gpu: nvgpu: Fix gk20a_busy() in debug dump

When debug dump is called from an interrupt thread, we do not want
to call gk20a_busy() because it causes race in case rail gating is
being engaged at the same time. It has to be called from all debugfs
paths.

Bug 200198908
Bug 1770522

Change-Id: I7eda7d029b0a59cce0320ecc1b750dc2f4d7ccf0
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1163440
GVS: Gerrit_Virtual_Submit
Tested-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/debug_gk20a.h b/drivers/gpu/nvgpu/gk20a/debug_gk20a.h
index 1044f881..e83076b8 100644
--- a/drivers/gpu/nvgpu/gk20a/debug_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/debug_gk20a.h
@@ -37,5 +37,7 @@ void gk20a_debug_show_dump(struct gk20a *g, struct gk20a_debug_output *o);
 int gk20a_gr_debug_dump(struct device *pdev);
 void gk20a_debug_init(struct device *dev);
 void gk20a_init_debug_ops(struct gpu_ops *gops);
+void gk20a_debug_dump_device(void *dev);
+
 
 #endif