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