[Intel-gfx] [PATCH] drm/i915: Disable WaGsvRC0ResidencyMethod for vlv

[Ville Syrjälä]

On Thu, Mar 19, 2015 at 04:09:44PM +0530, deepak.s at linux.intel.com wrote:
> From: Deepak S <deepak.s at linux.intel.com>
> 
> Unfortunately WaGsvRC0ResidencyMethod causing system freeze on some
> of the baytrail systems :(. Switching back to legacy mode rps.

Do we want to throw out the actual code as well then?

> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88012
> Signed-off-by: Deepak S <deepak.s at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_irq.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index 6d8340d..7bbdede 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -4241,11 +4241,7 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
>  	INIT_WORK(&dev_priv->l3_parity.error_work, ivybridge_parity_work);
>  
>  	/* Let's track the enabled rps events */
> -	if (IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv))
> -		/* WaGsvRC0ResidencyMethod:vlv */
> -		dev_priv->pm_rps_events = GEN6_PM_RP_DOWN_EI_EXPIRED | GEN6_PM_RP_UP_EI_EXPIRED;
> -	else
> -		dev_priv->pm_rps_events = GEN6_PM_RPS_EVENTS;
> +	dev_priv->pm_rps_events = GEN6_PM_RPS_EVENTS;
>  
>  	INIT_DELAYED_WORK(&dev_priv->gpu_error.hangcheck_work,
>  			  i915_hangcheck_elapsed);
> -- 
> 1.9.1

-- 
Ville Syrjälä
Intel OTC