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/* $NetBSD: param.h,v 1.24 2021/07/19 10:28:58 christos Exp $ */
/*
* Copyright (c) 1994,1995 Mark Brinicombe.
* All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the RiscBSD team.
* 4. The name "RiscBSD" nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RISCBSD ``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 RISCBSD 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 _ARM_PARAM_H_
#define _ARM_PARAM_H_
/*
* Machine dependent constants for all ARM processors
*/
/*
* For KERNEL code:
* MACHINE must be defined by the individual port. This is so that
* uname returns the correct thing, etc.
*
* MACHINE_ARCH may be defined by individual ports as a temporary
* measure while we're finishing the conversion to ELF.
*
* For non-KERNEL code:
* If ELF, MACHINE and MACHINE_ARCH are forced to "arm/armeb".
*/
#if defined(_KERNEL)
# ifndef MACHINE_ARCH /* XXX For now */
# ifndef __ARMEB__
# ifdef __ARM_EABI__
# define _MACHINE_ARCH earm
# define MACHINE_ARCH "earm"
# else
# define _MACHINE_ARCH arm
# define MACHINE_ARCH "arm"
# endif
# else
# ifdef __ARM_EABI__
# define _MACHINE_ARCH earmeb
# define MACHINE_ARCH "earmeb"
# else
# define _MACHINE_ARCH armeb
# define MACHINE_ARCH "armeb"
# endif
# endif /* __ARMEB__ */
# endif /* MACHINE_ARCH */
#else
# undef _MACHINE
# undef MACHINE
# undef _MACHINE_ARCH
# undef MACHINE_ARCH
# define _MACHINE arm
# define MACHINE "arm"
# ifndef __ARMEB__
# ifdef __ARM_EABI__
# ifdef __ARM_PCS_VFP
# ifdef _ARM_ARCH_7
# define _MACHINE_ARCH earmv7hf
# define MACHINE_ARCH "earmv7hf"
# elif defined(_ARM_ARCH_6)
# define _MACHINE_ARCH earmv6hf
# define MACHINE_ARCH "earmv6hf"
# else
# define _MACHINE_ARCH earmhf
# define MACHINE_ARCH "earmhf"
# endif
# else
# ifdef _ARM_ARCH_7
# define _MACHINE_ARCH earmv7
# define MACHINE_ARCH "earmv7"
# elif defined(_ARM_ARCH_6)
# define _MACHINE_ARCH earmv6
# define MACHINE_ARCH "earmv6"
# elif !defined(_ARM_ARCH_5T)
# define _MACHINE_ARCH earmv4
# define MACHINE_ARCH "earmv4"
# else
# define _MACHINE_ARCH earm
# define MACHINE_ARCH "earm"
# endif
# endif
# else
# define _MACHINE_ARCH arm
# define MACHINE_ARCH "arm"
# endif
# else
# ifdef __ARM_EABI__
# ifdef __ARM_PCS_VFP
# ifdef _ARM_ARCH_7
# define _MACHINE_ARCH earmv7hfeb
# define MACHINE_ARCH "earmv7hfeb"
# elif defined(_ARM_ARCH_6)
# define _MACHINE_ARCH earmv6hfeb
# define MACHINE_ARCH "earmv6hfeb"
# else
# define _MACHINE_ARCH earmhfeb
# define MACHINE_ARCH "earmhfeb"
# endif
# else
# ifdef _ARM_ARCH_7
# define _MACHINE_ARCH earmv7eb
# define MACHINE_ARCH "earmv7eb"
# elif defined(_ARM_ARCH_6)
# define _MACHINE_ARCH earmv6eb
# define MACHINE_ARCH "earmv6eb"
# elif !defined(_ARM_ARCH_5T)
# define _MACHINE_ARCH earmv4eb
# define MACHINE_ARCH "earmv4eb"
# else
# define _MACHINE_ARCH earmeb
# define MACHINE_ARCH "earmeb"
# endif
# endif
# else
# define _MACHINE_ARCH armeb
# define MACHINE_ARCH "armeb"
# endif
# endif /* __ARMEB__ */
#endif /* !_KERNEL */
#define MAXCPUS 8
#define MID_MACHINE MID_ARM6
/* ARM-specific macro to align a stack pointer (downwards). */
#define STACK_ALIGNBYTES (8 - 1)
#ifdef __ARM_EABI__
#define ALIGNBYTES32 3
#else
#define ALIGNBYTES32 7
#endif
/*
* Constants related to network buffer management.
* MCLBYTES must be no larger than NBPG (the software page size), and,
* on machines that exchange pages of input or output buffers with mbuf
* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
* of the hardware page size.
*/
#define MSIZE 256 /* 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 */
#ifndef NMBCLUSTERS_MAX
#define NMBCLUSTERS_MAX (0x4000000 / MCLBYTES) /* Limit to 64MB for clusters */
#endif
/*
* Compatibility /dev/zero mapping.
*/
#ifdef _KERNEL
#ifdef COMPAT_16
#define COMPAT_ZERODEV(x) (x == makedev(0, _DEV_ZERO_oARM))
#endif
#endif /* _KERNEL */
#endif /* _ARM_PARAM_H_ */
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