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| author | jhb <jhb@FreeBSD.org> | 2015-04-02 01:02:42 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2015-04-02 01:02:42 +0000 |
| commit | b09b758bf25e41249b9253a3a796713405f28b4d (patch) | |
| tree | 7694f537b30d0bb29bc4821549a8b28e4d2fb4b4 /sys/sys/systm.h | |
| parent | 5fdf8ec7775f40bbf293206a9670387f9b26b1e2 (diff) | |
| download | FreeBSD-src-b09b758bf25e41249b9253a3a796713405f28b4d.zip FreeBSD-src-b09b758bf25e41249b9253a3a796713405f28b4d.tar.gz | |
MFC 276724:
On some Intel CPUs with a P-state but not C-state invariant TSC the TSC
may also halt in C2 and not just C3 (it seems that in some cases the BIOS
advertises its C3 state as a C2 state in _CST). Just play it safe and
disable both C2 and C3 states if a user forces the use of the TSC as the
timecounter on such CPUs.
PR: 192316
Diffstat (limited to 'sys/sys/systm.h')
| -rw-r--r-- | sys/sys/systm.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/sys/systm.h b/sys/sys/systm.h index 006532d..bb0d64f 100644 --- a/sys/sys/systm.h +++ b/sys/sys/systm.h @@ -295,8 +295,9 @@ sbintime_t cpu_idleclock(void); void cpu_activeclock(void); void cpu_new_callout(int cpu, sbintime_t bt, sbintime_t bt_opt); void cpu_et_frequency(struct eventtimer *et, uint64_t newfreq); -extern int cpu_can_deep_sleep; -extern int cpu_disable_deep_sleep; +extern int cpu_deepest_sleep; +extern int cpu_disable_c2_sleep; +extern int cpu_disable_c3_sleep; int cr_cansee(struct ucred *u1, struct ucred *u2); int cr_canseesocket(struct ucred *cred, struct socket *so); |
