Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

ithread(9): update functions to current day

The public KPI is now intr_event_**,
- Convert existing documented functions to their equivalents.
- Fix up the function arguments
- Fix up the possibl

ithread(9): update functions to current day

The public KPI is now intr_event_**,
- Convert existing documented functions to their equivalents.
- Fix up the function arguments
- Fix up the possible error return values for each
- Remove ithread_schedule() completely
- Rename man page to intr_event(9)
- Update cross-references

Future changes will update the descriptive text for these functions.

PR: 100803
Based on work by: trhodes
Reviewed by: jhb
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33475

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swi(9): remove BUGS section

Most of these globals have been removed, save for clk_intr_event. This
one is appropriate to keep in sys/interrupt.h, despite the fact that it
has only one consumer.

Bum

swi(9): remove BUGS section

Most of these globals have been removed, save for clk_intr_event. This
one is appropriate to keep in sys/interrupt.h, despite the fact that it
has only one consumer.

Bump .Dd for this and previous changes.

Reviewed by: markj
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36939

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Downgrade tty_intr_event from a global

It can be static within uart_tty.c. It is an open question whether there
remains any real benefit to having uart instances share a swi thread.

Reviewed by: im

Downgrade tty_intr_event from a global

It can be static within uart_tty.c. It is an open question whether there
remains any real benefit to having uart instances share a swi thread.

Reviewed by: imp, markj, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36938

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swi(9): clean up description of clk_intr_event

From what I can tell, setdelayed() was removed so long ago that its
mention is more likely to be confusing than helpful. We now have a
manpage for hard

swi(9): clean up description of clk_intr_event

From what I can tell, setdelayed() was removed so long ago that its
mention is more likely to be confusing than helpful. We now have a
manpage for hardclock(9), so reference that.

Reviewed by: markj
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36937

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Remove last references of vm_ih

The only remaining user was busdma, and so it was simplified.

Reviewed by: markj, jhb
MFC after: 1 week
Fixes: 254e4e5b77d7 ("Simplify swi for bus_dma")
Sponsored b

Remove last references of vm_ih

The only remaining user was busdma, and so it was simplified.

Reviewed by: markj, jhb
MFC after: 1 week
Fixes: 254e4e5b77d7 ("Simplify swi for bus_dma")
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36936

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MFH

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

Allow swi_sched() to be called from NMI context.

For purposes of handling hardware error reported via NMIs I need a way to
escape NMI context, being too restrictive to do something significant.

To

Allow swi_sched() to be called from NMI context.

For purposes of handling hardware error reported via NMIs I need a way to
escape NMI context, being too restrictive to do something significant.

To do it this change introduces new swi_sched() flag SWI_FROMNMI, making
it careful about used KPIs. On platforms allowing IPI sending from NMI
context (x86 for now) it immediately wakes clk_intr_event via new IPI_SWI,
otherwise it works just like SWI_DELAY. To handle the delayed SWIs this
patch calls clk_intr_event on every hardclock() tick.

MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D25754

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MFHead@r345275

MFhead@r344996

Drop "All rights reserved" from my copyright statements.

Reviewed by: rgrimes
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D19485

MFC

Merge head r233826 through r234834.

IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

- Update the rest of struct ithd references.
- net_ih and softclock_ih cookies have gone away.

MFC after: 1 week

Document swi_remove(9).

Reviewed by: jhb
MFC after: 1 week

Update the swi_add prototype after struct ithd was split up into
struct intr_event and struct intr_thread.

PR: docs/166864
Reviewed by: jhb (older version)
MFC after: 1 week

Retire the INTR_FAST flag as it was obsoleted by the introduction of the
filter argument to bus_setup_intr().

Make an argument name in the synopsis match that in the text. Correct
an mdoc error.

Tabs here upset my automatic checker, so replaced them with spaces.

mdoc(7): Use the new feature of the .In macro.

mdoc(7) police: scheduled sweep.

Approved by: re

SWI_SWITCH and SWI_NOSWITCH were OBE a long time ago.

Typo: s/conjuction/conjunction/

mdoc(7) police: Use the new .In macro for #include statements.