drm/i915/pmu: Avoid using globals for CPU hotplug state
Attempting to bind / unbind module from devices where we have both integrated and discreete GPU handled by i915 can lead to leaks and warnings from cpuhp: Error: Removing state XXX which has instances left. Let's move the state to i915_pmu. Fixes: 05488673 ("drm/i915/pmu: Support multiple GPUs") Signed-off-by:Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20200219161822.24592-1-michal.winiarski@intel.com
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