linux-kernel - [PATCH] tools/power/x86/intel-speed-select: Display error on turbo mode disabled

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Message-Id: <20220510023421.3930540-1-srinivas.pandruvada@linux.intel.com>
Date:   Mon,  9 May 2022 19:34:21 -0700
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     hdegoede@...hat.com, markgross@...nel.org
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH] tools/power/x86/intel-speed-select: Display error on turbo mode disabled

For Intel SST turbo-freq feature to be enabled, the turbo mode on the
platform must be enabled also. If turbo mode is disabled, display error
while enabling turbo-freq feature.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
Since this is a trivial patch, I am not sending a PULL request.

 tools/power/x86/intel-speed-select/isst-config.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index 060390e88e37..9d35614995ee 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -1892,6 +1892,12 @@ static void set_fact_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
 	int ret;
 	int status = *(int *)arg4;
 
+	if (status && no_turbo()) {
+		isst_display_error_info_message(1, "Turbo mode is disabled", 0, 0);
+		ret = -1;
+		goto disp_results;
+	}
+
 	ret = isst_get_ctdp_levels(cpu, &pkg_dev);
 	if (ret) {
 		isst_display_error_info_message(1, "Failed to get number of levels", 0, 0);
-- 
2.35.1