Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
24bbb1fa | 2 | /* |
24bbb1fa MH |
3 | * Hypervisor filesystem for Linux on s390. |
4 | * | |
a53c8fab | 5 | * Copyright IBM Corp. 2006 |
24bbb1fa MH |
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> | |
57b28f66 | 14 | #include <linux/debugfs.h> |
2fcb3686 MH |
15 | #include <linux/workqueue.h> |
16 | #include <linux/kref.h> | |
07be0382 | 17 | #include <asm/hypfs.h> |
24bbb1fa MH |
18 | |
19 | #define REG_FILE_MODE 0440 | |
20 | #define UPDATE_FILE_MODE 0220 | |
21 | #define DIR_MODE 0550 | |
22 | ||
a118cfdf | 23 | extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name); |
24bbb1fa | 24 | |
a118cfdf | 25 | extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name, |
24bbb1fa MH |
26 | __u64 value); |
27 | ||
a118cfdf | 28 | extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name, |
24bbb1fa MH |
29 | char *string); |
30 | ||
31cb4bd3 MH |
31 | /* LPAR Hypervisor */ |
32 | extern int hypfs_diag_init(void); | |
33 | extern void hypfs_diag_exit(void); | |
e334cf4f | 34 | extern int hypfs_diag_create_files(struct dentry *root); |
31cb4bd3 MH |
35 | |
36 | /* VM Hypervisor */ | |
37 | extern int hypfs_vm_init(void); | |
57b28f66 | 38 | extern void hypfs_vm_exit(void); |
f78e41e3 | 39 | extern int hypfs_vm_create_files(struct dentry *root); |
31cb4bd3 | 40 | |
34c0dad7 MH |
41 | /* VM diagnose 0c */ |
42 | int hypfs_diag0c_init(void); | |
43 | void hypfs_diag0c_exit(void); | |
44 | ||
07be0382 | 45 | /* Set Partition-Resource Parameter */ |
f36108c4 | 46 | void hypfs_sprp_init(void); |
07be0382 MS |
47 | void hypfs_sprp_exit(void); |
48 | ||
3325b4d8 HC |
49 | int __hypfs_fs_init(void); |
50 | ||
51 | static inline int hypfs_fs_init(void) | |
52 | { | |
53 | if (IS_ENABLED(CONFIG_S390_HYPFS_FS)) | |
54 | return __hypfs_fs_init(); | |
55 | return 0; | |
56 | } | |
57 | ||
2fcb3686 MH |
58 | /* debugfs interface */ |
59 | struct hypfs_dbfs_file; | |
60 | ||
61 | struct hypfs_dbfs_data { | |
62 | void *buf; | |
63 | void *buf_free_ptr; | |
64 | size_t size; | |
6eab04a8 | 65 | struct hypfs_dbfs_file *dbfs_file; |
2fcb3686 MH |
66 | }; |
67 | ||
68 | struct hypfs_dbfs_file { | |
69 | const char *name; | |
70 | int (*data_create)(void **data, void **data_free_ptr, | |
71 | size_t *size); | |
72 | void (*data_free)(const void *buf_free_ptr); | |
07be0382 MS |
73 | long (*unlocked_ioctl) (struct file *, unsigned int, |
74 | unsigned long); | |
2fcb3686 MH |
75 | |
76 | /* Private data for hypfs_dbfs.c */ | |
2fcb3686 MH |
77 | struct mutex lock; |
78 | struct dentry *dentry; | |
79 | }; | |
80 | ||
f36108c4 | 81 | extern void hypfs_dbfs_create_file(struct hypfs_dbfs_file *df); |
2fcb3686 MH |
82 | extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df); |
83 | ||
24bbb1fa | 84 | #endif /* _HYPFS_H_ */ |