sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Add support for _CR3 critical standby (S3) threshold.

Along with _PSV, _HOT, and _CRT, ACPI supports the _CR3 threshold
which specifies a temperature above which a system should transition
to the S3

Add support for _CR3 critical standby (S3) threshold.

Along with _PSV, _HOT, and _CRT, ACPI supports the _CR3 threshold
which specifies a temperature above which a system should transition
to the S3 standby state.

On FreeBSD, this is more useful than _HOT, which specifies the S4
transition threshold temperature (since FreeBSD does not generally
support the S4 state), or, in many cases, _CRT, since after
transitioning to S3 the system can cool and then be resumed.

Reviewed by: jhb, bcr (manpages)
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D35980

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acpi_thermal: Fix a potential stack buffer overflow.

While here, fix a typo as well.

Reviewed by: jhb
Differential Revision: https://reviews.freebsd.org/D36495

acpi: Remove unused devclass arguments to DRIVER_MODULE.

acpi_tz: Lookup devclass by name when needed.

Cache the value in a local variable in the worker thread.

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D34992

acpica: Remove CTLFLAG_NEEDGIANT from most sysctls.

MFC after: 2 weeks

acpica: clean up empty lines in .c and .h files

Merge ^/head r358269 through r358399.

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly mark

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by: kib (mentor, blanket)
Commented by: kib, gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D23718

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MFHead @348740

Sponsored by: The FreeBSD Foundation

Extract eventfilter declarations to sys/_eventfilter.h

This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces hea

Extract eventfilter declarations to sys/_eventfilter.h

This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.

EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).

As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.

LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).

No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.

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MFH @ r337607, in preparation for boarding

Merge ^/head r336870 through r337285, and resolve conflicts.

Make timespecadd(3) and friends public

The timespecadd(3) family of macros were imported from NetBSD back in
r35029. However, they were initially guarded by #ifdef _KERNEL. In the
meantime, we have

Make timespecadd(3) and friends public

The timespecadd(3) family of macros were imported from NetBSD back in
r35029. However, they were initially guarded by #ifdef _KERNEL. In the
meantime, we have grown at least 28 syscalls that use timespecs in some
way, leading many programs both inside and outside of the base system to
redefine those macros. It's better just to make the definitions public.

Our kernel currently defines two-argument versions of timespecadd and
timespecsub. NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define
three-argument versions. Solaris also defines a three-argument version, but
only in its kernel. This revision changes our definition to match the
common three-argument version.

Bump _FreeBSD_version due to the breaking KPI change.

Discussed with: cem, jilles, ian, bde
Differential Revision: https://reviews.freebsd.org/D14725

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Merge ^/head r309817 through r310168.

Attach a "thermal_zone" label to the ACPI thermal zone sysctls.

In order to make Prometheus do graphing/alerting on thermal sensors in a
generic fashion, we should attach the name of the thermal zon

Attach a "thermal_zone" label to the ACPI thermal zone sysctls.

In order to make Prometheus do graphing/alerting on thermal sensors in a
generic fashion, we should attach the name of the thermal zone device as
a label. That way there is only a single metric for the temperature of a
thermal zone, with its name attached as a label.

Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D8775

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Fix a minor leak in ACPI thermal

Introduced in r301518.

Reported by: Coverity
CID: 1356266
Sponsored by: EMC / Isilon Storage Division

Defer the creation of ACPI thermal kthreads to a startup sysinit.

The SYSINIT runs at SI_SUB_KICK_SCHEDULER after the scheduler is fully
initialized and timers are working. This fixes booting in th

Defer the creation of ACPI thermal kthreads to a startup sysinit.

The SYSINIT runs at SI_SUB_KICK_SCHEDULER after the scheduler is fully
initialized and timers are working. This fixes booting in the
EARLY_AP_STARTUP case.

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Fix the deciKelvin to Celsius conversion in kernel.

After r285994, sysctl(8) was fixed to use 273.15 instead of 273.20 as 0C
reference and as result, the temperature read in sysctl(8) now exibits a

Fix the deciKelvin to Celsius conversion in kernel.

After r285994, sysctl(8) was fixed to use 273.15 instead of 273.20 as 0C
reference and as result, the temperature read in sysctl(8) now exibits a
+0.1C difference.

This commit fix the kernel references to match the reference value used in
sysctl(8) after r285994.

Sponsored by: Rubicon Communications (Netgate)

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Fix intmax_t to uintptr_t casting on 32-bit platforms. Found by GCC.

Submitted by: bde

Merge head r233826 through r256722.

IFC @256277

Approved by: ken (mentor)

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Merge from head

IFC @ r255209