commit 8a8ed67227c0082c9873dc7feb3a53ae7a2674f3
Author: Ronald Uitermark <ronald645@gmail.com>
Date:   Sat Aug 25 20:36:28 2012 +0200

    Recent rewrite broke building the kernel without AGP make this conditional so we can proceed with testing.
    
    For reference, the error was:
    
    CC drivers/gpu/drm/nouveau/nouveau_bo.o
    drivers/gpu/drm/nouveau/nouveau_bo.c: In function 'nouveau_ttm_tt_create':
    drivers/gpu/drm/nouveau/nouveau_bo.c:463:3: error: implicit declaration of function 'ttm_agp_tt_create'
    drivers/gpu/drm/nouveau/nouveau_bo.c:463:3: attention: return makes pointer from integer without a cast

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 259e5f1..56526c4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -459,10 +459,12 @@ nouveau_ttm_tt_create(struct ttm_bo_device *bdev, unsigned long size,
 	struct nouveau_drm *drm = nouveau_bdev(bdev);
 	struct drm_device *dev = drm->dev;
 
+#if __OS_HAS_AGP
 	if (drm->agp.stat == ENABLED) {
 		return ttm_agp_tt_create(bdev, dev->agp->bridge, size,
 					 page_flags, dummy_read);
 	}
+#endif
 
 	return nouveau_sgdma_create_ttm(bdev, size, page_flags, dummy_read);
 }