/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * Author: Hanlu Li <[email protected]>
 *         Huacai Chen <[email protected]>
 *
 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 */
#ifndef _UAPI_ASM_SIGCONTEXT_H
#define _UAPI_ASM_SIGCONTEXT_H

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

/* FP context was used */
#define SC_USED_FP        (1 << 0)
/* Address error was due to memory load */
#define SC_ADDRERR_RD        (1 << 30)
/* Address error was due to memory store */
#define SC_ADDRERR_WR        (1 << 31)

struct sigcontext {
    __u64    sc_pc;
    __u64    sc_regs[32];
    __u32    sc_flags;
    __u64    sc_extcontext[0] __attribute__((__aligned__(16)));
};

#define CONTEXT_INFO_ALIGN    16
struct sctx_info {
    __u32    magic;
    __u32    size;
    __u64    padding;    /* padding to 16 bytes */
};

/* FPU context */
#define FPU_CTX_MAGIC        0x46505501
#define FPU_CTX_ALIGN        8
struct fpu_context {
    __u64    regs[32];
    __u64    fcc;
    __u32    fcsr;
};

/* LSX context */
#define LSX_CTX_MAGIC        0x53580001
#define LSX_CTX_ALIGN        16
struct lsx_context {
    __u64    regs[2*32];
    __u64    fcc;
    __u32    fcsr;
};

/* LASX context */
#define LASX_CTX_MAGIC        0x41535801
#define LASX_CTX_ALIGN        32
struct lasx_context {
    __u64    regs[4*32];
    __u64    fcc;
    __u32    fcsr;
};

#endif /* _UAPI_ASM_SIGCONTEXT_H */