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 */
13static inline int pmd_huge(pmd_t pmd)
14{
15	/*
16	 * leaf pte for huge page
17	 */
18	return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
19}
20
21static inline int pud_huge(pud_t pud)
22{
23	/*
24	 * leaf pte for huge page
25	 */
26	return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
27}
28
29static inline int pgd_huge(pgd_t pgd)
30{
31	/*
32	 * leaf pte for huge page
33	 */
34	return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE));
35}
36#define pgd_huge pgd_huge
37
38#ifdef CONFIG_DEBUG_VM
39extern 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 */
47static 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
56static 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);
62}
63#endif	/* __ASSEMBLY__ */
64#endif /*_ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H */