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[Why] Core needs to track pstate schedule admissibility for different global change scenarios (fclk, temp read, PPT) and requires a reusable way to compute per-stream frame time from timing parameters. [How] Extend dml2_core_internal_mode_support_info with: fclk_pstate_schedule_admissible temp_read_pstate_schedule_admissible ppt_pstate_schedule_admissible Add dummy_double_array[3][DML2_MAX_PLANES] to dml2_core_calcs_mode_support_locals. Introduce dml2_core_utils_get_frame_time_us() in dml2_core_utils.c and export it in dml2_core_utils.h to compute frame time in microseconds from stream timing (vline time * (vactive + vblank)). Reviewed-by: Dillon Varone <dillon.varone@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>