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 * Copyright 2022 Oxide Computer Company 29 */ 30 31 #ifndef _SYS_CPUID_DRV_H 32 #define _SYS_CPUID_DRV_H 33 34 #include <sys/types.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /* 41 * /dev names: 42 * /dev/cpu/ - containing directory 43 * self/ - describes current cpu 44 * cpuid - cpu identification 45 */ 46 47 #define CPUID_DRIVER_NAME "cpuid" 48 #define CPUID_DRIVER_SELF_NODE "self" 49 50 #define CPUID_DIR_NAME "cpu" 51 #define CPUID_SELF_DIR_NAME "self" 52 #define CPUID_NAME "cpuid" 53 #define CPUID_SELF_NAME \ 54 CPUID_DIR_NAME "/" CPUID_SELF_DIR_NAME "/" CPUID_NAME 55 56 /* 57 * This minor number corresponds to the cpu we're running on at 58 * the time we invoke its interfaces. 59 */ 60 #define CPUID_SELF_CPUID_MINOR ((minor_t)0x3fffful) 61 62 /* 63 * ioctl numbers: not an exported interface 64 */ 65 #define CPUID_IOC (('c'<<24)|('i'<<16)|('d'<<8)) 66 67 #define CPUID_GET_HWCAP (CPUID_IOC|0) 68 #define CPUID_RDMSR (CPUID_IOC|1) 69 70 struct cpuid_get_hwcap { 71 char *cgh_archname; 72 uint_t cgh_hwcap[3]; 73 }; 74 75 struct cpuid_rdmsr { 76 uint64_t cr_msr_nr; 77 uint64_t cr_msr_val; 78 }; 79 80 #if defined(_SYSCALL32_IMPL) 81 82 #include <sys/types32.h> 83 84 struct cpuid_get_hwcap32 { 85 caddr32_t cgh_archname; 86 uint32_t cgh_hwcap[3]; 87 }; 88 89 #endif /* _SYSCALL32_IMPL */ 90 91 #ifdef __cplusplus 92 } 93 #endif 94 95 #endif /* _SYS_CPUID_DRV_H */ 96