From ff9282613f6796db3fe85dc6cbb995223078f581 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 5 Jul 2012 15:02:17 +0100 Subject: [PATCH] drm/i915: Only request PM interrupts for the events we handled There is little point waking up every 10ms to service an interrupt which we then promptly ignore. So only program the the PMIER to enable interrupts for those events which we do handle, not all of them! Signed-off-by: Chris Wilson Cc: Jesse Barnes Cc: Eugeni Dodonov Cc: Ben Widawsky Reviewed-by: Ben Widawsky Reviewed-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0bb69fd255a9..a1495cd2a8e7 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2491,14 +2491,7 @@ static void gen6_enable_rps(struct drm_device *dev) gen6_set_rps(dev_priv->dev, (gt_perf_status & 0xff00) >> 8); /* requires MSI enabled */ - I915_WRITE(GEN6_PMIER, - GEN6_PM_MBOX_EVENT | - GEN6_PM_THERMAL_EVENT | - GEN6_PM_RP_DOWN_TIMEOUT | - GEN6_PM_RP_UP_THRESHOLD | - GEN6_PM_RP_DOWN_THRESHOLD | - GEN6_PM_RP_UP_EI_EXPIRED | - GEN6_PM_RP_DOWN_EI_EXPIRED); + I915_WRITE(GEN6_PMIER, GEN6_PM_DEFERRED_EVENTS); spin_lock_irq(&dev_priv->rps_lock); WARN_ON(dev_priv->pm_iir != 0); I915_WRITE(GEN6_PMIMR, 0); -- 2.20.1