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 */
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
appldata_asm(struct appldata_parameter_list * parm_list,struct appldata_product_id * id,unsigned short fn,void * buffer,unsigned short length)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 */
69