Re: [PATCH] drm/i915: Disable WaGsvRC0ResidencyMethod for vlv

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On Thursday 19 March 2015 04:48 PM, Ville Syrjälä wrote:
On Thu, Mar 19, 2015 at 04:09:44PM +0530, deepak.s@xxxxxxxxxxxxxxx wrote:
From: Deepak S <deepak.s@xxxxxxxxxxxxxxx>

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?

Chris as cleaned up patches for VLV rps WA. I think its worth a try

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88012
Signed-off-by: Deepak S <deepak.s@xxxxxxxxxxxxxxx>
---
  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

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