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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SPARC64_PGALLOC_H
#define _SPARC64_PGALLOC_H
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <asm/spitfire.h>
#include <asm/cpudata.h>
#include <asm/cacheflush.h>
#include <asm/page.h>
/* Page table allocation/freeing. */
extern struct kmem_cache *pgtable_cache;
static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
{
pgd_set(pgd, pud);
}
#define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD)
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
kmem_cache_free(pgtable_cache, pgd);
}
static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
{
pud_set(pud, pmd);
}
#define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
}
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
{
kmem_cache_free(pgtable_cache, pud);
}
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
}
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
{
kmem_cache_free(pgtable_cache, pmd);
}
pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
pgtable_t pte_alloc_one(struct mm_struct *mm);
void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
void pte_free(struct mm_struct *mm, pgtable_t ptepage);
#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE)
#define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE)
#define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD))
#define check_pgt_cache() do { } while (0)
void pgtable_free(void *table, bool is_page);
#ifdef CONFIG_SMP
struct mmu_gather;
void tlb_remove_table(struct mmu_gather *, void *);
static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
{
unsigned long pgf = (unsigned long)table;
if (is_page)
pgf |= 0x1UL;
tlb_remove_table(tlb, (void *)pgf);
}
static inline void __tlb_remove_table(void *_table)
{
void *table = (void *)((unsigned long)_table & ~0x1UL);
bool is_page = false;
if ((unsigned long)_table & 0x1UL)
is_page = true;
pgtable_free(table, is_page);
}
#else /* CONFIG_SMP */
static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
{
pgtable_free(table, is_page);
}
#endif /* !CONFIG_SMP */
static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte,
unsigned long address)
{
pgtable_free_tlb(tlb, pte, true);
}
#define __pmd_free_tlb(tlb, pmd, addr) \
pgtable_free_tlb(tlb, pmd, false)
#define __pud_free_tlb(tlb, pud, addr) \
pgtable_free_tlb(tlb, pud, false)
#endif /* _SPARC64_PGALLOC_H */
|
