1 files changed, 5 insertions, 1 deletions

diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 2bac8c60ad61..0bae862e9a55 100644
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/arch/x86_64/kernel/pci-gart.c
@@ -519,7 +519,11 @@ static __init int init_k8_gatt(struct agp_kern_info *info)
         gatt_size = (aper_size >> PAGE_SHIFT) * sizeof(u32); 
         gatt = (void *)__get_free_pages(GFP_KERNEL, get_order(gatt_size)); 
         if (!gatt) 
-                panic("Cannot allocate GATT table"); 
+                panic("Cannot allocate GATT table");
+        if (change_page_attr_addr((unsigned long)gatt, gatt_size >> PAGE_SHIFT, PAGE_KERNEL_NOCACHE))
+                panic("Could not set GART PTEs to uncacheable pages");
+        global_flush_tlb();
+
         memset(gatt, 0, gatt_size); 
         agp_gatt_table = gatt;