Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into devel-stable

[cascardo/linux.git] / arch / powerpc / mm / tlb_hash64.c

diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c
index 282d930..1ec0657 100644 (file)
--- a/arch/powerpc/mm/tlb_hash64.c
+++ b/arch/powerpc/mm/tlb_hash64.c
@@ -63,15 +63,21 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
        if (huge) {
 #ifdef CONFIG_HUGETLB_PAGE
                psize = get_slice_psize(mm, addr);
+               /* Mask the address for the correct page size */
+               addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1);
 #else
                BUG();
                psize = pte_pagesize_index(mm, addr, pte); /* shutup gcc */
 #endif
-       } else
+       } else {
                psize = pte_pagesize_index(mm, addr, pte);
+               /* Mask the address for the standard page size.  If we
+                * have a 64k page kernel, but the hardware does not
+                * support 64k pages, this might be different from the
+                * hardware page size encoded in the slice table. */
+               addr &= PAGE_MASK;
+       }
 
-       /* Mask the address for the correct page size */
-       addr &= ~((1UL << mmu_psize_defs[psize].shift) - 1);
 
        /* Build full vaddr */
        if (!is_kernel_addr(addr)) {