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| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-01-09 20:39:19 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-01-10 02:42:34 +0000 |
| commit | 45974de8fb23710873417f1d2ca513761da6cacc (patch) | |
| tree | 88f6cf0b63ddfde079dabf699e889e85b96d0173 /sys/amd64 | |
| parent | 826fc3cc3d59c1d0af4caf3a08888e168bfe22b2 (diff) | |
| download | src-45974de8fb23710873417f1d2ca513761da6cacc.tar.gz src-45974de8fb23710873417f1d2ca513761da6cacc.zip | |
x86: Add rdtscp32() into cpufunc.h.
Suggested by: markj
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D27986
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/include/cpufunc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sys/amd64/include/cpufunc.h b/sys/amd64/include/cpufunc.h index 94e9c15b5117..2bf2339c7d6e 100644 --- a/sys/amd64/include/cpufunc.h +++ b/sys/amd64/include/cpufunc.h @@ -412,6 +412,15 @@ rdtsc32(void) return (rv); } +static __inline uint32_t +rdtscp32(void) +{ + uint32_t rv; + + __asm __volatile("rdtscp" : "=a" (rv) : : "ecx", "edx"); + return (rv); +} + static __inline void wbinvd(void) { |