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, 6 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
index 69e2b409..15e645f2 100644
--- a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
@@ -596,6 +596,7 @@ static int gk20a_fecs_trace_bind_channel(struct gk20a *g,
         struct gk20a_fecs_trace *trace = g->fecs_trace;
         struct mem_desc *mem = &ch_ctx->gr_ctx->mem;
         u32 context_ptr = gk20a_fecs_trace_fecs_context_ptr(ch);
+        pid_t pid;
 
         gk20a_dbg(gpu_dbg_fn|gpu_dbg_ctxsw,
                         "hw_chid=%d context_ptr=%x inst_block=%llx",
@@ -630,7 +631,11 @@ static int gk20a_fecs_trace_bind_channel(struct gk20a *g,
                         GK20A_FECS_TRACE_NUM_RECORDS));
 
         gk20a_mem_end(g, mem);
-        gk20a_fecs_trace_hash_add(g, context_ptr, ch->pid);
+        if (gk20a_is_channel_marked_as_tsg(ch))
+                pid = tsg_gk20a_from_ch(ch)->tgid;
+        else
+                pid = ch->pid;
+        gk20a_fecs_trace_hash_add(g, context_ptr, pid);
 
         return 0;
 }