IFC @ r255209

Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCI
command register. The lazy BAR allocation code in FreeBSD sometimes
disables this bit when it detects a range conflict, and w

Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCI
command register. The lazy BAR allocation code in FreeBSD sometimes
disables this bit when it detects a range conflict, and will re-enable
it on demand when a driver allocates the BAR. Thus, the bit is no longer
a reliable indication of capability, and should not be checked. This
results in the elimination of a lot of code from drivers, and also gives
the opportunity to simplify a lot of drivers to use a helper API to set
the busmaster enable bit.

This changes fixes some recent reports of disk controllers and their
associated drives/enclosures disappearing during boot.

Submitted by: jhb
Reviewed by: jfv, marius, achadd, achim
MFC after: 1 day

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IFC @ r254014

IFC @253398

Merge fresh head.

Usnure that PCI bus BIS_GET_DMA_TAG() method sees the actual PCI
device which makes the request for dma tag, instead of some descendant
of the PCI device, by creating a pass-through trampoline for vg

Usnure that PCI bus BIS_GET_DMA_TAG() method sees the actual PCI
device which makes the request for dma tag, instead of some descendant
of the PCI device, by creating a pass-through trampoline for vga_pci
and ata_pci buses.

Sponsored by: The FreeBSD Foundation
Suggested by: jhb
Discussed with: jhb, mav
MFC after: 1 week

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sync from head

- With the demise of !ATA_CAM, ATA_STATIC_ID is the only ata(4) related
option left but actually consumed by ada(4), so move it to opt_ada.h
and get rid of opt_ata.h.
- Fix stand-alone build of a

- With the demise of !ATA_CAM, ATA_STATIC_ID is the only ata(4) related
option left but actually consumed by ada(4), so move it to opt_ada.h
and get rid of opt_ata.h.
- Fix stand-alone build of atacore(4) by adding opt_cam.h.
- Use __FBSDID.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.

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Remove all legacy ATA code parts, not used since options ATA_CAM enabled in
most kernels before FreeBSD 9.0. Remove such modules and respective kernel
options: atadisk, ataraid, atapicd, atapifd, at

Remove all legacy ATA code parts, not used since options ATA_CAM enabled in
most kernels before FreeBSD 9.0. Remove such modules and respective kernel
options: atadisk, ataraid, atapicd, atapifd, atapist, atapicam. Remove the
atacontrol utility and some man pages. Remove useless now options ATA_CAM.

No objections: current@, stable@
MFC after: never

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MFC

IFC @ r234692

sys/amd64/include/cpufunc.h
sys/amd64/include/fpu.h
sys/amd64/amd64/fpu.c
sys/amd64/vmm/vmm.c

- Add API to allow vmm FPU state init/save/restore.

FP stuff discussed with: kib

Merge head r232686 through r233825 into projects/pf/head.

- First pass at const'ifying ata(4) as appropriate.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers

MFC after: 1 week

Remove remnants of ATA_LOCKING uses in the ATA_CAM case and wrap it
along with functions, SYSCTLs and tunables that are not used with
ATA_CAM in #ifndef ATA_CAM, similar to the existing #ifdef'ed ATA

Remove remnants of ATA_LOCKING uses in the ATA_CAM case and wrap it
along with functions, SYSCTLs and tunables that are not used with
ATA_CAM in #ifndef ATA_CAM, similar to the existing #ifdef'ed ATA_CAM
code for the other way around. This makes it easier to understand
which parts of ata(4) actually are used in the new world order and
to later on remove the !ATA_CAM bits. It also makes it obvious that
there is something fishy with the C-bus front-end as well as in the
ATP850 support, as these used ATA_LOCKING which is defunct in the
ATA_CAM case. When fixing the former, ATA_LOCKING probably needs to
be brought back in some form or other.

Reviewed by: mav
MFC after: 1 week

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IFC @230489 (pending review).

Convert files to UTF-8

IFC to head to catch up the bhyve branch

Approved by: grehan@

Rename device_delete_all_children() into device_delete_children().

Suggested by: jhb @ and marius @
MFC after: 1 week

IFC @ r227804

Pull in the virtio drivers from head.

Move the device_delete_all_children() function from usb_util.c
to kern/subr_bus.c. Simplify this function so that it no longer
depends on malloc() to execute. Identify a few other places where
it mak

Move the device_delete_all_children() function from usb_util.c
to kern/subr_bus.c. Simplify this function so that it no longer
depends on malloc() to execute. Identify a few other places where
it makes sense to use device_delete_all_children().

MFC after: 1 week

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In r225931 I've missed the only other driver using the pointer returned
by rman_get_virtual(9) to access device registers sparc64 currently cares
about.
Ideally ata(4) should just be converted to acc

In r225931 I've missed the only other driver using the pointer returned
by rman_get_virtual(9) to access device registers sparc64 currently cares
about.
Ideally ata(4) should just be converted to access these using bus_space(9)
read/write functions instead as there's really no reason to do it the
former way. However, this part of ata-siliconimage.c should go away in
favor of siis(4) sooner or later anyway and I don't have the hardware to
actually test the SX4 bits of ata-promise.c.
Also ideally the other architectures should also properly handle the
BUS_SPACE_MAP_LINEAR flag of bus_space_map(9) so this code wouldn't need
to be #ifdef'ed.

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IFC @ r226824

Some dmesg cosmetics:
- for the legacy PCI ATA channels move channel number out of the device
description, same as it is for ahci(4), siis(4) and mvs(4);
- add device description for the ISA ATA ch

Some dmesg cosmetics:
- for the legacy PCI ATA channels move channel number out of the device
description, same as it is for ahci(4), siis(4) and mvs(4);
- add device description for the ISA ATA channels.

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IFC @ r225592

sys/dev/bvm/bvm_console.c - move up to the new alt-break order.

Integrate FreeBSD/head into projects/zfsd/head as of SVN revision 224870.