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This patch primary separates runlist modification from runlist submits. Instead of submitting the runlist(domain) immediately after modification, a worker thread interface is now being used to synchronously schedule runlist submits. If the runlist being scheduled is currently active, the submit happens instantly, otherwise, it will happen in the next iteration when the nvs thread will schedule the domain. This external interface uses a condition variable to wait for the completion of the synchronous submits. A pending_update variable is used to synchronize domain memory swaps just before being submitted. To facilitate faster scheduling via the NVS thread, nvgpu_dom itself contains an array of rl_domain pointers. This can then be used to select the appropriate rl_domain directly for scheduling as against the earlier approach of maintaining nvs domains and rl domains in sync everytime. Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Change-Id: I1725c7cf56407cca2e3d2589833d1c0b66a7ad7b Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2739795 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Ramesh Mylavarapu <rmylavarapu@nvidia.com> Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com> GVS: Gerrit_Virtual_Submit