/* * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the * License may not be used to create, or enable the creation or * redistribution of, unlawful or unlicensed copies of an Apple operating * system, or to circumvent, violate, or enable the circumvention or * violation of, any terms of an Apple operating system software license * agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_OSREFERENCE_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_ */