diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 17c4466087a48b8558540ccf37f82626610e3b2f..70a4c9bb7b809b13fd3d7a5b746d9adbdfc97907 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -849,6 +849,7 @@ static int i915_runtime_suspend(struct device *device) struct drm_i915_private *dev_priv = dev->dev_private; WARN_ON(!HAS_RUNTIME_PM(dev)); + assert_force_wake_inactive(dev_priv); DRM_DEBUG_KMS("Suspending device\n"); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 6503a5c513855491f2bb64465d2ac64eae97916a..3fe5a35f98a762ce9e9a0f9dc054b93737db3879 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2561,6 +2561,7 @@ extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e, */ void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv, int fw_engine); void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine); +void assert_force_wake_inactive(struct drm_i915_private *dev_priv); int sandybridge_pcode_read(struct drm_i915_private *dev_priv, u8 mbox, u32 *val); int sandybridge_pcode_write(struct drm_i915_private *dev_priv, u8 mbox, u32 val); diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 467d5687e129fa25c4d621704861ed5510bfbac2..8cb0a33054a6649e4539a9a49b6afdc3b388bea3 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -428,6 +428,14 @@ void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv, int fw_engine) intel_runtime_pm_put(dev_priv); } +void assert_force_wake_inactive(struct drm_i915_private *dev_priv) +{ + if (!dev_priv->uncore.funcs.force_wake_get) + return; + + WARN_ON(dev_priv->uncore.forcewake_count > 0); +} + /* We give fast paths for the really cool registers */ #define NEEDS_FORCE_WAKE(dev_priv, reg) \ ((reg) < 0x40000 && (reg) != FORCEWAKE)