/* * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef _I386_MTRR_H_ #define _I386_MTRR_H_ /* * Memory type range register (MTRR) support. */ #include <mach/std_types.h> #include <sys/appleapiopts.h> #include <sys/cdefs.h> #ifdef __APPLE_API_PRIVATE enum { MTRR_TYPE_UNCACHEABLE = 0, MTRR_TYPE_WRITECOMBINE = 1, MTRR_TYPE_WRITETHROUGH = 4, MTRR_TYPE_WRITEPROTECT = 5, MTRR_TYPE_WRITEBACK = 6 }; __BEGIN_DECLS extern void mtrr_init(void); extern kern_return_t mtrr_update_cpu(void); extern kern_return_t mtrr_update_all_cpus(void); extern kern_return_t mtrr_range_add( addr64_t phys_addr, uint64_t length, uint32_t mem_type); extern kern_return_t mtrr_range_remove( addr64_t phys_addr, uint64_t length, uint32_t mem_type); extern void pat_init(void); __END_DECLS #endif /* __APPLE_API_PRIVATE */ #endif /* !_I386_MTRR_H_ */