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c4f3610e TR |
1 | #include <unistd.h> |
2 | #include <stdio.h> | |
3 | #include <errno.h> | |
4 | #include <stdlib.h> | |
5 | #include <limits.h> | |
6 | #include <string.h> | |
7 | #include <ctype.h> | |
c4f3610e TR |
8 | #include <getopt.h> |
9 | ||
ac5a181d TR |
10 | #include <cpufreq.h> |
11 | #include <cpuidle.h> | |
12 | ||
c4f3610e | 13 | #include "helpers/helpers.h" |
c4f3610e TR |
14 | |
15 | static struct option info_opts[] = { | |
57ab3b08 SR |
16 | {"disable", required_argument, NULL, 'd'}, |
17 | {"enable", required_argument, NULL, 'e'}, | |
18 | {"disable-by-latency", required_argument, NULL, 'D'}, | |
19 | {"enable-all", no_argument, NULL, 'E'}, | |
20 | { }, | |
c4f3610e TR |
21 | }; |
22 | ||
23 | ||
24 | int cmd_idle_set(int argc, char **argv) | |
25 | { | |
26 | extern char *optarg; | |
27 | extern int optind, opterr, optopt; | |
69cd502d TR |
28 | int ret = 0, cont = 1, param = 0, disabled; |
29 | unsigned long long latency = 0, state_latency; | |
30 | unsigned int cpu = 0, idlestate = 0, idlestates = 0; | |
31 | char *endptr; | |
c4f3610e TR |
32 | |
33 | do { | |
69cd502d | 34 | ret = getopt_long(argc, argv, "d:e:ED:", info_opts, NULL); |
c4f3610e TR |
35 | if (ret == -1) |
36 | break; | |
37 | switch (ret) { | |
38 | case '?': | |
39 | param = '?'; | |
40 | cont = 0; | |
41 | break; | |
42 | case 'd': | |
43 | if (param) { | |
44 | param = -1; | |
45 | cont = 0; | |
46 | break; | |
47 | } | |
48 | param = ret; | |
49 | idlestate = atoi(optarg); | |
50 | break; | |
51 | case 'e': | |
52 | if (param) { | |
53 | param = -1; | |
54 | cont = 0; | |
55 | break; | |
56 | } | |
57 | param = ret; | |
58 | idlestate = atoi(optarg); | |
59 | break; | |
69cd502d TR |
60 | case 'D': |
61 | if (param) { | |
62 | param = -1; | |
63 | cont = 0; | |
64 | break; | |
65 | } | |
66 | param = ret; | |
67 | latency = strtoull(optarg, &endptr, 10); | |
68 | if (*endptr != '\0') { | |
69 | printf(_("Bad latency value: %s\n"), optarg); | |
70 | exit(EXIT_FAILURE); | |
71 | } | |
72 | break; | |
73 | case 'E': | |
74 | if (param) { | |
75 | param = -1; | |
76 | cont = 0; | |
77 | break; | |
78 | } | |
79 | param = ret; | |
80 | break; | |
c4f3610e TR |
81 | case -1: |
82 | cont = 0; | |
83 | break; | |
84 | } | |
85 | } while (cont); | |
86 | ||
87 | switch (param) { | |
88 | case -1: | |
89 | printf(_("You can't specify more than one " | |
90 | "output-specific argument\n")); | |
91 | exit(EXIT_FAILURE); | |
92 | case '?': | |
93 | printf(_("invalid or unknown argument\n")); | |
94 | exit(EXIT_FAILURE); | |
95 | } | |
96 | ||
97 | /* Default is: set all CPUs */ | |
98 | if (bitmask_isallclear(cpus_chosen)) | |
99 | bitmask_setall(cpus_chosen); | |
100 | ||
101 | for (cpu = bitmask_first(cpus_chosen); | |
102 | cpu <= bitmask_last(cpus_chosen); cpu++) { | |
103 | ||
104 | if (!bitmask_isbitset(cpus_chosen, cpu)) | |
105 | continue; | |
106 | ||
ac5a181d | 107 | if (cpupower_is_cpu_online(cpu) != 1) |
69cd502d TR |
108 | continue; |
109 | ||
ac5a181d | 110 | idlestates = cpuidle_state_count(cpu); |
69cd502d TR |
111 | if (idlestates <= 0) |
112 | continue; | |
c4f3610e | 113 | |
69cd502d | 114 | switch (param) { |
c4f3610e | 115 | case 'd': |
ac5a181d | 116 | ret = cpuidle_state_disable(cpu, idlestate, 1); |
c4f3610e TR |
117 | if (ret == 0) |
118 | printf(_("Idlestate %u disabled on CPU %u\n"), idlestate, cpu); | |
119 | else if (ret == -1) | |
120 | printf(_("Idlestate %u not available on CPU %u\n"), | |
121 | idlestate, cpu); | |
122 | else if (ret == -2) | |
123 | printf(_("Idlestate disabling not supported by kernel\n")); | |
124 | else | |
125 | printf(_("Idlestate %u not disabled on CPU %u\n"), | |
126 | idlestate, cpu); | |
127 | break; | |
128 | case 'e': | |
ac5a181d | 129 | ret = cpuidle_state_disable(cpu, idlestate, 0); |
c4f3610e TR |
130 | if (ret == 0) |
131 | printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); | |
132 | else if (ret == -1) | |
133 | printf(_("Idlestate %u not available on CPU %u\n"), | |
134 | idlestate, cpu); | |
135 | else if (ret == -2) | |
136 | printf(_("Idlestate enabling not supported by kernel\n")); | |
137 | else | |
138 | printf(_("Idlestate %u not enabled on CPU %u\n"), | |
139 | idlestate, cpu); | |
140 | break; | |
69cd502d TR |
141 | case 'D': |
142 | for (idlestate = 0; idlestate < idlestates; idlestate++) { | |
ac5a181d | 143 | disabled = cpuidle_is_state_disabled |
69cd502d | 144 | (cpu, idlestate); |
ac5a181d | 145 | state_latency = cpuidle_state_latency |
69cd502d | 146 | (cpu, idlestate); |
19c9fb89 TR |
147 | if (disabled == 1) { |
148 | if (latency > state_latency){ | |
ac5a181d | 149 | ret = cpuidle_state_disable |
19c9fb89 TR |
150 | (cpu, idlestate, 0); |
151 | if (ret == 0) | |
152 | printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); | |
153 | } | |
69cd502d | 154 | continue; |
19c9fb89 TR |
155 | } |
156 | if (latency <= state_latency){ | |
ac5a181d | 157 | ret = cpuidle_state_disable |
19c9fb89 TR |
158 | (cpu, idlestate, 1); |
159 | if (ret == 0) | |
69cd502d | 160 | printf(_("Idlestate %u disabled on CPU %u\n"), idlestate, cpu); |
19c9fb89 | 161 | } |
69cd502d TR |
162 | } |
163 | break; | |
164 | case 'E': | |
165 | for (idlestate = 0; idlestate < idlestates; idlestate++) { | |
ac5a181d | 166 | disabled = cpuidle_is_state_disabled |
69cd502d TR |
167 | (cpu, idlestate); |
168 | if (disabled == 1) { | |
ac5a181d | 169 | ret = cpuidle_state_disable |
69cd502d TR |
170 | (cpu, idlestate, 0); |
171 | if (ret == 0) | |
172 | printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); | |
173 | } | |
174 | } | |
175 | break; | |
c4f3610e TR |
176 | default: |
177 | /* Not reachable with proper args checking */ | |
178 | printf(_("Invalid or unknown argument\n")); | |
179 | exit(EXIT_FAILURE); | |
180 | break; | |
181 | } | |
182 | } | |
183 | return EXIT_SUCCESS; | |
184 | } |