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

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