d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Explicitly initialize TSC frequency. To calibrate TSC frequency, we use

Browse Source 
DELAY(9) and it may use TSC in turn if TSC frequency is non-zero.

MFC after:	3 days
This commit is contained in:
Jung-uk Kim 2010-12-03 21:54:10 +00:00
parent e391a266ed
commit b14fe63392
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sys/amd64/amd64/tsc.c
View File

@ -46,7 +46,7 @@ __FBSDID("$FreeBSD$");
#include "cpufreq_if.h"
uint64_t tsc_freq;
uint64_t tsc_freq = 0;
int tsc_is_broken;
int tsc_is_invariant;
static eventhandler_tag tsc_levels_tag, tsc_pre_tag, tsc_post_tag;

2
sys/i386/i386/tsc.c
View File

@ -46,7 +46,7 @@ __FBSDID("$FreeBSD$");
#include "cpufreq_if.h"
uint64_t tsc_freq;
uint64_t tsc_freq = 0;
int tsc_is_broken;
int tsc_is_invariant;
u_int tsc_present;