x86/tsc: Be consistent about use_tsc_delay()

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Currently loops_per_jiffy is set in tsc_early_init(), but then don't
switch to delay_tsc, with the result that delay_loop is used with
loops_per_jiffy set for delay_tsc.

Then in (late) tsc_init() lpj_fine is set (which is mostly unused) and
after which use_tsc_delay() is finally called.

Move both loops_per_jiffy and use_tsc_delay() into
tsc_enable_sched_clock() which is called the moment tsc_khz is
determined, be it early or late. Keeping the lot consistent.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220304152135.914397165@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Peter Zijlstra 2022-03-04 16:19:54 +01:00 • committed by Greg Kroah-Hartman

parent 977b948140

commit 69f8aeab43

1 changed files with 3 additions and 3 deletions

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arch/x86/kernel/tsc.c

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