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appldata.h

/*
 * include/asm-s390/appldata.h
 *
 * Copyright (C) IBM Corp. 2006
 *
 * Author(s): Melissa Howland <melissah@us.ibm.com>
 */

#ifndef _ASM_S390_APPLDATA_H
#define _ASM_S390_APPLDATA_H

#include <asm/io.h>

#ifndef CONFIG_64BIT

#define APPLDATA_START_INTERVAL_REC 0x00  /* Function codes for */
#define APPLDATA_STOP_REC           0x01  /* DIAG 0xDC            */
#define APPLDATA_GEN_EVENT_REC            0x02
#define APPLDATA_START_CONFIG_REC   0x03

/*
 * Parameter list for DIAGNOSE X'DC'
 */
struct appldata_parameter_list {
      u16 diag;         /* The DIAGNOSE code X'00DC'        */
      u8  function;           /* The function code for the DIAGNOSE */
      u8  parlist_length;     /* Length of the parameter list       */
      u32 product_id_addr;    /* Address of the 16-byte product ID  */
      u16 reserved;
      u16 buffer_length;      /* Length of the application data buffer  */
      u32 buffer_addr;  /* Address of the application data buffer */
} __attribute__ ((packed));

#else /* CONFIG_64BIT */

#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));

#endif /* CONFIG_64BIT */

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_product_id *id,
                         unsigned short fn, void *buffer,
                         unsigned short length)
{
      struct appldata_parameter_list parm_list;
      int ry;

      if (!MACHINE_IS_VM)
            return -ENOSYS;
      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);
      asm volatile(
            "     diag  %1,%0,0xdc"
            : "=d" (ry)
            : "d" (&parm_list), "m" (parm_list), "m" (*id)
            : "cc");
      return ry;
}

#endif /* _ASM_S390_APPLDATA_H */

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