1
2#ifndef _ASM_POWERPC_PGALLOC_H
3#define _ASM_POWERPC_PGALLOC_H
4
5#include <linux/mm.h>
6
7#ifndef MODULE
8static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
9{
10 if (unlikely(mm == &init_mm))
11 return gfp;
12 return gfp | __GFP_ACCOUNT;
13}
14#else
15static inline gfp_t pgtable_gfp_flags(struct mm_struct *mm, gfp_t gfp)
16{
17 return gfp | __GFP_ACCOUNT;
18}
19#endif
20
21#define PGALLOC_GFP (GFP_KERNEL | __GFP_ZERO)
22
23pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel);
24
25static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
26{
27 return (pte_t *)pte_fragment_alloc(mm, 1);
28}
29
30static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
31{
32 return (pgtable_t)pte_fragment_alloc(mm, 0);
33}
34
35void pte_frag_destroy(void *pte_frag);
36void pte_fragment_free(unsigned long *table, int kernel);
37
38static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
39{
40 pte_fragment_free((unsigned long *)pte, 1);
41}
42
43static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
44{
45 pte_fragment_free((unsigned long *)ptepage, 0);
46}
47
48
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59
60
61
62#define MAX_PGTABLE_INDEX_SIZE 0xf
63
64extern struct kmem_cache *pgtable_cache[];
65#define PGT_CACHE(shift) pgtable_cache[shift]
66
67#ifdef CONFIG_PPC_BOOK3S
68#include <asm/book3s/pgalloc.h>
69#else
70#include <asm/nohash/pgalloc.h>
71#endif
72
73#endif
74