/* 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_PTRACE_H
#define _UAPI_ASM_PTRACE_H

#include <linux/types.h>

#ifndef __KERNEL__
#include <stdint.h>
#endif

/*
 * 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 {
    uint64_t fpr[32];
    uint64_t fcc;
    uint32_t fcsr;
};

struct user_lsx_state {
    /* 32 registers, 128 bits width per register. */
    uint64_t vregs[32*2];
};

struct user_lasx_state {
    /* 32 registers, 256 bits width per register. */
    uint64_t vregs[32*4];
};

struct user_watch_state {
    uint64_t dbg_info;
    struct {
        uint64_t    addr;
        uint64_t    mask;
        uint32_t    ctrl;
        uint32_t    pad;
    } dbg_regs[8];
};

#define PTRACE_SYSEMU            0x1f
#define PTRACE_SYSEMU_SINGLESTEP    0x20

#endif /* _UAPI_ASM_PTRACE_H */