[PATCH] AGP performance fixes

[pandora-kernel.git] / drivers / char / agp / i460-agp.c

diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
index 58944cd..be2e569 100644 (file)
--- a/drivers/char/agp/i460-agp.c
+++ b/drivers/char/agp/i460-agp.c
@@ -514,9 +514,10 @@ static void *i460_alloc_page (struct agp_bridge_data *bridge)
 {
        void *page;
 
-       if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT)
+       if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
                page = agp_generic_alloc_page(agp_bridge);
-       else
+               global_flush_tlb();
+       } else
                /* Returning NULL would cause problems */
                /* AK: really dubious code. */
                page = (void *)~0UL;
@@ -525,8 +526,10 @@ static void *i460_alloc_page (struct agp_bridge_data *bridge)
 
 static void i460_destroy_page (void *page)
 {
-       if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT)
+       if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
                agp_generic_destroy_page(page);
+               global_flush_tlb();
+       }
 }
 
 #endif /* I460_LARGE_IO_PAGES */