1*2fa72412Spirofti /* $OpenBSD: amdmsr.h,v 1.4 2011/03/23 16:54:35 pirofti Exp $ */ 24826a54bSmbalmer 3dbd77756Sderaadt /* 4dbd77756Sderaadt * Copyright (c) 2008 Marc Balmer <mbalmer@openbsd.org> 5dbd77756Sderaadt * 6dbd77756Sderaadt * Permission to use, copy, modify, and distribute this software for any 7dbd77756Sderaadt * purpose with or without fee is hereby granted, provided that the above 8dbd77756Sderaadt * copyright notice and this permission notice appear in all copies. 9dbd77756Sderaadt * 10dbd77756Sderaadt * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11dbd77756Sderaadt * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12dbd77756Sderaadt * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13dbd77756Sderaadt * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14dbd77756Sderaadt * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15dbd77756Sderaadt * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16dbd77756Sderaadt * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17dbd77756Sderaadt */ 18dbd77756Sderaadt 19*2fa72412Spirofti #ifndef _MACHINE_AMDMSR_H_ 20*2fa72412Spirofti #define _MACHINE_AMDMSR_H_ 21dbd77756Sderaadt 22dbd77756Sderaadt struct amdmsr_req { 23dbd77756Sderaadt u_int32_t addr; /* 32-bit MSR address */ 24dbd77756Sderaadt u_int64_t val; /* 64-bit MSR value */ 25dbd77756Sderaadt }; 26dbd77756Sderaadt 27dbd77756Sderaadt #define RDMSR _IOWR('M', 0, struct amdmsr_req) 28dbd77756Sderaadt #define WRMSR _IOW('M', 1, struct amdmsr_req) 29dbd77756Sderaadt 30f49632f6Smbalmer #ifdef _KERNEL 31f49632f6Smbalmer int amdmsr_probe(void); 32f49632f6Smbalmer #endif 33f49632f6Smbalmer 34*2fa72412Spirofti #endif /* !_MACHINE_AMDMSR_H_ */ 35