bsd/kern/kern_mib.c

   1 /*
   2  * Copyright (c) 2000-2006 Apple Computer, 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 <mach/host_info.h>
 101 #include <kern/pms.h>
 102
 103 extern vm_map_t bsd_pageable_map;
 104
 105 #include <sys/mount_internal.h>
 106 #include <sys/kdebug.h>
 107
 108 #include <IOKit/IOPlatformExpert.h>
 109 #include <pexpert/pexpert.h>
 110
 111 #include <machine/machine_routines.h>
 112 #include <machine/cpu_capabilities.h>
 113
 114 #ifdef __i386__
 115 #include <i386/cpuid.h>         /* for cpuid_info() */
 116 #endif
 117
 118 #ifndef MAX
 119 #define MAX(a,b) (a >= b ? a : b)
 120 #endif
 121
 122 static int      cputype, cpusubtype, cputhreadtype, cpufamily, cacheconfig[10];;
 123
 124 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW, 0,
 125         "Sysctl internal magic");
 126 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW, 0,
 127         "High kernel, proc, limits &c");
 128 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW, 0,
 129         "Virtual memory");
 130 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW, 0,
 131         "File system");
 132 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW, 0,
 133         "Network, (see socket.h)");
 134 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW, 0,
 135         "Debugging");
 136 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW, 0,
 137         "hardware");
 138 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
 139         "machine dependent");
 140 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW, 0,
 141         "user-level");
 142
 143 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 144
 145 /******************************************************************************
 146  * hw.* MIB
 147  */
 148
 149 #define CTLHW_RETQUAD   (1 << 31)
 150 #define CTLHW_LOCAL     (1 << 30)
 151
 152 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 153 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 154 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 155 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 156 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 157
 158
 159 /*
 160  * Supporting some variables requires us to do "real" work.  We
 161  * gather some of that here.
 162  */
 163 static int
 164 sysctl_hw_generic SYSCTL_HANDLER_ARGS
 165 {
 166         char dummy[65];
 167         int  epochTemp;
 168         extern int vm_page_wire_count;
 169         ml_cpu_info_t cpu_info;
 170         int val, doquad;
 171         long long qval;
 172         host_basic_info_data_t hinfo;
 173         kern_return_t kret;
 174         int count = HOST_BASIC_INFO_COUNT;
 175
 176         /*
 177          * Test and mask off the 'return quad' flag.
 178          * Note that only some things here support it.
 179          */
 180         doquad = arg2 & CTLHW_RETQUAD;
 181         arg2 &= ~CTLHW_RETQUAD;
 182
 183         ml_cpu_get_info(&cpu_info);
 184
 185 #define BSD_HOST 1
 186         kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count);
 187
 188         /*
 189          * Handle various OIDs.
 190          *
 191          * OIDs that can return int or quad set val and qval and then break.
 192          * Errors and int-only values return inline.
 193          */
 194         switch (arg2) {
 195         case HW_NCPU:
 196                 if (kret == KERN_SUCCESS) {
 197                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 198                 } else {
 199                         return(EINVAL);
 200                 }
 201         case HW_AVAILCPU:
 202                 if (kret == KERN_SUCCESS) {
 203                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 204                 } else {
 205                         return(EINVAL);
 206                 }
 207         case HW_LOCAL_PHYSICALCPU:
 208                 if (kret == KERN_SUCCESS) {
 209                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 210                 } else {
 211                         return(EINVAL);
 212                 }
 213         case HW_LOCAL_PHYSICALCPUMAX:
 214                 if (kret == KERN_SUCCESS) {
 215                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 216                 } else {
 217                         return(EINVAL);
 218                 }
 219         case HW_LOCAL_LOGICALCPU:
 220                 if (kret == KERN_SUCCESS) {
 221                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 222                 } else {
 223                         return(EINVAL);
 224                 }
 225         case HW_LOCAL_LOGICALCPUMAX:
 226                 if (kret == KERN_SUCCESS) {
 227                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 228                 } else {
 229                         return(EINVAL);
 230                 }
 231         case HW_CACHELINE:
 232                 val = cpu_info.cache_line_size;
 233                 qval = (long long)val;
 234                 break;
 235         case HW_L1ICACHESIZE:
 236                 val = cpu_info.l1_icache_size;
 237                 qval = (long long)val;
 238                 break;
 239         case HW_L1DCACHESIZE:
 240                 val = cpu_info.l1_dcache_size;
 241                 qval = (long long)val;
 242                 break;
 243         case HW_L2CACHESIZE:
 244                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 245                         return(EINVAL);
 246                 val = cpu_info.l2_cache_size;
 247                 qval = (long long)val;
 248                 break;
 249         case HW_L3CACHESIZE:
 250                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 251                         return(EINVAL);
 252                 val = cpu_info.l3_cache_size;
 253                 qval = (long long)val;
 254                 break;
 255
 256                 /*
 257                  * Deprecated variables.  We still support these for
 258                  * backwards compatibility purposes only.
 259                  */
 260         case HW_MACHINE:
 261                 bzero(dummy, sizeof(dummy));
 262                 if(!PEGetMachineName(dummy,64))
 263                         return(EINVAL);
 264                 dummy[64] = 0;
 265                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 266         case HW_MODEL:
 267                 bzero(dummy, sizeof(dummy));
 268                 if(!PEGetModelName(dummy,64))
 269                         return(EINVAL);
 270                 dummy[64] = 0;
 271                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 272         case HW_USERMEM:
 273                 {
 274                 int usermem = mem_size - vm_page_wire_count * page_size;
 275
 276                         return(SYSCTL_RETURN(req, usermem));
 277                 }
 278         case HW_EPOCH:
 279                 epochTemp = PEGetPlatformEpoch();
 280                 if (epochTemp == -1)
 281                         return(EINVAL);
 282                 return(SYSCTL_RETURN(req, epochTemp));
 283         case HW_VECTORUNIT: {
 284                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 285                 return(SYSCTL_RETURN(req, vector));
 286         }
 287         case HW_L2SETTINGS:
 288                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 289                         return(EINVAL);
 290                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 291         case HW_L3SETTINGS:
 292                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 293                         return(EINVAL);
 294                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 295         default:
 296                 return(ENOTSUP);
 297         }
 298         /*
 299          * Callers may come to us with either int or quad buffers.
 300          */
 301         if (doquad) {
 302                 return(SYSCTL_RETURN(req, qval));
 303         }
 304         return(SYSCTL_RETURN(req, val));
 305 }
 306
 307 /*
 308  * hw.* MIB variables.
 309  */
 310 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 311 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 312 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 313 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 314 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 315 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 316 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN, NULL, BYTE_ORDER, "");
 317 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN, &cputype, 0, "");
 318 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN, &cpusubtype, 0, "");
 319 SYSCTL_INT     (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN, &cpufamily, 0, "");
 320 SYSCTL_OPAQUE  (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD, &cacheconfig, sizeof(cacheconfig), "I", "");
 321 SYSCTL_INT2QUAD(_hw, OID_AUTO, pagesize, CTLFLAG_RD | CTLFLAG_KERN, &page_size, "");
 322 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 323 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 324 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 325 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 326 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 327 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 328 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 329 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 330 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 331 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 332 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 333 SYSCTL_INT2QUAD(_hw, OID_AUTO, tbfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.timebase_frequency_hz, "");
 334 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN, &max_mem, "");
 335
 336 /*
 337  * Optional features can register nodes below hw.optional.
 338  *
 339  * If the feature is not present, the node should either not be registered,
 340  * or it should return -1.  If the feature is present, the node should return
 341  * 0.  If the feature is present and its use is advised, the node should
 342  * return 1.
 343  */
 344 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW, NULL, "optional features");
 345
 346 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN, 0, 1, ""); /* always set */
 347
 348 /*
 349  * Deprecated variables.  These are supported for backwards compatibility
 350  * purposes only.  The MASKED flag requests that the variables not be
 351  * printed by sysctl(8) and similar utilities.
 352  *
 353  * The variables named *_compat here are int-sized versions of variables
 354  * that are now exported as quads.  The int-sized versions are normally
 355  * looked up only by number, wheras the quad-sized versions should be
 356  * looked up by name.
 357  *
 358  * The *_compat nodes are *NOT* visible within the kernel.
 359  */
 360 SYSCTL_INT (_hw, HW_PAGESIZE,     pagesize_compat, CTLFLAG_RD | CTLFLAG_MASKED, &page_size, 0, "");
 361 SYSCTL_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 362 SYSCTL_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 363 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 364 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 365 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 366 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 367 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 368 SYSCTL_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 369 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 370 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 371 SYSCTL_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED, &mem_size, 0, "");
 372 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_USERMEM,    sysctl_hw_generic, "I", "");
 373 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 374 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 375 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 376 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 377
 378 /*
 379  * Debugging interface to the CPU power management code.
 380  */
 381 static void pmsSysctl SYSCTL_HANDLER_ARGS {
 382
 383         pmsctl_t        ctl;
 384         int             error;
 385         boolean_t       intr;
 386
 387         if ((error = SYSCTL_IN(req, &ctl, sizeof(ctl))))
 388                 return(error);
 389
 390         intr = ml_set_interrupts_enabled(FALSE);                /* No interruptions in here */
 391         error = pmsControl(ctl.request, (user_addr_t)ctl.reqaddr, ctl.reqsize);
 392         (void)ml_set_interrupts_enabled(intr);                  /* Restore interruptions */
 393
 394         return(error);
 395 }
 396
 397 SYSCTL_PROC(_hw, OID_AUTO, pms, CTLTYPE_STRUCT | CTLFLAG_WR, 0, 0, pmsSysctl, "S", "Processor Power Management");
 398
 399
 400
 401 /******************************************************************************
 402  * Generic MIB initialisation.
 403  *
 404  * This is a hack, and should be replaced with SYSINITs
 405  * at some point.
 406  */
 407 void
 408 sysctl_mib_init(void)
 409 {
 410         cputype = cpu_type();
 411         cpusubtype = cpu_subtype();
 412         cputhreadtype = cpu_threadtype();
 413
 414         /*
 415          * Populate the optional portion of the hw.* MIB.
 416          *
 417          * XXX This could be broken out into parts of the code
 418          *     that actually directly relate to the functions in
 419          *     question.
 420          */
 421
 422         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 423                 static SYSCTL_INT(_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &cputhreadtype, 0, "");
 424                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 425         }
 426
 427 #ifdef __ppc__
 428         {
 429                 static int altivec_flag = -1;
 430                 static SYSCTL_INT(_hw_optional, OID_AUTO, altivec, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &altivec_flag, 0, "");
 431
 432                 if (_cpu_capabilities & kHasAltivec) {
 433                         altivec_flag = 1;
 434                         sysctl_register_oid(&sysctl__hw_optional_altivec);
 435                 }
 436         }
 437         {
 438                 static int graphicsops_flag = -1;
 439                 static SYSCTL_INT(_hw_optional, OID_AUTO, graphicsops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &graphicsops_flag, 0, "");
 440
 441                 if (_cpu_capabilities & kHasGraphicsOps) {
 442                         graphicsops_flag = 1;
 443                         sysctl_register_oid(&sysctl__hw_optional_graphicsops);
 444                 }
 445         }
 446         {
 447                 static int x64bitops_flag = -1;
 448                 static SYSCTL_INT(_hw_optional, OID_AUTO, 64bitops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &x64bitops_flag, 0, "");
 449
 450                 if (_cpu_capabilities & k64Bit) {
 451                         x64bitops_flag = 1;
 452                         sysctl_register_oid(&sysctl__hw_optional_64bitops);
 453                 }
 454         }
 455         {
 456                 static int fsqrt_flag = -1;
 457                 static SYSCTL_INT(_hw_optional, OID_AUTO, fsqrt, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &fsqrt_flag, 0, "");
 458
 459                 if (_cpu_capabilities & kHasFsqrt) {
 460                         fsqrt_flag = 1;
 461                         sysctl_register_oid(&sysctl__hw_optional_fsqrt);
 462                 }
 463         }
 464         {
 465                 static int stfiwx_flag = -1;
 466                 static SYSCTL_INT(_hw_optional, OID_AUTO, stfiwx, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &stfiwx_flag, 0, "");
 467
 468                 if (_cpu_capabilities & kHasStfiwx) {
 469                         stfiwx_flag = 1;
 470                         sysctl_register_oid(&sysctl__hw_optional_stfiwx);
 471                 }
 472         }
 473         {
 474                 static int dcba_flag = -1;
 475                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcba, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcba_flag, 0, "");
 476
 477                 if (_cpu_capabilities & kDcbaAvailable)
 478                         dcba_flag = 0;
 479                 if (_cpu_capabilities & kDcbaRecommended)
 480                         dcba_flag = 1;
 481                 if (dcba_flag >= 0)
 482                         sysctl_register_oid(&sysctl__hw_optional_dcba);
 483         }
 484         {
 485                 static int datastreams_flag = -1;
 486                 static SYSCTL_INT(_hw_optional, OID_AUTO, datastreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &datastreams_flag, 0, "");
 487
 488                 if (_cpu_capabilities & kDataStreamsAvailable)
 489                         datastreams_flag = 0;
 490                 if (_cpu_capabilities & kDataStreamsRecommended)
 491                         datastreams_flag = 1;
 492                 if (datastreams_flag >= 0)
 493                         sysctl_register_oid(&sysctl__hw_optional_datastreams);
 494         }
 495         {
 496                 static int dcbtstreams_flag = -1;
 497                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcbtstreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcbtstreams_flag, 0, "");
 498
 499                 if (_cpu_capabilities & kDcbtStreamsAvailable)
 500                         dcbtstreams_flag = 0;
 501                 if (_cpu_capabilities & kDcbtStreamsRecommended)
 502                         dcbtstreams_flag = 1;
 503                 if (dcbtstreams_flag >= 0)
 504                         sysctl_register_oid(&sysctl__hw_optional_dcbtstreams);
 505         }
 506
 507         /* hw.cpufamily */
 508         switch (cpusubtype) {
 509         case CPU_SUBTYPE_POWERPC_750:
 510                 cpufamily = CPUFAMILY_POWERPC_G3;
 511                 break;
 512         case CPU_SUBTYPE_POWERPC_7400:
 513         case CPU_SUBTYPE_POWERPC_7450:
 514                 cpufamily = CPUFAMILY_POWERPC_G4;
 515                 break;
 516         case CPU_SUBTYPE_POWERPC_970:
 517                 cpufamily = CPUFAMILY_POWERPC_G5;
 518                 break;
 519         default:
 520                 cpufamily = CPUFAMILY_UNKNOWN;
 521         }
 522
 523         /* hw.cacheconfig */
 524         cacheconfig[0] = 0; /* XXX not supported on PowerPC */
 525
 526 #elif defined (__i386__)
 527
 528
 529 #define DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, flags) { \
 530         static int named##_flag = -1;   \
 531         static SYSCTL_INT(_hw_optional, OID_AUTO, named, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | flags, &named##_flag, 0, "");     \
 532         named##_flag = ((_get_cpu_capabilities() & BITS) == BITS)? 1 : 0;       \
 533         sysctl_register_oid(&sysctl__hw_optional_##named);      \
 534         }
 535
 536 #define DECLARE_X86_HW_OPTIONAL(named, BITS) \
 537         DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, 0)
 538
 539 #define DECLARE_X86_HW_OPTIONAL_MASKED(named, BITS) \
 540         DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, CTLFLAG_MASKED)
 541
 542         DECLARE_X86_HW_OPTIONAL(mmx, kHasMMX);
 543         DECLARE_X86_HW_OPTIONAL(sse, kHasSSE);
 544         DECLARE_X86_HW_OPTIONAL(sse2, kHasSSE2);
 545         DECLARE_X86_HW_OPTIONAL(sse3, kHasSSE3);
 546         if (_get_cpu_capabilities() & k64Bit)
 547                 DECLARE_X86_HW_OPTIONAL(x86_64, k64Bit);
 548         if (_get_cpu_capabilities() & kHasSupplementalSSE3) {
 549                 DECLARE_X86_HW_OPTIONAL_MASKED(mni, kHasSupplementalSSE3); /* XXX */
 550                 DECLARE_X86_HW_OPTIONAL(supplementalsse3, kHasSupplementalSSE3);
 551         }
 552
 553         /* hw.cpufamily */
 554         switch (cpuid_info()->cpuid_family) {
 555         case 6:
 556                 switch (cpuid_info()->cpuid_model) {
 557                 case 14:
 558                         cpufamily = CPUFAMILY_INTEL_6_14; /* Core Solo/Duo */
 559                         break;
 560                 case 15:
 561                         cpufamily = CPUFAMILY_INTEL_6_15;
 562                         break;
 563                 default:
 564                         cpufamily = CPUFAMILY_UNKNOWN;
 565                 }
 566                 break;
 567         default:
 568                 cpufamily = CPUFAMILY_UNKNOWN;
 569         }
 570         /* hw.cacheconfig */
 571         cacheconfig[0] = cpuid_info()->cpuid_cores_per_package;
 572         cacheconfig[1] = MAX(cpuid_info()->cache_sharing[L1I], cpuid_info()->cache_sharing[L1D]);
 573         cacheconfig[2] = cpuid_info()->cache_sharing[L2U];
 574         cacheconfig[3] = cpuid_info()->cache_sharing[L3U];
 575         cacheconfig[4] = 0;
 576
 577 #else /* end __i386 */
 578 # warning we do not support this platform yet
 579 #endif /* __ppc__ */
 580
 581
 582 }