[Intel-gfx] [PATCH v2 2/2] drm/i915/pm: Print offending domain in refcount failure

[Imre Deak]

On ma, 2015-11-23 at 12:31 +0200, Jani Nikula wrote:
> On Fri, 20 Nov 2015, Ville Syrjälä <ville.syrjala at linux.intel.com>
> wrote:
> > On Fri, Nov 20, 2015 at 03:55:34PM +0000, Daniel Stone wrote:
> > > If we experience a refcounting failure in a power domain/well
> > > (unref'ing at
> > > least one too many times), log the name of the offending domain
> > > or well.
> > > 
> > > Signed-off-by: Daniel Stone <daniels at collabora.com>
> > 
> > Both patches look OK to me
> > Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Acked-by: Jani Nikula <jani.nikula at intel.com>

Push both patches to dinq, thanks for the patch and review.

--Imre

> > > ---
> > >  drivers/gpu/drm/i915/intel_runtime_pm.c | 8 ++++++--
> > >  1 file changed, 6 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > b/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > index 754f9bd..7237dea 100644
> > > --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > @@ -1499,11 +1499,15 @@ void intel_display_power_put(struct
> > > drm_i915_private *dev_priv,
> > >  
> > >  	mutex_lock(&power_domains->lock);
> > >  
> > > -	WARN_ON(!power_domains->domain_use_count[domain]);
> > > +	WARN(!power_domains->domain_use_count[domain],
> > > +	     "Use count on domain %s is already zero\n",
> > > +	     intel_display_power_domain_str(domain));
> > >  	power_domains->domain_use_count[domain]--;
> > >  
> > >  	for_each_power_well_rev(i, power_well, BIT(domain),
> > > power_domains) {
> > > -		WARN_ON(!power_well->count);
> > > +		WARN(!power_well->count,
> > > +		     "Use count on power well %s is already
> > > zero",
> > > +		     power_well->name);
> > >  
> > >  		if (!--power_well->count)
> > >  			intel_power_well_disable(dev_priv,
> > > power_well);
> > > -- 
> > > 2.5.0
> > > 
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > Intel-gfx at lists.freedesktop.org
> > > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>