/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * uctx.h: Sparc64 {set,get}context() register state layouts.
 *
 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 */

#ifndef __SPARC64_UCTX_H
#define __SPARC64_UCTX_H

#define MC_TSTATE       0
#define MC_PC           1
#define MC_NPC          2
#define MC_Y            3
#define MC_G1           4
#define MC_G2           5
#define MC_G3           6
#define MC_G4           7
#define MC_G5           8
#define MC_G6           9
#define MC_G7           10
#define MC_O0           11
#define MC_O1           12
#define MC_O2           13
#define MC_O3           14
#define MC_O4           15
#define MC_O5           16
#define MC_O6           17
#define MC_O7           18
#define MC_NGREG        19

typedef unsigned long mc_greg_t;
typedef mc_greg_t mc_gregset_t[MC_NGREG];

#define MC_MAXFPQ       16
struct mc_fq {
        unsigned long   *mcfq_addr;
        unsigned int    mcfq_insn;
};

struct mc_fpu {
        union {
                unsigned int    sregs[32];
                unsigned long   dregs[32];
                long double     qregs[16];
        } mcfpu_fregs;
        unsigned long   mcfpu_fsr;
        unsigned long   mcfpu_fprs;
        unsigned long   mcfpu_gsr;
        struct mc_fq    *mcfpu_fq;
        unsigned char   mcfpu_qcnt;
        unsigned char   mcfpu_qentsz;
        unsigned char   mcfpu_enab;
};
typedef struct mc_fpu mc_fpu_t;

typedef struct {
        mc_gregset_t    mc_gregs;
        mc_greg_t       mc_fp;
        mc_greg_t       mc_i7;
        mc_fpu_t        mc_fpregs;
} mcontext_t;

struct ucontext {
        struct ucontext         *uc_link;
        unsigned long           uc_flags;
        sigset_t                uc_sigmask;
        mcontext_t              uc_mcontext;
};
typedef struct ucontext ucontext_t;

#endif /* __SPARC64_UCTX_H */