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1c79356b 1/*
2d21ac55 2 * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
5d5c5d0d 3 *
2d21ac55 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b 5 *
2d21ac55
A		 6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
8f6c56a5 14 *
2d21ac55
A		 15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5
A		 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55
A		 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
8f6c56a5 25 *
2d21ac55 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b
A		 27 */
28/*-
29 * Copyright (c) 1982, 1986, 1989, 1993
30 * The Regents of the University of California. All rights reserved.
31 *
32 * This code is derived from software contributed to Berkeley by
33 * Mike Karels at Berkeley Software Design, Inc.
34 *
35 * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
36 * project, to make these variables more userfriendly.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 *
66 * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94
67 */
68
69#include <sys/param.h>
70#include <sys/kernel.h>
71#include <sys/systm.h>
72#include <sys/sysctl.h>
91447636 73#include <sys/proc_internal.h>
1c79356b
A		 74#include <sys/unistd.h>
75
76#if defined(SMP)
77#include <machine/smp.h>
78#endif
79
43866e37
A		 80#include <sys/param.h> /* XXX prune includes */
81#include <sys/systm.h>
82#include <sys/kernel.h>
83#include <sys/malloc.h>
84#include <sys/proc.h>
91447636 85#include <sys/file_internal.h>
43866e37
A		 86#include <sys/vnode.h>
87#include <sys/unistd.h>
43866e37
A		 88#include <sys/ioctl.h>
89#include <sys/namei.h>
90#include <sys/tty.h>
91#include <sys/disklabel.h>
92#include <sys/vm.h>
93#include <sys/sysctl.h>
94#include <sys/user.h>
95#include <mach/machine.h>
96#include <mach/mach_types.h>
97#include <mach/vm_param.h>
98#include <kern/task.h>
99#include <vm/vm_kern.h>
39236c6e 100#include <vm/vm_map.h>
3e170ce0 101#include <vm/vm_protos.h>
43866e37 102#include <mach/host_info.h>
0c530ab8 103#include <kern/pms.h>
43866e37
A		 104
105extern vm_map_t bsd_pageable_map;
106
91447636 107#include <sys/mount_internal.h>
43866e37
A		 108#include <sys/kdebug.h>
109
110#include <IOKit/IOPlatformExpert.h>
111#include <pexpert/pexpert.h>
112
113#include <machine/machine_routines.h>
114#include <machine/cpu_capabilities.h>
115
2d21ac55
A		 116#include <mach/mach_host.h> /* for host_info() */
117
b0d623f7
A		 118#if defined(__i386__) || defined(__x86_64__)
119#include <i386/cpuid.h> /* for cpuid_info() */
0c530ab8
A		 120#endif
121
5ba3f43e
A		 122#if defined(__arm__) || defined(__arm64__)
123#include <arm/cpuid.h> /* for cpuid_info() & cache_info() */
124#endif
2d21ac55
A		 125
126
0c530ab8
A		 127#ifndef MAX
128#define MAX(a,b) (a >= b ? a : b)
129#endif
130
2d21ac55
A		 131/* XXX This should be in a BSD accessible Mach header, but isn't. */
132extern unsigned int vm_page_wire_count;
133
134static int cputype, cpusubtype, cputhreadtype, cpufamily, cpu64bit;
135static uint64_t cacheconfig[10], cachesize[10];
136static int packages;
43866e37 137
2d21ac55 138SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 139 "Sysctl internal magic");
2d21ac55 140SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 141 "High kernel, proc, limits &c");
2d21ac55 142SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 143 "Virtual memory");
2d21ac55 144SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 145 "File system");
2d21ac55 146SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 147 "Network, (see socket.h)");
2d21ac55 148SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 149 "Debugging");
2d21ac55 150SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 151 "hardware");
2d21ac55 152SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b 153 "machine dependent");
2d21ac55 154SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
1c79356b
A		 155 "user-level");
156
43866e37
A		 157#define SYSCTL_RETURN(r, x) SYSCTL_OUT(r, &x, sizeof(x))
158
159/******************************************************************************
160 * hw.* MIB
161 */
162
163#define CTLHW_RETQUAD (1 << 31)
91447636
A		 164#define CTLHW_LOCAL (1 << 30)
165
166#define HW_LOCAL_CPUTHREADTYPE (1 | CTLHW_LOCAL)
167#define HW_LOCAL_PHYSICALCPU (2 | CTLHW_LOCAL)
168#define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
169#define HW_LOCAL_LOGICALCPU (4 | CTLHW_LOCAL)
170#define HW_LOCAL_LOGICALCPUMAX (5 | CTLHW_LOCAL)
171
43866e37
A		 172
173/*
174 * Supporting some variables requires us to do "real" work. We
175 * gather some of that here.
176 */
177static int
2d21ac55
A		 178sysctl_hw_generic(__unused struct sysctl_oid *oidp, __unused void *arg1,
179 int arg2, struct sysctl_req *req)
43866e37
A		 180{
181 char dummy[65];
182 int epochTemp;
43866e37
A		 183 ml_cpu_info_t cpu_info;
184 int val, doquad;
185 long long qval;
91447636
A		 186 host_basic_info_data_t hinfo;
187 kern_return_t kret;
2d21ac55 188 mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
43866e37
A		 189
190 /*
191 * Test and mask off the 'return quad' flag.
192 * Note that only some things here support it.
193 */
194 doquad = arg2 & CTLHW_RETQUAD;
195 arg2 &= ~CTLHW_RETQUAD;
196
197 ml_cpu_get_info(&cpu_info);
198
91447636 199#define BSD_HOST 1
2d21ac55 200 kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
91447636 201
43866e37
A		 202 /*
203 * Handle various OIDs.
204 *
205 * OIDs that can return int or quad set val and qval and then break.
206 * Errors and int-only values return inline.
207 */
208 switch (arg2) {
209 case HW_NCPU:
91447636
A		 210 if (kret == KERN_SUCCESS) {
211 return(SYSCTL_RETURN(req, hinfo.max_cpus));
212 } else {
213 return(EINVAL);
43866e37
A		 214 }
215 case HW_AVAILCPU:
91447636
A		 216 if (kret == KERN_SUCCESS) {
217 return(SYSCTL_RETURN(req, hinfo.avail_cpus));
218 } else {
219 return(EINVAL);
220 }
221 case HW_LOCAL_PHYSICALCPU:
222 if (kret == KERN_SUCCESS) {
223 return(SYSCTL_RETURN(req, hinfo.physical_cpu));
224 } else {
225 return(EINVAL);
226 }
227 case HW_LOCAL_PHYSICALCPUMAX:
228 if (kret == KERN_SUCCESS) {
229 return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
230 } else {
231 return(EINVAL);
232 }
233 case HW_LOCAL_LOGICALCPU:
234 if (kret == KERN_SUCCESS) {
235 return(SYSCTL_RETURN(req, hinfo.logical_cpu));
236 } else {
237 return(EINVAL);
238 }
239 case HW_LOCAL_LOGICALCPUMAX:
240 if (kret == KERN_SUCCESS) {
241 return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
242 } else {
243 return(EINVAL);
43866e37 244 }
39236c6e
A		 245 case HW_PAGESIZE:
246 {
247 vm_map_t map = get_task_map(current_task());
248 val = vm_map_page_size(map);
249 qval = (long long)val;
250 break;
251 }
43866e37
A		 252 case HW_CACHELINE:
253 val = cpu_info.cache_line_size;
254 qval = (long long)val;
255 break;
256 case HW_L1ICACHESIZE:
257 val = cpu_info.l1_icache_size;
258 qval = (long long)val;
259 break;
260 case HW_L1DCACHESIZE:
261 val = cpu_info.l1_dcache_size;
262 qval = (long long)val;
263 break;
264 case HW_L2CACHESIZE:
265 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
266 return(EINVAL);
267 val = cpu_info.l2_cache_size;
268 qval = (long long)val;
269 break;
270 case HW_L3CACHESIZE:
271 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
272 return(EINVAL);
273 val = cpu_info.l3_cache_size;
274 qval = (long long)val;
275 break;
276
277 /*
278 * Deprecated variables. We still support these for
279 * backwards compatibility purposes only.
280 */
281 case HW_MACHINE:
282 bzero(dummy, sizeof(dummy));
283 if(!PEGetMachineName(dummy,64))
284 return(EINVAL);
285 dummy[64] = 0;
286 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
287 case HW_MODEL:
288 bzero(dummy, sizeof(dummy));
289 if(!PEGetModelName(dummy,64))
290 return(EINVAL);
291 dummy[64] = 0;
292 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
293 case HW_USERMEM:
294 {
295 int usermem = mem_size - vm_page_wire_count * page_size;
296
297 return(SYSCTL_RETURN(req, usermem));
298 }
299 case HW_EPOCH:
300 epochTemp = PEGetPlatformEpoch();
301 if (epochTemp == -1)
302 return(EINVAL);
303 return(SYSCTL_RETURN(req, epochTemp));
0c530ab8
A		 304 case HW_VECTORUNIT: {
305 int vector = cpu_info.vector_unit == 0? 0 : 1;
306 return(SYSCTL_RETURN(req, vector));
307 }
43866e37
A		 308 case HW_L2SETTINGS:
309 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
310 return(EINVAL);
311 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
312 case HW_L3SETTINGS:
313 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
314 return(EINVAL);
315 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
316 default:
317 return(ENOTSUP);
318 }
319 /*
320 * Callers may come to us with either int or quad buffers.
321 */
322 if (doquad) {
323 return(SYSCTL_RETURN(req, qval));
324 }
325 return(SYSCTL_RETURN(req, val));
326}
327
2d21ac55
A		 328/* hw.pagesize and hw.tbfrequency are expected as 64 bit values */
329static int
330sysctl_pagesize
331(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
332{
39236c6e
A		 333 vm_map_t map = get_task_map(current_task());
334 long long l = vm_map_page_size(map);
2d21ac55
A		 335 return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
336}
337
3e170ce0
A		 338static int
339sysctl_pagesize32
340(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
341{
342 long long l;
5ba3f43e
A		 343#if __arm64__
344 l = (long long) (1 << page_shift_user32);
345#else /* __arm64__ */
3e170ce0 346 l = (long long) PAGE_SIZE;
5ba3f43e 347#endif /* __arm64__ */
3e170ce0
A		 348 return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
349}
350
2d21ac55
A		 351static int
352sysctl_tbfrequency
353(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
354{
355 long long l = gPEClockFrequencyInfo.timebase_frequency_hz;
356 return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
357}
358
43866e37
A		 359/*
360 * hw.* MIB variables.
361 */
6d2010ae
A		 362SYSCTL_PROC (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_NCPU, sysctl_hw_generic, "I", "");
363SYSCTL_PROC (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
364SYSCTL_PROC (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
365SYSCTL_PROC (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
366SYSCTL_PROC (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
367SYSCTL_PROC (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
368SYSCTL_INT (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, BYTE_ORDER, "");
369SYSCTL_INT (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputype, 0, "");
370SYSCTL_INT (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpusubtype, 0, "");
371SYSCTL_INT (_hw, OID_AUTO, cpu64bit_capable, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpu64bit, 0, "");
372SYSCTL_INT (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpufamily, 0, "");
373SYSCTL_OPAQUE (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD | CTLFLAG_LOCKED, &cacheconfig, sizeof(cacheconfig), "Q", "");
374SYSCTL_OPAQUE (_hw, OID_AUTO, cachesize, CTLFLAG_RD | CTLFLAG_LOCKED, &cachesize, sizeof(cachesize), "Q", "");
375SYSCTL_PROC (_hw, OID_AUTO, pagesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize, "Q", "");
3e170ce0 376SYSCTL_PROC (_hw, OID_AUTO, pagesize32, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize32, "Q", "");
5ba3f43e 377#if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
6d2010ae
A		 378SYSCTL_QUAD (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_hz, "");
379SYSCTL_QUAD (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
380SYSCTL_QUAD (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
381SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
382SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
383SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
5ba3f43e 384#endif
6d2010ae
A		 385SYSCTL_PROC (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
386SYSCTL_PROC (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
387SYSCTL_PROC (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
388SYSCTL_PROC (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
389SYSCTL_PROC (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
5ba3f43e
A		 390#if (defined(__arm__) || defined(__arm64__)) && (DEBUG || DEVELOPMENT)
391SYSCTL_QUAD (_hw, OID_AUTO, memfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_hz, "");
392SYSCTL_QUAD (_hw, OID_AUTO, memfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_min_hz, "");
393SYSCTL_QUAD (_hw, OID_AUTO, memfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_max_hz, "");
394SYSCTL_QUAD (_hw, OID_AUTO, prffrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_hz, "");
395SYSCTL_QUAD (_hw, OID_AUTO, prffrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_min_hz, "");
396SYSCTL_QUAD (_hw, OID_AUTO, prffrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_max_hz, "");
397SYSCTL_QUAD (_hw, OID_AUTO, fixfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.fix_frequency_hz, "");
398#endif /* __arm__ || __arm64__ */
6d2010ae
A		 399SYSCTL_PROC(_hw, OID_AUTO, tbfrequency, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_tbfrequency, "Q", "");
400SYSCTL_QUAD (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &max_mem, "");
401SYSCTL_INT (_hw, OID_AUTO, packages, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &packages, 0, "");
43866e37
A		 402
403/*
39037602 404 * Optional CPU features can register nodes below hw.optional.
43866e37
A		 405 *
406 * If the feature is not present, the node should either not be registered,
407 * or it should return -1. If the feature is present, the node should return
408 * 0. If the feature is present and its use is advised, the node should
409 * return 1.
410 */
2d21ac55 411SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW|CTLFLAG_LOCKED, NULL, "optional features");
43866e37 412
6d2010ae 413SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, 1, ""); /* always set */
43866e37 414
39037602
A		 415/*
416 * Optional device hardware features can be registered by drivers below hw.features
417 */
418SYSCTL_NODE(_hw, OID_AUTO, features, CTLFLAG_RD | CTLFLAG_LOCKED, NULL, "hardware features");
419
43866e37
A		 420/*
421 * Deprecated variables. These are supported for backwards compatibility
422 * purposes only. The MASKED flag requests that the variables not be
423 * printed by sysctl(8) and similar utilities.
424 *
425 * The variables named *_compat here are int-sized versions of variables
426 * that are now exported as quads. The int-sized versions are normally
427 * looked up only by number, wheras the quad-sized versions should be
428 * looked up by name.
429 *
430 * The *_compat nodes are *NOT* visible within the kernel.
431 */
39236c6e 432SYSCTL_PROC(_hw, HW_PAGESIZE, pagesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_PAGESIZE, sysctl_hw_generic, "I", "");
5ba3f43e 433#if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
6d2010ae
A		 434SYSCTL_COMPAT_INT (_hw, HW_BUS_FREQ, busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
435SYSCTL_COMPAT_INT (_hw, HW_CPU_FREQ, cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
5ba3f43e 436#endif
6d2010ae
A		 437SYSCTL_PROC(_hw, HW_CACHELINE, cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
438SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
439SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
440SYSCTL_PROC(_hw, HW_L2CACHESIZE, l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
441SYSCTL_PROC(_hw, HW_L3CACHESIZE, l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
442SYSCTL_COMPAT_INT (_hw, HW_TB_FREQ, tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
443SYSCTL_PROC(_hw, HW_MACHINE, machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
444SYSCTL_PROC(_hw, HW_MODEL, model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
445SYSCTL_COMPAT_UINT(_hw, HW_PHYSMEM, physmem, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &mem_size, 0, "");
446SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_USERMEM, sysctl_hw_generic, "I", "");
447SYSCTL_PROC(_hw, HW_EPOCH, epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
448SYSCTL_PROC(_hw, HW_VECTORUNIT, vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
449SYSCTL_PROC(_hw, HW_L2SETTINGS, l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
450SYSCTL_PROC(_hw, HW_L3SETTINGS, l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
451SYSCTL_INT (_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputhreadtype, 0, "");
452
316670eb 453#if defined(__i386__) || defined(__x86_64__)
bd504ef0
A		 454static int
455sysctl_cpu_capability
456(__unused struct sysctl_oid *oidp, void *arg1, __unused int arg2, struct sysctl_req *req)
457{
458 uint64_t mask = (uint64_t) (uintptr_t) arg1;
459 boolean_t is_capable = (_get_cpu_capabilities() & mask) != 0;
460
461 return SYSCTL_OUT(req, &is_capable, sizeof(is_capable));
462
463}
464
fe8ab488
A		 465SYSCTL_PROC(_hw_optional, OID_AUTO, mmx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMMX, 0, sysctl_cpu_capability, "I", "");
466SYSCTL_PROC(_hw_optional, OID_AUTO, sse, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE, 0, sysctl_cpu_capability, "I", "");
467SYSCTL_PROC(_hw_optional, OID_AUTO, sse2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE2, 0, sysctl_cpu_capability, "I", "");
468SYSCTL_PROC(_hw_optional, OID_AUTO, sse3, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE3, 0, sysctl_cpu_capability, "I", "");
469SYSCTL_PROC(_hw_optional, OID_AUTO, supplementalsse3, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSupplementalSSE3, 0, sysctl_cpu_capability, "I", "");
470SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_1, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_1, 0, sysctl_cpu_capability, "I", "");
471SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_2, 0, sysctl_cpu_capability, "I", "");
b0d623f7
A		 472/* "x86_64" is actually a preprocessor symbol on the x86_64 kernel, so we have to hack this */
473#undef x86_64
fe8ab488
A		 474SYSCTL_PROC(_hw_optional, OID_AUTO, x86_64, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) k64Bit, 0, sysctl_cpu_capability, "I", "");
475SYSCTL_PROC(_hw_optional, OID_AUTO, aes, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAES, 0, sysctl_cpu_capability, "I", "");
476SYSCTL_PROC(_hw_optional, OID_AUTO, avx1_0, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX1_0, 0, sysctl_cpu_capability, "I", "");
477SYSCTL_PROC(_hw_optional, OID_AUTO, rdrand, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRDRAND, 0, sysctl_cpu_capability, "I", "");
478SYSCTL_PROC(_hw_optional, OID_AUTO, f16c, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasF16C, 0, sysctl_cpu_capability, "I", "");
479SYSCTL_PROC(_hw_optional, OID_AUTO, enfstrg, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasENFSTRG, 0, sysctl_cpu_capability, "I", "");
480SYSCTL_PROC(_hw_optional, OID_AUTO, fma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasFMA, 0, sysctl_cpu_capability, "I", "");
481SYSCTL_PROC(_hw_optional, OID_AUTO, avx2_0, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX2_0, 0, sysctl_cpu_capability, "I", "");
482SYSCTL_PROC(_hw_optional, OID_AUTO, bmi1, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI1, 0, sysctl_cpu_capability, "I", "");
483SYSCTL_PROC(_hw_optional, OID_AUTO, bmi2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI2, 0, sysctl_cpu_capability, "I", "");
484SYSCTL_PROC(_hw_optional, OID_AUTO, rtm, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRTM, 0, sysctl_cpu_capability, "I", "");
485SYSCTL_PROC(_hw_optional, OID_AUTO, hle, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasHLE, 0, sysctl_cpu_capability, "I", "");
a1c7dba1 486SYSCTL_PROC(_hw_optional, OID_AUTO, adx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasADX, 0, sysctl_cpu_capability, "I", "");
2dced7af
A		 487SYSCTL_PROC(_hw_optional, OID_AUTO, mpx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMPX, 0, sysctl_cpu_capability, "I", "");
488SYSCTL_PROC(_hw_optional, OID_AUTO, sgx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSGX, 0, sysctl_cpu_capability, "I", "");
5ba3f43e
A		 489#if !defined(RC_HIDE_XNU_J137)
490SYSCTL_PROC(_hw_optional, OID_AUTO, avx512f, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512F, 0, sysctl_cpu_capability, "I", "");
491SYSCTL_PROC(_hw_optional, OID_AUTO, avx512cd, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512CD, 0, sysctl_cpu_capability, "I", "");
492SYSCTL_PROC(_hw_optional, OID_AUTO, avx512dq, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512DQ, 0, sysctl_cpu_capability, "I", "");
493SYSCTL_PROC(_hw_optional, OID_AUTO, avx512bw, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512BW, 0, sysctl_cpu_capability, "I", "");
494SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vl, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VL, 0, sysctl_cpu_capability, "I", "");
495SYSCTL_PROC(_hw_optional, OID_AUTO, avx512ifma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512IFMA, 0, sysctl_cpu_capability, "I", "");
496SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vbmi, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VBMI, 0, sysctl_cpu_capability, "I", "");
497#endif /* not RC_HIDE_XNU_J137 */
498#elif defined (__arm__) || defined (__arm64__)
499int watchpoint_flag = -1;
500int breakpoint_flag = -1;
501int gNeon = -1;
502int gNeonHpfp = -1;
503int gARMv81Atomics = 0;
504
505#if defined (__arm__)
506int arm64_flag = 0;
507#elif defined (__arm64__) /* end __arm__*/
508int arm64_flag = 1;
509#else /* end __arm64__*/
510int arm64_flag = -1;
511#endif
512
513SYSCTL_INT(_hw_optional, OID_AUTO, watchpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &watchpoint_flag, 0, "");
514SYSCTL_INT(_hw_optional, OID_AUTO, breakpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &breakpoint_flag, 0, "");
515SYSCTL_INT(_hw_optional, OID_AUTO, neon, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeon, 0, "");
516SYSCTL_INT(_hw_optional, OID_AUTO, neon_hpfp, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeonHpfp, 0, "");
517SYSCTL_INT(_hw_optional, OID_AUTO, armv8_1_atomics, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gARMv81Atomics, 0, "");
518
519/*
520 * Without this little ifdef dance, the preprocessor replaces "arm64" with "1",
521 * leaving us with a less-than-helpful sysctl.hwoptional.1.
522 */
523#ifdef arm64
524#undef arm64
525SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
526#define arm64 1
527#else
528SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
529#endif
530
316670eb
A		 531#else
532#error Unsupported arch
fe8ab488 533#endif /* !__i386__ && !__x86_64 && !__arm__ && ! __arm64__ */
43866e37 534
0c530ab8 535
43866e37
A		 536/******************************************************************************
537 * Generic MIB initialisation.
538 *
539 * This is a hack, and should be replaced with SYSINITs
540 * at some point.
541 */
542void
543sysctl_mib_init(void)
544{
91447636
A		 545 cputype = cpu_type();
546 cpusubtype = cpu_subtype();
547 cputhreadtype = cpu_threadtype();
6d2010ae 548#if defined(__i386__) || defined (__x86_64__)
39236c6e 549 cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
5ba3f43e
A		 550#elif defined(__arm__) || defined (__arm64__)
551 cpu64bit = (cputype & CPU_ARCH_ABI64) == CPU_ARCH_ABI64;
316670eb
A		 552#else
553#error Unsupported arch
2d21ac55 554#endif
91447636 555
43866e37
A		 556 /*
557 * Populate the optional portion of the hw.* MIB.
558 *
559 * XXX This could be broken out into parts of the code
560 * that actually directly relate to the functions in
561 * question.
562 */
91447636
A		 563
564 if (cputhreadtype != CPU_THREADTYPE_NONE) {
91447636
A		 565 sysctl_register_oid(&sysctl__hw_cputhreadtype);
566 }
567
6d2010ae 568#if defined (__i386__) || defined (__x86_64__)
0c530ab8 569 /* hw.cpufamily */
7e4a7d39
A		 570 cpufamily = cpuid_cpufamily();
571
0c530ab8 572 /* hw.cacheconfig */
2d21ac55
A		 573 cacheconfig[0] = ml_cpu_cache_sharing(0);
574 cacheconfig[1] = ml_cpu_cache_sharing(1);
575 cacheconfig[2] = ml_cpu_cache_sharing(2);
576 cacheconfig[3] = ml_cpu_cache_sharing(3);
0c530ab8
A		 577 cacheconfig[4] = 0;
578
2d21ac55
A		 579 /* hw.cachesize */
580 cachesize[0] = ml_cpu_cache_size(0);
581 cachesize[1] = ml_cpu_cache_size(1);
582 cachesize[2] = ml_cpu_cache_size(2);
583 cachesize[3] = ml_cpu_cache_size(3);
584 cachesize[4] = 0;
585
586 /* hw.packages */
593a1d5f
A		 587 packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
588 / cpuid_info()->thread_count;
589
5ba3f43e
A		 590#elif defined(__arm__) || defined(__arm64__) /* end __i386 */
591
592 cpufamily = cpuid_get_cpufamily();
593
594 watchpoint_flag = arm_debug_info()->num_watchpoint_pairs;
595 breakpoint_flag = arm_debug_info()->num_breakpoint_pairs;
596
5c9f4661 597 arm_mvfp_info_t *mvfp_info = arm_mvfp_info();
5ba3f43e
A		 598 gNeon = mvfp_info->neon;
599 gNeonHpfp = mvfp_info->neon_hpfp;
600
601 cacheconfig[0] = ml_get_max_cpus();
602 cacheconfig[1] = 1;
603 cacheconfig[2] = cache_info()->c_l2size ? 1:0;
604 cacheconfig[3] = 0;
605 cacheconfig[4] = 0;
606 cacheconfig[5] = 0;
607 cacheconfig[6] = 0;
608
609 cachesize[0] = ml_get_machine_mem();
610 cachesize[1] = cache_info()->c_dsize; /* Using the DCache */
611 cachesize[2] = cache_info()->c_l2size;
612 cachesize[3] = 0;
613 cachesize[4] = 0;
614
615 packages = 1;
316670eb
A		 616#else
617#error unknown architecture
fe8ab488 618#endif /* !__i386__ && !__x86_64 && !__arm__ && !__arm64__ */
43866e37 619
43866e37 620}
mirror of XNU