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/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas <matt@3am-softwre.com> of Allegro Networks, Inc.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 THE FOUNDATION 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 _POWERPC_OEA_VMPARAM_H_
#define _POWERPC_OEA_VMPARAM_H_
#include <sys/queue.h>
/*
* Most of the definitions in this can be overridden by a machine-specific
* vmparam.h if required. Otherwise a port can just include this file
* get the right thing to happen.
*/
/*
* OEA processors have 4K pages. Override the PAGE_* definitions
* to be compile-time constants.
*/
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
#ifndef USRSTACK
#define USRSTACK VM_MAXUSER_ADDRESS
#endif
#ifndef USRSTACK32
#define USRSTACK32 VM_MAXUSER_ADDRESS32
#endif
#ifndef MAXTSIZ
#define MAXTSIZ (256*1024*1024) /* maximum text size */
#endif
#ifndef MAXDSIZ
#define MAXDSIZ (1024*1024*1024) /* maximum data size */
#endif
#ifndef MAXDSIZ32
#define MAXDSIZ32 (1024*1024*1024) /* maximum data size */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ (32*1024*1024) /* maximum stack size */
#endif
#ifndef MAXSSIZ32
#define MAXSSIZ32 (32*1024*1024) /* maximum stack size */
#endif
#ifndef DFLDSIZ
#define DFLDSIZ (256*1024*1024) /* default data size */
#endif
#ifndef DFLDSIZ32
#define DFLSSIZ32 (256*1024*1024)
#endif
#ifndef DFLSSIZ
#define DFLSSIZ (2*1024*1024) /* default stack size */
#endif
#ifndef DFLSSIZ32
#define DFLSSIZ32 (2*1024*1024) /* default stack size */
#endif
/*
* Default number of pages in the user raw I/O map.
*/
#ifndef USRIOSIZE
#define USRIOSIZE 1024
#endif
/*
* The number of seconds for a process to be blocked before being
* considered very swappable.
*/
#ifndef MAXSLP
#define MAXSLP 20
#endif
/*
* Segment handling stuff
*/
#define SEGMENT_LENGTH ( 0x10000000L)
#define SEGMENT_MASK (~0x0fffffffL)
/*
* Macros to manipulate VSIDs
*/
#if 0
/*
* Move the SR# to the top bits to make the lower bits entirely random
* so to give better PTE distribution.
*/
#define VSID__KEYSHFT (SR_VSID_WIDTH - SR_KEY_LEN)
#define VSID_SR_INCREMENT ((1L << VSID__KEYSHFT) - 1)
#define VSID__HASHMASK (VSID_SR_INCREMENT - 1)
#define VSID_MAKE(sr, hash) \
(( \
(((sr) << VSID__KEYSHFT) | ((hash) & VSID__HASMASK))
<< SR_VSID_SHFT) & SR_VSID)
#define VSID_TO_SR(vsid) \
(((vsid) & SR_VSID) >> (SR_VSID_SHFT + VSID__KEYSHFT))
#define VSID_TO_HASH(vsid) \
(((vsid) & SR_VSID) >> SR_VSID_SHFT) & VSID__HASHMASK)
#else
#define VSID__HASHSHFT (SR_KEY_LEN)
#define VSID_SR_INCREMENT (1L << 0)
#define VSID__KEYMASK ((1L << VSID__HASHSHFT) - 1)
#define VSID_MAKE(sr, hash) \
(( \
(((hash) << VSID__HASHSHFT) | ((sr) & VSID__KEYMASK)) \
<< SR_VSID_SHFT) & SR_VSID)
#define VSID_TO_SR(vsid) \
(((vsid) >> SR_VSID_SHFT) & VSID__KEYMASK)
#define VSID_TO_HASH(vsid) \
(((vsid) & SR_VSID) >> (SR_VSID_SHFT + VSID__HASHSHFT))
#endif /*0*/
#ifndef _LP64
/*
* Fixed segments
*/
#ifndef USER_SR
#define USER_SR 12
#endif
#ifndef KERNEL_SR
#define KERNEL_SR 13
#endif
#ifndef KERNEL2_SR
#define KERNEL2_SR 14
#endif
#define KERNEL2_SEGMENT VSID_MAKE(KERNEL2_SR, KERNEL_VSIDBITS)
#endif
#define KERNEL_VSIDBITS 0xfffff
#define PHYSMAP_VSIDBITS 0xffffe
#define PHYSMAPN_SEGMENT(s) VSID_MAKE(s, PHYSMAP_VSIDBITS)
#define KERNEL_SEGMENT VSID_MAKE(KERNEL_SR, KERNEL_VSIDBITS)
#define KERNELN_SEGMENT(s) VSID_MAKE(s, KERNEL_VSIDBITS)
/* XXXSL: need something here that will never be mapped */
#define EMPTY_SEGMENT VSID_MAKE(0, 0xffffe)
#define USER_ADDR ((void *)(USER_SR << ADDR_SR_SHFT))
/*
* Some system constants
*/
#ifndef NPMAPS
#define NPMAPS 32768 /* Number of pmaps in system */
#endif
#define VM_MIN_ADDRESS ((vaddr_t) 0)
#define VM_MAXUSER_ADDRESS32 ((vaddr_t) (uint32_t) ~0xfffL)
#ifdef _LP64
#define VM_MAXUSER_ADDRESS ((vaddr_t) 1UL << 48) /* 256TB */
#else
#define VM_MAXUSER_ADDRESS VM_MAXUSER_ADDRESS32
#endif
#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS
#ifdef _LP64
#define VM_MIN_KERNEL_ADDRESS ((vaddr_t) 0xffffffUL << 40) /* top 1TB */
#define VM_MAX_KERNEL_ADDRESS ((vaddr_t) -32768)
#else
#define VM_MIN_KERNEL_ADDRESS ((vaddr_t) (KERNEL_SR << ADDR_SR_SHFT))
#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH)
#endif
#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
#ifndef VM_PHYS_SIZE
#define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE)
#endif
#endif /* _POWERPC_OEA_VMPARAM_H_ */
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