drm: Inline AGP wrappers into their only callers

The AGP wrapper functions serve no purpose. They used to handle
builds that have CONFIG_AGP unset. But their callers are all in
drm_agpsupport.c, which only gets build with CONFIG_AGP.

v2:
	* clarify CONFIG_AGP in commit description (Daniel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210112081035.6882-2-tzimmermann@suse.de

drivers/gpu/drm/drm_agpsupport.c

@@ -285,7 +285,7 @@ int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request)
 	entry = drm_agp_lookup_entry(dev, request->handle);
 	if (!entry || !entry->bound)
 		return -EINVAL;
-	ret = drm_unbind_agp(entry->memory);
+	ret = agp_unbind_memory(entry->memory);
 	if (ret == 0)
 		entry->bound = 0;
 	return ret;
@@ -326,7 +326,7 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request)
 	if (!entry || entry->bound)
 		return -EINVAL;
 	page = DIV_ROUND_UP(request->offset, PAGE_SIZE);
-	retcode = drm_bind_agp(entry->memory, page);
+	retcode = agp_bind_memory(entry->memory, page);
 	if (retcode)
 		return retcode;
 	entry->bound = dev->agp->base + (page << PAGE_SHIFT);
@@ -369,11 +369,11 @@ int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request)
 	if (!entry)
 		return -EINVAL;
 	if (entry->bound)
-		drm_unbind_agp(entry->memory);
+		agp_unbind_memory(entry->memory);
 
 	list_del(&entry->head);
 
-	drm_free_agp(entry->memory, entry->pages);
+	agp_free_memory(entry->memory);
 	kfree(entry);
 	return 0;
 }
@@ -453,8 +453,8 @@ void drm_legacy_agp_clear(struct drm_device *dev)
 
 	list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
 		if (entry->bound)
-			drm_unbind_agp(entry->memory);
-		drm_free_agp(entry->memory, entry->pages);
+			agp_unbind_memory(entry->memory);
+		agp_free_memory(entry->memory);
 		kfree(entry);
 	}
 	INIT_LIST_HEAD(&dev->agp->memory);

drivers/gpu/drm/drm_memory.c

@@ -100,24 +100,6 @@ static void *agp_remap(unsigned long offset, unsigned long size,
 	return addr;
 }
 
-/** Wrapper around agp_free_memory() */
-void drm_free_agp(struct agp_memory *handle, int pages)
-{
-	agp_free_memory(handle);
-}
-
-/** Wrapper around agp_bind_memory() */
-int drm_bind_agp(struct agp_memory *handle, unsigned int start)
-{
-	return agp_bind_memory(handle, start);
-}
-
-/** Wrapper around agp_unbind_memory() */
-int drm_unbind_agp(struct agp_memory *handle)
-{
-	return agp_unbind_memory(handle);
-}
-
 #else /*  CONFIG_AGP  */
 static inline void *agp_remap(unsigned long offset, unsigned long size,
 			      struct drm_device *dev)

include/drm/drm_agpsupport.h

@@ -28,10 +28,6 @@ struct drm_agp_head {
 
 #if IS_ENABLED(CONFIG_AGP)
 
-void drm_free_agp(struct agp_memory * handle, int pages);
-int drm_bind_agp(struct agp_memory * handle, unsigned int start);
-int drm_unbind_agp(struct agp_memory * handle);
-
 struct drm_agp_head *drm_agp_init(struct drm_device *dev);
 void drm_legacy_agp_clear(struct drm_device *dev);
 int drm_agp_acquire(struct drm_device *dev);
@@ -61,20 +57,6 @@ int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
 
 #else /* CONFIG_AGP */
 
-static inline void drm_free_agp(struct agp_memory * handle, int pages)
-{
-}
-
-static inline int drm_bind_agp(struct agp_memory * handle, unsigned int start)
-{
-	return -ENODEV;
-}
-
-static inline int drm_unbind_agp(struct agp_memory * handle)
-{
-	return -ENODEV;
-}
-
 static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev)
 {
 	return NULL;