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-rw-r--r--include/asm-ppc64/pgtable-4k.h3
-rw-r--r--include/asm-ppc64/pgtable-64k.h3
2 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-ppc64/pgtable-4k.h b/include/asm-ppc64/pgtable-4k.h
index c883a2748558..e9590c06ad92 100644
--- 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)
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)