bsd/kern/kern_mib.c

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*-
  31  * Copyright (c) 1982, 1986, 1989, 1993
  32  *      The Regents of the University of California.  All rights reserved.
  33  *
  34  * This code is derived from software contributed to Berkeley by
  35  * Mike Karels at Berkeley Software Design, Inc.
  36  *
  37  * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
  38  * project, to make these variables more userfriendly.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 3. All advertising materials mentioning features or use of this software
  49  *    must display the following acknowledgement:
  50  *      This product includes software developed by the University of
  51  *      California, Berkeley and its contributors.
  52  * 4. Neither the name of the University nor the names of its contributors
  53  *    may be used to endorse or promote products derived from this software
  54  *    without specific prior written permission.
  55  *
  56  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  57  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  58  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  59  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  60  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  61  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  62  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  63  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  64  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  65  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  66  * SUCH DAMAGE.
  67  *
  68  *      @(#)kern_sysctl.c       8.4 (Berkeley) 4/14/94
  69  */
  70
  71 #include <sys/param.h>
  72 #include <sys/kernel.h>
  73 #include <sys/systm.h>
  74 #include <sys/sysctl.h>
  75 #include <sys/proc_internal.h>
  76 #include <sys/unistd.h>
  77
  78 #if defined(SMP)
  79 #include <machine/smp.h>
  80 #endif
  81
  82 #include <sys/param.h>  /* XXX prune includes */
  83 #include <sys/systm.h>
  84 #include <sys/kernel.h>
  85 #include <sys/malloc.h>
  86 #include <sys/proc.h>
  87 #include <sys/file_internal.h>
  88 #include <sys/vnode.h>
  89 #include <sys/unistd.h>
  90 #include <sys/ioctl.h>
  91 #include <sys/namei.h>
  92 #include <sys/tty.h>
  93 #include <sys/disklabel.h>
  94 #include <sys/vm.h>
  95 #include <sys/sysctl.h>
  96 #include <sys/user.h>
  97 #include <mach/machine.h>
  98 #include <mach/mach_types.h>
  99 #include <mach/vm_param.h>
 100 #include <kern/task.h>
 101 #include <vm/vm_kern.h>
 102 #include <mach/host_info.h>
 103
 104 extern vm_map_t bsd_pageable_map;
 105
 106 #include <sys/mount_internal.h>
 107 #include <sys/kdebug.h>
 108
 109 #include <IOKit/IOPlatformExpert.h>
 110 #include <pexpert/pexpert.h>
 111
 112 #include <machine/machine_routines.h>
 113 #include <machine/cpu_capabilities.h>
 114
 115 static int      cputype, cpusubtype, cputhreadtype;
 116
 117 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW, 0,
 118         "Sysctl internal magic");
 119 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW, 0,
 120         "High kernel, proc, limits &c");
 121 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW, 0,
 122         "Virtual memory");
 123 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW, 0,
 124         "File system");
 125 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW, 0,
 126         "Network, (see socket.h)");
 127 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW, 0,
 128         "Debugging");
 129 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW, 0,
 130         "hardware");
 131 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
 132         "machine dependent");
 133 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW, 0,
 134         "user-level");
 135
 136 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 137
 138 /******************************************************************************
 139  * hw.* MIB
 140  */
 141
 142 #define CTLHW_RETQUAD   (1 << 31)
 143 #define CTLHW_LOCAL     (1 << 30)
 144
 145 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 146 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 147 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 148 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 149 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 150
 151
 152 /*
 153  * Supporting some variables requires us to do "real" work.  We
 154  * gather some of that here.
 155  */
 156 static int
 157 sysctl_hw_generic SYSCTL_HANDLER_ARGS
 158 {
 159         char dummy[65];
 160         int  epochTemp;
 161         extern int vm_page_wire_count;
 162         ml_cpu_info_t cpu_info;
 163         int val, doquad;
 164         long long qval;
 165         host_basic_info_data_t hinfo;
 166         kern_return_t kret;
 167         int count = HOST_BASIC_INFO_COUNT;
 168
 169         /*
 170          * Test and mask off the 'return quad' flag.
 171          * Note that only some things here support it.
 172          */
 173         doquad = arg2 & CTLHW_RETQUAD;
 174         arg2 &= ~CTLHW_RETQUAD;
 175
 176         ml_cpu_get_info(&cpu_info);
 177
 178 #define BSD_HOST 1
 179         kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count);
 180
 181         /*
 182          * Handle various OIDs.
 183          *
 184          * OIDs that can return int or quad set val and qval and then break.
 185          * Errors and int-only values return inline.
 186          */
 187         switch (arg2) {
 188         case HW_NCPU:
 189                 if (kret == KERN_SUCCESS) {
 190                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 191                 } else {
 192                         return(EINVAL);
 193                 }
 194         case HW_AVAILCPU:
 195                 if (kret == KERN_SUCCESS) {
 196                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 197                 } else {
 198                         return(EINVAL);
 199                 }
 200         case HW_LOCAL_PHYSICALCPU:
 201                 if (kret == KERN_SUCCESS) {
 202                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 203                 } else {
 204                         return(EINVAL);
 205                 }
 206         case HW_LOCAL_PHYSICALCPUMAX:
 207                 if (kret == KERN_SUCCESS) {
 208                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 209                 } else {
 210                         return(EINVAL);
 211                 }
 212         case HW_LOCAL_LOGICALCPU:
 213                 if (kret == KERN_SUCCESS) {
 214                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 215                 } else {
 216                         return(EINVAL);
 217                 }
 218         case HW_LOCAL_LOGICALCPUMAX:
 219                 if (kret == KERN_SUCCESS) {
 220                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 221                 } else {
 222                         return(EINVAL);
 223                 }
 224         case HW_CACHELINE:
 225                 val = cpu_info.cache_line_size;
 226                 qval = (long long)val;
 227                 break;
 228         case HW_L1ICACHESIZE:
 229                 val = cpu_info.l1_icache_size;
 230                 qval = (long long)val;
 231                 break;
 232         case HW_L1DCACHESIZE:
 233                 val = cpu_info.l1_dcache_size;
 234                 qval = (long long)val;
 235                 break;
 236         case HW_L2CACHESIZE:
 237                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 238                         return(EINVAL);
 239                 val = cpu_info.l2_cache_size;
 240                 qval = (long long)val;
 241                 break;
 242         case HW_L3CACHESIZE:
 243                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 244                         return(EINVAL);
 245                 val = cpu_info.l3_cache_size;
 246                 qval = (long long)val;
 247                 break;
 248
 249                 /*
 250                  * Deprecated variables.  We still support these for
 251                  * backwards compatibility purposes only.
 252                  */
 253         case HW_MACHINE:
 254                 bzero(dummy, sizeof(dummy));
 255                 if(!PEGetMachineName(dummy,64))
 256                         return(EINVAL);
 257                 dummy[64] = 0;
 258                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 259         case HW_MODEL:
 260                 bzero(dummy, sizeof(dummy));
 261                 if(!PEGetModelName(dummy,64))
 262                         return(EINVAL);
 263                 dummy[64] = 0;
 264                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 265         case HW_USERMEM:
 266                 {
 267                 int usermem = mem_size - vm_page_wire_count * page_size;
 268
 269                         return(SYSCTL_RETURN(req, usermem));
 270                 }
 271         case HW_EPOCH:
 272                 epochTemp = PEGetPlatformEpoch();
 273                 if (epochTemp == -1)
 274                         return(EINVAL);
 275                 return(SYSCTL_RETURN(req, epochTemp));
 276         case HW_VECTORUNIT:
 277                 return(SYSCTL_RETURN(req, cpu_info.vector_unit));
 278         case HW_L2SETTINGS:
 279                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 280                         return(EINVAL);
 281                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 282         case HW_L3SETTINGS:
 283                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 284                         return(EINVAL);
 285                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 286         default:
 287                 return(ENOTSUP);
 288         }
 289         /*
 290          * Callers may come to us with either int or quad buffers.
 291          */
 292         if (doquad) {
 293                 return(SYSCTL_RETURN(req, qval));
 294         }
 295         return(SYSCTL_RETURN(req, val));
 296 }
 297
 298 /*
 299  * hw.* MIB variables.
 300  */
 301 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 302 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 303 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 304 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 305 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 306 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 307 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN, NULL, BYTE_ORDER, "");
 308 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN, &cputype, 0, "");
 309 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN, &cpusubtype, 0, "");
 310 SYSCTL_INT2QUAD(_hw, OID_AUTO, pagesize, CTLFLAG_RD | CTLFLAG_KERN, &page_size, "");
 311 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 312 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 313 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 314 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 315 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 316 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 317 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 318 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 319 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 320 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 321 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 322 SYSCTL_INT2QUAD(_hw, OID_AUTO, tbfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.timebase_frequency_hz, "");
 323 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN, &max_mem, "");
 324
 325 /*
 326  * Optional features can register nodes below hw.optional.
 327  *
 328  * If the feature is not present, the node should either not be registered,
 329  * or it should return -1.  If the feature is present, the node should return
 330  * 0.  If the feature is present and its use is advised, the node should
 331  * return 1.
 332  */
 333 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW, NULL, "optional features");
 334
 335 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN, 0, 1, ""); /* always set */
 336
 337 /*
 338  * Deprecated variables.  These are supported for backwards compatibility
 339  * purposes only.  The MASKED flag requests that the variables not be
 340  * printed by sysctl(8) and similar utilities.
 341  *
 342  * The variables named *_compat here are int-sized versions of variables
 343  * that are now exported as quads.  The int-sized versions are normally
 344  * looked up only by number, wheras the quad-sized versions should be
 345  * looked up by name.
 346  *
 347  * The *_compat nodes are *NOT* visible within the kernel.
 348  */
 349 SYSCTL_INT (_hw, HW_PAGESIZE,     pagesize_compat, CTLFLAG_RD | CTLFLAG_MASKED, &page_size, 0, "");
 350 SYSCTL_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 351 SYSCTL_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 352 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 353 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 354 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 355 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 356 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 357 SYSCTL_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 358 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 359 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 360 SYSCTL_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED, &mem_size, 0, "");
 361 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_USERMEM,    sysctl_hw_generic, "I", "");
 362 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 363 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 364 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 365 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 366
 367 /******************************************************************************
 368  * Generic MIB initialisation.
 369  *
 370  * This is a hack, and should be replaced with SYSINITs
 371  * at some point.
 372  */
 373 void
 374 sysctl_mib_init(void)
 375 {
 376         cputype = cpu_type();
 377         cpusubtype = cpu_subtype();
 378         cputhreadtype = cpu_threadtype();
 379
 380         /*
 381          * Populate the optional portion of the hw.* MIB.
 382          *
 383          * XXX This could be broken out into parts of the code
 384          *     that actually directly relate to the functions in
 385          *     question.
 386          */
 387
 388         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 389                 static SYSCTL_INT(_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &cputhreadtype, 0, "");
 390                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 391         }
 392
 393 #ifdef __ppc__
 394         {
 395                 static int altivec_flag = -1;
 396                 static SYSCTL_INT(_hw_optional, OID_AUTO, altivec, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &altivec_flag, 0, "");
 397
 398                 if (_cpu_capabilities & kHasAltivec) {
 399                         altivec_flag = 1;
 400                         sysctl_register_oid(&sysctl__hw_optional_altivec);
 401                 }
 402         }
 403         {
 404                 static int graphicsops_flag = -1;
 405                 static SYSCTL_INT(_hw_optional, OID_AUTO, graphicsops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &graphicsops_flag, 0, "");
 406
 407                 if (_cpu_capabilities & kHasGraphicsOps) {
 408                         graphicsops_flag = 1;
 409                         sysctl_register_oid(&sysctl__hw_optional_graphicsops);
 410                 }
 411         }
 412         {
 413                 static int x64bitops_flag = -1;
 414                 static SYSCTL_INT(_hw_optional, OID_AUTO, 64bitops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &x64bitops_flag, 0, "");
 415
 416                 if (_cpu_capabilities & k64Bit) {
 417                         x64bitops_flag = 1;
 418                         sysctl_register_oid(&sysctl__hw_optional_64bitops);
 419                 }
 420         }
 421         {
 422                 static int fsqrt_flag = -1;
 423                 static SYSCTL_INT(_hw_optional, OID_AUTO, fsqrt, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &fsqrt_flag, 0, "");
 424
 425                 if (_cpu_capabilities & kHasFsqrt) {
 426                         fsqrt_flag = 1;
 427                         sysctl_register_oid(&sysctl__hw_optional_fsqrt);
 428                 }
 429         }
 430         {
 431                 static int stfiwx_flag = -1;
 432                 static SYSCTL_INT(_hw_optional, OID_AUTO, stfiwx, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &stfiwx_flag, 0, "");
 433
 434                 if (_cpu_capabilities & kHasStfiwx) {
 435                         stfiwx_flag = 1;
 436                         sysctl_register_oid(&sysctl__hw_optional_stfiwx);
 437                 }
 438         }
 439         {
 440                 static int dcba_flag = -1;
 441                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcba, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcba_flag, 0, "");
 442
 443                 if (_cpu_capabilities & kDcbaAvailable)
 444                         dcba_flag = 0;
 445                 if (_cpu_capabilities & kDcbaRecommended)
 446                         dcba_flag = 1;
 447                 if (dcba_flag >= 0)
 448                         sysctl_register_oid(&sysctl__hw_optional_dcba);
 449         }
 450         {
 451                 static int datastreams_flag = -1;
 452                 static SYSCTL_INT(_hw_optional, OID_AUTO, datastreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &datastreams_flag, 0, "");
 453
 454                 if (_cpu_capabilities & kDataStreamsAvailable)
 455                         datastreams_flag = 0;
 456                 if (_cpu_capabilities & kDataStreamsRecommended)
 457                         datastreams_flag = 1;
 458                 if (datastreams_flag >= 0)
 459                         sysctl_register_oid(&sysctl__hw_optional_datastreams);
 460         }
 461         {
 462                 static int dcbtstreams_flag = -1;
 463                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcbtstreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcbtstreams_flag, 0, "");
 464
 465                 if (_cpu_capabilities & kDcbtStreamsAvailable)
 466                         dcbtstreams_flag = 0;
 467                 if (_cpu_capabilities & kDcbtStreamsRecommended)
 468                         dcbtstreams_flag = 1;
 469                 if (dcbtstreams_flag >= 0)
 470                         sysctl_register_oid(&sysctl__hw_optional_dcbtstreams);
 471         }
 472 #else
 473 # warning we do not support this platform yet
 474 #endif /* __ppc__ */
 475
 476
 477 }