linux/arch/sparc/include/uapi/asm/uctx.h
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   1/*
   2 * uctx.h: Sparc64 {set,get}context() register state layouts.
   3 *
   4 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
   5 */
   6
   7#ifndef __SPARC64_UCTX_H
   8#define __SPARC64_UCTX_H
   9
  10#define MC_TSTATE       0
  11#define MC_PC           1
  12#define MC_NPC          2
  13#define MC_Y            3
  14#define MC_G1           4
  15#define MC_G2           5
  16#define MC_G3           6
  17#define MC_G4           7
  18#define MC_G5           8
  19#define MC_G6           9
  20#define MC_G7           10
  21#define MC_O0           11
  22#define MC_O1           12
  23#define MC_O2           13
  24#define MC_O3           14
  25#define MC_O4           15
  26#define MC_O5           16
  27#define MC_O6           17
  28#define MC_O7           18
  29#define MC_NGREG        19
  30
  31typedef unsigned long mc_greg_t;
  32typedef mc_greg_t mc_gregset_t[MC_NGREG];
  33
  34#define MC_MAXFPQ       16
  35struct mc_fq {
  36        unsigned long   *mcfq_addr;
  37        unsigned int    mcfq_insn;
  38};
  39
  40struct mc_fpu {
  41        union {
  42                unsigned int    sregs[32];
  43                unsigned long   dregs[32];
  44                long double     qregs[16];
  45        } mcfpu_fregs;
  46        unsigned long   mcfpu_fsr;
  47        unsigned long   mcfpu_fprs;
  48        unsigned long   mcfpu_gsr;
  49        struct mc_fq    *mcfpu_fq;
  50        unsigned char   mcfpu_qcnt;
  51        unsigned char   mcfpu_qentsz;
  52        unsigned char   mcfpu_enab;
  53};
  54typedef struct mc_fpu mc_fpu_t;
  55
  56typedef struct {
  57        mc_gregset_t    mc_gregs;
  58        mc_greg_t       mc_fp;
  59        mc_greg_t       mc_i7;
  60        mc_fpu_t        mc_fpregs;
  61} mcontext_t;
  62
  63struct ucontext {
  64        struct ucontext         *uc_link;
  65        unsigned long           uc_flags;
  66        sigset_t                uc_sigmask;
  67        mcontext_t              uc_mcontext;
  68};
  69typedef struct ucontext ucontext_t;
  70
  71#endif /* __SPARC64_UCTX_H */
  72