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| author | Javier Martinez Canillas <javierm@redhat.com> | 2023-11-24 01:13:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-01 03:19:08 +0300 |
| commit | 45aafb5075754bbe6458a6b3e8ad02b408c35211 (patch) | |
| tree | 5f5d32c862d59e13a071244d5278093b303b53d4 /mm/debug.c | |
| parent | 1055077473e3448a13cc002fcad2adb08865e084 (diff) | |
| download | linux-45aafb5075754bbe6458a6b3e8ad02b408c35211.tar.xz | |
drm: Allow drivers to indicate the damage helpers to ignore damage clips
commit 35ed38d58257336c1df26b14fd5110b026e2adde upstream.
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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/debug.c')
0 files changed, 0 insertions, 0 deletions