Annotation of qemu/dma.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * DMA helper functions
        !             3:  *
        !             4:  * Copyright (c) 2009 Red Hat
        !             5:  *
        !             6:  * This work is licensed under the terms of the GNU General Public License
        !             7:  * (GNU GPL), version 2 or later.
        !             8:  */
        !             9: 
        !            10: #ifndef DMA_H
        !            11: #define DMA_H
        !            12: 
        !            13: #include <stdio.h>
        !            14: #include "cpu.h"
        !            15: #include "block.h"
        !            16: 
        !            17: typedef struct {
        !            18:     target_phys_addr_t base;
        !            19:     target_phys_addr_t len;
        !            20: } ScatterGatherEntry;
        !            21: 
        !            22: typedef struct {
        !            23:     ScatterGatherEntry *sg;
        !            24:     int nsg;
        !            25:     int nalloc;
        !            26:     target_phys_addr_t size;
        !            27: } QEMUSGList;
        !            28: 
        !            29: void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint);
        !            30: void qemu_sglist_add(QEMUSGList *qsg, target_phys_addr_t base,
        !            31:                      target_phys_addr_t len);
        !            32: void qemu_sglist_destroy(QEMUSGList *qsg);
        !            33: 
        !            34: BlockDriverAIOCB *dma_bdrv_read(BlockDriverState *bs,
        !            35:                                 QEMUSGList *sg, uint64_t sector,
        !            36:                                 BlockDriverCompletionFunc *cb, void *opaque);
        !            37: BlockDriverAIOCB *dma_bdrv_write(BlockDriverState *bs,
        !            38:                                  QEMUSGList *sg, uint64_t sector,
        !            39:                                  BlockDriverCompletionFunc *cb, void *opaque);
        !            40: 
        !            41: #endif

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