LXR qemu/contrib/vhost-user-gpu/vugbm.h

   1/*
   2 * Virtio vhost-user GPU Device
   3 *
   4 * GBM helpers
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 */
   9
  10#ifndef VHOST_USER_GPU_VUGBM_H
  11#define VHOST_USER_GPU_VUGBM_H
  12
  13
  14#ifdef CONFIG_MEMFD
  15#include <sys/ioctl.h>
  16#endif
  17
  18#ifdef CONFIG_GBM
  19#include <gbm.h>
  20#endif
  21
  22struct vugbm_buffer;
  23
  24struct vugbm_device {
  25    bool inited;
  26    int fd;
  27#ifdef CONFIG_GBM
  28    struct gbm_device *dev;
  29#endif
  30
  31    bool (*alloc_bo)(struct vugbm_buffer *buf);
  32    void (*free_bo)(struct vugbm_buffer *buf);
  33    bool (*get_fd)(struct vugbm_buffer *buf, int *fd);
  34    bool (*map_bo)(struct vugbm_buffer *buf);
  35    void (*unmap_bo)(struct vugbm_buffer *buf);
  36    void (*device_destroy)(struct vugbm_device *dev);
  37};
  38
  39struct vugbm_buffer {
  40    struct vugbm_device *dev;
  41
  42#ifdef CONFIG_MEMFD
  43    int memfd;
  44#endif
  45#ifdef CONFIG_GBM
  46    struct gbm_bo *bo;
  47    void *mmap_data;
  48#endif
  49
  50    uint8_t *mmap;
  51    uint32_t width;
  52    uint32_t height;
  53    uint32_t stride;
  54    uint32_t format;
  55};
  56
  57void vugbm_device_init(struct vugbm_device *dev, int fd);
  58void vugbm_device_destroy(struct vugbm_device *dev);
  59
  60bool vugbm_buffer_create(struct vugbm_buffer *buffer, struct vugbm_device *dev,
  61                         uint32_t width, uint32_t height);
  62bool vugbm_buffer_can_get_dmabuf_fd(struct vugbm_buffer *buffer);
  63bool vugbm_buffer_get_dmabuf_fd(struct vugbm_buffer *buffer, int *fd);
  64void vugbm_buffer_destroy(struct vugbm_buffer *buffer);
  65
  66#endif
  67