intrng: Add support for multiple interrupt roots

Different types of interrupts may require using different exception
vectors so this commit adds support multiple interrupt roots to handle
these case

intrng: Add support for multiple interrupt roots

Different types of interrupts may require using different exception
vectors so this commit adds support multiple interrupt roots to handle
these cases. Archs may opt-in to multiple interrupt roots by defining
INTR_ROOT_NUM as the number of roots in their intr.h. Based off
https://reviews.freebsd.org/D40161.

Signed-off-by: Ayrton Munoz <a.munoz3327@gmail.com>
Co-authored-by: Kyle Evans <kevans@FreeBSD.org>
Co-authored-by: Andrew Turner <andrew@FreeBSD.org>
Reviewed-by: imp,mmel,mhorne
Pull-Request: https://github.com/freebsd/freebsd-src/pull/1363

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intrng: Remove irq_root_ipicount and corresponding intr_pic_claim_root arg

The static irq_root_ipicount variable is only ever written to (with the
value passed to irq_root_ipicount), never read. Mor

intrng: Remove irq_root_ipicount and corresponding intr_pic_claim_root arg

The static irq_root_ipicount variable is only ever written to (with the
value passed to irq_root_ipicount), never read. Moreover, the bcm2836
driver, as used by the Raspberry Pi 2B and 3A/B (but not 4, which uses a
GIC-400, though does have the legacy interrupt controller present too)
passes 0 as ipicount, despite implementing IPIs. It's thus inaccurate
and serves no purpose, so should be removed.

Reviewed by: mmel, imp, mhorne
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D35897

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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arm/arm64 broadcom: Remove unused devclass arguments to DRIVER_MODULE.

arm: clean up empty lines in .c and .h files

MFHead @347527

Sponsored by: The FreeBSD Foundation

Move the reporting of spurious interrupts under bootverbose control, because
occasional spurious interrupts are a normal thing on this hardware. Also,
change the name of the cpu-local interrupt cont

Move the reporting of spurious interrupts under bootverbose control, because
occasional spurious interrupts are a normal thing on this hardware. Also,
change the name of the cpu-local interrupt controller driver from local_intc
to lintc, because the name gets built into interrupt names, which have to
fit into a 19-byte field for stats reporting (so this allows 5 more bytes
of the actual interrupt name to be displayed).

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[rpi] Add fdt_pinctrl(4) support to Raspberry Pi GPIO driver

On Raspberry Pi platform GPIO controller also responsible for pins
multiplexing. Pi code predates proper FDT support in FreeBSD so a
lot

[rpi] Add fdt_pinctrl(4) support to Raspberry Pi GPIO driver

On Raspberry Pi platform GPIO controller also responsible for pins
multiplexing. Pi code predates proper FDT support in FreeBSD so a
lot of pinmux info is hardcoded. This patch:

- Implements pinctl methods in bcm2835_gpio
- Converts all devices with ad-hoc pinmux info to proper pin control
mechanisms and adds pinmux info in FreeBSD's custom dts files.
- Adds fdt_pinctrl option to RPI2 and RPI-B kernels
- Adds SPI pinmux config to FreeBSD's customization of GNU DTS.

Reviewed by: imp, manu
Differential Revision: https://reviews.freebsd.org/D14104

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Switch to mainstream DTS for Raspberry Pi-B and Pi-2.
This is first step in attempt to make FreeBSD compatible with all variants of
RPi boards.

Reviewed by: gonzo
MFC after: 3 weeks

sys/arm: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/arm: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge ^/head r308491 through r308841.

Stop including fdt_common.h from the arm code when it's unneeded.

Sponsored by: ABT Systems Ltd

Merge ^/head r308227 through r308490.

Start to remove the old pre-INTRNG code from the arm platforms. These have
all moved to use INTRNG.

Reviewed by: manu, mmel
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freeb

Start to remove the old pre-INTRNG code from the arm platforms. These have
all moved to use INTRNG.

Reviewed by: manu, mmel
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D8469

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Merge ^/head r306906 through r307382.

Make sure intc is attached before interrupt consumers

If pass order is not specified devices are attached in the order they are
defined in dts. Some interrupt consumers may be defined before intc. A

Make sure intc is attached before interrupt consumers

If pass order is not specified devices are attached in the order they are
defined in dts. Some interrupt consumers may be defined before intc. Also
make sure intc interrupt-parent local_intc is attached before intc itself.

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Make intc driver compatible with upstream DTS

- Fix compatibility strings
- Properly decode upstream's two-cell interrupt specs. Our home-made dts
does not have two-cell interrupts so no need to

Make intc driver compatible with upstream DTS

- Fix compatibility strings
- Properly decode upstream's two-cell interrupt specs. Our home-made dts
does not have two-cell interrupts so no need to preserve backward
compatibility

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Return the struct intr_pic pointer from intr_pic_register. This will be
needed in later changes where we may not be able to lock the pic list lock
to perform a lookup, e.g. from within interrupt cont

Return the struct intr_pic pointer from intr_pic_register. This will be
needed in later changes where we may not be able to lock the pic list lock
to perform a lookup, e.g. from within interrupt context.

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

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INTRNG - redefine struct intr_map_data to avoid headers pollution. Each
struct associated with some type defined in enum intr_map_data_type
must have struct intr_map_data on the top of its own defini

INTRNG - redefine struct intr_map_data to avoid headers pollution. Each
struct associated with some type defined in enum intr_map_data_type
must have struct intr_map_data on the top of its own definition now.
When such structs are used, correct type and size must be filled in.

There are three such structs defined in sys/intr.h now. Their
definitions should be moved to corresponding headers by follow-up
commits.

While this change was propagated to all INTRNG like PICs,
pic_map_intr() method implementations were corrected on some places.
For this specific method, it's ensured by a caller that the 'data'
argument passed to this method is never NULL. Also, the return error
values were standardized there.

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MFH

Sponsored by: The FreeBSD Foundation

Rename ARM_INTRNG and MIPS_INTRNG to INTRNG. This will help with machine
independent code that needs to know about INTRNG such as PCI drivers.

Obtained from: ABT Systems Ltd
Sponsored by: The FreeBS

Rename ARM_INTRNG and MIPS_INTRNG to INTRNG. This will help with machine
independent code that needs to know about INTRNG such as PCI drivers.

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

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MFH

Sponsored by: The FreeBSD Foundation

Rework bcm283x interrupt controller for INTRNG and enable it
on RPI-B by default.

Reviewed by: gonzo
Differential Revision: https://reviews.freebsd.org/D5809

Merge ^/head r296007 through r296368.