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| author | Javier Martinez Canillas <javierm@redhat.com> | 2023-11-23 23:13:00 +0100 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2023-11-24 15:15:25 +0100 |
| commit | 35ed38d58257336c1df26b14fd5110b026e2adde (patch) | |
| tree | 47dc395fb37b7fd5ab414dff74f7b34a60e974e2 /Documentation/gpu | |
| parent | 4653f9d014117f78813cae7b022c15b899c77d7b (diff) | |
| download | linux-35ed38d58257336c1df26b14fd5110b026e2adde.tar.gz | |
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.rst | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst index 4a112b8cc7fbe5..13d3627d8bc083 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 -------------------------- |