Merge branch 'topic/paca' into next

[linux-2.6-block.git] / arch / powerpc / include / asm / book3s / 64 / hash.h

diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index b1ace9619e94e2c3e20f82dff65f5136e6431d43..cc8cd656ccfe9fb80bc67e15ce3cc45c7e74be16 100644 (file)
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -23,7 +23,8 @@
                                 H_PUD_INDEX_SIZE + H_PGD_INDEX_SIZE + PAGE_SHIFT)
 #define H_PGTABLE_RANGE                (ASM_CONST(1) << H_PGTABLE_EADDR_SIZE)
 
-#if defined(CONFIG_TRANSPARENT_HUGEPAGE) &&  defined(CONFIG_PPC_64K_PAGES)
+#if (defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE)) && \
+       defined(CONFIG_PPC_64K_PAGES)
 /*
  * only with hash 64k we need to use the second half of pmd page table
  * to store pointer to deposited pgtable_t
@@ -32,6 +33,16 @@
 #else
 #define H_PMD_CACHE_INDEX      H_PMD_INDEX_SIZE
 #endif
+/*
+ * We store the slot details in the second half of page table.
+ * Increase the pud level table so that hugetlb ptes can be stored
+ * at pud level.
+ */
+#if defined(CONFIG_HUGETLB_PAGE) &&  defined(CONFIG_PPC_64K_PAGES)
+#define H_PUD_CACHE_INDEX      (H_PUD_INDEX_SIZE + 1)
+#else
+#define H_PUD_CACHE_INDEX      (H_PUD_INDEX_SIZE)
+#endif
 /*
  * Define the address range of the kernel non-linear virtual area
  */