Comme=
nt # 65
on bug 10617=
5
from bmilreu@gmail.co=
m
(In reply to Nicholas Kazlauskas from comment #64)
> Created attachment 142574 [details] [review=
] [review]
> 0001-drm-amd-display-Add-fast-path-for-legacy-cursor-plan.patch
>=20
> This patch is similar to the async_update one but it takes care to loc=
k if
> anything is modifying the plane. It's very close to what i915 does wit=
h a
> few minor differences with framebuffer handling.
>=20
> I've tested it for compton with Gallium HUD up and I no longer see the=
issue
> on mouse movement (cursor fb changes are still a bit slow, so you'll s=
till
> probably see spikes on cursor changes).
>=20
> You can try this on top of amd-staging-drm-next and I'd imagine it'd f=
ix
> your problems.
Patch does work for me.
Is there an easy way to backport this to 4.19 mainline? Would be very usefu=
l to
integrate the fix into stable kernels.
As it is currently it wont work on 4.19 because it uses <drm/drm_atomic_=
uapi.h>
which isnt mainlined yet. Brandon's hack works on 4.19 just in case it matt=
ers.
Last question, is this patch https://patchwork.freedesktop.org/patch/263412/
you just submitted related to this issue?=20
Thanks a LOT for tackling this Nicholas and Brandon