bsd/dev/i386/sysctl.c

   1 /*
   2  * Copyright (c) 2003 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 #include <string.h>
  32 #include <sys/param.h>
  33 #include <sys/kernel.h>
  34 #include <sys/sysctl.h>
  35 #include <i386/cpuid.h>
  36
  37 static int
  38 hw_cpu_sysctl SYSCTL_HANDLER_ARGS
  39 {
  40     __unused struct sysctl_oid *unused_oidp = oidp;
  41     i386_cpu_info_t *cpu_info = cpuid_info();
  42     void *ptr = (uint8_t *)cpu_info + (uint32_t)arg1;
  43     int value;
  44
  45     if (arg2 == -1) {
  46         ptr = *(char **)ptr;
  47         arg2 = 0;
  48     }
  49
  50     if (arg2 == 0 && ((char *)ptr)[0] == '\0') {
  51         return ENOENT;
  52     }
  53
  54     if (arg2 == sizeof(uint8_t)) {
  55         value = (uint32_t) *(uint8_t *)ptr;
  56         ptr = &value;
  57         arg2 = sizeof(uint32_t);
  58     }
  59     return SYSCTL_OUT(req, ptr, arg2 ? (size_t) arg2 : strlen((char *)ptr)+1);
  60 }
  61
  62 static int
  63 hw_cpu_features SYSCTL_HANDLER_ARGS
  64 {
  65     __unused struct sysctl_oid *unused_oidp = oidp;
  66     __unused void *unused_arg1 = arg1;
  67     __unused int unused_arg2 = arg2;
  68     char buf[256];
  69
  70     buf[0] = '\0';
  71     cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf));
  72
  73     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  74 }
  75
  76 static int
  77 hw_cpu_extfeatures SYSCTL_HANDLER_ARGS
  78 {
  79     __unused struct sysctl_oid *unused_oidp = oidp;
  80     __unused void *unused_arg1 = arg1;
  81     __unused int unused_arg2 = arg2;
  82     char buf[256];
  83
  84     buf[0] = '\0';
  85     cpuid_get_extfeature_names(cpuid_extfeatures(), buf, sizeof(buf));
  86
  87     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  88 }
  89
  90 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW, 0,
  91         "CPU info");
  92
  93 SYSCTL_PROC(_machdep_cpu, OID_AUTO, vendor, CTLTYPE_STRING | CTLFLAG_RD,
  94             (void *)offsetof(i386_cpu_info_t, cpuid_vendor), 0,
  95             hw_cpu_sysctl, "A", "CPU vendor");
  96
  97 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand_string, CTLTYPE_STRING | CTLFLAG_RD,
  98             (void *)offsetof(i386_cpu_info_t, cpuid_brand_string), 0,
  99             hw_cpu_sysctl, "A", "CPU brand string");
 100
 101 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model_string, CTLTYPE_STRING | CTLFLAG_RD,
 102             (void *)offsetof(i386_cpu_info_t, cpuid_model_string), -1,
 103             hw_cpu_sysctl, "A", "CPU model string");
 104
 105 SYSCTL_PROC(_machdep_cpu, OID_AUTO, family, CTLTYPE_INT | CTLFLAG_RD,
 106             (void *)offsetof(i386_cpu_info_t, cpuid_family), sizeof(uint8_t),
 107             hw_cpu_sysctl, "I", "CPU family");
 108
 109 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model, CTLTYPE_INT | CTLFLAG_RD,
 110             (void *)offsetof(i386_cpu_info_t, cpuid_model), sizeof(uint8_t),
 111             hw_cpu_sysctl, "I", "CPU model");
 112
 113 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extmodel, CTLTYPE_INT | CTLFLAG_RD,
 114             (void *)offsetof(i386_cpu_info_t, cpuid_extmodel), sizeof(uint8_t),
 115             hw_cpu_sysctl, "I", "CPU extended model");
 116
 117 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfamily, CTLTYPE_INT | CTLFLAG_RD,
 118             (void *)offsetof(i386_cpu_info_t, cpuid_extfamily), sizeof(uint8_t),
 119             hw_cpu_sysctl, "I", "CPU extended family");
 120
 121 SYSCTL_PROC(_machdep_cpu, OID_AUTO, stepping, CTLTYPE_INT | CTLFLAG_RD,
 122             (void *)offsetof(i386_cpu_info_t, cpuid_stepping), sizeof(uint8_t),
 123             hw_cpu_sysctl, "I", "CPU stepping");
 124
 125 SYSCTL_PROC(_machdep_cpu, OID_AUTO, feature_bits, CTLTYPE_QUAD | CTLFLAG_RD,
 126             (void *)offsetof(i386_cpu_info_t, cpuid_features), sizeof(uint64_t),
 127             hw_cpu_sysctl, "I", "CPU features");
 128
 129 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfeature_bits, CTLTYPE_QUAD | CTLFLAG_RD,
 130             (void *)offsetof(i386_cpu_info_t, cpuid_extfeatures), sizeof(uint64_t),
 131             hw_cpu_sysctl, "I", "CPU extended features");
 132
 133 SYSCTL_PROC(_machdep_cpu, OID_AUTO, signature, CTLTYPE_INT | CTLFLAG_RD,
 134             (void *)offsetof(i386_cpu_info_t, cpuid_signature), sizeof(uint32_t),
 135             hw_cpu_sysctl, "I", "CPU signature");
 136
 137 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand, CTLTYPE_INT | CTLFLAG_RD,
 138             (void *)offsetof(i386_cpu_info_t, cpuid_brand), sizeof(uint8_t),
 139             hw_cpu_sysctl, "I", "CPU brand");
 140
 141 SYSCTL_PROC(_machdep_cpu, OID_AUTO, features, CTLTYPE_STRING | CTLFLAG_RD,
 142             0, 0,
 143             hw_cpu_features, "A", "CPU feature names");
 144
 145 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfeatures, CTLTYPE_STRING | CTLFLAG_RD,
 146             0, 0,
 147             hw_cpu_extfeatures, "A", "CPU extended feature names");
 148
 149 SYSCTL_PROC(_machdep_cpu, OID_AUTO, logical_per_package,
 150             CTLTYPE_INT | CTLFLAG_RD,
 151             (void *)offsetof(i386_cpu_info_t, cpuid_logical_per_package),
 152             sizeof(uint32_t),
 153             hw_cpu_sysctl, "I", "CPU logical cpus per package");
 154
 155 SYSCTL_PROC(_machdep_cpu, OID_AUTO, cores_per_package,
 156             CTLTYPE_INT | CTLFLAG_RD,
 157             (void *)offsetof(i386_cpu_info_t, cpuid_cores_per_package),
 158             sizeof(uint32_t),
 159             hw_cpu_sysctl, "I", "CPU cores per package");
 160
 161
 162 struct sysctl_oid *machdep_sysctl_list[] =
 163 {
 164     &sysctl__machdep_cpu,
 165     &sysctl__machdep_cpu_vendor,
 166     &sysctl__machdep_cpu_brand_string,
 167     &sysctl__machdep_cpu_model_string,
 168     &sysctl__machdep_cpu_family,
 169     &sysctl__machdep_cpu_model,
 170     &sysctl__machdep_cpu_extmodel,
 171     &sysctl__machdep_cpu_extfamily,
 172     &sysctl__machdep_cpu_feature_bits,
 173     &sysctl__machdep_cpu_extfeature_bits,
 174     &sysctl__machdep_cpu_stepping,
 175     &sysctl__machdep_cpu_signature,
 176     &sysctl__machdep_cpu_brand,
 177     &sysctl__machdep_cpu_features,
 178     &sysctl__machdep_cpu_extfeatures,
 179     &sysctl__machdep_cpu_logical_per_package,
 180     &sysctl__machdep_cpu_cores_per_package,
 181     (struct sysctl_oid *) 0
 182 };
 183