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authorJavier Martinez Canillas <javierm@redhat.com>2023-11-24 01:13:00 +0300
committerJavier Martinez Canillas <javierm@redhat.com>2023-11-24 17:15:25 +0300
commit35ed38d58257336c1df26b14fd5110b026e2adde (patch)
tree47dc395fb37b7fd5ab414dff74f7b34a60e974e2 /Documentation/gpu
parent4653f9d014117f78813cae7b022c15b899c77d7b (diff)
downloadlinux-35ed38d58257336c1df26b14fd5110b026e2adde.tar.xz
drm: Allow drivers to indicate the damage helpers to ignore damage clips
It allows drivers to set a struct drm_plane_state .ignore_damage_clips in their plane's .atomic_check callback, as an indication to damage helpers such as drm_atomic_helper_damage_iter_init() that the damage clips should be ignored. To be used by drivers that do per-buffer (e.g: virtio-gpu) uploads (rather than per-plane uploads), since these type of drivers need to handle buffer damages instead of frame damages. That way, these drivers could force a full plane update if the framebuffer attached to a plane's state has changed since the last update (page-flip). Fixes: 01f05940a9a7 ("drm/virtio: Enable fb damage clips property for the primary plane") Cc: <stable@vger.kernel.org> # v6.4+ Reported-by: nerdopolis <bluescreen_avenger@verizon.net> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218115 Suggested-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Zack Rusin <zackr@vmware.com> Acked-by: Sima Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20231123221315.3579454-2-javierm@redhat.com
Diffstat (limited to 'Documentation/gpu')
-rw-r--r--Documentation/gpu/drm-kms.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index 4a112b8cc7fb..13d3627d8bc0 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -548,6 +548,8 @@ Plane Composition Properties
.. kernel-doc:: drivers/gpu/drm/drm_blend.c
:doc: overview
+.. _damage_tracking_properties:
+
Damage Tracking Properties
--------------------------