/*      $NetBSD: vmparam.h,v 1.13 2026/06/22 12:34:20 rkujawa 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 _POWERPC_IBM4XX_VMPARAM_H_
#define _POWERPC_IBM4XX_VMPARAM_H_

/*
 * We use 16K pages on IBM4xx CPUs.  Override the PAGE_* definitions
 * to be compile-time constants.
 */
#define PAGE_SHIFT      14
#define PAGE_SIZE       (1 << PAGE_SHIFT)
#define PAGE_MASK       (PAGE_SIZE - 1)

#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         (2*1024*1024)           /* default stack size */
#endif

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

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

#if 1
/*
 * These definitions give you a 2GB kernel VA space.  The other set matches
 * the way other PPC ports lay out their 256MB kernel address space.
 */
#define VM_MIN_ADDRESS          ((vaddr_t)0)
#define VM_MAXUSER_ADDRESS      ((vaddr_t)0xffff0000-PAGE_SIZE)
#define VM_MAX_ADDRESS          VM_MAXUSER_ADDRESS
#define VM_MIN_KERNEL_ADDRESS   ((vaddr_t)0x80000000)
#if defined(PPC_IBM440)
/*
 * 440/460 boards need more room above the kernel for I/O
 */
#define VM_MAX_KERNEL_ADDRESS   ((vaddr_t)0xe0000000)
#else
#define VM_MAX_KERNEL_ADDRESS   ((vaddr_t)0xef000000)   /* before I/O periphs */
#endif
#else
/*
 * Would like to have MAX addresses = 0, but this doesn't (currently) work
 */
#define VM_MIN_ADDRESS          ((vaddr_t)0)
#define VM_MAXUSER_ADDRESS      ((vaddr_t)0x80000000-PAGE_SIZE)
#define VM_MAX_ADDRESS          VM_MAXUSER_ADDRESS
#define VM_MIN_KERNEL_ADDRESS   ((vaddr_t)(KERNEL_SR << ADDR_SR_SHFT))
#define VM_MAX_KERNEL_ADDRESS   (VM_MIN_KERNEL_ADDRESS + SEGMENT_LENGTH - 1)
#endif

#define VM_PHYS_SIZE            (USRIOSIZE * PAGE_SIZE)

#define __HAVE_PMAP_PHYSSEG

struct pmap_physseg {
        struct pv_entry *pvent;
        char *attrs;
};

#define VM_PHYSSEG_STRAT        VM_PSTRAT_BSEARCH

#endif /* _POWERPC_IBM4XX_VMPARAM_H_ */