drm/mgag200: Add FB_DAMAGE_CLIPS support

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The driver does support damage clips, but doesn't advertise it.
So when running gnome/wayland on Matrox hardware, the full frame is
copied to the slow Matrox memory, which leads to very poor performances.

Add drm_plane_enable_fb_damage_clips() to advertise this capability to
userspace.

With this patch, gnome/wayland becomes usable on Matrox GPU.

Suggested-by: Jonas Ådahl <jadahl@gmail.com>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504134026.283417-2-jfalempe@redhat.com

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Jocelyn Falempe 2022-05-04 15:40:24 +02:00

parent 0f6e2fff57

commit 3064debaf5

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/mgag200/mgag200_mode.c

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