gpu: nvgpu: cde: report use counts to debugfs

Create debugfs nodes for ctx_count, ctx_usecount and ctx_cont_top.

Change-Id: I1360853b2650d37a96c8adf76368d48d9b457909
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/602860
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

2 files changed, 9 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
index c5368e46..65d6dd4d 100644
--- a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
@@ -1625,6 +1625,12 @@ void gk20a_cde_debugfs_init(struct platform_device *dev)
 
         debugfs_create_u32("cde_parameter", S_IWUSR | S_IRUGO,
                            platform->debugfs, &g->cde_app.shader_parameter);
+        debugfs_create_u32("cde_ctx_count", S_IWUSR | S_IRUGO,
+                           platform->debugfs, &g->cde_app.ctx_count);
+        debugfs_create_u32("cde_ctx_usecount", S_IWUSR | S_IRUGO,
+                           platform->debugfs, &g->cde_app.ctx_usecount);
+        debugfs_create_u32("cde_ctx_count_top", S_IWUSR | S_IRUGO,
+                           platform->debugfs, &g->cde_app.ctx_count_top);
         debugfs_create_file("reload_cde_firmware", S_IWUSR, platform->debugfs,
                             g, &gk20a_cde_reload_fops);
 }
diff --git a/drivers/gpu/nvgpu/gk20a/cde_gk20a.h b/drivers/gpu/nvgpu/gk20a/cde_gk20a.h
index b160162c..66c18d5a 100644
--- a/drivers/gpu/nvgpu/gk20a/cde_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/cde_gk20a.h
@@ -272,9 +272,9 @@ struct gk20a_cde_app {
 
         struct list_head free_contexts;
         struct list_head used_contexts;
-        int ctx_count;
-        int ctx_usecount;
-        int ctx_count_top;
+        unsigned int ctx_count;
+        unsigned int ctx_usecount;
+        unsigned int ctx_count_top;
 
         u32 firmware_version;