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[5/6,SRU,OEM-5.17] drm/mgag200: Add FB_DAMAGE_CLIPS support

Message ID 20221108042634.24176-6-acelan.kao@canonical.com
State New
Headers show
Series Screen cannot turn on after screen off with Matrox G200eW3 [102b:0536] | expand

Commit Message

AceLan Kao Nov. 8, 2022, 4:26 a.m. UTC 
From: Jocelyn Falempe <jfalempe@redhat.com>

BugLink: https://launchpad.net/bugs/1995573

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
(cherry picked from commit 3064debaf55e1bc8f191871ca5f82697ef4c0951)
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>
---
 drivers/gpu/drm/mgag200/mgag200_mode.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 4c09485d3ef8..825b4f6964e4 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1137,6 +1137,8 @@  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);