arch/sparc/include/uapi/asm/psr.h

   1 /*
   2  * psr.h: This file holds the macros for masking off various parts of
   3  *        the processor status register on the Sparc. This is valid
   4  *        for Version 8. On the V9 this is renamed to the PSTATE
   5  *        register and its members are accessed as fields like
   6  *        PSTATE.PRIV for the current CPU privilege level.
   7  *
   8  * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
   9  */
  10
  11 #ifndef _UAPI__LINUX_SPARC_PSR_H
  12 #define _UAPI__LINUX_SPARC_PSR_H
  13
  14 /* The Sparc PSR fields are laid out as the following:
  15  *
  16  *  ------------------------------------------------------------------------
  17  *  | impl  | vers  | icc   | resv  | EC | EF | PIL  | S | PS | ET |  CWP  |
  18  *  | 31-28 | 27-24 | 23-20 | 19-14 | 13 | 12 | 11-8 | 7 | 6  | 5  |  4-0  |
  19  *  ------------------------------------------------------------------------
  20  */
  21 #define PSR_CWP     0x0000001f         /* current window pointer     */
  22 #define PSR_ET      0x00000020         /* enable traps field         */
  23 #define PSR_PS      0x00000040         /* previous privilege level   */
  24 #define PSR_S       0x00000080         /* current privilege level    */
  25 #define PSR_PIL     0x00000f00         /* processor interrupt level  */
  26 #define PSR_EF      0x00001000         /* enable floating point      */
  27 #define PSR_EC      0x00002000         /* enable co-processor        */
  28 #define PSR_SYSCALL 0x00004000         /* inside of a syscall        */
  29 #define PSR_LE      0x00008000         /* SuperSparcII little-endian */
  30 #define PSR_ICC     0x00f00000         /* integer condition codes    */
  31 #define PSR_C       0x00100000         /* carry bit                  */
  32 #define PSR_V       0x00200000         /* overflow bit               */
  33 #define PSR_Z       0x00400000         /* zero bit                   */
  34 #define PSR_N       0x00800000         /* negative bit               */
  35 #define PSR_VERS    0x0f000000         /* cpu-version field          */
  36 #define PSR_IMPL    0xf0000000         /* cpu-implementation field   */
  37
  38 #define PSR_VERS_SHIFT          24
  39 #define PSR_IMPL_SHIFT          28
  40 #define PSR_VERS_SHIFTED_MASK   0xf
  41 #define PSR_IMPL_SHIFTED_MASK   0xf
  42
  43 #define PSR_IMPL_TI             0x4
  44 #define PSR_IMPL_LEON           0xf
  45
  46
  47 #endif /* _UAPI__LINUX_SPARC_PSR_H */