dma.h

   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
  16 typedef struct {
  17     target_phys_addr_t base;
  18     target_phys_addr_t len;
  19 } ScatterGatherEntry;
  20
  21 typedef struct {
  22     ScatterGatherEntry *sg;
  23     int nsg;
  24     int nalloc;
  25     target_phys_addr_t size;
  26 } QEMUSGList;
  27
  28 void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint);
  29 void qemu_sglist_add(QEMUSGList *qsg, target_phys_addr_t base,
  30                      target_phys_addr_t len);
  31 void qemu_sglist_destroy(QEMUSGList *qsg);
  32
  33 #endif