gpu: nvgpu: debugfs for ch_wdt timeout

export debugfs /d/gpu.0/ch_wdt_timeout_ms to modify
all channels' watchdog timeout

this is needed for testing purpose only

Bug 200133289

Change-Id: I8776b567d5d5a1c304334835b0bcab7b242cf0ab
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/810957
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
index bda0dab0..1cac683d 100644
--- a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
@@ -418,6 +418,9 @@ void gk20a_debug_init(struct platform_device *pdev)
         debugfs_create_u32("trace_cmdbuf", S_IRUGO|S_IWUSR, platform->debugfs,
                         &gk20a_debug_trace_cmdbuf);
 
+        debugfs_create_u32("ch_wdt_timeout_ms", S_IRUGO|S_IWUSR,
+                        platform->debugfs, &platform->ch_wdt_timeout_ms);
+
 #if defined(GK20A_DEBUG)
         debugfs_create_u32("dbg_mask", S_IRUGO|S_IWUSR, platform->debugfs,
                         &gk20a_dbg_mask);