drm/i915: Rebalance runtime pm vs forcewake
Calling intel_runtime_pm_put() is illegal from a soft-irq context, so
revert the crude hack
commit aa0b3b5bb8768c1a6a6788869d9c7015eae7e80c
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Tue Apr 1 14:55:07 2014 -0300
drm/i915: don't schedule force_wake_timer at gen6_read
and apply the single line corrective instead.
v2: assert forcewake is off after the forcewake_reset (Paulo)
References: https://bugs.freedesktop.org/show_bug.cgi?id=80913
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Deepak S <deepak.s@linux.intel.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 308774f..55a3fef 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1365,8 +1365,6 @@
if (WARN_ON_ONCE(!HAS_RUNTIME_PM(dev)))
return -ENODEV;
- assert_force_wake_inactive(dev_priv);
-
DRM_DEBUG_KMS("Suspending device\n");
/*
@@ -1405,6 +1403,7 @@
}
del_timer_sync(&dev_priv->gpu_error.hangcheck_timer);
+ intel_uncore_forcewake_reset(dev, false);
dev_priv->pm.suspended = true;
/*
@@ -1432,6 +1431,8 @@
intel_opregion_notify_adapter(dev, PCI_D3hot);
}
+ assert_force_wake_inactive(dev_priv);
+
DRM_DEBUG_KMS("Device suspended\n");
return 0;
}