1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 /*
  27  * Copyright (c) 2012, Joyent, Inc.  All rights reserved.
  28  */
  29 
  30 #ifndef _SYS_CPUID_DRV_H
  31 #define _SYS_CPUID_DRV_H
  32 
  33 #include <sys/types.h>
  34 
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38 
  39 /*
  40  * /dev names:
  41  *      /dev/cpu/                       - containing directory
  42  *              self/                   - describes current cpu
  43  *                      cpuid           - cpu identification
  44  */
  45 
  46 #define CPUID_DRIVER_NAME       "cpuid"
  47 #define CPUID_DRIVER_SELF_NODE  "self"
  48 
  49 #define CPUID_DIR_NAME          "cpu"
  50 #define CPUID_SELF_DIR_NAME     "self"
  51 #define CPUID_NAME              "cpuid"
  52 #define CPUID_SELF_NAME         \
  53         CPUID_DIR_NAME "/" CPUID_SELF_DIR_NAME "/" CPUID_NAME
  54 
  55 /*
  56  * This minor number corresponds to the cpu we're running on at
  57  * the time we invoke its interfaces.
  58  */
  59 #define CPUID_SELF_CPUID_MINOR  ((minor_t)0x3fffful)
  60 
  61 /*
  62  * ioctl numbers: not an exported interface
  63  */
  64 #define CPUID_IOC               (('c'<<24)|('i'<<16)|('d'<<8))
  65 
  66 #define CPUID_GET_HWCAP         (CPUID_IOC|0)
  67 
  68 struct cpuid_get_hwcap {
  69         char *cgh_archname;
  70         uint_t cgh_hwcap[2];
  71 };
  72 
  73 #if defined(_SYSCALL32_IMPL)
  74 
  75 #include <sys/types32.h>
  76 
  77 struct cpuid_get_hwcap32 {
  78         caddr32_t cgh_archname;
  79         uint32_t cgh_hwcap[2];
  80 };
  81 
  82 #endif  /* _SYSCALL32_IMPL */
  83 
  84 #ifdef __cplusplus
  85 }
  86 #endif
  87 
  88 #endif  /* _SYS_CPUID_DRV_H */