arm64: Add a new SOC_ROCKCHIP option

A lot of drivers are shared between all rockchip SoCs, each time we add
suppot for a new SoC we need to add the options in the files.arm64 lines.
Add a new optio

arm64: Add a new SOC_ROCKCHIP option

A lot of drivers are shared between all rockchip SoCs, each time we add
suppot for a new SoC we need to add the options in the files.arm64 lines.
Add a new option SOC_ROCKCHIP that will help simplify this file.

Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D48286

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Import the kernel parts of bhyve/arm64

To support virtual machines on arm64 add the vmm code. This is based on
earlier work by Mihai Carabas and Alexandru Elisei at University
Politehnica of Buchare

Import the kernel parts of bhyve/arm64

To support virtual machines on arm64 add the vmm code. This is based on
earlier work by Mihai Carabas and Alexandru Elisei at University
Politehnica of Bucharest, with further work by myself and Mark Johnston.

All AArch64 CPUs should work, however only the GICv3 interrupt
controller is supported. There is initial support to allow the GICv2
to be supported in the future. Only pure Armv8.0 virtualisation is
supported, the Virtualization Host Extensions are not currently used.

With a separate userspace patch and U-Boot port FreeBSD guests are able
to boot to multiuser mode, and the hypervisor can be tested with the
kvm unit tests. Linux partially boots, but hangs before entering
userspace. Other operating systems are untested.

Sponsored by: Arm Ltd
Sponsored by: Innovate UK
Sponsored by: The FreeBSD Foundation
Sponsored by: University Politehnica of Bucharest
Differential Revision: https://reviews.freebsd.org/D37428

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arm64: start defining a std.apple configuration

The M1 uses FDT, and has bge to start with. Add a SOC_* option for
the first SoC we'll be supporting.

IOMMU is added commented out because it does h

arm64: start defining a std.apple configuration

The M1 uses FDT, and has bge to start with. Add a SOC_* option for
the first SoC we'll be supporting.

IOMMU is added commented out because it does have it, but IOMMU is not
well-tested on aarch64. An initial version of the DART driver will be
upstreamed that just puts the DARTs that support bypass mode into bypass
mode -- we'll be missing some functionality, but we at least still end
up with some USB ports.

Reviewed by: karels, manu
Input from: jrtc27 (IOMMU)
Differential Revision: https://reviews.freebsd.org/D39823

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sys: Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

arm64: emulate swp/swpb instructions

Add another undefined instruction handler for compat32 and watch out for
SWP/SWPB instructions.

SWP/SWPB were deprecated in ARMv6 and declared obsolete in ARMv7

arm64: emulate swp/swpb instructions

Add another undefined instruction handler for compat32 and watch out for
SWP/SWPB instructions.

SWP/SWPB were deprecated in ARMv6 and declared obsolete in ARMv7, but
this implementation is motivated by some proprietary software that still
uses SWP/SWPB. Because it's deprecated, emulation is pushed back behind
a sysctl that defaults to OFF in GENERIC so that it doesn't potentially
adversely affect package builds; it's unknown whether software may test
for a functional swp/swpb instruction with the desire of using it later,
so we err on the side of caution to ensure we don't end up with swp/swpb
use in freebsd/arm packages (which are built on aarch64).

The EMUL_SWP config option may be used to enable emulation by default in
environments where emulation is desired and won't really be turned off.

Reviewed by: andrew, mmel (both earlier version)
Sponsored by: Stormshield
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D39667

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Add Rockchip RK3568 SoC

Attach its clock drivers and rk817 pmic driver to the build.

conf: Document why we have ARM64 and RISCV options

These are needed for the 'cpu ARM64' and 'cpu RISCV' options in these
architecture's config files. cpu lines are non-optional in config(8), so
we m

conf: Document why we have ARM64 and RISCV options

These are needed for the 'cpu ARM64' and 'cpu RISCV' options in these
architecture's config files. cpu lines are non-optional in config(8), so
we must define them here. There's no other use for them in the tree.

Sponsored by: Netflix

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Per-thread stack canary on arm64

With the update to llvm 13 we are able to tell the compiler it can find
the SSP canary relative to the register that holds the userspace stack
pointer. As this is un

Per-thread stack canary on arm64

With the update to llvm 13 we are able to tell the compiler it can find
the SSP canary relative to the register that holds the userspace stack
pointer. As this is unused in most of the kernel it can be used here
to point to a per-thread SSP canary.

As the kernel could be built with an old toolchain, e.g. when upgrading
from 13, add a warning that the options was enabled but the compiler
doesn't support it to both the build and kernel boot.

Discussed with: emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33079

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Use L2 blocks when in the identity map

This reduces the memory mapped to be closer to the minimal memory
needed to enable the MMU.

Reviewed by: mmel
Sponsored by: Innovate UK
Differential Revision:

Use L2 blocks when in the identity map

This reduces the memory mapped to be closer to the minimal memory
needed to enable the MMU.

Reviewed by: mmel
Sponsored by: Innovate UK
Differential Revision:://reviews.freebsd.org/D27765

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arm64: Add a SOC_BRCM_NS2 option

Only compile files needed for this platform if the option is enabled in the
kernel config file.
Add the option to GENERIC.

MFC after: 3 days

ARM64: Port FreeBSD to Nvidia Jetson TX1 and Nano.

Add support for the Tergra210 SoC and its companion PMIC MAX77620.

Add i.MX 8M Quad support

- Add CCM driver and clocks implementations for i.MX 8M
- Add GPC driver for iMX8
- Add clock tree for i.MX 8M Quad
- Add clocks support and new compat strings (where requir

Add i.MX 8M Quad support

- Add CCM driver and clocks implementations for i.MX 8M
- Add GPC driver for iMX8
- Add clock tree for i.MX 8M Quad
- Add clocks support and new compat strings (where required) for existing i.MX 6 UART, I2C, and GPIO drivers
- Enable aarch64-compatible drivers form i.MX 6 in arm64 GENERIC kernel config
- Add dtb/imx8 kernel module with DTBs for Nitrogen8M and iMX8MQ EVK

With this patch both Nitrogen8M and iMX8MQ EVK boot with NFS root up to multiuser login prompt

Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D25274

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Add LS1046A clockgen driver.

Driver provides probe and attach functions for LS1046A clockgen and passes
configuration information to QorIQ clockgen class. It may be used as
a reference implementatio

Add LS1046A clockgen driver.

Driver provides probe and attach functions for LS1046A clockgen and passes
configuration information to QorIQ clockgen class. It may be used as
a reference implementation for different QorIQ clockgen devices.

Submitted by: Dawid Gorecki <dgr@semihalf.com>
Reviewed by: mmel, manu
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential Revision: https://reviews.freebsd.org/D24352

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Merge ^/head r357408 through r357661.

Dynamically select LSE-based atomic(9)s on arm64.

Once all CPUs are online, determine if they all support LSE atomics and
set lse_supported to indicate this. For now the atomic(9)
implementations a

Dynamically select LSE-based atomic(9)s on arm64.

Once all CPUs are online, determine if they all support LSE atomics and
set lse_supported to indicate this. For now the atomic(9)
implementations are still always inlined, though it would be preferable
to create out-of-line functions to avoid text bloat. This was not done
here since big.little systems exist in which some CPUs implement LSE
while others do not, and ifunc resolution must occur well before this
scenario can be detected. It does seem unlikely that FreeBSD will
ever run on such platforms, however, so converting atomic(9) to use
ifuncs is probably a good next step.

Add a LSE_ATOMICS arm64 kernel configuration option to unconditionally
select LSE-based atomic(9) implementations when the target system is
known.

Reviewed by: andrew, kib
MFC after: 1 month
Sponsored by: The FreeBSD Foundation, Amazon (hardware)
Differential Revision: https://reviews.freebsd.org/D23325

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Add support for booting kernel directly from U-Boot using booti command.

In some cases, like is locked bootstrap or device's inability to boot from
removable media, we cannot use standard boot seque

Add support for booting kernel directly from U-Boot using booti command.

In some cases, like is locked bootstrap or device's inability to boot from
removable media, we cannot use standard boot sequence and is necessary to
boot kernel directly from U-Boot.

Discussed with: jhibbits
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D13861

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revert r354714 "Boot arm64 kernel using booti command from U-boot."

After discussing with mmel@, it was clear this is insufficient to address
all the needs. mmel@ will commit his original patch, fr

revert r354714 "Boot arm64 kernel using booti command from U-boot."

After discussing with mmel@, it was clear this is insufficient to address
all the needs. mmel@ will commit his original patch, from
https://reviews.freebsd.org/D13861, and the additions needed from r354714
will be made afterward.

Requested by: mmel
Sponsored by: Juniper Networks, Inc.

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Boot arm64 kernel using booti command from U-boot.

Summary:
Boot arm64 kernel using booti command from U-boot. booti can relocate initrd
image into higher ram addresses, therefore align the initrd l

Boot arm64 kernel using booti command from U-boot.

Summary:
Boot arm64 kernel using booti command from U-boot. booti can relocate initrd
image into higher ram addresses, therefore align the initrd load address to 1GiB
and create VA = PA map for it. Create L2 pagetable entries to copy the initrd
image into KVA.
(parts of the code in https://reviews.freebsd.org/D13861 was referred and used
as appropriate)

Submitted by: Siddharth Tuli <siddharthtuli_gmail.com>
Reviewed by: manu
Sponsored by: Juniper Networks, Inc
Differential Revision: https://reviews.freebsd.org/D22255

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arm64: add SOC_BRCM_BCM2838, build it in GENERIC

BCM2838/BCM2711 is the Raspberry Pi 4, which we will soon be able to boot
on once some ports bits are worked out.

arm64: allwinner: Add Allwinner H6 Support

This adds support for H6 SoC.
Add a CCU driver for H6 that support all PLLs and most of the clocks
that we are intersted in for now (i2c, mmc, usb, etc ...

arm64: allwinner: Add Allwinner H6 Support

This adds support for H6 SoC.
Add a CCU driver for H6 that support all PLLs and most of the clocks
that we are intersted in for now (i2c, mmc, usb, etc ...)

MFC after: 1 month

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Merge ^/head r352105 through r352307.

Add support for Intel Stratix 10 platform.

Intel Stratix 10 SoC includes a quad-core arm64 cluster and FPGA fabric.

This adds support for reconfiguring FPGA.

Accessing FPGA core of this SoC requir

Add support for Intel Stratix 10 platform.

Intel Stratix 10 SoC includes a quad-core arm64 cluster and FPGA fabric.

This adds support for reconfiguring FPGA.

Accessing FPGA core of this SoC require the level of privilege EL3,
while kernel runs in EL1 (lower) level of privilege.

This provides an Intel service layer interface that uses SMCCC to pass
queries to the secure-monitor (EL3).

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D21454

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arm64: Add new SoC type MARVELL_8K

Sponsored by: Rubicon Communications, LLC ("Netgate")

Merge ^/head r340918 through r341763.

arm64/rockchip: add RK3399 support

Add CRU (Clock and Reset Unit) driver for RK3399.
Add support in rk_pinctrl driver.

Submitted by: Greg V <greg@unrelenting.technology> (Original version)
Differe

arm64/rockchip: add RK3399 support

Add CRU (Clock and Reset Unit) driver for RK3399.
Add support in rk_pinctrl driver.

Submitted by: Greg V <greg@unrelenting.technology> (Original version)
Differential Revision: https://reviews.freebsd.org/D16732

MFC after: 1 month

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