[PATCH] drm/i915/icl: Don't try to reset single IIR bit more than once

Michal Wajdeczko michal.wajdeczko at intel.com
Mon Apr 8 20:18:42 UTC 2019


This is too brave.

Bspec: 21144
References: commit d02b98b8e2 ("drm/i915/icl: Handle RPS interrupts correctly for Gen11")
Suggested-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6454ddc37f8b..c5156c230ce3 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -472,8 +472,7 @@ void gen11_reset_rps_interrupts(struct drm_i915_private *dev_priv)
 {
 	spin_lock_irq(&dev_priv->irq_lock);
 
-	while (gen11_reset_one_iir(dev_priv, 0, GEN11_GTPM))
-		;
+	gen11_reset_one_iir(dev_priv, 0, GEN11_GTPM);
 
 	dev_priv->gt_pm.rps.pm_iir = 0;
 
-- 
2.19.2



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