/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * Author: Hanlu Li <lihanlu@loongson.cn>
 *         Huacai Chen <chenhuacai@loongson.cn>
 *
 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 */
#ifndef _UAPI_ASM_PTRACE_H
#define _UAPI_ASM_PTRACE_H

#include <linux/types.h>

/*
 * For PTRACE_{POKE,PEEK}USR. 0 - 31 are GPRs,
 * 32 is syscall's original ARG0, 33 is PC, 34 is BADVADDR.
 */
#define GPR_BASE        0
#define GPR_NUM         32
#define GPR_END         (GPR_BASE + GPR_NUM - 1)
#define ARG0            (GPR_END + 1)
#define PC              (GPR_END + 2)
#define BADVADDR        (GPR_END + 3)

#define NUM_FPU_REGS    32

struct user_pt_regs {
        /* Main processor registers. */
        unsigned long regs[32];

        /* Original syscall arg0. */
        unsigned long orig_a0;

        /* Special CSR registers. */
        unsigned long csr_era;
        unsigned long csr_badv;
        unsigned long reserved[10];
} __attribute__((aligned(8)));

struct user_fp_state {
        __u64 fpr[32];
        __u64 fcc;
        __u32 fcsr;
};

struct user_lsx_state {
        /* 32 registers, 128 bits width per register. */
        __u64 vregs[32*2];
};

struct user_lasx_state {
        /* 32 registers, 256 bits width per register. */
        __u64 vregs[32*4];
};

struct user_lbt_state {
        __u64 scr[4];
        __u32 eflags;
        __u32 ftop;
};

struct user_watch_state {
        __u64 dbg_info;
        struct {
#if __BITS_PER_LONG == 32
                __u32    addr;
                __u32    mask;
#else
                __u64    addr;
                __u64    mask;
#endif
                __u32    ctrl;
                __u32    pad;
        } dbg_regs[8];
};

struct user_watch_state_v2 {
        __u64 dbg_info;
        struct {
#if __BITS_PER_LONG == 32
                __u32    addr;
                __u32    mask;
#else
                __u64    addr;
                __u64    mask;
#endif
                __u32    ctrl;
                __u32    pad;
        } dbg_regs[14];
};

#define PTRACE_SYSEMU                   0x1f
#define PTRACE_SYSEMU_SINGLESTEP        0x20

#endif /* _UAPI_ASM_PTRACE_H */