gpu: nvgpu: vgpu: add tsg initialization

It fixed kernel dump when run CUDA L0 test.

Bug 1594604

Change-Id: Ic986b34629052e915f4ccc5a5b6df198afaf2ff9
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: http://git-master/r/831391
(cherry picked from commit 43d4ba4d6ffc6043e8425dc40967975afe3a95f1)
Reviewed-on: http://git-master/r/832416
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vladislav Buzov <vbuzov@nvidia.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
index a2ecd864..664f8c5b 100644
--- a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
@@ -271,10 +271,12 @@ static int vgpu_init_fifo_setup_sw(struct gk20a *g)
 
         f->channel = kzalloc(f->num_channels * sizeof(*f->channel),
                                 GFP_KERNEL);
+        f->tsg = kzalloc(f->num_channels * sizeof(*f->tsg),
+                                GFP_KERNEL);
         f->engine_info = kzalloc(f->max_engines * sizeof(*f->engine_info),
                                 GFP_KERNEL);
 
-        if (!(f->channel && f->engine_info)) {
+        if (!(f->channel && f->tsg && f->engine_info)) {
                 err = -ENOMEM;
                 goto clean_up;
         }
@@ -296,7 +298,9 @@ static int vgpu_init_fifo_setup_sw(struct gk20a *g)
                         f->userd.gpu_va + chid * f->userd_entry_size;
 
                 gk20a_init_channel_support(g, chid);
+                gk20a_init_tsg_support(g, chid);
         }
+        mutex_init(&f->tsg_inuse_mutex);
 
         f->deferred_reset_pending = false;
         mutex_init(&f->deferred_reset_mutex);
@@ -315,6 +319,8 @@ clean_up:
 
         kfree(f->channel);
         f->channel = NULL;
+        kfree(f->tsg);
+        f->tsg = NULL;
         kfree(f->engine_info);
         f->engine_info = NULL;