drm/xe: Move part of xe_file cleanup to a helper

In order to make xe_file ref counted, move destruction of xe_file
members to a helper.

v2: Move xe_vm_close_and_put back into xe_file_close (Matt)
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240718210548.3580382-2-umesh.nerlige.ramappa@intel.comSigned-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 3d0c4a62)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_device.c

@@ -90,9 +90,25 @@ static int xe_file_open(struct drm_device *dev, struct drm_file *file)
 	return 0;
 }
 
+static void xe_file_destroy(struct xe_file *xef)
+{
+	struct xe_device *xe = xef->xe;
+
+	xa_destroy(&xef->exec_queue.xa);
+	mutex_destroy(&xef->exec_queue.lock);
+	xa_destroy(&xef->vm.xa);
+	mutex_destroy(&xef->vm.lock);
+
+	spin_lock(&xe->clients.lock);
+	xe->clients.count--;
+	spin_unlock(&xe->clients.lock);
+
+	xe_drm_client_put(xef->client);
+	kfree(xef);
+}
+
 static void xe_file_close(struct drm_device *dev, struct drm_file *file)
 {
-	struct xe_device *xe = to_xe_device(dev);
 	struct xe_file *xef = file->driver_priv;
 	struct xe_vm *vm;
 	struct xe_exec_queue *q;
@@ -108,21 +124,12 @@ static void xe_file_close(struct drm_device *dev, struct drm_file *file)
 		xe_exec_queue_kill(q);
 		xe_exec_queue_put(q);
 	}
-	xa_destroy(&xef->exec_queue.xa);
-	mutex_destroy(&xef->exec_queue.lock);
 	mutex_lock(&xef->vm.lock);
 	xa_for_each(&xef->vm.xa, idx, vm)
 		xe_vm_close_and_put(vm);
 	mutex_unlock(&xef->vm.lock);
-	xa_destroy(&xef->vm.xa);
-	mutex_destroy(&xef->vm.lock);
 
-	spin_lock(&xe->clients.lock);
-	xe->clients.count--;
-	spin_unlock(&xe->clients.lock);
-
-	xe_drm_client_put(xef->client);
-	kfree(xef);
+	xe_file_destroy(xef);
 }
 
 static const struct drm_ioctl_desc xe_ioctls[] = {