Revert "gpu: nvgpu: Get coherency on gv100 + NVLINK working"

Also revert other changes related to IO coherence. This may be the
culprit in a recent dev-kernel lockdown.

Bug 2070609

Change-Id: Ida178aef161fadbc6db9512521ea51c702c1564b
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665914
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Srikar Srimath Tirumala <srikars@nvidia.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/pramin_gk20a.c b/drivers/gpu/nvgpu/gk20a/pramin_gk20a.c
index 711aeb0d..05d0473e 100644
--- a/drivers/gpu/nvgpu/gk20a/pramin_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/pramin_gk20a.c
@@ -41,7 +41,6 @@ u32 gk20a_pramin_enter(struct gk20a *g, struct nvgpu_mem *mem,
         u32 lo = (u32)(addr & 0xfffff);
         u32 win = nvgpu_aperture_mask(g, mem,
                         bus_bar0_window_target_sys_mem_noncoherent_f(),
-                        bus_bar0_window_target_sys_mem_coherent_f(),
                         bus_bar0_window_target_vid_mem_f()) |
                 bus_bar0_window_base_f(hi);