1 /* 2 * Copyright 1991-1998 by Open Software Foundation, Inc. 3 * All Rights Reserved 4 * 5 * Permission to use, copy, modify, and distribute this software and 6 * its documentation for any purpose and without fee is hereby granted, 7 * provided that the above copyright notice appears in all copies and 8 * that both the copyright notice and this permission notice appear in 9 * supporting documentation. 10 * 11 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 12 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 * FOR A PARTICULAR PURPOSE. 14 * 15 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 16 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 17 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 18 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 19 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 */ 21 /* 22 * MkLinux 23 */ 24 /* CMU_HIST */ 25 /* 26 * Revision 2.3 91/05/14 17:03:07 mrt 27 * Correcting copyright 28 * 29 * Revision 2.2 91/02/05 17:37:41 mrt 30 * Changed to new Mach copyright 31 * [91/02/01 17:22:49 mrt] 32 * 33 * Revision 2.1 89/08/03 16:06:55 rwd 34 * Created. 35 * 36 * Revision 2.4 89/02/25 18:42:35 gm0w 37 * Changes for cleanup. 38 * 39 * Revision 2.3 89/02/07 00:54:39 mwyoung 40 * Relocated from sys/vm_statistics.h 41 * 42 * Revision 2.2 89/01/30 22:08:54 rpd 43 * Made variable declarations use "extern". 44 * [89/01/25 15:26:30 rpd] 45 * 46 * 30-Sep-86 Avadis Tevanian (avie) at Carnegie-Mellon University 47 * Changed "reclaim" to "inactive." 48 * 49 * 22-Aug-86 Michael Young (mwyoung) at Carnegie-Mellon University 50 * Made vm_stat structure kernel-only. 51 * 52 * 22-May-86 Avadis Tevanian (avie) at Carnegie-Mellon University 53 * Defined vm_statistics_data_t as a real typedef so that 54 * MatchMaker can deal with it. 55 * 56 * 14-Feb-86 Avadis Tevanian (avie) at Carnegie-Mellon University 57 * Created. 58 * 59 */ 60 /* CMU_ENDHIST */ 61 /* 62 * Mach Operating System 63 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University 64 * All Rights Reserved. 65 * 66 * Permission to use, copy, modify and distribute this software and its 67 * documentation is hereby granted, provided that both the copyright 68 * notice and this permission notice appear in all copies of the 69 * software, derivative works or modified versions, and any portions 70 * thereof, and that both notices appear in supporting documentation. 71 * 72 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 73 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 74 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 75 * 76 * Carnegie Mellon requests users of this software to return to 77 * 78 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 79 * School of Computer Science 80 * Carnegie Mellon University 81 * Pittsburgh PA 15213-3890 82 * 83 * any improvements or extensions that they make and grant Carnegie Mellon 84 * the rights to redistribute these changes. 85 */ 86 /* 87 */ 88 /* 89 * File: mach/vm_statistics.h 90 * Author: Avadis Tevanian, Jr., Michael Wayne Young, David Golub 91 * 92 * Virtual memory statistics structure. 93 * 94 */ 95 96 #ifndef VM_STATISTICS_H_ 97 #define VM_STATISTICS_H_ 98 99 #include <sys/mach/vm_types.h> 100 101 struct vm_statistics { 102 integer_t free_count; /* # of pages free */ 103 integer_t active_count; /* # of pages active */ 104 integer_t inactive_count; /* # of pages inactive */ 105 integer_t wire_count; /* # of pages wired down */ 106 integer_t zero_fill_count; /* # of zero fill pages */ 107 integer_t reactivations; /* # of pages reactivated */ 108 integer_t pageins; /* # of pageins */ 109 integer_t pageouts; /* # of pageouts */ 110 integer_t faults; /* # of faults */ 111 integer_t cow_faults; /* # of copy-on-writes */ 112 integer_t lookups; /* object cache lookups */ 113 integer_t hits; /* object cache hits */ 114 115 integer_t purgeable_count; /* # of pages purgeable */ 116 integer_t purges; /* # of pages purged */ 117 118 }; 119 120 typedef struct vm_statistics *vm_statistics_t; 121 typedef struct vm_statistics vm_statistics_data_t; 122 123 struct vm_extmod_statistics { 124 int64_t task_for_pid_count; /* # of times task port was looked up */ 125 int64_t task_for_pid_caller_count; /* # of times this task called task_for_pid */ 126 int64_t thread_creation_count; /* # of threads created in task */ 127 int64_t thread_creation_caller_count; /* # of threads created by task */ 128 int64_t thread_set_state_count; /* # of register state sets in task */ 129 int64_t thread_set_state_caller_count; /* # of register state sets by task */ 130 } __attribute__((aligned(8))); 131 132 typedef struct vm_extmod_statistics *vm_extmod_statistics_t; 133 typedef struct vm_extmod_statistics vm_extmod_statistics_data_t; 134 135 typedef struct vm_purgeable_stat { 136 uint64_t count; 137 uint64_t size; 138 }vm_purgeable_stat_t; 139 140 struct vm_purgeable_info { 141 vm_purgeable_stat_t fifo_data[8]; 142 vm_purgeable_stat_t obsolete_data; 143 vm_purgeable_stat_t lifo_data[8]; 144 }; 145 146 typedef struct vm_purgeable_info *vm_purgeable_info_t; 147 148 149 /* 150 * VM allocation flags: 151 * 152 * VM_FLAGS_FIXED 153 * (really the absence of VM_FLAGS_ANYWHERE) 154 * Allocate new VM region at the specified virtual address, if possible. 155 * 156 * VM_FLAGS_ANYWHERE 157 * Allocate new VM region anywhere it would fit in the address space. 158 * 159 * VM_FLAGS_PURGABLE 160 * Create a purgable VM object for that new VM region. 161 * 162 * VM_FLAGS_NO_PMAP_CHECK 163 * (for DEBUG kernel config only, ignored for other configs) 164 * Do not check that there is no stale pmap mapping for the new VM region. 165 * This is useful for kernel memory allocations at bootstrap when building 166 * the initial kernel address space while some memory is already in use. 167 * 168 * VM_FLAGS_OVERWRITE 169 * The new VM region can replace existing VM regions if necessary 170 * (to be used in combination with VM_FLAGS_FIXED). 171 * 172 * VM_FLAGS_NO_CACHE 173 * Pages brought in to this VM region are placed on the speculative 174 * queue instead of the active queue. In other words, they are not 175 * cached so that they will be stolen first if memory runs low. 176 */ 177 #define VM_FLAGS_FIXED 0x0000 178 #define VM_FLAGS_ANYWHERE 0x0001 179 #define VM_FLAGS_PURGABLE 0x0002 180 #define VM_FLAGS_NO_CACHE 0x0010 181 #define VM_FLAGS_OVERWRITE 0x4000 /* delete any existing mappings first */ 182 /* 183 * VM_FLAGS_SUPERPAGE_MASK 184 * 3 bits that specify whether large pages should be used instead of 185 * base pages (!=0), as well as the requested page size. 186 */ 187 #define VM_FLAGS_SUPERPAGE_MASK 0x70000 /* bits 0x10000, 0x20000, 0x40000 */ 188 #define VM_FLAGS_RETURN_DATA_ADDR 0x100000 /* Return address of target data, rather than base of page */ 189 #define VM_FLAGS_ALIAS_MASK 0xFF000000 190 #define VM_GET_FLAGS_ALIAS(flags, alias) \ 191 (alias) = ((flags) & VM_FLAGS_ALIAS_MASK) >> 24 192 #define VM_SET_FLAGS_ALIAS(flags, alias) \ 193 (flags) = (((flags) & ~VM_FLAGS_ALIAS_MASK) | \ 194 (((alias) & ~VM_FLAGS_ALIAS_MASK) << 24)) 195 196 /* These are the flags that we accept from user-space */ 197 #define VM_FLAGS_USER_ALLOCATE (VM_FLAGS_FIXED | \ 198 VM_FLAGS_ANYWHERE | \ 199 VM_FLAGS_PURGABLE | \ 200 VM_FLAGS_NO_CACHE | \ 201 VM_FLAGS_OVERWRITE | \ 202 VM_FLAGS_SUPERPAGE_MASK | \ 203 VM_FLAGS_ALIAS_MASK) 204 #define VM_FLAGS_USER_MAP (VM_FLAGS_USER_ALLOCATE | \ 205 VM_FLAGS_RETURN_DATA_ADDR) 206 #define VM_FLAGS_USER_REMAP (VM_FLAGS_FIXED | \ 207 VM_FLAGS_ANYWHERE | \ 208 VM_FLAGS_OVERWRITE| \ 209 VM_FLAGS_RETURN_DATA_ADDR) 210 211 /* 212 * Each machine dependent implementation is expected to 213 * keep certain statistics. They may do this anyway they 214 * so choose, but are expected to return the statistics 215 * in the following structure. 216 */ 217 #if 0 218 struct pmap_statistics { 219 integer_t resident_count; /* # of pages mapped (total)*/ 220 integer_t wired_count; /* # of pages wired */ 221 }; 222 223 typedef struct pmap_statistics *pmap_statistics_t; 224 #endif 225 #endif /* VM_STATISTICS_H_ */ 226