[PATCH 7/8] drm/ttm: merge ttm_backend and ttm_tt

From: Jerome Glisse ttm_backend will exist only and only with a ttm_tt, and ttm_tt will be of interesting use only when bind to a backend. Thus to avoid code & data duplication btw the two merge them. Signed-off-by: Jerome Glisse --- drivers/gpu/drm/nouveau/nouveau_bo.c| 14 ++- drivers/

[PATCH 7/8] drm/ttm: merge ttm_backend and ttm_tt

From: Jerome Glisse ttm_backend will exist only and only with a ttm_tt, and ttm_tt will be of interesting use only when bind to a backend. Thus to avoid code & data duplication btw the two merge them. Signed-off-by: Jerome Glisse --- drivers/gpu/drm/nouveau/nouveau_bo.c| 14 ++- drivers/