diff options
Diffstat (limited to 'drivers/gpu/drm/drm_plane_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane_helper.c | 42 |
1 files changed, 33 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index 18a1ac6ac22f..5ba5792bfdba 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -142,6 +142,17 @@ int drm_plane_helper_check_update(struct drm_plane *plane, { int hscale, vscale; + if (!fb) { + *visible = false; + return 0; + } + + /* crtc should only be NULL when disabling (i.e., !fb) */ + if (WARN_ON(!crtc)) { + *visible = false; + return 0; + } + if (!crtc->enabled && !can_update_disabled) { DRM_DEBUG_KMS("Cannot update plane of a disabled CRTC.\n"); return -EINVAL; @@ -155,11 +166,6 @@ int drm_plane_helper_check_update(struct drm_plane *plane, return -ERANGE; } - if (!fb) { - *visible = false; - return 0; - } - *visible = drm_rect_clip_scaled(src, dest, clip, hscale, vscale); if (!*visible) /* @@ -429,7 +435,8 @@ int drm_plane_helper_commit(struct drm_plane *plane, goto out; } - if (plane_funcs->prepare_fb && plane_state->fb) { + if (plane_funcs->prepare_fb && plane_state->fb && + plane_state->fb != old_fb) { ret = plane_funcs->prepare_fb(plane, plane_state->fb); if (ret) goto out; @@ -443,13 +450,28 @@ int drm_plane_helper_commit(struct drm_plane *plane, crtc_funcs[i]->atomic_begin(crtc[i]); } - plane_funcs->atomic_update(plane, plane_state); + /* + * Drivers may optionally implement the ->atomic_disable callback, so + * special-case that here. + */ + if (drm_atomic_plane_disabling(plane, plane_state) && + plane_funcs->atomic_disable) + plane_funcs->atomic_disable(plane, plane_state); + else + plane_funcs->atomic_update(plane, plane_state); for (i = 0; i < 2; i++) { if (crtc_funcs[i] && crtc_funcs[i]->atomic_flush) crtc_funcs[i]->atomic_flush(crtc[i]); } + /* + * If we only moved the plane and didn't change fb's, there's no need to + * wait for vblank. + */ + if (plane->state->fb == old_fb) + goto out; + for (i = 0; i < 2; i++) { if (!crtc[i]) continue; @@ -478,7 +500,7 @@ out: } /** - * drm_plane_helper_update() - Helper for primary plane update + * drm_plane_helper_update() - Transitional helper for plane update * @plane: plane object to update * @crtc: owning CRTC of owning plane * @fb: framebuffer to flip onto plane @@ -517,6 +539,7 @@ int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, plane_state = kzalloc(sizeof(*plane_state), GFP_KERNEL); if (!plane_state) return -ENOMEM; + plane_state->plane = plane; plane_state->crtc = crtc; drm_atomic_set_fb_for_plane(plane_state, fb); @@ -534,7 +557,7 @@ int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc, EXPORT_SYMBOL(drm_plane_helper_update); /** - * drm_plane_helper_disable() - Helper for primary plane disable + * drm_plane_helper_disable() - Transitional helper for plane disable * @plane: plane to disable * * Provides a default plane disable handler using the atomic plane update @@ -563,6 +586,7 @@ int drm_plane_helper_disable(struct drm_plane *plane) plane_state = kzalloc(sizeof(*plane_state), GFP_KERNEL); if (!plane_state) return -ENOMEM; + plane_state->plane = plane; plane_state->crtc = NULL; drm_atomic_set_fb_for_plane(plane_state, NULL); |