[Intel-gfx] [RFC] drm/i915: Allow the UMD to configure their own power clock state

[Daniel Vetter]

On Wed, May 10, 2017 at 2:59 PM, Joonas Lahtinen
<joonas.lahtinen at linux.intel.com> wrote:
>> @@ -841,6 +847,11 @@ static int gen9_init_workarounds(struct intel_engine_cs *engine)
>>       if (ret)
>>               return ret;
>>
>> +     /* Allow the UMD to configure their own power clock state */
>> +     ret = wa_ring_whitelist_reg(engine, GEN8_R_PWR_CLK_STATE);
>> +     if (ret)
>> +             return ret;
>
> This is not a workaround, so it should be part of the cmd parser and
> have an userspace.

Yeah, the "This allows userspace ..." start of the commit message
should have been a dead giveaway that we do indeed need the userspace
patch for this too.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch