bsd/kern/kern_mib.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*-
  24  * Copyright (c) 1982, 1986, 1989, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * This code is derived from software contributed to Berkeley by
  28  * Mike Karels at Berkeley Software Design, Inc.
  29  *
  30  * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
  31  * project, to make these variables more userfriendly.
  32  *
  33  * Redistribution and use in source and binary forms, with or without
  34  * modification, are permitted provided that the following conditions
  35  * are met:
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  * 2. Redistributions in binary form must reproduce the above copyright
  39  *    notice, this list of conditions and the following disclaimer in the
  40  *    documentation and/or other materials provided with the distribution.
  41  * 3. All advertising materials mentioning features or use of this software
  42  *    must display the following acknowledgement:
  43  *      This product includes software developed by the University of
  44  *      California, Berkeley and its contributors.
  45  * 4. Neither the name of the University nor the names of its contributors
  46  *    may be used to endorse or promote products derived from this software
  47  *    without specific prior written permission.
  48  *
  49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  59  * SUCH DAMAGE.
  60  *
  61  *      @(#)kern_sysctl.c       8.4 (Berkeley) 4/14/94
  62  */
  63
  64 #include <sys/param.h>
  65 #include <sys/kernel.h>
  66 #include <sys/systm.h>
  67 #include <sys/sysctl.h>
  68 #include <sys/proc_internal.h>
  69 #include <sys/unistd.h>
  70
  71 #if defined(SMP)
  72 #include <machine/smp.h>
  73 #endif
  74
  75 #include <sys/param.h>  /* XXX prune includes */
  76 #include <sys/systm.h>
  77 #include <sys/kernel.h>
  78 #include <sys/malloc.h>
  79 #include <sys/proc.h>
  80 #include <sys/file_internal.h>
  81 #include <sys/vnode.h>
  82 #include <sys/unistd.h>
  83 #include <sys/ioctl.h>
  84 #include <sys/namei.h>
  85 #include <sys/tty.h>
  86 #include <sys/disklabel.h>
  87 #include <sys/vm.h>
  88 #include <sys/sysctl.h>
  89 #include <sys/user.h>
  90 #include <mach/machine.h>
  91 #include <mach/mach_types.h>
  92 #include <mach/vm_param.h>
  93 #include <kern/task.h>
  94 #include <vm/vm_kern.h>
  95 #include <mach/host_info.h>
  96
  97 extern vm_map_t bsd_pageable_map;
  98
  99 #include <sys/mount_internal.h>
 100 #include <sys/kdebug.h>
 101
 102 #include <IOKit/IOPlatformExpert.h>
 103 #include <pexpert/pexpert.h>
 104
 105 #include <machine/machine_routines.h>
 106 #include <machine/cpu_capabilities.h>
 107
 108 static int      cputype, cpusubtype, cputhreadtype;
 109
 110 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW, 0,
 111         "Sysctl internal magic");
 112 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW, 0,
 113         "High kernel, proc, limits &c");
 114 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW, 0,
 115         "Virtual memory");
 116 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW, 0,
 117         "File system");
 118 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW, 0,
 119         "Network, (see socket.h)");
 120 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW, 0,
 121         "Debugging");
 122 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW, 0,
 123         "hardware");
 124 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
 125         "machine dependent");
 126 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW, 0,
 127         "user-level");
 128
 129 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 130
 131 /******************************************************************************
 132  * hw.* MIB
 133  */
 134
 135 #define CTLHW_RETQUAD   (1 << 31)
 136 #define CTLHW_LOCAL     (1 << 30)
 137
 138 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 139 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 140 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 141 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 142 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 143
 144
 145 /*
 146  * Supporting some variables requires us to do "real" work.  We
 147  * gather some of that here.
 148  */
 149 static int
 150 sysctl_hw_generic SYSCTL_HANDLER_ARGS
 151 {
 152         char dummy[65];
 153         int  epochTemp;
 154         extern int vm_page_wire_count;
 155         ml_cpu_info_t cpu_info;
 156         int val, doquad;
 157         long long qval;
 158         host_basic_info_data_t hinfo;
 159         kern_return_t kret;
 160         int count = HOST_BASIC_INFO_COUNT;
 161
 162         /*
 163          * Test and mask off the 'return quad' flag.
 164          * Note that only some things here support it.
 165          */
 166         doquad = arg2 & CTLHW_RETQUAD;
 167         arg2 &= ~CTLHW_RETQUAD;
 168
 169         ml_cpu_get_info(&cpu_info);
 170
 171 #define BSD_HOST 1
 172         kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count);
 173
 174         /*
 175          * Handle various OIDs.
 176          *
 177          * OIDs that can return int or quad set val and qval and then break.
 178          * Errors and int-only values return inline.
 179          */
 180         switch (arg2) {
 181         case HW_NCPU:
 182                 if (kret == KERN_SUCCESS) {
 183                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 184                 } else {
 185                         return(EINVAL);
 186                 }
 187         case HW_AVAILCPU:
 188                 if (kret == KERN_SUCCESS) {
 189                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 190                 } else {
 191                         return(EINVAL);
 192                 }
 193         case HW_LOCAL_PHYSICALCPU:
 194                 if (kret == KERN_SUCCESS) {
 195                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 196                 } else {
 197                         return(EINVAL);
 198                 }
 199         case HW_LOCAL_PHYSICALCPUMAX:
 200                 if (kret == KERN_SUCCESS) {
 201                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 202                 } else {
 203                         return(EINVAL);
 204                 }
 205         case HW_LOCAL_LOGICALCPU:
 206                 if (kret == KERN_SUCCESS) {
 207                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 208                 } else {
 209                         return(EINVAL);
 210                 }
 211         case HW_LOCAL_LOGICALCPUMAX:
 212                 if (kret == KERN_SUCCESS) {
 213                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 214                 } else {
 215                         return(EINVAL);
 216                 }
 217         case HW_CACHELINE:
 218                 val = cpu_info.cache_line_size;
 219                 qval = (long long)val;
 220                 break;
 221         case HW_L1ICACHESIZE:
 222                 val = cpu_info.l1_icache_size;
 223                 qval = (long long)val;
 224                 break;
 225         case HW_L1DCACHESIZE:
 226                 val = cpu_info.l1_dcache_size;
 227                 qval = (long long)val;
 228                 break;
 229         case HW_L2CACHESIZE:
 230                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 231                         return(EINVAL);
 232                 val = cpu_info.l2_cache_size;
 233                 qval = (long long)val;
 234                 break;
 235         case HW_L3CACHESIZE:
 236                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 237                         return(EINVAL);
 238                 val = cpu_info.l3_cache_size;
 239                 qval = (long long)val;
 240                 break;
 241
 242                 /*
 243                  * Deprecated variables.  We still support these for
 244                  * backwards compatibility purposes only.
 245                  */
 246         case HW_MACHINE:
 247                 bzero(dummy, sizeof(dummy));
 248                 if(!PEGetMachineName(dummy,64))
 249                         return(EINVAL);
 250                 dummy[64] = 0;
 251                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 252         case HW_MODEL:
 253                 bzero(dummy, sizeof(dummy));
 254                 if(!PEGetModelName(dummy,64))
 255                         return(EINVAL);
 256                 dummy[64] = 0;
 257                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 258         case HW_USERMEM:
 259                 {
 260                 int usermem = mem_size - vm_page_wire_count * page_size;
 261
 262                         return(SYSCTL_RETURN(req, usermem));
 263                 }
 264         case HW_EPOCH:
 265                 epochTemp = PEGetPlatformEpoch();
 266                 if (epochTemp == -1)
 267                         return(EINVAL);
 268                 return(SYSCTL_RETURN(req, epochTemp));
 269         case HW_VECTORUNIT:
 270                 return(SYSCTL_RETURN(req, cpu_info.vector_unit));
 271         case HW_L2SETTINGS:
 272                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 273                         return(EINVAL);
 274                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 275         case HW_L3SETTINGS:
 276                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 277                         return(EINVAL);
 278                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 279         default:
 280                 return(ENOTSUP);
 281         }
 282         /*
 283          * Callers may come to us with either int or quad buffers.
 284          */
 285         if (doquad) {
 286                 return(SYSCTL_RETURN(req, qval));
 287         }
 288         return(SYSCTL_RETURN(req, val));
 289 }
 290
 291 /*
 292  * hw.* MIB variables.
 293  */
 294 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 295 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 296 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 297 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 298 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 299 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 300 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN, NULL, BYTE_ORDER, "");
 301 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN, &cputype, 0, "");
 302 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN, &cpusubtype, 0, "");
 303 SYSCTL_INT2QUAD(_hw, OID_AUTO, pagesize, CTLFLAG_RD | CTLFLAG_KERN, &page_size, "");
 304 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 305 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 306 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 307 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 308 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 309 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 310 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 311 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 312 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 313 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 314 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 315 SYSCTL_INT2QUAD(_hw, OID_AUTO, tbfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.timebase_frequency_hz, "");
 316 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN, &max_mem, "");
 317
 318 /*
 319  * Optional features can register nodes below hw.optional.
 320  *
 321  * If the feature is not present, the node should either not be registered,
 322  * or it should return -1.  If the feature is present, the node should return
 323  * 0.  If the feature is present and its use is advised, the node should
 324  * return 1.
 325  */
 326 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW, NULL, "optional features");
 327
 328 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN, 0, 1, ""); /* always set */
 329
 330 /*
 331  * Deprecated variables.  These are supported for backwards compatibility
 332  * purposes only.  The MASKED flag requests that the variables not be
 333  * printed by sysctl(8) and similar utilities.
 334  *
 335  * The variables named *_compat here are int-sized versions of variables
 336  * that are now exported as quads.  The int-sized versions are normally
 337  * looked up only by number, wheras the quad-sized versions should be
 338  * looked up by name.
 339  *
 340  * The *_compat nodes are *NOT* visible within the kernel.
 341  */
 342 SYSCTL_INT (_hw, HW_PAGESIZE,     pagesize_compat, CTLFLAG_RD | CTLFLAG_MASKED, &page_size, 0, "");
 343 SYSCTL_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 344 SYSCTL_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 345 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 346 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 347 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 348 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 349 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 350 SYSCTL_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 351 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 352 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 353 SYSCTL_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED, &mem_size, 0, "");
 354 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_USERMEM,    sysctl_hw_generic, "I", "");
 355 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 356 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 357 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 358 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 359
 360 /******************************************************************************
 361  * Generic MIB initialisation.
 362  *
 363  * This is a hack, and should be replaced with SYSINITs
 364  * at some point.
 365  */
 366 void
 367 sysctl_mib_init(void)
 368 {
 369         cputype = cpu_type();
 370         cpusubtype = cpu_subtype();
 371         cputhreadtype = cpu_threadtype();
 372
 373         /*
 374          * Populate the optional portion of the hw.* MIB.
 375          *
 376          * XXX This could be broken out into parts of the code
 377          *     that actually directly relate to the functions in
 378          *     question.
 379          */
 380
 381         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 382                 static SYSCTL_INT(_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &cputhreadtype, 0, "");
 383                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 384         }
 385
 386 #ifdef __ppc__
 387         {
 388                 static int altivec_flag = -1;
 389                 static SYSCTL_INT(_hw_optional, OID_AUTO, altivec, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &altivec_flag, 0, "");
 390
 391                 if (_cpu_capabilities & kHasAltivec) {
 392                         altivec_flag = 1;
 393                         sysctl_register_oid(&sysctl__hw_optional_altivec);
 394                 }
 395         }
 396         {
 397                 static int graphicsops_flag = -1;
 398                 static SYSCTL_INT(_hw_optional, OID_AUTO, graphicsops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &graphicsops_flag, 0, "");
 399
 400                 if (_cpu_capabilities & kHasGraphicsOps) {
 401                         graphicsops_flag = 1;
 402                         sysctl_register_oid(&sysctl__hw_optional_graphicsops);
 403                 }
 404         }
 405         {
 406                 static int x64bitops_flag = -1;
 407                 static SYSCTL_INT(_hw_optional, OID_AUTO, 64bitops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &x64bitops_flag, 0, "");
 408
 409                 if (_cpu_capabilities & k64Bit) {
 410                         x64bitops_flag = 1;
 411                         sysctl_register_oid(&sysctl__hw_optional_64bitops);
 412                 }
 413         }
 414         {
 415                 static int fsqrt_flag = -1;
 416                 static SYSCTL_INT(_hw_optional, OID_AUTO, fsqrt, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &fsqrt_flag, 0, "");
 417
 418                 if (_cpu_capabilities & kHasFsqrt) {
 419                         fsqrt_flag = 1;
 420                         sysctl_register_oid(&sysctl__hw_optional_fsqrt);
 421                 }
 422         }
 423         {
 424                 static int stfiwx_flag = -1;
 425                 static SYSCTL_INT(_hw_optional, OID_AUTO, stfiwx, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &stfiwx_flag, 0, "");
 426
 427                 if (_cpu_capabilities & kHasStfiwx) {
 428                         stfiwx_flag = 1;
 429                         sysctl_register_oid(&sysctl__hw_optional_stfiwx);
 430                 }
 431         }
 432         {
 433                 static int dcba_flag = -1;
 434                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcba, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcba_flag, 0, "");
 435
 436                 if (_cpu_capabilities & kDcbaAvailable)
 437                         dcba_flag = 0;
 438                 if (_cpu_capabilities & kDcbaRecommended)
 439                         dcba_flag = 1;
 440                 if (dcba_flag >= 0)
 441                         sysctl_register_oid(&sysctl__hw_optional_dcba);
 442         }
 443         {
 444                 static int datastreams_flag = -1;
 445                 static SYSCTL_INT(_hw_optional, OID_AUTO, datastreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &datastreams_flag, 0, "");
 446
 447                 if (_cpu_capabilities & kDataStreamsAvailable)
 448                         datastreams_flag = 0;
 449                 if (_cpu_capabilities & kDataStreamsRecommended)
 450                         datastreams_flag = 1;
 451                 if (datastreams_flag >= 0)
 452                         sysctl_register_oid(&sysctl__hw_optional_datastreams);
 453         }
 454         {
 455                 static int dcbtstreams_flag = -1;
 456                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcbtstreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcbtstreams_flag, 0, "");
 457
 458                 if (_cpu_capabilities & kDcbtStreamsAvailable)
 459                         dcbtstreams_flag = 0;
 460                 if (_cpu_capabilities & kDcbtStreamsRecommended)
 461                         dcbtstreams_flag = 1;
 462                 if (dcbtstreams_flag >= 0)
 463                         sysctl_register_oid(&sysctl__hw_optional_dcbtstreams);
 464         }
 465 #else
 466 # warning we do not support this platform yet
 467 #endif /* __ppc__ */
 468
 469
 470 }