/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2019 Intel Corporation
 */

#ifndef INTEL_GT_DEBUGFS_H
#define INTEL_GT_DEBUGFS_H

#include <linux/file.h>

struct intel_gt;

#define __GT_DEBUGFS_ATTRIBUTE_FOPS(__name)                             \
static const struct file_operations __name ## _fops = {                 \
        .owner = THIS_MODULE,                                           \
        .open = __name ## _open,                                        \
        .read = seq_read,                                               \
        .llseek = seq_lseek,                                            \
        .release = single_release,                                      \
}

#define DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(__name)                       \
static int __name ## _open(struct inode *inode, struct file *file)      \
{                                                                       \
        return single_open(file, __name ## _show, inode->i_private);    \
}                                                                       \
__GT_DEBUGFS_ATTRIBUTE_FOPS(__name)

#define DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE_WITH_SIZE(__name, __size_vf)          \
static int __name ## _open(struct inode *inode, struct file *file)              \
{                                                                               \
        return single_open_size(file, __name ## _show, inode->i_private,        \
                            __size_vf(inode->i_private));                       \
}                                                                               \
__GT_DEBUGFS_ATTRIBUTE_FOPS(__name)

void intel_gt_debugfs_register(struct intel_gt *gt);

struct intel_gt_debugfs_file {
        const char *name;
        const struct file_operations *fops;
        bool (*eval)(void *data);
};

void intel_gt_debugfs_register_files(struct dentry *root,
                                     const struct intel_gt_debugfs_file *files,
                                     unsigned long count, void *data);

/* functions that need to be accessed by the upper level non-gt interfaces */
int intel_gt_debugfs_reset_show(struct intel_gt *gt, u64 *val);
void intel_gt_debugfs_reset_store(struct intel_gt *gt, u64 val);

#endif /* INTEL_GT_DEBUGFS_H */