gpu: nvgpu: rework TSG's channel list

Modify TSG's channel list as "ch_list" for all channels
instead of "ch_runnable_list" for only runnable list
We can traverse this list and check runnable status of
channel in active_channels to get runnable channels

Remove below APIs as they are no longer required :
gk20a_bind_runnable_channel_to_tsg()
gk20a_unbind_channel_from_tsg()

While closing the channel, call gk20a_tsg_unbind_channel()
to unbind the channel from TSG

bug 1470692

Change-Id: I0178fa74b3e8bb4e5c0b3e3b2b2f031491761ba7
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/449227
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index 9f8876c3..5bb62dd3 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -680,6 +680,9 @@ void gk20a_free_channel(struct channel_gk20a *ch, bool finish)
                 gk20a_vm_put(ch_vm);
 
 unbind:
+        if (gk20a_is_channel_marked_as_tsg(ch))
+                gk20a_tsg_unbind_channel(ch);
+
         channel_gk20a_unbind(ch);
         channel_gk20a_free_inst(g, ch);