gpu: nvgpu: make deferred clean-up conditional

This change makes the invocation of the deferred job clean-up
mechanism conditional. For submissions that require job tracking,
deferred clean-up is only required if any of the following
conditions are met:

1) Channel's deterministic flag is not set
2) Rail-gating is enabled
3) Channel WDT is enabled
4) Buffer refcounting is enabled
5) Dependency on Sync Framework

In case deferred clean-up is not needed, we clean-up
a single job tracking resource in the submit path. For
deterministic channels, we do not allow deferred clean-up to
occur and fail any submits that require it.

Bug 1795076

Change-Id: I4021dffe8a71aa58f12db6b58518d3f4021f3313
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1220920
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
(cherry picked from commit b09f7589d5ad3c496e7350f1ed583a4fe2db574a)
Reviewed-on: http://git-master/r/1223941
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.h b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.h
index c3a92ad2..5e75dd9b 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.h
@@ -57,7 +57,8 @@ struct gk20a_channel_sync {
         int (*incr)(struct gk20a_channel_sync *s,
                     struct priv_cmd_entry *entry,
                     struct gk20a_fence *fence,
-                    bool need_sync_fence);
+                    bool need_sync_fence,
+                    bool register_irq);
 
         /* Increment syncpoint/semaphore, preceded by a wfi.
          * Returns
@@ -80,7 +81,8 @@ struct gk20a_channel_sync {
                          struct priv_cmd_entry *entry,
                          struct gk20a_fence *fence,
                          bool wfi,
-                         bool need_sync_fence);
+                         bool need_sync_fence,
+                         bool register_irq);
 
         /* Reset the channel syncpoint/semaphore. */
         void (*set_min_eq_max)(struct gk20a_channel_sync *s);
@@ -99,5 +101,6 @@ struct gk20a_channel_sync {
 
 void gk20a_channel_sync_destroy(struct gk20a_channel_sync *sync);
 struct gk20a_channel_sync *gk20a_channel_sync_create(struct channel_gk20a *c);
+bool gk20a_channel_sync_needs_sync_framework(struct channel_gk20a *c);
 
 #endif