[Intel-gfx] [PATCH 04/19] drm/i915/selftests: Check we can recover a wedged device

[Chris Wilson]

Quoting Tvrtko Ursulin (2018-12-13 08:28:54)
> 
> On 12/12/2018 13:41, Chris Wilson wrote:
> > After declaring a terminally wedged device, we allow ourselves to
> > recover on the next GPU reset (manually triggered), or resume. Check
> > that resetting a wedged device does work.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> > ---
> >   .../gpu/drm/i915/selftests/intel_hangcheck.c  | 23 +++++++++++++++++++
> >   1 file changed, 23 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> > index 805e40aff407..65c318d14077 100644
> > --- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> > +++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
> > @@ -385,6 +385,28 @@ static int igt_global_reset(void *arg)
> >       return err;
> >   }
> >   
> > +static int igt_wedged_reset(void *arg)
> > +{
> > +     struct drm_i915_private *i915 = arg;
> > +
> > +     /* Check that we can recover a wedged device with a GPU reset */
> > +
> > +     igt_global_reset_lock(i915);
> > +     mutex_lock(&i915->drm.struct_mutex);
> 
> rpm get?

True.
-Chris