cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

drm_debugfs.h (3486B)

      1/*
      2 * Internal Header for the Direct Rendering Manager
      3 *
      4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
      5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
      6 * Copyright (c) 2009-2010, Code Aurora Forum.
      7 * All rights reserved.
      8 *
      9 * Author: Rickard E. (Rik) Faith <faith@valinux.com>
     10 * Author: Gareth Hughes <gareth@valinux.com>
     11 *
     12 * Permission is hereby granted, free of charge, to any person obtaining a
     13 * copy of this software and associated documentation files (the "Software"),
     14 * to deal in the Software without restriction, including without limitation
     15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     16 * and/or sell copies of the Software, and to permit persons to whom the
     17 * Software is furnished to do so, subject to the following conditions:
     18 *
     19 * The above copyright notice and this permission notice (including the next
     20 * paragraph) shall be included in all copies or substantial portions of the
     21 * Software.
     22 *
     23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     26 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     27 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     28 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     29 * OTHER DEALINGS IN THE SOFTWARE.
     30 */
     31
     32#ifndef _DRM_DEBUGFS_H_
     33#define _DRM_DEBUGFS_H_
     34
     35#include <linux/types.h>
     36#include <linux/seq_file.h>
     37/**
     38 * struct drm_info_list - debugfs info list entry
     39 *
     40 * This structure represents a debugfs file to be created by the drm
     41 * core.
     42 */
     43struct drm_info_list {
     44	/** @name: file name */
     45	const char *name;
     46	/**
     47	 * @show:
     48	 *
     49	 * Show callback. &seq_file->private will be set to the &struct
     50	 * drm_info_node corresponding to the instance of this info on a given
     51	 * &struct drm_minor.
     52	 */
     53	int (*show)(struct seq_file*, void*);
     54	/** @driver_features: Required driver features for this entry */
     55	u32 driver_features;
     56	/** @data: Driver-private data, should not be device-specific. */
     57	void *data;
     58};
     59
     60/**
     61 * struct drm_info_node - Per-minor debugfs node structure
     62 *
     63 * This structure represents a debugfs file, as an instantiation of a &struct
     64 * drm_info_list on a &struct drm_minor.
     65 *
     66 * FIXME:
     67 *
     68 * No it doesn't make a hole lot of sense that we duplicate debugfs entries for
     69 * both the render and the primary nodes, but that's how this has organically
     70 * grown. It should probably be fixed, with a compatibility link, if needed.
     71 */
     72struct drm_info_node {
     73	/** @minor: &struct drm_minor for this node. */
     74	struct drm_minor *minor;
     75	/** @info_ent: template for this node. */
     76	const struct drm_info_list *info_ent;
     77	/* private: */
     78	struct list_head list;
     79	struct dentry *dent;
     80};
     81
     82#if defined(CONFIG_DEBUG_FS)
     83void drm_debugfs_create_files(const struct drm_info_list *files,
     84			      int count, struct dentry *root,
     85			      struct drm_minor *minor);
     86int drm_debugfs_remove_files(const struct drm_info_list *files,
     87			     int count, struct drm_minor *minor);
     88#else
     89static inline void drm_debugfs_create_files(const struct drm_info_list *files,
     90					    int count, struct dentry *root,
     91					    struct drm_minor *minor)
     92{}
     93
     94static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
     95					   int count, struct drm_minor *minor)
     96{
     97	return 0;
     98}
     99#endif
    100
    101#endif /* _DRM_DEBUGFS_H_ */