drm/i915/runtime_pm: Prefer drm_WARN* over WARN*

struct drm_device specific drm_WARN* macros include device information
in the backtrace, so we know what device the warnings originate from.

Prefer drm_WARN* over WARN*.

Conversion is done with below semantic patch:

@@
identifier func, T;
@@
func(struct intel_runtime_pm *T,...) {
+ struct drm_i915_private *i915 = container_of(T, struct drm_i915_private, runtime_pm);
<+...
(
-WARN(
+drm_WARN(&i915->drm,
...)
|
-WARN_ON(
+drm_WARN_ON(&i915->drm,
...)
|
-WARN_ONCE(
+drm_WARN_ONCE(&i915->drm,
...)
|
-WARN_ON_ONCE(
+drm_WARN_ON_ONCE(&i915->drm,
...)
)
...+>

}

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200504181600.18503-10-pankaj.laxminarayan.bharadiya@intel.com

drivers/gpu/drm/i915/intel_runtime_pm.c

@@ -116,6 +116,9 @@ track_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm)
 static void untrack_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm,
 					     depot_stack_handle_t stack)
 {
+	struct drm_i915_private *i915 = container_of(rpm,
+						     struct drm_i915_private,
+						     runtime_pm);
 	unsigned long flags, n;
 	bool found = false;
 
@@ -134,9 +137,9 @@ static void untrack_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm,
 	}
 	spin_unlock_irqrestore(&rpm->debug.lock, flags);
 
-	if (WARN(!found,
-		 "Unmatched wakeref (tracking %lu), count %u\n",
-		 rpm->debug.count, atomic_read(&rpm->wakeref_count))) {
+	if (drm_WARN(&i915->drm, !found,
+		     "Unmatched wakeref (tracking %lu), count %u\n",
+		     rpm->debug.count, atomic_read(&rpm->wakeref_count))) {
 		char *buf;
 
 		buf = kmalloc(PAGE_SIZE, GFP_NOWAIT | __GFP_NOWARN);
@@ -355,10 +358,14 @@ intel_runtime_pm_release(struct intel_runtime_pm *rpm, int wakelock)
 static intel_wakeref_t __intel_runtime_pm_get(struct intel_runtime_pm *rpm,
 					      bool wakelock)
 {
+	struct drm_i915_private *i915 = container_of(rpm,
+						     struct drm_i915_private,
+						     runtime_pm);
 	int ret;
 
 	ret = pm_runtime_get_sync(rpm->kdev);
-	WARN_ONCE(ret < 0, "pm_runtime_get_sync() failed: %d\n", ret);
+	drm_WARN_ONCE(&i915->drm, ret < 0,
+		      "pm_runtime_get_sync() failed: %d\n", ret);
 
 	intel_runtime_pm_acquire(rpm, wakelock);
 
@@ -539,6 +546,9 @@ void intel_runtime_pm_put(struct intel_runtime_pm *rpm, intel_wakeref_t wref)
  */
 void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 {
+	struct drm_i915_private *i915 = container_of(rpm,
+						     struct drm_i915_private,
+						     runtime_pm);
 	struct device *kdev = rpm->kdev;
 
 	/*
@@ -565,7 +575,8 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 
 		pm_runtime_dont_use_autosuspend(kdev);
 		ret = pm_runtime_get_sync(kdev);
-		WARN(ret < 0, "pm_runtime_get_sync() failed: %d\n", ret);
+		drm_WARN(&i915->drm, ret < 0,
+			 "pm_runtime_get_sync() failed: %d\n", ret);
 	} else {
 		pm_runtime_use_autosuspend(kdev);
 	}
@@ -580,11 +591,14 @@ void intel_runtime_pm_enable(struct intel_runtime_pm *rpm)
 
 void intel_runtime_pm_disable(struct intel_runtime_pm *rpm)
 {
+	struct drm_i915_private *i915 = container_of(rpm,
+						     struct drm_i915_private,
+						     runtime_pm);
 	struct device *kdev = rpm->kdev;
 
 	/* Transfer rpm ownership back to core */
-	WARN(pm_runtime_get_sync(kdev) < 0,
-	     "Failed to pass rpm ownership back to core\n");
+	drm_WARN(&i915->drm, pm_runtime_get_sync(kdev) < 0,
+		 "Failed to pass rpm ownership back to core\n");
 
 	pm_runtime_dont_use_autosuspend(kdev);
 
@@ -594,12 +608,15 @@ void intel_runtime_pm_disable(struct intel_runtime_pm *rpm)
 
 void intel_runtime_pm_driver_release(struct intel_runtime_pm *rpm)
 {
+	struct drm_i915_private *i915 = container_of(rpm,
+						     struct drm_i915_private,
+						     runtime_pm);
 	int count = atomic_read(&rpm->wakeref_count);
 
-	WARN(count,
-	     "i915 raw-wakerefs=%d wakelocks=%d on cleanup\n",
-	     intel_rpm_raw_wakeref_count(count),
-	     intel_rpm_wakelock_count(count));
+	drm_WARN(&i915->drm, count,
+		 "i915 raw-wakerefs=%d wakelocks=%d on cleanup\n",
+		 intel_rpm_raw_wakeref_count(count),
+		 intel_rpm_wakelock_count(count));
 
 	untrack_all_intel_runtime_pm_wakerefs(rpm);
 }