1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_POWERPC_BOOK3S_PGTABLE_H
3#define _ASM_POWERPC_BOOK3S_PGTABLE_H
4
5#ifdef CONFIG_PPC64
6#include <asm/book3s/64/pgtable.h>
7#else
8#include <asm/book3s/32/pgtable.h>
9#endif
10
11#define FIRST_USER_ADDRESS	0UL
12#ifndef __ASSEMBLY__
13/* Insert a PTE, top-level function is out of line. It uses an inline
14 * low level function in the respective pgtable-* files
15 */
16extern void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
17		       pte_t pte);
18
19
20#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
21extern int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address,
22				 pte_t *ptep, pte_t entry, int dirty);
23
24struct file;
25extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
26				     unsigned long size, pgprot_t vma_prot);
27#define __HAVE_PHYS_MEM_ACCESS_PROT
28
29/*
30 * This gets called at the end of handling a page fault, when
31 * the kernel has put a new PTE into the page table for the process.
32 * We use it to ensure coherency between the i-cache and d-cache
33 * for the page which has just been mapped in.
34 * On machines which use an MMU hash table, we use this to put a
35 * corresponding HPTE into the hash table ahead of time, instead of
36 * waiting for the inevitable extra hash-table miss exception.
37 */
38void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep);
39
40#endif /* __ASSEMBLY__ */
41#endif
42