102 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			102 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Internal Header for the Direct Rendering Manager
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|  *
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|  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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|  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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|  * Copyright (c) 2009-2010, Code Aurora Forum.
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|  * All rights reserved.
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|  *
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|  * Author: Rickard E. (Rik) Faith <faith@valinux.com>
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|  * Author: Gareth Hughes <gareth@valinux.com>
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|  *
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|  * Permission is hereby granted, free of charge, to any person obtaining a
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|  * copy of this software and associated documentation files (the "Software"),
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|  * to deal in the Software without restriction, including without limitation
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|  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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|  * and/or sell copies of the Software, and to permit persons to whom the
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|  * Software is furnished to do so, subject to the following conditions:
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|  *
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|  * The above copyright notice and this permission notice (including the next
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|  * paragraph) shall be included in all copies or substantial portions of the
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|  * Software.
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|  *
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|  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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|  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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|  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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|  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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|  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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|  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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|  * OTHER DEALINGS IN THE SOFTWARE.
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|  */
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| 
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| #ifndef _DRM_DEBUGFS_H_
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| #define _DRM_DEBUGFS_H_
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| 
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| /**
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|  * struct drm_info_list - debugfs info list entry
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|  *
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|  * This structure represents a debugfs file to be created by the drm
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|  * core.
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|  */
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| struct drm_info_list {
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| 	/** @name: file name */
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| 	const char *name;
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| 	/**
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| 	 * @show:
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| 	 *
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| 	 * Show callback. &seq_file->private will be set to the &struct
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| 	 * drm_info_node corresponding to the instance of this info on a given
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| 	 * &struct drm_minor.
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| 	 */
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| 	int (*show)(struct seq_file*, void*);
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| 	/** @driver_features: Required driver features for this entry */
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| 	u32 driver_features;
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| 	/** @data: Driver-private data, should not be device-specific. */
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| 	void *data;
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| };
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| 
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| /**
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|  * struct drm_info_node - Per-minor debugfs node structure
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|  *
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|  * This structure represents a debugfs file, as an instantiation of a &struct
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|  * drm_info_list on a &struct drm_minor.
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|  *
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|  * FIXME:
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|  *
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|  * No it doesn't make a hole lot of sense that we duplicate debugfs entries for
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|  * both the render and the primary nodes, but that's how this has organically
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|  * grown. It should probably be fixed, with a compatibility link, if needed.
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|  */
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| struct drm_info_node {
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| 	/** @minor: &struct drm_minor for this node. */
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| 	struct drm_minor *minor;
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| 	/** @info_ent: template for this node. */
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| 	const struct drm_info_list *info_ent;
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| 	/* private: */
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| 	struct list_head list;
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| 	struct dentry *dent;
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| };
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| 
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| #if defined(CONFIG_DEBUG_FS)
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| int drm_debugfs_create_files(const struct drm_info_list *files,
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| 			     int count, struct dentry *root,
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| 			     struct drm_minor *minor);
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| int drm_debugfs_remove_files(const struct drm_info_list *files,
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| 			     int count, struct drm_minor *minor);
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| #else
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| static inline int drm_debugfs_create_files(const struct drm_info_list *files,
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| 					   int count, struct dentry *root,
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| 					   struct drm_minor *minor)
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| {
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| 	return 0;
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| }
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| 
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| static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
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| 					   int count, struct drm_minor *minor)
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| {
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| 	return 0;
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| }
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| #endif
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| 
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| #endif /* _DRM_DEBUGFS_H_ */
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