From 0532be078a207d7dd6ad26ebd0834e258acc4ee7 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Mon, 19 Dec 2016 12:08:16 +0100 Subject: [PATCH] drm/atomic: Unconditionally call prepare_fb. Atomic drivers may set properties like rotation on the same fb, which may require a call to prepare_fb even when framebuffer stays identical. Instead of handling all the special cases in the core, let the driver decide when prepare_fb and cleanup_fb are noops. This is a revert of: commit fcc60b413d14dd06ddbd79ec50e83c4fb2a097ba Author: Keith Packard Date: Sat Jun 4 01:16:22 2016 -0700 drm: Don't prepare or cleanup unchanging frame buffers [v3] The original commit mentions that this prevents waiting in i915 on all previous rendering during cursor updates, but there are better ways to fix this. Signed-off-by: Maarten Lankhorst Acked-by: Laurent Pinchart Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/6d82f9b6-9d16-91d1-d176-4a37b09afc44@linux.intel.com --- drivers/gpu/drm/drm_atomic_helper.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index e2e15a9903a9..c2070bb94b7a 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1671,9 +1671,6 @@ int drm_atomic_helper_prepare_planes(struct drm_device *dev, funcs = plane->helper_private; - if (!drm_atomic_helper_framebuffer_changed(dev, state, plane_state->crtc)) - continue; - if (funcs->prepare_fb) { ret = funcs->prepare_fb(plane, plane_state); if (ret) @@ -1690,9 +1687,6 @@ int drm_atomic_helper_prepare_planes(struct drm_device *dev, if (j >= i) continue; - if (!drm_atomic_helper_framebuffer_changed(dev, state, plane_state->crtc)) - continue; - funcs = plane->helper_private; if (funcs->cleanup_fb) @@ -1959,9 +1953,6 @@ void drm_atomic_helper_cleanup_planes(struct drm_device *dev, for_each_plane_in_state(old_state, plane, plane_state, i) { const struct drm_plane_helper_funcs *funcs; - if (!drm_atomic_helper_framebuffer_changed(dev, old_state, plane_state->crtc)) - continue; - funcs = plane->helper_private; if (funcs->cleanup_fb) -- GitLab