Oleksandr Andrushchenko c1e9cfc815 drm/xen-front: Fix mmap attributes for display buffers ...

[ Upstream commit 24ded292a5 ]

When GEM backing storage is allocated those are normal pages,
so there is no point using pgprot_writecombine while mmaping.
This fixes mismatch of buffer pages' memory attributes between
the frontend and backend which may cause screen artifacts.

Fixes: c575b7eeb8 ("drm/xen-front: Add support for Xen PV display frontend")

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Suggested-by: Julien Grall <julien.grall@arm.com>
Acked-by: Julien Grall <julien.grall@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190129150422.19867-1-andr2000@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-01-27 14:50:19 +01:00

..

drm

drm/xen-front: Fix mmap attributes for display buffers

2020-01-27 14:50:19 +01:00

host1x

gpu: host1x: Allocate gather copy for host1x

2019-12-31 16:35:29 +01:00

ipu-v3

gpu: ipu-v3: pre: don't trigger update if buffer address doesn't change

2019-12-05 09:21:07 +01:00

vga

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Makefile

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