gpu: nvgpu: support for dumping vpr/wpr info

Added support for dumping vpr/wpr info for gm20b.
This dump info called when ever gk20a_mm_fb_flush
is timed-out.

Bug 200082817

Change-Id: I21b0372d0e3f976a189c9c428c015165b715bf88
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/711439
(cherry picked from commit b69897d71c8f6119b49ceb8d3273cdb354178cc5)
Reviewed-on: http://git-master/r/712675
GVS: Gerrit_Virtual_Submit
Reviewed-by: Yu-Huan Hsu <yhsu@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
index 67680c4c..b53d53a3 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
@@ -2805,6 +2805,8 @@ int gk20a_mm_fb_flush(struct gk20a *g)
         if (tegra_platform_is_silicon() && retry < 0) {
                 gk20a_warn(dev_from_gk20a(g),
                         "fb_flush too many retries");
+                if (g->ops.fb.dump_vpr_wpr_info)
+                        g->ops.fb.dump_vpr_wpr_info(g);
                 ret = -EBUSY;
         }