MFC r330349 and r330362:

Allow pause_sbt() to catch signals during sleep by passing C_CATCH flag.
Define pause_sig() function macro helper similarly to other kernel functions
which catch signals. Update outdated function description.

Document pause_sig(9) and update prototypes for existing pause(9) and
pause_sbt(9) functions.

Discussed with: kib@
Suggested by: cem@
Sponsored by: Mellanox Technologies

MFC r316549,r316550,r316551,r316554:

r316549:

Add sys/types.h #include to EXAMPLE to provide a complete functional
standalone example program

r316550:

sbuf(9): convert SYNOPSIS section from .Fn entries to .Fo/.Fa/.Fc entries

This shortens the column count on many lines considerably.

While here, add "(void)" to sbuf_new_auto(3) for consistency with style(9)
recommendations.

r316551:

sbuf(9): clarify kernel-only APIs

- move sbuf_bcopyin(9) and sbuf_copyin(9) near sbuf_new_for_sysctl(9), as
all three functions are kernel-only APIs.
- add #ifdef _KERNEL around sbuf_*copyin and sbuf_new_for_sysctl(9) to
make it visually clear that they are kernel-only APIs.

r316554:

sbuf(9): add MLINKS for sbuf_{clear,get,set}_flags(9)

These functions were added in r279992.

MFC r313436,r313437,r313438,r314587,r315687:

r313436:

Clarify #includes for hexdump(3) vs sbuf_hexdump(9)

hexdump(3) only requires libutil.h, whereas sbuf_hexdump(9) requires
sys/types.h (for ssize_t) and sys/sbuf.h

r313437:

Create link from hexdump(3) to sbuf_hexdump(9) as the manpage describes
sbuf_hexdump(9)'s behavior

r313438:

Clean up trailing and leading whitespace for variables to make it
consistent with the rest of the file and style.Makefile(9) a bit
more

r314587:

Correct MLINKS for sbuf_hexdump(9)

sbuf_hexdump(9) should be linked to sbuf(9), not hexdump(3). Another
review will be posted to deduplicate the sbuf_hexdump reference in
in hexdump(3) or at the very least make the information less duplicative.

r315687:

Document sbuf_hexdump(9) in just sbuf(9)

- Remove duplicate references to sbuf_hexdump(9) from hexdump(3).
sbuf_hexdump(9) already pointed back to hexdump(3) for implementation
details.
- Refer to sbuf_hexdump(9) instead of sbuf(9) for completeness

MFC 305502: Reset PCI pass through devices via PCI-e FLR during VM start/end.

Add routines to trigger a function level reset (FLR) of a PCI-express
device via the PCI-express device control register. This also includes
support routines to wait for pending transactions to complete as well
as calculating the maximum completion timeout permitted by a device.

Change the ppt(4) driver to reset pass through devices before attaching
to a VM during startup and before detaching from a VM during shutdown.

Sponsored by: Chelsio Communications

MFC r303425:
Add callout_when(9).

MFC r303919:
Fix indentation.

MFC r303211:
Implement mtx_trylock_spin(9).

MFC 300253: Remove dangling references to rman_await_resource().

This function was removed when RF_TIMESHARE was removed a couple of years
ago.

MFC r293346:
Provide yet another KPI for cdev creation, make_dev_s(9).

MFC 292669:
Add accessor methods to fetch the BAR holding the MSI-X table and PBA.

While here, explicitly note the requirement that the BAR(s) must be
allocated prior to calling pci_alloc_msix().

MFH: r291954

Add an MLINK for m_collapse.

PR: 204205
Submitted by: avos

MFC r290428:

remove \, it confuses things.

MFC 290414,290415:
Additional PCI helper functions.

290414:
Add helper routines for PCI device drivers to read, write, and modify
PCI-Express capability registers (that is, PCI config registers in the
standard PCI config space belonging to the PCI-Express capability
register set).

Note that all of the current PCI-e registers are either 16 or 32-bits,
so only widths of 2 or 4 bytes are supported.

290415:
Add a new helper function for PCI devices to locate the upstream
PCI-express root port of a given PCI device.

MFC r288295,r288298:

r288295:

Posthumously remove all references to MFREE(9)

The macro was removed in r90227

Sponsored by: EMC / Isilon Storage Division

r288298:

Remove MLINKS to more non-existent mbuf(9) macros

Sponsored by: EMC / Isilon Storage Division

MFC r288271:

Document bus_get_resource(9).

MFC r286966:

Add link for rw_unlock(9) to rwlock(9).

MFC r281915:
Make vpanic() externally visible.

MFC r281916:
Fix DTrace's panic() action.

MFC r282574:

Remove references to Giant in namei(9). This was removed in r241896.

MFC r278135,r278202:

r278135 (by amdmi3):

- Remove more files when MK_USB == no

Reviewed by: ngie
Approved by: ngie
Differential Revision: D1600

r278202:

Clean up more usb related files when MK_USB == no when dealing with
manpages, libraries, and binaries

Sponsored by: EMC / Isilon Storage Division

MFC r275045: callout(9): add sbt flavors of callout_schedule

Not applicable to earlier releases.

Merge the fueword(9) and casueword(9). In particular,

MFC r273783:
Add fueword(9) and casueword(9) functions.
MFC note: ia64 is handled like arm, with NO_FUEWORD define.

MFC r273784:
Replace some calls to fuword() by fueword() with proper error checking.

MFC r273785:
Convert kern_umtx.c to use fueword() and casueword().
MFC note: the sys__umtx_lock and sys__umtx_unlock syscalls are not
converted, they are removed from HEAD, and not used. The do_sem2*()
family is not yet merged to stable/10, corresponding chunk will be
merged after do_sem2* are committed.

MFC r273788 (by jkim):
Actually install casuword(9) to fix build.

MFC r273911:
Add type qualifier volatile to the base (userspace) address argument
of fuword(9) and suword(9).

MFC r271992

Reflect the chanages in sleepqueue.h and subr_sleepqueue.c
- Priority argument is introduced to sleepq_*wait* in r177085
- sleepq_calc_signal_retval is removed from implementation
- sleepq_catch_signals is internal now

MFC r272475

- Bump .Dd

Approved by: kevlo

MFC 271761:

Add missing link to TIMEOUT_TASK_INIT(9).

Sponsored by: The FreeBSD Foundation

MFC 271759:

Add missing links to taskqueue(9).

Sponsored by: The FreeBSD Foundation

Fix a leak of the wired pages when unwiring of the PROT_NONE-mapped
wired region. Rework the handling of unwire to do the it in batch,
both at pmap and object level.

All commits below are by alc.

MFC r268327:
Introduce pmap_unwire().

MFC r268591:
Implement pmap_unwire() for powerpc.

MFC r268776:
Implement pmap_unwire() for arm.

MFC r268806:
pmap_unwire(9) man page.

MFC r269134:
When unwiring a region of an address space, do not assume that the
underlying physical pages are mapped by the pmap. This fixes a leak
of the wired pages on the unwiring of the region mapped with no access
allowed.

MFC r269339:
In the implementation of the new function pmap_unwire(), the call to
MOEA64_PVO_TO_PTE() must be performed before any changes are made to the
PVO. Otherwise, MOEA64_PVO_TO_PTE() will panic.

MFC r269365:
Correct a long-standing problem in moea{,64}_pvo_enter() that was revealed
by the combination of r268591 and r269134: When we attempt to add the
wired attribute to an existing mapping, moea{,64}_pvo_enter() do nothing.
(They only set the wired attribute on newly created mappings.)

MFC r269433:
Handle wiring failures in vm_map_wire() with the new functions
pmap_unwire() and vm_object_unwire().
Retire vm_fault_{un,}wire(), since they are no longer used.

MFC r269438:
Rewrite a loop in vm_map_wire() so that gcc doesn't think that the variable
"rv" is uninitialized.

MFC r269485:
Retire pmap_change_wiring().

Reviewed by: alc

MFC r269160:
Remove man page for non-existent VOPs.

MFC r269240 (by pluknet):
Add VOP_GETVOBJECT.9 to obsolete files, un-xref.

MFC r267854:
Add fpu_kern.9 man page to the install.

MFC r265285,265320:

Documented the pget(9) system kernel interface.

MFC r258713,262062: add taskqueue_drain_all

MFC r260581: Add sglist_append_bio(9) to append a struct bio's data to
a sglist

MFC r286966:

Add link for rw_unlock(9) to rwlock(9).

MFC r281915:
Make vpanic() externally visible.

MFC r281916:
Fix DTrace's panic() action.

MFC r282574:

Remove references to Giant in namei(9). This was removed in r241896.

MFC r278135,r278202:

r278135 (by amdmi3):

- Remove more files when MK_USB == no

Reviewed by: ngie
Approved by: ngie
Differential Revision: D1600

r278202:

Clean up more usb related files when MK_USB == no when dealing with
manpages, libraries, and binaries

Sponsored by: EMC / Isilon Storage Division

MFC r275045: callout(9): add sbt flavors of callout_schedule

Not applicable to earlier releases.

Merge the fueword(9) and casueword(9). In particular,

MFC r273783:
Add fueword(9) and casueword(9) functions.
MFC note: ia64 is handled like arm, with NO_FUEWORD define.

MFC r273784:
Replace some calls to fuword() by fueword() with proper error checking.

MFC r273785:
Convert kern_umtx.c to use fueword() and casueword().
MFC note: the sys__umtx_lock and sys__umtx_unlock syscalls are not
converted, they are removed from HEAD, and not used. The do_sem2*()
family is not yet merged to stable/10, corresponding chunk will be
merged after do_sem2* are committed.

MFC r273788 (by jkim):
Actually install casuword(9) to fix build.

MFC r273911:
Add type qualifier volatile to the base (userspace) address argument
of fuword(9) and suword(9).

MFC r271992

Reflect the chanages in sleepqueue.h and subr_sleepqueue.c
- Priority argument is introduced to sleepq_*wait* in r177085
- sleepq_calc_signal_retval is removed from implementation
- sleepq_catch_signals is internal now

MFC r272475

- Bump .Dd

Approved by: kevlo

MFC 271761:

Add missing link to TIMEOUT_TASK_INIT(9).

Sponsored by: The FreeBSD Foundation

MFC 271759:

Add missing links to taskqueue(9).

Sponsored by: The FreeBSD Foundation

Fix a leak of the wired pages when unwiring of the PROT_NONE-mapped
wired region. Rework the handling of unwire to do the it in batch,
both at pmap and object level.

All commits below are by alc.

MFC r268327:
Introduce pmap_unwire().

MFC r268591:
Implement pmap_unwire() for powerpc.

MFC r268776:
Implement pmap_unwire() for arm.

MFC r268806:
pmap_unwire(9) man page.

MFC r269134:
When unwiring a region of an address space, do not assume that the
underlying physical pages are mapped by the pmap. This fixes a leak
of the wired pages on the unwiring of the region mapped with no access
allowed.

MFC r269339:
In the implementation of the new function pmap_unwire(), the call to
MOEA64_PVO_TO_PTE() must be performed before any changes are made to the
PVO. Otherwise, MOEA64_PVO_TO_PTE() will panic.

MFC r269365:
Correct a long-standing problem in moea{,64}_pvo_enter() that was revealed
by the combination of r268591 and r269134: When we attempt to add the
wired attribute to an existing mapping, moea{,64}_pvo_enter() do nothing.
(They only set the wired attribute on newly created mappings.)

MFC r269433:
Handle wiring failures in vm_map_wire() with the new functions
pmap_unwire() and vm_object_unwire().
Retire vm_fault_{un,}wire(), since they are no longer used.

MFC r269438:
Rewrite a loop in vm_map_wire() so that gcc doesn't think that the variable
"rv" is uninitialized.

MFC r269485:
Retire pmap_change_wiring().

Reviewed by: alc

MFC r269160:
Remove man page for non-existent VOPs.

MFC r269240 (by pluknet):
Add VOP_GETVOBJECT.9 to obsolete files, un-xref.

MFC r267854:
Add fpu_kern.9 man page to the install.

MFC r265285,265320:

Documented the pget(9) system kernel interface.

MFC r258713,262062: add taskqueue_drain_all

MFC r260581: Add sglist_append_bio(9) to append a struct bio's data to
a sglist