[XTENSA] Flush the page-address in update-mmu instead of user-address

The TLB entry for the user address doesn't exist at the time we
want to flush the caches, so use the page address. Note that processor
configurations with cache-aliasing issues are treated separately.

Signed-off-by: Chris Zankel <chris@zankel.net>

diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 42bfb69..3ba990c 100644 (file)
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -180,9 +180,9 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t pte)
 #else
        if (!PageReserved(page) && !test_bit(PG_arch_1, &page->flags)
            && (vma->vm_flags & VM_EXEC) != 0) {
-               unsigned long vaddr = addr & PAGE_MASK;
-               __flush_dcache_page(vaddr);
-               __invalidate_icache_page(vaddr);
+               unsigned long paddr = (unsigned long) page_address(page);
+               __flush_dcache_page(paddr);
+               __invalidate_icache_page(paddr);
                set_bit(PG_arch_1, &page->flags);
        }
 #endif