mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 18:05:37 +00:00
![Marc-André Lureau](/assets/img/avatar_default.png)
vugbm implements GBM device wrapping, udmabuf and memory fallback. However, the fallback/detection logic is flawed, as if "/dev/udmabuf" failed to be opened, it will not initialize vugbm and crash later. Rework the vugbm_device_init() logic to initialize correctly in all cases. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210312100108.2706195-4-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
|
|
* Virtio vhost-user GPU Device
|
|
*
|
|
* GBM helpers
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#ifndef VHOST_USER_GPU_VUGBM_H
|
|
#define VHOST_USER_GPU_VUGBM_H
|
|
|
|
|
|
#ifdef CONFIG_MEMFD
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_GBM
|
|
#include <gbm.h>
|
|
#endif
|
|
|
|
struct vugbm_buffer;
|
|
|
|
struct vugbm_device {
|
|
bool inited;
|
|
int fd;
|
|
#ifdef CONFIG_GBM
|
|
struct gbm_device *dev;
|
|
#endif
|
|
|
|
bool (*alloc_bo)(struct vugbm_buffer *buf);
|
|
void (*free_bo)(struct vugbm_buffer *buf);
|
|
bool (*get_fd)(struct vugbm_buffer *buf, int *fd);
|
|
bool (*map_bo)(struct vugbm_buffer *buf);
|
|
void (*unmap_bo)(struct vugbm_buffer *buf);
|
|
void (*device_destroy)(struct vugbm_device *dev);
|
|
};
|
|
|
|
struct vugbm_buffer {
|
|
struct vugbm_device *dev;
|
|
|
|
#ifdef CONFIG_MEMFD
|
|
int memfd;
|
|
#endif
|
|
#ifdef CONFIG_GBM
|
|
struct gbm_bo *bo;
|
|
void *mmap_data;
|
|
#endif
|
|
|
|
uint8_t *mmap;
|
|
uint32_t width;
|
|
uint32_t height;
|
|
uint32_t stride;
|
|
uint32_t format;
|
|
};
|
|
|
|
void vugbm_device_init(struct vugbm_device *dev, int fd);
|
|
void vugbm_device_destroy(struct vugbm_device *dev);
|
|
|
|
bool vugbm_buffer_create(struct vugbm_buffer *buffer, struct vugbm_device *dev,
|
|
uint32_t width, uint32_t height);
|
|
bool vugbm_buffer_can_get_dmabuf_fd(struct vugbm_buffer *buffer);
|
|
bool vugbm_buffer_get_dmabuf_fd(struct vugbm_buffer *buffer, int *fd);
|
|
void vugbm_buffer_destroy(struct vugbm_buffer *buffer);
|
|
|
|
#endif
|