gpu: nvgpu: add fuse overrides for tpc disabling

- add fuse_override in gops. Implement it starting from gm20b.
- set cwd fs register, so cuda won't use disabled TPCs

Bug 1757262
Bug 200169697

Change-Id: If7bac58bd3a6bcf2925197ea5b7c2d10a77e0933
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
(cherry picked from commit 66cde7724815e9e5e85ab9b07fc985a78530222f)
Reviewed-on: http://git-master/r/1132177
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Adeel Raza <araza@nvidia.com>
Tested-by: Adeel Raza <araza@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 09198fa5..f228cce4 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -259,6 +259,7 @@ struct gpu_ops {
                                 u32 compute_preempt_mode);
                 int (*get_preemption_mode_flags)(struct gk20a *g,
                        struct nvgpu_preemption_modes_rec *preemption_modes_rec);
+                int (*fuse_override)(struct gk20a *g);
         } gr;
         const char *name;
         struct {