x86: remove flush_agp_mappings()

Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

drivers/char/agp/backend.c

@@ -147,7 +147,6 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
 			printk(KERN_ERR PFX "unable to get memory for scratch page.\n");
 			return -ENOMEM;
 		}
-		flush_agp_mappings();
 
 		bridge->scratch_page_real = virt_to_gart(addr);
 		bridge->scratch_page =
@@ -191,7 +190,6 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
 	if (bridge->driver->needs_scratch_page) {
 		bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
 						 AGP_PAGE_DESTROY_UNMAP);
-		flush_agp_mappings();
 		bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
 						 AGP_PAGE_DESTROY_FREE);
 	}
@@ -219,7 +217,6 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
 	    bridge->driver->needs_scratch_page) {
 		bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
 						 AGP_PAGE_DESTROY_UNMAP);
-		flush_agp_mappings();
 		bridge->driver->agp_destroy_page(gart_to_virt(bridge->scratch_page_real),
 						 AGP_PAGE_DESTROY_FREE);
 	}

drivers/char/agp/generic.c

@@ -197,7 +197,6 @@ 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]), AGP_PAGE_DESTROY_UNMAP);
 		}
-		flush_agp_mappings();
 		for (i = 0; i < curr->page_count; i++) {
 			curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]), AGP_PAGE_DESTROY_FREE);
 		}
@@ -267,8 +266,6 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
 	}
 	new->bridge = bridge;
 
-	flush_agp_mappings();
-
 	return new;
 }
 EXPORT_SYMBOL(agp_allocate_memory);

include/asm-alpha/agp.h

@@ -7,7 +7,6 @@
 
 #define map_page_into_agp(page) 
 #define unmap_page_from_agp(page) 
-#define flush_agp_mappings() 
 #define flush_agp_cache() mb()
 
 /* Convert a physical address to an address suitable for the GART. */

include/asm-ia64/agp.h

@@ -15,7 +15,6 @@
  */
 #define map_page_into_agp(page)		/* nothing */
 #define unmap_page_from_agp(page)	/* nothing */
-#define flush_agp_mappings()		/* nothing */
 #define flush_agp_cache()		mb()
 
 /* Convert a physical address to an address suitable for the GART. */

include/asm-parisc/agp.h

@@ -9,7 +9,6 @@
 
 #define map_page_into_agp(page)		/* nothing */
 #define unmap_page_from_agp(page)	/* nothing */
-#define flush_agp_mappings()		/* nothing */
 #define flush_agp_cache()		mb()
 
 /* Convert a physical address to an address suitable for the GART. */

include/asm-powerpc/agp.h

@@ -6,7 +6,6 @@
 
 #define map_page_into_agp(page)
 #define unmap_page_from_agp(page)
-#define flush_agp_mappings()
 #define flush_agp_cache() mb()
 
 /* Convert a physical address to an address suitable for the GART. */

include/asm-sparc64/agp.h

@@ -5,7 +5,6 @@
 
 #define map_page_into_agp(page) 
 #define unmap_page_from_agp(page) 
-#define flush_agp_mappings() 
 #define flush_agp_cache() mb()
 
 /* Convert a physical address to an address suitable for the GART. */

include/asm-x86/agp.h

@@ -14,7 +14,6 @@
 
 #define map_page_into_agp(page) set_pages_uc(page, 1)
 #define unmap_page_from_agp(page) set_pages_wb(page, 1)
-#define flush_agp_mappings() do { } while (0)
 
 /*
  * Could use CLFLUSH here if the cpu supports it. But then it would