From f6935a006a6ffe57413877093035cdc1a020e7bd Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Fri, 14 Dec 2012 11:42:57 -0800 Subject: libpayload: rename i386 to x86 Change-Id: Ia9170bd3d04e76dbf9321ca7ea4be23b5e468d21 Signed-off-by: Stefan Reinauer Reviewed-on: http://review.coreboot.org/2033 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- payloads/libpayload/include/x86/arch/msr.h | 58 ++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 payloads/libpayload/include/x86/arch/msr.h (limited to 'payloads/libpayload/include/x86/arch/msr.h') diff --git a/payloads/libpayload/include/x86/arch/msr.h b/payloads/libpayload/include/x86/arch/msr.h new file mode 100644 index 0000000000..c28b56cde1 --- /dev/null +++ b/payloads/libpayload/include/x86/arch/msr.h @@ -0,0 +1,58 @@ +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Advanced Micro Devices, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_MSR_H +#define _ARCH_MSR_H + +static inline unsigned long long _rdmsr(unsigned int msr) +{ + unsigned long long val; + asm volatile("rdmsr" : "=A" (val) : "c" (msr)); + return val; +} + +static inline void _wrmsr(unsigned int msr, unsigned long long val) +{ + asm volatile("wrmsr" : : "c" (msr), "A"(val)); +} + +#define rdmsr(_m, _l, _h) \ + do { \ + unsigned long long _v = _rdmsr((_m)); \ + (_l) = (unsigned int) _v; \ + (_h) = (unsigned int) ((_v >> 32) & 0xFFFFFFFF); \ + } while(0) + +static inline void wrmsr(unsigned int msr, unsigned int lo, unsigned int hi) +{ + unsigned long long val = (((unsigned long long) hi) << 32) | lo; + _wrmsr(msr, val); +} + +#endif -- cgit v1.2.3