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| author | Jung-uk Kim <jkim@FreeBSD.org> | 2008-10-21 00:38:00 +0000 |
|---|---|---|
| committer | Jung-uk Kim <jkim@FreeBSD.org> | 2008-10-21 00:38:00 +0000 |
| commit | 29462bea1e4a3b6f85c6d61a846b3a89d4fbe01f (patch) | |
| tree | 7447b782629647c7d066b2eafea4fc939f49b09e /sys/amd64/include/clock.h | |
| parent | 780f139b5b21166717ab4d63848ed0f6c4c3d0fb (diff) | |
| download | src-29462bea1e4a3b6f85c6d61a846b3a89d4fbe01f.tar.gz src-29462bea1e4a3b6f85c6d61a846b3a89d4fbe01f.zip | |
Turn off CPU frequency change notifiers when the TSC is P-state invariant
or it is forced by setting 'kern.timecounter.invariant_tsc' tunable
to non-zero.
Notes
Notes:
svn path=/head/; revision=184102
Diffstat (limited to 'sys/amd64/include/clock.h')
| -rw-r--r-- | sys/amd64/include/clock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/amd64/include/clock.h b/sys/amd64/include/clock.h index de09de3f1fd4..f8745f9cd558 100644 --- a/sys/amd64/include/clock.h +++ b/sys/amd64/include/clock.h @@ -20,6 +20,7 @@ extern u_int i8254_freq; extern int i8254_max_count; extern uint64_t tsc_freq; extern int tsc_is_broken; +extern int tsc_is_invariant; void i8254_init(void); |