[Intel-gfx] [PATCH] drm/i915: Don't try to use DDR DVFS on CHV when disabled in the BIOS

[Jani Nikula]

On Wed, 09 Sep 2015, Ville Syrjälä <ville.syrjala at linux.intel.com> wrote:
> On Wed, Sep 09, 2015 at 04:41:04PM +0100, Chris Wilson wrote:
>> On Wed, Sep 09, 2015 at 06:28:50PM +0300, Ville Syrjälä wrote:
>> > On Tue, Sep 08, 2015 at 09:16:11PM +0100, Chris Wilson wrote:
>> > > Would it make sense to disable dvfs after a failure as well,
>> > > then the user is shown a single DRM_ERROR at runtime and we should
>> > > recover (by not going to the full WM next time)?
>> > 
>> > I wouldn't expect any failures after we've determined that it works.
>> > That would indicate Punit going belly up or something, and then I'm
>> > not sure anything would work anymore.
>> 
>> We didn't expect any before either :) And it sounds like you are arguing
>> that we should be reducing the noise from the victims as well :)
>
> Well, I think I'll still leave it as is. People have generally been
> opposed to adding code to deal with conditions that should never
> happen in real life.
>
> Should I be proven wrong, you can smack me on the head with a big
> "told you so!" sign ;)

Isn't that English for dealing with conditions that should never happen?
;)

BR,
Jani.


>
> -- 
> Ville Syrjälä
> Intel OTC
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-- 
Jani Nikula, Intel Open Source Technology Center