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