drm/panfrost: Remove unnecessary hwaccess_lock spin_lock

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With the introduction of the as_lock to serialize address space registers,
the hwaccess_lock is only used within the job code and is not protecting
anything. panfrost_job_hw_submit() only accesses registers for 1 job slot
and it's already serialized by drm_sched.

Fixes: 7282f7645d ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-9-robh@kernel.org

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This commit is contained in:

Rob Herring 2019-08-26 17:33:17 -05:00

parent 62f1089f3c

commit 45d0dbd15a

3 changed files with 0 additions and 7 deletions

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1

drivers/gpu/drm/panfrost/panfrost_device.c

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2

drivers/gpu/drm/panfrost/panfrost_device.h

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4

drivers/gpu/drm/panfrost/panfrost_job.c

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