gpu: nvgpu: gv100: fb hal to init and enable nvlink

Add the following hals:
(1) init_nvlink to configure nvlink(s) for sysmem in HSHUB
(2) enable_nvlink to switch from PCIe sysmem to nvlink sysmem,
    and setup atomics.

Change-Id: I73d2370aaf8e0530158a1091d9efef4a8cf2aac5
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1648044
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv100/fb_gv100.h b/drivers/gpu/nvgpu/gv100/fb_gv100.h
index b6db262a..5b99fe5e 100644
--- a/drivers/gpu/nvgpu/gv100/fb_gv100.h
+++ b/drivers/gpu/nvgpu/gv100/fb_gv100.h
@@ -29,4 +29,6 @@ struct gk20a;
 
 void gv100_fb_reset(struct gk20a *g);
 int gv100_fb_memory_unlock(struct gk20a *g);
+int gv100_fb_init_nvlink(struct gk20a *g);
+int gv100_fb_enable_nvlink(struct gk20a *g);
 #endif