mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
155 lines
4.7 KiB
C
155 lines
4.7 KiB
C
/*-
|
|
* Copyright (c) 2001 David E. O'Brien
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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 the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* from: @(#)param.h 5.8 (Berkeley) 6/28/91
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Machine dependent constants for PowerPC (32-bit only currently)
|
|
*/
|
|
|
|
#include <machine/pte.h>
|
|
|
|
/*
|
|
* Round p (pointer or byte index) up to a correctly-aligned value
|
|
* for all data types (int, long, ...). The result is unsigned int
|
|
* and must be cast to any desired pointer type.
|
|
*/
|
|
#ifndef _ALIGNBYTES
|
|
#define _ALIGNBYTES (sizeof(int) - 1)
|
|
#endif
|
|
#ifndef _ALIGN
|
|
#define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES)
|
|
#endif
|
|
|
|
#ifndef _MACHINE
|
|
#define _MACHIN "powerpc"
|
|
#endif
|
|
#ifndef _MACHINE_ARCH
|
|
#define _MACHINE_ARCH "powerpc"
|
|
#endif
|
|
|
|
#ifndef _NO_NAMESPACE_POLLUTION
|
|
|
|
#ifndef _MACHINE_PARAM_H_
|
|
#define _MACHINE_PARAM_H_
|
|
|
|
#ifndef MACHINE
|
|
#define MACHINE "powerpc"
|
|
#endif
|
|
#ifndef MACHINE_ARCH
|
|
#define MACHINE_ARCH "powerpc"
|
|
#endif
|
|
#define MID_MACHINE MID_POWERPC
|
|
|
|
#if !defined(LOCORE)
|
|
#include <machine/cpu.h>
|
|
#endif
|
|
|
|
/*
|
|
* OBJFORMAT_NAMES is a comma-separated list of the object formats
|
|
* that are supported on the architecture.
|
|
*/
|
|
#define OBJFORMAT_NAMES "elf"
|
|
#define OBJFORMAT_DEFAULT "elf"
|
|
|
|
#ifdef SMP
|
|
#define MAXCPU 2
|
|
#else
|
|
#define MAXCPU 1
|
|
#endif /* SMP */
|
|
|
|
#define ALIGNBYTES _ALIGNBYTES
|
|
#define ALIGN(p) _ALIGN(p)
|
|
|
|
#define PAGE_SHIFT 12
|
|
#define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */
|
|
#define PAGE_MASK (PAGE_SIZE - 1)
|
|
#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t)))
|
|
|
|
#define KERNBASE 0x100000 /* start of kernel virtual */
|
|
#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
|
|
|
|
#ifndef KSTACK_UPAGES
|
|
#define KSTACK_PAGES 4 /* includes pcb */
|
|
#define KSTACK_GUARD_PAGES 1
|
|
#endif
|
|
#define USPACE (KSTACK_PAGES * PAGE_SIZE) /* total size of pcb */
|
|
#define UAREA_PAGES 1 /* holds struct user WITHOUT PCB */
|
|
|
|
/*
|
|
* Mach derived conversion macros
|
|
*/
|
|
#define trunc_page(x) ((unsigned long)(x) & ~(PAGE_MASK))
|
|
#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
|
|
#define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK)
|
|
#define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
|
|
|
|
#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT)
|
|
#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT)
|
|
|
|
#define powerpc_btop(x) ((unsigned)(x) >> PAGE_SHIFT)
|
|
#define powerpc_ptob(x) ((unsigned)(x) << PAGE_SHIFT)
|
|
|
|
#define pgtok(x) ((x) * (PAGE_SIZE / 1024))
|
|
|
|
/* XXX: NetBSD defines that we're using for the moment */
|
|
#define USER_SR 13
|
|
#define KERNEL_SR 14
|
|
#define KERNEL_VSIDBITS 0xfffff
|
|
#define KERNEL_SEGMENT (0xfffff0 + KERNEL_SR)
|
|
#define EMPTY_SEGMENT 0xfffff0
|
|
#define USER_ADDR ((void *)(USER_SR << ADDR_SR_SHFT))
|
|
#define SEGMENT_LENGTH 0x10000000
|
|
#define SEGMENT_MASK 0xf0000000
|
|
|
|
#if !defined(NPMAPS)
|
|
#define NPMAPS 32768
|
|
#endif /* !defined(NPMAPS) */
|
|
|
|
#if !defined(MSGBUFSIZE)
|
|
#define MSGBUFSIZE PAGE_SIZE
|
|
#endif /* !defined(MSGBUFSIZE) */
|
|
|
|
/*
|
|
* XXX: Stop NetBSD msgbuf_paddr code from happening.
|
|
*/
|
|
#define MSGBUFADDR
|
|
|
|
#endif /* !_MACHINE_PARAM_H_ */
|
|
#endif /* !_NO_NAMESPACE_POLLUTION */
|