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1/* $Id: pgalloc.h,v 1.30 2001/12/21 04:56:17 davem Exp $ */
2#ifndef _SPARC64_PGALLOC_H
3#define _SPARC64_PGALLOC_H
4
5#include <linux/kernel.h>
6#include <linux/sched.h>
7#include <linux/mm.h>
8#include <linux/slab.h>
9#include <linux/quicklist.h>
10
11#include <asm/spitfire.h>
12#include <asm/cpudata.h>
13#include <asm/cacheflush.h>
14#include <asm/page.h>
15
16/* Page table allocation/freeing. */
17
18static inline pgd_t *pgd_alloc(struct mm_struct *mm)
19{
20 return quicklist_alloc(0, GFP_KERNEL, NULL);
21}
22
23static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
24{
25 quicklist_free(0, NULL, pgd);
26}
27
28#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
29
30static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
31{
32 return quicklist_alloc(0, GFP_KERNEL, NULL);
33}
34
35static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
36{
37 quicklist_free(0, NULL, pmd);
38}
39
40static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
41 unsigned long address)
42{
43 return quicklist_alloc(0, GFP_KERNEL, NULL);
44}
45
46static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
47 unsigned long address)
48{
49 struct page *page;
50 void *pg;
51
52 pg = quicklist_alloc(0, GFP_KERNEL, NULL);
53 if (!pg)
54 return NULL;
55 page = virt_to_page(pg);
56 pgtable_page_ctor(page);
57 return page;
58}
59
60static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
61{
62 quicklist_free(0, NULL, pte);
63}
64
65static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
66{
67 pgtable_page_dtor(ptepage);
68 quicklist_free_page(0, NULL, ptepage);
69}
70
71
72#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
73#define pmd_populate(MM,PMD,PTE_PAGE) \
74 pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
75#define pmd_pgtable(pmd) pmd_page(pmd)
76
77static inline void check_pgt_cache(void)
78{
79 quicklist_trim(0, NULL, 25, 16);
80}
81
82#endif /* _SPARC64_PGALLOC_H */