1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index c4a38715c6f9..19f242b50781 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -57,7 +57,8 @@ int map_page_into_agp(struct page *page)
 {
         int i;
         i = change_page_attr(page, 1, PAGE_KERNEL_NOCACHE);
-        global_flush_tlb();
+        /* Caller's responsibility to call global_flush_tlb() for
+         * performance reasons */
         return i;
 }
 EXPORT_SYMBOL_GPL(map_page_into_agp);
@@ -66,7 +67,8 @@ int unmap_page_from_agp(struct page *page)
 {
         int i;
         i = change_page_attr(page, 1, PAGE_KERNEL);
-        global_flush_tlb();
+        /* Caller's responsibility to call global_flush_tlb() for
+         * performance reasons */
         return i;
 }
 EXPORT_SYMBOL_GPL(unmap_page_from_agp);
@@ -153,6 +155,7 @@ void agp_free_memory(struct agp_memory *curr)
                 for (i = 0; i < curr->page_count; i++) {
                         curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]));
                 }
+                global_flush_tlb();
         }
         agp_free_key(curr->key);
         vfree(curr->memory);
@@ -210,7 +213,9 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
                 new->memory[i] = virt_to_gart(addr);
                 new->page_count++;
         }
-       new->bridge = bridge;
+        global_flush_tlb();
+
+        new->bridge = bridge;
 
         flush_agp_mappings();