gpu: nvgpu: Check bar1 bind

Add two fb flushes after bar1 bind. This should hang the thread instead
of whole system in case there is a BAR1 hang.

Change-Id: I2385a243711219297b889daa30c9fc81106e5825
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/390183

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 23d15c23..cdbab138 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -287,7 +287,7 @@ int gk20a_init_mm_setup_sw(struct gk20a *g);
 int gk20a_init_bar1_vm(struct mm_gk20a *mm);
 int gk20a_init_pmu_vm(struct mm_gk20a *mm);
 
-void gk20a_mm_fb_flush(struct gk20a *g);
+int gk20a_mm_fb_flush(struct gk20a *g);
 void gk20a_mm_l2_flush(struct gk20a *g, bool invalidate);
 void gk20a_mm_l2_invalidate(struct gk20a *g);