gpu: nvgpu: Enable IO coherency on GV100

This reverts commit 848af2ce6de6140323a6ffe3075bf8021e119434.

This is a revert of a revert, etc, etc. It re-enables IO coherence again.

JIRA EVLR-2333

Change-Id: Ibf97dce2f892e48a1200a06cd38a1c5d9603be04
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1669722
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
index 409661fc..4fda0d2e 100644
--- a/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fecs_trace_gk20a.c
@@ -653,6 +653,7 @@ int gk20a_fecs_trace_bind_channel(struct gk20a *g,
                 return -ENOMEM;
         aperture = nvgpu_aperture_mask(g, &trace->trace_buf,
                         ctxsw_prog_main_image_context_timestamp_buffer_ptr_hi_target_sys_mem_noncoherent_f(),
+                        ctxsw_prog_main_image_context_timestamp_buffer_ptr_hi_target_sys_mem_coherent_f(),
                         ctxsw_prog_main_image_context_timestamp_buffer_ptr_hi_target_vid_mem_f());
 
         if (nvgpu_mem_begin(g, mem))