1/*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2001 David E. O'Brien 5 * Copyright (c) 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * William Jolitz. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * from: @(#)param.h 5.8 (Berkeley) 6/28/91 40 * $FreeBSD$ 41 */ 42 43#ifndef _POWERPC_INCLUDE_PARAM_H_ 44#define _POWERPC_INCLUDE_PARAM_H_ 45 46/* 47 * Machine dependent constants for PowerPC 48 */ 49 50#include <machine/_align.h> 51 52/* Needed to display interrupts on OFW PCI */ 53#define __PCI_REROUTE_INTERRUPT 54 55#ifndef MACHINE 56#define MACHINE "powerpc" 57#endif 58#ifndef MACHINE_ARCH 59#ifdef __powerpc64__ 60#define MACHINE_ARCH "powerpc64" 61#else 62#ifdef __SPE__ 63#define MACHINE_ARCH "powerpcspe" 64#else 65#define MACHINE_ARCH "powerpc" 66#endif 67#endif 68#endif 69#define MID_MACHINE MID_POWERPC 70#ifdef __powerpc64__ 71#ifndef MACHINE_ARCH32 72#define MACHINE_ARCH32 "powerpc" 73#endif 74#endif 75 76#if defined(SMP) || defined(KLD_MODULE) 77#ifndef MAXCPU 78#define MAXCPU 256 79#endif 80#else 81#define MAXCPU 1 82#endif /* SMP || KLD_MODULE */ 83 84#ifndef MAXMEMDOM 85#define MAXMEMDOM 1 86#endif 87 88#define ALIGNBYTES _ALIGNBYTES 89#define ALIGN(p) _ALIGN(p) 90/* 91 * ALIGNED_POINTER is a boolean macro that checks whether an address 92 * is valid to fetch data elements of type t from on this architecture. 93 * This does not reflect the optimal alignment, just the possibility 94 * (within reasonable limits). 95 */ 96#define ALIGNED_POINTER(p, t) ((((uintptr_t)(p)) & (sizeof (t) - 1)) == 0) 97 98/* 99 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 100 * architecture. It should be used with appropriate caution. 101 */ 102#define CACHE_LINE_SHIFT 7 103#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 104 105#define PAGE_SHIFT 12 106#define PAGE_SIZE (1L << PAGE_SHIFT) /* Page size */ 107#define PAGE_MASK (PAGE_SIZE - 1) 108#define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 109 110#define MAXPAGESIZES 1 /* maximum number of supported page sizes */ 111 112#ifndef KSTACK_PAGES 113#ifdef __powerpc64__ 114#define KSTACK_PAGES 8 /* includes pcb */ 115#else 116#define KSTACK_PAGES 4 /* includes pcb */ 117#endif 118#endif 119#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ 120#define USPACE (kstack_pages * PAGE_SIZE) /* total size of pcb */ 121 122/* 123 * Mach derived conversion macros 124 */ 125#define trunc_page(x) ((x) & ~(PAGE_MASK)) 126#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) 127 128#define atop(x) ((x) >> PAGE_SHIFT) 129#define ptoa(x) ((x) << PAGE_SHIFT) 130 131#define powerpc_btop(x) ((x) >> PAGE_SHIFT) 132#define powerpc_ptob(x) ((x) << PAGE_SHIFT) 133 134#define pgtok(x) ((x) * (PAGE_SIZE / 1024UL)) 135 136#define btoc(x) ((vm_offset_t)(((x)+PAGE_MASK)>>PAGE_SHIFT)) 137 138#endif /* !_POWERPC_INCLUDE_PARAM_H_ */ 139