sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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

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

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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

Set internal error returns for OF_peer(), OF_child(), and OF_parent() to
zero, matching the IEEE 1275 standard. Since these internal error paths
have never, to my knowledge, been taken, behavior is u

Set internal error returns for OF_peer(), OF_child(), and OF_parent() to
zero, matching the IEEE 1275 standard. Since these internal error paths
have never, to my knowledge, been taken, behavior is unchanged.

Reported by: gonzo
MFC after: 2 weeks

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge svn+ssh://svn.freebsd.org/base/head@214309

Change OF_interpret() to also take an array of cell_t (missed in r209801).

Reviewed by: nwhitehorn

Merge svn+ssh://svn.freebsd.org/base/head@211344

Change the argument type to OF_call_method to take an array of cell_t
instead of unsigned longs to prepare for platforms where they are not
the same.

Merge svn+ssh://svn.freebsd.org/base/head@208879

Prepare and extend OFW layer for FDT support.

o Let OFW_INIT() and OF_init() return status value.

o Provide helper routines for 'compatible' property handling.

o Only compile OF and OFW code, whic

Prepare and extend OFW layer for FDT support.

o Let OFW_INIT() and OF_init() return status value.

o Provide helper routines for 'compatible' property handling.

o Only compile OF and OFW code, which is relevant in FDT scenario.

o Other minor cosmetics

Reviewed by: imp
Sponsored by: The FreeBSD Foundation

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Pull OF_quiesce() out of the MI Open Firmware layer and entirely into
PPC ofw_machdep.c, in recognition of its state as a machine specific hack.

Requested by: marius

On PowerMac11,2 and (presumably) PowerMac12,1, we need to quiesce the
firmware in order to take over control of the SMU. Without doing this,
the firmware background process doing fan control will run

On PowerMac11,2 and (presumably) PowerMac12,1, we need to quiesce the
firmware in order to take over control of the SMU. Without doing this,
the firmware background process doing fan control will run amok as we
take over the system and crash the management chip.

This is limited to these two machines because our kernel is heavily
dependent on firmware accesses, and so quiescing firmware can cause
nasty problems.

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Update to current version of head.

Merge svn+ssh://svn.freebsd.org/base/head@206571

With r205496 in place we should ensure that nargs and nreturns are always
set to sane values as they no longer default to 0, otherwise some OFW
implementation might copy in or out arguments not based

With r205496 in place we should ensure that nargs and nreturns are always
set to sane values as they no longer default to 0, otherwise some OFW
implementation might copy in or out arguments not based on what the actual
function takes but what ever stack garbage nargs and nreturns supply.

Reviewed by: nwhitehorn

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Merge svn+ssh://svn.freebsd.org/base/head@205807

Do not declare the various OFW command buffers static. It does not
appear to be necessary on either sparc64 or powerpc, and is a
concurrency nightmare.

Reviewed by: marius

Merge from head

Merge from head up to r188941 (last revision before the USB stack switch)

- MFC

Fix style.

- Merge from HEAD

strict kobj signatures: some ofw_setprop fixes

propname parameter is const

Reviewed by: imp, current@
Approved by: jhb (mentor)