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Gerald Schaefer1f38d612006-09-20 15:59:26 +02001/*
2 * include/asm-s390/appldata.h
3 *
4 * Copyright (C) IBM Corp. 2006
5 *
6 * Author(s): Melissa Howland <melissah@us.ibm.com>
7 */
8
9#ifndef _ASM_S390_APPLDATA_H
10#define _ASM_S390_APPLDATA_H
11
12#include <asm/io.h>
13
14#ifndef CONFIG_64BIT
15
16#define APPLDATA_START_INTERVAL_REC 0x00 /* Function codes for */
17#define APPLDATA_STOP_REC 0x01 /* DIAG 0xDC */
18#define APPLDATA_GEN_EVENT_REC 0x02
19#define APPLDATA_START_CONFIG_REC 0x03
20
21/*
22 * Parameter list for DIAGNOSE X'DC'
23 */
24struct appldata_parameter_list {
25 u16 diag; /* The DIAGNOSE code X'00DC' */
26 u8 function; /* The function code for the DIAGNOSE */
27 u8 parlist_length; /* Length of the parameter list */
28 u32 product_id_addr; /* Address of the 16-byte product ID */
29 u16 reserved;
30 u16 buffer_length; /* Length of the application data buffer */
31 u32 buffer_addr; /* Address of the application data buffer */
32} __attribute__ ((packed));
33
34#else /* CONFIG_64BIT */
35
36#define APPLDATA_START_INTERVAL_REC 0x80
37#define APPLDATA_STOP_REC 0x81
38#define APPLDATA_GEN_EVENT_REC 0x82
39#define APPLDATA_START_CONFIG_REC 0x83
40
41/*
42 * Parameter list for DIAGNOSE X'DC'
43 */
44struct appldata_parameter_list {
45 u16 diag;
46 u8 function;
47 u8 parlist_length;
48 u32 unused01;
49 u16 reserved;
50 u16 buffer_length;
51 u32 unused02;
52 u64 product_id_addr;
53 u64 buffer_addr;
54} __attribute__ ((packed));
55
56#endif /* CONFIG_64BIT */
57
58struct appldata_product_id {
59 char prod_nr[7]; /* product number */
60 u16 prod_fn; /* product function */
61 u8 record_nr; /* record number */
62 u16 version_nr; /* version */
63 u16 release_nr; /* release */
64 u16 mod_lvl; /* modification level */
65} __attribute__ ((packed));
66
67static inline int appldata_asm(struct appldata_product_id *id,
68 unsigned short fn, void *buffer,
69 unsigned short length)
70{
71 struct appldata_parameter_list parm_list;
72 int ry;
73
74 if (!MACHINE_IS_VM)
75 return -ENOSYS;
76 parm_list.diag = 0xdc;
77 parm_list.function = fn;
78 parm_list.parlist_length = sizeof(parm_list);
79 parm_list.buffer_length = length;
80 parm_list.product_id_addr = (unsigned long) id;
81 parm_list.buffer_addr = virt_to_phys(buffer);
82 asm volatile(
83 "diag %1,%0,0xdc"
84 : "=d" (ry)
85 : "d" (&parm_list), "m" (parm_list), "m" (*id)
86 : "cc");
87 return ry;
88}
89
90#endif /* _ASM_S390_APPLDATA_H */