Re: [PATCH] drm/i915: Always load guc by default.

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On Thu, Nov 24, 2016 at 08:15:31AM +0000, Tvrtko Ursulin wrote:
> 
> On 24/11/2016 07:13, Chris Wilson wrote:
> >On Wed, Nov 23, 2016 at 04:52:38PM -0800, Anusha Srivatsa wrote:
> >>Remove the enable_guc_loading parameter. Load the GuC on
> >>plaforms that have GuC. All issues we found so far are related
> >>to GuC features like the command submission, but no bug is related
> >>to the guc loading itself.
> >>
> >>This addresses the case when we need GuC loaded even with no GuC feature
> >>in use, like - GuC  authenticating HuC loading.
> >
> >Why not just load the firmware if it may be used?
> 
> It was discussed briefly in the other thread, but I suppose as soon
> as the HuC patches go in that would be always so it may not be that
> useful.
> 
> Unless there is a reason to add a HuC enable/disable parameter in
> general. I have no idea on that one.

In hindsight, we should have had i915.enable_dmc to easily protect users
against failures. History says we will regret enabling a new piece of
hw/fw without a feature option.
-chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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