[Intel-gfx] [PATCH 06/17] agp: kill agp_(map|unmap)_page

[Daniel Vetter]

Only used to remap the scratch page. Now that intel-gtt does this
itself, kill the support code.

Cc: Dave Airlie <airlied at linux.ie>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/char/agp/agp.h     |    2 --
 drivers/char/agp/backend.c |   22 +---------------------
 2 files changed, 1 insertions(+), 23 deletions(-)

diff --git a/drivers/char/agp/agp.h b/drivers/char/agp/agp.h
index 1204909..04ad0bb 100644
--- a/drivers/char/agp/agp.h
+++ b/drivers/char/agp/agp.h
@@ -122,8 +122,6 @@ struct agp_bridge_driver {
 	int (*agp_type_to_mask_type) (struct agp_bridge_data *, int);
 	void (*chipset_flush)(struct agp_bridge_data *);
 
-	int (*agp_map_page)(struct page *page, dma_addr_t *ret);
-	void (*agp_unmap_page)(struct page *page, dma_addr_t dma);
 	int (*agp_map_memory)(struct agp_memory *mem);
 	void (*agp_unmap_memory)(struct agp_memory *mem);
 };
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index ee4f855..f27d0d0 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -151,17 +151,7 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
 		}
 
 		bridge->scratch_page_page = page;
-		if (bridge->driver->agp_map_page) {
-			if (bridge->driver->agp_map_page(page,
-							 &bridge->scratch_page_dma)) {
-				dev_err(&bridge->dev->dev,
-					"unable to dma-map scratch page\n");
-				rc = -ENOMEM;
-				goto err_out_nounmap;
-			}
-		} else {
-			bridge->scratch_page_dma = page_to_phys(page);
-		}
+		bridge->scratch_page_dma = page_to_phys(page);
 
 		bridge->scratch_page = bridge->driver->mask_memory(bridge,
 						   bridge->scratch_page_dma, 0);
@@ -204,12 +194,6 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
 	return 0;
 
 err_out:
-	if (bridge->driver->needs_scratch_page &&
-	    bridge->driver->agp_unmap_page) {
-		bridge->driver->agp_unmap_page(bridge->scratch_page_page,
-					       bridge->scratch_page_dma);
-	}
-err_out_nounmap:
 	if (bridge->driver->needs_scratch_page) {
 		void *va = page_address(bridge->scratch_page_page);
 
@@ -240,10 +224,6 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
 	    bridge->driver->needs_scratch_page) {
 		void *va = page_address(bridge->scratch_page_page);
 
-		if (bridge->driver->agp_unmap_page)
-			bridge->driver->agp_unmap_page(bridge->scratch_page_page,
-						       bridge->scratch_page_dma);
-
 		bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_UNMAP);
 		bridge->driver->agp_destroy_page(va, AGP_PAGE_DESTROY_FREE);
 	}
-- 
1.7.1