drm/i915: Don't wake the device up to check if the engine is asleep

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If the entire device is powered off, we can safely assume that the
engine is also asleep (and idle).

Reported-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: a091d4ee93 ("drm/i915: Hold a wakeref for probing the ring registers")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180212093928.6005-1-chris@chris-wilson.co.uk

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Chris Wilson 2018-02-12 09:39:28 +00:00

parent ad51690707

commit 74d00d28a1

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/i915/intel_engine_cs.c

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