gpu: nvgpu: gp10b: Use betacb size from debugfs

If betacb size has been given via debugfs, use that instead of the
calculated number.

Bug 1628352

Change-Id: I8c68c27a2bfdd7f013776734ef846377a89b0033
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/733332

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/gr_gp10b.c b/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
index 4f7a037b..96070df7 100644
--- a/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
@@ -322,8 +322,9 @@ static void gr_gp10b_cb_size_default(struct gk20a *g)
 {
         struct gr_gk20a *gr = &g->gr;
 
-        gr->attrib_cb_default_size =
-                gr_gpc0_ppc0_cbm_beta_cb_size_v_default_v();
+        if (!gr->attrib_cb_default_size)
+                gr->attrib_cb_default_size =
+                        gr_gpc0_ppc0_cbm_beta_cb_size_v_default_v();
         gr->alpha_cb_default_size =
                 gr_gpc0_ppc0_cbm_alpha_cb_size_v_default_v();
 }