/*
* 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>
#include <drm/drm_gpuvm.h>
/**
* DRM_DEBUGFS_GPUVA_INFO - & drm_info_list entry to dump a GPU VA space
* @ show : the & drm_info_list ' s show callback
* @ data : driver private data
*
* Drivers should use this macro to define a & drm_info_list entry to provide a
* debugfs file for dumping the GPU VA space regions and mappings .
*
* For each DRM GPU VA space drivers should call drm_debugfs_gpuva_info ( ) from
* their @ show callback .
*/
#define DRM_DEBUGFS_GPUVA_INFO(show, data) {"gpuvas" , show, DRIVER_GEM_GPUVA, data}
/**
* 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;
};
/**
* struct drm_debugfs_info - debugfs info list entry
*
* This structure represents a debugfs file to be created by the drm
* core .
*/
struct drm_debugfs_info {
/** @name: File name */
const char *name;
/**
* @ show :
*
* Show callback . & seq_file - > private will be set to the & struct
* drm_debugfs_entry corresponding to the instance of this info
* on a given & struct drm_device .
*/
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_debugfs_entry - Per - device debugfs node structure
*
* This structure represents a debugfs file , as an instantiation of a & struct
* drm_debugfs_info on a & struct drm_device .
*/
struct drm_debugfs_entry {
/** @dev: &struct drm_device for this node. */
struct drm_device *dev;
/** @file: Template for this node. */
struct drm_debugfs_info file;
/** @list: Linked list of all device nodes. */
struct list_head list;
};
#if defined (CONFIG_DEBUG_FS)
void 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 dentry *root, struct drm_minor *minor);
void drm_debugfs_add_file(struct drm_device *dev, const char *name,
int (*show)(struct seq_file*, void *), void *data);
void drm_debugfs_add_files(struct drm_device *dev,
const struct drm_debugfs_info *files, int count);
int drm_debugfs_gpuva_info(struct seq_file *m,
struct drm_gpuvm *gpuvm);
void drm_debugfs_clients_add(struct drm_file *file);
void drm_debugfs_clients_remove(struct drm_file *file);
#else
static inline void drm_debugfs_create_files(const struct drm_info_list *files,
int count, struct dentry *root,
struct drm_minor *minor)
{}
static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
int count, struct dentry *root,
struct drm_minor *minor)
{
return 0 ;
}
static inline void drm_debugfs_add_file(struct drm_device *dev, const char *name,
int (*show)(struct seq_file*, void *),
void *data)
{}
static inline void drm_debugfs_add_files(struct drm_device *dev,
const struct drm_debugfs_info *files,
int count)
{}
static inline int drm_debugfs_gpuva_info(struct seq_file *m,
struct drm_gpuvm *gpuvm)
{
return 0 ;
}
static inline void drm_debugfs_clients_add(struct drm_file *file)
{
}
static inline void drm_debugfs_clients_remove(struct drm_file *file)
{
}
#endif
#endif /* _DRM_DEBUGFS_H_ */
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