/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1996, 1997, 1999 by Ralf Baechle
 * Copyright (C) 1999 Silicon Graphics, Inc.
 */
#ifndef _UAPI_ASM_SIGCONTEXT_H
#define _UAPI_ASM_SIGCONTEXT_H

#include <linux/types.h>
#include <asm/sgidefs.h>

/* scalar FP context was used */
#define USED_FP                 (1 << 0)

/* the value of Status.FR when context was saved */
#define USED_FR1                (1 << 1)

/* FR=1, but with odd singles in bits 63:32 of preceding even double */
#define USED_HYBRID_FPRS        (1 << 2)

/* extended context was used, see struct extcontext for details */
#define USED_EXTCONTEXT         (1 << 3)

#if _MIPS_SIM == _MIPS_SIM_ABI32

/*
 * Keep this struct definition in sync with the sigcontext fragment
 * in arch/mips/kernel/asm-offsets.c
 */
struct sigcontext {
        unsigned int            sc_regmask;     /* Unused */
        unsigned int            sc_status;      /* Unused */
        unsigned long long      sc_pc;
        unsigned long long      sc_regs[32];
        unsigned long long      sc_fpregs[32];
        unsigned int            sc_acx;         /* Was sc_ownedfp */
        unsigned int            sc_fpc_csr;
        unsigned int            sc_fpc_eir;     /* Unused */
        unsigned int            sc_used_math;
        unsigned int            sc_dsp;         /* dsp status, was sc_ssflags */
        unsigned long long      sc_mdhi;
        unsigned long long      sc_mdlo;
        unsigned long           sc_hi1;         /* Was sc_cause */
        unsigned long           sc_lo1;         /* Was sc_badvaddr */
        unsigned long           sc_hi2;         /* Was sc_sigset[4] */
        unsigned long           sc_lo2;
        unsigned long           sc_hi3;
        unsigned long           sc_lo3;
};

#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */

#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32

/*
 * Keep this struct definition in sync with the sigcontext fragment
 * in arch/mips/kernel/asm-offsets.c
 *
 * Warning: this structure illdefined with sc_badvaddr being just an unsigned
 * int so it was changed to unsigned long in 2.6.0-test1.  This may break
 * binary compatibility - no prisoners.
 * DSP ASE in 2.6.12-rc4.  Turn sc_mdhi and sc_mdlo into an array of four
 * entries, add sc_dsp and sc_reserved for padding.  No prisoners.
 */
struct sigcontext {
        __u64   sc_regs[32];
        __u64   sc_fpregs[32];
        __u64   sc_mdhi;
        __u64   sc_hi1;
        __u64   sc_hi2;
        __u64   sc_hi3;
        __u64   sc_mdlo;
        __u64   sc_lo1;
        __u64   sc_lo2;
        __u64   sc_lo3;
        __u64   sc_pc;
        __u32   sc_fpc_csr;
        __u32   sc_used_math;
        __u32   sc_dsp;
        __u32   sc_reserved;
};


#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */

#endif /* _UAPI_ASM_SIGCONTEXT_H */