1#ifndef _SPARC_PGALLOC_H
2#define _SPARC_PGALLOC_H
3
4#include <linux/kernel.h>
5#include <linux/sched.h>
6
7#include <asm/pgtsrmmu.h>
8#include <asm/pgtable.h>
9#include <asm/vaddrs.h>
10#include <asm/page.h>
11
12struct page;
13
14void *srmmu_get_nocache(int size, int align);
15void srmmu_free_nocache(void *addr, int size);
16
17extern struct resource sparc_iomap;
18
19#define check_pgt_cache()	do { } while (0)
20
21pgd_t *get_pgd_fast(void);
22static inline void free_pgd_fast(pgd_t *pgd)
23{
24	srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
25}
26
27#define pgd_free(mm, pgd)	free_pgd_fast(pgd)
28#define pgd_alloc(mm)	get_pgd_fast()
29
30static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
31{
32	unsigned long pa = __nocache_pa((unsigned long)pmdp);
33
34	set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
35}
36
37#define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
38
39static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
40				   unsigned long address)
41{
42	return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
43				 SRMMU_PMD_TABLE_SIZE);
44}
45
46static inline void free_pmd_fast(pmd_t * pmd)
47{
48	srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
49}
50
51#define pmd_free(mm, pmd)		free_pmd_fast(pmd)
52#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
53
54void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
55#define pmd_pgtable(pmd) pmd_page(pmd)
56
57void pmd_set(pmd_t *pmdp, pte_t *ptep);
58#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
59
60pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
61
62static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
63					  unsigned long address)
64{
65	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
66}
67
68
69static inline void free_pte_fast(pte_t *pte)
70{
71	srmmu_free_nocache(pte, PTE_SIZE);
72}
73
74#define pte_free_kernel(mm, pte)	free_pte_fast(pte)
75
76void pte_free(struct mm_struct * mm, pgtable_t pte);
77#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, pte)
78
79#endif /* _SPARC_PGALLOC_H */
80