From 18eee7effef0689a8b9dbd7c61703c52cbdb490e Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Thu, 4 Sep 2014 19:09:26 +0530 Subject: gpu: nvgpu: add refcounting for TSG Add refcounting for TSGs and manage the refcounts as below : - initialize ref when TSG is opened - get ref when channel is bound to TSG - drop the ref when channel is unbound (i.e. during channel close) - drop the ref when TSG is closed - when refcount drops to zero, we free the TSG This refcounting makes it possible to close channels or TSG in any order Bug 1470692 Change-Id: Ia4b39164a4582c8169da62a91b9131094c67f5f8 Signed-off-by: Deepak Nibade Reviewed-on: http://git-master/r/495667 (cherry picked from commit be1e198a663d2102e9674978f3d2cca0f2327a6b) Reviewed-on: http://git-master/r/495955 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Terje Bergstrom Tested-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/tsg_gk20a.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a/tsg_gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c index 67fa6508..c84e8d0b 100644 --- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.c @@ -27,6 +27,8 @@ static void gk20a_tsg_release(struct kref *ref); +static void gk20a_tsg_release(struct kref *ref); + bool gk20a_is_channel_marked_as_tsg(struct channel_gk20a *ch) { return !(ch->tsgid == NVGPU_INVALID_TSG_ID); -- cgit v1.2.2