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If we cannot claim the timeline->mutex while preparing for a wait on it, we have to skip the timeline. In doing so, treat it as active so that under a intel_gt_wait_for_idle() loop, we repeat the wait after scheduling away. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191006165002.30312-4-chris@chris-wilson.co.uk |
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