1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright IBM Corp. 2006
4 *
5 * Author(s): Melissa Howland <melissah@us.ibm.com>
6 */
7
8#ifndef _ASM_S390_APPLDATA_H
9#define _ASM_S390_APPLDATA_H
10
11#include <linux/io.h>
12#include <asm/diag.h>
13
14#define APPLDATA_START_INTERVAL_REC	0x80
15#define APPLDATA_STOP_REC		0x81
16#define APPLDATA_GEN_EVENT_REC		0x82
17#define APPLDATA_START_CONFIG_REC	0x83
18
19/*
20 * Parameter list for DIAGNOSE X'DC'
21 */
22struct appldata_parameter_list {
23	u16 diag;
24	u8  function;
25	u8  parlist_length;
26	u32 unused01;
27	u16 reserved;
28	u16 buffer_length;
29	u32 unused02;
30	u64 product_id_addr;
31	u64 buffer_addr;
32} __attribute__ ((packed));
33
34struct appldata_product_id {
35	char prod_nr[7];	/* product number */
36	u16  prod_fn;		/* product function */
37	u8   record_nr; 	/* record number */
38	u16  version_nr;	/* version */
39	u16  release_nr;	/* release */
40	u16  mod_lvl;		/* modification level */
41} __attribute__ ((packed));
42
43
44static inline int appldata_asm(struct appldata_parameter_list *parm_list,
45			       struct appldata_product_id *id,
46			       unsigned short fn, void *buffer,
47			       unsigned short length)
48{
49	int ry;
50
51	if (!MACHINE_IS_VM)
52		return -EOPNOTSUPP;
53	parm_list->diag = 0xdc;
54	parm_list->function = fn;
55	parm_list->parlist_length = sizeof(*parm_list);
56	parm_list->buffer_length = length;
57	parm_list->product_id_addr = virt_to_phys(id);
58	parm_list->buffer_addr = virt_to_phys(buffer);
59	diag_stat_inc(DIAG_STAT_X0DC);
60	asm volatile(
61		"	diag	%1,%0,0xdc"
62		: "=d" (ry)
63		: "d" (virt_to_phys(parm_list)), "m" (*parm_list), "m" (*id)
64		: "cc");
65	return ry;
66}
67
68#endif /* _ASM_S390_APPLDATA_H */
69