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Diffstat (limited to 'tools/power/cpupower/utils/powercap-info.c')
-rw-r--r--tools/power/cpupower/utils/powercap-info.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/tools/power/cpupower/utils/powercap-info.c b/tools/power/cpupower/utils/powercap-info.c
new file mode 100644
index 000000000000..3ea4486f1a0e
--- /dev/null
+++ b/tools/power/cpupower/utils/powercap-info.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * (C) 2016 SUSE Software Solutions GmbH
+ * Thomas Renninger <trenn@suse.de>
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <getopt.h>
+
+#include "powercap.h"
+#include "helpers/helpers.h"
+
+int powercap_show_all;
+
+static struct option info_opts[] = {
+ { "all", no_argument, NULL, 'a'},
+ { },
+};
+
+static int powercap_print_one_zone(struct powercap_zone *zone)
+{
+ int mode, i, ret = 0;
+ char pr_prefix[1024] = "";
+
+ for (i = 0; i < zone->tree_depth && i < POWERCAP_MAX_TREE_DEPTH; i++)
+ strcat(pr_prefix, "\t");
+
+ printf("%sZone: %s", pr_prefix, zone->name);
+ ret = powercap_zone_get_enabled(zone, &mode);
+ if (ret < 0)
+ return ret;
+ printf(" (%s)\n", mode ? "enabled" : "disabled");
+
+ if (zone->has_power_uw)
+ printf(_("%sPower can be monitored in micro Jules\n"),
+ pr_prefix);
+
+ if (zone->has_energy_uj)
+ printf(_("%sPower can be monitored in micro Watts\n"),
+ pr_prefix);
+
+ printf("\n");
+
+ if (ret != 0)
+ return ret;
+ return ret;
+}
+
+static int powercap_show(void)
+{
+ struct powercap_zone *root_zone;
+ char line[MAX_LINE_LEN] = "";
+ int ret, val;
+
+ ret = powercap_get_driver(line, MAX_LINE_LEN);
+ if (ret < 0) {
+ printf(_("No powercapping driver loaded\n"));
+ return ret;
+ }
+
+ printf("Driver: %s\n", line);
+ ret = powercap_get_enabled(&val);
+ if (ret < 0)
+ return ret;
+ if (!val) {
+ printf(_("Powercapping is disabled\n"));
+ return -1;
+ }
+
+ printf(_("Powercap domain hierarchy:\n\n"));
+ root_zone = powercap_init_zones();
+
+ if (root_zone == NULL) {
+ printf(_("No powercap info found\n"));
+ return 1;
+ }
+
+ powercap_walk_zones(root_zone, powercap_print_one_zone);
+
+ return 0;
+}
+
+int cmd_cap_set(int argc, char **argv)
+{
+ return 0;
+};
+int cmd_cap_info(int argc, char **argv)
+{
+ int ret = 0, cont = 1;
+
+ do {
+ ret = getopt_long(argc, argv, "a", info_opts, NULL);
+ switch (ret) {
+ case '?':
+ cont = 0;
+ break;
+ case -1:
+ cont = 0;
+ break;
+ case 'a':
+ powercap_show_all = 1;
+ break;
+ default:
+ fprintf(stderr, _("invalid or unknown argument\n"));
+ return EXIT_FAILURE;
+ }
+ } while (cont);
+
+ powercap_show();
+ return 0;
+}