Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

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

MFC r236991:

Final whitespace trim.

Submitted by: imp
Approved by: marius
Obtained from: Netflix

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Change rman_manage_region() to actually honor the rm_start and rm_end
constraints on the rman and reject attempts to manage a region that is out
of range.
- Fix various places that set rm_end incorrectly (to ~0 or ~0u instead of
~0ul).
- To preserve existing behavior, change rman_init() to set rm_start and
rm_end to allow managing the full range (0 to ~0ul) if they are not set by
the caller when rman_init() is called.

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

Move ARM nexus rman initialization to attach routine.

This fixes a panic, which started to trigger after r209129 cleanup.

Submitted by: Andrew Turner

Improve style.

ARM nexus style(9) improvements.

ARM interrupts improvements.

- Fix nexus_setup_intr() abuse of setting up multiple IRQs in one go. Calling
arm_setup_irqhandler() in loop is bogus, as there's just one cookie given
from the caller and it is overwritten in each iteration so that only the
last handler's cookie value prevails.

- Proper intr masking/unmasking handling: the IRQ source is masked at PIC level
only after the last handler has been removed from the list.

Reviewed by: cognet, imp, sam, stass
Obtained from: Grzegorz Bernacki gjb ! semihalf dot com

Respect RF_SHAREABLE flag in ARM nexus_setup_intr()

Reviewed by: imp
Approved by: cognet (mentor)

o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@

Erm we really want to mask all interrupts in the range, just not the first
one.

Submitted by: ru

Let allow to teardown multiple irqs as well.

Setup multiple interrupts if needed.

When returning a resource that we've allocated with rman_reserve_resource,
go ahead and set the rid for that resource.

Fix multiple abuses of __RMAN_RESOURCE_VISIBLE in the arm code.

Spotted out by: phk

- MFp4: modify slightly the arm intr API, there's arm CPUs with more than 32
interrupts.
- Implement teardown methods where appropriate.

Start all license statements with /*-

Define __RMAN_RESOURCE_VISIBLE where appropriate.

Remove two debugging printf().

On behalf of: cognet

Import FreeBSD/arm kernel bits.
It only supports sa1110 (on simics) right now, but xscale support should come
soon.
Some of the initial work has been provided by :
Stephane Potvin <sepotvin at videotron.ca>
Most of this comes from NetBSD.