gpu: nvgpu: set aggressive_sync_destroy at runtime

We currently set "aggressive_destroy" flag to destroy
sync object statically and for each sync object

Move this flag to per-platform structure so that it
can be set per-platform for all the sync objects

Also, set the default value of this flag as "false"
and set it to "true" once we have more than 64
channels in use

Bug 200141116

Change-Id: I1bc271df4f468a4087a06a27c7289ee0ec3ef29c
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/822041
(cherry picked from commit 98741e7e88066648f4f14490c76b61dbff745103)
Reviewed-on: http://git-master/r/835800
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index b7a28ea5..84b3fcaf 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -47,6 +47,9 @@ struct gk20a_platform {
         /* Should be populated at probe. */
         bool has_syncpoints;
 
+        /* flag to set sync destroy aggressiveness */
+        bool aggressive_sync_destroy;
+
         /* Should be populated by probe. */
         struct dentry *debugfs;
         struct dentry *debugfs_alias;