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-rw-r--r--arch/s390/hypfs/hypfs.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/s390/hypfs/hypfs.h b/arch/s390/hypfs/hypfs.h
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+++ b/arch/s390/hypfs/hypfs.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Hypervisor filesystem for Linux on s390.
+ *
+ * Copyright IBM Corp. 2006
+ * Author(s): Michael Holzheu <holzheu@de.ibm.com>
+ */
+
+#ifndef _HYPFS_H_
+#define _HYPFS_H_
+
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/debugfs.h>
+#include <linux/workqueue.h>
+#include <linux/kref.h>
+#include <asm/hypfs.h>
+
+#define REG_FILE_MODE 0440
+#define UPDATE_FILE_MODE 0220
+#define DIR_MODE 0550
+
+extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
+
+extern struct dentry *hypfs_create_u64(struct dentry *dir, const char *name,
+ __u64 value);
+
+extern struct dentry *hypfs_create_str(struct dentry *dir, const char *name,
+ char *string);
+
+/* LPAR Hypervisor */
+extern int hypfs_diag_init(void);
+extern void hypfs_diag_exit(void);
+extern int hypfs_diag_create_files(struct dentry *root);
+
+/* VM Hypervisor */
+extern int hypfs_vm_init(void);
+extern void hypfs_vm_exit(void);
+extern int hypfs_vm_create_files(struct dentry *root);
+
+/* VM diagnose 0c */
+int hypfs_diag0c_init(void);
+void hypfs_diag0c_exit(void);
+
+/* Set Partition-Resource Parameter */
+void hypfs_sprp_init(void);
+void hypfs_sprp_exit(void);
+
+int __hypfs_fs_init(void);
+
+static inline int hypfs_fs_init(void)
+{
+ if (IS_ENABLED(CONFIG_S390_HYPFS_FS))
+ return __hypfs_fs_init();
+ return 0;
+}
+
+/* debugfs interface */
+struct hypfs_dbfs_file;
+
+struct hypfs_dbfs_data {
+ void *buf;
+ void *buf_free_ptr;
+ size_t size;
+ struct hypfs_dbfs_file *dbfs_file;
+};
+
+struct hypfs_dbfs_file {
+ const char *name;
+ int (*data_create)(void **data, void **data_free_ptr,
+ size_t *size);
+ void (*data_free)(const void *buf_free_ptr);
+ long (*unlocked_ioctl) (struct file *, unsigned int,
+ unsigned long);
+
+ /* Private data for hypfs_dbfs.c */
+ struct mutex lock;
+ struct dentry *dentry;
+};
+
+extern void hypfs_dbfs_exit(void);
+extern void hypfs_dbfs_create_file(struct hypfs_dbfs_file *df);
+extern void hypfs_dbfs_remove_file(struct hypfs_dbfs_file *df);
+
+#endif /* _HYPFS_H_ */