[PATCH] ppc64: Fix bug in SLB miss handler for hugepages

[pandora-kernel.git] / include / asm-ppc64 / pgtable-4k.h

diff --git a/include/asm-ppc64/pgtable-4k.h b/include/asm-ppc64/pgtable-4k.h
index c883a27..e9590c0 100644 (file)
--- a/include/asm-ppc64/pgtable-4k.h
+++ b/include/asm-ppc64/pgtable-4k.h
@@ -23,6 +23,9 @@
 #define PMD_SIZE       (1UL << PMD_SHIFT)
 #define PMD_MASK       (~(PMD_SIZE-1))
 
+/* With 4k base page size, hugepage PTEs go at the PMD level */
+#define MIN_HUGEPTE_SHIFT      PMD_SHIFT
+
 /* PUD_SHIFT determines what a third-level page table entry can map */
 #define PUD_SHIFT      (PMD_SHIFT + PMD_INDEX_SIZE)
 #define PUD_SIZE       (1UL << PUD_SHIFT)