1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _H8300_PGTABLE_H 3 #define _H8300_PGTABLE_H 4 #define __ARCH_USE_5LEVEL_HACK 5 #include <asm-generic/pgtable-nopud.h> 6 #include <asm-generic/pgtable.h> 7 extern void paging_init(void); 8 #define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */ 9 #define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */ 10 #define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */ 11 #define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */ 12 #define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */ 13 #define __swp_type(x) (0) 14 #define __swp_offset(x) (0) 15 #define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) 16 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) 17 #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) 18 #define kern_addr_valid(addr) (1) 19 #define pgprot_writecombine(prot) (prot) 20 #define pgprot_noncached pgprot_writecombine 21 pte_file(pte_t pte)22static inline int pte_file(pte_t pte) { return 0; } 23 #define swapper_pg_dir ((pgd_t *) 0) 24 /* 25 * ZERO_PAGE is a global shared page that is always zero: used 26 * for zero-mapped memory areas etc.. 27 */ 28 #define ZERO_PAGE(vaddr) (virt_to_page(0)) 29 30 /* 31 * These would be in other places but having them here reduces the diffs. 32 */ 33 extern unsigned int kobjsize(const void *objp); 34 extern int is_in_rom(unsigned long); 35 36 /* 37 * All 32bit addresses are effectively valid for vmalloc... 38 * Sort of meaningless for non-VM targets. 39 */ 40 #define VMALLOC_START 0 41 #define VMALLOC_END 0xffffffff 42 43 #define arch_enter_lazy_cpu_mode() do {} while (0) 44 45 #endif /* _H8300_PGTABLE_H */ 46