[PATCH 0/32] My current serie of patches for 2.6.20 for review

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

This should be ready for merge in powerpc tree and 2.6.20 as soon
as the merge window opens.

One prerequisite is Geoff's patch testing ppc_md.init_early for
NULL before calling it as I removed pasemi's init_early (now
empty) with the DMA patch.

[Note: Differences since the last version are the renaming of
dev_sysdata to dev_archdata along with a few more cosmetic
mostly changes to that patch, adapting the others to that change,
a bug fix for iseries, and pasemi was missing from the DMA changes,
this version fixes it]

Note that the first 5 ones require specific comments:

* ibmveth: Remove ibmveth "liobn" field

  is already queued with Jeff Garzik and will get in 2.6.20
  via his merge tree

* Call platform_notify_remove later

  is queued in -mm and Andrew sent it to Greg, I expect greg to
  merge it in 2.6.20

* Driver core: add notification of bus events

  is queued in Greg's tree and scheduled for merge in 2.6.20

* arch provides generic iomap missing accessors

  was written by Linus but is not merged yet. He asked me to
  resend it when needed, so I'll include it with the other patches
  when the merge window opens.

* Add arch specific dev_archdata to struct device

  this seems to be generally accepted and should be merged by Greg
  or Andrew in 2.6.20

* Change ACPI to use dev_archdata instead of firmware_data

  this is a patch that goes along the previous one (though not actually
  necessary). It doesn't actually need to go in powerpc.git nor 2.6.20,
  I included it in this serie for completeness

This patch set started its life as the support for the new "Axon"
southbridge for cell (which includes such things as MMIO mapped DCR
and 4xx-type devices). However, as things evolved, I ended up doing
a lot more than just the basic support. Among other highlights of
this patch serie are:

 - Generic DCR support for both 4xx-type DCRs and MMIO mapped DCR and
MPIC & EMAC changes to work with that

 - Souped up of_platform_driver to make it easier to register entire
trees of devices at once, along with PCI host bridge detection support
for 64 bits architectures. Note that some name changes might break
compile of some platforms. I hope to have fixed everything before I
merge but don't forget to tell me if I missed something.

 - Completely reworked 64 bits DMA operations

 - Possibility to "hook" on PCI MMIO and PCI operations from the platform
code for use by iSeries, Cell and possibly others who have to deal with
weird hypervisor or PCI host bridge erratas. Currently supported only on
64 bits but would be easy to make it work on 32 bits if ever needed.

 - Merged 32 and 64 bits io.h. ARCH=powerpc now uses asm-powerpc/io.h
for both. ARCH=ppc still uses the old one in asm-ppc as I really don't
feel like dealing with some of the cruft in there.

 - As a consequence of the 2 above, new accessors are available that match
what is done by other architectures: {read,write}{w,l,q}_be for big endian
PCI MMIO accesses, {read,write}s{b,w,l} for MMIO "repeat" operations, and
a significant cleanup of the EEH stuff.

 - Cell IOMMU support (mostly written by Jeremy Kerr)

And more ...