Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

INTRNG - change the way how an interrupt mapping data are provided
to the framework in OFW (FDT) case.

This is a follow-up to r301451.

Differential Revision: https://reviews.freebsd.org/D6634

Add a pcib interface for use by interrupt controllers that need to
translate the pci rid to a controller ID. The translation could be based
on the 'msi-map' OFW property, a similar ACPI option, or hard-coded for
hardware lacking the above options.

Reviewed by: wma
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation

Teach ofw_bus_parse_xref_list_alloc to be able to return the length of the parsed list.

Currently, there is no easy way to know in advance how many entries a list parsed by
ofw_bus_parse_xref_list_alloc() in sys/dev/ofw/ofw_bus_subr.c has.

This patch:

* teaches the existing function about handling idx == -1 and returning how big
the set is; then renames it as _internal;
* create a new function that asserts idx != -1, so the old API is maintained;
* add a new function that returns just the list length.

Submitted by: Stanislav Galabov <sgalabov@gmail.com>
Differential Revision: https://reviews.freebsd.org/D5043

OFW: Fix ofw_bus_string_list_to_array() function.
Originally committed version was unfinished and didn't work at all,
because I took it from the wrong WIP branch by mistake.

Approved by: kib (mentor)

Make using the #address-cells property on the interrupt parent in device
tree parsing opt-out rather than opt-in. All FDT-based systems as well as
PowerPC systems with real Open Firmware use the CHRP-derived binding that
includes it, which makes SPARC the odd man out here. Making it opt-out
avoids astonishment on new platform bring up.

Support the variant of the interrupt-map property where the parent bus has
the #address-cells property set. For this we need to read more data before
the parent interrupt description.

this is only enabled on arm64 for now as it's not quite compliant with the
ePAPR spec. We should use a default of 2 where the #address-cells property
is missing, however this will need further testing across architectures.

Obtained from: ABT Systems Ltd
Sponsored by: SoftIron Inc
Differential Revision: https://reviews.freebsd.org/D4518

OFW: Add helper functions for parsing xref based lists.
By using this functions, we can parse a list of tuples, each of them holds
xref and variable number of values.
This kind of list is used in DT for clocks, gpios, resets ...

Discussed with: ian, nwhitehorn
Approved by: kib (mentor)
Differential Revision: https://reviews.freebsd.org/D4316

OFW: Move code for searching interrupt parent into separate function.
It can be used by interrupt controller drivers.

Approved by: kib (mentor)

OF_getencprop_alloc shouldn't be used to get string value. If string
length + 1 is not divisible by 4 this function returns NULL property
value. Otherwise - string with each 4 letters inverted

Fix an infinite loop when a node doesn't have an interrupt-parent property.

Submitted by: Aleksey Kuleshov <rndfax@yandex.ru>
Differential Revision: https://reviews.freebsd.org/D3041

Also accept "ok" to enable a device, some vendor device trees use this when
they mean "okay"

Add ofw_bus_find_child_by_phandle, a helper routine to find a device_t
child matchig a given phandle_t.

Differential Revision: https://reviews.freebsd.org/D2871

Rename fdt_find_child to ofw_bus_find_child. There is nothing FDT-specific
in this function.

Suggested by: andrew@

Provide the number of interrupt resources added to the list
by using extra argument, so caller will know that.

Use the correct node wen reading the compatible property.

Add ofw_bus_find_compatible to find a compatible ofw node. This will be
used on ARM to help find the correct node to use to start secondary CPUs
as this happens before device enumeration.

Introduce ofw_bus_reg_to_rl() to replace part of common bus code

Instead of reusing the same reg parsing code, create one, common function
that puts reg contents to the resource list. Address cells and size cells
are passed rather than acquired here so that any bus can have different
default values.

Obtained from: Semihalf
Reviewed by: andrew, ian, nwhitehorn
Sponsored by: The FreeBSD Foundation

Restore use of ofw_bus_intr_to_rl() in the pseries vdevice driver after fixing
ofw_bus_intr_to_rl() to match the spec for unspecified interrupt-parent
properties.

Replace multiple nearly-identical copies of code to walk through an FDT
node's interrupts=<...> property creating resource list entries with a
single common implementation. This change makes ofw_bus_intr_to_rl() the
one true copy of that code and removes the copies of it from other places.

This also adds handling of the interrupts-extended property, which allows
specifying multiple interrupts for a node where each interrupt can have a
separate interrupt-parent. The bindings for this state that the property
cells contain an xref phandle to the interrupt parent followed by whatever
interrupt info that parent normally expects. This leads to having a
variable number of icells per interrupt in the property. For example you
could have <&intc1 1 &intc2 26 9 0 &intc3 9 4>.

Differential Revision: https://reviews.freebsd.org/D803

Rename OF_xref_phandle() to OF_node_from_xref() and add a new function
that provides the inverse translation, OF_xref_from_node().

Discussed with: nwhitehorn

Add a set of helpers (ofw_bus_get_status() and ofw_bus_status_okay()) to
process "status" properties of OF nodes.

I've avoided adding new KOBJ methods here so that we don't have to modify
every ofw_bus in the tree. Since 100% of implementations of ofw_bus use
only ofw_bus_gen_*(), it might be worth garbage-collecting the other
methods as well.

Simplify the ofw_bus_lookup_imap() API slightly: make it allocate maskbuf
internally instead of requiring the caller to allocate it.

Configure interrupt sense based on device tree information. This extends
the OF interrupt map API to return sense information to the caller and
the PowerPC Open Firmware PCI base driver to use it to program the PIC.

Add a helper routine to search for a compat string in a table that
associates compat strings with arbitrary values that mean something to
the driver. This is handy for drivers that support several variations
of similar hardware and need to know which one matched.

Reviewed by: imp, jmg, nwhitehorn

Make all Open Firmware internal interfaces endian-safe by using the new
OF_getencprop() API. This removes one explicit endianness conversion in
ofw_iicbus.c.

Allow the OFW interrupt mapping code to work with PCI devices not enumerated
by Open Firmware, as in the case of FDT.

Add a kernel interface (OF_xref_phandle()) for systems where phandles
used as cross-references in the device tree and phandles as used by the
Open Firmware client interface are in different namespaces. This include
IBM pSeries hardware as well as FDT systems. FDT certainly abuses
ihandles for this purpose and should be modified to use this API
eventually. This changes no behavior on systems where FreeBSD already
worked.

Reviewed by: marius
Approved by: re (kib)
MFC after: 2 weeks

- Add OF_hasprop() and ofw_bus_has_prop(). These can be used to check
existence of the property.

- Fix ofw_bus_is_compatible{,_strict}() to prevent substring match in the
compatible string.

Reviewed by: raj

Make ofw_bus_get_node() consistently return -1 when there is no associated
OF node, instead of a random mixture of 0 and -1. Update all checks for 0
to check for -1 instead.

MFC after: 4 weeks

Provide for multiple, cascaded PICs on PowerPC systems, and extend the
OFW interrupt map interface to also return the device's interrupt parent.

MFC after: 8.1-RELEASE

Prepare and extend OFW layer for FDT support.

o Let OFW_INIT() and OF_init() return status value.

o Provide helper routines for 'compatible' property handling.

o Only compile OF and OFW code, which is relevant in FDT scenario.

o Other minor cosmetics

Reviewed by: imp
Sponsored by: The FreeBSD Foundation

Fix style.

Fix the OFW interrupt map parser to use its own idea of the number of interrupt
cells in the map, instead of using a value passed to it and then panicing if it
disagrees. This fixes interrupt map parsing for PCI bridges on some Apple
Uninorth PCI controllers.

Reported by: marcel
Tested on: G4 iBook, Sun Ultra 5

Adapt parts of the sparc64 Open Firmware bus enumeration code (in particular,
the code for parsing interrupt maps) to PowerPC and reflect their new MI
status by moving them to the shared dev/ofw directory.

This commit also modifies the OFW PCI enumeration procedure on PowerPC to
allow the bus to find non-firmware-enumerated devices that Apple likes to add,
and adds some useful Open Firmware properties (compat and name) to the pnpinfo
string of children on OFW SBus, EBus, PCI, and MacIO links. Because of the
change to PCI enumeration on PowerPC, X has started working again on PPC
machines with Grackle hostbridges.

Reviewed by: marius
Obtained from: sparc64

- Add a new method ofw_bus_default_get_devinfo() that allows to retrieve
a newly introduced struct ofw_bus_devinfo which can hold the OFW info
of a device recallable via the ofw_bus KOBJ interface. Introduce a set
of functions ofw_bus_gen_get_*() which use ofw_bus_default_get_devinfo()
to provide generic subroutines for implementing the rest of the ofw_bus
KOBJ interface in a bus driver.
This is inspired by bus_get_resource_list() and bus_generic_rl_*_resource()
and allows to reduce code duplication in bus drivers as they only have
to provide an ofw_bus_default_get_devinfo() implementation in order to
provide the ofw_bus KOBJ interface via ofw_bus_gen_get_*().
- While here add a comment to ofw_bus_if.m describing the intention of
the ofw_bus KOBJ interface.

Reviewed by: marcel