Merge tag 'kvm-s390-next-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-microblaze.git] / arch / s390 / include / asm / appldata.h
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 <asm/diag.h>
12 #include <asm/io.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  */
22 struct 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
34 struct 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
44 static 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 = (unsigned long) 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" (parm_list), "m" (*parm_list), "m" (*id)
64                 : "cc");
65         return ry;
66 }
67
68 #endif /* _ASM_S390_APPLDATA_H */