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

dpcpu_init should have also passed in the calculated cpuid, not the
devicetree ID.

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

Allow the kernel to boot on a CPU where the devicetree has numbered it with
a non-zero ID. To do this we increment the cpuid of any CPUs with a smaller
devicetree ID by one to stop them conflicting with the boot CPU.

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

Move the call to intr_pic_init_secondary to the same place as in the
non-intrng case.

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

Add support for intrng to arm64. As the GICv3 drivers will need to be
updated, and until further testing can be done, this is disabled for now.

It is expected arm64 will switch to this interface, and the old interface
will be removed before 11.0 is released.

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

Reduce the diff for when we switch to intrng. The IPI interrupts will be
split out to multiple handlers.

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

Rename COUNT_IPI to INTR_IPI_COUNT to reduce the diff with intrng.

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

Implement single stepping on arm64. We need to set the single step bits in
the processor and debug state registers. A flag has been added to the pcb
to tell us when to enable single stepping for a given thread.

Reviewed by: kib
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D4730

Decode and print the ID_AA64* registers on boot. These registers hold
information on what the core supports. In most cases these will be
identical across most CPUs in the SoC, however there may be the case where,
with a big.LITTLE setup they may differ. In this case we print the
decoded data on all CPUs.

Reviewed by: kib
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D4725

Make the arm64_cpu driver quiet as it adds no new information.
Only report the register used to start each cpu in bootverbose.

Sponsored by: ABT Systems Ltd

Remove apostrophe from AP's for consistency (arm64 mp_machdep)

Release memory for CPUs that fail to init on ARM64

cpu_init_fdt will now release memory allocated for structures
serving CPUs that have failed to init.

Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3297

Remove redundant mp_naps from ARM64 secondary CPU start-up code

The global variable has been only used for CPU startup ordering
which is not needed anyway.

Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3296

Fix KSTACK_PAGES issue when the default value was changed in KERNCONF

If KSTACK_PAGES was changed to anything alse than the default,
the value from param.h was taken instead in some places and
the value from KENRCONF in some others. This resulted in
inconsistency which caused corruption in SMP envorinment.

Ensure all places where KSTACK_PAGES are used the opt_kstack_pages.h
is included.

The file opt_kstack_pages.h could not be included in param.h
because was breaking the toolchain compilation.

Reviewed by: kib
Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3094

Add identify_cpu() to ARM64 init_secondary routine

Identify current CPU. This is necessary to setup
affinity registers and to provide support for
runtime chip identification.

Reviewed by: andrew
Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3095

Fix secondary PIC initialization order

Call arm_init_secondary before any other PIC-related functions
are called. This is necessary for GICv3 where PIC_INIT_SECONDARY
allocates resources needed for all further operations.

Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3066

Add support for SMP. This uses the FDT data to find the CPUs to start on,
and psci to start them. I expect ACPI support to be added later.

This has been tested on qemu with 2 cpus as that is the current value of
MAXCPUS. This is expected to be increased in the future as FreeBSD has
been tested on 48 cores on the Cavium ThunderX hardware.

Partially based on a patch from Robin Randhawa from ARM.

Approved by: ABT Systems Ltd
Relnotes: yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3024