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
|
#ifndef _SPARC_PGALLOC_H
#define _SPARC_PGALLOC_H
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/pgtsrmmu.h>
#include <asm/btfixup.h>
#include <asm/pgtable.h>
#include <asm/vaddrs.h>
#include <asm/page.h>
struct page;
extern struct pgtable_cache_struct {
unsigned long *pgd_cache;
unsigned long *pte_cache;
unsigned long pgtable_cache_sz;
unsigned long pgd_cache_sz;
} pgt_quicklists;
unsigned long srmmu_get_nocache(int size, int align);
void srmmu_free_nocache(unsigned long vaddr, int size);
#define pgd_quicklist (pgt_quicklists.pgd_cache)
#define pmd_quicklist ((unsigned long *)0)
#define pte_quicklist (pgt_quicklists.pte_cache)
#define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz)
#define pgd_cache_size (pgt_quicklists.pgd_cache_sz)
#define check_pgt_cache() do { } while (0)
pgd_t *get_pgd_fast(void);
static inline void free_pgd_fast(pgd_t *pgd)
{
srmmu_free_nocache((unsigned long)pgd, SRMMU_PGD_TABLE_SIZE);
}
#define pgd_free(mm, pgd) free_pgd_fast(pgd)
#define pgd_alloc(mm) get_pgd_fast()
static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
{
unsigned long pa = __nocache_pa((unsigned long)pmdp);
set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
}
#define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
unsigned long address)
{
return (pmd_t *)srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
SRMMU_PMD_TABLE_SIZE);
}
static inline void free_pmd_fast(pmd_t * pmd)
{
srmmu_free_nocache((unsigned long)pmd, SRMMU_PMD_TABLE_SIZE);
}
#define pmd_free(mm, pmd) free_pmd_fast(pmd)
#define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd)
void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
#define pmd_pgtable(pmd) pmd_page(pmd)
void pmd_set(pmd_t *pmdp, pte_t *ptep);
#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
return (pte_t *)srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
}
static inline void free_pte_fast(pte_t *pte)
{
srmmu_free_nocache((unsigned long)pte, PTE_SIZE);
}
#define pte_free_kernel(mm, pte) free_pte_fast(pte)
void pte_free(struct mm_struct * mm, pgtable_t pte);
#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte)
#endif /* _SPARC_PGALLOC_H */
|
