include/arch.h

   1 /*
   2  * (C) Copyright 2007-2011  Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
   3  *
   4  * This file is released under the GPLv2.  See the COPYING file for more
   5  * details.
   6  */
   7
   8 #ifndef __ARCH_H
   9 #define __ARCH_H
  10
  11 struct psw {
  12         u8 _zero0:1,
  13            r:1,                 /* PER Mask (R)                 */
  14            _zero1:3,
  15            t:1,                 /* DAT Mode (T)                 */
  16            io:1,                /* I/O Mask (IO)                */
  17            ex:1;                /* External Mask (EX)           */
  18
  19         u8 key:4,               /* Key                          */
  20            fmt:1,               /* 1 on 390, 0 on z             */
  21            m:1,                 /* Machine-Check Mask (M)       */
  22            w:1,                 /* Wait State (W)               */
  23            p:1;                 /* Problem State (P)            */
  24
  25         u8 as:2,                /* Address-Space Control (AS)   */
  26            cc:2,                /* Condition Code (CC)          */
  27            prog_mask:4;         /* Program Mask                 */
  28
  29         u8 _zero2:7,
  30            ea:1;                /* Extended Addressing (EA)     */
  31
  32         u32 ba:1,               /* Basic Addressing (BA)        */
  33             ptr31:31;
  34
  35         u64 ptr;
  36 };
  37
  38 #endif