gpu: nvgpu: add TSG support to runlists

- when a TSG channel is made runnable, add it to TSG's
  runnable list
- when a TSG channel is removed from runlist, remove it
  from TSG's runnable list

When we rewrite the entire runlist :
- first add all the channels which are not part of any TSG
- then find all active TSGs, add an entry in runlist for the TSG
  (with TSG id and length of TSG)
- then write entries for each channel in that TSG

Bug 1470692

Change-Id: Ic55a4d5959abc72cd20b8224eb4c31d3ff411861
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/416612
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h
index f94fce02..6e6907c1 100644
--- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.h
@@ -30,6 +30,7 @@
 
 struct fifo_runlist_info_gk20a {
         unsigned long *active_channels;
+        unsigned long *active_tsgs;
         /* Each engine has its own SW and HW runlist buffer.*/
         struct runlist_mem_desc mem[MAX_RUNLIST_BUFFERS];
         u32  cur_buffer;