gpu: nvgpu: Use HAL for waiting for GR quiet

Create a HAL for waiting for GR to become quiet. Use it forall cases
where we require GR to be quiet, but where it does not need to be
idle.

Bug 1640378

Change-Id: Ic0222d595a2d049e0fa8864b069ab94a97fac143
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/745640
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
index 1fa1eb24..8351b554 100644
--- a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
@@ -1117,4 +1117,5 @@ void gm20b_init_gr(struct gpu_ops *gops)
         gops->gr.get_rop_l2_en_mask = gr_gm20b_rop_l2_en_mask;
         gops->gr.get_max_fbps_count = gr_gm20b_get_max_fbps_count;
         gops->gr.init_sm_dsm_reg_info = gr_gm20b_init_sm_dsm_reg_info;
+        gops->gr.wait_empty = gr_gk20a_wait_idle;
 }