[Intel-gfx] [PATCH v2 1/3] drm/i915: Make intel_detect_preproduction_hw easier to extend

[Jani Nikula]

On Mon, 30 Jan 2017, Joonas Lahtinen <joonas.lahtinen at linux.intel.com> wrote:
> On ma, 2017-01-30 at 10:44 +0000, Chris Wilson wrote:
>> As we add new generations, we should keep detecting new pre-production
>> system development platforms that were temporarily enabled to facilitate
>> initial development and now superseded by production systems. To make
>> it easier to add more platforms, split the if into a series of logical
>> operations.
>> 
>> v2: s/sdv/pre/ - not all system development vehicles are for
>> preproduction usage.
>> 
>> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>> Cc: "Zanoni, Paulo R" <paulo.r.zanoni at intel.com>
>> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
>> Cc: Jani Nikula <jani.nikula at intel.com>
>> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> <SNIP>
>
>>  static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
>>  {
>> -	if (IS_HSW_EARLY_SDV(dev_priv) ||
>> -	    IS_SKL_REVID(dev_priv, 0, SKL_REVID_F0))
>> +	bool pre = false;
>> +
>> +	pre |= IS_HSW_EARLY_SDV(dev_priv);
>> +	pre |= IS_SKL_REVID(dev_priv, 0, SKL_REVID_F0);
>
> Did you compare the asm with "pre = pre || ..."?

Yeah, this definitely needs to be optimized. :p

Acked-by: Jani Nikula <jani.nikula at intel.com>

on the series.

>
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
>
> Regards, Joonas

-- 
Jani Nikula, Intel Open Source Technology Center