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41 lines
1.4 KiB
41 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_POWERPC_BOOK3S_PGTABLE_H |
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#define _ASM_POWERPC_BOOK3S_PGTABLE_H |
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#ifdef CONFIG_PPC64 |
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#include <asm/book3s/64/pgtable.h> |
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#else |
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#include <asm/book3s/32/pgtable.h> |
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#endif |
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#define FIRST_USER_ADDRESS 0UL |
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#ifndef __ASSEMBLY__ |
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/* Insert a PTE, top-level function is out of line. It uses an inline |
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* low level function in the respective pgtable-* files |
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*/ |
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extern void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, |
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pte_t pte); |
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#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS |
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extern int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address, |
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pte_t *ptep, pte_t entry, int dirty); |
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struct file; |
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extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, |
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unsigned long size, pgprot_t vma_prot); |
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#define __HAVE_PHYS_MEM_ACCESS_PROT |
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/* |
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* This gets called at the end of handling a page fault, when |
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* the kernel has put a new PTE into the page table for the process. |
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* We use it to ensure coherency between the i-cache and d-cache |
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* for the page which has just been mapped in. |
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* On machines which use an MMU hash table, we use this to put a |
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* corresponding HPTE into the hash table ahead of time, instead of |
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* waiting for the inevitable extra hash-table miss exception. |
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*/ |
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void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep); |
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#endif /* __ASSEMBLY__ */ |
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#endif
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