drm/i915: make intel_wakeref work on the rpm struct

intel_runtime_pm is the only thing they use from the i915 structure,
so use that directly.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190613232156.34940-9-daniele.ceraolospurio@intel.com

drivers/gpu/drm/i915/gt/intel_engine_pm.c

@@ -37,7 +37,7 @@ static int __engine_unpark(struct intel_wakeref *wf)
 
 void intel_engine_pm_get(struct intel_engine_cs *engine)
 {
-	intel_wakeref_get(engine->i915, &engine->wakeref, __engine_unpark);
+	intel_wakeref_get(&engine->i915->runtime_pm, &engine->wakeref, __engine_unpark);
 }
 
 void intel_engine_park(struct intel_engine_cs *engine)
@@ -131,7 +131,7 @@ static int __engine_park(struct intel_wakeref *wf)
 
 void intel_engine_pm_put(struct intel_engine_cs *engine)
 {
-	intel_wakeref_put(engine->i915, &engine->wakeref, __engine_park);
+	intel_wakeref_put(&engine->i915->runtime_pm, &engine->wakeref, __engine_park);
 }
 
 void intel_engine_init__pm(struct intel_engine_cs *engine)

drivers/gpu/drm/i915/gt/intel_gt_pm.c

@@ -52,7 +52,7 @@ static int intel_gt_unpark(struct intel_wakeref *wf)
 
 void intel_gt_pm_get(struct drm_i915_private *i915)
 {
-	intel_wakeref_get(i915, &i915->gt.wakeref, intel_gt_unpark);
+	intel_wakeref_get(&i915->runtime_pm, &i915->gt.wakeref, intel_gt_unpark);
 }
 
 static int intel_gt_park(struct intel_wakeref *wf)
@@ -77,7 +77,7 @@ static int intel_gt_park(struct intel_wakeref *wf)
 
 void intel_gt_pm_put(struct drm_i915_private *i915)
 {
-	intel_wakeref_put(i915, &i915->gt.wakeref, intel_gt_park);
+	intel_wakeref_put(&i915->runtime_pm, &i915->gt.wakeref, intel_gt_park);
 }
 
 void intel_gt_pm_init(struct drm_i915_private *i915)

drivers/gpu/drm/i915/i915_gem_fence_reg.c

@@ -804,7 +804,7 @@ void i915_ggtt_init_fences(struct i915_ggtt *ggtt)
 
 	INIT_LIST_HEAD(&ggtt->fence_list);
 	INIT_LIST_HEAD(&ggtt->userfault_list);
-	intel_wakeref_auto_init(&ggtt->userfault_wakeref, i915);
+	intel_wakeref_auto_init(&ggtt->userfault_wakeref, &i915->runtime_pm);
 
 	detect_bit_6_swizzle(i915);
 

drivers/gpu/drm/i915/intel_wakeref.c

@@ -4,23 +4,23 @@
  * Copyright © 2019 Intel Corporation
  */
 
-#include "intel_drv.h"
-#include "intel_wakeref.h"
+#include "intel_runtime_pm.h"
+#include "i915_gem.h"
 
-static void rpm_get(struct drm_i915_private *i915, struct intel_wakeref *wf)
+static void rpm_get(struct intel_runtime_pm *rpm, struct intel_wakeref *wf)
 {
-	wf->wakeref = intel_runtime_pm_get(&i915->runtime_pm);
+	wf->wakeref = intel_runtime_pm_get(rpm);
 }
 
-static void rpm_put(struct drm_i915_private *i915, struct intel_wakeref *wf)
+static void rpm_put(struct intel_runtime_pm *rpm, struct intel_wakeref *wf)
 {
 	intel_wakeref_t wakeref = fetch_and_zero(&wf->wakeref);
 
-	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
+	intel_runtime_pm_put(rpm, wakeref);
 	GEM_BUG_ON(!wakeref);
 }
 
-int __intel_wakeref_get_first(struct drm_i915_private *i915,
+int __intel_wakeref_get_first(struct intel_runtime_pm *rpm,
 			      struct intel_wakeref *wf,
 			      int (*fn)(struct intel_wakeref *wf))
 {
@@ -34,11 +34,11 @@ int __intel_wakeref_get_first(struct drm_i915_private *i915,
 	if (!atomic_read(&wf->count)) {
 		int err;
 
-		rpm_get(i915, wf);
+		rpm_get(rpm, wf);
 
 		err = fn(wf);
 		if (unlikely(err)) {
-			rpm_put(i915, wf);
+			rpm_put(rpm, wf);
 			mutex_unlock(&wf->mutex);
 			return err;
 		}
@@ -51,7 +51,7 @@ int __intel_wakeref_get_first(struct drm_i915_private *i915,
 	return 0;
 }
 
-int __intel_wakeref_put_last(struct drm_i915_private *i915,
+int __intel_wakeref_put_last(struct intel_runtime_pm *rpm,
 			     struct intel_wakeref *wf,
 			     int (*fn)(struct intel_wakeref *wf))
 {
@@ -59,7 +59,7 @@ int __intel_wakeref_put_last(struct drm_i915_private *i915,
 
 	err = fn(wf);
 	if (likely(!err))
-		rpm_put(i915, wf);
+		rpm_put(rpm, wf);
 	else
 		atomic_inc(&wf->count);
 	mutex_unlock(&wf->mutex);
@@ -86,17 +86,17 @@ static void wakeref_auto_timeout(struct timer_list *t)
 	wakeref = fetch_and_zero(&wf->wakeref);
 	spin_unlock_irqrestore(&wf->lock, flags);
 
-	intel_runtime_pm_put(&wf->i915->runtime_pm, wakeref);
+	intel_runtime_pm_put(wf->rpm, wakeref);
 }
 
 void intel_wakeref_auto_init(struct intel_wakeref_auto *wf,
-			     struct drm_i915_private *i915)
+			     struct intel_runtime_pm *rpm)
 {
 	spin_lock_init(&wf->lock);
 	timer_setup(&wf->timer, wakeref_auto_timeout, 0);
 	refcount_set(&wf->count, 0);
 	wf->wakeref = 0;
-	wf->i915 = i915;
+	wf->rpm = rpm;
 }
 
 void intel_wakeref_auto(struct intel_wakeref_auto *wf, unsigned long timeout)
@@ -110,13 +110,13 @@ void intel_wakeref_auto(struct intel_wakeref_auto *wf, unsigned long timeout)
 	}
 
 	/* Our mission is that we only extend an already active wakeref */
-	assert_rpm_wakelock_held(&wf->i915->runtime_pm);
+	assert_rpm_wakelock_held(wf->rpm);
 
 	if (!refcount_inc_not_zero(&wf->count)) {
 		spin_lock_irqsave(&wf->lock, flags);
 		if (!refcount_inc_not_zero(&wf->count)) {
 			GEM_BUG_ON(wf->wakeref);
-			wf->wakeref = intel_runtime_pm_get_if_in_use(&wf->i915->runtime_pm);
+			wf->wakeref = intel_runtime_pm_get_if_in_use(wf->rpm);
 			refcount_set(&wf->count, 1);
 		}
 		spin_unlock_irqrestore(&wf->lock, flags);

drivers/gpu/drm/i915/intel_wakeref.h

@@ -13,7 +13,7 @@
 #include <linux/stackdepot.h>
 #include <linux/timer.h>
 
-struct drm_i915_private;
+struct intel_runtime_pm;
 
 typedef depot_stack_handle_t intel_wakeref_t;
 
@@ -31,10 +31,10 @@ void __intel_wakeref_init(struct intel_wakeref *wf,
 	__intel_wakeref_init((wf), &__key);				\
 } while (0)
 
-int __intel_wakeref_get_first(struct drm_i915_private *i915,
+int __intel_wakeref_get_first(struct intel_runtime_pm *rpm,
 			      struct intel_wakeref *wf,
 			      int (*fn)(struct intel_wakeref *wf));
-int __intel_wakeref_put_last(struct drm_i915_private *i915,
+int __intel_wakeref_put_last(struct intel_runtime_pm *rpm,
 			     struct intel_wakeref *wf,
 			     int (*fn)(struct intel_wakeref *wf));
 
@@ -55,12 +55,12 @@ int __intel_wakeref_put_last(struct drm_i915_private *i915,
  * code otherwise.
  */
 static inline int
-intel_wakeref_get(struct drm_i915_private *i915,
+intel_wakeref_get(struct intel_runtime_pm *rpm,
 		  struct intel_wakeref *wf,
 		  int (*fn)(struct intel_wakeref *wf))
 {
 	if (unlikely(!atomic_inc_not_zero(&wf->count)))
-		return __intel_wakeref_get_first(i915, wf, fn);
+		return __intel_wakeref_get_first(rpm, wf, fn);
 
 	return 0;
 }
@@ -82,12 +82,12 @@ intel_wakeref_get(struct drm_i915_private *i915,
  * code otherwise.
  */
 static inline int
-intel_wakeref_put(struct drm_i915_private *i915,
+intel_wakeref_put(struct intel_runtime_pm *rpm,
 		  struct intel_wakeref *wf,
 		  int (*fn)(struct intel_wakeref *wf))
 {
 	if (atomic_dec_and_mutex_lock(&wf->count, &wf->mutex))
-		return __intel_wakeref_put_last(i915, wf, fn);
+		return __intel_wakeref_put_last(rpm, wf, fn);
 
 	return 0;
 }
@@ -133,7 +133,7 @@ intel_wakeref_active(struct intel_wakeref *wf)
 }
 
 struct intel_wakeref_auto {
-	struct drm_i915_private *i915;
+	struct intel_runtime_pm *rpm;
 	struct timer_list timer;
 	intel_wakeref_t wakeref;
 	spinlock_t lock;
@@ -158,7 +158,7 @@ struct intel_wakeref_auto {
 void intel_wakeref_auto(struct intel_wakeref_auto *wf, unsigned long timeout);
 
 void intel_wakeref_auto_init(struct intel_wakeref_auto *wf,
-			     struct drm_i915_private *i915);
+			     struct intel_runtime_pm *rpm);
 void intel_wakeref_auto_fini(struct intel_wakeref_auto *wf);
 
 #endif /* INTEL_WAKEREF_H */