tools/power turbostat: dump p-state software config

cpu1: cpufreq driver: acpi-cpufreq
cpu1: cpufreq governor: ondemand
cpufreq boost: 1

or

cpu0: cpufreq driver: intel_pstate
cpu0: cpufreq governor: powersave
cpufreq intel_pstate no_turbo: 0

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 2c674ad5ab80..7af5f42a9792 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2979,6 +2979,54 @@ dump_sysfs_cstate_config(void)
                 fclose(input);
         }
 }
+static void
+dump_sysfs_pstate_config(void)
+{
+        char path[64];
+        char driver_buf[64];
+        char governor_buf[64];
+        FILE *input;
+        int turbo;
+
+        sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_driver",
+                        base_cpu);
+        input = fopen(path, "r");
+        if (input == NULL) {
+                fprintf(stderr, "NSFOD %s\n", path);
+                return;
+        }
+        fgets(driver_buf, sizeof(driver_buf), input);
+        fclose(input);
+
+        sprintf(path, "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_governor",
+                        base_cpu);
+        input = fopen(path, "r");
+        if (input == NULL) {
+                fprintf(stderr, "NSFOD %s\n", path);
+                return;
+        }
+        fgets(governor_buf, sizeof(governor_buf), input);
+        fclose(input);
+
+        fprintf(outf, "cpu%d: cpufreq driver: %s", base_cpu, driver_buf);
+        fprintf(outf, "cpu%d: cpufreq governor: %s", base_cpu, governor_buf);
+
+        sprintf(path, "/sys/devices/system/cpu/cpufreq/boost");
+        input = fopen(path, "r");
+        if (input != NULL) {
+                fscanf(input, "%d", &turbo);
+                fprintf(outf, "cpufreq boost: %d\n", turbo);
+                fclose(input);
+        }
+
+        sprintf(path, "/sys/devices/system/cpu/intel_pstate/no_turbo");
+        input = fopen(path, "r");
+        if (input != NULL) {
+                fscanf(input, "%d", &turbo);
+                fprintf(outf, "cpufreq intel_pstate no_turbo: %d\n", turbo);
+                fclose(input);
+        }
+}
 
 
 /*
@@ -4168,6 +4216,8 @@ void process_cpuid()
 
         if (!quiet)
                 dump_sysfs_cstate_config();
+        if (!quiet)
+                dump_sysfs_pstate_config();
 
         if (has_skl_msrs(family, model))
                 calculate_tsc_tweak();