/* * Copyright (c) 2007 Martin Decky * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - 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. * - 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 ``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 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. */ /** @addtogroup kernel_generic_mm * @{ */ /** @file */ #ifndef KERN_MM_H_ #define KERN_MM_H_ #define PAGE_CACHEABLE_SHIFT 0 #define PAGE_NOT_CACHEABLE_SHIFT PAGE_CACHEABLE_SHIFT #define PAGE_PRESENT_SHIFT 1 #define PAGE_NOT_PRESENT_SHIFT PAGE_PRESENT_SHIFT #define PAGE_USER_SHIFT 2 #define PAGE_KERNEL_SHIFT PAGE_USER_SHIFT #define PAGE_READ_SHIFT 3 #define PAGE_WRITE_SHIFT 4 #define PAGE_EXEC_SHIFT 5 #define PAGE_GLOBAL_SHIFT 6 #define PAGE_WRITE_COMBINE_SHIFT 7 #define PAGE_NOT_CACHEABLE (0 << PAGE_CACHEABLE_SHIFT) #define PAGE_CACHEABLE (1 << PAGE_CACHEABLE_SHIFT) #define PAGE_PRESENT (0 << PAGE_PRESENT_SHIFT) #define PAGE_NOT_PRESENT (1 << PAGE_PRESENT_SHIFT) #define PAGE_USER (1 << PAGE_USER_SHIFT) #define PAGE_KERNEL (0 << PAGE_USER_SHIFT) #define PAGE_READ (1 << PAGE_READ_SHIFT) #define PAGE_WRITE (1 << PAGE_WRITE_SHIFT) #define PAGE_EXEC (1 << PAGE_EXEC_SHIFT) #define PAGE_GLOBAL (1 << PAGE_GLOBAL_SHIFT) #define PAGE_WRITE_COMBINE (1 << PAGE_WRITE_COMBINE_SHIFT) #endif /** @} */