Changeset View
Changeset View
Standalone View
Standalone View
sys/dev/drm/core/include/drm/drm_debugfs.h
- This file was added.
/* | |||||
* 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_ | |||||
#include <linux/types.h> | |||||
#include <linux/seq_file.h> | |||||
/** | |||||
* struct drm_info_list - debugfs info list entry | |||||
* | |||||
* This structure represents a debugfs file to be created by the drm | |||||
* core. | |||||
*/ | |||||
struct drm_info_list { | |||||
/** @name: file name */ | |||||
const char *name; | |||||
/** | |||||
* @show: | |||||
* | |||||
* Show callback. &seq_file->private will be set to the &struct | |||||
* drm_info_node corresponding to the instance of this info on a given | |||||
* &struct drm_minor. | |||||
*/ | |||||
int (*show)(struct seq_file*, void*); | |||||
/** @driver_features: Required driver features for this entry */ | |||||
u32 driver_features; | |||||
/** @data: Driver-private data, should not be device-specific. */ | |||||
void *data; | |||||
}; | |||||
/** | |||||
* struct drm_info_node - Per-minor debugfs node structure | |||||
* | |||||
* This structure represents a debugfs file, as an instantiation of a &struct | |||||
* drm_info_list on a &struct drm_minor. | |||||
* | |||||
* FIXME: | |||||
* | |||||
* No it doesn't make a hole lot of sense that we duplicate debugfs entries for | |||||
* both the render and the primary nodes, but that's how this has organically | |||||
* grown. It should probably be fixed, with a compatibility link, if needed. | |||||
*/ | |||||
struct drm_info_node { | |||||
/** @minor: &struct drm_minor for this node. */ | |||||
struct drm_minor *minor; | |||||
/** @info_ent: template for this node. */ | |||||
const struct drm_info_list *info_ent; | |||||
/* private: */ | |||||
struct list_head list; | |||||
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_ */ |