2 files changed, 9 insertions, 1 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
diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c
index 4b66a1ece6d8..1b4354db51bb 100644
--- a/arch/powerpc/mm/fsl_booke_mmu.c
+++ b/arch/powerpc/mm/fsl_booke_mmu.c
@@ -137,7 +137,8 @@ static void settlbcam(int index, unsigned long virt, phys_addr_t phys,
         if (mmu_has_feature(MMU_FTR_BIG_PHYS))
                 TLBCAM[index].MAS7 = (u64)phys >> 32;
 
-        if (flags & _PAGE_USER) {
+        /* Below is unlikely -- only for large user pages or similar */
+        if (pte_user(flags)) {
            TLBCAM[index].MAS3 |= MAS3_UX | MAS3_UR;
            TLBCAM[index].MAS3 |= ((flags & _PAGE_RW) ? MAS3_UW : 0);
         }