bsd/dev/i386/sysctl.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <string.h>
  24 #include <sys/param.h>
  25 #include <sys/kernel.h>
  26 #include <sys/sysctl.h>
  27 #include <i386/cpuid.h>
  28
  29 static int
  30 hw_cpu_sysctl SYSCTL_HANDLER_ARGS
  31 {
  32     __unused struct sysctl_oid *unused_oidp = oidp;
  33     i386_cpu_info_t *cpu_info = cpuid_info();
  34     void *ptr = (uint8_t *)cpu_info + (uint32_t)arg1;
  35     int value;
  36
  37     if (arg2 == -1) {
  38         ptr = *(char **)ptr;
  39         arg2 = 0;
  40     }
  41
  42     if (arg2 == 0 && ((char *)ptr)[0] == '\0') {
  43         return ENOENT;
  44     }
  45
  46     if (arg2 == sizeof(uint8_t)) {
  47         value = (uint32_t) *(uint8_t *)ptr;
  48         ptr = &value;
  49         arg2 = sizeof(uint32_t);
  50     }
  51     return SYSCTL_OUT(req, ptr, arg2 ? (size_t) arg2 : strlen((char *)ptr)+1);
  52 }
  53
  54 static int
  55 hw_cpu_features SYSCTL_HANDLER_ARGS
  56 {
  57     __unused struct sysctl_oid *unused_oidp = oidp;
  58     __unused void *unused_arg1 = arg1;
  59     __unused int unused_arg2 = arg2;
  60     char buf[256];
  61
  62     buf[0] = '\0';
  63     cpuid_get_feature_names(cpuid_features(), buf, sizeof(buf));
  64
  65     return SYSCTL_OUT(req, buf, strlen(buf) + 1);
  66 }
  67
  68 SYSCTL_NODE(_machdep, OID_AUTO, cpu, CTLFLAG_RW, 0,
  69         "CPU info");
  70
  71 SYSCTL_PROC(_machdep_cpu, OID_AUTO, vendor, CTLTYPE_STRING | CTLFLAG_RD,
  72             (void *)offsetof(i386_cpu_info_t, cpuid_vendor), 0,
  73             hw_cpu_sysctl, "A", "CPU vendor");
  74
  75 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand_string, CTLTYPE_STRING | CTLFLAG_RD,
  76             (void *)offsetof(i386_cpu_info_t, cpuid_brand_string), 0,
  77             hw_cpu_sysctl, "A", "CPU brand string");
  78
  79 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model_string, CTLTYPE_STRING | CTLFLAG_RD,
  80             (void *)offsetof(i386_cpu_info_t, cpuid_model_string), -1,
  81             hw_cpu_sysctl, "A", "CPU model string");
  82
  83 SYSCTL_PROC(_machdep_cpu, OID_AUTO, value, CTLTYPE_INT | CTLFLAG_RD,
  84             (void *)offsetof(i386_cpu_info_t, cpuid_value), sizeof(uint32_t),
  85             hw_cpu_sysctl, "I", "CPU value");
  86
  87 SYSCTL_PROC(_machdep_cpu, OID_AUTO, family, CTLTYPE_INT | CTLFLAG_RD,
  88             (void *)offsetof(i386_cpu_info_t, cpuid_family), sizeof(uint8_t),
  89             hw_cpu_sysctl, "I", "CPU family");
  90
  91 SYSCTL_PROC(_machdep_cpu, OID_AUTO, model, CTLTYPE_INT | CTLFLAG_RD,
  92             (void *)offsetof(i386_cpu_info_t, cpuid_model), sizeof(uint8_t),
  93             hw_cpu_sysctl, "I", "CPU model");
  94
  95 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extmodel, CTLTYPE_INT | CTLFLAG_RD,
  96             (void *)offsetof(i386_cpu_info_t, cpuid_extmodel), sizeof(uint8_t),
  97             hw_cpu_sysctl, "I", "CPU extended model");
  98
  99 SYSCTL_PROC(_machdep_cpu, OID_AUTO, extfamily, CTLTYPE_INT | CTLFLAG_RD,
 100             (void *)offsetof(i386_cpu_info_t, cpuid_extfamily), sizeof(uint8_t),
 101             hw_cpu_sysctl, "I", "CPU extended family");
 102
 103 SYSCTL_PROC(_machdep_cpu, OID_AUTO, stepping, CTLTYPE_INT | CTLFLAG_RD,
 104             (void *)offsetof(i386_cpu_info_t, cpuid_stepping), sizeof(uint8_t),
 105             hw_cpu_sysctl, "I", "CPU stepping");
 106
 107 SYSCTL_PROC(_machdep_cpu, OID_AUTO, feature_bits, CTLTYPE_INT | CTLFLAG_RD,
 108             (void *)offsetof(i386_cpu_info_t, cpuid_features), sizeof(uint32_t),
 109             hw_cpu_sysctl, "I", "CPU features");
 110
 111 SYSCTL_PROC(_machdep_cpu, OID_AUTO, signature, CTLTYPE_INT | CTLFLAG_RD,
 112             (void *)offsetof(i386_cpu_info_t, cpuid_signature), sizeof(uint32_t),
 113             hw_cpu_sysctl, "I", "CPU signature");
 114
 115 SYSCTL_PROC(_machdep_cpu, OID_AUTO, brand, CTLTYPE_INT | CTLFLAG_RD,
 116             (void *)offsetof(i386_cpu_info_t, cpuid_brand), sizeof(uint8_t),
 117             hw_cpu_sysctl, "I", "CPU brand");
 118
 119 SYSCTL_PROC(_machdep_cpu, OID_AUTO, features, CTLTYPE_STRING | CTLFLAG_RD,
 120             0, 0,
 121             hw_cpu_features, "A", "CPU feature names");
 122
 123
 124 struct sysctl_oid *machdep_sysctl_list[] =
 125 {
 126     &sysctl__machdep_cpu,
 127     &sysctl__machdep_cpu_vendor,
 128     &sysctl__machdep_cpu_brand_string,
 129     &sysctl__machdep_cpu_model_string,
 130     &sysctl__machdep_cpu_value,
 131     &sysctl__machdep_cpu_family,
 132     &sysctl__machdep_cpu_model,
 133     &sysctl__machdep_cpu_extmodel,
 134     &sysctl__machdep_cpu_extfamily,
 135     &sysctl__machdep_cpu_feature_bits,
 136     &sysctl__machdep_cpu_stepping,
 137     &sysctl__machdep_cpu_signature,
 138     &sysctl__machdep_cpu_brand,
 139     &sysctl__machdep_cpu_features,
 140     (struct sysctl_oid *) 0
 141 };
 142