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x64: Add MicroSleep

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MicroSleep allows the processor to pause for a "short" amount of time (in the microsecond range). This is useful for spin-waiting that does not require nanosecond precision.
This uses the new TPAUSE instruction introduced on Intel's newest processors as part of the waitpkg instructions. For CPUs that do not support waitpkg instructions, this is equivalent to yield().

Co-Authored-By: liamwhite <liamwhite@users.noreply.github.com>
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Morph 2023-03-21 21:28:38 -04:00
parent d2cfe25b07
commit 27c33ab73f
3 changed files with 84 additions and 0 deletions
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src/common/CMakeLists.txt
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@ -160,6 +160,8 @@ if(ARCHITECTURE_x86_64)
PRIVATE
x64/cpu_detect.cpp
x64/cpu_detect.h
x64/cpu_wait.cpp
x64/cpu_wait.h
x64/native_clock.cpp
x64/native_clock.h
x64/xbyak_abi.h