1 /* 2 * Copyright (C) 2006 Atmark Techno, Inc. 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 */ 8 9 #ifndef _ASM_MICROBLAZE_PGTABLE_H 10 #define _ASM_MICROBLAZE_PGTABLE_H 11 12 #include <asm/setup.h> 13 14 #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ 15 remap_pfn_range(vma, vaddr, pfn, size, prot) 16 17 #define pgd_present(pgd) (1) /* pages are always present on non MMU */ 18 #define pgd_none(pgd) (0) 19 #define pgd_bad(pgd) (0) 20 #define pgd_clear(pgdp) 21 #define kern_addr_valid(addr) (1) 22 #define pmd_offset(a, b) ((void *) 0) 23 24 #define PAGE_NONE __pgprot(0) /* these mean nothing to non MMU */ 25 #define PAGE_SHARED __pgprot(0) /* these mean nothing to non MMU */ 26 #define PAGE_COPY __pgprot(0) /* these mean nothing to non MMU */ 27 #define PAGE_READONLY __pgprot(0) /* these mean nothing to non MMU */ 28 #define PAGE_KERNEL __pgprot(0) /* these mean nothing to non MMU */ 29 30 #define __swp_type(x) (0) 31 #define __swp_offset(x) (0) 32 #define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) 33 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) 34 #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) 35 36 #ifndef __ASSEMBLY__ 37 static inline int pte_file(pte_t pte) { return 0; } 38 #endif /* __ASSEMBLY__ */ 39 40 #define ZERO_PAGE(vaddr) ({ BUG(); NULL; }) 41 42 #define swapper_pg_dir ((pgd_t *) NULL) 43 44 #define pgtable_cache_init() do {} while (0) 45 46 #define arch_enter_lazy_cpu_mode() do {} while (0) 47 48 #ifndef __ASSEMBLY__ 49 #include <asm-generic/pgtable.h> 50 51 void setup_memory(void); 52 #endif /* __ASSEMBLY__ */ 53 54 #endif /* _ASM_MICROBLAZE_PGTABLE_H */ 55