Re: [PATCH RESEND v7 11/12] drm/i915: Use to_gt() helper for GGTT accesses

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Hi Matt,

> > diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> > index 95174938b160..2619bb17b6eb 100644
> > --- a/drivers/gpu/drm/i915/i915_driver.c
> > +++ b/drivers/gpu/drm/i915/i915_driver.c
> > @@ -571,6 +571,8 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
> >  
> >  	i915_perf_init(dev_priv);
> >  
> > +	intel_gt_init_hw_early(to_gt(dev_priv), to_gt(dev_priv)->ggtt);
> 
> intel_gt_init_hw_early is defined as
> 
>         void intel_gt_init_hw_early(struct intel_gt *gt, struct i915_ggtt *ggtt)
>         {
>                 gt->ggtt = ggtt;
>         }
> 
> so this call is now essentially doing
> 
>         to_gt(dev_priv)->ggtt = to_gt(dev_priv)->ggtt
> 
> which isn't what you intended.  It might be better to just drop the
> function completely and instead assign the gt's ggtt pointer here to a
> drmm_kzalloc() dynamic allocation.

ehehe... yes, I actually had this fixed (in mock device it's
indeed correct), but I might have brought it back by mistake.
Thanks for noticing it.

The next patch removes it.

Andi



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