bsd/dev/i386/sysctl.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 #include <sys/param.h>
  27 #include <sys/kernel.h>
  28 #include <sys/sysctl.h>
  29 #include <i386/cpuid.h>
  30
  31 static int
  32 hw_cpu_sysctl SYSCTL_HANDLER_ARGS
  33 {
  34     i386_cpu_info_t cpu_info;
  35     void *ptr = (uint8_t *)&cpu_info + (uint32_t)arg1;
  36     int value;
  37
  38     cpuid_get_info(&cpu_info);
  39
  40     if (arg2 == sizeof(uint8_t)) {
  41         value = (uint32_t) *(uint8_t *)ptr;
  42         ptr = &value;
  43         arg2 = sizeof(uint32_t);
  44     }
  45     return SYSCTL_OUT(req, ptr, arg2 ? arg2 : strlen((char *)ptr)+1);
  46     return 0;
  47 }
  48
  49 static int
  50 hw_cpu_features SYSCTL_HANDLER_ARGS
  51 {
  52     i386_cpu_info_t cpu_info;
  53     char buf[256];
  54     vm_size_t size;
  55
  56     cpuid_get_info(&cpu_info);
  57     buf[0] = '\0';
  58     cpuid_get_feature_names(cpu_info.cpuid_features, buf, sizeof(buf));
  59
  60     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  61 }
  62
  63 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW, 0,
  64         "CPU info");
  65
  66 SYSCTL_PROC(_machdep_cpu, OID_AUTO, vendor, CTLTYPE_STRING | CTLFLAG_RD,
  67             (void *)offsetof(i386_cpu_info_t, cpuid_vendor), 0,
  68             hw_cpu_sysctl, "A", "CPU vendor");
  69
  70 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand_string, CTLTYPE_STRING | CTLFLAG_RD,
  71             (void *)offsetof(i386_cpu_info_t, cpuid_brand_string), 0,
  72             hw_cpu_sysctl, "A", "CPU brand string");
  73
  74 SYSCTL_PROC(_machdep_cpu, OID_AUTO, value, CTLTYPE_INT | CTLFLAG_RD,
  75             (void *)offsetof(i386_cpu_info_t, cpuid_value), sizeof(uint32_t),
  76             hw_cpu_sysctl, "I", "CPU value");
  77
  78 SYSCTL_PROC(_machdep_cpu, OID_AUTO, family, CTLTYPE_INT | CTLFLAG_RD,
  79             (void *)offsetof(i386_cpu_info_t, cpuid_family), sizeof(uint8_t),
  80             hw_cpu_sysctl, "I", "CPU family");
  81
  82 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model, CTLTYPE_INT | CTLFLAG_RD,
  83             (void *)offsetof(i386_cpu_info_t, cpuid_model), sizeof(uint8_t),
  84             hw_cpu_sysctl, "I", "CPU model");
  85
  86 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extmodel, CTLTYPE_INT | CTLFLAG_RD,
  87             (void *)offsetof(i386_cpu_info_t, cpuid_extmodel), sizeof(uint8_t),
  88             hw_cpu_sysctl, "I", "CPU extended model");
  89
  90 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfamily, CTLTYPE_INT | CTLFLAG_RD,
  91             (void *)offsetof(i386_cpu_info_t, cpuid_extfamily), sizeof(uint8_t),
  92             hw_cpu_sysctl, "I", "CPU extended family");
  93
  94 SYSCTL_PROC(_machdep_cpu, OID_AUTO, stepping, CTLTYPE_INT | CTLFLAG_RD,
  95             (void *)offsetof(i386_cpu_info_t, cpuid_stepping), sizeof(uint8_t),
  96             hw_cpu_sysctl, "I", "CPU stepping");
  97
  98 SYSCTL_PROC(_machdep_cpu, OID_AUTO, feature_bits, CTLTYPE_INT | CTLFLAG_RD,
  99             (void *)offsetof(i386_cpu_info_t, cpuid_features), sizeof(uint32_t),
 100             hw_cpu_sysctl, "I", "CPU features");
 101
 102 SYSCTL_PROC(_machdep_cpu, OID_AUTO, signature, CTLTYPE_INT | CTLFLAG_RD,
 103             (void *)offsetof(i386_cpu_info_t, cpuid_signature), sizeof(uint32_t),
 104             hw_cpu_sysctl, "I", "CPU signature");
 105
 106 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand, CTLTYPE_INT | CTLFLAG_RD,
 107             (void *)offsetof(i386_cpu_info_t, cpuid_brand), sizeof(uint8_t),
 108             hw_cpu_sysctl, "I", "CPU brand");
 109
 110 #if 0
 111 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model_string, CTLTYPE_STRING | CTLFLAG_RD,
 112             (void *)offsetof(i386_cpu_info_t, model_string), 0,
 113             hw_cpu_sysctl, "A", "CPU model string");
 114 #endif
 115
 116 SYSCTL_PROC(_machdep_cpu, OID_AUTO, features, CTLTYPE_STRING | CTLFLAG_RD,
 117             0, 0,
 118             hw_cpu_features, "A", "CPU feature names");
 119
 120
 121 struct sysctl_oid *machdep_sysctl_list[] =
 122 {
 123     &sysctl__machdep_cpu,
 124     &sysctl__machdep_cpu_vendor,
 125     &sysctl__machdep_cpu_brand_string,
 126     &sysctl__machdep_cpu_value,
 127     &sysctl__machdep_cpu_family,
 128     &sysctl__machdep_cpu_model,
 129     &sysctl__machdep_cpu_extmodel,
 130     &sysctl__machdep_cpu_extfamily,
 131     &sysctl__machdep_cpu_feature_bits,
 132     &sysctl__machdep_cpu_stepping,
 133     &sysctl__machdep_cpu_signature,
 134     &sysctl__machdep_cpu_brand,
 135     &sysctl__machdep_cpu_features,
 136     (struct sysctl_oid *) 0
 137 };
 138