drm/i915: Track the wakeref used to initialise display power domains

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On module load and unload, we grab the POWER_DOMAIN_INIT powerwells and
transfer them to the runtime-pm code. We can use our wakeref tracking to
verify that the wakeref is indeed passed from init to enable, and
disable to fini; and across suspend.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190114142129.24398-17-chris@chris-wilson.co.uk

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Chris Wilson 2019-01-14 14:21:25 +00:00

parent 0e6e0be4c9

commit 25c896bdb8

3 changed files with 88 additions and 68 deletions

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3

drivers/gpu/drm/i915/i915_debugfs.c

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2

drivers/gpu/drm/i915/i915_drv.h

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151

drivers/gpu/drm/i915/intel_runtime_pm.c

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