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The device_info table is an array of registers which contain engine specific data for engines like CE, graphics, nvdec, ioctrl etc. These registers contain data like intr_enum, reset_enum, pri_base and so on. The Top unit would include HAL to parse this table and get data for a particular engine. Some engines like CE have multiple entries in the device_info table corresponding to each instance of the engine. Prior to Pascal, each instance of an engine was denoted by different engine type. For example in GM20B, there are engine types like COPY_ENGINE0, COPY_ENGINE1 and so on. In Pascal and chips beyond, a new field called "inst_id" is added and the engine_type is kept the same. For example in GP10B, all copy engine entries have same engine type i.e ENGINE_LCE, but different inst_ids. So for Pascal and chips beyond, add HAL to get number of entries corresponding to an engine type.The "get_device_info" HAL will parse a specific instance of the engine using inst_id argument JIRA NVGPU-1053 Change-Id: Ie3058b1c1bfdd87bfa47e5f037d049d9d50cfc0b Signed-off-by: Tejal Kudav <tkudav@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1969399 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com> Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>