vugbm.h (1500B)
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 22 struct vugbm_buffer; 23 24 struct 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 39 struct 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 57 void vugbm_device_init(struct vugbm_device *dev, int fd); 58 void vugbm_device_destroy(struct vugbm_device *dev); 59 60 bool vugbm_buffer_create(struct vugbm_buffer *buffer, struct vugbm_device *dev, 61 uint32_t width, uint32_t height); 62 bool vugbm_buffer_can_get_dmabuf_fd(struct vugbm_buffer *buffer); 63 bool vugbm_buffer_get_dmabuf_fd(struct vugbm_buffer *buffer, int *fd); 64 void vugbm_buffer_destroy(struct vugbm_buffer *buffer); 65 66 #endif