param.h (5141B) - Raw
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 */ 41 42 #ifndef _POWERPC_INCLUDE_PARAM_H_ 43 #define _POWERPC_INCLUDE_PARAM_H_ 44 45 /* 46 * Machine dependent constants for PowerPC 47 */ 48 49 #include <machine/_align.h> 50 51 /* Needed to display interrupts on OFW PCI */ 52 #define __PCI_REROUTE_INTERRUPT 53 54 #ifndef MACHINE 55 #define MACHINE "powerpc" 56 #endif 57 #ifndef MACHINE_ARCH 58 #ifdef __powerpc64__ 59 #if defined(__LITTLE_ENDIAN__) 60 #define MACHINE_ARCH "powerpc64le" 61 #else 62 #define MACHINE_ARCH "powerpc64" 63 #endif 64 #else 65 #ifdef __SPE__ 66 #define MACHINE_ARCH "powerpcspe" 67 #else 68 #define MACHINE_ARCH "powerpc" 69 #endif 70 #endif 71 #endif 72 #define MID_MACHINE MID_POWERPC 73 #ifdef __powerpc64__ 74 #ifndef MACHINE_ARCH32 75 #define MACHINE_ARCH32 "powerpc" 76 #endif 77 #endif 78 79 #ifdef SMP 80 #ifndef MAXCPU 81 #define MAXCPU 256 82 #endif 83 #else 84 #define MAXCPU 1 85 #endif 86 87 #ifndef MAXMEMDOM 88 #define MAXMEMDOM 8 89 #endif 90 91 #define ALIGNBYTES _ALIGNBYTES 92 #define ALIGN(p) _ALIGN(p) 93 /* 94 * ALIGNED_POINTER is a boolean macro that checks whether an address 95 * is valid to fetch data elements of type t from on this architecture. 96 * This does not reflect the optimal alignment, just the possibility 97 * (within reasonable limits). 98 */ 99 #define ALIGNED_POINTER(p, t) ((((uintptr_t)(p)) & (sizeof (t) - 1)) == 0) 100 101 /* 102 * CACHE_LINE_SIZE is the compile-time maximum cache line size for an 103 * architecture. It should be used with appropriate caution. 104 */ 105 #define CACHE_LINE_SHIFT 7 106 #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) 107 108 #define PAGE_SHIFT 12 109 #define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */ 110 #define PAGE_MASK (PAGE_SIZE - 1) 111 #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 112 #define NPDEPG (PAGE_SIZE/(sizeof (pt_entry_t))) 113 114 #define L1_PAGE_SIZE_SHIFT 39 115 #define L1_PAGE_SIZE (1UL<<L1_PAGE_SIZE_SHIFT) 116 #define L1_PAGE_MASK (L1_PAGE_SIZE-1) 117 118 #define L2_PAGE_SIZE_SHIFT 30 119 #define L2_PAGE_SIZE (1UL<<L2_PAGE_SIZE_SHIFT) 120 #define L2_PAGE_MASK (L2_PAGE_SIZE-1) 121 122 #define L3_PAGE_SIZE_SHIFT 21 123 #define L3_PAGE_SIZE (1UL<<L3_PAGE_SIZE_SHIFT) 124 #define L3_PAGE_MASK (L3_PAGE_SIZE-1) 125 126 #define MAXPAGESIZES 3 /* maximum number of supported page sizes */ 127 128 #define RELOCATABLE_KERNEL 1 /* kernel may relocate during startup */ 129 130 #ifndef KSTACK_PAGES 131 #ifdef __powerpc64__ 132 #define KSTACK_PAGES 12 /* includes pcb */ 133 #else 134 #define KSTACK_PAGES 4 /* includes pcb */ 135 #endif 136 #endif 137 #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ 138 #define USPACE (kstack_pages * PAGE_SIZE) /* total size of pcb */ 139 140 #define COPYFAULT 0x1 141 #define FUSUFAULT 0x2 142 143 /* 144 * Mach derived conversion macros 145 */ 146 #define trunc_page(x) ((x) & ~(PAGE_MASK)) 147 #define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) 148 #define trunc_2mpage(x) ((unsigned long)(x) & ~L3_PAGE_MASK) 149 #define round_2mpage(x) ((((unsigned long)(x)) + L3_PAGE_MASK) & ~L3_PAGE_MASK) 150 #define trunc_1gpage(x) ((unsigned long)(x) & ~L2_PAGE_MASK) 151 152 #define atop(x) ((x) >> PAGE_SHIFT) 153 #define ptoa(x) ((x) << PAGE_SHIFT) 154 155 #define powerpc_btop(x) ((x) >> PAGE_SHIFT) 156 #define powerpc_ptob(x) ((x) << PAGE_SHIFT) 157 158 #define pgtok(x) ((x) * (PAGE_SIZE / 1024UL)) 159 160 #define btoc(x) ((vm_offset_t)(((x)+PAGE_MASK)>>PAGE_SHIFT)) 161 162 #endif /* !_POWERPC_INCLUDE_PARAM_H_ */