gpu: nvgpu: add compbit backing size to gr_gk20a

Add compbit_backing_size variable to struct gr_gk20a to hold
compbit backing size
And copy this value in respective init_comptags() HAL

Bug 2180284
Jira NVGPUT-12

Change-Id: I3c1bea3a6b7ed39a1e901357e6e062dbf45b747b
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1776028
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
index 44b6de8d..4f83bba3 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
@@ -333,6 +333,7 @@ struct gr_gk20a {
         u32 num_fbps;
 
         u32 max_comptag_lines;
+        u32 compbit_backing_size;
         u32 comptags_per_cacheline;
         u32 slices_per_ltc;
         u32 cacheline_size;