bsd/kern/kern_mib.c

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*-
  23  * Copyright (c) 1982, 1986, 1989, 1993
  24  *      The Regents of the University of California.  All rights reserved.
  25  *
  26  * This code is derived from software contributed to Berkeley by
  27  * Mike Karels at Berkeley Software Design, Inc.
  28  *
  29  * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD
  30  * project, to make these variables more userfriendly.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)kern_sysctl.c       8.4 (Berkeley) 4/14/94
  61  */
  62
  63 #include <sys/param.h>
  64 #include <sys/kernel.h>
  65 #include <sys/systm.h>
  66 #include <sys/sysctl.h>
  67 #include <sys/proc_internal.h>
  68 #include <sys/unistd.h>
  69
  70 #if defined(SMP)
  71 #include <machine/smp.h>
  72 #endif
  73
  74 #include <sys/param.h>  /* XXX prune includes */
  75 #include <sys/systm.h>
  76 #include <sys/kernel.h>
  77 #include <sys/malloc.h>
  78 #include <sys/proc.h>
  79 #include <sys/file_internal.h>
  80 #include <sys/vnode.h>
  81 #include <sys/unistd.h>
  82 #include <sys/ioctl.h>
  83 #include <sys/namei.h>
  84 #include <sys/tty.h>
  85 #include <sys/disklabel.h>
  86 #include <sys/vm.h>
  87 #include <sys/sysctl.h>
  88 #include <sys/user.h>
  89 #include <mach/machine.h>
  90 #include <mach/mach_types.h>
  91 #include <mach/vm_param.h>
  92 #include <kern/task.h>
  93 #include <vm/vm_kern.h>
  94 #include <mach/host_info.h>
  95 #include <kern/pms.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 #ifdef __i386__
 109 #include <i386/cpuid.h>         /* for cpuid_info() */
 110 #endif
 111
 112 #ifndef MAX
 113 #define MAX(a,b) (a >= b ? a : b)
 114 #endif
 115
 116 static int      cputype, cpusubtype, cputhreadtype, cpufamily, cacheconfig[10];;
 117
 118 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW, 0,
 119         "Sysctl internal magic");
 120 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW, 0,
 121         "High kernel, proc, limits &c");
 122 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW, 0,
 123         "Virtual memory");
 124 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW, 0,
 125         "File system");
 126 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW, 0,
 127         "Network, (see socket.h)");
 128 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW, 0,
 129         "Debugging");
 130 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW, 0,
 131         "hardware");
 132 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
 133         "machine dependent");
 134 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW, 0,
 135         "user-level");
 136
 137 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 138
 139 /******************************************************************************
 140  * hw.* MIB
 141  */
 142
 143 #define CTLHW_RETQUAD   (1 << 31)
 144 #define CTLHW_LOCAL     (1 << 30)
 145
 146 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 147 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 148 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 149 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 150 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 151
 152
 153 /*
 154  * Supporting some variables requires us to do "real" work.  We
 155  * gather some of that here.
 156  */
 157 static int
 158 sysctl_hw_generic SYSCTL_HANDLER_ARGS
 159 {
 160         char dummy[65];
 161         int  epochTemp;
 162         extern int vm_page_wire_count;
 163         ml_cpu_info_t cpu_info;
 164         int val, doquad;
 165         long long qval;
 166         host_basic_info_data_t hinfo;
 167         kern_return_t kret;
 168         int count = HOST_BASIC_INFO_COUNT;
 169
 170         /*
 171          * Test and mask off the 'return quad' flag.
 172          * Note that only some things here support it.
 173          */
 174         doquad = arg2 & CTLHW_RETQUAD;
 175         arg2 &= ~CTLHW_RETQUAD;
 176
 177         ml_cpu_get_info(&cpu_info);
 178
 179 #define BSD_HOST 1
 180         kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count);
 181
 182         /*
 183          * Handle various OIDs.
 184          *
 185          * OIDs that can return int or quad set val and qval and then break.
 186          * Errors and int-only values return inline.
 187          */
 188         switch (arg2) {
 189         case HW_NCPU:
 190                 if (kret == KERN_SUCCESS) {
 191                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 192                 } else {
 193                         return(EINVAL);
 194                 }
 195         case HW_AVAILCPU:
 196                 if (kret == KERN_SUCCESS) {
 197                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 198                 } else {
 199                         return(EINVAL);
 200                 }
 201         case HW_LOCAL_PHYSICALCPU:
 202                 if (kret == KERN_SUCCESS) {
 203                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 204                 } else {
 205                         return(EINVAL);
 206                 }
 207         case HW_LOCAL_PHYSICALCPUMAX:
 208                 if (kret == KERN_SUCCESS) {
 209                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 210                 } else {
 211                         return(EINVAL);
 212                 }
 213         case HW_LOCAL_LOGICALCPU:
 214                 if (kret == KERN_SUCCESS) {
 215                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 216                 } else {
 217                         return(EINVAL);
 218                 }
 219         case HW_LOCAL_LOGICALCPUMAX:
 220                 if (kret == KERN_SUCCESS) {
 221                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 222                 } else {
 223                         return(EINVAL);
 224                 }
 225         case HW_CACHELINE:
 226                 val = cpu_info.cache_line_size;
 227                 qval = (long long)val;
 228                 break;
 229         case HW_L1ICACHESIZE:
 230                 val = cpu_info.l1_icache_size;
 231                 qval = (long long)val;
 232                 break;
 233         case HW_L1DCACHESIZE:
 234                 val = cpu_info.l1_dcache_size;
 235                 qval = (long long)val;
 236                 break;
 237         case HW_L2CACHESIZE:
 238                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 239                         return(EINVAL);
 240                 val = cpu_info.l2_cache_size;
 241                 qval = (long long)val;
 242                 break;
 243         case HW_L3CACHESIZE:
 244                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 245                         return(EINVAL);
 246                 val = cpu_info.l3_cache_size;
 247                 qval = (long long)val;
 248                 break;
 249
 250                 /*
 251                  * Deprecated variables.  We still support these for
 252                  * backwards compatibility purposes only.
 253                  */
 254         case HW_MACHINE:
 255                 bzero(dummy, sizeof(dummy));
 256                 if(!PEGetMachineName(dummy,64))
 257                         return(EINVAL);
 258                 dummy[64] = 0;
 259                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 260         case HW_MODEL:
 261                 bzero(dummy, sizeof(dummy));
 262                 if(!PEGetModelName(dummy,64))
 263                         return(EINVAL);
 264                 dummy[64] = 0;
 265                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 266         case HW_USERMEM:
 267                 {
 268                 int usermem = mem_size - vm_page_wire_count * page_size;
 269
 270                         return(SYSCTL_RETURN(req, usermem));
 271                 }
 272         case HW_EPOCH:
 273                 epochTemp = PEGetPlatformEpoch();
 274                 if (epochTemp == -1)
 275                         return(EINVAL);
 276                 return(SYSCTL_RETURN(req, epochTemp));
 277         case HW_VECTORUNIT: {
 278                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 279                 return(SYSCTL_RETURN(req, vector));
 280         }
 281         case HW_L2SETTINGS:
 282                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 283                         return(EINVAL);
 284                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 285         case HW_L3SETTINGS:
 286                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 287                         return(EINVAL);
 288                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 289         default:
 290                 return(ENOTSUP);
 291         }
 292         /*
 293          * Callers may come to us with either int or quad buffers.
 294          */
 295         if (doquad) {
 296                 return(SYSCTL_RETURN(req, qval));
 297         }
 298         return(SYSCTL_RETURN(req, val));
 299 }
 300
 301 /*
 302  * hw.* MIB variables.
 303  */
 304 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 305 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 306 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 307 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 308 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 309 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 310 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN, NULL, BYTE_ORDER, "");
 311 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN, &cputype, 0, "");
 312 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN, &cpusubtype, 0, "");
 313 SYSCTL_INT     (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN, &cpufamily, 0, "");
 314 SYSCTL_OPAQUE  (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD, &cacheconfig, sizeof(cacheconfig), "I", "");
 315 SYSCTL_INT2QUAD(_hw, OID_AUTO, pagesize, CTLFLAG_RD | CTLFLAG_KERN, &page_size, "");
 316 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 317 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 318 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 319 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 320 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 321 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 322 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 323 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 324 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 325 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 326 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 327 SYSCTL_INT2QUAD(_hw, OID_AUTO, tbfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.timebase_frequency_hz, "");
 328 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN, &max_mem, "");
 329
 330 /*
 331  * Optional features can register nodes below hw.optional.
 332  *
 333  * If the feature is not present, the node should either not be registered,
 334  * or it should return -1.  If the feature is present, the node should return
 335  * 0.  If the feature is present and its use is advised, the node should
 336  * return 1.
 337  */
 338 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW, NULL, "optional features");
 339
 340 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN, 0, 1, ""); /* always set */
 341
 342 /*
 343  * Deprecated variables.  These are supported for backwards compatibility
 344  * purposes only.  The MASKED flag requests that the variables not be
 345  * printed by sysctl(8) and similar utilities.
 346  *
 347  * The variables named *_compat here are int-sized versions of variables
 348  * that are now exported as quads.  The int-sized versions are normally
 349  * looked up only by number, wheras the quad-sized versions should be
 350  * looked up by name.
 351  *
 352  * The *_compat nodes are *NOT* visible within the kernel.
 353  */
 354 SYSCTL_INT (_hw, HW_PAGESIZE,     pagesize_compat, CTLFLAG_RD | CTLFLAG_MASKED, &page_size, 0, "");
 355 SYSCTL_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 356 SYSCTL_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 357 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 358 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 359 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 360 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 361 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 362 SYSCTL_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 363 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 364 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 365 SYSCTL_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED, &mem_size, 0, "");
 366 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_USERMEM,    sysctl_hw_generic, "I", "");
 367 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 368 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 369 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 370 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 371
 372 /*
 373  * Debugging interface to the CPU power management code.
 374  */
 375 static void pmsSysctl SYSCTL_HANDLER_ARGS {
 376
 377         pmsctl_t        ctl;
 378         int             error;
 379         boolean_t       intr;
 380
 381         if ((error = SYSCTL_IN(req, &ctl, sizeof(ctl))))
 382                 return(error);
 383
 384         intr = ml_set_interrupts_enabled(FALSE);                /* No interruptions in here */
 385         error = pmsControl(ctl.request, (user_addr_t)ctl.reqaddr, ctl.reqsize);
 386         (void)ml_set_interrupts_enabled(intr);                  /* Restore interruptions */
 387
 388         return(error);
 389 }
 390
 391 SYSCTL_PROC(_hw, OID_AUTO, pms, CTLTYPE_STRUCT | CTLFLAG_WR, 0, 0, pmsSysctl, "S", "Processor Power Management");
 392
 393
 394
 395 /******************************************************************************
 396  * Generic MIB initialisation.
 397  *
 398  * This is a hack, and should be replaced with SYSINITs
 399  * at some point.
 400  */
 401 void
 402 sysctl_mib_init(void)
 403 {
 404         cputype = cpu_type();
 405         cpusubtype = cpu_subtype();
 406         cputhreadtype = cpu_threadtype();
 407
 408         /*
 409          * Populate the optional portion of the hw.* MIB.
 410          *
 411          * XXX This could be broken out into parts of the code
 412          *     that actually directly relate to the functions in
 413          *     question.
 414          */
 415
 416         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 417                 static SYSCTL_INT(_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &cputhreadtype, 0, "");
 418                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 419         }
 420
 421 #ifdef __ppc__
 422         {
 423                 static int altivec_flag = -1;
 424                 static SYSCTL_INT(_hw_optional, OID_AUTO, altivec, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &altivec_flag, 0, "");
 425
 426                 if (_cpu_capabilities & kHasAltivec) {
 427                         altivec_flag = 1;
 428                         sysctl_register_oid(&sysctl__hw_optional_altivec);
 429                 }
 430         }
 431         {
 432                 static int graphicsops_flag = -1;
 433                 static SYSCTL_INT(_hw_optional, OID_AUTO, graphicsops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &graphicsops_flag, 0, "");
 434
 435                 if (_cpu_capabilities & kHasGraphicsOps) {
 436                         graphicsops_flag = 1;
 437                         sysctl_register_oid(&sysctl__hw_optional_graphicsops);
 438                 }
 439         }
 440         {
 441                 static int x64bitops_flag = -1;
 442                 static SYSCTL_INT(_hw_optional, OID_AUTO, 64bitops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &x64bitops_flag, 0, "");
 443
 444                 if (_cpu_capabilities & k64Bit) {
 445                         x64bitops_flag = 1;
 446                         sysctl_register_oid(&sysctl__hw_optional_64bitops);
 447                 }
 448         }
 449         {
 450                 static int fsqrt_flag = -1;
 451                 static SYSCTL_INT(_hw_optional, OID_AUTO, fsqrt, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &fsqrt_flag, 0, "");
 452
 453                 if (_cpu_capabilities & kHasFsqrt) {
 454                         fsqrt_flag = 1;
 455                         sysctl_register_oid(&sysctl__hw_optional_fsqrt);
 456                 }
 457         }
 458         {
 459                 static int stfiwx_flag = -1;
 460                 static SYSCTL_INT(_hw_optional, OID_AUTO, stfiwx, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &stfiwx_flag, 0, "");
 461
 462                 if (_cpu_capabilities & kHasStfiwx) {
 463                         stfiwx_flag = 1;
 464                         sysctl_register_oid(&sysctl__hw_optional_stfiwx);
 465                 }
 466         }
 467         {
 468                 static int dcba_flag = -1;
 469                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcba, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcba_flag, 0, "");
 470
 471                 if (_cpu_capabilities & kDcbaAvailable)
 472                         dcba_flag = 0;
 473                 if (_cpu_capabilities & kDcbaRecommended)
 474                         dcba_flag = 1;
 475                 if (dcba_flag >= 0)
 476                         sysctl_register_oid(&sysctl__hw_optional_dcba);
 477         }
 478         {
 479                 static int datastreams_flag = -1;
 480                 static SYSCTL_INT(_hw_optional, OID_AUTO, datastreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &datastreams_flag, 0, "");
 481
 482                 if (_cpu_capabilities & kDataStreamsAvailable)
 483                         datastreams_flag = 0;
 484                 if (_cpu_capabilities & kDataStreamsRecommended)
 485                         datastreams_flag = 1;
 486                 if (datastreams_flag >= 0)
 487                         sysctl_register_oid(&sysctl__hw_optional_datastreams);
 488         }
 489         {
 490                 static int dcbtstreams_flag = -1;
 491                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcbtstreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcbtstreams_flag, 0, "");
 492
 493                 if (_cpu_capabilities & kDcbtStreamsAvailable)
 494                         dcbtstreams_flag = 0;
 495                 if (_cpu_capabilities & kDcbtStreamsRecommended)
 496                         dcbtstreams_flag = 1;
 497                 if (dcbtstreams_flag >= 0)
 498                         sysctl_register_oid(&sysctl__hw_optional_dcbtstreams);
 499         }
 500
 501         /* hw.cpufamily */
 502         switch (cpusubtype) {
 503         case CPU_SUBTYPE_POWERPC_750:
 504                 cpufamily = CPUFAMILY_POWERPC_G3;
 505                 break;
 506         case CPU_SUBTYPE_POWERPC_7400:
 507         case CPU_SUBTYPE_POWERPC_7450:
 508                 cpufamily = CPUFAMILY_POWERPC_G4;
 509                 break;
 510         case CPU_SUBTYPE_POWERPC_970:
 511                 cpufamily = CPUFAMILY_POWERPC_G5;
 512                 break;
 513         default:
 514                 cpufamily = CPUFAMILY_UNKNOWN;
 515         }
 516
 517         /* hw.cacheconfig */
 518         cacheconfig[0] = 0; /* XXX not supported on PowerPC */
 519
 520 #elif defined (__i386__)
 521
 522
 523 #define DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, flags) { \
 524         static int named##_flag = -1;   \
 525         static SYSCTL_INT(_hw_optional, OID_AUTO, named, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | flags, &named##_flag, 0, "");     \
 526         named##_flag = ((_get_cpu_capabilities() & BITS) == BITS)? 1 : 0;       \
 527         sysctl_register_oid(&sysctl__hw_optional_##named);      \
 528         }
 529
 530 #define DECLARE_X86_HW_OPTIONAL(named, BITS) \
 531         DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, 0)
 532
 533 #define DECLARE_X86_HW_OPTIONAL_MASKED(named, BITS) \
 534         DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, CTLFLAG_MASKED)
 535
 536         DECLARE_X86_HW_OPTIONAL(mmx, kHasMMX);
 537         DECLARE_X86_HW_OPTIONAL(sse, kHasSSE);
 538         DECLARE_X86_HW_OPTIONAL(sse2, kHasSSE2);
 539         DECLARE_X86_HW_OPTIONAL(sse3, kHasSSE3);
 540         if (_get_cpu_capabilities() & k64Bit)
 541                 DECLARE_X86_HW_OPTIONAL(x86_64, k64Bit);
 542         if (_get_cpu_capabilities() & kHasSupplementalSSE3) {
 543                 DECLARE_X86_HW_OPTIONAL_MASKED(mni, kHasSupplementalSSE3); /* XXX */
 544                 DECLARE_X86_HW_OPTIONAL(supplementalsse3, kHasSupplementalSSE3);
 545         }
 546
 547         /* hw.cpufamily */
 548         switch (cpuid_info()->cpuid_family) {
 549         case 6:
 550                 switch (cpuid_info()->cpuid_model) {
 551                 case 14:
 552                         cpufamily = CPUFAMILY_INTEL_6_14; /* Core Solo/Duo */
 553                         break;
 554                 case 15:
 555                         cpufamily = CPUFAMILY_INTEL_6_15;
 556                         break;
 557                 default:
 558                         cpufamily = CPUFAMILY_UNKNOWN;
 559                 }
 560                 break;
 561         default:
 562                 cpufamily = CPUFAMILY_UNKNOWN;
 563         }
 564         /* hw.cacheconfig */
 565         cacheconfig[0] = cpuid_info()->cpuid_cores_per_package;
 566         cacheconfig[1] = MAX(cpuid_info()->cache_sharing[L1I], cpuid_info()->cache_sharing[L1D]);
 567         cacheconfig[2] = cpuid_info()->cache_sharing[L2U];
 568         cacheconfig[3] = cpuid_info()->cache_sharing[L3U];
 569         cacheconfig[4] = 0;
 570
 571 #else /* end __i386 */
 572 # warning we do not support this platform yet
 573 #endif /* __ppc__ */
 574
 575
 576 }