[Intel-gfx] [PATCH 1/2] drm/i915: Split uncore init into vfunc setup and mmio setup

Chris Wilson chris at chris-wilson.co.uk
Sat Oct 7 15:28:47 UTC 2017


Quoting Michal Wajdeczko (2017-10-07 12:14:30)
> On Sat, 07 Oct 2017 10:56:58 +0200, Chris Wilson  
> > +void intel_uncore_init_mmio(struct drm_i915_private *dev_priv)
> > +{
> > +     i915_check_vgpu(dev_priv);
> > +
> > +     intel_uncore_edram_detect(dev_priv);
> > +     intel_uncore_fw_domains_init(dev_priv);
> 
> Do you plan to split fw_domains_init into early/mmio parts?
> Without such split use of intel_uncore_forcewake_for_reg
>  from uc_init_early will still be not possible.

Ah, I was mistaken in thinking the vfunc tables were enough. We still
have some mmio access in fw_domains_init that we need to split into
_early and _mmio parts. On the whole, what do we think, is the motion
still justified? I think it still is -- we have a lot of static
information here that is useful during early setup.
-Chris


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