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Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/hash-64k.h')
-rw-r--r--arch/powerpc/include/asm/book3s/64/hash-64k.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h
index f3dd21efa2ea..214219dff87c 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h
@@ -4,10 +4,14 @@
#define H_PTE_INDEX_SIZE 8
#define H_PMD_INDEX_SIZE 5
#define H_PUD_INDEX_SIZE 5
-#define H_PGD_INDEX_SIZE 12
+#define H_PGD_INDEX_SIZE 15
-#define H_PAGE_COMBO 0x00001000 /* this is a combo 4k page */
-#define H_PAGE_4K_PFN 0x00002000 /* PFN is for a single 4k page */
+/*
+ * 64k aligned address free up few of the lower bits of RPN for us
+ * We steal that here. For more deatils look at pte_pfn/pfn_pte()
+ */
+#define H_PAGE_COMBO _RPAGE_RPN0 /* this is a combo 4k page */
+#define H_PAGE_4K_PFN _RPAGE_RPN1 /* PFN is for a single 4k page */
/*
* We need to differentiate between explicit huge page and THP huge
* page, since THP huge page also need to track real subpage details