/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 *  S390 version
 *    Copyright IBM Corp. 1999, 2000
 */

#ifndef _ASM_S390_SIGCONTEXT_H
#define _ASM_S390_SIGCONTEXT_H

#include <linux/compiler.h>
#include <linux/types.h>

#define __NUM_GPRS              16
#define __NUM_FPRS              16
#define __NUM_ACRS              16
#define __NUM_VXRS              32
#define __NUM_VXRS_LOW          16
#define __NUM_VXRS_HIGH         16

/* Has to be at least _NSIG_WORDS from asm/signal.h */
#define _SIGCONTEXT_NSIG        64
#define _SIGCONTEXT_NSIG_BPW    64 
/* Size of stack frame allocated when calling signal handler. */
#define __SIGNAL_FRAMESIZE      160

#define _SIGCONTEXT_NSIG_WORDS  (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
#define _SIGMASK_COPY_SIZE      (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)

typedef struct 
{
        unsigned long mask;
        unsigned long addr;
} __attribute__ ((aligned(8))) _psw_t;

typedef struct
{
        _psw_t psw;
        unsigned long gprs[__NUM_GPRS];
        unsigned int  acrs[__NUM_ACRS];
} _s390_regs_common;

typedef struct
{
        unsigned int fpc;
        unsigned int pad;
        double   fprs[__NUM_FPRS];
} _s390_fp_regs;

typedef struct
{
        _s390_regs_common regs;
        _s390_fp_regs     fpregs;
} _sigregs;

typedef struct
{
        unsigned long long vxrs_low[__NUM_VXRS_LOW];
        __vector128 vxrs_high[__NUM_VXRS_HIGH];
        unsigned char __reserved[128];
} _sigregs_ext;

struct sigcontext
{
        unsigned long   oldmask[_SIGCONTEXT_NSIG_WORDS];
        _sigregs        __user *sregs;
};


#endif