Re: [PATCH 1/1] drm/i915/rpm: Enable runtime pm autosuspend by default

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On Wed, Nov 10, 2021 at 05:24:22PM -0500, Rodrigo Vivi wrote:
> On Wed, Nov 10, 2021 at 01:46:46PM +0200, Ville Syrjälä wrote:
> > On Wed, Nov 10, 2021 at 10:59:26AM +0530, Tilak Tangudu wrote:
> > > Enable runtime pm autosuspend by default for gen12 and
> > > later versions.
> > > 
> > > Signed-off-by: Tilak Tangudu <tilak.tangudu@xxxxxxxxx>
> > > ---
> > >  drivers/gpu/drm/i915/intel_runtime_pm.c | 4 ++++
> > >  1 file changed, 4 insertions(+)
> > > 
> > > diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > index eaf7688f517d..ef75f24288ef 100644
> > > --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> > > @@ -600,6 +600,10 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
> > >  		pm_runtime_use_autosuspend(kdev);
> > >  	}
> > >  
> > > +	/* XXX: Enable by default only for newer platforms for now */
> > > +	if (GRAPHICS_VER(i915) >= 12)
> > > +		pm_runtime_allow(kdev);
> > 
> > If we change some default then we should just do it across the board.
> > There is nothing special about tgl+.
> 
> Nothing special with tgl and newer platforms indeed. This is why we
> have the XXX message here.
> 
> The problem in the last attempt was with the gen9 platforms.

What problem was that?

> Apparently some special there, and I didn't want to block the
> progress while we cannot get to the gen9 bugs.
> 
> > 
> > > +
> > >  	/*
> > >  	 * The core calls the driver load handler with an RPM reference held.
> > >  	 * We drop that here and will reacquire it during unloading in
> > > -- 
> > > 2.25.1
> > 
> > -- 
> > Ville Syrjälä
> > Intel

-- 
Ville Syrjälä
Intel



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