1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ALPHA_PGALLOC_H
 3#define _ALPHA_PGALLOC_H
 4
 5#include <linux/mm.h>
 6#include <linux/mmzone.h>
 7
 8#include <asm-generic/pgalloc.h>
 9
10/*      
11 * Allocate and free page tables. The xxx_kernel() versions are
12 * used to allocate a kernel page table - this turns on ASN bits
13 * if any.
14 */
15
16static inline void
17pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
18{
19	pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
20}
 
21
22static inline void
23pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
24{
25	pmd_set(pmd, pte);
26}
27
28static inline void
29pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
30{
31	pud_set(pud, pmd);
32}
33
34extern pgd_t *pgd_alloc(struct mm_struct *mm);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
35
36#endif /* _ALPHA_PGALLOC_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ALPHA_PGALLOC_H
 3#define _ALPHA_PGALLOC_H
 4
 5#include <linux/mm.h>
 6#include <linux/mmzone.h>
 7
 8#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */
 9
10/*      
11 * Allocate and free page tables. The xxx_kernel() versions are
12 * used to allocate a kernel page table - this turns on ASN bits
13 * if any.
14 */
15
16static inline void
17pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
18{
19	pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
20}
21#define pmd_pgtable(pmd) pmd_page(pmd)
22
23static inline void
24pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
25{
26	pmd_set(pmd, pte);
27}
28
29static inline void
30pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd)
31{
32	pgd_set(pgd, pmd);
33}
34
35extern pgd_t *pgd_alloc(struct mm_struct *mm);
36
37static inline void
38pgd_free(struct mm_struct *mm, pgd_t *pgd)
39{
40	free_page((unsigned long)pgd);
41}
42
43static inline pmd_t *
44pmd_alloc_one(struct mm_struct *mm, unsigned long address)
45{
46	pmd_t *ret = (pmd_t *)__get_free_page(GFP_PGTABLE_USER);
47	return ret;
48}
49
50static inline void
51pmd_free(struct mm_struct *mm, pmd_t *pmd)
52{
53	free_page((unsigned long)pmd);
54}
55
56#endif /* _ALPHA_PGALLOC_H */