diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 53 |
1 files changed, 15 insertions, 38 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 820adcda45b8..b97c054f9786 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1388,35 +1388,31 @@ int drm_atomic_helper_async_check(struct drm_device *dev, { struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; - struct drm_crtc_commit *commit; - struct drm_plane *__plane, *plane = NULL; - struct drm_plane_state *__plane_state, *plane_state = NULL; + struct drm_plane *plane; + struct drm_plane_state *old_plane_state, *new_plane_state; const struct drm_plane_helper_funcs *funcs; - int i, j, n_planes = 0; + int i, n_planes = 0; for_each_new_crtc_in_state(state, crtc, crtc_state, i) { if (drm_atomic_crtc_needs_modeset(crtc_state)) return -EINVAL; } - for_each_new_plane_in_state(state, __plane, __plane_state, i) { + for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) n_planes++; - plane = __plane; - plane_state = __plane_state; - } /* FIXME: we support only single plane updates for now */ - if (!plane || n_planes != 1) + if (n_planes != 1) return -EINVAL; - if (!plane_state->crtc) + if (!new_plane_state->crtc) return -EINVAL; funcs = plane->helper_private; if (!funcs->atomic_async_update) return -EINVAL; - if (plane_state->fence) + if (new_plane_state->fence) return -EINVAL; /* @@ -1424,31 +1420,11 @@ int drm_atomic_helper_async_check(struct drm_device *dev, * the plane. This prevents our async update's changes from getting * overridden by a previous synchronous update's state. */ - for_each_new_crtc_in_state(state, crtc, crtc_state, i) { - if (plane->crtc != crtc) - continue; - - spin_lock(&crtc->commit_lock); - commit = list_first_entry_or_null(&crtc->commit_list, - struct drm_crtc_commit, - commit_entry); - if (!commit) { - spin_unlock(&crtc->commit_lock); - continue; - } - spin_unlock(&crtc->commit_lock); - - if (!crtc->state->state) - continue; + if (old_plane_state->commit && + !try_wait_for_completion(&old_plane_state->commit->hw_done)) + return -EBUSY; - for_each_plane_in_state(crtc->state->state, __plane, - __plane_state, j) { - if (__plane == plane) - return -EINVAL; - } - } - - return funcs->atomic_async_check(plane, plane_state); + return funcs->atomic_async_check(plane, new_plane_state); } EXPORT_SYMBOL(drm_atomic_helper_async_check); @@ -1814,9 +1790,10 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state, } for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { - /* commit tracked through new_crtc_state->commit, no need to do it explicitly */ - if (new_plane_state->crtc) - continue; + /* + * Unlike connectors, always track planes explicitly for + * async pageflip support. + */ /* Userspace is not allowed to get ahead of the previous * commit with nonblocking ones. */ |