Quoting Ville: "the forcewake timer might still be active until the uncore suspend, and having active forcewakes while we've already told the GT wake stuff to stop acting normally doesn't seem quite right to me."
Reported-by: Ville Syrjälä ville.syrjala@linux.intel.com Suggested-by: Imre Deak imre.deak@intel.com Signed-off-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Imre Deak imre.deak@intel.com --- Changes in v2: -Rebase on current (July 6th 2017) drm-next
Changes in v3: -Add Imre's Reviewed-by --- drivers/gpu/drm/i915/i915_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 4715f320c8fa..5bf231abe010 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -2490,6 +2490,8 @@ static int intel_runtime_suspend(struct device *kdev)
intel_runtime_pm_disable_interrupts(dev_priv);
+ intel_uncore_suspend(dev_priv); + ret = 0; if (IS_GEN9_LP(dev_priv)) { bxt_display_core_uninit(dev_priv); @@ -2502,6 +2504,8 @@ static int intel_runtime_suspend(struct device *kdev)
if (ret) { DRM_ERROR("Runtime suspend failed, disabling it (%d)\n", ret); + intel_uncore_runtime_resume(dev_priv); + intel_runtime_pm_enable_interrupts(dev_priv);
enable_rpm_wakeref_asserts(dev_priv); @@ -2509,8 +2513,6 @@ static int intel_runtime_suspend(struct device *kdev) return ret; }
- intel_uncore_suspend(dev_priv); - enable_rpm_wakeref_asserts(dev_priv); WARN_ON_ONCE(atomic_read(&dev_priv->pm.wakeref_count));