| /* |
| * DMA helper functions |
| * |
| * Copyright (c) 2009 Red Hat |
| * |
| * This work is licensed under the terms of the GNU General Public License |
| * (GNU GPL), version 2 or later. |
| */ |
| |
| #ifndef DMA_H |
| #define DMA_H |
| |
| #include <stdio.h> |
| //#include "cpu.h" |
| #include "hw/hw.h" |
| #include "block/block.h" |
| |
| typedef struct { |
| hwaddr base; |
| hwaddr len; |
| } ScatterGatherEntry; |
| |
| struct QEMUSGList { |
| ScatterGatherEntry *sg; |
| int nsg; |
| int nalloc; |
| hwaddr size; |
| }; |
| |
| void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint); |
| void qemu_sglist_add(QEMUSGList *qsg, hwaddr base, |
| hwaddr len); |
| void qemu_sglist_destroy(QEMUSGList *qsg); |
| |
| 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); |
| #endif |