diff options
Diffstat (limited to 'sys/contrib')
| -rw-r--r-- | sys/contrib/altq/altq/altq_subr.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/contrib/altq/altq/altq_subr.c b/sys/contrib/altq/altq/altq_subr.c index 0b4d22d..fb6b91c 100644 --- a/sys/contrib/altq/altq/altq_subr.c +++ b/sys/contrib/altq/altq/altq_subr.c @@ -74,6 +74,9 @@ #if __FreeBSD__ < 3 #include "opt_cpu.h" /* for FreeBSD-2.2.8 to get i586_ctr_freq */ #endif +#include <sys/bus.h> +#include <sys/cpu.h> +#include <sys/eventhandler.h> #include <machine/clock.h> #endif #if defined(__i386__) @@ -898,6 +901,22 @@ extern u_int64_t cycles_per_usec; /* alpha cpu clock frequency */ extern u_int64_t cpu_tsc_freq; #endif /* __alpha__ */ +#if (__FreeBSD_version >= 700035) +/* Update TSC freq with the value indicated by the caller. */ +static void +tsc_freq_changed(void *arg, const struct cf_level *level, int status) +{ + /* If there was an error during the transition, don't do anything. */ + if (status != 0) + return; + + /* Total setting for this level gives the new frequency in MHz. */ + machclk_freq = level->total_set.freq * 1000000; +} +EVENTHANDLER_DEFINE(cpufreq_post_change, tsc_freq_changed, NULL, + EVENTHANDLER_PRI_ANY); +#endif /* __FreeBSD_version >= 700035 */ + void init_machclk(void) { |
