UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

virtio-gpu: add page flip support 

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2015-09-23 12:19:11 +02:00
parent f3380a3015
commit d24796a4a1
1 changed files with 46 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/gpu/drm/virtio/virtgpu_display.c
View File

@ -125,6 +125,51 @@ static int virtio_gpu_crtc_cursor_move(struct drm_crtc *crtc,
return 0;
}
static int virtio_gpu_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t flags)
{
struct virtio_gpu_device *vgdev = crtc->dev->dev_private;
struct virtio_gpu_output *output =
container_of(crtc, struct virtio_gpu_output, crtc);
struct drm_plane *plane = crtc->primary;
struct virtio_gpu_framebuffer *vgfb;
struct virtio_gpu_object *bo;
unsigned long irqflags;
uint32_t handle;
plane->fb = fb;
vgfb = to_virtio_gpu_framebuffer(plane->fb);
bo = gem_to_virtio_gpu_obj(vgfb->obj);
handle = bo->hw_res_handle;
DRM_DEBUG("handle 0x%x%s, crtc %dx%d\n", handle,
bo->dumb ? ", dumb" : "",
crtc->mode.hdisplay, crtc->mode.vdisplay);
if (bo->dumb) {
virtio_gpu_cmd_transfer_to_host_2d
(vgdev, handle, 0,
cpu_to_le32(crtc->mode.hdisplay),
cpu_to_le32(crtc->mode.vdisplay),
0, 0, NULL);
}
virtio_gpu_cmd_set_scanout(vgdev, output->index, handle,
crtc->mode.hdisplay,
crtc->mode.vdisplay, 0, 0);
virtio_gpu_cmd_resource_flush(vgdev, handle, 0, 0,
crtc->mode.hdisplay,
crtc->mode.vdisplay);
if (event) {
spin_lock_irqsave(&crtc->dev->event_lock, irqflags);
drm_send_vblank_event(crtc->dev, -1, event);
spin_unlock_irqrestore(&crtc->dev->event_lock, irqflags);
}
return 0;
}
static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
.cursor_set2 = virtio_gpu_crtc_cursor_set,
.cursor_move = virtio_gpu_crtc_cursor_move,
@ -132,9 +177,7 @@ static const struct drm_crtc_funcs virtio_gpu_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = drm_crtc_cleanup,
#if 0 /* not (yet) working without vblank support according to docs */
.page_flip = drm_atomic_helper_page_flip,
#endif
.page_flip = virtio_gpu_page_flip,
.reset = drm_atomic_helper_crtc_reset,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,