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linux
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bb93ce4b150dde79f58e34103cbd1fe829796649
/
.
/
tools
/
perf
/
arch
/
x86
/
util
/
tsc.c
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// SPDX-License-Identifier: GPL-2.0
#include
<linux/types.h>
#include
"../../../util/tsc.h"
u64 rdtsc
(
void
)
{
unsigned
int
low
,
high
;
asm
volatile
(
"rdtsc"
:
"=a"
(
low
),
"=d"
(
high
));
return
low
|
((
u64
)
high
)
<<
32
;
}