| 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 |