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553cb3ed46
sys/param.h was manually adjusted to not define __NetBSD_Version__ since it will be defined by the compiler.
191 lines
No EOL
5.4 KiB
C
Vendored
191 lines
No EOL
5.4 KiB
C
Vendored
/* $NetBSD: vmparam.h,v 1.55 2022/08/20 23:48:50 riastradh Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)vmparam.h 5.9 (Berkeley) 5/12/91
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*/
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#ifndef _X86_64_VMPARAM_H_
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#define _X86_64_VMPARAM_H_
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#ifdef __x86_64__
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#include <sys/mutex.h>
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#ifdef _KERNEL_OPT
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#include "opt_xen.h"
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#endif
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/*
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* Machine dependent constants for 386.
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*/
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/*
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* Page size on the amd64 s not variable in the traditional sense.
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* We override the PAGE_* definitions to compile-time constants.
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*/
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#define PAGE_SHIFT 12
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (PAGE_SIZE - 1)
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/*
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* Default pager_map of 16MB is awfully small. There is plenty
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* of VA so use it.
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*/
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#define PAGER_MAP_DEFAULT_SIZE (512 * 1024 * 1024)
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/*
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* Defaults for Unified Buffer Cache parameters.
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*/
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#ifndef UBC_WINSHIFT
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#define UBC_WINSHIFT 16 /* 64kB */
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#endif
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#ifndef UBC_NWINS
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#define UBC_NWINS 4096 /* 256MB */
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#endif
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/*
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* USRSTACK is the top (end) of the user stack. Immediately above the
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* user stack resides the user structure, which is UPAGES long and contains
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* the kernel stack.
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*
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* Immediately after the user structure is the page table map, and then
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* kernel address space.
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*/
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#define USRSTACK VM_MAXUSER_ADDRESS
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#define USRSTACK32 VM_MAXUSER_ADDRESS32
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/*
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* Virtual memory related constants, all in bytes
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*/
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#define MAXTSIZ (8L*1024*1024*1024) /* max text size */
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#ifndef DFLDSIZ
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#define DFLDSIZ (256*1024*1024) /* initial data size limit */
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#endif
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#ifndef MAXDSIZ
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#define MAXDSIZ (8L*1024*1024*1024) /* max data size */
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#endif
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#ifndef DFLSSIZ
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#define DFLSSIZ (4*1024*1024) /* initial stack size limit */
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#endif
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#ifndef MAXSSIZ
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#define MAXSSIZ (128*1024*1024) /* max stack size */
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#endif
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/*
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* 32bit memory related constants.
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*/
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#ifndef DFLDSIZ32
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#define DFLDSIZ32 (256*1024*1024) /* initial data size limit */
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#endif
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#ifndef MAXDSIZ32
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#define MAXDSIZ32 (3U*1024*1024*1024) /* max data size */
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#endif
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#ifndef DFLSSIZ32
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#define DFLSSIZ32 (2*1024*1024) /* initial stack size limit */
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#endif
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#ifndef MAXSSIZ32
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#define MAXSSIZ32 (64*1024*1024) /* max stack size */
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#endif
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/*
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* Size of User Raw I/O map
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*/
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#define USRIOSIZE 300
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/* User map constants */
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#define VM_MIN_ADDRESS 0
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#define VM_MAXUSER_ADDRESS (0x00007f8000000000 - PAGE_SIZE)
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#define VM_MAXUSER_ADDRESS32 0xfffff000
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#define VM_MAX_ADDRESS 0x00007fbfdfeff000
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/*
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* Kernel map constants.
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* MIN = VA_SIGN_NEG(L4_SLOT_KERN * NBPD_L4)
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* MAX = MIN + NKL4_MAX_ENTRIES * NBPD_L4
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*/
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#ifndef XENPV
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#define VM_MIN_KERNEL_ADDRESS_DEFAULT 0xffff800000000000
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#define VM_MAX_KERNEL_ADDRESS_DEFAULT 0xffffa00000000000
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#else
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#define VM_MIN_KERNEL_ADDRESS_DEFAULT 0xffffa00000000000
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#define VM_MAX_KERNEL_ADDRESS_DEFAULT 0xffffc00000000000
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#endif
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#if defined(_KMEMUSER) || defined(_KERNEL)
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extern vaddr_t vm_min_kernel_address;
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extern vaddr_t vm_max_kernel_address;
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#define VM_MIN_KERNEL_ADDRESS vm_min_kernel_address
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#define VM_MAX_KERNEL_ADDRESS vm_max_kernel_address
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#endif
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#define PDP_SIZE 1
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/*
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* The address to which unspecified mapping requests default
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*/
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#ifdef _KERNEL_OPT
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#include "opt_uvm.h"
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#endif
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#define __USE_TOPDOWN_VM
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#define VM_DEFAULT_ADDRESS_BOTTOMUP(da, sz) \
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round_page((vaddr_t)(da) + (vsize_t)maxdmap)
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#define VM_DEFAULT_ADDRESS32_TOPDOWN(da, sz) \
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trunc_page(USRSTACK32 - MAXSSIZ32 - (sz) - user_stack_guard_size)
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#define VM_DEFAULT_ADDRESS32_BOTTOMUP(da, sz) \
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round_page((vaddr_t)(da) + (vsize_t)MAXDSIZ32)
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/* virtual sizes (bytes) for various kernel submaps */
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#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
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#define VM_PHYSSEG_MAX 64 /* 1 "hole" + 63 free lists */
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#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
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#define VM_NFREELIST 6
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#define VM_FREELIST_DEFAULT 0
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#define VM_FREELIST_FIRST1T 1
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#define VM_FREELIST_FIRST64G 2
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#define VM_FREELIST_FIRST4G 3
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#define VM_FREELIST_FIRST1G 4
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#define VM_FREELIST_FIRST16 5
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#else /* !__x86_64__ */
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#include <i386/vmparam.h>
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#endif /* __x86_64__ */
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#endif /* _X86_64_VMPARAM_H_ */ |