diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 8008a7de2e10..91fda6b8926e 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -645,7 +645,7 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, if (ret) return ret; - connectors_mask += BIT(i); + connectors_mask |= BIT(i); } /* @@ -1184,10 +1184,12 @@ static void drm_atomic_helper_commit_writebacks(struct drm_device *dev, const struct drm_connector_helper_funcs *funcs; funcs = connector->helper_private; + if (!funcs->atomic_commit) + continue; if (new_conn_state->writeback_job && new_conn_state->writeback_job->fb) { WARN_ON(connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK); - funcs->atomic_commit(connector, new_conn_state->writeback_job); + funcs->atomic_commit(connector, new_conn_state); } } } @@ -1448,6 +1450,8 @@ void drm_atomic_helper_commit_tail(struct drm_atomic_state *old_state) drm_atomic_helper_commit_modeset_enables(dev, old_state); + drm_atomic_helper_fake_vblank(old_state); + drm_atomic_helper_commit_hw_done(old_state); drm_atomic_helper_wait_for_vblanks(dev, old_state); @@ -1477,6 +1481,8 @@ void drm_atomic_helper_commit_tail_rpm(struct drm_atomic_state *old_state) drm_atomic_helper_commit_planes(dev, old_state, DRM_PLANE_COMMIT_ACTIVE_ONLY); + drm_atomic_helper_fake_vblank(old_state); + drm_atomic_helper_commit_hw_done(old_state); drm_atomic_helper_wait_for_vblanks(dev, old_state); @@ -2052,6 +2058,45 @@ void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) EXPORT_SYMBOL(drm_atomic_helper_wait_for_dependencies); /** + * drm_atomic_helper_fake_vblank - fake VBLANK events if needed + * @old_state: atomic state object with old state structures + * + * This function walks all CRTCs and fake VBLANK events on those with + * &drm_crtc_state.no_vblank set to true and &drm_crtc_state.event != NULL. + * The primary use of this function is writeback connectors working in oneshot + * mode and faking VBLANK events. In this case they only fake the VBLANK event + * when a job is queued, and any change to the pipeline that does not touch the + * connector is leading to timeouts when calling + * drm_atomic_helper_wait_for_vblanks() or + * drm_atomic_helper_wait_for_flip_done(). + * + * This is part of the atomic helper support for nonblocking commits, see + * drm_atomic_helper_setup_commit() for an overview. + */ +void drm_atomic_helper_fake_vblank(struct drm_atomic_state *old_state) +{ + struct drm_crtc_state *new_crtc_state; + struct drm_crtc *crtc; + int i; + + for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { + unsigned long flags; + + if (!new_crtc_state->no_vblank) + continue; + + spin_lock_irqsave(&old_state->dev->event_lock, flags); + if (new_crtc_state->event) { + drm_crtc_send_vblank_event(crtc, + new_crtc_state->event); + new_crtc_state->event = NULL; + } + spin_unlock_irqrestore(&old_state->dev->event_lock, flags); + } +} +EXPORT_SYMBOL(drm_atomic_helper_fake_vblank); + +/** * drm_atomic_helper_commit_hw_done - setup possible nonblocking commit * @old_state: atomic state object with old state structures * |