This patch adds support for SMMU performance monitoring in the driver. Bug 4287384 Signed-off-by: Vishal Aslot <vaslot@nvidia.com> Change-Id: I59e33a5ac6e8d860f4454fdf46476847aef42106 Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2986919 Reviewed-by: Vedashree Vidwans <vvidwans@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>