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192.168.1.100 / T103 / 1f884588077ad3476b9c91cbb0ee9ee0332bbb68 / . / src / kernel / linux / v4.14 / arch / s390 / hypfs / hypfs.h
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rjw1f884582022-01-06 17:20:42 +0800[diff] [blame^]1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Hypervisor filesystem for Linux on s390.
4 *
5 * Copyright IBM Corp. 2006
6 * Author(s): Michael Holzheu <holzheu@de.ibm.com>
7 */
8
9#ifndef _HYPFS_H_
10#define _HYPFS_H_
11
12#include <linux/fs.h>
13#include <linux/types.h>
14#include <linux/debugfs.h>
15#include <linux/workqueue.h>
16#include <linux/kref.h>
17#include <asm/hypfs.h>
18
19#define REG_FILE_MODE 0440
20#define UPDATE_FILE_MODE 0220
21#define DIR_MODE 0550
22
23extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
24
25extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name,
26 __u64 value);
27
28extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name,
29 char *string);
30
31/* LPAR Hypervisor */
32extern int hypfs_diag_init(void);
33extern void hypfs_diag_exit(void);
34extern int hypfs_diag_create_files(struct dentry *root);
35
36/* VM Hypervisor */
37extern int hypfs_vm_init(void);
38extern void hypfs_vm_exit(void);
39extern int hypfs_vm_create_files(struct dentry *root);
40
41/* VM diagnose 0c */
42int hypfs_diag0c_init(void);
43void hypfs_diag0c_exit(void);
44
45/* Set Partition-Resource Parameter */
46int hypfs_sprp_init(void);
47void hypfs_sprp_exit(void);
48
49/* debugfs interface */
50struct hypfs_dbfs_file;
51
52struct hypfs_dbfs_data {
53 void *buf;
54 void *buf_free_ptr;
55 size_t size;
56 struct hypfs_dbfs_file *dbfs_file;
57};
58
59struct hypfs_dbfs_file {
60 const char *name;
61 int (*data_create)(void **data, void **data_free_ptr,
62 size_t *size);
63 void (*data_free)(const void *buf_free_ptr);
64 long (*unlocked_ioctl) (struct file *, unsigned int,
65 unsigned long);
66
67 /* Private data for hypfs_dbfs.c */
68 struct mutex lock;
69 struct dentry *dentry;
70};
71
72extern int hypfs_dbfs_init(void);
73extern void hypfs_dbfs_exit(void);
74extern int hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
75extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
76
77#endif /* _HYPFS_H_ */