diff --git a/tools/power/x86/intel-speed-select/isst-core-mbox.c b/tools/power/x86/intel-speed-select/isst-core-mbox.c
index 8d62bafcaca5..2ea7ef4ef446 100644
--- a/tools/power/x86/intel-speed-select/isst-core-mbox.c
+++ b/tools/power/x86/intel-speed-select/isst-core-mbox.c
@@ -338,6 +338,19 @@ static int mbox_get_get_trl(struct isst_id *id, int level, int avx_level, int *t
 	return 0;
 }
 
+static int mbox_get_get_trls(struct isst_id *id, int level, struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	int trl_max_levels = isst_get_trl_max_levels();
+	int i, ret;
+
+	for (i = 0; i < trl_max_levels; i++) {
+		ret = mbox_get_get_trl(id, level, i, ctdp_level->trl_ratios[i]);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
 static int mbox_get_trl_bucket_info(struct isst_id *id, int level, unsigned long long *buckets_info)
 {
 	int ret;
@@ -598,6 +611,7 @@ static struct isst_platform_ops mbox_ops = {
 	.get_pwr_info = mbox_get_pwr_info,
 	.get_coremask_info = mbox_get_coremask_info,
 	.get_get_trl = mbox_get_get_trl,
+	.get_get_trls = mbox_get_get_trls,
 	.get_trl_bucket_info = mbox_get_trl_bucket_info,
 	.set_tdp_level = mbox_set_tdp_level,
 	.get_pbf_info = mbox_get_pbf_info,
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
index 27049e283eb3..f4e3a91dc4c2 100644
--- a/tools/power/x86/intel-speed-select/isst-core.c
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -346,6 +346,12 @@ int isst_get_get_trl(struct isst_id *id, int level, int avx_level, int *trl)
 	return isst_ops->get_get_trl(id, level, avx_level, trl);
 }
 
+int isst_get_get_trls(struct isst_id *id, int level, struct isst_pkg_ctdp_level_info *ctdp_level)
+{
+	CHECK_CB(get_get_trls);
+	return isst_ops->get_get_trls(id, level, ctdp_level);
+}
+
 int isst_get_trl_bucket_info(struct isst_id *id, int level, unsigned long long *buckets_info)
 {
 	CHECK_CB(get_trl_bucket_info);
@@ -550,8 +556,6 @@ int isst_get_process_ctdp(struct isst_id *id, int tdp_level, struct isst_pkg_ctd
 
 	for (i = 0; i <= pkg_dev->levels; ++i) {
 		struct isst_pkg_ctdp_level_info *ctdp_level;
-		int trl_max_levels = isst_get_trl_max_levels();
-		int j;
 
 		if (tdp_level != 0xff && i != tdp_level)
 			continue;
@@ -618,12 +622,9 @@ int isst_get_process_ctdp(struct isst_id *id, int tdp_level, struct isst_pkg_ctd
 		if (ret)
 			return ret;
 
-		for (j = 0; j < trl_max_levels; j++) {
-			ret = isst_get_get_trl(id, i, j,
-				       ctdp_level->trl_ratios[j]);
-			if (ret)
-				return ret;
-		}
+		ret = isst_get_get_trls(id, i, ctdp_level);
+		if (ret)
+			return ret;
 	}
 
 	if (!valid)
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index e113a2bef404..b17fcf737560 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -192,6 +192,7 @@ struct isst_platform_ops {
 	int (*get_pwr_info)(struct isst_id *id, int config_index, struct isst_pkg_ctdp_level_info *ctdp_level);
 	int (*get_coremask_info)(struct isst_id *id, int config_index, struct isst_pkg_ctdp_level_info *ctdp_level);
 	int (*get_get_trl)(struct isst_id *id, int level, int avx_level, int *trl);
+	int (*get_get_trls)(struct isst_id *id, int level, struct isst_pkg_ctdp_level_info *ctdp_level);
 	int (*get_trl_bucket_info)(struct isst_id *id, int level, unsigned long long *buckets_info);
 	int (*set_tdp_level)(struct isst_id *id, int tdp_level);
 	int (*get_pbf_info)(struct isst_id *id, int level, struct isst_pbf_info *pbf_info);