/*      $OpenBSD: vmparam.h,v 1.33 2024/01/30 16:43:22 deraadt Exp $    */
/*      $NetBSD: vmparam.h,v 1.1 1996/09/30 16:34:38 ws Exp $   */

/*-
 * 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.
 */

#ifndef MACHINE_VMPARAM_H
#define MACHINE_VMPARAM_H

#define USRSTACK        VM_MAXUSER_ADDRESS

#ifndef MAXTSIZ
#define MAXTSIZ         (128*1024*1024)         /* max text size */
#endif

#ifndef DFLDSIZ
#define DFLDSIZ         (64*1024*1024)          /* default data size */
#endif

#ifndef MAXDSIZ
#define MAXDSIZ         (2UL*1024*1024*1024)    /* max data size */
#endif

#ifndef BRKSIZ
#define BRKSIZ          MAXDSIZ                 /* heap gap size */
#endif

#ifndef DFLSSIZ
#define DFLSSIZ         (2*1024*1024)           /* default stack size */
#endif

#ifndef MAXSSIZ
#define MAXSSIZ         (32*1024*1024)          /* max stack size */
#endif

#define STACKGAP_RANDOM 256*1024

/*
 * Size of shared memory map
 */
#ifndef SHMMAXPGS
#define SHMMAXPGS       8192                    /* 32mb */
#endif

/*
 * Size of User Raw I/O map
 */
#define USRIOSIZE       1024

/*
 * Would like to have MAX addresses = 0, but this doesn't (currently) work
 */
#define VM_MIN_ADDRESS          ((vaddr_t)PAGE_SIZE)
#define VM_MAXUSER_ADDRESS      ((vaddr_t)0xfffff000)
#define VM_MAX_ADDRESS          VM_MAXUSER_ADDRESS
#define VM_MIN_KERNEL_ADDRESS   ((vaddr_t)(PPC_KERNEL_SR << ADDR_SR_SHIFT))

/* map PIE into approximately the first quarter of user va space */
#define VM_PIE_MIN_ADDR         PAGE_SIZE
#define VM_PIE_MAX_ADDR         0x40000000

#define VM_KERN_ADDRESS_SIZE  (PPC_SEGMENT_LENGTH - (32 * 1024 * 1024))
#define VM_MAX_KERNEL_ADDRESS   (VM_MIN_KERNEL_ADDRESS + VM_KERN_ADDRESS_SIZE)

#define VM_PHYS_SIZE            (USRIOSIZE * PAGE_SIZE)

#define VM_PHYSSEG_MAX  32      /* actually we could have this many segments */
#define VM_PHYSSEG_STRAT        VM_PSTRAT_BSEARCH
#define VM_PHYSSEG_NOADD        /* can't add RAM after vm_mem_init */

#endif