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