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 2019 Joyent, Inc. 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 #define CPUID_RDMSR (CPUID_IOC|1) 68 69 struct cpuid_get_hwcap { 70 char *cgh_archname; 71 uint_t cgh_hwcap[2]; 72 }; 73 74 struct cpuid_rdmsr { 75 uint64_t cr_msr_nr; 76 uint64_t cr_msr_val; 77 }; 78 79 #if defined(_SYSCALL32_IMPL) 80 81 #include <sys/types32.h> 82 83 struct cpuid_get_hwcap32 { 84 caddr32_t cgh_archname; 85 uint32_t cgh_hwcap[2]; 86 }; 87 88 #endif /* _SYSCALL32_IMPL */ 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif /* _SYS_CPUID_DRV_H */ 95