gpu: nvgpu: Dynamic betacb size

Allow querying and setting default betacb size via debugfs. For global buffers
the value takes effect upon first boot of GPU, and has no effect after that.

Bug 1628352

Change-Id: Ib63f4299249c41eab1b36cc501b525cc54211195
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/733328

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index c310d73c..ce8d1d62 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -472,6 +472,7 @@ struct gk20a {
         struct dentry *debugfs_gr_idle_timeout_default;
         struct dentry *debugfs_bypass_smmu;
         struct dentry *debugfs_disable_bigpage;
+        struct dentry *debugfs_gr_default_attrib_cb_size;
 #endif
         struct gk20a_ctxsw_ucode_info ctxsw_ucode_info;