summaryrefslogtreecommitdiffstats
path: root/arch/um/include/asm/pgalloc.h
blob: de5e31c64793d7612daf27ec78a9a3e2e5f5b126 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/* SPDX-License-Identifier: GPL-2.0 */
/* 
 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
 * Copyright 2003 PathScale, Inc.
 * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h
 */

#ifndef __UM_PGALLOC_H
#define __UM_PGALLOC_H

#include <linux/mm.h>

#include <asm-generic/pgalloc.h>

#define pmd_populate_kernel(mm, pmd, pte) \
	set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))

#define pmd_populate(mm, pmd, pte) 				\
	set_pmd(pmd, __pmd(_PAGE_TABLE +			\
		((unsigned long long)page_to_pfn(pte) <<	\
			(unsigned long long) PAGE_SHIFT)))

/*
 * Allocate and free page tables.
 */
extern pgd_t *pgd_alloc(struct mm_struct *);

#define __pte_free_tlb(tlb, pte, address)			\
do {								\
	pagetable_pte_dtor(page_ptdesc(pte));			\
	tlb_remove_page_ptdesc((tlb), (page_ptdesc(pte)));	\
} while (0)

#ifdef CONFIG_3_LEVEL_PGTABLES

#define __pmd_free_tlb(tlb, pmd, address)			\
do {								\
	pagetable_pmd_dtor(virt_to_ptdesc(pmd));			\
	tlb_remove_page_ptdesc((tlb), virt_to_ptdesc(pmd));	\
} while (0)

#endif

#endif