Apply the other half of merges to sdhci_imx(4) and sdhci_fsl(4) that
somehow stayed local when committing r318198, probably due to the
associated tree conflicts.

While at it, register the dependency of sdhci_fsl(4) on sdhci(4) and
allow the former to be built.

MFC r288071:

- arm64 change was omitted due to lack of architecture support
- ia64 change was added as the architecture was removed from ^/head

Sponsored by: EMC / Isilon Storage Division

r288071 (by emaste):

Move kbd.c to main sys/conf/files list

It is (optionally) used on all architectures.

MFC r261891: provide fast versions of ffsl and flsl for i386; ffsll and
flsll for amd64

MFC r279368, r280772, r280848:

Allow creating subclass of FDT simplebus

Make simplebus a base class of ofwbus.

Fix bug in xrefinfo_find() for 64-bit platforms

MFC r275779, r275963, r276101, r276161, r276297:

Move ofw_cpu.c to sys/dev/ofw so that it can be used by other
architectures.

Add driver for CPU frequency/voltage control on the Raspberry Pi.

On initialization, do not use bcm_mbox_intr() to read the pending messages.
This fixes the hang that happens on boot while initializing the cpufreq on
Raspberry Pi.

MFC PS3 vt(4) console support

r265871 (nwhitehorn):

Move the PS3 framebuffer console to use vt instead of syscons and
adjust GENERIC64 for PowerPC to use vt with it.

Much to my chagrin, PS3 support seems to have bitrotted somewhat since
the last time I tried it. ehci panics on attach and interrupt handling
seems to be faulty. This should be fixed soon...

r269783 (dumbbell):

Fix two files forgotten in r269783 (vt_generate_cons_palette)

r268895 (nwhitehorn):

Enable X11 via xf86-video-scfb on the Playstation 3. This commit made
from an xterm running for the first time on said Playstation.

Approved by: nwhitehorn
Relnotes: yes

MFC r261423, r261424, r261516, r261513, r261562, r261563, r261564, r261565,
r261596, r261606

Add the imx sdhci controller.

Move Open Firmware device root on PowerPC, ARM, and MIPS systems to
a sub-node of nexus (ofwbus) rather than direct attach under nexus. This
fixes FDT on x86 and will make coexistence with ACPI on ARM systems easier.
SPARC is unchanged.

Add the missing ')' at end of sentence. Reword it to use a more common idiom.

Pass the kernel physical address to initarm through the boot param struct.

Make functions only used in vfp.c static, and remove vfp_enable.

Fix __syscall on armeb EABI. As it returns a 64-bit value it needs to
place 32-bit data in r1, not r0. 64-bit data is already packed correctly.

Use abp_physaddr for the physical address over KERNPHYSADDR. This helps us
remove the need to load the kernel at a fixed address.

Remove references to PHYSADDR where it's used only in debugging output.

Dynamically generate the page table. This will allow us to detect the
physical address we are loaded at to change the mapping.

MFC r258259, r258798, r259010

Unify handling of illegal instruction faults between AIM and Book-E.

Make uart_cpu_powerpc work on both FDT and OFW systems.

Fix debug printfs in FPU_EMU to compile on powerpc64 and enable it for
powerpc64.

MFC r258247, r258250, r258257

Remove a pointless #ifdef AIM. This is just PPC64 specific, including
64-bit Book-E.

Make single precision floating point arithmetic actually work

Split the function of the PCB_FPU flags into two: PCB_FPU now indicates that
the actual FPU is enabled, while PCB_FPREGS indicates that the FPU state
structure in the PCB is valid.

MFC r257995, r258244, r258246,

Rename the "bare" platform "mpc85xx"
Also turn "bare" into a truly bare platform

Move CCSR discovery into the platform module

There is no reason Book-E needs to save XER and CTR on context switches.

MFC r258002, r258024, r258027, r258051, r258052, r258243, r258244, r258002,
r258024, r258027, r258051, r258052, r258243,

Follow up r223485, which made AIM use the ABI thread pointer instead of
PCPU fields for curthread, by doing the same to Book-E.

Use the same implementation of copyinout.c for both AIM and Book-E.

Actually add IOMMU domain to the list of known mappings.

Following the approach with ACPI DMAR on x86, split IOMMU handling into
a variant PCI bus instead of trying to shoehorn it into the PCI host bridge
adapter.

Make sure that TLB1 mappings are aligned correctly.

MFC r257115, r257116, r257117

Remove dead and duplicated code.

MFC r256994, r257016, r257055, r257059, r257060, r257075

Add two new interfaces to ofw_bus:
- ofw_bus_map_intr()
Maps an (iparent, IRQ) tuple to a system-global interrupt number in some
platform dependent way. This is meant to be implemented as a replacement
for [FDT_]MAP_IRQ() that is an MI interface that knows about the bus
hierarchy.
- ofw_bus_config_intr()
Configures an interrupt (previously mapped) based on firmware sense flags.
This replaces manual interpretation of the sense field in bus drivers and
will, in a follow-up, allow that interpretation to be redirected to the PIC
drivers where it belongs. This will eventually replace the tables in
/sys/dev/fdt/fdt_ARCH.c

The PowerPC/AIM code has been converted to use these globally, with an
implementation in terms of MAP_IRQ() and powerpc_config_intr(), assuming
OpenPIC, at the bus root in nexus(4). The ofw_bus_config_intr() will shortly
be integrated into pic_if.m and bounced through nexus into the PIC tree.

Factor out MI portions of the PowerPC nexus device into /sys/dev/ofw. The
sparc64 driver will be modified to use this shortly.

Allow PIC drivers to translate firmware sense codes for themselves. This
is designed to replace the tables in dev/fdt/fdt_ARCH.c, but will not
happen quite yet.

Do not map IRQs twice. This fixes PowerPC/FDT systems with multiple PICs,
which would try to treat the previously-mapped interrupts from
fdt_decode_intr() as interrupt line numbers on the same parent PIC.

Remove some of the code required for supporting ssm(4) on SPARC in favor
of a more PowerPC/FDT-focused design. Whenever SPARC64 is integrated
into this rework, this should be (trivially) revisited.

MFC r256870, r256898, r256899, r256900 (by nwhitehorn):

Standards-conformance and code deduplication:
- Use bus reference phandles in place of FDT offsets as IRQ domain keys
- Unify the identical macio/fdt/mambo OpenPIC drivers into one
- Be more forgiving (following ePAPR) about what we need from the device
tree to identify an OpenPIC
- Correctly map all IRQs into an interrupt domain
- Set IRQ_*_CONFORM for interrupts on an unknown PIC type instead of
failing attachment for that device.

Allow lots of interrupts (useful on multi-domain platforms) and do not
set device_quiet() on all devices attached under nexus(4).

MFC r256792, r256793, r256799 (by nwhitehorn): Unify AIM and booke code.

MFC r261421

Add driver for the ADT7460/ADT7467 fan controller found in later PowerBooks
and iBooks. Original work by andreast.

MFC r261342

Add hwpmc(4) support for the PowerPC 970 class processors, direct events.
This also fixes asserts on removal of the module for the mpc74xx.

The PowerPC 970 processors have two different types of events: direct events
and indirect events. Thus far only direct events are supported. I included
some documentation in the driver on how indirect events work, but support is
for the future.

MFC 259016,259019,259049,259071,259102,259110,259129,259130,259178,259179,
259203,259221,259261,259532,259615,259650,259651,259667,259680,259727,
259761,259772,259776,259777,259830,259882,259915,260160,260449,260450,
260688,260888,260953,261269,261547,261551,261552,261553,261585:
Merge the vt(4) driver (newcons) to stable/10.

Approved by: ray

MFC r261309

Unbreak non-SMP builds. This was broken by r259284. Also, reorganize the
code introduced in that revision a bit.

MFC r259284,r259287

Add PMU-based CPU frequency scalling. This is used on most Titanium
PowerBooks.

MFC: r258051, r258052

r258052:
Following the approach with ACPI DMAR on x86, split IOMMU handling into
a variant PCI bus instead of trying to shoehorn it into the PCI host bridge
adapter. Besides matching better the architecture on other platforms, this
also allows systems with multiple partitionable endpoints per PCI host
bridge to work correctly.

r258051:
Actually add IOMMU domain to the list of known mappings. This fixes a bug
where multiple devices in the same IOMMU domain would be allocated
conflicting mappings unless they also shared a DMA tag.

MFC r257991, r257992, 257993, 258504

r257991:
Consolidate Apple firmware hacks and improve them by switching on the
presence of mac-io devices in the tree, which uniquely identifies Apple
hardware.

r257992:
Allow OF_decode_addr() to also be able to map resources on big-endian
devices. To this end, make PCI device detection rely on the device_type
field rather than name, as per the standard.

r257993:

Make tsec work with the device tree present on the RB800. The previous code
assumed that the MDIO bus was a direct child of the Ethernet interface. It
may not be and indeed on many device trees is not. While here, add proper
locking for MII transactions, which may be on a bus shared by several MACs.

r258504:

Save and restore the trap vectors when doing OF calls on pSeries machines.

It turned out that on pSeries machines the call into OF modified the trap
vectors and this made further behaviour unpredictable.

With this commit I'm now able to boot multi user on a network booted
environment on my IntelliStation 285. This is a POWER5+ machine.

MFC r256777-256779,256788:
Add driver for POWER hypervisor interpartition ethernet.

Approved by: re (glebius)

MFC r279368, r280772, r280848:

Allow creating subclass of FDT simplebus

Make simplebus a base class of ofwbus.

Fix bug in xrefinfo_find() for 64-bit platforms

MFC r275779, r275963, r276101, r276161, r276297:

Move ofw_cpu.c to sys/dev/ofw so that it can be used by other
architectures.

Add driver for CPU frequency/voltage control on the Raspberry Pi.

On initialization, do not use bcm_mbox_intr() to read the pending messages.
This fixes the hang that happens on boot while initializing the cpufreq on
Raspberry Pi.

MFC PS3 vt(4) console support

r265871 (nwhitehorn):

Move the PS3 framebuffer console to use vt instead of syscons and
adjust GENERIC64 for PowerPC to use vt with it.

Much to my chagrin, PS3 support seems to have bitrotted somewhat since
the last time I tried it. ehci panics on attach and interrupt handling
seems to be faulty. This should be fixed soon...

r269783 (dumbbell):

Fix two files forgotten in r269783 (vt_generate_cons_palette)

r268895 (nwhitehorn):

Enable X11 via xf86-video-scfb on the Playstation 3. This commit made
from an xterm running for the first time on said Playstation.

Approved by: nwhitehorn
Relnotes: yes

MFC r261423, r261424, r261516, r261513, r261562, r261563, r261564, r261565,
r261596, r261606

Add the imx sdhci controller.

Move Open Firmware device root on PowerPC, ARM, and MIPS systems to
a sub-node of nexus (ofwbus) rather than direct attach under nexus. This
fixes FDT on x86 and will make coexistence with ACPI on ARM systems easier.
SPARC is unchanged.

Add the missing ')' at end of sentence. Reword it to use a more common idiom.

Pass the kernel physical address to initarm through the boot param struct.

Make functions only used in vfp.c static, and remove vfp_enable.

Fix __syscall on armeb EABI. As it returns a 64-bit value it needs to
place 32-bit data in r1, not r0. 64-bit data is already packed correctly.

Use abp_physaddr for the physical address over KERNPHYSADDR. This helps us
remove the need to load the kernel at a fixed address.

Remove references to PHYSADDR where it's used only in debugging output.

Dynamically generate the page table. This will allow us to detect the
physical address we are loaded at to change the mapping.

MFC r258259, r258798, r259010

Unify handling of illegal instruction faults between AIM and Book-E.

Make uart_cpu_powerpc work on both FDT and OFW systems.

Fix debug printfs in FPU_EMU to compile on powerpc64 and enable it for
powerpc64.

MFC r258247, r258250, r258257

Remove a pointless #ifdef AIM. This is just PPC64 specific, including
64-bit Book-E.

Make single precision floating point arithmetic actually work

Split the function of the PCB_FPU flags into two: PCB_FPU now indicates that
the actual FPU is enabled, while PCB_FPREGS indicates that the FPU state
structure in the PCB is valid.

MFC r257995, r258244, r258246,

Rename the "bare" platform "mpc85xx"
Also turn "bare" into a truly bare platform

Move CCSR discovery into the platform module

There is no reason Book-E needs to save XER and CTR on context switches.

MFC r258002, r258024, r258027, r258051, r258052, r258243, r258244, r258002,
r258024, r258027, r258051, r258052, r258243,

Follow up r223485, which made AIM use the ABI thread pointer instead of
PCPU fields for curthread, by doing the same to Book-E.

Use the same implementation of copyinout.c for both AIM and Book-E.

Actually add IOMMU domain to the list of known mappings.

Following the approach with ACPI DMAR on x86, split IOMMU handling into
a variant PCI bus instead of trying to shoehorn it into the PCI host bridge
adapter.

Make sure that TLB1 mappings are aligned correctly.

MFC r257115, r257116, r257117

Remove dead and duplicated code.

MFC r256994, r257016, r257055, r257059, r257060, r257075

Add two new interfaces to ofw_bus:
- ofw_bus_map_intr()
Maps an (iparent, IRQ) tuple to a system-global interrupt number in some
platform dependent way. This is meant to be implemented as a replacement
for [FDT_]MAP_IRQ() that is an MI interface that knows about the bus
hierarchy.
- ofw_bus_config_intr()
Configures an interrupt (previously mapped) based on firmware sense flags.
This replaces manual interpretation of the sense field in bus drivers and
will, in a follow-up, allow that interpretation to be redirected to the PIC
drivers where it belongs. This will eventually replace the tables in
/sys/dev/fdt/fdt_ARCH.c

The PowerPC/AIM code has been converted to use these globally, with an
implementation in terms of MAP_IRQ() and powerpc_config_intr(), assuming
OpenPIC, at the bus root in nexus(4). The ofw_bus_config_intr() will shortly
be integrated into pic_if.m and bounced through nexus into the PIC tree.

Factor out MI portions of the PowerPC nexus device into /sys/dev/ofw. The
sparc64 driver will be modified to use this shortly.

Allow PIC drivers to translate firmware sense codes for themselves. This
is designed to replace the tables in dev/fdt/fdt_ARCH.c, but will not
happen quite yet.

Do not map IRQs twice. This fixes PowerPC/FDT systems with multiple PICs,
which would try to treat the previously-mapped interrupts from
fdt_decode_intr() as interrupt line numbers on the same parent PIC.

Remove some of the code required for supporting ssm(4) on SPARC in favor
of a more PowerPC/FDT-focused design. Whenever SPARC64 is integrated
into this rework, this should be (trivially) revisited.

MFC r256870, r256898, r256899, r256900 (by nwhitehorn):

Standards-conformance and code deduplication:
- Use bus reference phandles in place of FDT offsets as IRQ domain keys
- Unify the identical macio/fdt/mambo OpenPIC drivers into one
- Be more forgiving (following ePAPR) about what we need from the device
tree to identify an OpenPIC
- Correctly map all IRQs into an interrupt domain
- Set IRQ_*_CONFORM for interrupts on an unknown PIC type instead of
failing attachment for that device.

Allow lots of interrupts (useful on multi-domain platforms) and do not
set device_quiet() on all devices attached under nexus(4).

MFC r256792, r256793, r256799 (by nwhitehorn): Unify AIM and booke code.

MFC r261421

Add driver for the ADT7460/ADT7467 fan controller found in later PowerBooks
and iBooks. Original work by andreast.

MFC r261342

Add hwpmc(4) support for the PowerPC 970 class processors, direct events.
This also fixes asserts on removal of the module for the mpc74xx.

The PowerPC 970 processors have two different types of events: direct events
and indirect events. Thus far only direct events are supported. I included
some documentation in the driver on how indirect events work, but support is
for the future.

MFC 259016,259019,259049,259071,259102,259110,259129,259130,259178,259179,
259203,259221,259261,259532,259615,259650,259651,259667,259680,259727,
259761,259772,259776,259777,259830,259882,259915,260160,260449,260450,
260688,260888,260953,261269,261547,261551,261552,261553,261585:
Merge the vt(4) driver (newcons) to stable/10.

Approved by: ray

MFC r261309

Unbreak non-SMP builds. This was broken by r259284. Also, reorganize the
code introduced in that revision a bit.

MFC r259284,r259287

Add PMU-based CPU frequency scalling. This is used on most Titanium
PowerBooks.

MFC: r258051, r258052

r258052:
Following the approach with ACPI DMAR on x86, split IOMMU handling into
a variant PCI bus instead of trying to shoehorn it into the PCI host bridge
adapter. Besides matching better the architecture on other platforms, this
also allows systems with multiple partitionable endpoints per PCI host
bridge to work correctly.

r258051:
Actually add IOMMU domain to the list of known mappings. This fixes a bug
where multiple devices in the same IOMMU domain would be allocated
conflicting mappings unless they also shared a DMA tag.

MFC r257991, r257992, 257993, 258504

r257991:
Consolidate Apple firmware hacks and improve them by switching on the
presence of mac-io devices in the tree, which uniquely identifies Apple
hardware.

r257992:
Allow OF_decode_addr() to also be able to map resources on big-endian
devices. To this end, make PCI device detection rely on the device_type
field rather than name, as per the standard.

r257993:

Make tsec work with the device tree present on the RB800. The previous code
assumed that the MDIO bus was a direct child of the Ethernet interface. It
may not be and indeed on many device trees is not. While here, add proper
locking for MII transactions, which may be on a bus shared by several MACs.

r258504:

Save and restore the trap vectors when doing OF calls on pSeries machines.

It turned out that on pSeries machines the call into OF modified the trap
vectors and this made further behaviour unpredictable.

With this commit I'm now able to boot multi user on a network booted
environment on my IntelliStation 285. This is a POWER5+ machine.

MFC r256777-256779,256788:
Add driver for POWER hypervisor interpartition ethernet.

Approved by: re (glebius)