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(parent: ebd9aff) | patch
drm/msm/gpu: make ringbuffer readonly
authorRob Clark <robdclark@chromium.org>
Mon, 17 Aug 2020 16:23:09 +0000 (09:23 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 17 Sep 2020 11:47:56 +0000 (13:47 +0200)
commit8cbe9b765487ef1b3f9ea37a768d4907ca577b56
tree889ee69315b634d6b8c846b9a14aa6b372bb3a80tree | snapshot
parentebd9aff7b62ad70fa06ca0cb468a178f6c057fe4commit | diff
drm/msm/gpu: make ringbuffer readonly

[ Upstream commit 352c83fb39cae3eff95a8e1ed23006291abb6196 ]

The GPU has no business writing into the ringbuffer, let's make it
readonly to the GPU.

Fixes: 7198e6b03155 ("drm/msm: add a3xx gpu support")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/msm/msm_ringbuffer.c diff | blob | history
wrapfs-5.3.y