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This change is the first of a series of changes to support the usage of pre-allocated job tracking resources in the submit path. With this change, we still maintain a dynamically-allocated joblist, but make the necessary changes in the channel_sync & fence framework to use in-place allocations. Specifically, we: 1) Update channel sync framework routines to take in pre-allocated priv_cmd_entry(s) & gk20a_fence(s) rather than dynamically allocating themselves 2) Move allocation of priv_cmd_entry(s) & gk20a_fence(s) to gk20a_submit_prepare_syncs 3) Modify fence framework to have seperate allocation and init APIs. We expose allocation as a seperate API, so the client can allocate the object before passing it into the channel sync framework. 4) Fix clean_up logic in channel sync framework Bug 1795076 Change-Id: I96db457683cd207fd029c31c45f548f98055e844 Signed-off-by: Sachit Kadle <skadle@nvidia.com> Reviewed-on: http://git-master/r/1206725 (cherry picked from commit 9d196fd10db6c2f934c2a53b1fc0500eb4626624) Reviewed-on: http://git-master/r/1223933 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>