Add the beginnings of a GENERIC_V5 kernel that targets armv5 boards and
uses FDT.

In this first iteration some support is added for OLinuXino boards.

Thanks to Yuri Honegger for doing the vast majority of the work.

Add Amlogic Meson I2C.

Add a port of the FreeBSD driver for the VMware PV SCSI controller found
in VMware's ESXi product.

Tested on ESXi/Arm such that an installation from ISO succeeds and boots.

branches: 1.226.2;
s/Cryptograhic/Cryptographic/ in comment.

Add disabled entries for USB-C on RK3399.

evbarm/GENERIC64: Enable vio9p(4).

Tested under qemu.

PR kern/59211: vio9p(4): missing from various GENERICs and MAKEDEVs

virtio(4): Consolidate kernel configs.

No functional change intended.

Leave `# XXX ?' comments where I don't know why the driver in
question is excluded. (Typical reason is that PAGE_SIZE is not 4096
but I didn't investigate -- if you do investigate, please either
update the comment if you determine a reason, or enable the driver if
you don't.)

PR kern/59211: vio9p(4): missing from various GENERICs and MAKEDEVs

arm64: Add support for Snapdragon X1E battery and charger sensors.

This is a port of a set of drivers from OpenBSD, adapted to use ACPI
instead of FDT bindings. These drivers are required to boot firmware on
the application DSP which is required to read sensors. This is an impressive
collection of work on the OpenBSD side -- big thank you to Patrick for writing
this code and his help with this porting effort.

Firmware is signed and as a result may be board specific. The qcompas(4)
driver looks for firmware files in qcompas/<subsystem> where <subsystem> is
the string returned by the _SUB method on the ADSP device node. For example,
on Lenovo ThinkPad T14s Gen 6 the subsystem ID is "233817AA".

The files "qcadsp8380.mbn" and "adsp_dtbs.elf" must be placed in
this directory to read sensor data. These files can be obtained by
downloading the appropriate OEM drivers for Windows.

When everything is online, the sensors are reported by sysmon_envsys and
the charger creates a sysmon_pswitch of type PSWITCH_TYPE_ACADAPTER. The
goal is to match the acpiacad(4) and acpibat(4) behaviour as much as possible.

XXX Firmware loading sometimes fails, still looking into this. When this
happens, sensors are not registered.

[battery]
design voltage: 0.000 V
voltage: 12.980 V
design cap: 58.000 Wh
last full cap: 59.810 Wh
charge: 59.740 2.000% 8.998% Wh (99.88%)
charge rate: N/A
discharge rate: N/A
charging: FALSE
charge state: NORMAL
discharge cycles: 4 0 0 0 0 none
temperature: 30.230 degC
[charger]
connected: TRUE

enable ikbd(4)

arm64: Add qcomiic, qcomgpio, ihidev, ims

amd64, evbarm, i386: Add acpivmgenid(4) to GENERIC.

PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork

viocon(4): Add to various kernel configs.

Add example EARLYCONS entry for Ampere Altra/Altra Max

branches: 1.216.2;
Add some "simpler" PCI audio devices to aarch64's GENERIC64

These serve as alternatives to hdaudio. Tested in QEMU.

port-arm/58194: Resurrect vmt(4) from bitrot

On this architecture vmt(4) used to search for a node "/hypervisor" in the
FDT and probed the VMware hypervisor call only when the node was
found. However, things appear to have changed and VMware no longer provides
the FDT node.

Since vmt(4) doesn't actually need to read anything from FDT, and the
hypervisor call logically resides in virtual CPUs themselves, it would be
better to attach it directly to cpu, just like how it's probed on x86.

aarch64/GENERIC64: Add ixl(4)

Works just fine for little-endian on LX2K with UEFI firmware.

Not tested for big-endian yet; attach fails on ROCKPro64 due to
host controller problem.

OK yamaguchi@

igc(4): Added to kernel config files for tested platforms

I.e., aarch64, amd64, and evbppc/DHT, at the moment.

Please feel free to add to other config files, and report us back
if you find problems :)

evbarm: Enable HEARTBEAT option in GENERIC and GENERIC64 kernels.

DesignWare watchdog ACPI attach glue

Restore the ability to have EARLYCONS work for the QEMU virt after
SOC_VIRT got removed.

add siisata(4). been running for ages on a rockpro64.

Adjust _all_ cinclude of *.local files

- Ensure always at end
- Use tab rather than spaces
- Add consistent comment
"Pull in optional local configuration - always at end"

The only functional change is that a local file which tried to
override an existing setting (eg with "no foo") would have failed
in some cases before, but now will work

PR port-arm/57044 allow vcaudio on RPI 4 to attach when booting with EFI

branches: 1.206.2;
No need for SOC_VIRT, the default arm platform will take care of things.

add eqos(4) for RK3588

Add initial support for RK3588 SoC (CRU and IOMUX)

config cosmetics (avoid a warning from config(1):
no need to repeat COMPAT_NETBSD32, we get that from GENERIC.common
already (where it is used for aout support, but here it means elf32
support). Add a comment explaining what goes on.

aarch64: Add tpm driver to GENERIC64 kernel.

Add a driver for the Apple RTKit based System Management Controller
found on M1 SoCs. From OpenBSD.

Add a driver for the Apple M1 I2C controller. From OpenBSD.

Add support for Apple silicon NVME. Ported from OpenBSD.

Add support for the mailbox that provides a communications channel with
additional cores integrated in Apple Silicon.

Also, add an implementation for the protocol to communicate with
coprocessors running firmware based Apple's RTKit OS.

From OpenBSD.

Add a driver for the Apple GPIO controller found in Apple silicon.

Derived from the OpenBSD driver.

Add support for the power domain controller found in Apple silicon
machines.

hdaudio: Obsolete HDAUDIO_ENABLE_DISPLAYPORT and HDAUDIO_ENABLE_HDMI

Enable display port and HDMI devices by default rather than making this
a compile time option.

add support Hardware updates to Access flag and Dirty state (FEAT_HAFDBS)

- The DBM bit of the PTE is now used to determine if it is writable, and
the AF bit is treated entirely as a reference bit. A valid PTE is always
treated as readable. There can be no valid PTE that is not readable.
- LX_BLKPAG_OS_{READ,WRITE} are used only for debugging purposes,
and has been superseded by LX_BLKPAG_AF and LX_BLKPAG_DBM.
- Improve comment

The need for reference/modify emulation has been eliminated,
and access/permission faults have been reduced, however,
there has been little change in overall performance.

drop WSDISPLAY_CUSTOM_BORDER, it's currently only used by vga(4) which isn't used on evbarm

enable WSDISPLAY_CUSTOM_BORDER and WSDISPLAY_CUSTOM_OUTPUT to match i386 GENERIC

dwcmmc: Add ACPI attach support

Add driver for DesignWare Ethernet Quality-of-Service controller.

Add ohci at acpi bindings. No known PNP IDs for this, so match using _CLS
and the PCI class/subclass/interface codes. Maybe this will take off.

add options COMPAT_LINUX32 (commented out)

efi: Add /dev/efi character device

Introduce a /dev/efi character device that provides a means for accessing
UEFI RT variable services from userland. Compatible with the FreeBSD ioctl
interface for ease of porting their libefivar and associated tools.

The ioctl interface is defined in sys/efiio.h.

To enable support for this on an arch, the kernel needs `pseudo-device efi`
and the MD EFI implementation needs to register its backend by calling
efi_ops_register(). This commit includes an implementation for Arm.

add support COMPAT_LINUX for aarch64

Add support for Apple M1 debug UART.

space+tab

Add initial support for Apple M1.

Currently supported devices:
- Interrupt controller
- IOMMU
- PCIe (USB3 and ethernet)
- Reboot via watchdog
- Framebuffer console

Add dsrtc* at iic?

Indent.

It's time to add ixg(4) and ixv(4).

move pad to GENERIC.common

Add pad(4) to arm kernels

branches: 1.177.4;
enable rge(4) on x86 and evbarm64

Add verbose output options commented out.

Add support for NXP Layerscape I2C controllers.

add vcaudio (intentionally this time)

gives working audio output on rpi3 without needing to run a 32-bit image.

remove accidental additions

add a commented out compat_ossaudio wherever there's compat_linux

requested by mrg

Disable nouveau for now. It can cause long pauses at boot and sometimes
fails to initialize the display at all.

Add support for Amlogic S922X(meson-g12b) SoCs

Add pcaiicmux.

Add support for i2c-mux-gpio and i2c-mux-pinctrl I2C mux virtual
controllers.

SBBR says that the CPPC interface should be used on AArch64 instead of
P-states and T-states. Enable acpipcc and acpicppc, and disable acpicpu.

acpicpu: Add support for ACPI P-states and T-states on Arm.

branches: 1.165.2;
Add smscphy(4) found on some RPI models.

move vmt(4) from MD to MI, and add support vmt on aarch64. tested on ESXi-Arm Fling

- move from sys/arch/x86/x86/{vmt.c,vmtreg.h,vmtvar.h} to sys/dev/vmt/{vmt_subr.c,vmtreg.h,vmtvar.h},
and split the attach part of the cpufeaturebus and fdt
- add aarch64 vmware backdoor op
- add include guard to vmt{reg,var}.h
- Yet there is still some little-endian dependency. it needs to be fixed in order to work properly on aarch64eb

add vmx(4) driver. tested on ESXi-Arm

Collapse all CPU_CORTEXA<n> options into CPU_CORTEX and do runtime
detection instead of ifdefs where required.

Add support for Privileged Access Never (ARMv8.1-PAN).

PAN provides the same functionality as SMAP on x86: it forbids kernel
access to userland pages when PSTATE.PAN=1, and allows such accesses when
PSTATE.PAN=0.

We clear SCTLR_SPAN, to guarantee that PAN=1 each time the kernel is
entered. We catch PAN faults and panic right away without further
processing. In copyin, copyout, etc, we temporarily authorize access to
userland pages.

PAN is a very useful exploit mitigation. Reviewed by ryo@, thanks. Tested
on Qemu. Enabled by default.

pmapboot_enter simplication
- bootpage_alloc in asm becomes pmapboot_pagealloc in C
- PMAPBOOT_ENTER_NOBLOCK is removed as it's not used
- PMAPBOOT_ENTER_NOOVERWRITE is removed as it's now always on
- physpage_allocator argument is removed as it's always
pmapboot_pagealloc
- Support for EARLYCONS without CONSADDR is removed so that the identity
map for CONSADDR is always known.

For the assembly files:
2 files changed, 40 insertions(+), 89 deletions(-)

LGTM ryo

Separate devicetree .dts -> .dtb building from kernel builds. They are now
part of a separate set, "dtb.tgz", and only built when MKDTB=yes. This
defaults to yes for earmv[67]* and aarch64, and no everywhere else.

Rockchip crypto engine RNG driver.

As found on the rk3288 and rk3399. This driver only supports the
TRNG, not the rest of the crypto engine, although it uses the AES unit
to do a self-test at attach time to verify that the engine works.

There seem to be two versions of the Rockchip crypto engine, v1 and
v2; this one is for v1. Can't name a driver `rkcryptov1' so we'll
clumsily call it `rkv1crypto' instead to leave room for `rkv2crypto'
later on.

The crypto binding derived from the Rockchip BSP Linux kernel, in the
location it appears on the rk3399, is in rk3399-crypto.dtsi, since
there doesn't seem to be a better place to put it at the moment among
this twisty maze of inclusions, all different.

Enable nouveaufb

Add (commented out) nouveaufb

Add acpiacad, acpibat, acpifan, acpitz

PMAP_DEBUG has been deleted on arm

Trailing whitespace

Add KUBSAN.

Add support for Branch Target Identification (BTI).

On the executable pages that have the GP (Guarded Page) bit, the semantic
of the "br" and "blr" instructions is changed: the CPU expects the first
instruction of the jump/call target to be "bti", and faults if it isn't.

We add the GP bit on the kernel .text pages (and incidentally the .rodata
pages, but we don't care). The compiler adds a "bti c" instruction at the
beginning of each C function. We modify the ENTRY() macros to manually add
"bti c" in the asm functions.

cpuswitch.S needs a specific change: with "br x27" the CPU expects "bti j",
which is bad because the functions begin with "bti c"; switch to "br x16",
for the CPU to accept "bti c".

BTI helps defend against JOP/COP. Tested on Qemu.

Add support for Pointer Authentication (PAC).

We use the "pac-ret" option, to sign the return instruction pointer on
function entry, and authenticate it on function exit. This acts as a
mitigation against ROP.

The authentication uses a per-lwp (secret) I-A key stored in the 128bit
APIAKey register and part of the lwp context. During lwp creation, the
kernel generates a random key, and during context switches, it installs
the key of the target lwp on the CPU.

Userland cannot read the APIAKey register directly. However, it can sign
its pointers with it, because the register is architecturally shared
between userland and the kernel. Although part of the CPU design, it is
a bit of an undesired behavior, because it allows to forge valid kernel
pointers from userland. To avoid that, we don't share the key with
userland, and rather switch it in EL0<->EL1 transitions. This means that
when userland executes, a different key is loaded in APIAKey than the one
the kernel uses. For now the userland key is a fixed 128bit zero value.

The DDB stack unwinder is changed to strip the authentication code from
the pointers in lr.

Two problems are known:

* Currently the idlelwps' keys are not really secret. This is because
the RNG is not yet available when we spawn these lwps. Not overly
important, but would be nice to fix with UEFI RNG.
* The key switching in EL0<->EL1 transitions is not the most optimized
code on the planet. Instead of checking aarch64_pac_enabled, it would
be better to hot-patch the code at boot time, but there currently is
no hot-patch support on aarch64.

Tested on Qemu.

branches: 1.149.2;
Add ACPI support.

Reduce default AUDIO_BLK_MS from 40msec to 10msec on all platform except m68k
(m68k uses 40msec default as before). And remove the option from GENERIC.
- It's not good idea to set such parameter in individual GENERICs.
- 4msec is (probably no problem for most modern real hardware but)
too aggressive to be default.
- 10msec is too severe for antique machines but it's hard to draw a line.

Attach sunxirtc in pass4; it's required by mmcpwrseq on some boards.

Add radeon, radeondrmkmsfb

sort Ethernet devices for ease to read

add SC2A11 sniemmc and sniiic devices

add ACPI attachment glue

redo the commit correctly

include files.sociox for generic64

Add brgphy

Add ACPI glue for Broadcom GENETv5

Add support for Broadcom GENET v5 ethernet controller as found on the
Raspberry Pi 4 (BCM2711).

Attach bcmgpio before devices that may need it

add MIDI sequencer device. now midiplay works on usb midi devices.

enable bwfm at sdio.

known to now work on pinebook pro and banana pi m2 zero.

Follow amd64 and set AUDIO_BLK_MS=4 by default

Add imxi2c

Add support for NXP i.MX 8M Dual/8M QuadLite/8M Quad family SoCs.

Enable sun8icrypto in GENERIC64.

But set its entropy estimate to zero until we have a better idea of
how it works. Can't really hurt this way unless sun8icrypto is
maliciously dependent on all other inputs to the entropy pool, which
seems unlikely.

branches: 1.130.2;
Add DTS files for new boards for the SOCs we support

Sort DTS

Attach psci as early as possible. This allows other power controllers to
register their own poweroff / reset callbacks with a higher preference.

Add bcm2711-rpi-4-b.dts

add cwfg

add aq(4). tested on rockpro64.

add es8316, simpleamp

Attach mmcpwrseq resource earlier

+ rk3399-pinebook-pro.dts

Add bcmmbox at acpi

Add sdhc at acpi

Add EARLYCONS=bcm2711 example (commented out)

enable panel at fdt drivers

add anxdp(4)

Draft driver for Allwinner Crypto Engine.

Found on, e.g., the Pinebook.

Only used for TRNG at the moment, but hooking it up to opencrypto(9)
shouldn't be too hard if anyone still cares about that these days.

The distribution of the alleged TRNG is very nonuniform distributed
seems to alternate between toward runs with exceptionally high
fractions of 0 bits and runs with exceptionally high fractions of 1
bits -- initially all my samples were mostly 0's, and then all my
samples were mostly 1's, and now I'm seeing more oscillation between
these runs.

So I've wired it up as RND_TYPE_UNKNOWN, not RND_TYPE_RNG (it will
immediately flunk our rngtest and be disabled), and I estimated it to
provide at most one bit of entropy per byte of data -- which may
still be optimistic. I also added a sysctl node hw.sun8icryptoN.rng
to read out 1024-byte samples for analysis, and I left the driver
commented out in GENERIC64 for now.

(If anyone has contacts at Allwinner who can tell us about how the
alleged TRNG is supposed to work, please let me know!)

Add sun6ispi

Add spdiftx

Add rki2s

Enable Rockchip display support

add mpt(4) SCSI controller support (seen plugged into a rockpro64.)

Add (commented out) Rockchip display support

evbarm: add dwcwdt(4) to GENERIC64

Increase maxusers to 64 for 64-bit kernels

Add support for Mellanox 5th generation ethernet devices. This driver
supports the ConnectX-4 Lx EN, ConnectX-4 EN, ConnectX-5 EN, and
ConnectX-6 EN adapters.

Driver ported from OpenBSD.

Add (commented out) UVMHIST options

include the spiflash driver in the stock 64-bit kernel

As it can be attached via fdt now. For Rockpro64.

rkspi* at fdt?

branches: 1.103.2;
Replace the HDAUDIO_32BIT_ACCESS option with a runtime option. Set it for
tegra_hdaudio, but not for the pci attachment. Add hdaudio@pci to GENERIC64

Add wm(4)

Add a couple of spaces to do the <space><tab> thing

Rename watchdog -> bcmpmwdog and sdhost to bcmsdhost

Add KASAN_PANIC, an option to turn KASAN warning into kernel panics,
requested by Siddharth. While here clarify a little.

add ahcisata at pci

Add rkpcie, rkpciephy

Attach sunxi dma controllers earlier.

Comment out VERBOSE_INIT_ARM

Increase I2C_MAX_ADDR to 0xfff for sunxi RSB

Add bcm2837-rpi-3-a-plus.dts, meson-gxl-s805x-libretech-ac.dts,
meson-gxl-s905d-phicomm-n1.dts, rk3399-gru-scarlet-inx.dts,
rk3399-gru-scarlet-kd.dts, rk3399-nanopc-t4.dts, rk3399-nanopi-m4.dts,
rk3399-rock-pi-4.dts, sun50i-a64-amarula-relic.dts,
sun50i-a64-pine64-lts.dts, sun50i-h5-emlid-neutis-n5-devboard.dts,
sun50i-h6-orangepi-lite2.dts, tegra210-p2894-0050-a08.dts.

Add rkpwm and pwmfan

implement TSADC driver for rockchip RK3328 and RK3399. so far, only
tested on RK3399 but the RK3328 looks mostly the same and has a good
chance of working too.

add clock entries for "clk_tsadc" and "pclk_tsadc" to cru.

exports "CPU" and "GPU" temp sensors. these currently limited to 5
degC resolution but can be reduced to sub 1 degC resolution with some
interpolation.

todo list:

- handle setting various temp values
- add interpolation between the 5degC intervals in sample data
- handle DT trips/temp value defaults
- interrupts aren't triggered (test by lowering warn/crit values),
and once they work, make the interrupt do something
- test on RK3328, and port to other rockchips (will require moving
some part into per-chipset sections, such as code<->temp tables)


thanks to jmcneill for help.

Add mesonrng

Add driver for Meson GX EE-domain watchdog timer.

Add support for Meson GXL internal PHY.

Remove qsphy(4), this 20+ year old PHY driver accidentally attaches to the Meson GXL internal PHY

Add support for Amlogic Meson GXL family SoCs.

Explicitly include bold8x16 and bold16x32 fonts

G/C

Add support for Rockchip eMMC PHY

Enable WSDISPLAY_SCROLLSUPPORT in evbarm GENERICs.

Add bcm2837-rpi-cm3-io3.dts, rk3399-ficus.dts, rk3399-gru-bob.dts, rk3399-roc-pc.dts, rk3399-rock960.dts, sun50i-h5-bananapi-m2-plus-v1.2.dts, sun50i-h5-bananapi-m2-plus.dts, sun50i-h6-orangepi-one-plus.dts

Add support for Amlogic S905 (Meson GXBB) SoCs.

move sunxide2ccu to pass 3, now it works on my H5
from jmcneill@

Add anxedp

Enable Allwinner A64 display pipeline

Add Allwinner A64 display pipeline drivers (commented out for now)

Add drivers for DE2 bus and clock controllers.

Add sunxisramc

Attach sunxirsb earlier so axppmic regulators are available for usbphy

Disable DEBUG by default.

Comment out DIAGNOSTIC while where are it's already defined by
GENERIC.common

turn on INCLUDE_CONFIG_FILE.

Add com at acpi

Add ena at pci

Add puc at pci and com at puc

Add nvme at pci

Enable CPU_THUNDERX

Add virtio at pci, scsibus at scsi, and sd at scsibus

Add CPU_THUNDERX which sets COHERENCY_UNIT and CACHE_LINE_SIZE to 128

Trailing whitespace

Add kASan support for aarch64. Stack tracking needs more investigation
and will come in a separate commit.

Reviewed by ryo@ jmcneill@ skrll@.

Add support for EFI runtime services on aarch64.

Add xhci at acpi

Add ehci at acpi

Add sbsawdt at acpi

Add acpiged at acpi

Add gicvthree at acpi

Add acpibut at acpi, acpilid at acpi

Add virtio at acpi

Add qemufwcfg at acpi

Add amdccp(4) driver for AMD Cryptographic Coprocessor, as found on the
A11xx Opterons. Driver currently provides RNG service only.

Add dwiic at acpi

Add SOC_THUNDERX (commented out for now as it changes COHERENCY_UNIT)

Add plgpio at acpi

Rename pl061gpio to plgpio and split the device logic from the FDT glue.

Add acpipchb

Add ahcisata at acpi

Add basic ACPI support

add initial support of COMPAT_NETBSD32 on AArch64.
arm ELF32 EABI binaries could be execute in AArch32 state on AArch64. A32 THUMB mode is not supported yet.

Sort the SOC_ list

Add commented out Cavium CN88XX ThunderX EARLYCONS and CONSADDR

Add qemufwcfg

Add plrtc

Add virtio

Add dwiic(4) and spdmem(4).

Enable msk(4)

Enable WSDISPLAY_MULTICONS

Add pl061gpio, pcihost, mskc/msk (commented out), ehci@pci, ohci@pci, and xhci@pci

Add rkpmic

Add (commented out) EARLYCONS entry for rk3399

Add fan53555reg

Add rk3399-rockpro64.dts

Enable support for GICv3 and Rockchip RK3399

add pseudo-device tprof (fix build)

Add armpmu

Remove "options IPKDB", and the other associated options, from the config
files.

ipkdb is being retired. Its code is really old, and hasn't kept pace with
today's expectations: IPv6, SMP, modern NICs. The associated code for x86
was already removed because it was too incorrect to stay.

There are plans to rewrite a similar feature from scratch.

ok kamil christos

Enable options MULTIPROCESSOR

Add rkiic

Add bcm2835-rpi-zero-w.dts and bcm2837-rpi-3-b-plus.dts as appropriate

PR/53284 - Support RPI3B+,RPI0W,RPI2-1.2

Attach simplebus on pass 0

cpus: use fdt_add_bus

Allow nodes to attach child devices using the same sorting rules as used
by the simplebus driver.

add syscon

branches: 1.19.2;
dts: add sun50i-h5-libretech-all-h3-cc.dts

Comment out EARLYCONS

Add initial support for Rockchip RK3328 SoC.

Add support for QEMU ARM Virtual Machine ("virt").

Add ausoc, sun8icodec, a64codec, sunxii2s

whitespace fix

Add sunxipwm, pwmbacklight

Add sun50ia64rccu

Rename axp806pmic to axppmic, and add support for AXP803.

Add axp806pmic, axp806reg

Add sunxinmi

Add sun50ih6rccu

add pcf8563rtc

Add sunxiusb3phy

Enable Allwinner H6 support

Enable motg

Enable Allwinner SID and thermal sensor controller

Add sun50i-a64-teres-i.dts, sun50i-h5-orangepi-zero-plus.dts

branches: 1.1.2;
Add initial support for ARMv8 (AARCH64) (by nisimura@ and ryo@)

- sys/arch/evbarm64 is gone and integrated into sys/arch/evbarm. (by skrll@)
- add support fdt. evbarm/conf/GENERIC64 fdt (bcm2837,sunxi,tegra) based generic 64bit kernel config. (by skrll@, jmcneill@)