Pull novell-bugzilla-156426 into release branch
[linux-2.6] / include / asm-sparc64 / pgalloc.h
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/config.h>
6 #include <linux/kernel.h>
7 #include <linux/sched.h>
8 #include <linux/mm.h>
9 #include <linux/slab.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 extern kmem_cache_t *pgtable_cache;
18
19 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
20 {
21         return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
22 }
23
24 static inline void pgd_free(pgd_t *pgd)
25 {
26         kmem_cache_free(pgtable_cache, pgd);
27 }
28
29 #define pud_populate(MM, PUD, PMD)      pud_set(PUD, PMD)
30
31 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
32 {
33         return kmem_cache_alloc(pgtable_cache,
34                                 GFP_KERNEL|__GFP_REPEAT);
35 }
36
37 static inline void pmd_free(pmd_t *pmd)
38 {
39         kmem_cache_free(pgtable_cache, pmd);
40 }
41
42 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
43                                           unsigned long address)
44 {
45         return kmem_cache_alloc(pgtable_cache,
46                                 GFP_KERNEL|__GFP_REPEAT);
47 }
48
49 static inline struct page *pte_alloc_one(struct mm_struct *mm,
50                                          unsigned long address)
51 {
52         return virt_to_page(pte_alloc_one_kernel(mm, address));
53 }
54                 
55 static inline void pte_free_kernel(pte_t *pte)
56 {
57         kmem_cache_free(pgtable_cache, pte);
58 }
59
60 static inline void pte_free(struct page *ptepage)
61 {
62         pte_free_kernel(page_address(ptepage));
63 }
64
65
66 #define pmd_populate_kernel(MM, PMD, PTE)       pmd_set(PMD, PTE)
67 #define pmd_populate(MM,PMD,PTE_PAGE)           \
68         pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
69
70 #define check_pgt_cache()       do { } while (0)
71
72 #endif /* _SPARC64_PGALLOC_H */