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 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW, 0,
  75         "CPU info");
  76
  77 SYSCTL_PROC(_machdep_cpu, OID_AUTO, vendor, CTLTYPE_STRING | CTLFLAG_RD,
  78             (void *)offsetof(i386_cpu_info_t, cpuid_vendor), 0,
  79             hw_cpu_sysctl, "A", "CPU vendor");
  80
  81 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand_string, CTLTYPE_STRING | CTLFLAG_RD,
  82             (void *)offsetof(i386_cpu_info_t, cpuid_brand_string), 0,
  83             hw_cpu_sysctl, "A", "CPU brand string");
  84
  85 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model_string, CTLTYPE_STRING | CTLFLAG_RD,
  86             (void *)offsetof(i386_cpu_info_t, cpuid_model_string), -1,
  87             hw_cpu_sysctl, "A", "CPU model string");
  88
  89 SYSCTL_PROC(_machdep_cpu, OID_AUTO, value, CTLTYPE_INT | CTLFLAG_RD,
  90             (void *)offsetof(i386_cpu_info_t, cpuid_value), sizeof(uint32_t),
  91             hw_cpu_sysctl, "I", "CPU value");
  92
  93 SYSCTL_PROC(_machdep_cpu, OID_AUTO, family, CTLTYPE_INT | CTLFLAG_RD,
  94             (void *)offsetof(i386_cpu_info_t, cpuid_family), sizeof(uint8_t),
  95             hw_cpu_sysctl, "I", "CPU family");
  96
  97 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model, CTLTYPE_INT | CTLFLAG_RD,
  98             (void *)offsetof(i386_cpu_info_t, cpuid_model), sizeof(uint8_t),
  99             hw_cpu_sysctl, "I", "CPU model");
 100
 101 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extmodel, CTLTYPE_INT | CTLFLAG_RD,
 102             (void *)offsetof(i386_cpu_info_t, cpuid_extmodel), sizeof(uint8_t),
 103             hw_cpu_sysctl, "I", "CPU extended model");
 104
 105 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfamily, CTLTYPE_INT | CTLFLAG_RD,
 106             (void *)offsetof(i386_cpu_info_t, cpuid_extfamily), sizeof(uint8_t),
 107             hw_cpu_sysctl, "I", "CPU extended family");
 108
 109 SYSCTL_PROC(_machdep_cpu, OID_AUTO, stepping, CTLTYPE_INT | CTLFLAG_RD,
 110             (void *)offsetof(i386_cpu_info_t, cpuid_stepping), sizeof(uint8_t),
 111             hw_cpu_sysctl, "I", "CPU stepping");
 112
 113 SYSCTL_PROC(_machdep_cpu, OID_AUTO, feature_bits, CTLTYPE_INT | CTLFLAG_RD,
 114             (void *)offsetof(i386_cpu_info_t, cpuid_features), sizeof(uint32_t),
 115             hw_cpu_sysctl, "I", "CPU features");
 116
 117 SYSCTL_PROC(_machdep_cpu, OID_AUTO, signature, CTLTYPE_INT | CTLFLAG_RD,
 118             (void *)offsetof(i386_cpu_info_t, cpuid_signature), sizeof(uint32_t),
 119             hw_cpu_sysctl, "I", "CPU signature");
 120
 121 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand, CTLTYPE_INT | CTLFLAG_RD,
 122             (void *)offsetof(i386_cpu_info_t, cpuid_brand), sizeof(uint8_t),
 123             hw_cpu_sysctl, "I", "CPU brand");
 124
 125 SYSCTL_PROC(_machdep_cpu, OID_AUTO, features, CTLTYPE_STRING | CTLFLAG_RD,
 126             0, 0,
 127             hw_cpu_features, "A", "CPU feature names");
 128
 129
 130 struct sysctl_oid *machdep_sysctl_list[] =
 131 {
 132     &sysctl__machdep_cpu,
 133     &sysctl__machdep_cpu_vendor,
 134     &sysctl__machdep_cpu_brand_string,
 135     &sysctl__machdep_cpu_model_string,
 136     &sysctl__machdep_cpu_value,
 137     &sysctl__machdep_cpu_family,
 138     &sysctl__machdep_cpu_model,
 139     &sysctl__machdep_cpu_extmodel,
 140     &sysctl__machdep_cpu_extfamily,
 141     &sysctl__machdep_cpu_feature_bits,
 142     &sysctl__machdep_cpu_stepping,
 143     &sysctl__machdep_cpu_signature,
 144     &sysctl__machdep_cpu_brand,
 145     &sysctl__machdep_cpu_features,
 146     (struct sysctl_oid *) 0
 147 };
 148