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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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powerpc powernv: Remove unused devclass arguments to DRIVER_MODULE.

powerpc/xive: Remove POWER9 DD1 IRQ bits

The OPAL_XIVE_*_VIA_IFW flags are used only for POWER9 DD1, which we
don't support.

Noticed while perusing Linux and skiboot git logs.

[PowerPC64LE] Get XIVE up and running.

More endian conversion.

* Install TCEs correctly (i.e. in big endian)

* Convert to big endian and back when setting up queue pages and IRQs.

Sponsored by: T

[PowerPC64LE] Get XIVE up and running.

More endian conversion.

* Install TCEs correctly (i.e. in big endian)

* Convert to big endian and back when setting up queue pages and IRQs.

Sponsored by: Tag1 Consulting, Inc.

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[PowerPC64] Fix xive order calculation in qemu TCG

When emulating a single thread system for testing reasons, mp_maxid can
be 0. This trips up our math for calculating the order.

Account for this t

[PowerPC64] Fix xive order calculation in qemu TCG

When emulating a single thread system for testing reasons, mp_maxid can
be 0. This trips up our math for calculating the order.

Account for this to fix xive attachment when emulating a single-thread
core on qemu powernv (a configuration that doesn't exist in the real world.)

Sponsored by: Tag1 Consulting, Inc.

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

MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

[PowerPC64] Fix invalid OPAL call in xive_bind().

This fixes spurious "XIVE[ IC 00 ] ISN 1 lead to invalid IVE !" messages
generated by OPAL when running with the debug level cranked up.

Discussed

[PowerPC64] Fix invalid OPAL call in xive_bind().

This fixes spurious "XIVE[ IC 00 ] ISN 1 lead to invalid IVE !" messages
generated by OPAL when running with the debug level cranked up.

Discussed with jhibbits.

Sponsored by: Tag1 Consulting, Inc.

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[PowerPC] XIVE dispatch tweaks

* Only read the DPCPU pointer once per xive_dispatch call.
* Optimize HE decoding for the common cases.

Reported by: jhibbits (in irc)
Reviewed by: jhibbits
Spons

[PowerPC] XIVE dispatch tweaks

* Only read the DPCPU pointer once per xive_dispatch call.
* Optimize HE decoding for the common cases.

Reported by: jhibbits (in irc)
Reviewed by: jhibbits
Sponsored by: Tag1 Consulting, Inc.
Differential Revision: https://reviews.freebsd.org/D25545

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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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Merge ^/head r343571 through r343711.

powerpc/powernv: Add a driver for the POWER9 XIVE interrupt controller

The XIVE (External Interrupt Virtualization Engine) is a new interrupt
controller present in IBM's POWER9 processor. It's a ve

powerpc/powernv: Add a driver for the POWER9 XIVE interrupt controller

The XIVE (External Interrupt Virtualization Engine) is a new interrupt
controller present in IBM's POWER9 processor. It's a very powerful,
very complex device using queues and shared memory to improve interrupt
dispatch performance in a virtualized environment.

This yields a ~10% performance improvment over the XICS emulation mode,
measured in both buildworld, and 'dd' from nvme to /dev/null.

Currently, this only supports native access.

MFC after: 1 month

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