1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * (C) 2016 SUSE Software Solutions GmbH
4 * Thomas Renninger <trenn@suse.de>
5 */
6
7 #include <unistd.h>
8 #include <stdio.h>
9 #include <errno.h>
10 #include <stdlib.h>
11 #include <stdint.h>
12 #include <string.h>
13
14 #include <getopt.h>
15
16 #include "powercap.h"
17 #include "helpers/helpers.h"
18
19 int powercap_show_all;
20
21 static struct option info_opts[] = {
22 { "all", no_argument, NULL, 'a'},
23 { },
24 };
25
powercap_print_one_zone(struct powercap_zone * zone)26 static int powercap_print_one_zone(struct powercap_zone *zone)
27 {
28 int mode, i, ret = 0;
29 char pr_prefix[1024] = "";
30
31 for (i = 0; i < zone->tree_depth && i < POWERCAP_MAX_TREE_DEPTH; i++)
32 strcat(pr_prefix, "\t");
33
34 printf("%sZone: %s", pr_prefix, zone->name);
35 ret = powercap_zone_get_enabled(zone, &mode);
36 if (ret < 0)
37 return ret;
38 printf(" (%s)\n", mode ? "enabled" : "disabled");
39
40 if (zone->has_power_uw)
41 printf(_("%sPower can be monitored in micro Jules\n"),
42 pr_prefix);
43
44 if (zone->has_energy_uj)
45 printf(_("%sPower can be monitored in micro Watts\n"),
46 pr_prefix);
47
48 printf("\n");
49
50 if (ret != 0)
51 return ret;
52 return ret;
53 }
54
powercap_show(void)55 static int powercap_show(void)
56 {
57 struct powercap_zone *root_zone;
58 char line[MAX_LINE_LEN] = "";
59 int ret, val;
60
61 ret = powercap_get_driver(line, MAX_LINE_LEN);
62 if (ret < 0) {
63 printf(_("No powercapping driver loaded\n"));
64 return ret;
65 }
66
67 printf("Driver: %s\n", line);
68 ret = powercap_get_enabled(&val);
69 if (ret < 0)
70 return ret;
71 if (!val) {
72 printf(_("Powercapping is disabled\n"));
73 return -1;
74 }
75
76 printf(_("Powercap domain hierarchy:\n\n"));
77 root_zone = powercap_init_zones();
78
79 if (root_zone == NULL) {
80 printf(_("No powercap info found\n"));
81 return 1;
82 }
83
84 powercap_walk_zones(root_zone, powercap_print_one_zone);
85
86 return 0;
87 }
88
cmd_cap_set(int argc,char ** argv)89 int cmd_cap_set(int argc, char **argv)
90 {
91 return 0;
92 };
cmd_cap_info(int argc,char ** argv)93 int cmd_cap_info(int argc, char **argv)
94 {
95 int ret = 0, cont = 1;
96
97 do {
98 ret = getopt_long(argc, argv, "a", info_opts, NULL);
99 switch (ret) {
100 case '?':
101 cont = 0;
102 break;
103 case -1:
104 cont = 0;
105 break;
106 case 'a':
107 powercap_show_all = 1;
108 break;
109 default:
110 fprintf(stderr, _("invalid or unknown argument\n"));
111 return EXIT_FAILURE;
112 }
113 } while (cont);
114
115 powercap_show();
116 return 0;
117 }
118