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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp. 2006
*
* Author(s): Melissa Howland <melissah@us.ibm.com>
*/
#ifndef _ASM_S390_APPLDATA_H
#define _ASM_S390_APPLDATA_H
#include <linux/io.h>
#include <asm/diag.h>
#define APPLDATA_START_INTERVAL_REC 0x80
#define APPLDATA_STOP_REC 0x81
#define APPLDATA_GEN_EVENT_REC 0x82
#define APPLDATA_START_CONFIG_REC 0x83
/*
* Parameter list for DIAGNOSE X'DC'
*/
struct appldata_parameter_list {
u16 diag;
u8 function;
u8 parlist_length;
u32 unused01;
u16 reserved;
u16 buffer_length;
u32 unused02;
u64 product_id_addr;
u64 buffer_addr;
} __attribute__ ((packed));
struct appldata_product_id {
char prod_nr[7]; /* product number */
u16 prod_fn; /* product function */
u8 record_nr; /* record number */
u16 version_nr; /* version */
u16 release_nr; /* release */
u16 mod_lvl; /* modification level */
} __attribute__ ((packed));
static inline int appldata_asm(struct appldata_parameter_list *parm_list,
struct appldata_product_id *id,
unsigned short fn, void *buffer,
unsigned short length)
{
int ry;
if (!MACHINE_IS_VM)
return -EOPNOTSUPP;
parm_list->diag = 0xdc;
parm_list->function = fn;
parm_list->parlist_length = sizeof(*parm_list);
parm_list->buffer_length = length;
parm_list->product_id_addr = (unsigned long) id;
parm_list->buffer_addr = virt_to_phys(buffer);
diag_stat_inc(DIAG_STAT_X0DC);
asm volatile(
" diag %1,%0,0xdc"
: "=d" (ry)
: "d" (parm_list), "m" (*parm_list), "m" (*id)
: "cc");
return ry;
}
#endif /* _ASM_S390_APPLDATA_H */