1 // SPDX-License-Identifier: GPL-2.0-only
3  *  (C) 2004-2009  Dominik Brodowski <linux@dominikbrodowski.de>
39 		value[LINE_LEN - 1] = '\0';  in count_cpus()
40 		if (strlen(value) < (LINE_LEN - 2))  in count_cpus()
42 		if (strstr(value, "cpu "))  in count_cpus()
44 		if (sscanf(value, "cpu%d ", &cpunr) != 1)  in count_cpus()
51 	/* cpu count starts from 0, on error return 1 (UP) */  in count_cpus()
58 	unsigned int cpu, nr_cpus;  in proc_cpufreq_output()  local
64 	printf(_("          minimum CPU frequency  -  maximum CPU frequency  -  governor\n"));  in proc_cpufreq_output()
67 	for (cpu = 0; cpu < nr_cpus; cpu++) {  in proc_cpufreq_output()
68 		policy = cpufreq_get_policy(cpu);  in proc_cpufreq_output()
72 		if (cpufreq_get_hardware_limits(cpu, &min, &max)) {  in proc_cpufreq_output()
75 			min_pctg = (policy->min * 100) / max;  in proc_cpufreq_output()
76 			max_pctg = (policy->max * 100) / max;  in proc_cpufreq_output()
78 		printf("CPU%3d    %9lu kHz (%3d %%)  -  %9lu kHz (%3d %%)  -  %s\n",  in proc_cpufreq_output()
79 			cpu , policy->min, max ? min_pctg : 0, policy->max,  in proc_cpufreq_output()
80 			max ? max_pctg : 0, policy->governor);  in proc_cpufreq_output()
125 static int get_boost_mode_x86(unsigned int cpu)  in get_boost_mode_x86()  argument
131 	ret = cpufreq_has_x86_boost_support(cpu, &support, &active, &b_states);  in get_boost_mode_x86()
134 				" on CPU %d -- are you root?\n"), cpu);  in get_boost_mode_x86()
154 		ret = decode_pstates(cpu, b_states, pstates, &pstate_no);  in get_boost_mode_x86()
164 				printf(_("    Pstate-Pb%d: %luMHz (boost state)"  in get_boost_mode_x86()
167 				printf(_("    Pstate-P%d:  %luMHz\n"),  in get_boost_mode_x86()
168 				       i - b_states, pstates[i]);  in get_boost_mode_x86()
180 		intel_turbo_ratio = msr_intel_get_turbo_ratio(cpu);  in get_boost_mode_x86()
181 		dprint ("    Ratio: 0x%llx - bclk: %f\n",  in get_boost_mode_x86()
207 static int get_boost_mode_generic(unsigned int cpu)  in get_boost_mode_generic()  argument
219 /* --boost / -b */
221 static int get_boost_mode(unsigned int cpu)  in get_boost_mode()  argument
228 		return get_boost_mode_x86(cpu);  in get_boost_mode()
230 		get_boost_mode_generic(cpu);  in get_boost_mode()
232 	freqs = cpufreq_get_boost_frequencies(cpu);  in get_boost_mode()
235 		while (freqs->next) {  in get_boost_mode()
236 			print_speed(freqs->frequency, no_rounding);  in get_boost_mode()
238 			freqs = freqs->next;  in get_boost_mode()
240 		print_speed(freqs->frequency, no_rounding);  in get_boost_mode()
248 /* --freq / -f */
250 static int get_freq_kernel(unsigned int cpu, unsigned int human)  in get_freq_kernel()  argument
252 	unsigned long freq = cpufreq_get_freq_kernel(cpu);  in get_freq_kernel()
253 	printf(_("  current CPU frequency: "));  in get_freq_kernel()
256 		return -EINVAL;  in get_freq_kernel()
267 /* --hwfreq / -w */
269 static int get_freq_hardware(unsigned int cpu, unsigned int human)  in get_freq_hardware()  argument
274 		return -EINVAL;  in get_freq_hardware()
276 	freq = cpufreq_get_freq_hardware(cpu);  in get_freq_hardware()
277 	printf(_("  current CPU frequency: "));  in get_freq_hardware()
280 		return -EINVAL;  in get_freq_hardware()
290 /* --hwlimits / -l */
292 static int get_hardware_limits(unsigned int cpu, unsigned int human)  in get_hardware_limits()  argument
296 	if (cpufreq_get_hardware_limits(cpu, &min, &max)) {  in get_hardware_limits()
298 		return -EINVAL;  in get_hardware_limits()
304 		printf(" - ");  in get_hardware_limits()
313 /* --driver / -d */
315 static int get_driver(unsigned int cpu)  in get_driver()  argument
317 	char *driver = cpufreq_get_driver(cpu);  in get_driver()  local
318 	if (!driver) {  in get_driver()
319 		printf(_("  no or unknown cpufreq driver is active on this CPU\n"));  in get_driver()
320 		return -EINVAL;  in get_driver()
322 	printf("  driver: %s\n", driver);  in get_driver()
323 	cpufreq_put_driver(driver);  in get_driver()
327 /* --policy / -p */
329 static int get_policy(unsigned int cpu)  in get_policy()  argument
331 	struct cpufreq_policy *policy = cpufreq_get_policy(cpu);  in get_policy()
334 		return -EINVAL;  in get_policy()
337 	print_speed(policy->min, no_rounding);  in get_policy()
339 	print_speed(policy->max, no_rounding);  in get_policy()
344 	       policy->governor);  in get_policy()
349 /* --governors / -g */
351 static int get_available_governors(unsigned int cpu)  in get_available_governors()  argument
354 		cpufreq_get_available_governors(cpu);  in get_available_governors()
359 		return -EINVAL;  in get_available_governors()
362 	while (governors->next) {  in get_available_governors()
363 		printf("%s ", governors->governor);  in get_available_governors()
364 		governors = governors->next;  in get_available_governors()
366 	printf("%s\n", governors->governor);  in get_available_governors()
372 /* --affected-cpus  / -a */
374 static int get_affected_cpus(unsigned int cpu)  in get_affected_cpus()  argument
376 	struct cpufreq_affected_cpus *cpus = cpufreq_get_affected_cpus(cpu);  in get_affected_cpus()
381 		return -EINVAL;  in get_affected_cpus()
384 	while (cpus->next) {  in get_affected_cpus()
385 		printf("%d ", cpus->cpu);  in get_affected_cpus()
386 		cpus = cpus->next;  in get_affected_cpus()
388 	printf("%d\n", cpus->cpu);  in get_affected_cpus()
393 /* --related-cpus  / -r */
395 static int get_related_cpus(unsigned int cpu)  in get_related_cpus()  argument
397 	struct cpufreq_affected_cpus *cpus = cpufreq_get_related_cpus(cpu);  in get_related_cpus()
402 		return -EINVAL;  in get_related_cpus()
405 	while (cpus->next) {  in get_related_cpus()
406 		printf("%d ", cpus->cpu);  in get_related_cpus()
407 		cpus = cpus->next;  in get_related_cpus()
409 	printf("%d\n", cpus->cpu);  in get_related_cpus()
414 /* --stats / -s */
416 static int get_freq_stats(unsigned int cpu, unsigned int human)  in get_freq_stats()  argument
418 	unsigned long total_trans = cpufreq_get_transitions(cpu);  in get_freq_stats()
420 	struct cpufreq_stats *stats = cpufreq_get_stats(cpu, &total_time);  in get_freq_stats()
423 			print_speed(stats->frequency, no_rounding);  in get_freq_stats()
425 				(100.0 * stats->time_in_state) / total_time);  in get_freq_stats()
428 				stats->frequency, stats->time_in_state);  in get_freq_stats()
429 		stats = stats->next;  in get_freq_stats()
439 /* --epp / -z */
441 static int get_epp(unsigned int cpu, bool interactive)  in get_epp()  argument
445 	epp = cpufreq_get_energy_performance_preference(cpu);  in get_epp()
447 		return -EINVAL;  in get_epp()
456 /* --latency / -y */
458 static int get_latency(unsigned int cpu, unsigned int human)  in get_latency()  argument
460 	unsigned long latency = cpufreq_get_transition_latency(cpu);  in get_latency()
462 	if (!get_epp(cpu, false))  in get_latency()
463 		return -EINVAL;  in get_latency()
468 		return -EINVAL;  in get_latency()
479 /* --performance / -c */
481 static int get_perf_cap(unsigned int cpu)  in get_perf_cap()  argument
485 		amd_pstate_show_perf_and_freq(cpu, no_rounding);  in get_perf_cap()
490 static void debug_output_one(unsigned int cpu)  in debug_output_one()  argument
494 	get_driver(cpu);  in debug_output_one()
495 	get_related_cpus(cpu);  in debug_output_one()
496 	get_affected_cpus(cpu);  in debug_output_one()
497 	get_latency(cpu, 1);  in debug_output_one()
498 	get_epp(cpu, true);  in debug_output_one()
499 	get_hardware_limits(cpu, 1);  in debug_output_one()
501 	freqs = cpufreq_get_available_frequencies(cpu);  in debug_output_one()
504 		while (freqs->next) {  in debug_output_one()
505 			print_speed(freqs->frequency, no_rounding);  in debug_output_one()
507 			freqs = freqs->next;  in debug_output_one()
509 		print_speed(freqs->frequency, no_rounding);  in debug_output_one()
514 	get_available_governors(cpu);  in debug_output_one()
515 	get_policy(cpu);  in debug_output_one()
516 	if (get_freq_hardware(cpu, 1) < 0)  in debug_output_one()
517 		get_freq_kernel(cpu, 1);  in debug_output_one()
518 	get_boost_mode(cpu);  in debug_output_one()
519 	get_perf_cap(cpu);  in debug_output_one()
528 	{"driver",	 no_argument,		 NULL,	 'd'},
531 	{"related-cpus",  no_argument,	 NULL,	 'r'},
532 	{"affected-cpus", no_argument,	 NULL,	 'a'},
537 	{"no-rounding", no_argument,	 NULL,	 'n'},
548 	unsigned int cpu = 0;  in cmd_freq_info()  local
560 		case -1:  in cmd_freq_info()
579 				output_param = -1;  in cmd_freq_info()
587 				output_param = -1;  in cmd_freq_info()
606 				 "combined with passing a --cpu argument\n"));  in cmd_freq_info()
607 			return -EINVAL;  in cmd_freq_info()
621 	case -1:  in cmd_freq_info()
622 		printf(_("You can't specify more than one --cpu parameter and/or\n"  in cmd_freq_info()
623 		       "more than one output-specific argument\n"));  in cmd_freq_info()
624 		return -EINVAL;  in cmd_freq_info()
627 		return -EINVAL;  in cmd_freq_info()
633 	for (cpu = bitmask_first(cpus_chosen);  in cmd_freq_info()
634 	     cpu <= bitmask_last(cpus_chosen); cpu++) {  in cmd_freq_info()
636 		if (!bitmask_isbitset(cpus_chosen, cpu))  in cmd_freq_info()
639 		printf(_("analyzing CPU %d:\n"), cpu);  in cmd_freq_info()
641 		if (sysfs_is_cpu_online(cpu) != 1) {  in cmd_freq_info()
649 			get_boost_mode(cpu);  in cmd_freq_info()
652 			debug_output_one(cpu);  in cmd_freq_info()
655 			ret = get_affected_cpus(cpu);  in cmd_freq_info()
658 			ret = get_related_cpus(cpu);  in cmd_freq_info()
661 			ret = get_available_governors(cpu);  in cmd_freq_info()
664 			ret = get_policy(cpu);  in cmd_freq_info()
667 			ret = get_driver(cpu);  in cmd_freq_info()
670 			ret = get_hardware_limits(cpu, human);  in cmd_freq_info()
673 			ret = get_freq_hardware(cpu, human);  in cmd_freq_info()
676 			ret = get_freq_kernel(cpu, human);  in cmd_freq_info()
679 			ret = get_freq_stats(cpu, human);  in cmd_freq_info()
682 			ret = get_latency(cpu, human);  in cmd_freq_info()
685 			ret = get_perf_cap(cpu);  in cmd_freq_info()
688 			ret = get_epp(cpu, true);  in cmd_freq_info()