diff options
Diffstat (limited to 'hwaccess_x86_msr.h')
-rw-r--r-- | hwaccess_x86_msr.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/hwaccess_x86_msr.h b/hwaccess_x86_msr.h new file mode 100644 index 000000000..4229b3b92 --- /dev/null +++ b/hwaccess_x86_msr.h @@ -0,0 +1,52 @@ +/* + * This file is part of the flashrom project. + * + * Copyright (C) 2009 Carl-Daniel Hailfinger + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __HWACCESS_X86_MSR_H__ +#define __HWACCESS_X86_MSR_H__ 1 + +#include <stdint.h> + +#if !(defined(__MACH__) && defined(__APPLE__)) && !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) && !defined(__DragonFly__) && !defined(__LIBPAYLOAD__) +typedef struct { uint32_t hi, lo; } msr_t; +msr_t rdmsr(int addr); +int wrmsr(int addr, msr_t msr); +#endif + +#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) +/* FreeBSD already has conflicting definitions for wrmsr/rdmsr. */ +#undef rdmsr +#undef wrmsr +#define rdmsr freebsd_rdmsr +#define wrmsr freebsd_wrmsr +typedef struct { uint32_t hi, lo; } msr_t; +msr_t freebsd_rdmsr(int addr); +int freebsd_wrmsr(int addr, msr_t msr); +#endif + +#if defined(__LIBPAYLOAD__) +#include <arch/io.h> +#include <arch/msr.h> +typedef struct { uint32_t hi, lo; } msr_t; +msr_t libpayload_rdmsr(int addr); +int libpayload_wrmsr(int addr, msr_t msr); +#undef rdmsr +#define rdmsr libpayload_rdmsr +#define wrmsr libpayload_wrmsr +#endif + +int setup_cpu_msr(int cpu); +void cleanup_cpu_msr(void); + +#endif /* __HWACCESS_X86_MSR_H__ */
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