freebsd-dev/sys/riscv/include/reg.h
Ruslan Bukin 8d7e7a98db Import RISC-V machine headers. This is a minimal set required to compile
kernel and userland.

Reviewed by:	andrew, imp, kib
Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
Differential Revision:	https://reviews.freebsd.org/D4554
2015-12-17 18:44:30 +00:00

73 lines
2.7 KiB
C

/*-
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_REG_H_
#define _MACHINE_REG_H_
struct reg {
uint64_t ra; /* return address */
uint64_t sp; /* stack pointer */
uint64_t gp; /* global pointer */
uint64_t tp; /* thread pointer */
uint64_t t[7]; /* temporaries */
uint64_t s[12]; /* saved registers */
uint64_t a[8]; /* function arguments */
uint64_t sepc; /* exception program counter */
uint64_t sstatus; /* status register */
};
struct fpreg {
int dummy;
};
struct dbreg {
int dummy;
};
#ifdef _KERNEL
/*
* XXX these interfaces are MI, so they should be declared in a MI place.
*/
int fill_regs(struct thread *, struct reg *);
int set_regs(struct thread *, struct reg *);
int fill_fpregs(struct thread *, struct fpreg *);
int set_fpregs(struct thread *, struct fpreg *);
int fill_dbregs(struct thread *, struct dbreg *);
int set_dbregs(struct thread *, struct dbreg *);
#endif
#endif /* !_MACHINE_REG_H_ */