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Diffstat (limited to 'manual/platform.texi')
| -rw-r--r-- | manual/platform.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/manual/platform.texi b/manual/platform.texi index 02b5c554ab..e387ff4cc9 100644 --- a/manual/platform.texi +++ b/manual/platform.texi @@ -26,3 +26,11 @@ different from the processor frequency. More information is available in without requiring assistance from the operating system, so it is very efficient. @end deftypefun + +@deftypefun {uint64_t} __ppc_get_timebase_freq (void) +Read the current frequency at which the Time Base Register is updated. + +This frequency is not related to the processor clock or the bus clock. +It is also possible that this frequency is not constant. More information is +available in @cite{Power ISA 2.06b - Book II - Section 5.2}. +@end deftypefun |