[Intel-gfx] [PATCH] drm/i915/kbl: Reset secondary power well requests left on by DMC/KVMR

[Patrik Jakobsson]

On Fri, Apr 15, 2016 at 10:32:58PM +0300, Imre Deak wrote:
> The workaround added in c6782b76d31a ("drm/i915/gen9: Reset secondary power
> well requests left on by DMC/KVMR") needs to be applied on Kabylake too as
> shown by the corresponding timeout errors about power well 1 and MISC IO
> power well disabling in the latest CI run.
> 
> CC: Patrik Jakobsson <patrik.jakobsson at linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak at intel.com>

Ok, so this seems to affect all DMC firmwares we have so far? Any news on the
bug report?

Reviewed-by: Patrik Jakobsson <patrik.jakobsson at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/intel_runtime_pm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
> index 259f66f..1242fb5 100644
> --- a/drivers/gpu/drm/i915/intel_runtime_pm.c
> +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
> @@ -709,7 +709,7 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv,
>  			DRM_DEBUG_KMS("Disabling %s\n", power_well->name);
>  		}
>  
> -		if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
> +		if (IS_GEN9(dev_priv))
>  			gen9_sanitize_power_well_requests(dev_priv, power_well);
>  	}
>  
> -- 
> 2.5.0
> 

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