For now just a brief description of what TTM is all about.
Signed-off-by: Christian König christian.koenig@amd.com --- Documentation/gpu/drm-mm.rst | 3 ++- drivers/gpu/drm/ttm/ttm_module.c | 12 ++++++++++++ 2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst index 8ca981065e1a..6b7717af4f88 100644 --- a/Documentation/gpu/drm-mm.rst +++ b/Documentation/gpu/drm-mm.rst @@ -28,7 +28,8 @@ UMA devices. The Translation Table Manager (TTM) ===================================
-TTM design background and information belongs here. +.. kernel-doc:: drivers/gpu/drm/ttm/ttm_module.c + :doc: TTM
The Graphics Execution Manager (GEM) ==================================== diff --git a/drivers/gpu/drm/ttm/ttm_module.c b/drivers/gpu/drm/ttm/ttm_module.c index 997c458f68a9..11b59cf03ec3 100644 --- a/drivers/gpu/drm/ttm/ttm_module.c +++ b/drivers/gpu/drm/ttm/ttm_module.c @@ -39,6 +39,18 @@
#include "ttm_module.h"
+/** + * DOC: TTM + * + * TTM is a memory manager for graphics devices with dedicated video memory. + * + * The basic idea is that resources are grouped together in buffer objects of + * certain size and TTM handles lifetime, movement and CPU mappings of those + * objects. + * + * TODO: Add more design background and information here. + */ + /** * ttm_prot_from_caching - Modify the page protection according to the * ttm cacing mode