mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-08-09 22:20:19 -04:00
94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/* $NetBSD: param.h,v 1.1 2014/09/03 19:34:26 matt 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 DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
|
|
#define DEV_BSIZE (1 << DEV_BSHIFT)
|
|
#define BLKDEV_IOSIZE 2048
|
|
|
|
#ifndef MAXPHYS
|
|
#define MAXPHYS 65536 /* max I/O transfer size */
|
|
#endif
|
|
|
|
#define NKMEMPAGES_MAX_DEFAULT (2048UL * 1024 * 1024)
|
|
#define NKMEMPAGES_MIN_DEFAULT (128UL * 1024 * 1024)
|
|
|
|
#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_ */
|