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drm/mgag200: Don't unpin the current cursor image's buffer. 

Currently the displayed cursor buffer might be evicted from video memory.
Not unpinning the BO fixes this problem. At this point, pixels_current
also references the BO and it will be unpinned during the next cursor
update.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Fixes: 94dc57b103 ("drm/mgag200: Rewrite cursor handling")
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723075425.24028-4-tzimmermann@suse.de
alistair/sunxi64-5.4-dsi
Thomas Zimmermann 2019-07-23 09:54:25 +02:00
parent cf578c8c8e
commit a9c342ab77
1 changed files with 0 additions and 1 deletions
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drivers/gpu/drm/mgag200/mgag200_cursor.c
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@ -213,7 +213,6 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
mdev->cursor.pixels_current = pixels_next;
drm_gem_vram_kunmap(pixels_next);
drm_gem_vram_unpin(pixels_next);
drm_gem_vram_kunmap(gbo);
drm_gem_vram_unpin(gbo);
drm_gem_object_put_unlocked(obj);