aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/include/asm/pgalloc.h
blob: c2c6fd438840ff8cbfd1157cc2a66c5e7fb76fe6 (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
46
47
48
49
50
51
52
53
54
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_PGALLOC_H
#define _ASM_POWERPC_PGALLOC_H

#include <linux/mm.h>

#ifndef MODULE
static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
{
	if (unlikely(mm == &init_mm))
		return gfp;
	return gfp | __GFP_ACCOUNT;
}
#else /* !MODULE */
static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
{
	return gfp | __GFP_ACCOUNT;
}
#endif /* MODULE */

#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)

pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel);

static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
{
	return (pte_t *)pte_fragment_alloc(mm, 1);
}

static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
{
	return (pgtable_t)pte_fragment_alloc(mm, 0);
}

void pte_frag_destroy(void *pte_frag);
void pte_fragment_free(unsigned long *table, int kernel);

static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
	pte_fragment_free((unsigned long *)pte, 1);
}

static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
{
	pte_fragment_free((unsigned long *)ptepage, 0);
}

#ifdef CONFIG_PPC_BOOK3S
#include <asm/book3s/pgalloc.h>
#else
#include <asm/nohash/pgalloc.h>
#endif

#endif /* _ASM_POWERPC_PGALLOC_H */