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 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 Watts\n"), 42 pr_prefix); 43 44 if (zone->has_energy_uj) 45 printf(_("%sPower can be monitored in micro Jules\n"), 46 pr_prefix); 47 48 printf("\n"); 49 50 return ret; 51 } 52 53 static int powercap_show(void) 54 { 55 struct powercap_zone *root_zone; 56 char line[MAX_LINE_LEN] = ""; 57 int ret, val; 58 59 ret = powercap_get_driver(line, MAX_LINE_LEN); 60 if (ret < 0) { 61 printf(_("No powercapping driver loaded\n")); 62 return ret; 63 } 64 65 printf("Driver: %s\n", line); 66 ret = powercap_get_enabled(&val); 67 if (ret < 0) 68 return ret; 69 if (!val) { 70 printf(_("Powercapping is disabled\n")); 71 return -1; 72 } 73 74 printf(_("Powercap domain hierarchy:\n\n")); 75 root_zone = powercap_init_zones(); 76 77 if (root_zone == NULL) { 78 printf(_("No powercap info found\n")); 79 return 1; 80 } 81 82 powercap_walk_zones(root_zone, powercap_print_one_zone); 83 84 return 0; 85 } 86 87 int cmd_cap_set(int argc, char **argv) 88 { 89 return 0; 90 }; 91 int cmd_cap_info(int argc, char **argv) 92 { 93 int ret = 0, cont = 1; 94 95 do { 96 ret = getopt_long(argc, argv, "a", info_opts, NULL); 97 switch (ret) { 98 case '?': 99 cont = 0; 100 break; 101 case -1: 102 cont = 0; 103 break; 104 case 'a': 105 powercap_show_all = 1; 106 break; 107 default: 108 fprintf(stderr, _("invalid or unknown argument\n")); 109 return EXIT_FAILURE; 110 } 111 } while (cont); 112 113 powercap_show(); 114 return 0; 115 } 116