Chris Wilson 4fe6abb8f5 drm/i915/gt: Ignore irq enabling on the virtual engines ... We do not use the virtual engines for interrupts (they have physical components), but we do use them to decouple the fence signaling during submission. Currently, when we submit a completed request, we try to enable the interrupt handler for the virtual engine, but we never disarm it. A quick fix is then to mark the irq as enabled, and it will then remain enabled -- and this prevents us from waking the device and never letting it sleep again. Fixes: f8db4d051b ("drm/i915: Initialise breadcrumb lists on the virtual engine") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: <stable@vger.kernel.org> # v5.5+ Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200711203236.12330-1-chris@chris-wilson.co.uk		2020-07-13 12:23:12 +01:00
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drm	drm/i915/gt: Ignore irq enabling on the virtual engines	2020-07-13 12:23:12 +01:00
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