drm/i915/ringbuffer: Clear semaphore sync registers on ring init

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Ensure that the sync registers are cleared every time we restart the
ring to avoid stale values from creeping in from random neutrinos.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108888
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181203113701.12106-3-chris@chris-wilson.co.uk

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Chris Wilson 2018-12-03 11:36:56 +00:00

parent f0ad62a631

commit f36c071f63

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drivers/gpu/drm/i915/intel_ringbuffer.c

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