Commit 14f0cf6c authored by Zhang Rui's avatar Zhang Rui Committed by Srinivas Pandruvada
Browse files

tools/power/x86/intel-speed-select: Avoid setting duplicate tdp level 



If the new TDP level requetsted is same as the current TDP level, don't
call into driver to change level.

Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
[srinivas.pandruvada@linux.intel.com: changelog edits]
Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
parent c7ff8ff3

tools/power/x86/intel-speed-select/isst-config.c

+46 −33
Original line number Diff line number Diff line
@@ -1229,16 +1229,30 @@ static void adjust_scaling_max_from_base_freq(int cpu); 
static void set_tdp_level_for_cpu(struct isst_id *id, void *arg1, void *arg2, void *arg3,

				  void *arg4)

{

	struct isst_pkg_ctdp pkg_dev;

	int ret;



	ret = isst_get_ctdp_levels(id, &pkg_dev);

	if (ret) {

		isst_display_error_info_message(1, "Get TDP level failed", 0, 0);

		isst_ctdp_display_information_end(outf);

		exit(1);

	}



	if (pkg_dev.current_level == tdp_level) {

		debug_printf("TDP level already set. Skipped\n");

		goto display_result;

	}



	ret = isst_set_tdp_level(id, tdp_level);

	if (ret) {

		isst_display_error_info_message(1, "Set TDP level failed", 0, 0);

		isst_ctdp_display_information_end(outf);

		exit(1);

	} else {

		isst_display_result(id, outf, "perf-profile", "set_tdp_level",

				    ret);

	}



display_result:

	isst_display_result(id, outf, "perf-profile", "set_tdp_level", ret);

	if (force_online_offline) {

		struct isst_pkg_ctdp_level_info ctdp_level;
@@ -1273,7 +1287,6 @@ static void set_tdp_level_for_cpu(struct isst_id *id, void *arg1, void *arg2, vo 
		}

	}

}

}



static void set_tdp_level(int arg)

{