/* $NetBSD: param.h,v 1.3 2022/10/14 07:13:58 skrll Exp $ */

/*-
 * Copyright (c) 2014 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas of 3am Software Foundry.
 *
 * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#ifndef _OR1K_PARAM_H_
#define _OR1K_PARAM_H_

/*
 * Machine dependent constants for all OpenRISC processors
 */

/*
 * For KERNEL code:
 *      MACHINE must be defined by the individual port.  This is so that
 *      uname returns the correct thing, etc.
 *
 * For non-KERNEL code:
 *      If ELF, MACHINE and MACHINE_ARCH are forced to "or1k/or1k".
 */

#define _MACHINE_ARCH   or1k
#define MACHINE_ARCH    "or1k"
#define _MACHINE        or1k
#define MACHINE         "or1k"

#define MID_MACHINE     MID_OR1K

/* OR1K-specific macro to align a stack pointer (downwards). */
#define STACK_ALIGNBYTES        (__BIGGEST_ALIGNMENT__ - 1)
#define ALIGNBYTES32    __BIGGEST_ALIGNMENT__

#define NKMEMPAGES_MAX_DEFAULT  ((2048UL * 1024 * 1024) >> PAGE_SHIFT)
#define NKMEMPAGES_MIN_DEFAULT  ((128UL * 1024 * 1024) >> PAGE_SHIFT)

#define PGSHIFT         13
#define NBPG            (1 << PGSHIFT)
#define PGOFSET         (NBPG - 1)

/*
 * Constants related to network buffer management.
 * MCLBYTES must be no larger than NBPG (the software page size), and
 * NBPG % MCLBYTES must be zero.
 */
#define MSIZE           512             /* size of an mbuf */

#ifndef MCLSHIFT
#define MCLSHIFT        11              /* convert bytes to m_buf clusters */
                                        /* 2K cluster can hold Ether frame */
#endif  /* MCLSHIFT */

#define MCLBYTES        (1 << MCLSHIFT) /* size of a m_buf cluster */

#ifdef _KERNEL
void delay(unsigned long);
#define DELAY(x)        delay(x)
#endif

#endif /* _OR1K_PARAM_H_ */