Konstantin Belousov b57a73f8e7 If x86 CPU implementation of the MWAIT instruction reasonably ... interacts with interrupts, query ACPI and use MWAIT for entrance into Cx sleep states. Support C1 "I/O then halt" mode. See Intel' document 302223-007 "Intelб╝ Processor Vendor-Specific ACPI Interface Specification" for description. Move the acpi_cpu_c1() function into x86/cpu_machdep.c and use it instead of inlining "sti; hlt" sequence in several places. In the acpi(4) man page, besides documenting the dev.cpu.N.cx_methods sysctl, correct the names for dev.cpu.N.{cx_usage,cx_lowest,cx_supported} sysctls. Both jkim and avg have some other patches implementing the mwait functionality; this work is unrelated. Linux does not rely on the ACPI to provide correct tables describing Cx modes. Instead, the driver has pre-defined knowledge of the CPU models, it was supplied by Intel. Tested by: pho (previous versions) Sponsored by: The FreeBSD Foundation		2015-05-09 12:28:48 +00:00
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doc	Fix font issues	2015-05-01 11:46:24 +00:00
dtrace	Brief demo script showing the various values that can be read via the new SIFTR statically defined tracepoint (SDT).	2015-04-29 18:07:58 +00:00
examples	Catch up with Clang 3.6.0.	2015-03-17 05:48:45 +00:00
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man	If x86 CPU implementation of the MWAIT instruction reasonably	2015-05-09 12:28:48 +00:00
me
misc	Fix DragonFly 4.0.5 release date.	2015-05-06 01:29:31 +00:00
mk	Fix spelling of INTERNALLIBS	2015-05-08 16:43:01 +00:00
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