1/*
2 * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
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.
14 *
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
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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>
73#include <sys/proc_internal.h>
74#include <sys/unistd.h>
75
76#if defined(SMP)
77#include <machine/smp.h>
78#endif
79
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>
85#include <sys/file_internal.h>
86#include <sys/vnode.h>
87#include <sys/unistd.h>
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>
100#include <vm/vm_map.h>
101#include <vm/vm_protos.h>
102#include <mach/host_info.h>
103#include <kern/pms.h>
104
105extern vm_map_t bsd_pageable_map;
106
107#include <sys/mount_internal.h>
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
116#include <mach/mach_host.h> /* for host_info() */
117
118#if defined(__i386__) || defined(__x86_64__)
119#include <i386/cpuid.h> /* for cpuid_info() */
120#endif
121
122#if defined(__arm__) || defined(__arm64__)
123#include <arm/cpuid.h> /* for cpuid_info() & cache_info() */
124#endif
125
126
127#ifndef MAX
128#define MAX(a,b) (a >= b ? a : b)
129#endif
130
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;
137
138SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
139 "Sysctl internal magic");
140SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
141 "High kernel, proc, limits &c");
142SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
143 "Virtual memory");
144SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
145 "File system");
146SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
147 "Network, (see socket.h)");
148SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
149 "Debugging");
150SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
151 "hardware");
152SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
153 "machine dependent");
154SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
155 "user-level");
156
157SYSCTL_NODE(_kern, OID_AUTO, bridge, CTLFLAG_RW|CTLFLAG_LOCKED, 0,
158 "bridge");
159
160#define SYSCTL_RETURN(r, x) SYSCTL_OUT(r, &x, sizeof(x))
161
162/******************************************************************************
163 * hw.* MIB
164 */
165
166#define CTLHW_RETQUAD (1 << 31)
167#define CTLHW_LOCAL (1 << 30)
168
169#define HW_LOCAL_CPUTHREADTYPE (1 | CTLHW_LOCAL)
170#define HW_LOCAL_PHYSICALCPU (2 | CTLHW_LOCAL)
171#define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
172#define HW_LOCAL_LOGICALCPU (4 | CTLHW_LOCAL)
173#define HW_LOCAL_LOGICALCPUMAX (5 | CTLHW_LOCAL)
174
175
176/*
177 * Supporting some variables requires us to do "real" work. We
178 * gather some of that here.
179 */
180static int
181sysctl_hw_generic(__unused struct sysctl_oid *oidp, __unused void *arg1,
182 int arg2, struct sysctl_req *req)
183{
184 char dummy[65];
185 int epochTemp;
186 ml_cpu_info_t cpu_info;
187 int val, doquad;
188 long long qval;
189 host_basic_info_data_t hinfo;
190 kern_return_t kret;
191 mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
192
193 /*
194 * Test and mask off the 'return quad' flag.
195 * Note that only some things here support it.
196 */
197 doquad = arg2 & CTLHW_RETQUAD;
198 arg2 &= ~CTLHW_RETQUAD;
199
200 ml_cpu_get_info(&cpu_info);
201
202#define BSD_HOST 1
203 kret = host_info((host_t)BSD_HOST, HOST_BASIC_INFO, (host_info_t)&hinfo, &count);
204
205 /*
206 * Handle various OIDs.
207 *
208 * OIDs that can return int or quad set val and qval and then break.
209 * Errors and int-only values return inline.
210 */
211 switch (arg2) {
212 case HW_NCPU:
213 if (kret == KERN_SUCCESS) {
214 return(SYSCTL_RETURN(req, hinfo.max_cpus));
215 } else {
216 return(EINVAL);
217 }
218 case HW_AVAILCPU:
219 if (kret == KERN_SUCCESS) {
220 return(SYSCTL_RETURN(req, hinfo.avail_cpus));
221 } else {
222 return(EINVAL);
223 }
224 case HW_LOCAL_PHYSICALCPU:
225 if (kret == KERN_SUCCESS) {
226 return(SYSCTL_RETURN(req, hinfo.physical_cpu));
227 } else {
228 return(EINVAL);
229 }
230 case HW_LOCAL_PHYSICALCPUMAX:
231 if (kret == KERN_SUCCESS) {
232 return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
233 } else {
234 return(EINVAL);
235 }
236 case HW_LOCAL_LOGICALCPU:
237 if (kret == KERN_SUCCESS) {
238 return(SYSCTL_RETURN(req, hinfo.logical_cpu));
239 } else {
240 return(EINVAL);
241 }
242 case HW_LOCAL_LOGICALCPUMAX:
243 if (kret == KERN_SUCCESS) {
244 return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
245 } else {
246 return(EINVAL);
247 }
248 case HW_PAGESIZE:
249 {
250 vm_map_t map = get_task_map(current_task());
251 val = vm_map_page_size(map);
252 qval = (long long)val;
253 break;
254 }
255 case HW_CACHELINE:
256 val = cpu_info.cache_line_size;
257 qval = (long long)val;
258 break;
259 case HW_L1ICACHESIZE:
260 val = cpu_info.l1_icache_size;
261 qval = (long long)val;
262 break;
263 case HW_L1DCACHESIZE:
264 val = cpu_info.l1_dcache_size;
265 qval = (long long)val;
266 break;
267 case HW_L2CACHESIZE:
268 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
269 return(EINVAL);
270 val = cpu_info.l2_cache_size;
271 qval = (long long)val;
272 break;
273 case HW_L3CACHESIZE:
274 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
275 return(EINVAL);
276 val = cpu_info.l3_cache_size;
277 qval = (long long)val;
278 break;
279
280 /*
281 * Deprecated variables. We still support these for
282 * backwards compatibility purposes only.
283 */
284 case HW_MACHINE:
285 bzero(dummy, sizeof(dummy));
286 if(!PEGetMachineName(dummy,64))
287 return(EINVAL);
288 dummy[64] = 0;
289 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
290 case HW_MODEL:
291 bzero(dummy, sizeof(dummy));
292 if(!PEGetModelName(dummy,64))
293 return(EINVAL);
294 dummy[64] = 0;
295 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
296 case HW_USERMEM:
297 {
298 int usermem = mem_size - vm_page_wire_count * page_size;
299
300 return(SYSCTL_RETURN(req, usermem));
301 }
302 case HW_EPOCH:
303 epochTemp = PEGetPlatformEpoch();
304 if (epochTemp == -1)
305 return(EINVAL);
306 return(SYSCTL_RETURN(req, epochTemp));
307 case HW_VECTORUNIT: {
308 int vector = cpu_info.vector_unit == 0? 0 : 1;
309 return(SYSCTL_RETURN(req, vector));
310 }
311 case HW_L2SETTINGS:
312 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
313 return(EINVAL);
314 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
315 case HW_L3SETTINGS:
316 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
317 return(EINVAL);
318 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
319 default:
320 return(ENOTSUP);
321 }
322 /*
323 * Callers may come to us with either int or quad buffers.
324 */
325 if (doquad) {
326 return(SYSCTL_RETURN(req, qval));
327 }
328 return(SYSCTL_RETURN(req, val));
329}
330
331/* hw.pagesize and hw.tbfrequency are expected as 64 bit values */
332static int
333sysctl_pagesize
334(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
335{
336 vm_map_t map = get_task_map(current_task());
337 long long l = vm_map_page_size(map);
338 return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
339}
340
341static int
342sysctl_pagesize32
343(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
344{
345 long long l;
346#if __arm64__
347 l = (long long) (1 << page_shift_user32);
348#else /* __arm64__ */
349 l = (long long) PAGE_SIZE;
350#endif /* __arm64__ */
351 return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
352}
353
354static int
355sysctl_tbfrequency
356(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
357{
358 long long l = gPEClockFrequencyInfo.timebase_frequency_hz;
359 return sysctl_io_number(req, l, sizeof(l), NULL, NULL);
360}
361
362/*
363 * hw.* MIB variables.
364 */
365SYSCTL_PROC (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_NCPU, sysctl_hw_generic, "I", "");
366SYSCTL_PROC (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
367SYSCTL_PROC (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
368SYSCTL_PROC (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
369SYSCTL_PROC (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
370SYSCTL_PROC (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
371SYSCTL_INT (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, BYTE_ORDER, "");
372SYSCTL_INT (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputype, 0, "");
373SYSCTL_INT (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpusubtype, 0, "");
374SYSCTL_INT (_hw, OID_AUTO, cpu64bit_capable, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpu64bit, 0, "");
375SYSCTL_INT (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &cpufamily, 0, "");
376SYSCTL_OPAQUE (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD | CTLFLAG_LOCKED, &cacheconfig, sizeof(cacheconfig), "Q", "");
377SYSCTL_OPAQUE (_hw, OID_AUTO, cachesize, CTLFLAG_RD | CTLFLAG_LOCKED, &cachesize, sizeof(cachesize), "Q", "");
378SYSCTL_PROC (_hw, OID_AUTO, pagesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize, "Q", "");
379SYSCTL_PROC (_hw, OID_AUTO, pagesize32, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_pagesize32, "Q", "");
380#if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
381SYSCTL_QUAD (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_hz, "");
382SYSCTL_QUAD (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
383SYSCTL_QUAD (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
384SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
385SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
386SYSCTL_QUAD (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
387#endif
388SYSCTL_PROC (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
389SYSCTL_PROC (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
390SYSCTL_PROC (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
391SYSCTL_PROC (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
392SYSCTL_PROC (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
393#if (defined(__arm__) || defined(__arm64__)) && (DEBUG || DEVELOPMENT)
394SYSCTL_QUAD (_hw, OID_AUTO, memfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_hz, "");
395SYSCTL_QUAD (_hw, OID_AUTO, memfrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_min_hz, "");
396SYSCTL_QUAD (_hw, OID_AUTO, memfrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.mem_frequency_max_hz, "");
397SYSCTL_QUAD (_hw, OID_AUTO, prffrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_hz, "");
398SYSCTL_QUAD (_hw, OID_AUTO, prffrequency_min, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_min_hz, "");
399SYSCTL_QUAD (_hw, OID_AUTO, prffrequency_max, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.prf_frequency_max_hz, "");
400SYSCTL_QUAD (_hw, OID_AUTO, fixfrequency, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.fix_frequency_hz, "");
401#endif /* __arm__ || __arm64__ */
402SYSCTL_PROC(_hw, OID_AUTO, tbfrequency, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, 0, 0, sysctl_tbfrequency, "Q", "");
403SYSCTL_QUAD (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &max_mem, "");
404SYSCTL_INT (_hw, OID_AUTO, packages, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &packages, 0, "");
405
406/*
407 * Optional CPU features can register nodes below hw.optional.
408 *
409 * If the feature is not present, the node should either not be registered,
410 * or it should return -1. If the feature is present, the node should return
411 * 0. If the feature is present and its use is advised, the node should
412 * return 1.
413 */
414SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW|CTLFLAG_LOCKED, NULL, "optional features");
415
416SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (int *)NULL, 1, ""); /* always set */
417
418/*
419 * Optional device hardware features can be registered by drivers below hw.features
420 */
421SYSCTL_NODE(_hw, OID_AUTO, features, CTLFLAG_RD | CTLFLAG_LOCKED, NULL, "hardware features");
422
423/*
424 * Deprecated variables. These are supported for backwards compatibility
425 * purposes only. The MASKED flag requests that the variables not be
426 * printed by sysctl(8) and similar utilities.
427 *
428 * The variables named *_compat here are int-sized versions of variables
429 * that are now exported as quads. The int-sized versions are normally
430 * looked up only by number, wheras the quad-sized versions should be
431 * looked up by name.
432 *
433 * The *_compat nodes are *NOT* visible within the kernel.
434 */
435SYSCTL_PROC(_hw, HW_PAGESIZE, pagesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_PAGESIZE, sysctl_hw_generic, "I", "");
436#if DEBUG || DEVELOPMENT || (!defined(__arm__) && !defined(__arm64__))
437SYSCTL_COMPAT_INT (_hw, HW_BUS_FREQ, busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
438SYSCTL_COMPAT_INT (_hw, HW_CPU_FREQ, cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
439#endif
440SYSCTL_PROC(_hw, HW_CACHELINE, cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
441SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
442SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
443SYSCTL_PROC(_hw, HW_L2CACHESIZE, l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
444SYSCTL_PROC(_hw, HW_L3CACHESIZE, l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
445SYSCTL_COMPAT_INT (_hw, HW_TB_FREQ, tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
446SYSCTL_PROC(_hw, HW_MACHINE, machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
447SYSCTL_PROC(_hw, HW_MODEL, model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
448SYSCTL_COMPAT_UINT(_hw, HW_PHYSMEM, physmem, CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, &mem_size, 0, "");
449SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_USERMEM, sysctl_hw_generic, "I", "");
450SYSCTL_PROC(_hw, HW_EPOCH, epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
451SYSCTL_PROC(_hw, HW_VECTORUNIT, vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
452SYSCTL_PROC(_hw, HW_L2SETTINGS, l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
453SYSCTL_PROC(_hw, HW_L3SETTINGS, l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED | CTLFLAG_LOCKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
454SYSCTL_INT (_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | CTLFLAG_LOCKED, &cputhreadtype, 0, "");
455
456#if defined(__i386__) || defined(__x86_64__)
457static int
458sysctl_cpu_capability
459(__unused struct sysctl_oid *oidp, void *arg1, __unused int arg2, struct sysctl_req *req)
460{
461 uint64_t mask = (uint64_t) (uintptr_t) arg1;
462 boolean_t is_capable = (_get_cpu_capabilities() & mask) != 0;
463
464 return SYSCTL_OUT(req, &is_capable, sizeof(is_capable));
465
466}
467
468SYSCTL_PROC(_hw_optional, OID_AUTO, mmx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMMX, 0, sysctl_cpu_capability, "I", "");
469SYSCTL_PROC(_hw_optional, OID_AUTO, sse, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE, 0, sysctl_cpu_capability, "I", "");
470SYSCTL_PROC(_hw_optional, OID_AUTO, sse2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE2, 0, sysctl_cpu_capability, "I", "");
471SYSCTL_PROC(_hw_optional, OID_AUTO, sse3, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE3, 0, sysctl_cpu_capability, "I", "");
472SYSCTL_PROC(_hw_optional, OID_AUTO, supplementalsse3, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSupplementalSSE3, 0, sysctl_cpu_capability, "I", "");
473SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_1, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_1, 0, sysctl_cpu_capability, "I", "");
474SYSCTL_PROC(_hw_optional, OID_AUTO, sse4_2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSSE4_2, 0, sysctl_cpu_capability, "I", "");
475/* "x86_64" is actually a preprocessor symbol on the x86_64 kernel, so we have to hack this */
476#undef x86_64
477SYSCTL_PROC(_hw_optional, OID_AUTO, x86_64, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) k64Bit, 0, sysctl_cpu_capability, "I", "");
478SYSCTL_PROC(_hw_optional, OID_AUTO, aes, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAES, 0, sysctl_cpu_capability, "I", "");
479SYSCTL_PROC(_hw_optional, OID_AUTO, avx1_0, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX1_0, 0, sysctl_cpu_capability, "I", "");
480SYSCTL_PROC(_hw_optional, OID_AUTO, rdrand, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRDRAND, 0, sysctl_cpu_capability, "I", "");
481SYSCTL_PROC(_hw_optional, OID_AUTO, f16c, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasF16C, 0, sysctl_cpu_capability, "I", "");
482SYSCTL_PROC(_hw_optional, OID_AUTO, enfstrg, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasENFSTRG, 0, sysctl_cpu_capability, "I", "");
483SYSCTL_PROC(_hw_optional, OID_AUTO, fma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasFMA, 0, sysctl_cpu_capability, "I", "");
484SYSCTL_PROC(_hw_optional, OID_AUTO, avx2_0, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX2_0, 0, sysctl_cpu_capability, "I", "");
485SYSCTL_PROC(_hw_optional, OID_AUTO, bmi1, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI1, 0, sysctl_cpu_capability, "I", "");
486SYSCTL_PROC(_hw_optional, OID_AUTO, bmi2, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasBMI2, 0, sysctl_cpu_capability, "I", "");
487SYSCTL_PROC(_hw_optional, OID_AUTO, rtm, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasRTM, 0, sysctl_cpu_capability, "I", "");
488SYSCTL_PROC(_hw_optional, OID_AUTO, hle, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasHLE, 0, sysctl_cpu_capability, "I", "");
489SYSCTL_PROC(_hw_optional, OID_AUTO, adx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasADX, 0, sysctl_cpu_capability, "I", "");
490SYSCTL_PROC(_hw_optional, OID_AUTO, mpx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasMPX, 0, sysctl_cpu_capability, "I", "");
491SYSCTL_PROC(_hw_optional, OID_AUTO, sgx, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasSGX, 0, sysctl_cpu_capability, "I", "");
492#if !defined(RC_HIDE_XNU_J137)
493SYSCTL_PROC(_hw_optional, OID_AUTO, avx512f, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512F, 0, sysctl_cpu_capability, "I", "");
494SYSCTL_PROC(_hw_optional, OID_AUTO, avx512cd, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512CD, 0, sysctl_cpu_capability, "I", "");
495SYSCTL_PROC(_hw_optional, OID_AUTO, avx512dq, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512DQ, 0, sysctl_cpu_capability, "I", "");
496SYSCTL_PROC(_hw_optional, OID_AUTO, avx512bw, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512BW, 0, sysctl_cpu_capability, "I", "");
497SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vl, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VL, 0, sysctl_cpu_capability, "I", "");
498SYSCTL_PROC(_hw_optional, OID_AUTO, avx512ifma, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512IFMA, 0, sysctl_cpu_capability, "I", "");
499SYSCTL_PROC(_hw_optional, OID_AUTO, avx512vbmi, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, (void *) kHasAVX512VBMI, 0, sysctl_cpu_capability, "I", "");
500#endif /* not RC_HIDE_XNU_J137 */
501#elif defined (__arm__) || defined (__arm64__)
502int watchpoint_flag = -1;
503int breakpoint_flag = -1;
504int gNeon = -1;
505int gNeonHpfp = -1;
506int gNeonFp16 = -1;
507int gARMv81Atomics = 0;
508int gARMv8Crc32 = 0;
509
510#if defined (__arm__)
511int arm64_flag = 0;
512#elif defined (__arm64__) /* end __arm__*/
513int arm64_flag = 1;
514#else /* end __arm64__*/
515int arm64_flag = -1;
516#endif
517
518SYSCTL_INT(_hw_optional, OID_AUTO, watchpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &watchpoint_flag, 0, "");
519SYSCTL_INT(_hw_optional, OID_AUTO, breakpoint, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &breakpoint_flag, 0, "");
520SYSCTL_INT(_hw_optional, OID_AUTO, neon, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeon, 0, "");
521SYSCTL_INT(_hw_optional, OID_AUTO, neon_hpfp, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeonHpfp, 0, "");
522SYSCTL_INT(_hw_optional, OID_AUTO, neon_fp16, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gNeonFp16, 0, "");
523SYSCTL_INT(_hw_optional, OID_AUTO, armv8_1_atomics, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gARMv81Atomics, 0, "");
524SYSCTL_INT(_hw_optional, OID_AUTO, armv8_crc32, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &gARMv8Crc32, 0, "");
525
526/*
527 * Without this little ifdef dance, the preprocessor replaces "arm64" with "1",
528 * leaving us with a less-than-helpful sysctl.hwoptional.1.
529 */
530#ifdef arm64
531#undef arm64
532SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
533#define arm64 1
534#else
535SYSCTL_INT(_hw_optional, OID_AUTO, arm64, CTLFLAG_RD | CTLFLAG_KERN | CTLFLAG_LOCKED, &arm64_flag, 0, "");
536#endif
537
538#else
539#error Unsupported arch
540#endif /* !__i386__ && !__x86_64 && !__arm__ && ! __arm64__ */
541
542
543/******************************************************************************
544 * Generic MIB initialisation.
545 *
546 * This is a hack, and should be replaced with SYSINITs
547 * at some point.
548 */
549void
550sysctl_mib_init(void)
551{
552 cputype = cpu_type();
553 cpusubtype = cpu_subtype();
554 cputhreadtype = cpu_threadtype();
555#if defined(__i386__) || defined (__x86_64__)
556 cpu64bit = (_get_cpu_capabilities() & k64Bit) == k64Bit;
557#elif defined(__arm__) || defined (__arm64__)
558 cpu64bit = (cputype & CPU_ARCH_ABI64) == CPU_ARCH_ABI64;
559#else
560#error Unsupported arch
561#endif
562
563 /*
564 * Populate the optional portion of the hw.* MIB.
565 *
566 * XXX This could be broken out into parts of the code
567 * that actually directly relate to the functions in
568 * question.
569 */
570
571 if (cputhreadtype != CPU_THREADTYPE_NONE) {
572 sysctl_register_oid(&sysctl__hw_cputhreadtype);
573 }
574
575#if defined (__i386__) || defined (__x86_64__)
576 /* hw.cpufamily */
577 cpufamily = cpuid_cpufamily();
578
579 /* hw.cacheconfig */
580 cacheconfig[0] = ml_cpu_cache_sharing(0);
581 cacheconfig[1] = ml_cpu_cache_sharing(1);
582 cacheconfig[2] = ml_cpu_cache_sharing(2);
583 cacheconfig[3] = ml_cpu_cache_sharing(3);
584 cacheconfig[4] = 0;
585
586 /* hw.cachesize */
587 cachesize[0] = ml_cpu_cache_size(0);
588 cachesize[1] = ml_cpu_cache_size(1);
589 cachesize[2] = ml_cpu_cache_size(2);
590 cachesize[3] = ml_cpu_cache_size(3);
591 cachesize[4] = 0;
592
593 /* hw.packages */
594 packages = roundup(ml_cpu_cache_sharing(0), cpuid_info()->thread_count)
595 / cpuid_info()->thread_count;
596
597#elif defined(__arm__) || defined(__arm64__) /* end __i386 */
598
599 cpufamily = cpuid_get_cpufamily();
600
601 watchpoint_flag = arm_debug_info()->num_watchpoint_pairs;
602 breakpoint_flag = arm_debug_info()->num_breakpoint_pairs;
603
604 arm_mvfp_info_t *mvfp_info = arm_mvfp_info();
605 gNeon = mvfp_info->neon;
606 gNeonHpfp = mvfp_info->neon_hpfp;
607 gNeonFp16 = mvfp_info->neon_fp16;
608
609 cacheconfig[0] = ml_get_max_cpus();
610 cacheconfig[1] = 1;
611 cacheconfig[2] = cache_info()->c_l2size ? 1:0;
612 cacheconfig[3] = 0;
613 cacheconfig[4] = 0;
614 cacheconfig[5] = 0;
615 cacheconfig[6] = 0;
616
617 cachesize[0] = ml_get_machine_mem();
618 cachesize[1] = cache_info()->c_dsize; /* Using the DCache */
619 cachesize[2] = cache_info()->c_l2size;
620 cachesize[3] = 0;
621 cachesize[4] = 0;
622
623 packages = 1;
624#else
625#error unknown architecture
626#endif /* !__i386__ && !__x86_64 && !__arm__ && !__arm64__ */
627
628}
629