Replace calls to bus_generic_attach with bus_attach_children

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D47675

dev/psci: Make SMCCC into a real driver

This will be used by other drivers that manage SMCCC firmware services
to use as an attachment point.

Sponsored by: Arm Ltd
Differential Revision: https://re

dev/psci: Make SMCCC into a real driver

This will be used by other drivers that manage SMCCC firmware services
to use as an attachment point.

Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D46988

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dev/psci: Check all compat strings

When searching for the PSCI FDT node we only check a few compat strings.
Use the existing compat_data array to check all strings the driver may
attach to.

Sponsor

dev/psci: Check all compat strings

When searching for the PSCI FDT node we only check a few compat strings.
Use the existing compat_data array to check all strings the driver may
attach to.

Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D44913

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psci: split off psci_reboot from psci_shutdown

Priority of psci_reboot set so that it is run after shutdown_panic is
executed. This is to provide uniform experience with other platforms.

MFC after

psci: split off psci_reboot from psci_shutdown

Priority of psci_reboot set so that it is run after shutdown_panic is
executed. This is to provide uniform experience with other platforms.

MFC after: 3 weeks

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psci: Add FDT node status check

Consider the PSCI missing if the FDT node status says it is not okay.

Reviewed by: andrew
Obtained from: Juniper Networks, Inc.
Differential Revision: https://review

psci: Add FDT node status check

Consider the PSCI missing if the FDT node status says it is not okay.

Reviewed by: andrew
Obtained from: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D43920

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

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

Only call SMCCC init on arm64

We don't build the smccc code on arm so don't call into it there.

Make SMCCC usable by device drivers

To allow device drivers to call into SMCCC we need to initialise it
earlier. As it depends on PSCI, and that is detected via ACPI or FDT
move the call to smccc_in

Make SMCCC usable by device drivers

To allow device drivers to call into SMCCC we need to initialise it
earlier. As it depends on PSCI, and that is detected via ACPI or FDT
move the call to smccc_init to the PSCI driver.

Add a function for drivers to read the smccc version, or 0 if smccc
is not present.

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psci: set psci_present as early as possible

psci_attach is way too late to provide the intended semantics for
psci_present. psci calls can be made immediately after psci_init(),
called way earlier

psci: set psci_present as early as possible

psci_attach is way too late to provide the intended semantics for
psci_present. psci calls can be made immediately after psci_init(),
called way earlier at SI_SUB_CPU + SI_ORDER_FIRST, and we need it to
be valid as early as we can possibly call a psci function.

This fixes booting RPi3+4 with the in-review spintable patch;
rpi3-psci-monitor patches the FDT to add a PSCI node, but it doesn't
patch each cpus' enable-method. Because of this, we would stall the
boot while enabling CPU 1 as we saw a valid looking enable-method and
"no" functional PSCI and attempted to use the spintable rather than
simply not starting secondary APs.

Fixes: 2218070b2c3c32 ("psci: finish psci_present implementation")
Reported by: karels

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psci: Remove unused devclass arguments to DRIVER_MODULE.

psci: finish psci_present implementation

This was already declared in psci.h, but it was never defined/set. Do
this now, so we can use it to decide if enable-method in /cpus FDT nodes
should be ins

psci: finish psci_present implementation

This was already declared in psci.h, but it was never defined/set. Do
this now, so we can use it to decide if enable-method in /cpus FDT nodes
should be inspected later on. While we're here, convert it to a
boolean.

Reviewed by: andrew (slightly earlier version)
Differential Revision: https://reviews.freebsd.org/D34553

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

Merge ^/head r352105 through r352307.

Add generic arm/arm64 secure-monitor SMCCC interface and switch
PSCI code to use it.

This interface will also be used by Intel Stratix 10 platform.

This was not tested on arm due to lack of PSCI-en

Add generic arm/arm64 secure-monitor SMCCC interface and switch
PSCI code to use it.

This interface will also be used by Intel Stratix 10 platform.

This was not tested on arm due to lack of PSCI-enabled arm hardware
lying around.

Reviewed by: andrew
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D21439

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MFHead @345353

PSCI: Don't take missing implementation of psci get_version() as fatal.
Minimalistic PSCI implementation in U-Boot doesn't implement get_version()
method for some SoC. In this case, use PSCI version

PSCI: Don't take missing implementation of psci get_version() as fatal.
Minimalistic PSCI implementation in U-Boot doesn't implement get_version()
method for some SoC. In this case, use PSCI version declared by 'psci' node
in DT as fallback.

MFC after: 2 weeks

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psci: Add \n at the end of printf

Add a \n at the end of the printf if no PSCI function was found otherwise
it mess up the console log.

Move psci_call to a header file so we can use it in other files to
communicate with the firmware.

Sponsored by: DARPA, AFRL

Add a handler for the PSCI_FEATURES function. This needs PSCI 1.0, so
check for this, returning an error if the version is too old.

Sponsored by: DARPA, AFRL

Find and cache the PSCI version on driver attach.

Sponsored by: DARPA, AFRL

Rework PSCI so it only searches for the call function once.

This is in preperation for supporting newer smccc functions that also use
the same call method.

Reviewed by: manu
Differential Revision:

Rework PSCI so it only searches for the call function once.

This is in preperation for supporting newer smccc functions that also use
the same call method.

Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D15745

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Merge ^/head r327624 through r327885.

Add a function to find the PSCI version the firmware implements from
outside the PSCI driver.

MFC after: 1 week
Sponsored by: DARPA, AFRL

Merge ^/head r323559 through r325504.

MFhead@r324837

While here, diff reduce some of the changes in sys/boot by moving
MK_COVERAGE=no to sys/boot/Makefile.inc .