18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * Hypervisor filesystem for Linux on s390. 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright IBM Corp. 2006 68c2ecf20Sopenharmony_ci * Author(s): Michael Holzheu <holzheu@de.ibm.com> 78c2ecf20Sopenharmony_ci */ 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci#ifndef _HYPFS_H_ 108c2ecf20Sopenharmony_ci#define _HYPFS_H_ 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci#include <linux/fs.h> 138c2ecf20Sopenharmony_ci#include <linux/types.h> 148c2ecf20Sopenharmony_ci#include <linux/debugfs.h> 158c2ecf20Sopenharmony_ci#include <linux/workqueue.h> 168c2ecf20Sopenharmony_ci#include <linux/kref.h> 178c2ecf20Sopenharmony_ci#include <asm/hypfs.h> 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci#define REG_FILE_MODE 0440 208c2ecf20Sopenharmony_ci#define UPDATE_FILE_MODE 0220 218c2ecf20Sopenharmony_ci#define DIR_MODE 0550 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ciextern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name); 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ciextern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name, 268c2ecf20Sopenharmony_ci __u64 value); 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ciextern struct dentry *hypfs_create_str(struct dentry *dir, const char *name, 298c2ecf20Sopenharmony_ci char *string); 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci/* LPAR Hypervisor */ 328c2ecf20Sopenharmony_ciextern int hypfs_diag_init(void); 338c2ecf20Sopenharmony_ciextern void hypfs_diag_exit(void); 348c2ecf20Sopenharmony_ciextern int hypfs_diag_create_files(struct dentry *root); 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci/* VM Hypervisor */ 378c2ecf20Sopenharmony_ciextern int hypfs_vm_init(void); 388c2ecf20Sopenharmony_ciextern void hypfs_vm_exit(void); 398c2ecf20Sopenharmony_ciextern int hypfs_vm_create_files(struct dentry *root); 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci/* VM diagnose 0c */ 428c2ecf20Sopenharmony_ciint hypfs_diag0c_init(void); 438c2ecf20Sopenharmony_civoid hypfs_diag0c_exit(void); 448c2ecf20Sopenharmony_ci 458c2ecf20Sopenharmony_ci/* Set Partition-Resource Parameter */ 468c2ecf20Sopenharmony_civoid hypfs_sprp_init(void); 478c2ecf20Sopenharmony_civoid hypfs_sprp_exit(void); 488c2ecf20Sopenharmony_ci 498c2ecf20Sopenharmony_ci/* debugfs interface */ 508c2ecf20Sopenharmony_cistruct hypfs_dbfs_file; 518c2ecf20Sopenharmony_ci 528c2ecf20Sopenharmony_cistruct hypfs_dbfs_data { 538c2ecf20Sopenharmony_ci void *buf; 548c2ecf20Sopenharmony_ci void *buf_free_ptr; 558c2ecf20Sopenharmony_ci size_t size; 568c2ecf20Sopenharmony_ci struct hypfs_dbfs_file *dbfs_file; 578c2ecf20Sopenharmony_ci}; 588c2ecf20Sopenharmony_ci 598c2ecf20Sopenharmony_cistruct hypfs_dbfs_file { 608c2ecf20Sopenharmony_ci const char *name; 618c2ecf20Sopenharmony_ci int (*data_create)(void **data, void **data_free_ptr, 628c2ecf20Sopenharmony_ci size_t *size); 638c2ecf20Sopenharmony_ci void (*data_free)(const void *buf_free_ptr); 648c2ecf20Sopenharmony_ci long (*unlocked_ioctl) (struct file *, unsigned int, 658c2ecf20Sopenharmony_ci unsigned long); 668c2ecf20Sopenharmony_ci 678c2ecf20Sopenharmony_ci /* Private data for hypfs_dbfs.c */ 688c2ecf20Sopenharmony_ci struct mutex lock; 698c2ecf20Sopenharmony_ci struct dentry *dentry; 708c2ecf20Sopenharmony_ci}; 718c2ecf20Sopenharmony_ci 728c2ecf20Sopenharmony_ciextern void hypfs_dbfs_init(void); 738c2ecf20Sopenharmony_ciextern void hypfs_dbfs_exit(void); 748c2ecf20Sopenharmony_ciextern void hypfs_dbfs_create_file(struct hypfs_dbfs_file *df); 758c2ecf20Sopenharmony_ciextern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df); 768c2ecf20Sopenharmony_ci 778c2ecf20Sopenharmony_ci#endif /* _HYPFS_H_ */ 78