bsd/dev/i386/sysctl.c

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