drm_debugfs.h

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/*
 * 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>
 
#define DRM_DEBUGFS_GPUVA_INFO(show, data) {"gpuvas", show, DRIVER_GEM_GPUVA, data}
 
struct drm_info_list {
    const char *name;
    int (*show)(struct seq_file*, void*);
    u32 driver_features;
    void *data;
};
 
struct drm_info_node {
    struct drm_minor *minor;
    const struct drm_info_list *info_ent;
    /* private: */
    struct list_head list;
    struct dentry *dent;
};
 
struct drm_debugfs_info {
    const char *name;
 
    int (*show)(struct seq_file*, void*);
 
    u32 driver_features;
 
    void *data;
};
 
struct drm_debugfs_entry {
    struct drm_device *dev;
 
    struct drm_debugfs_info file;
 
    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_ */