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In order to allow comparing trace timestamps between different systems or virtual machines on s390, add a s390-tod trace clock. This clock just uses the returned TOD clock value from stcke directly. Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
13 lines
293 B
C
13 lines
293 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/trace_clock.h>
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#include <linux/timex.h>
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/*
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* trace_clock_s390_tod(): trace clock based on the s390 TOD clock
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*
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* Unlike the other clocks, this is not in nanoseconds.
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*/
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u64 notrace trace_clock_s390_tod(void)
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{
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return get_tod_clock();
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}
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