container_of(cb, struct vc4_async_flip_state, cb);
struct drm_crtc *crtc = flip_state->crtc;
struct drm_device *dev = crtc->dev;
- struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_plane *plane = crtc->primary;
vc4_plane_async_set_fb(plane, flip_state->fb);
}
kfree(flip_state);
-
- up(&vc4->async_modeset);
}
/* Implements async (non-vblank-synced) page flips.
uint32_t flags)
{
struct drm_device *dev = crtc->dev;
- struct vc4_dev *vc4 = to_vc4_dev(dev);
struct drm_plane *plane = crtc->primary;
int ret = 0;
struct vc4_async_flip_state *flip_state;
flip_state->crtc = crtc;
flip_state->event = event;
- /* Make sure all other async modesetes have landed. */
- ret = down_interruptible(&vc4->async_modeset);
- if (ret) {
- drm_framebuffer_put(fb);
- vc4_bo_dec_usecnt(bo);
- kfree(flip_state);
- return ret;
- }
-
/* Save the current FB before it's replaced by the new one in
* drm_atomic_set_fb_for_plane(). We'll need the old FB in
* vc4_async_page_flip_complete() to decrement the BO usecnt and keep
clk_set_min_rate(hvs->core_clk, 0);
drm_atomic_state_put(state);
-
- up(&vc4->async_modeset);
}
static void commit_work(struct work_struct *work)
struct drm_atomic_state *state,
bool nonblock)
{
- struct vc4_dev *vc4 = to_vc4_dev(dev);
int ret;
if (state->async_update) {
- ret = down_interruptible(&vc4->async_modeset);
- if (ret)
- return ret;
-
ret = drm_atomic_helper_prepare_planes(dev, state);
- if (ret) {
- up(&vc4->async_modeset);
+ if (ret)
return ret;
- }
drm_atomic_helper_async_commit(dev, state);
drm_atomic_helper_cleanup_planes(dev, state);
- up(&vc4->async_modeset);
-
return 0;
}
INIT_WORK(&state->commit_work, commit_work);
- ret = down_interruptible(&vc4->async_modeset);
- if (ret)
- return ret;
-
ret = drm_atomic_helper_prepare_planes(dev, state);
- if (ret) {
- up(&vc4->async_modeset);
+ if (ret)
return ret;
- }
if (!nonblock) {
ret = drm_atomic_helper_wait_for_fences(dev, state, true);
if (ret) {
drm_atomic_helper_cleanup_planes(dev, state);
- up(&vc4->async_modeset);
return ret;
}
}
vc4->load_tracker_enabled = true;
}
- sema_init(&vc4->async_modeset, 1);
-
/* Set support for vblank irq fast disable, before drm_vblank_init() */
dev->vblank_disable_immediate = true;