Commit 4fa825bf authored by Eric Anholt's avatar Eric Anholt
Browse files

drm/v3d: Add some better documentation of the in_sync arguments. 



Since this is UAPI, it's good to document what exactly the guarantees
we're providing are.

Signed-off-by: default avatarEric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180928232126.4332-3-eric@anholt.net


Reviewed-by: default avatarBoris Brezillon <boris.brezillon@bootlin.com>
parent 6915c9a5

include/uapi/drm/v3d_drm.h

+10 −0
Original line number Diff line number Diff line
@@ -58,6 +58,11 @@ struct drm_v3d_submit_cl { 
	 * coordinate shader to determine where primitives land on the screen,

	 * then writes out the state updates and draw calls necessary per tile

	 * to the tile allocation BO.

	 *

	 * This BCL will block on any previous BCL submitted on the

	 * same FD, but not on any RCL or BCLs submitted by other

	 * clients -- that is left up to the submitter to control

	 * using in_sync_bcl if necessary.

	 */

	__u32 bcl_start;
@@ -69,6 +74,11 @@ struct drm_v3d_submit_cl { 
	 * This is the second set of commands executed, which will either

	 * execute the tiles that have been set up by the BCL, or a fixed set

	 * of tiles (in the case of RCL-only blits).

	 *

	 * This RCL will block on this submit's BCL, and any previous

	 * RCL submitted on the same FD, but not on any RCL or BCLs

	 * submitted by other clients -- that is left up to the

	 * submitter to control using in_sync_rcl if necessary.

	 */

	__u32 rcl_start;