Add a list of files changed on the thorpej-bus-dma branch.  PLEASE KEEP THIS
LIST UP TO DATE!
Provide a bus dma tag to children via eisa_attach_hook().
Generic i386 implemenatation of the bus dma interface.  These functions
provide support for busses (such as EISA and PCI) which do not have
special needs, but may also be called by busses which do (ISA); These
functions provide the "bottom layer".

NOTE: Not all of the methods defined in the bus dma API have been
implemented (the more exotic ones, such as uio, mbuf, and raw loading,
and the mmap method).  Those will be addressed in the future.
Garbage-collect the isaphysmem hack; it is no longer needed.
Define types, constants, and access methods required by the bus dma
API specification.
Adapt to the new software interface to the on-board ISA DMA controller.
Implement ISA-specific bus dma methods, and provide the bus dma tag
to children via isa_attach_hook().  These bus dma methods are mostly
wrappers around the generic i386 bus dma methods, but include support
for DMA bounce buffers where required.
Provide a bus dma tag to children via pci_attach_hook().
Convert to use bus dma.
Stash the bus dma tag and bus-specific DMA flags in the softc.
Pass the EISA bus dma tag to children.
Convert to use bus dma.
Adapt to new software interface to the on-board ISA DMA controller.
- Stash the bus dma tag and bus-specific DMA flags in the softc.
- Adapt to new software interface to the on-board ISA DMA controller.
- Detect buggy VLB variants of this card.  Buggy cards get 24-bit
  ISA DMA, working cards (rev. 3.37 and higher) get to use 32-bit DMA.
Adapt to new software interface to the on-board ISA DMA controller.
Convert to use bus dma.
- Pass the bus dma tag to children.
- Map the on-board ISA DMA controller registers and the DMA page registers.
  The "delay port" lives in this range, so subregion it.
Mostly-rewrite, converting the ISA DMA controller driver to be a user
of the bus dma API.  A new isa_dma*() function call interface is exported
to drivers that need to use this controller.
- Provide the bus dma tag to children.
- Add DMA maps and requisite state information for the on-board ISA DMA
  controller.
Adapt to new software interface to the on-board ISA DMA controller.