- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

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

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

MFtbemd:

Use MACHINE_CPUARCH in preference to MACHINE_ARCH. The former is the
source code location of the machine, the latter the binary output. In
general, we want to use MACHINE_CPUARCH instead of MACHINE_ARCH unless
we're tesitng for a specific target. The isn't even moot for
i386/amd64 where there's momemntum towards a MACHINE_CPUARCH == x86,
although a specific cleanup for that likely would be needed...

The viapm module build had what appear to be some debugging CFLAGS left
around to force the IO port to a fixed address. They were only turned
on in the module build and were present since the original import. This
breaks soft power-off on the Asus A7V since it reprograms the SMBus base
address to a different one than the BIOS expects. A similar issue was
found in the alpm(4) module build.

PR: kern/113986, i386/97468
MFC after: 3 days
Approved by: re

Drivers for AMD-8111 and NVIDIA nForce2/3/4 SMBus 2.0 controllers.

- Add ofw_bus_if.h to SRCS on sparc64 as envctrl.c and pcf_ebus.c depend
on it.
- Sync with sys/conf/files* and build pcf_isa.c only on i386 for now.
- Try to adhere to style.Makefile(5) (sorting, whitespace).

Fix standalone module build for viapm. Note that by default it doesn't
include the ISA bus support even though it probably should.

Finally complete some work on generalizing the PCF8584-based I2C
drivers I started quite some time before.

Retire the old i386-only pcf driver, and activate the new general
driver that has been sitting in the tree already for quite some
time.

Build the i2c modules for sparc64 architectures as well (where I've
been developing all this on).

Hook ichsmb to build.

Make ichsmb loadable.

PR: kern/81912
Submitted by: nork

Kill bogus isa compat opt file.

Most power management devices don't exist on pc98.

Fix the KMOD for the lpbb device.

amdpm was omitted from the build of i2c controllers. Fixed.

Include "../Makefile.inc".

Major rework of the iicbus/smbus framework:

- VIA chipset SMBus controllers added
- alpm driver updated
- Support for dynamic modules added
- bktr FreeBSD smbus updated but not tested
- cleanup