squash! x86/tsc: Add option to force frequency recalibration with HW timer
[ paulmck: Wordsmith Kconfig help text. ]
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 2907d5a..89a0261 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6388,10 +6388,10 @@
in situations with strict latency requirements (where
interruptions from clocksource watchdog are not
acceptable).
- [x86] recalibrate: force to do frequency recalibration
- with a HW timer (HPET or PM timer) for systems whose
- TSC frequency comes from HW or FW through MSR or CPUID(0x15),
- and warn if the difference is more than 500 ppm.
+ [x86] recalibrate: force recalibration against a HW timer
+ (HPET or PM timer) on systems whose TSC frequency was
+ obtained from HW or FW using either an MSR or CPUID(0x15).
+ Warn if the difference is more than 500 ppm.
tsc_early_khz= [X86] Skip early TSC calibration and use the given
value instead. Useful when the early TSC frequency discovery
