fe6a63b9d6
This allows executing static clang built with -O0. The value is configurable by a sysctl, so if one needs to clamp it down, they still can. Discussed with: nwhitehorn,emaste
216 lines
6.2 KiB
C
216 lines
6.2 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 SHAREDPAGE
|
|
|
|
#ifndef MAXTSIZ
|
|
#define MAXTSIZ (1*1024*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
|
|
|
|
#ifdef AIM
|
|
#define VM_MAXUSER_ADDRESS32 ((vm_offset_t)0xfffff000)
|
|
#else
|
|
#define VM_MAXUSER_ADDRESS32 ((vm_offset_t)0x7ffff000)
|
|
#endif
|
|
|
|
/*
|
|
* 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 (0xfffffffffffff000UL)
|
|
#define VM_MAX_ADDRESS (0xffffffffffffffffUL)
|
|
#else
|
|
#define VM_MIN_ADDRESS ((vm_offset_t)0)
|
|
#define VM_MAXUSER_ADDRESS VM_MAXUSER_ADDRESS32
|
|
#define VM_MAX_ADDRESS ((vm_offset_t)0xffffffff)
|
|
#endif
|
|
#define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE)
|
|
#else /* LOCORE */
|
|
#if !defined(__powerpc64__) && defined(BOOKE)
|
|
#define VM_MIN_ADDRESS 0
|
|
#define VM_MAXUSER_ADDRESS 0x7ffff000
|
|
#endif
|
|
#endif /* LOCORE */
|
|
|
|
#define FREEBSD32_SHAREDPAGE (VM_MAXUSER_ADDRESS32 - PAGE_SIZE)
|
|
#define FREEBSD32_USRSTACK FREEBSD32_SHAREDPAGE
|
|
|
|
#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 */
|
|
|
|
#define KERNBASE 0xc0000000 /* start of kernel virtual */
|
|
|
|
#define VM_MIN_KERNEL_ADDRESS KERNBASE
|
|
#define VM_MAX_KERNEL_ADDRESS 0xf8000000
|
|
#define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS
|
|
|
|
#endif /* AIM/E500 */
|
|
|
|
#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 on 32-bit systems,
|
|
* but may not be on 64-bit ones.
|
|
*/
|
|
#ifdef __powerpc64__
|
|
#define VM_PHYSSEG_SPARSE
|
|
#else
|
|
#define VM_PHYSSEG_DENSE
|
|
#endif
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* 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
|
|
|
|
/*
|
|
* How many physical pages per kmem arena virtual page.
|
|
*/
|
|
#ifndef VM_KMEM_SIZE_SCALE
|
|
#define VM_KMEM_SIZE_SCALE (3)
|
|
#endif
|
|
|
|
/*
|
|
* Optional floor (in bytes) on the size of the kmem arena.
|
|
*/
|
|
#ifndef VM_KMEM_SIZE_MIN
|
|
#define VM_KMEM_SIZE_MIN (12 * 1024 * 1024)
|
|
#endif
|
|
|
|
/*
|
|
* Optional ceiling (in bytes) on the size of the kmem arena: 40% of the
|
|
* usable KVA space.
|
|
*/
|
|
#ifndef VM_KMEM_SIZE_MAX
|
|
#define VM_KMEM_SIZE_MAX ((VM_MAX_SAFE_KERNEL_ADDRESS - \
|
|
VM_MIN_KERNEL_ADDRESS + 1) * 2 / 5)
|
|
#endif
|
|
|
|
#define ZERO_REGION_SIZE (64 * 1024) /* 64KB */
|
|
|
|
/*
|
|
* On 32-bit OEA, the only purpose for which sf_buf is used is to implement
|
|
* an opaque pointer required by the machine-independent parts of the kernel.
|
|
* That pointer references the vm_page that is "mapped" by the sf_buf. The
|
|
* actual mapping is provided by the direct virtual-to-physical mapping.
|
|
*
|
|
* On OEA64 and Book-E, we need to do something a little more complicated. Use
|
|
* the runtime-detected hw_direct_map to pick between the two cases. Our
|
|
* friends in vm_machdep.c will do the same to ensure nothing gets confused.
|
|
*/
|
|
#define SFBUF
|
|
#define SFBUF_NOMD
|
|
#define SFBUF_OPTIONAL_DIRECT_MAP hw_direct_map
|
|
#define SFBUF_PHYS_DMAP(x) (x)
|
|
|
|
#endif /* _MACHINE_VMPARAM_H_ */
|