bsd/kern/kern_mib.c

   1 /*
   2  * Copyright (c) 2000-2006 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 #include <kern/pms.h>
 104
 105 extern vm_map_t bsd_pageable_map;
 106
 107 #include <sys/mount_internal.h>
 108 #include <sys/kdebug.h>
 109
 110 #include <IOKit/IOPlatformExpert.h>
 111 #include <pexpert/pexpert.h>
 112
 113 #include <machine/machine_routines.h>
 114 #include <machine/cpu_capabilities.h>
 115
 116 #ifdef __i386__
 117 #include <i386/cpuid.h>         /* for cpuid_info() */
 118 #endif
 119
 120 #ifndef MAX
 121 #define MAX(a,b) (a >= b ? a : b)
 122 #endif
 123
 124 static int      cputype, cpusubtype, cputhreadtype, cpufamily, cacheconfig[10];;
 125
 126 SYSCTL_NODE(, 0,          sysctl, CTLFLAG_RW, 0,
 127         "Sysctl internal magic");
 128 SYSCTL_NODE(, CTL_KERN,   kern,   CTLFLAG_RW, 0,
 129         "High kernel, proc, limits &c");
 130 SYSCTL_NODE(, CTL_VM,     vm,     CTLFLAG_RW, 0,
 131         "Virtual memory");
 132 SYSCTL_NODE(, CTL_VFS,    vfs,     CTLFLAG_RW, 0,
 133         "File system");
 134 SYSCTL_NODE(, CTL_NET,    net,    CTLFLAG_RW, 0,
 135         "Network, (see socket.h)");
 136 SYSCTL_NODE(, CTL_DEBUG,  debug,  CTLFLAG_RW, 0,
 137         "Debugging");
 138 SYSCTL_NODE(, CTL_HW,     hw,     CTLFLAG_RW, 0,
 139         "hardware");
 140 SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
 141         "machine dependent");
 142 SYSCTL_NODE(, CTL_USER,   user,   CTLFLAG_RW, 0,
 143         "user-level");
 144
 145 #define SYSCTL_RETURN(r, x)     SYSCTL_OUT(r, &x, sizeof(x))
 146
 147 /******************************************************************************
 148  * hw.* MIB
 149  */
 150
 151 #define CTLHW_RETQUAD   (1 << 31)
 152 #define CTLHW_LOCAL     (1 << 30)
 153
 154 #define HW_LOCAL_CPUTHREADTYPE  (1 | CTLHW_LOCAL)
 155 #define HW_LOCAL_PHYSICALCPU    (2 | CTLHW_LOCAL)
 156 #define HW_LOCAL_PHYSICALCPUMAX (3 | CTLHW_LOCAL)
 157 #define HW_LOCAL_LOGICALCPU     (4 | CTLHW_LOCAL)
 158 #define HW_LOCAL_LOGICALCPUMAX  (5 | CTLHW_LOCAL)
 159
 160
 161 /*
 162  * Supporting some variables requires us to do "real" work.  We
 163  * gather some of that here.
 164  */
 165 static int
 166 sysctl_hw_generic SYSCTL_HANDLER_ARGS
 167 {
 168         char dummy[65];
 169         int  epochTemp;
 170         extern int vm_page_wire_count;
 171         ml_cpu_info_t cpu_info;
 172         int val, doquad;
 173         long long qval;
 174         host_basic_info_data_t hinfo;
 175         kern_return_t kret;
 176         int count = HOST_BASIC_INFO_COUNT;
 177
 178         /*
 179          * Test and mask off the 'return quad' flag.
 180          * Note that only some things here support it.
 181          */
 182         doquad = arg2 & CTLHW_RETQUAD;
 183         arg2 &= ~CTLHW_RETQUAD;
 184
 185         ml_cpu_get_info(&cpu_info);
 186
 187 #define BSD_HOST 1
 188         kret = host_info(BSD_HOST, HOST_BASIC_INFO, &hinfo, &count);
 189
 190         /*
 191          * Handle various OIDs.
 192          *
 193          * OIDs that can return int or quad set val and qval and then break.
 194          * Errors and int-only values return inline.
 195          */
 196         switch (arg2) {
 197         case HW_NCPU:
 198                 if (kret == KERN_SUCCESS) {
 199                         return(SYSCTL_RETURN(req, hinfo.max_cpus));
 200                 } else {
 201                         return(EINVAL);
 202                 }
 203         case HW_AVAILCPU:
 204                 if (kret == KERN_SUCCESS) {
 205                         return(SYSCTL_RETURN(req, hinfo.avail_cpus));
 206                 } else {
 207                         return(EINVAL);
 208                 }
 209         case HW_LOCAL_PHYSICALCPU:
 210                 if (kret == KERN_SUCCESS) {
 211                         return(SYSCTL_RETURN(req, hinfo.physical_cpu));
 212                 } else {
 213                         return(EINVAL);
 214                 }
 215         case HW_LOCAL_PHYSICALCPUMAX:
 216                 if (kret == KERN_SUCCESS) {
 217                         return(SYSCTL_RETURN(req, hinfo.physical_cpu_max));
 218                 } else {
 219                         return(EINVAL);
 220                 }
 221         case HW_LOCAL_LOGICALCPU:
 222                 if (kret == KERN_SUCCESS) {
 223                         return(SYSCTL_RETURN(req, hinfo.logical_cpu));
 224                 } else {
 225                         return(EINVAL);
 226                 }
 227         case HW_LOCAL_LOGICALCPUMAX:
 228                 if (kret == KERN_SUCCESS) {
 229                         return(SYSCTL_RETURN(req, hinfo.logical_cpu_max));
 230                 } else {
 231                         return(EINVAL);
 232                 }
 233         case HW_CACHELINE:
 234                 val = cpu_info.cache_line_size;
 235                 qval = (long long)val;
 236                 break;
 237         case HW_L1ICACHESIZE:
 238                 val = cpu_info.l1_icache_size;
 239                 qval = (long long)val;
 240                 break;
 241         case HW_L1DCACHESIZE:
 242                 val = cpu_info.l1_dcache_size;
 243                 qval = (long long)val;
 244                 break;
 245         case HW_L2CACHESIZE:
 246                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 247                         return(EINVAL);
 248                 val = cpu_info.l2_cache_size;
 249                 qval = (long long)val;
 250                 break;
 251         case HW_L3CACHESIZE:
 252                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 253                         return(EINVAL);
 254                 val = cpu_info.l3_cache_size;
 255                 qval = (long long)val;
 256                 break;
 257
 258                 /*
 259                  * Deprecated variables.  We still support these for
 260                  * backwards compatibility purposes only.
 261                  */
 262         case HW_MACHINE:
 263                 bzero(dummy, sizeof(dummy));
 264                 if(!PEGetMachineName(dummy,64))
 265                         return(EINVAL);
 266                 dummy[64] = 0;
 267                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 268         case HW_MODEL:
 269                 bzero(dummy, sizeof(dummy));
 270                 if(!PEGetModelName(dummy,64))
 271                         return(EINVAL);
 272                 dummy[64] = 0;
 273                 return(SYSCTL_OUT(req, dummy, strlen(dummy) + 1));
 274         case HW_USERMEM:
 275                 {
 276                 int usermem = mem_size - vm_page_wire_count * page_size;
 277
 278                         return(SYSCTL_RETURN(req, usermem));
 279                 }
 280         case HW_EPOCH:
 281                 epochTemp = PEGetPlatformEpoch();
 282                 if (epochTemp == -1)
 283                         return(EINVAL);
 284                 return(SYSCTL_RETURN(req, epochTemp));
 285         case HW_VECTORUNIT: {
 286                 int vector = cpu_info.vector_unit == 0? 0 : 1;
 287                 return(SYSCTL_RETURN(req, vector));
 288         }
 289         case HW_L2SETTINGS:
 290                 if (cpu_info.l2_cache_size == 0xFFFFFFFF)
 291                         return(EINVAL);
 292                 return(SYSCTL_RETURN(req, cpu_info.l2_settings));
 293         case HW_L3SETTINGS:
 294                 if (cpu_info.l3_cache_size == 0xFFFFFFFF)
 295                         return(EINVAL);
 296                 return(SYSCTL_RETURN(req, cpu_info.l3_settings));
 297         default:
 298                 return(ENOTSUP);
 299         }
 300         /*
 301          * Callers may come to us with either int or quad buffers.
 302          */
 303         if (doquad) {
 304                 return(SYSCTL_RETURN(req, qval));
 305         }
 306         return(SYSCTL_RETURN(req, val));
 307 }
 308
 309 /*
 310  * hw.* MIB variables.
 311  */
 312 SYSCTL_PROC    (_hw, HW_NCPU, ncpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_NCPU, sysctl_hw_generic, "I", "");
 313 SYSCTL_PROC    (_hw, HW_AVAILCPU, activecpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_AVAILCPU, sysctl_hw_generic, "I", "");
 314 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPU, sysctl_hw_generic, "I", "");
 315 SYSCTL_PROC    (_hw, OID_AUTO, physicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_PHYSICALCPUMAX, sysctl_hw_generic, "I", "");
 316 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPU, sysctl_hw_generic, "I", "");
 317 SYSCTL_PROC    (_hw, OID_AUTO, logicalcpu_max, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_LOCAL_LOGICALCPUMAX, sysctl_hw_generic, "I", "");
 318 SYSCTL_INT     (_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD | CTLFLAG_KERN, NULL, BYTE_ORDER, "");
 319 SYSCTL_INT     (_hw, OID_AUTO, cputype, CTLFLAG_RD | CTLFLAG_KERN, &cputype, 0, "");
 320 SYSCTL_INT     (_hw, OID_AUTO, cpusubtype, CTLFLAG_RD | CTLFLAG_KERN, &cpusubtype, 0, "");
 321 SYSCTL_INT     (_hw, OID_AUTO, cpufamily, CTLFLAG_RD | CTLFLAG_KERN, &cpufamily, 0, "");
 322 SYSCTL_OPAQUE  (_hw, OID_AUTO, cacheconfig, CTLFLAG_RD, &cacheconfig, sizeof(cacheconfig), "I", "");
 323 SYSCTL_INT2QUAD(_hw, OID_AUTO, pagesize, CTLFLAG_RD | CTLFLAG_KERN, &page_size, "");
 324 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_hz, "");
 325 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_min_hz, "");
 326 SYSCTL_QUAD    (_hw, OID_AUTO, busfrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.bus_frequency_max_hz, "");
 327 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_hz, "");
 328 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_min, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_min_hz, "");
 329 SYSCTL_QUAD    (_hw, OID_AUTO, cpufrequency_max, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.cpu_frequency_max_hz, "");
 330 SYSCTL_PROC    (_hw, OID_AUTO, cachelinesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_CACHELINE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 331 SYSCTL_PROC    (_hw, OID_AUTO, l1icachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1ICACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 332 SYSCTL_PROC    (_hw, OID_AUTO, l1dcachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L1DCACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 333 SYSCTL_PROC    (_hw, OID_AUTO, l2cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L2CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 334 SYSCTL_PROC    (_hw, OID_AUTO, l3cachesize, CTLTYPE_QUAD | CTLFLAG_RD | CTLFLAG_KERN, 0, HW_L3CACHESIZE | CTLHW_RETQUAD, sysctl_hw_generic, "Q", "");
 335 SYSCTL_INT2QUAD(_hw, OID_AUTO, tbfrequency, CTLFLAG_RD | CTLFLAG_KERN, &gPEClockFrequencyInfo.timebase_frequency_hz, "");
 336 SYSCTL_QUAD    (_hw, HW_MEMSIZE, memsize, CTLFLAG_RD | CTLFLAG_KERN, &max_mem, "");
 337
 338 /*
 339  * Optional features can register nodes below hw.optional.
 340  *
 341  * If the feature is not present, the node should either not be registered,
 342  * or it should return -1.  If the feature is present, the node should return
 343  * 0.  If the feature is present and its use is advised, the node should
 344  * return 1.
 345  */
 346 SYSCTL_NODE(_hw, OID_AUTO, optional, CTLFLAG_RW, NULL, "optional features");
 347
 348 SYSCTL_INT(_hw_optional, OID_AUTO, floatingpoint, CTLFLAG_RD | CTLFLAG_KERN, 0, 1, ""); /* always set */
 349
 350 /*
 351  * Deprecated variables.  These are supported for backwards compatibility
 352  * purposes only.  The MASKED flag requests that the variables not be
 353  * printed by sysctl(8) and similar utilities.
 354  *
 355  * The variables named *_compat here are int-sized versions of variables
 356  * that are now exported as quads.  The int-sized versions are normally
 357  * looked up only by number, wheras the quad-sized versions should be
 358  * looked up by name.
 359  *
 360  * The *_compat nodes are *NOT* visible within the kernel.
 361  */
 362 SYSCTL_INT (_hw, HW_PAGESIZE,     pagesize_compat, CTLFLAG_RD | CTLFLAG_MASKED, &page_size, 0, "");
 363 SYSCTL_INT (_hw, HW_BUS_FREQ,     busfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.bus_clock_rate_hz, 0, "");
 364 SYSCTL_INT (_hw, HW_CPU_FREQ,     cpufrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.cpu_clock_rate_hz, 0, "");
 365 SYSCTL_PROC(_hw, HW_CACHELINE,    cachelinesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_CACHELINE, sysctl_hw_generic, "I", "");
 366 SYSCTL_PROC(_hw, HW_L1ICACHESIZE, l1icachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1ICACHESIZE, sysctl_hw_generic, "I", "");
 367 SYSCTL_PROC(_hw, HW_L1DCACHESIZE, l1dcachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L1DCACHESIZE, sysctl_hw_generic, "I", "");
 368 SYSCTL_PROC(_hw, HW_L2CACHESIZE,  l2cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2CACHESIZE, sysctl_hw_generic, "I", "");
 369 SYSCTL_PROC(_hw, HW_L3CACHESIZE,  l3cachesize_compat, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3CACHESIZE, sysctl_hw_generic, "I", "");
 370 SYSCTL_INT (_hw, HW_TB_FREQ,      tbfrequency_compat, CTLFLAG_RD | CTLFLAG_MASKED, &gPEClockFrequencyInfo.timebase_frequency_hz, 0, "");
 371 SYSCTL_PROC(_hw, HW_MACHINE,      machine, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MACHINE, sysctl_hw_generic, "A", "");
 372 SYSCTL_PROC(_hw, HW_MODEL,        model, CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_MODEL, sysctl_hw_generic, "A", "");
 373 SYSCTL_UINT(_hw, HW_PHYSMEM,      physmem, CTLFLAG_RD | CTLFLAG_MASKED, &mem_size, 0, "");
 374 SYSCTL_PROC(_hw, HW_USERMEM,      usermem, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_USERMEM,    sysctl_hw_generic, "I", "");
 375 SYSCTL_PROC(_hw, HW_EPOCH,        epoch, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_EPOCH, sysctl_hw_generic, "I", "");
 376 SYSCTL_PROC(_hw, HW_VECTORUNIT,   vectorunit, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_VECTORUNIT, sysctl_hw_generic, "I", "");
 377 SYSCTL_PROC(_hw, HW_L2SETTINGS,   l2settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L2SETTINGS, sysctl_hw_generic, "I", "");
 378 SYSCTL_PROC(_hw, HW_L3SETTINGS,   l3settings, CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MASKED, 0, HW_L3SETTINGS, sysctl_hw_generic, "I", "");
 379
 380 /*
 381  * Debugging interface to the CPU power management code.
 382  */
 383 static void pmsSysctl SYSCTL_HANDLER_ARGS {
 384
 385         pmsctl_t        ctl;
 386         int             error;
 387         boolean_t       intr;
 388
 389         if ((error = SYSCTL_IN(req, &ctl, sizeof(ctl))))
 390                 return(error);
 391
 392         intr = ml_set_interrupts_enabled(FALSE);                /* No interruptions in here */
 393         error = pmsControl(ctl.request, (user_addr_t)ctl.reqaddr, ctl.reqsize);
 394         (void)ml_set_interrupts_enabled(intr);                  /* Restore interruptions */
 395
 396         return(error);
 397 }
 398
 399 SYSCTL_PROC(_hw, OID_AUTO, pms, CTLTYPE_STRUCT | CTLFLAG_WR, 0, 0, pmsSysctl, "S", "Processor Power Management");
 400
 401
 402
 403 /******************************************************************************
 404  * Generic MIB initialisation.
 405  *
 406  * This is a hack, and should be replaced with SYSINITs
 407  * at some point.
 408  */
 409 void
 410 sysctl_mib_init(void)
 411 {
 412         cputype = cpu_type();
 413         cpusubtype = cpu_subtype();
 414         cputhreadtype = cpu_threadtype();
 415
 416         /*
 417          * Populate the optional portion of the hw.* MIB.
 418          *
 419          * XXX This could be broken out into parts of the code
 420          *     that actually directly relate to the functions in
 421          *     question.
 422          */
 423
 424         if (cputhreadtype != CPU_THREADTYPE_NONE) {
 425                 static SYSCTL_INT(_hw, OID_AUTO, cputhreadtype, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &cputhreadtype, 0, "");
 426                 sysctl_register_oid(&sysctl__hw_cputhreadtype);
 427         }
 428
 429 #ifdef __ppc__
 430         {
 431                 static int altivec_flag = -1;
 432                 static SYSCTL_INT(_hw_optional, OID_AUTO, altivec, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &altivec_flag, 0, "");
 433
 434                 if (_cpu_capabilities & kHasAltivec) {
 435                         altivec_flag = 1;
 436                         sysctl_register_oid(&sysctl__hw_optional_altivec);
 437                 }
 438         }
 439         {
 440                 static int graphicsops_flag = -1;
 441                 static SYSCTL_INT(_hw_optional, OID_AUTO, graphicsops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &graphicsops_flag, 0, "");
 442
 443                 if (_cpu_capabilities & kHasGraphicsOps) {
 444                         graphicsops_flag = 1;
 445                         sysctl_register_oid(&sysctl__hw_optional_graphicsops);
 446                 }
 447         }
 448         {
 449                 static int x64bitops_flag = -1;
 450                 static SYSCTL_INT(_hw_optional, OID_AUTO, 64bitops, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &x64bitops_flag, 0, "");
 451
 452                 if (_cpu_capabilities & k64Bit) {
 453                         x64bitops_flag = 1;
 454                         sysctl_register_oid(&sysctl__hw_optional_64bitops);
 455                 }
 456         }
 457         {
 458                 static int fsqrt_flag = -1;
 459                 static SYSCTL_INT(_hw_optional, OID_AUTO, fsqrt, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &fsqrt_flag, 0, "");
 460
 461                 if (_cpu_capabilities & kHasFsqrt) {
 462                         fsqrt_flag = 1;
 463                         sysctl_register_oid(&sysctl__hw_optional_fsqrt);
 464                 }
 465         }
 466         {
 467                 static int stfiwx_flag = -1;
 468                 static SYSCTL_INT(_hw_optional, OID_AUTO, stfiwx, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &stfiwx_flag, 0, "");
 469
 470                 if (_cpu_capabilities & kHasStfiwx) {
 471                         stfiwx_flag = 1;
 472                         sysctl_register_oid(&sysctl__hw_optional_stfiwx);
 473                 }
 474         }
 475         {
 476                 static int dcba_flag = -1;
 477                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcba, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcba_flag, 0, "");
 478
 479                 if (_cpu_capabilities & kDcbaAvailable)
 480                         dcba_flag = 0;
 481                 if (_cpu_capabilities & kDcbaRecommended)
 482                         dcba_flag = 1;
 483                 if (dcba_flag >= 0)
 484                         sysctl_register_oid(&sysctl__hw_optional_dcba);
 485         }
 486         {
 487                 static int datastreams_flag = -1;
 488                 static SYSCTL_INT(_hw_optional, OID_AUTO, datastreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &datastreams_flag, 0, "");
 489
 490                 if (_cpu_capabilities & kDataStreamsAvailable)
 491                         datastreams_flag = 0;
 492                 if (_cpu_capabilities & kDataStreamsRecommended)
 493                         datastreams_flag = 1;
 494                 if (datastreams_flag >= 0)
 495                         sysctl_register_oid(&sysctl__hw_optional_datastreams);
 496         }
 497         {
 498                 static int dcbtstreams_flag = -1;
 499                 static SYSCTL_INT(_hw_optional, OID_AUTO, dcbtstreams, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN, &dcbtstreams_flag, 0, "");
 500
 501                 if (_cpu_capabilities & kDcbtStreamsAvailable)
 502                         dcbtstreams_flag = 0;
 503                 if (_cpu_capabilities & kDcbtStreamsRecommended)
 504                         dcbtstreams_flag = 1;
 505                 if (dcbtstreams_flag >= 0)
 506                         sysctl_register_oid(&sysctl__hw_optional_dcbtstreams);
 507         }
 508
 509         /* hw.cpufamily */
 510         switch (cpusubtype) {
 511         case CPU_SUBTYPE_POWERPC_750:
 512                 cpufamily = CPUFAMILY_POWERPC_G3;
 513                 break;
 514         case CPU_SUBTYPE_POWERPC_7400:
 515         case CPU_SUBTYPE_POWERPC_7450:
 516                 cpufamily = CPUFAMILY_POWERPC_G4;
 517                 break;
 518         case CPU_SUBTYPE_POWERPC_970:
 519                 cpufamily = CPUFAMILY_POWERPC_G5;
 520                 break;
 521         default:
 522                 cpufamily = CPUFAMILY_UNKNOWN;
 523         }
 524
 525         /* hw.cacheconfig */
 526         cacheconfig[0] = 0; /* XXX not supported on PowerPC */
 527
 528 #elif defined (__i386__)
 529
 530
 531 #define DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, flags) { \
 532         static int named##_flag = -1;   \
 533         static SYSCTL_INT(_hw_optional, OID_AUTO, named, CTLFLAG_RD | CTLFLAG_NOAUTO | CTLFLAG_KERN | flags, &named##_flag, 0, "");     \
 534         named##_flag = ((_get_cpu_capabilities() & BITS) == BITS)? 1 : 0;       \
 535         sysctl_register_oid(&sysctl__hw_optional_##named);      \
 536         }
 537
 538 #define DECLARE_X86_HW_OPTIONAL(named, BITS) \
 539         DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, 0)
 540
 541 #define DECLARE_X86_HW_OPTIONAL_MASKED(named, BITS) \
 542         DECLARE_X86_HW_OPTIONAL_FLAGS(named, BITS, CTLFLAG_MASKED)
 543
 544         DECLARE_X86_HW_OPTIONAL(mmx, kHasMMX);
 545         DECLARE_X86_HW_OPTIONAL(sse, kHasSSE);
 546         DECLARE_X86_HW_OPTIONAL(sse2, kHasSSE2);
 547         DECLARE_X86_HW_OPTIONAL(sse3, kHasSSE3);
 548         if (_get_cpu_capabilities() & k64Bit)
 549                 DECLARE_X86_HW_OPTIONAL(x86_64, k64Bit);
 550         if (_get_cpu_capabilities() & kHasSupplementalSSE3) {
 551                 DECLARE_X86_HW_OPTIONAL_MASKED(mni, kHasSupplementalSSE3); /* XXX */
 552                 DECLARE_X86_HW_OPTIONAL(supplementalsse3, kHasSupplementalSSE3);
 553         }
 554
 555         /* hw.cpufamily */
 556         switch (cpuid_info()->cpuid_family) {
 557         case 6:
 558                 switch (cpuid_info()->cpuid_model) {
 559                 case 14:
 560                         cpufamily = CPUFAMILY_INTEL_6_14; /* Core Solo/Duo */
 561                         break;
 562                 case 15:
 563                         cpufamily = CPUFAMILY_INTEL_6_15;
 564                         break;
 565                 default:
 566                         cpufamily = CPUFAMILY_UNKNOWN;
 567                 }
 568                 break;
 569         default:
 570                 cpufamily = CPUFAMILY_UNKNOWN;
 571         }
 572         /* hw.cacheconfig */
 573         cacheconfig[0] = cpuid_info()->cpuid_cores_per_package;
 574         cacheconfig[1] = MAX(cpuid_info()->cache_sharing[L1I], cpuid_info()->cache_sharing[L1D]);
 575         cacheconfig[2] = cpuid_info()->cache_sharing[L2U];
 576         cacheconfig[3] = cpuid_info()->cache_sharing[L3U];
 577         cacheconfig[4] = 0;
 578
 579 #else /* end __i386 */
 580 # warning we do not support this platform yet
 581 #endif /* __ppc__ */
 582
 583
 584 }