gpu: nvgpu: add sched control API

Added a dedicated device node to allow an
app manager to control TSG scheduling parameters:
- Get list of TSGs
- Get list of recent TSGs
- Get list of TSGs per pid
- Get TSG current scheduling parameters
- Set TSG timeslice
- Set TSG runlist interleave

Jira VFND-1586

Change-Id: I014c9d1534bce0eaea6c25ad114cf0cff317af79
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1160384
(cherry picked from commit 75ca739517cc7f7f76714b5f6a1a57c39b8cb38e)
Reviewed-on: http://git-master/r/1167021
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
index 57414690..2819dd1c 100644
--- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
@@ -56,6 +56,7 @@ struct tsg_gk20a {
         struct mutex event_id_list_lock;
 
         u32 runlist_id;
+        pid_t tgid;
 };
 
 int gk20a_enable_tsg(struct tsg_gk20a *tsg);
@@ -66,5 +67,8 @@ int gk20a_tsg_unbind_channel(struct channel_gk20a *ch);
 
 void gk20a_tsg_event_id_post_event(struct tsg_gk20a *tsg,
                                        int event_id);
+int gk20a_tsg_set_runlist_interleave(struct tsg_gk20a *tsg, u32 level);
+int gk20a_tsg_set_timeslice(struct tsg_gk20a *tsg, u32 timeslice);
+
 
 #endif /* __TSG_GK20A_H_ */