a3870a1826
now it uses a very dumb first-touch allocation policy. This will change in the future. - Each architecture indicates the maximum number of supported memory domains via a new VM_NDOMAIN parameter in <machine/vmparam.h>. - Each cpu now has a PCPU_GET(domain) member to indicate the memory domain a CPU belongs to. Domain values are dense and numbered from 0. - When a platform supports multiple domains, the default freelist (VM_FREELIST_DEFAULT) is split up into N freelists, one for each domain. The MD code is required to populate an array of mem_affinity structures. Each entry in the array defines a range of memory (start and end) and a domain for the range. Multiple entries may be present for a single domain. The list is terminated by an entry where all fields are zero. This array of structures is used to split up phys_avail[] regions that fall in VM_FREELIST_DEFAULT into per-domain freelists. - Each memory domain has a separate lookup-array of freelists that is used when fulfulling a physical memory allocation. Right now the per-domain freelists are listed in a round-robin order for each domain. In the future a table such as the ACPI SLIT table may be used to order the per-domain lookup lists based on the penalty for each memory domain relative to a specific domain. The lookup lists may be examined via a new vm.phys.lookup_lists sysctl. - The first-touch policy is implemented by using PCPU_GET(domain) to pick a lookup list when allocating memory. Reviewed by: alc
206 lines
5.6 KiB
C
206 lines
5.6 KiB
C
/*-
|
|
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
|
|
* Copyright (C) 1995, 1996 TooLs GmbH.
|
|
* 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 TooLs GmbH.
|
|
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
|
|
*
|
|
* $NetBSD: vmparam.h,v 1.11 2000/02/11 19:25:16 thorpej Exp $
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_VMPARAM_H_
|
|
#define _MACHINE_VMPARAM_H_
|
|
|
|
#define USRSTACK VM_MAXUSER_ADDRESS
|
|
|
|
#ifndef MAXTSIZ
|
|
#define MAXTSIZ (64*1024*1024) /* max text size */
|
|
#endif
|
|
|
|
#ifndef DFLDSIZ
|
|
#define DFLDSIZ (128*1024*1024) /* default data size */
|
|
#endif
|
|
|
|
#ifndef MAXDSIZ
|
|
#define MAXDSIZ (1*1024*1024*1024) /* max data size */
|
|
#endif
|
|
|
|
#ifndef DFLSSIZ
|
|
#define DFLSSIZ (8*1024*1024) /* default stack size */
|
|
#endif
|
|
|
|
#ifndef MAXSSIZ
|
|
#define MAXSSIZ (64*1024*1024) /* max stack size */
|
|
#endif
|
|
|
|
/*
|
|
* The time for a process to be blocked before being very swappable.
|
|
* This is a number of seconds which the system takes as being a non-trivial
|
|
* amount of real time. You probably shouldn't change this;
|
|
* it is used in subtle ways (fractions and multiples of it are, that is, like
|
|
* half of a ``long time'', almost a long time, etc.)
|
|
* It is related to human patience and other factors which don't really
|
|
* change over time.
|
|
*/
|
|
#define MAXSLP 20
|
|
|
|
/*
|
|
* Would like to have MAX addresses = 0, but this doesn't (currently) work
|
|
*/
|
|
#if !defined(LOCORE)
|
|
#ifdef __powerpc64__
|
|
#define VM_MIN_ADDRESS (0x0000000000000000UL)
|
|
#define VM_MAXUSER_ADDRESS (0x7ffffffffffff000UL)
|
|
#define VM_MAX_ADDRESS (0xffffffffffffffffUL)
|
|
#else
|
|
#define VM_MIN_ADDRESS ((vm_offset_t)0)
|
|
#define VM_MAXUSER_ADDRESS ((vm_offset_t)0x7ffff000)
|
|
#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
|
|
#endif
|
|
#else /* LOCORE */
|
|
#ifndef __powerpc64__
|
|
#define VM_MIN_ADDRESS 0
|
|
#define VM_MAXUSER_ADDRESS 0x7ffff000
|
|
#endif
|
|
#endif /* LOCORE */
|
|
|
|
#define FREEBSD32_USRSTACK 0x7ffff000
|
|
|
|
|
|
#ifdef AIM
|
|
#define KERNBASE 0x00100000UL /* start of kernel virtual */
|
|
|
|
#ifdef __powerpc64__
|
|
#define VM_MIN_KERNEL_ADDRESS 0xc000000000000000UL
|
|
#define VM_MAX_KERNEL_ADDRESS 0xc0000001c7ffffffUL
|
|
#define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS
|
|
#else
|
|
#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)KERNEL_SR << ADDR_SR_SHFT)
|
|
#define VM_MAX_SAFE_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH -1)
|
|
#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 3*SEGMENT_LENGTH - 1)
|
|
#endif
|
|
|
|
/*
|
|
* Use the direct-mapped BAT registers for UMA small allocs. This
|
|
* takes pressure off the small amount of available KVA.
|
|
*/
|
|
#define UMA_MD_SMALL_ALLOC
|
|
|
|
#else /* Book-E */
|
|
|
|
/*
|
|
* Kernel CCSRBAR location. We make this the reset location.
|
|
*/
|
|
#define CCSRBAR_VA 0xfef00000
|
|
#define CCSRBAR_SIZE 0x00100000
|
|
|
|
#define KERNBASE 0xc0000000 /* start of kernel virtual */
|
|
|
|
#define VM_MIN_KERNEL_ADDRESS KERNBASE
|
|
#define VM_MAX_KERNEL_ADDRESS 0xf8000000
|
|
|
|
#endif /* AIM/E500 */
|
|
|
|
/* XXX max. amount of KVM to be used by buffers. */
|
|
#ifndef VM_MAX_KERNEL_BUF
|
|
#define VM_MAX_KERNEL_BUF (SEGMENT_LENGTH * 7 / 10)
|
|
#endif
|
|
|
|
#if !defined(LOCORE)
|
|
struct pmap_physseg {
|
|
struct pv_entry *pvent;
|
|
char *attrs;
|
|
};
|
|
#endif
|
|
|
|
#define VM_PHYSSEG_MAX 16 /* 1? */
|
|
|
|
/*
|
|
* The physical address space is densely populated.
|
|
*/
|
|
#define VM_PHYSSEG_DENSE
|
|
|
|
/*
|
|
* Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool
|
|
* from which physical pages are allocated and VM_FREEPOOL_DIRECT is
|
|
* the pool from which physical pages for small UMA objects are
|
|
* allocated.
|
|
*/
|
|
#define VM_NFREEPOOL 3
|
|
#define VM_FREEPOOL_CACHE 2
|
|
#define VM_FREEPOOL_DEFAULT 0
|
|
#define VM_FREEPOOL_DIRECT 1
|
|
|
|
/*
|
|
* Create one free page list.
|
|
*/
|
|
#define VM_NFREELIST 1
|
|
#define VM_FREELIST_DEFAULT 0
|
|
|
|
/*
|
|
* The largest allocation size is 4MB.
|
|
*/
|
|
#define VM_NFREEORDER 11
|
|
|
|
/*
|
|
* Only one memory domain.
|
|
*/
|
|
#ifndef VM_NDOMAIN
|
|
#define VM_NDOMAIN 1
|
|
#endif
|
|
|
|
/*
|
|
* Disable superpage reservations.
|
|
*/
|
|
#ifndef VM_NRESERVLEVEL
|
|
#define VM_NRESERVLEVEL 0
|
|
#endif
|
|
|
|
#ifndef VM_INITIAL_PAGEIN
|
|
#define VM_INITIAL_PAGEIN 16
|
|
#endif
|
|
|
|
#ifndef SGROWSIZ
|
|
#define SGROWSIZ (128UL*1024) /* amount to grow stack */
|
|
#endif
|
|
|
|
#ifndef VM_KMEM_SIZE
|
|
#define VM_KMEM_SIZE (12 * 1024 * 1024)
|
|
#endif
|
|
|
|
#ifdef __powerpc64__
|
|
#ifndef VM_KMEM_SIZE_SCALE
|
|
#define VM_KMEM_SIZE_SCALE (3)
|
|
#endif
|
|
|
|
#ifndef VM_KMEM_SIZE_MAX
|
|
#define VM_KMEM_SIZE_MAX 0x1c0000000 /* 7 GB */
|
|
#endif
|
|
#endif
|
|
|
|
#endif /* _MACHINE_VMPARAM_H_ */
|