drm: Extract drm_debugfs.h

Doc polish will follow in the next patch.

v2: Put the include guard #endif at the end (Ville).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322205336.24549-1-daniel.vetter@ffwll.ch

drivers/gpu/drm/drm_debugfs.c

@@ -34,9 +34,12 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/export.h>
-#include <drm/drmP.h>
+
+#include <drm/drm_debugfs.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_atomic.h>
+#include <drm/drmP.h>
+
 #include "drm_internal.h"
 #include "drm_crtc_internal.h"
 

include/drm/drmP.h

@@ -78,6 +78,7 @@
 #include <drm/drm_prime.h>
 #include <drm/drm_pci.h>
 #include <drm/drm_file.h>
+#include <drm/drm_debugfs.h>
 
 struct module;
 
@@ -370,27 +371,6 @@ struct drm_ioctl_desc {
 #define DRM_SCANOUTPOS_IN_VBLANK    (1 << 1)
 #define DRM_SCANOUTPOS_ACCURATE     (1 << 2)
 
-/**
- * Info file list entry. This structure represents a debugfs or proc file to
- * be created by the drm core
- */
-struct drm_info_list {
-	const char *name; /** file name */
-	int (*show)(struct seq_file*, void*); /** show callback */
-	u32 driver_features; /**< Required driver features for this entry */
-	void *data;
-};
-
-/**
- * debugfs node structure. This structure represents a debugfs file.
- */
-struct drm_info_node {
-	struct list_head list;
-	struct drm_minor *minor;
-	const struct drm_info_list *info_ent;
-	struct dentry *dent;
-};
-
 /**
  * DRM device structure. This structure represent a complete card that
  * may contain multiple heads.
@@ -592,28 +572,6 @@ int drm_invalid_op(struct drm_device *dev, void *data,
  * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
  */
 
-				/* Debugfs support */
-#if defined(CONFIG_DEBUG_FS)
-extern int drm_debugfs_create_files(const struct drm_info_list *files,
-				    int count, struct dentry *root,
-				    struct drm_minor *minor);
-extern int drm_debugfs_remove_files(const struct drm_info_list *files,
-				    int count, struct drm_minor *minor);
-#else
-static inline int drm_debugfs_create_files(const struct drm_info_list *files,
-					   int count, struct dentry *root,
-					   struct drm_minor *minor)
-{
-	return 0;
-}
-
-static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
-					   int count, struct drm_minor *minor)
-{
-	return 0;
-}
-#endif
-
 			       /* sysfs support (drm_sysfs.c) */
 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
 

include/drm/drm_debugfs.h

@@ -0,0 +1,77 @@
+/*
+ * Internal Header for the Direct Rendering Manager
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
+ * All rights reserved.
+ *
+ * Author: Rickard E. (Rik) Faith <faith@valinux.com>
+ * Author: Gareth Hughes <gareth@valinux.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _DRM_DEBUGFS_H_
+#define _DRM_DEBUGFS_H_
+
+/**
+ * Info file list entry. This structure represents a debugfs or proc file to
+ * be created by the drm core
+ */
+struct drm_info_list {
+	const char *name; /** file name */
+	int (*show)(struct seq_file*, void*); /** show callback */
+	u32 driver_features; /**< Required driver features for this entry */
+	void *data;
+};
+
+/**
+ * debugfs node structure. This structure represents a debugfs file.
+ */
+struct drm_info_node {
+	struct list_head list;
+	struct drm_minor *minor;
+	const struct drm_info_list *info_ent;
+	struct dentry *dent;
+};
+
+#if defined(CONFIG_DEBUG_FS)
+int drm_debugfs_create_files(const struct drm_info_list *files,
+			     int count, struct dentry *root,
+			     struct drm_minor *minor);
+int drm_debugfs_remove_files(const struct drm_info_list *files,
+			     int count, struct drm_minor *minor);
+#else
+static inline int drm_debugfs_create_files(const struct drm_info_list *files,
+					   int count, struct dentry *root,
+					   struct drm_minor *minor)
+{
+	return 0;
+}
+
+static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
+					   int count, struct drm_minor *minor)
+{
+	return 0;
+}
+#endif
+
+#endif /* _DRM_DEBUGFS_H_ */