arch/s390/include/uapi/asm/hypfs.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * Structures for hypfs interface
   4  *
   5  * Copyright IBM Corp. 2013
   6  *
   7  * Author: Martin Schwidefsky <schwidefsky@de.ibm.com>
   8  */
   9
  10 #ifndef _ASM_HYPFS_H
  11 #define _ASM_HYPFS_H
  12
  13 #include <linux/types.h>
  14
  15 /*
  16  * IOCTL for binary interface /sys/kernel/debug/diag_304
  17  */
  18 struct hypfs_diag304 {
  19         __u32   args[2];
  20         __u64   data;
  21         __u64   rc;
  22 } __attribute__((packed));
  23
  24 #define HYPFS_IOCTL_MAGIC 0x10
  25
  26 #define HYPFS_DIAG304 \
  27         _IOWR(HYPFS_IOCTL_MAGIC, 0x20, struct hypfs_diag304)
  28
  29 /*
  30  * Structures for binary interface /sys/kernel/debug/diag_0c
  31  */
  32 struct hypfs_diag0c_hdr {
  33         __u64   len;            /* Length of diag0c buffer without header */
  34         __u16   version;        /* Version of header */
  35         char    reserved1[6];   /* Reserved */
  36         char    tod_ext[16];    /* TOD clock for diag0c */
  37         __u64   count;          /* Number of entries (CPUs) in diag0c array */
  38         char    reserved2[24];  /* Reserved */
  39 };
  40
  41 struct hypfs_diag0c_entry {
  42         char    date[8];        /* MM/DD/YY in EBCDIC */
  43         char    time[8];        /* HH:MM:SS in EBCDIC */
  44         __u64   virtcpu;        /* Virtual time consumed by the virt CPU (us) */
  45         __u64   totalproc;      /* Total of virtual and simulation time (us) */
  46         __u32   cpu;            /* Linux logical CPU number */
  47         __u32   reserved;       /* Align to 8 byte */
  48 };
  49
  50 struct hypfs_diag0c_data {
  51         struct hypfs_diag0c_hdr         hdr;            /* 64 byte header */
  52         struct hypfs_diag0c_entry       entry[];        /* diag0c entry array */
  53 };
  54
  55 #endif