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/* $OpenBSD: param.h,v 1.37 2016/09/03 14:25:27 bluhm 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_PARAM_H_
#define _POWERPC_PARAM_H_
#ifdef _KERNEL
#ifndef _LOCORE
#include <machine/cpu.h>
#endif /* _LOCORE */
#endif
#define MACHINE_ARCH "powerpc"
#define _MACHINE_ARCH powerpc
#define MID_MACHINE MID_POWERPC
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define PAGE_MASK (PAGE_SIZE - 1)
#ifdef _KERNEL
#define NBPG PAGE_SIZE
#define PGSHIFT PAGE_SHIFT
#define PGOFSET PAGE_MASK
#define UPAGES 4 /* pages of u-area */
#define USPACE (UPAGES * PAGE_SIZE) /* total size of u-area */
#define USPACE_ALIGN 0 /* u-area alignment 0-none */
#define NMBCLUSTERS (4 * 1024) /* max cluster allocation */
/*
* Maximum size of the kernel malloc arena in PAGE_SIZE-sized
* logical pages.
*/
#define NKMEMPAGES_MAX_DEFAULT ((64 * 1024 * 1024) >> PAGE_SHIFT)
/*
* Fixed segments
*/
#define PPC_USER_SR 13
#define PPC_KERNEL_SR 14
#define PPC_KERNEL_SEG0 0xfffff0
#define PPC_KERNEL_SEGMENT (PPC_KERNEL_SEG0 + PPC_KERNEL_SR)
#define PPC_USER_ADDR ((void *)(PPC_USER_SR << ADDR_SR_SHIFT))
#endif /* _KERNEL */
#endif /* _POWERPC_PARAM_H_ */
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