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Diffstat (limited to 'tools/power/cpupower/utils/cpufreq-info.c')
-rw-r--r--tools/power/cpupower/utils/cpufreq-info.c110
1 files changed, 70 insertions, 40 deletions
diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index 28953c9a7bd5..b4b90a97662c 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -82,29 +82,42 @@ static void proc_cpufreq_output(void)
}
}
+static int no_rounding;
static void print_speed(unsigned long speed)
{
unsigned long tmp;
- if (speed > 1000000) {
- tmp = speed % 10000;
- if (tmp >= 5000)
- speed += 10000;
- printf("%u.%02u GHz", ((unsigned int) speed/1000000),
- ((unsigned int) (speed%1000000)/10000));
- } else if (speed > 100000) {
- tmp = speed % 1000;
- if (tmp >= 500)
- speed += 1000;
- printf("%u MHz", ((unsigned int) speed / 1000));
- } else if (speed > 1000) {
- tmp = speed % 100;
- if (tmp >= 50)
- speed += 100;
- printf("%u.%01u MHz", ((unsigned int) speed/1000),
- ((unsigned int) (speed%1000)/100));
- } else
- printf("%lu kHz", speed);
+ if (no_rounding) {
+ if (speed > 1000000)
+ printf("%u.%06u GHz", ((unsigned int) speed/1000000),
+ ((unsigned int) speed%1000000));
+ else if (speed > 100000)
+ printf("%u MHz", (unsigned int) speed);
+ else if (speed > 1000)
+ printf("%u.%03u MHz", ((unsigned int) speed/1000),
+ (unsigned int) (speed%1000));
+ else
+ printf("%lu kHz", speed);
+ } else {
+ if (speed > 1000000) {
+ tmp = speed%10000;
+ if (tmp >= 5000)
+ speed += 10000;
+ printf("%u.%02u GHz", ((unsigned int) speed/1000000),
+ ((unsigned int) (speed%1000000)/10000));
+ } else if (speed > 100000) {
+ tmp = speed%1000;
+ if (tmp >= 500)
+ speed += 1000;
+ printf("%u MHz", ((unsigned int) speed/1000));
+ } else if (speed > 1000) {
+ tmp = speed%100;
+ if (tmp >= 50)
+ speed += 100;
+ printf("%u.%01u MHz", ((unsigned int) speed/1000),
+ ((unsigned int) (speed%1000)/100));
+ }
+ }
return;
}
@@ -113,26 +126,38 @@ static void print_duration(unsigned long duration)
{
unsigned long tmp;
- if (duration > 1000000) {
- tmp = duration % 10000;
- if (tmp >= 5000)
- duration += 10000;
- printf("%u.%02u ms", ((unsigned int) duration/1000000),
- ((unsigned int) (duration%1000000)/10000));
- } else if (duration > 100000) {
- tmp = duration % 1000;
- if (tmp >= 500)
- duration += 1000;
- printf("%u us", ((unsigned int) duration / 1000));
- } else if (duration > 1000) {
- tmp = duration % 100;
- if (tmp >= 50)
- duration += 100;
- printf("%u.%01u us", ((unsigned int) duration/1000),
- ((unsigned int) (duration%1000)/100));
- } else
- printf("%lu ns", duration);
-
+ if (no_rounding) {
+ if (duration > 1000000)
+ printf("%u.%06u ms", ((unsigned int) duration/1000000),
+ ((unsigned int) duration%1000000));
+ else if (duration > 100000)
+ printf("%u us", ((unsigned int) duration/1000));
+ else if (duration > 1000)
+ printf("%u.%03u us", ((unsigned int) duration/1000),
+ ((unsigned int) duration%1000));
+ else
+ printf("%lu ns", duration);
+ } else {
+ if (duration > 1000000) {
+ tmp = duration%10000;
+ if (tmp >= 5000)
+ duration += 10000;
+ printf("%u.%02u ms", ((unsigned int) duration/1000000),
+ ((unsigned int) (duration%1000000)/10000));
+ } else if (duration > 100000) {
+ tmp = duration%1000;
+ if (tmp >= 500)
+ duration += 1000;
+ printf("%u us", ((unsigned int) duration / 1000));
+ } else if (duration > 1000) {
+ tmp = duration%100;
+ if (tmp >= 50)
+ duration += 100;
+ printf("%u.%01u us", ((unsigned int) duration/1000),
+ ((unsigned int) (duration%1000)/100));
+ } else
+ printf("%lu ns", duration);
+ }
return;
}
@@ -525,6 +550,7 @@ static struct option info_opts[] = {
{ .name = "latency", .has_arg = no_argument, .flag = NULL, .val = 'y'},
{ .name = "proc", .has_arg = no_argument, .flag = NULL, .val = 'o'},
{ .name = "human", .has_arg = no_argument, .flag = NULL, .val = 'm'},
+ { .name = "no-rounding", .has_arg = no_argument, .flag = NULL, .val = 'n'},
{ },
};
@@ -538,7 +564,8 @@ int cmd_freq_info(int argc, char **argv)
int output_param = 0;
do {
- ret = getopt_long(argc, argv, "oefwldpgrasmyb", info_opts, NULL);
+ ret = getopt_long(argc, argv, "oefwldpgrasmybn", info_opts,
+ NULL);
switch (ret) {
case '?':
output_param = '?';
@@ -575,6 +602,9 @@ int cmd_freq_info(int argc, char **argv)
}
human = 1;
break;
+ case 'n':
+ no_rounding = 1;
+ break;
default:
fprintf(stderr, "invalid or unknown argument\n");
return EXIT_FAILURE;