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Diffstat (limited to 'include/asm-ppc64/pgtable-64k.h')
-rw-r--r--include/asm-ppc64/pgtable-64k.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-ppc64/pgtable-64k.h b/include/asm-ppc64/pgtable-64k.h
index c5f437c86b3c..154f1840ece4 100644
--- a/include/asm-ppc64/pgtable-64k.h
+++ b/include/asm-ppc64/pgtable-64k.h
@@ -14,6 +14,9 @@
#define PTRS_PER_PMD (1 << PMD_INDEX_SIZE)
#define PTRS_PER_PGD (1 << PGD_INDEX_SIZE)
+/* With 4k base page size, hugepage PTEs go at the PMD level */
+#define MIN_HUGEPTE_SHIFT PAGE_SHIFT
+
/* PMD_SHIFT determines what a second-level page table entry can map */
#define PMD_SHIFT (PAGE_SHIFT + PTE_INDEX_SIZE)
#define PMD_SIZE (1UL << PMD_SHIFT)