1 /* 2 * Copyright (c) 2015-2020 François Tigeot <ftigeot@wolfpond.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _ASM_PGTABLE_TYPES_H_ 28 #define _ASM_PGTABLE_TYPES_H_ 29 30 #include <cpu/pmap.h> 31 32 #define _PAGE_PRESENT X86_PG_V 33 #define _PAGE_RW X86_PG_RW 34 #define _PAGE_PWT X86_PG_NC_PWT 35 #define _PAGE_PCD X86_PG_NC_PCD 36 #define _PAGE_ACCESSED X86_PG_A 37 #define _PAGE_DIRTY X86_PG_M 38 #define _PAGE_PAT X86_PG_PTE_PAT 39 #define _PAGE_GLOBAL X86_PG_G 40 #define _PAGE_NX X86_PG_NX 41 42 #define _PAGE_CACHE_WC _PAGE_PWT 43 #define _PAGE_CACHE_UC_MINUS _PAGE_PCD 44 45 #define _PAGE_CACHE_MASK (_PAGE_PWT | _PAGE_PCD | _PAGE_PAT) 46 47 #define __PAGE_KERNEL_EXEC \ 48 (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) 49 #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX) 50 51 #define PAGE_KERNEL __PAGE_KERNEL 52 #define PAGE_KERNEL_IO __PAGE_KERNEL 53 54 static inline pgprot_t 55 pgprot_writecombine(pgprot_t prot) 56 { 57 return (prot | VM_MEMATTR_WRITE_COMBINING); 58 } 59 60 #define __pgprot(value) ((pgprot_t) {(value)}) 61 #define pgprot_val(x) (x) 62 63 #endif /* _ASM_PGTABLE_TYPES_H_ */ 64