Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes: > Before we return control to the system, and letting it reuse all the > pages being accessed by HW, we must disable the HW. At the moment, we > dare not reset the GPU if it will clobber the display, but once we know > the display has been disabled, we can proceed with the reset as we > shutdown the module. We know the next user must reinitialise the HW for > their purpose. > > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/489 > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: stable@xxxxxxxxxx Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/gt/intel_gt.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c > index f069551e412f..ebc29b6ee86c 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gt.c > +++ b/drivers/gpu/drm/i915/gt/intel_gt.c > @@ -616,6 +616,11 @@ void intel_gt_driver_unregister(struct intel_gt *gt) > void intel_gt_driver_release(struct intel_gt *gt) > { > struct i915_address_space *vm; > + intel_wakeref_t wakeref; > + > + /* Scrub all HW state upon release */ > + with_intel_runtime_pm(gt->uncore->rpm, wakeref) > + __intel_gt_reset(gt, ALL_ENGINES); > > vm = fetch_and_zero(>->vm); > if (vm) /* FIXME being called twice on error paths :( */ > -- > 2.20.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
