diff options
| author | jkim <jkim@FreeBSD.org> | 2011-03-11 00:44:32 +0000 |
|---|---|---|
| committer | jkim <jkim@FreeBSD.org> | 2011-03-11 00:44:32 +0000 |
| commit | 7df55dcdeb4359716cc7b6a3381d2772e1187d62 (patch) | |
| tree | c5a4a6ac9d73738d09f204667eb641e541525a80 /sys/contrib | |
| parent | 8c8d7206ece7a4dc88c61d5910c6724b0137b26a (diff) | |
| download | FreeBSD-src-7df55dcdeb4359716cc7b6a3381d2772e1187d62.zip FreeBSD-src-7df55dcdeb4359716cc7b6a3381d2772e1187d62.tar.gz | |
Add a tunable "machdep.disable_tsc" to turn off TSC. Specifically, it turns
off boot-time CPU frequency calibration, DELAY(9) with TSC, and using TSC as
a CPU ticker. Note tsc_present does not change by this tunable.
Diffstat (limited to 'sys/contrib')
| -rw-r--r-- | sys/contrib/altq/altq/altq_subr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/contrib/altq/altq/altq_subr.c b/sys/contrib/altq/altq/altq_subr.c index 7d2fc77..a58747d 100644 --- a/sys/contrib/altq/altq/altq_subr.c +++ b/sys/contrib/altq/altq/altq_subr.c @@ -78,10 +78,10 @@ #include <machine/clock.h> #endif #if defined(__amd64__) || defined(__i386__) +#include <machine/cpu.h> /* for cpu_feature or tsc_present */ #include <machine/cpufunc.h> /* for pentium tsc */ #if defined(__NetBSD__) || defined(__OpenBSD__) #include <machine/specialreg.h> /* for CPUID_TSC */ -#include <machine/cpu.h> /* for cpu_feature */ #endif #endif /* __amd64 || __i386__ */ @@ -927,7 +927,7 @@ init_machclk_setup(void) #if defined(__amd64__) || defined(__i386__) /* check if TSC is available */ #ifdef __FreeBSD__ - if (tsc_freq == 0) + if (!tsc_present || tsc_freq == 0) #else if ((cpu_feature & CPUID_TSC) == 0) #endif |
