gitweb.dragonflybsd.org Git - dragonfly.git/commit

author	Sepherosa Ziehau <sephe@dragonflybsd.org>
	Tue, 14 Jan 2014 13:22:58 +0000 (21:22 +0800)
committer	Sepherosa Ziehau <sephe@dragonflybsd.org>
	Tue, 14 Jan 2014 13:27:35 +0000 (21:27 +0800)
commit	1f9bc2562ca6a4c983333aa7f1d5741044407681
tree	ea66021b0724e6606b77143c6f2b3129a83d4c05	tree \| snapshot
parent	a85227c2439acaf38d25e7fba41fc23508a6dba9	commit \| diff

x86_64: Detect CPU specific C-state through CPUID(5)

The information is exposed through machdep.mwait sysctl nodes

This could be used to:
- Validate cpu_mwait_halt
- Validate cpu_mwait_spin
- Prepare to turn on C1/C2/C3 native support in ACPI _OSC evalution

DragonFly Project Source

RSS Atom

sys/cpu/x86_64/include/specialreg.h		diff \| blob \| blame \| history
sys/platform/pc64/include/md_var.h		diff \| blob \| blame \| history
sys/platform/pc64/x86_64/identcpu.c		diff \| blob \| blame \| history
sys/platform/pc64/x86_64/initcpu.c		diff \| blob \| blame \| history
sys/platform/pc64/x86_64/machdep.c		diff \| blob \| blame \| history