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-rw-r--r--drivers/gpu/drm/i915/intel_display.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7c8dfcc9be43..186cde29994d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7658,6 +7658,10 @@ void gen6_disable_rps(struct drm_device *dev)
I915_WRITE(GEN6_RPNSWREQ, 1 << 31);
I915_WRITE(GEN6_PMINTRMSK, 0xffffffff);
I915_WRITE(GEN6_PMIER, 0);
+ /* Complete PM interrupt masking here doesn't race with the rps work
+ * item again unmasking PM interrupts because that is using a different
+ * register (PMIMR) to mask PM interrupts. The only risk is in leaving
+ * stale bits in PMIIR and PMIMR which gen6_enable_rps will clean up. */
spin_lock_irq(&dev_priv->rps_lock);
dev_priv->pm_iir = 0;
@@ -8655,6 +8659,7 @@ void intel_modeset_cleanup(struct drm_device *dev)
* enqueue unpin/hotplug work. */
drm_irq_uninstall(dev);
cancel_work_sync(&dev_priv->hotplug_work);
+ cancel_work_sync(&dev_priv->rps_work);
/* flush any delayed tasks or pending work */
flush_scheduled_work();