linux-kernel - [PATCH 03/27] tools/power/x86/intel-speed-select: Enhance core-power info command

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Date:   Thu,  5 Mar 2020 14:45:14 -0800
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     andriy.shevchenko@...ux.intel.com
Cc:     platform-driver-x86@...r.kernel.org, prarit@...hat.com,
        linux-kernel@...r.kernel.org,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: [PATCH 03/27] tools/power/x86/intel-speed-select: Enhance core-power info command

In addition to CLOS enable status, also show the core-power feature
status. This will help why clos enable status didn't give desired
results as the core-power feature may be disabled or unsupported.

The new display looks as follows:

$intel-speed-select core-power info
Intel(R) Speed Select Technology
..
 package-0
  die-0
    cpu-0
      core-power
        support-status:supported
        enable-status:enabled
        clos-enable-status:1
        priority-type:0

In the above display "support-status" and "enable-status", shows the
status of the core-power feature and "clos-enable-status", shows the
status of the clos.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
 .../power/x86/intel-speed-select/isst-config.c  |  9 +++++++--
 .../power/x86/intel-speed-select/isst-display.c | 17 ++++++++++++++++-
 tools/power/x86/intel-speed-select/isst.h       |  4 +++-
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index c0de18e10cda..405b03cba248 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -1754,8 +1754,13 @@ static void get_clos_info_for_cpu(int cpu, void *arg1, void *arg2, void *arg3,
 	ret = isst_clos_get_clos_information(cpu, &enable, &prio_type);
 	if (ret)
 		perror("isst_clos_get_info");
-	else
-		isst_clos_display_clos_information(cpu, outf, enable, prio_type);
+	else {
+		int cp_state, cp_cap;
+
+		isst_read_pm_config(cpu, &cp_state, &cp_cap);
+		isst_clos_display_clos_information(cpu, outf, enable, prio_type,
+						   cp_state, cp_cap);
+	}
 }
 
 static void dump_clos_info(int arg)
diff --git a/tools/power/x86/intel-speed-select/isst-display.c b/tools/power/x86/intel-speed-select/isst-display.c
index 3d70be2a9f61..30377acb909d 100644
--- a/tools/power/x86/intel-speed-select/isst-display.c
+++ b/tools/power/x86/intel-speed-select/isst-display.c
@@ -589,7 +589,8 @@ void isst_clos_display_information(int cpu, FILE *outf, int clos,
 }
 
 void isst_clos_display_clos_information(int cpu, FILE *outf,
-					int clos_enable, int type)
+					int clos_enable, int type,
+					int state, int cap)
 {
 	char header[256];
 	char value[256];
@@ -605,7 +606,21 @@ void isst_clos_display_clos_information(int cpu, FILE *outf,
 	snprintf(header, sizeof(header), "core-power");
 	format_and_print(outf, 4, header, NULL);
 
+	snprintf(header, sizeof(header), "support-status");
+	if (cap)
+		snprintf(value, sizeof(value), "supported");
+	else
+		snprintf(value, sizeof(value), "unsupported");
+	format_and_print(outf, 5, header, value);
+
 	snprintf(header, sizeof(header), "enable-status");
+	if (state)
+		snprintf(value, sizeof(value), "enabled");
+	else
+		snprintf(value, sizeof(value), "disabled");
+	format_and_print(outf, 5, header, value);
+
+	snprintf(header, sizeof(header), "clos-enable-status");
 	snprintf(value, sizeof(value), "%d", clos_enable);
 	format_and_print(outf, 5, header, value);
 
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index ad5aa6341d0f..53e147a9a295 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -245,7 +245,9 @@ extern void isst_display_result(int cpu, FILE *outf, char *feature, char *cmd,
 
 extern int isst_clos_get_clos_information(int cpu, int *enable, int *type);
 extern void isst_clos_display_clos_information(int cpu, FILE *outf,
-					       int clos_enable, int type);
+					       int clos_enable, int type,
+					       int state, int cap);
 extern int is_clx_n_platform(void);
 extern int get_cpufreq_base_freq(int cpu);
+extern int isst_read_pm_config(int cpu, int *cp_state, int *cp_cap);
 #endif
-- 
2.24.1