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