Add intelpmc(4), a driver for the power management controller found on
various Intel SoCs. The driver takes care of calling the AML methods
needed to enter low power idle states during suspend-to-id

Add intelpmc(4), a driver for the power management controller found on
various Intel SoCs. The driver takes care of calling the AML methods
needed to enter low power idle states during suspend-to-idle (S0i).
The driver also implements some debug code that prints the residency of
various power states in dmesg. Based on some earlier code by jcs@

ok jcs@

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Make the Samsung Galaxy Book4 Edge (x1e80100) boot in ACPI mode;
Until now the kernel did panic during early boot because we couldn't
respond to the battery requests sent to the 0xa1 "bus". This (du

Make the Samsung Galaxy Book4 Edge (x1e80100) boot in ACPI mode;
Until now the kernel did panic during early boot because we couldn't
respond to the battery requests sent to the 0xa1 "bus". This (dummy)
driver registers a 0xa1 region space very early, and responds with a
static zero value to satisfy the battery requests on 0xa1, which let us
boot successfully to multi-user.

In the future this machine should be operated in FDT mode, and an improved
AML parsing interface might make this workaround obsolete also for RAMDISK.

Help and OK kettenis@, deraadt@

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add iosf(4), a driver for the Intel OnChip System Fabric

The OnChip System Fabric is mostly an implementation detail on a
bunch of Intel SoC platforms we usually don't care about, except
on some of

add iosf(4), a driver for the Intel OnChip System Fabric

The OnChip System Fabric is mostly an implementation detail on a
bunch of Intel SoC platforms we usually don't care about, except
on some of these machines there are devices shared between the
kernel and the platform that need to coordinate. The iosf(4) driver
allows the kernel to talk via a mailbox interface to take and
release a semaphore that the hardware also uses to lock around
accesses to some components.

There are two ways to talk to the mailbox interface, one via mmio
ops on an INT33BD acpi device. The other is via magic pci conf space
operations on the pci host device. This provides a generic iosf
driver with attachment glue for both acpi and pci so either can be
used. According to linux, the pci ops are a lot more reliable and
less buggy, so if both acpi and pci are available we will prefer
the pci ops after they attach.

I found this because I got a Dell Wyse 3040, which is a cherry
trail/braswell system that has an acpitz(4) which talks to a tipmic(4)
device attached to dwiic(4) on acpi. This box almost always locked
up by the time it got to showing the console login prompt, and it
turns out one of the reasons for this is because acpitz was touching
the tipmic device at the same time the powerunit on the platform
was also trying to use it. The tipmic device lists the iosf mailbox
as a dependency, and the dwiic controller has a _SEM property, both
of which indicate we should use an iosf device to coordinate iic
ops when talking to the tipmic.

This adds the code, but doesn't wire it into dwiic or the build yet.

help from patrick@ jsg@ kettenis@
ok kettenis@ patrick@

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Initial driver for Universal Flash Storage (UFS) Host Controllers.

ok kettenis@

Add FDT-based attachment for qciic(4).

ok kettenis@

Add FDT-based attachment for qcgpio(4).

ok kettenis@

Add qcgpio(4) and qciic(4), drivers for the Qualcomm GPIO and I2C controllers
found on the SC8280XP SoC. Together these drivers make the keyboard,
trackpoint and touchpad work on the x13s.

ok deraa

Add qcgpio(4) and qciic(4), drivers for the Qualcomm GPIO and I2C controllers
found on the SC8280XP SoC. Together these drivers make the keyboard,
trackpoint and touchpad work on the x13s.

ok deraadt@

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Allow ohci(4) and ehci(4) to attach to acpi(4).

ok kettenis@

Add address locators for the ACPI "bus" and use these to fix the order of
the com(4) devices to match the traditional order one the ISA bus.

ok patrick@, anton@

Add dwgpio(4) a driver for the Synopsys DesignWare GPIO controller.

ok gnedzo@

Add ACPI support to imxiic(4).

ok kettenis@

Add acpige(4), a driver for ACPI generic event devices. This is a rather
simple device that simply reacts to interrupts by invoking _EVT with the
interrupt number. This is used on the HoneyComb LX2

Add acpige(4), a driver for ACPI generic event devices. This is a rather
simple device that simply reacts to interrupts by invoking _EVT with the
interrupt number. This is used on the HoneyComb LX2K to implement power
button handling.

ok kettenis@

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Add pchgpio(4), a driver for the GPIO controllers found on modern Intel
PCHs. With help from James Hastings.

ok deraadt@

Adding IOMMU support for AMD Vi and Intel VTD (disabled)
This creates separate domains for each PCI device and can provide protection
against invalid memory access. Needed for Passthrough PCI from v

Adding IOMMU support for AMD Vi and Intel VTD (disabled)
This creates separate domains for each PCI device and can provide protection
against invalid memory access. Needed for Passthrough PCI from vmd.
ok deraadt@, kettenis@
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abl(4) is a new driver to control the backlight brightness on Intel based
Apple machines. The driver attaches through acpi(4) when the HID
'APP0002' is found.

Thanks to kettenis@ for helping me sor

abl(4) is a new driver to control the backlight brightness on Intel based
Apple machines. The driver attaches through acpi(4) when the HID
'APP0002' is found.

Thanks to kettenis@ for helping me sorting out the PCI bits.

ok kettenis@

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Make asmc(4) attach through acpi(4) instead of isa(4).
This e.g. makes the driver also work on iMac11,2.

ok kettenis@, jung@

add acpihid(4) for ACPI HID event and 5-button array devices

ok kettenis

Add bse(4), a driver for the Broadcom GENET v5 network interface found on
the Raspberry Pi4.

ok patrick@

Add amdgpio(4), a driver for the GPIO controller found on newer AMD
AMD SoCs/chipsets.

From James Hastings

Add glkgpio(4), a driver for the GPIO controllers found on Intel's Gemini
Lake SoC. From James Hastings.

Add aplgpio(4) a driver for the gpio controllers found on Intel's Apollo
Lake SoC.

From James Hastings
ok kettenis@

Add support for ccp(4) at acpi(4).

ok deraadt@

Allow pluart(4) to attach to acpi(4).

ok mlarkin@, patrick@

Allow xhci(4) to attach to acpi(4).

ok dlg@, patrick@, mpi@

Allow ahci(4) to attach to acpi(4).

ok deraadt@