Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r257334, r257336, r257337, r257338, r257341, r257342, r257343, r257370,
r257368, r257416

Hints-only devices should return BUS_PROBE_NOWILDCARD from their probe
methods.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Fix interrupt handling from the APB periperals (ie, UART) - it
also requires an explicit acknowledgement.

Tested:

* AR9344 (DB120) SoC

Approved by: re@ (gjb)

AR9330/AR9331 also needs to ACK the APB interrupt register, same as
AR724x.

This fixes 'stuck interrupt' problems I was having when writing the
uart interrupt code.

Move PMC hook invocation to cpu_intr. The idea is the same as with ast()
call but there is no reason to implement it in assembler.

- Fix logic for detection if further processing of PMC should be performed.
pmc_intr returns one if one of the counters actually triggered the IRQ
- style(9) fixed

- Rename apb_intr to apb_filter since it's a filter handler
- Pass interrupt trapframe for handlers dow the chain
- Add PMC interrupt handler
PMC interrupt is a special case, so we want handle it as soon as possible
with minimum overhead. So we handle it apb filter routine.

- There's no need to overwrite the default device method with the default
one. Interestingly, these are actually the default for quite some time
(bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9)
since r52045) but even recently added device drivers do this unnecessarily.
Discussed with: jhb, marcel
- While at it, use DEVMETHOD_END.
Discussed with: jhb
- Also while at it, use __FBSDID.

The AR724x SoC's require the irq status line to be acked/cleared.

This allows console IO to occur correctly once the kernel is in multi-user
mode.

Submitted by: Luiz Otavio O Souza

bus_add_child: change type of order parameter to u_int

This reflects actual type used to store and compare child device orders.
Change is mostly done via a Coccinelle (soon to be devel/coccinelle)
semantic patch.
Verified by LINT+modules kernel builds.

Followup to: r212213
MFC after: 10 days

Set the svn:eol-style = native and svn:mime-type = text/plain
properties on all files in this tree.

Submitted by: rpaulo@

Place proper svn:keywords tag on all these files. They were created
somehow without them on projects/mips, and that mistake was propigated
over to head.

Submitted by: rpaulo@

Merge from projects/mips to head by hand:

Merge support files for the Atheros AR71xx (and soon AR9xxx)
processors, except files from sys/conf and sys/mips/conf. This work
was done primarily by Olecksandr Tymoshenko and works on the
RouterStation and RouterStation PRO. Other AR71xx-based boards have
been reported as working as well (RouterBoard, for example).

- Add intr counters for APB interrupts

- style(9) fixes
- Get rid of obsolete mask_fn

- Remove garbage debug output

- Handle memory requests on apb level, do not pass them up to
nexus
- Unmask IRQ in bus_intr_setup
- Do not count timer IRQ (IRQ0) as stray

- Revert changes accidentally killed by merge operation

- Remove some garbage output

- Add some debug output
- Do not manage memory, it's not neccessary. Just pass
request up to nexus to map it to KSEG1

- Add apb device. apb is bridge that connects UART, GPIO,
I2S and PCM to main bus
- Connect apb and uart_bus to build