/*
 * Copyright (C) 2012 Regents of the University of California
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 */

#ifndef _ASM_RISCV_PTRACE_H
#define _ASM_RISCV_PTRACE_H

#ifndef __ASSEMBLY__

#include <linux/types.h>

/*
 * User-mode register state for core dumps, ptrace, sigcontext
 *
 * This decouples struct pt_regs from the userspace ABI.
 * struct user_regs_struct must form a prefix of struct pt_regs.
 */
struct user_regs_struct {
	unsigned long pc;
	unsigned long ra;
	unsigned long sp;
	unsigned long gp;
	unsigned long tp;
	unsigned long t0;
	unsigned long t1;
	unsigned long t2;
	unsigned long s0;
	unsigned long s1;
	unsigned long a0;
	unsigned long a1;
	unsigned long a2;
	unsigned long a3;
	unsigned long a4;
	unsigned long a5;
	unsigned long a6;
	unsigned long a7;
	unsigned long s2;
	unsigned long s3;
	unsigned long s4;
	unsigned long s5;
	unsigned long s6;
	unsigned long s7;
	unsigned long s8;
	unsigned long s9;
	unsigned long s10;
	unsigned long s11;
	unsigned long t3;
	unsigned long t4;
	unsigned long t5;
	unsigned long t6;
};

struct __riscv_f_ext_state {
	__u32 f[32];
	__u32 fcsr;
};

struct __riscv_d_ext_state {
	__u64 f[32];
	__u32 fcsr;
};

struct __riscv_q_ext_state {
	__u64 f[64] __attribute__((aligned(16)));
	__u32 fcsr;
	/*
	 * Reserved for expansion of sigcontext structure.  Currently zeroed
	 * upon signal, and must be zero upon sigreturn.
	 */
	__u32 reserved[3];
};

union __riscv_fp_state {
	struct __riscv_f_ext_state f;
	struct __riscv_d_ext_state d;
	struct __riscv_q_ext_state q;
};

#endif /* __ASSEMBLY__ */

#endif /* _ASM_RISCV_PTRACE_H */