diff options
Diffstat (limited to 'arch/powerpc/include/asm/page.h')
| -rw-r--r-- | arch/powerpc/include/asm/page.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index f072e974f8a..988c812aab5 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -249,6 +249,7 @@ extern long long virt_phys_offset; #define is_kernel_addr(x) ((x) >= PAGE_OFFSET) #endif +#ifndef CONFIG_PPC_BOOK3S_64 /* * Use the top bit of the higher-level page table entries to indicate whether * the entries we point to contain hugepages. This works because we know that @@ -260,6 +261,7 @@ extern long long virt_phys_offset; #else #define PD_HUGE 0x80000000 #endif +#endif /* CONFIG_PPC_BOOK3S_64 */ /* * Some number of bits at the level of the page table that points to @@ -354,14 +356,27 @@ typedef unsigned long pgprot_t; typedef struct { signed long pd; } hugepd_t; #ifdef CONFIG_HUGETLB_PAGE +#ifdef CONFIG_PPC_BOOK3S_64 +static inline int hugepd_ok(hugepd_t hpd) +{ + /* + * hugepd pointer, bottom two bits == 00 and next 4 bits + * indicate size of table + */ + return (((hpd.pd & 0x3) == 0x0) && ((hpd.pd & HUGEPD_SHIFT_MASK) != 0)); +} +#else static inline int hugepd_ok(hugepd_t hpd) { return (hpd.pd > 0); } +#endif #define is_hugepd(pdep) (hugepd_ok(*((hugepd_t *)(pdep)))) +int pgd_huge(pgd_t pgd); #else /* CONFIG_HUGETLB_PAGE */ #define is_hugepd(pdep) 0 +#define pgd_huge(pgd) 0 #endif /* CONFIG_HUGETLB_PAGE */ struct page; @@ -378,7 +393,11 @@ void arch_free_page(struct page *page, int order); struct vm_area_struct; +#ifdef CONFIG_PPC_64K_PAGES +typedef pte_t *pgtable_t; +#else typedef struct page *pgtable_t; +#endif #include <asm-generic/memory_model.h> #endif /* __ASSEMBLY__ */ |