b57a73f8e7
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
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|---|---|---|
| .. | ||
| _align.h | ||
| _inttypes.h | ||
| _limits.h | ||
| _stdint.h | ||
| _types.h | ||
| acpica_machdep.h | ||
| apicreg.h | ||
| apicvar.h | ||
| apm_bios.h | ||
| bus.h | ||
| busdma_impl.h | ||
| dump.h | ||
| elf.h | ||
| endian.h | ||
| fdt.h | ||
| float.h | ||
| fpu.h | ||
| frame.h | ||
| init.h | ||
| legacyvar.h | ||
| mca.h | ||
| mptable.h | ||
| ofw_machdep.h | ||
| pci_cfgreg.h | ||
| psl.h | ||
| ptrace.h | ||
| pvclock.h | ||
| reg.h | ||
| segments.h | ||
| setjmp.h | ||
| sigframe.h | ||
| signal.h | ||
| specialreg.h | ||
| stdarg.h | ||
| sysarch.h | ||
| trap.h | ||
| ucontext.h | ||
| vdso.h | ||
| vmware.h | ||