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553cb3ed46
sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
181 lines
No EOL
5.1 KiB
C
Vendored
181 lines
No EOL
5.1 KiB
C
Vendored
/* $NetBSD: param.h,v 1.16 2021/05/31 14:38:57 simonb Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Matt Thomas of 3am Software Foundry.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _AARCH64_PARAM_H_
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#define _AARCH64_PARAM_H_
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#ifdef __aarch64__
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#ifdef _KERNEL_OPT
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#include "opt_cputypes.h"
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#include "opt_param.h"
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#endif
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/*
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* Machine dependent constants for all ARM processors
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*/
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/*
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* For KERNEL code:
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* MACHINE must be defined by the individual port. This is so that
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* uname returns the correct thing, etc.
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*
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* MACHINE_ARCH may be defined by individual ports as a temporary
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* measure while we're finishing the conversion to ELF.
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*
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* For non-KERNEL code:
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* If ELF, MACHINE and MACHINE_ARCH are forced to "arm/armeb".
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*/
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#if defined(_KERNEL)
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# ifndef MACHINE_ARCH /* XXX For now */
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# ifdef __AARCH64EB__
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# define _MACHINE_ARCH aarch64eb
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# define MACHINE_ARCH "aarch64eb"
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# define _MACHINE32_ARCH earmv7hfeb
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# define MACHINE32_ARCH "earmv7hfeb"
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# else
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# define _MACHINE_ARCH aarch64
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# define MACHINE_ARCH "aarch64"
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# define _MACHINE32_ARCH earmv7hf
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# define MACHINE32_ARCH "earmv7hf"
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# endif /* __AARCH64EB__ */
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# endif /* MACHINE_ARCH */
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#else
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# undef _MACHINE
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# undef MACHINE
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# undef _MACHINE_ARCH
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# undef MACHINE_ARCH
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# undef _MACHINE32_ARCH
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# undef MACHINE32_ARCH
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# define _MACHINE aarch64
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# define MACHINE "aarch64"
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# ifdef __AARCH64EB__
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# define _MACHINE_ARCH aarch64eb
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# define MACHINE_ARCH "aarch64eb"
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# define _MACHINE32_ARCH earmv7hfeb
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# define MACHINE32_ARCH "earmv7hfeb"
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# else
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# define _MACHINE_ARCH aarch64
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# define MACHINE_ARCH "aarch64"
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# define _MACHINE32_ARCH earmv7hf
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# define MACHINE32_ARCH "earmv7hf"
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# endif /* __AARCH64EB__ */
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#endif /* !_KERNEL */
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#define MID_MACHINE MID_AARCH64
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/* AARCH64-specific macro to align a stack pointer (downwards). */
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#define STACK_ALIGNBYTES (16 - 1)
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#define ALIGNBYTES32 (8 - 1)
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#define ALIGN32(p) \
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(((uintptr_t)(p) + ALIGNBYTES32) & ~ALIGNBYTES32)
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#define NKMEMPAGES_MIN_DEFAULT ((128UL * 1024 * 1024) >> PAGE_SHIFT)
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#define NKMEMPAGES_MAX_UNLIMITED 1
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#ifdef AARCH64_PAGE_SHIFT
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#if (1 << AARCH64_PAGE_SHIFT) & ~0x141000
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#error AARCH64_PAGE_SHIFT contains an unsupported value.
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#endif
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#define PGSHIFT AARCH64_PAGE_SHIFT
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#else
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#define PGSHIFT 12
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#endif
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#define NBPG (1 << PGSHIFT)
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#define PGOFSET (NBPG - 1)
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/*
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* Constants related to network buffer management.
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* MCLBYTES must be no larger than NBPG (the software page size), and
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* NBPG % MCLBYTES must be zero.
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*/
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#if PGSHIFT > 12
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#define MSIZE 256 /* size of an mbuf */
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#else
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#define MSIZE 512 /* size of an mbuf */
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#endif
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#ifndef MCLSHIFT
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#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
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/* 2K cluster can hold Ether frame */
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#endif /* MCLSHIFT */
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#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
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#ifndef NFS_RSIZE
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#define NFS_RSIZE 32768 /* Default NFS read data size */
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#endif
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#ifndef NFS_WSIZE
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#define NFS_WSIZE 32768 /* Default NFS write data size */
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#endif
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#ifndef MSGBUFSIZE
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#define MSGBUFSIZE 65536 /* default message buffer size */
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#endif
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#define COHERENCY_UNIT 128
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#define CACHE_LINE_SIZE 128
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#define MAXCPUS 256
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#ifdef _KERNEL
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#ifndef __HIDE_DELAY
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void delay(unsigned int);
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#define DELAY(x) delay(x)
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#endif
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/*
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* Compatibility /dev/zero mapping.
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*/
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#ifdef COMPAT_16
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#define COMPAT_ZERODEV(x) (x == makedev(0, _DEV_ZERO_oARM))
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#endif
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#endif /* _KERNEL */
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#define aarch64_btop(x) ((unsigned long)(x) >> PGSHIFT)
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#define aarch64_ptob(x) ((unsigned long)(x) << PGSHIFT)
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#define aarch64_trunc_page(x) ((unsigned long)(x) & ~PGSHIFT)
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#define aarch64_round_page(x) ((((unsigned long)(x)) + PGOFSET) & ~PGOFSET)
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/* compatibility for arm */
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#define arm_btop(x) aarch64_btop(x)
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#define arm_ptob(x) aarch64_ptob(x)
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#elif defined(__arm__)
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#include <arm/param.h>
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#endif /* __aarch64__/__arm__ */
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#endif /* _AARCH64_PARAM_H_ */ |