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-rw-r--r--arch/powerpc/include/asm/pte-common.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h
index f2b370180a09..76bb195e4f24 100644
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h
@@ -171,6 +171,13 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void);
/* Make modules code happy. We don't set RO yet */
#define PAGE_KERNEL_EXEC PAGE_KERNEL_X
+/*
+ * Don't just check for any non zero bits in __PAGE_USER, since for book3e
+ * and PTE_64BIT, PAGE_KERNEL_X contains _PAGE_BAP_SR which is also in
+ * _PAGE_USER. Need to explictly match _PAGE_BAP_UR bit in that case too.
+ */
+#define pte_user(val) ((val & _PAGE_USER) == _PAGE_USER)
+
/* Advertise special mapping type for AGP */
#define PAGE_AGP (PAGE_KERNEL_NC)
#define HAVE_PAGE_AGP