Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *  (C) 2004-2009  Dominik Brodowski <linux@dominikbrodowski.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <limits.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <getopt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "cpufreq.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "cpuidle.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "helpers/helpers.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define NORM_FREQ_LEN 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) static struct option set_opts[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	{"min",		required_argument,	NULL, 'd'},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	{"max",		required_argument,	NULL, 'u'},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	{"governor",	required_argument,	NULL, 'g'},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	{"freq",	required_argument,	NULL, 'f'},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	{"related",	no_argument,		NULL, 'r'},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	{ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) static void print_error(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	printf(_("Error setting new values. Common errors:\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 			"- Do you have proper administration rights? (super-user?)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 			"- Is the governor you requested available and modprobed?\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 			"- Trying to set an invalid policy?\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 			"- Trying to set a specific frequency, but userspace governor is not available,\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 			"   for example because of hardware which cannot be set to a specific frequency\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 			"   or because the userspace governor isn't loaded?\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) struct freq_units {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	char		*str_unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	int		power_of_ten;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) const struct freq_units def_units[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	{"hz", -3},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	{"khz", 0}, /* default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	{"mhz", 3},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	{"ghz", 6},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	{"thz", 9},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	{NULL, 0}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) static void print_unknown_arg(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	printf(_("invalid or unknown argument\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) static unsigned long string_to_frequency(const char *str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	char normalized[NORM_FREQ_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	const struct freq_units *unit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	const char *scan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	char *end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	unsigned long freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	int power = 0, match_count = 0, i, cp, pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	while (*str == '0')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		str++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	for (scan = str; isdigit(*scan) || *scan == '.'; scan++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		if (*scan == '.' && match_count == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			match_count = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		else if (*scan == '.' && match_count == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	if (*scan) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		match_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		for (unit = def_units; unit->str_unit; unit++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			for (i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 			     scan[i] && tolower(scan[i]) == unit->str_unit[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 			     ++i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 				continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 			if (scan[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 				continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 			match_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 			power = unit->power_of_ten;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		if (match_count != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	/* count the number of digits to be copied */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	for (cp = 0; isdigit(str[cp]); cp++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	if (str[cp] == '.') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		while (power > -1 && isdigit(str[cp+1])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			cp++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 			power--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	if (power >= -1) {		/* not enough => pad */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		pad = power + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	} else {			/* too much => strip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		pad = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		cp += power + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	/* check bounds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	if (cp <= 0 || cp + pad > NORM_FREQ_LEN - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	/* copy digits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	for (i = 0; i < cp; i++, str++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		if (*str == '.')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			str++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		normalized[i] = *str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	/* and pad */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	for (; i < cp + pad; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		normalized[i] = '0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	/* round up, down ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	match_count = (normalized[i-1] >= '5');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	/* and drop the decimal part */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	normalized[i-1] = 0; /* cp > 0 && pad >= 0 ==> i > 0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	/* final conversion (and applying rounding) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	errno = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	freq = strtoul(normalized, &end, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	if (errno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		if (match_count && freq != ULONG_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 			freq++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		return freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static int do_new_policy(unsigned int cpu, struct cpufreq_policy *new_pol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	struct cpufreq_policy *cur_pol = cpufreq_get_policy(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	if (!cur_pol) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		printf(_("wrong, unknown or unhandled CPU?\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	if (!new_pol->min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		new_pol->min = cur_pol->min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (!new_pol->max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		new_pol->max = cur_pol->max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if (!new_pol->governor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		new_pol->governor = cur_pol->governor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	ret = cpufreq_set_policy(cpu, new_pol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	cpufreq_put_policy(cur_pol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int do_one_cpu(unsigned int cpu, struct cpufreq_policy *new_pol,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		unsigned long freq, unsigned int pc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	switch (pc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		return cpufreq_set_frequency(cpu, freq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		/* if only one value of a policy is to be changed, we can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		 * use a "fast path".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		if (new_pol->min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 			return cpufreq_modify_policy_min(cpu, new_pol->min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		else if (new_pol->max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 			return cpufreq_modify_policy_max(cpu, new_pol->max);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		else if (new_pol->governor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 			return cpufreq_modify_policy_governor(cpu,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 							new_pol->governor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		/* slow path */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		return do_new_policy(cpu, new_pol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) int cmd_freq_set(int argc, char **argv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	extern char *optarg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	extern int optind, opterr, optopt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	int ret = 0, cont = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	int double_parm = 0, related = 0, policychange = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	unsigned long freq = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	char gov[20];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	unsigned int cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	struct cpufreq_policy new_pol = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		.min = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		.max = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		.governor = NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	/* parameter parsing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		ret = getopt_long(argc, argv, "d:u:g:f:r", set_opts, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		switch (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		case '?':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			print_unknown_arg();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		case -1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			cont = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		case 'r':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 			if (related)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 				double_parm++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 			related++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		case 'd':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 			if (new_pol.min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 				double_parm++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			policychange++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 			new_pol.min = string_to_frequency(optarg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 			if (new_pol.min == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 				print_unknown_arg();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 				return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		case 'u':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			if (new_pol.max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 				double_parm++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 			policychange++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 			new_pol.max = string_to_frequency(optarg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 			if (new_pol.max == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 				print_unknown_arg();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 				return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		case 'f':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 			if (freq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 				double_parm++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 			freq = string_to_frequency(optarg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			if (freq == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 				print_unknown_arg();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 				return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 		case 'g':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 			if (new_pol.governor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 				double_parm++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 			policychange++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			if ((strlen(optarg) < 3) || (strlen(optarg) > 18)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 				print_unknown_arg();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 				return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 			if ((sscanf(optarg, "%19s", gov)) != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 				print_unknown_arg();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 				return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 			new_pol.governor = gov;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	} while (cont);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	/* parameter checking */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	if (double_parm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		printf("the same parameter was passed more than once\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	if (freq && policychange) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		printf(_("the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 				"-g/--governor parameters\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	if (!freq && !policychange) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		printf(_("At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 				"-g/--governor must be passed\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	/* Default is: set all CPUs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	if (bitmask_isallclear(cpus_chosen))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 		bitmask_setall(cpus_chosen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	/* Also set frequency settings for related CPUs if -r is passed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	if (related) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		for (cpu = bitmask_first(cpus_chosen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		     cpu <= bitmask_last(cpus_chosen); cpu++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 			struct cpufreq_affected_cpus *cpus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 			if (!bitmask_isbitset(cpus_chosen, cpu) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 			    cpupower_is_cpu_online(cpu) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 				continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 			cpus = cpufreq_get_related_cpus(cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 			if (!cpus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 			while (cpus->next) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 				bitmask_setbit(cpus_chosen, cpus->cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 				cpus = cpus->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 			/* Set the last cpu in related cpus list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 			bitmask_setbit(cpus_chosen, cpus->cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 			cpufreq_put_related_cpus(cpus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	/* loop over CPUs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	for (cpu = bitmask_first(cpus_chosen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	     cpu <= bitmask_last(cpus_chosen); cpu++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 		if (!bitmask_isbitset(cpus_chosen, cpu) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 		    cpupower_is_cpu_online(cpu) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 		printf(_("Setting cpu: %d\n"), cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 		ret = do_one_cpu(cpu, &new_pol, freq, policychange);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 			print_error();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }