#include "cpu.h"
+#include "hw/hw.h"
+#include "block.h"
 
-typedef struct {
-    target_phys_addr_t base;
-    target_phys_addr_t len;
-} ScatterGatherEntry;
+typedef struct ScatterGatherEntry ScatterGatherEntry;
 
-typedef struct {
+typedef enum {
+    DMA_DIRECTION_TO_DEVICE = 0,
+    DMA_DIRECTION_FROM_DEVICE = 1,
+} DMADirection;
+
+struct QEMUSGList {
     ScatterGatherEntry *sg;
     int nsg;
     int nalloc;
-    target_phys_addr_t size;
-} QEMUSGList;
+    size_t size;
+};
+
+#if defined(TARGET_PHYS_ADDR_BITS)
+typedef target_phys_addr_t dma_addr_t;
+
+#define DMA_ADDR_FMT TARGET_FMT_plx
+
+struct ScatterGatherEntry {
+    dma_addr_t base;
+    dma_addr_t len;
+};
 
 void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint);
-void qemu_sglist_add(QEMUSGList *qsg, target_phys_addr_t base,
-                     target_phys_addr_t len);
+void qemu_sglist_add(QEMUSGList *qsg, dma_addr_t base, dma_addr_t len);
 void qemu_sglist_destroy(QEMUSGList *qsg);
+#endif
+
+typedef BlockDriverAIOCB *DMAIOFunc(BlockDriverState *bs, int64_t sector_num,
+                                 QEMUIOVector *iov, int nb_sectors,
+                                 BlockDriverCompletionFunc *cb, void *opaque);
+
+BlockDriverAIOCB *dma_bdrv_io(BlockDriverState *bs,
+                              QEMUSGList *sg, uint64_t sector_num,
+                              DMAIOFunc *io_func, BlockDriverCompletionFunc *cb,
+                              void *opaque, DMADirection dir);
+BlockDriverAIOCB *dma_bdrv_read(BlockDriverState *bs,
+                                QEMUSGList *sg, uint64_t sector,
+                                BlockDriverCompletionFunc *cb, void *opaque);
+BlockDriverAIOCB *dma_bdrv_write(BlockDriverState *bs,
+                                 QEMUSGList *sg, uint64_t sector,
+                                 BlockDriverCompletionFunc *cb, void *opaque);
+uint64_t dma_buf_read(uint8_t *ptr, int32_t len, QEMUSGList *sg);
+uint64_t dma_buf_write(uint8_t *ptr, int32_t len, QEMUSGList *sg);
+
+void dma_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
+                    QEMUSGList *sg, enum BlockAcctType type);
 
 #endif