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-rw-r--r--arch/powerpc/include/asm/page.h19
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__ */