sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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powerpc_nvram: Fix a bug in the adler32 checksum.

The Adler32 digest consists of two 16-bit words whose values are
calculated modulo 65521 (largest prime < 2^16). To avoid two division
instructions

powerpc_nvram: Fix a bug in the adler32 checksum.

The Adler32 digest consists of two 16-bit words whose values are
calculated modulo 65521 (largest prime < 2^16). To avoid two division
instructions per byte, this version copies an optimization found in
zlib which defers the modulus until close to the point that the
intermediate sums can overflow 2^32. (zlib uses NMAX == 5552 for
this, this version uses 5000)

The bug is that in the deferred modulus case, the modulus was
only applied to the high word (and twice at that) but not to
the low word. The fix is to apply it to both words.

Reviewed by: jhibbits
Reported by: Miod Vallat <miod@openbsd.org>
Differential Revision: https://reviews.freebsd.org/D36798

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pmap_unmapdev/bios: Accept a pointer instead of a vm_offset_t.

This matches the return type of pmap_mapdev/bios.

Reviewed by: kib, markj
Sponsored by: DARPA
Differential Revision: https://reviews.f

pmap_unmapdev/bios: Accept a pointer instead of a vm_offset_t.

This matches the return type of pmap_mapdev/bios.

Reviewed by: kib, markj
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D36548

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powermac_nvram: Remove unused devclass argument to DRIVER_MODULE.

powermac_nvram: Actually return EBUSY on error from open.

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

[PowerPC] De-giant powermac_nvram, update documentation

* Remove the giant lock requirement from powermac_nvram.
* Update manual pages to reflect current state.

Reviewed by: bcr (manpages), jhibbit

[PowerPC] De-giant powermac_nvram, update documentation

* Remove the giant lock requirement from powermac_nvram.
* Update manual pages to reflect current state.

Reviewed by: bcr (manpages), jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D24812

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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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MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

MFH: tracking commit

Sponsored by: The FreeBSD Foundation

Merge head up to r262222 (last merge was incomplete).

Move Open Firmware device root on PowerPC, ARM, and MIPS systems to
a sub-node of nexus (ofwbus) rather than direct attach under nexus. This
fixes FDT on x86 and will make coexistence with ACPI on AR

Move Open Firmware device root on PowerPC, ARM, and MIPS systems to
a sub-node of nexus (ofwbus) rather than direct attach under nexus. This
fixes FDT on x86 and will make coexistence with ACPI on ARM systems easier.
SPARC is unchanged.

Reviewed by: imp, ian

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IFC @ r238370

IFC @ r236291.
Diff reductions to the enclosure driver made in r235911.

Merge head r233826 through r236168.

"nvram,flash" may not be the first in the compatible list property of the
nvram ofw node, so check all strings in the list.

Approved by: nwhitehorn (mentor)
MFC after: 3 days

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

Add support for the Sharp/Micron flash chips to powermac_mvram(4).
Tested on PowerMac G4 AGP.

Reviewed by: nwhitehorn

Merge from head

Merge from HEAD

Use si_drv1 instead of dev2unit() in powermac_nvram.

Reviewed by: nwhitehorn

- Merge from HEAD