Revert "reduce tlb/cache flush times of agpgart memory allocation"

This reverts commit 466ae83742.

drivers/char/agp/agp.h

@@ -30,10 +30,6 @@
 #define _AGP_BACKEND_PRIV_H 1
 
 #include <asm/agp.h>	/* for flush_agp_cache() */
-#ifndef map_page_into_agp_noflush
-#define map_page_into_agp_noflush(page) map_page_into_agp(page)
-#define map_page_into_agp_global_flush()
-#endif
 
 #define PFX "agpgart: "
 

drivers/char/agp/generic.c

@@ -274,7 +274,6 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
 		new->memory[i] = virt_to_gart(addr);
 		new->page_count++;
 	}
-	map_page_into_agp_global_flush();
 	new->bridge = bridge;
 
 	return new;
@@ -1187,8 +1186,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
 	if (page == NULL)
 		return NULL;
 
-	/* agp_allocate_memory will do flush */
-	map_page_into_agp_noflush(page);
+	map_page_into_agp(page);
 
 	get_page(page);
 	atomic_inc(&agp_bridge->current_memory_agp);

include/asm-x86/agp.h

@@ -15,9 +15,6 @@
 #define map_page_into_agp(page) set_pages_uc(page, 1)
 #define unmap_page_from_agp(page) set_pages_wb(page, 1)
 
-#define map_page_into_agp_noflush(page) set_pages_uc_noflush(page, 1)
-#define map_page_into_agp_global_flush() set_memory_flush_all()
-
 /*
  * Could use CLFLUSH here if the cpu supports it. But then it would
  * need to be called for each cacheline of the whole page so it may