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1 | #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H |
2 | #define _ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H | |
3 | ||
4 | #ifndef __ASSEMBLY__ | |
5 | #ifdef CONFIG_HUGETLB_PAGE | |
6 | /* | |
7 | * We have PGD_INDEX_SIZ = 12 and PTE_INDEX_SIZE = 8, so that we can have | |
8 | * 16GB hugepage pte in PGD and 16MB hugepage pte at PMD; | |
9 | * | |
10 | * Defined in such a way that we can optimize away code block at build time | |
11 | * if CONFIG_HUGETLB_PAGE=n. | |
12 | */ | |
13 | static inline int pmd_huge(pmd_t pmd) | |
14 | { | |
15 | /* | |
16 | * leaf pte for huge page | |
17 | */ | |
18 | return !!(pmd_val(pmd) & _PAGE_PTE); | |
19 | } | |
20 | ||
21 | static inline int pud_huge(pud_t pud) | |
22 | { | |
23 | /* | |
24 | * leaf pte for huge page | |
25 | */ | |
26 | return !!(pud_val(pud) & _PAGE_PTE); | |
27 | } | |
28 | ||
29 | static inline int pgd_huge(pgd_t pgd) | |
30 | { | |
31 | /* | |
32 | * leaf pte for huge page | |
33 | */ | |
34 | return !!(pgd_val(pgd) & _PAGE_PTE); | |
35 | } | |
36 | #define pgd_huge pgd_huge | |
37 | ||
38 | #ifdef CONFIG_DEBUG_VM | |
39 | extern int hugepd_ok(hugepd_t hpd); | |
40 | #define is_hugepd(hpd) (hugepd_ok(hpd)) | |
41 | #else | |
42 | /* | |
43 | * With 64k page size, we have hugepage ptes in the pgd and pmd entries. We don't | |
44 | * need to setup hugepage directory for them. Our pte and page directory format | |
45 | * enable us to have this enabled. | |
46 | */ | |
47 | static inline int hugepd_ok(hugepd_t hpd) | |
48 | { | |
49 | return 0; | |
50 | } | |
51 | #define is_hugepd(pdep) 0 | |
52 | #endif /* CONFIG_DEBUG_VM */ | |
53 | ||
54 | #endif /* CONFIG_HUGETLB_PAGE */ | |
55 | ||
6cc1a0ee AK |
56 | static inline int remap_4k_pfn(struct vm_area_struct *vma, unsigned long addr, |
57 | unsigned long pfn, pgprot_t prot) | |
58 | { | |
59 | if (radix_enabled()) | |
60 | BUG(); | |
61 | return hash__remap_4k_pfn(vma, addr, pfn, prot); | |
6cc1a0ee | 62 | } |
a9252aae AK |
63 | #endif /* __ASSEMBLY__ */ |
64 | #endif /*_ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H */ |