drm/gma500: Remove GTT roll support
authorPatrik Jakobsson <patrik.r.jakobsson@gmail.com>
Wed, 28 Oct 2020 14:36:08 +0000 (15:36 +0100)
committerPatrik Jakobsson <patrik.r.jakobsson@gmail.com>
Sun, 15 Nov 2020 19:11:52 +0000 (20:11 +0100)
commitebc7d6470ac4b5f1fb3afa4da11861ff5bd5ea00
tree5045f9f106d221a78c35626bbb96d22e0c63fac5
parent5933baa36e267e480bec59a752579c7581b0b2f5
drm/gma500: Remove GTT roll support

GTT roll support was used to accelerate fb panning on some machines.
Unfortunately this never worked properly with multiple monitors and
caused issues on others where the framebuffer wouldn't fit in stolen
memory. Let's remove it!

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201028143608.1284-1-patrik.r.jakobsson@gmail.com
drivers/gpu/drm/gma500/framebuffer.c
drivers/gpu/drm/gma500/gtt.c
drivers/gpu/drm/gma500/gtt.h