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 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 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 89 int cmd_cap_set(int argc, char **argv) 90 { 91 return 0; 92 }; 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