xref: /openbmc/linux/arch/s390/include/uapi/asm/hypfs.h (revision 6f52b16c)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  * Structures for hypfs interface
4  *
5  * Copyright IBM Corp. 2013
6  *
7  * Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
8  */
9 
10 #ifndef _ASM_HYPFS_H
11 #define _ASM_HYPFS_H
12 
13 #include <linux/types.h>
14 
15 /*
16  * IOCTL for binary interface /sys/kernel/debug/diag_304
17  */
18 struct hypfs_diag304 {
19 	__u32	args[2];
20 	__u64	data;
21 	__u64	rc;
22 } __attribute__((packed));
23 
24 #define HYPFS_IOCTL_MAGIC 0x10
25 
26 #define HYPFS_DIAG304 \
27 	_IOWR(HYPFS_IOCTL_MAGIC, 0x20, struct hypfs_diag304)
28 
29 /*
30  * Structures for binary interface /sys/kernel/debug/diag_0c
31  */
32 struct hypfs_diag0c_hdr {
33 	__u64	len;		/* Length of diag0c buffer without header */
34 	__u16	version;	/* Version of header */
35 	char	reserved1[6];	/* Reserved */
36 	char	tod_ext[16];	/* TOD clock for diag0c */
37 	__u64	count;		/* Number of entries (CPUs) in diag0c array */
38 	char	reserved2[24];	/* Reserved */
39 };
40 
41 struct hypfs_diag0c_entry {
42 	char	date[8];	/* MM/DD/YY in EBCDIC */
43 	char	time[8];	/* HH:MM:SS in EBCDIC */
44 	__u64	virtcpu;	/* Virtual time consumed by the virt CPU (us) */
45 	__u64	totalproc;	/* Total of virtual and simulation time (us) */
46 	__u32	cpu;		/* Linux logical CPU number */
47 	__u32	reserved;	/* Align to 8 byte */
48 };
49 
50 struct hypfs_diag0c_data {
51 	struct hypfs_diag0c_hdr		hdr;		/* 64 byte header */
52 	struct hypfs_diag0c_entry	entry[];	/* diag0c entry array */
53 };
54 
55 #endif
56