- Print message about cpufreq and timecounter TSC
Approved by: njl MFC after: 1 day
This commit is contained in:
parent
eb2336ddb5
commit
b4130b8ae0
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=156228
@ -222,6 +222,7 @@ cf_set_method(device_t dev, const struct cf_level *level, int priority)
|
||||
struct cf_saved_freq *saved_freq, *curr_freq;
|
||||
struct pcpu *pc;
|
||||
int cpu_id, error, i;
|
||||
static int once;
|
||||
|
||||
sc = device_get_softc(dev);
|
||||
error = 0;
|
||||
@ -233,8 +234,14 @@ cf_set_method(device_t dev, const struct cf_level *level, int priority)
|
||||
* If it is, then return EBUSY and refuse to change the
|
||||
* clock speed.
|
||||
*/
|
||||
if (strcmp(timecounter->tc_name, "TSC") == 0)
|
||||
if (strcmp(timecounter->tc_name, "TSC") == 0) {
|
||||
if (!once) {
|
||||
printf("cpufreq: frequency change with timecounter"
|
||||
" TSC not allowed, see cpufreq(4)\n");
|
||||
once = 1;
|
||||
}
|
||||
return (EBUSY);
|
||||
}
|
||||
|
||||
CF_MTX_LOCK(&sc->lock);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user