From: Jocelyn Falempe Date: Wed, 4 May 2022 13:40:24 +0000 (+0200) Subject: drm/mgag200: Add FB_DAMAGE_CLIPS support X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3064debaf55e1bc8f191871ca5f82697ef4c0951;p=linux.git drm/mgag200: Add FB_DAMAGE_CLIPS support 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 Signed-off-by: Jocelyn Falempe Reviewed-by: Lyude Paul Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20220504134026.283417-2-jfalempe@redhat.com --- diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index abde7655477db..a77da57f1022c 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -1121,6 +1121,8 @@ int mgag200_modeset_init(struct mga_device *mdev) return ret; } + drm_plane_enable_fb_damage_clips(&pipe->plane); + /* FIXME: legacy gamma tables; convert to CRTC state */ drm_mode_crtc_set_gamma_size(&pipe->crtc, MGAG200_LUT_SIZE);