[PATCH 2/3] drm/i915: Set adjustment to zero on Up/Down interrupts if freq is already max/min
Sagar Arun Kamble
sagar.a.kamble at intel.com
Mon Jan 16 06:25:11 UTC 2017
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
drivers/gpu/drm/i915/i915_irq.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index ce5663d..d3573e8 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1170,6 +1170,8 @@ static void gen6_pm_rps_work(struct work_struct *work)
adj *= 2;
else /* CHV needs even encode values */
adj = IS_CHERRYVIEW(dev_priv) ? 2 : 1;
+ if (new_delay >= dev_priv->rps.max_freq_softlimit)
+ adj = 0;
/*
* For better performance, jump directly
* to RPe if we're below it.
@@ -1191,6 +1193,8 @@ static void gen6_pm_rps_work(struct work_struct *work)
adj *= 2;
else /* CHV needs even encode values */
adj = IS_CHERRYVIEW(dev_priv) ? -2 : -1;
+ if (new_delay <= dev_priv->rps.min_freq_softlimit)
+ adj = 0;
} else { /* unknown event */
adj = 0;
}
--
1.9.1
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