1 #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H
2 #define _ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H
5 #ifdef CONFIG_HUGETLB_PAGE
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;
10 * Defined in such a way that we can optimize away code block at build time
11 * if CONFIG_HUGETLB_PAGE=n.
13 static inline int pmd_huge(pmd_t pmd)
16 * leaf pte for huge page
18 return !!(pmd_val(pmd) & _PAGE_PTE);
21 static inline int pud_huge(pud_t pud)
24 * leaf pte for huge page
26 return !!(pud_val(pud) & _PAGE_PTE);
29 static inline int pgd_huge(pgd_t pgd)
32 * leaf pte for huge page
34 return !!(pgd_val(pgd) & _PAGE_PTE);
36 #define pgd_huge pgd_huge
38 #ifdef CONFIG_DEBUG_VM
39 extern int hugepd_ok(hugepd_t hpd);
40 #define is_hugepd(hpd) (hugepd_ok(hpd))
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.
47 static inline int hugepd_ok(hugepd_t hpd)
51 #define is_hugepd(pdep) 0
52 #endif /* CONFIG_DEBUG_VM */
54 #endif /* CONFIG_HUGETLB_PAGE */
56 static inline int remap_4k_pfn(struct vm_area_struct *vma, unsigned long addr,
57 unsigned long pfn, pgprot_t prot)
61 return hash__remap_4k_pfn(vma, addr, pfn, prot);
63 #endif /* __ASSEMBLY__ */
64 #endif /*_ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H */