Based on patch by Matthew Wilcox: make kernel work with old (broken) firmware
again and fix UP build problems.

	for symmetry with start_kernel() and to make it obvious when the
	end of the call-chain has been reached.

	done by these routines is very special and needs to be done
	at exactly the right time.  Removing it from the header-file
	reduces the risk of accidental misuse.  Other arch maintainers agree
	that this is the Right Thing to do.

Support for extended config space on ia64.

 - Add the new parameter 'type' to ia64_sal_pci_config_{read,write}
 - Change callers to match.
 - Don't check `value' for NULL -- drivers/pci/access.c guarantees it isn't.
 - Make pci_sal_ops static.
 - Add pci_sal_ext_ops.
 - Introduce pci_set_sal_ops() as an arch_initcall to ensure the raw_pci_ops
   get set before we walk the ACPI namespace to discover PCI root bridges

This patch reorganises sal.c and adds a small amount of new functionality.

 - Introduce sal_revision to report what revision of the SAL spec is
   supported by the system.
 - Introduce sal_version to report what version of the vendor's SAL
   implementation is present.
 - Introduce SAL_VERSION_CODE to allow for easy comparisons.
 - Print the version at boot, and remove the 'oem=' and 'vendor=' strings.
 - Refactor ia64_sal_init() into several smaller functions.
 - Delete the dead variables 'max' and 'min'.
 - Stop printing the pal_proc and sal_proc entry addresses.
 - Print "None" if there are no SAL platform features.

Here's my attempt at a zx1_defconfig.  I haven't checked it on many
of the zx1 boxes (only zx2000 and rx2600) but I've set some options
I know are needed on the other boxes.

This is a minor update to sba_iommu initialization code.  I moved the
relaxed ordering to the zx1 specific init routine, those registers don't
do anything on sx1000.  The iommu page size setup is more generalized on
ACPI ID, so the sx1000 specific init routine goes away.  And the virtual
dma_mask on zx1 was tweaked a little to better reflect the memory
address space.

The pdflush kernel threads can lead to an unbounded chain of thread-creations
which can overflow the kernel stacks because we didn't uses to reset
the stack on kernel thread-creation.  We do now.

Reported by Andreas Schwab, tracked down with help from Keith Owens.

This patch changes the I/O SAPIC code to cache the low 32 bits of the mask
word in kernel memory.  This greatly speeds up mask_irq() and unmask_irq().

Normally, these operations are not on the speed-critical path of the
kernel but with certain devices drivers (including users-level device-
drivers) they can become performance-critical.

        - fix bug in pfm_unload(), not allowed when not on correct CPU for
          system-wide
        - some perf/cleanup in overflow handler
        - fix reset_pmds to be on a per PMD basis on counter overflow rather
          than global
        - remove timing debug code on messages
        - no kernel info leak on PFM_END_MSG
        - remove double-store on reg_flags for pfm_write_pmcs, pfm_write_pmds
        - on restart reset_pmds is 0 by default
        - cleanup useless macros
        - cleanup some debug prints
        - added ability to remove debug code
        - streamlined sys_perfmonctl(), pfm_read_pmds(), pfm_write_*()
        - added current->tgid to default format sample header by using one
          reserved field

The problem was that IDE-disks on machines with IDE harddisks,
memory above 4GB and no hardware I/O TLB would go BUG_ON() in
blk_queue_bounce_limit() because the IDE-controller could only
address 4GB of memory and that was much less than BLK_BOUNCE_ISA
(which is equal to ISA_DMA_THRESHOLD).  Note that the problem does
NOT trigger with CD-ROMs, which always uses the software I/O TLB
(and hence bounce-buffers) on such machines.

The best fix seems to be to simply lower ISA_DMA_THRESHOLD to 4GB-1 since
that will ensure that the IDE block layer allocates memory with GFP_DMA,
which will minimize bounce buffering.

into tiger.hpl.hp.com:/data1/bk/lia64/to-linus-2.5

This patch fixes a bug which could cause do_softirq() to be called
at the wrong time (from do_IRQ()) or without pre-emption protection.

into kernel.bkbits.net:/home/davem/net-2.6

into nuts.davemloft.net:/disk1/BK/net-2.6

into ppc970.osdl.org:/home/torvalds/v2.5/linux

of redundancy, and to help prevent future errors.

This makes GregKH happy by removing the device name from the
device.bus_id field (and replacing it with a "name" sysfs attribute).

It also renames the parent device from "vdevice" to "vio", making the
/sys/bus and /sys/devices hierarchies consistent.

into ppc970.osdl.org:/home/torvalds/v2.5/linux

Add documentation for the above two functions.  Allow a NULL name to
be passed to amba_request_regions.  In this case, we use the driver's
name associated with the device.

This allows the decompressor to automatically detect the geometry of
the cache while booting to ensure correct behaviour over a wider
number of ARM CPUs.

This optimises the underlying string-long read function for little
endian platforms.

This gives greater information on the cause of the bad IRQ, allowing
the cause to be more effectively traced.

The old sysctl PM interface has been replaced by the driver models
interface.  This has been gone for a while in the -rmk tree and no
one complained, so there's no point keeping it around.

- use dev_dbg for device-centric debugging messages
- use pr_debug for general debugging messages
- use dmapools instead of pcipools
- use NULL rather than 0 for NULL pointers
- use enum dma_data_direction rather than int
- use DMA_* direction definitions rather than PCI_DMA_*
- only check for sane DMA direction on mapping functions, but
  check that DMA direction matches when unmapping/syncing.

Thanks to Adrian Bunk.

Remove kernel 2.0 #ifdef's from arm code, and move MODULE_* to
the end of the file.  Add an appropriate MODULE_LICENSE().

This patch makes it possible to select the hugetlbfs page size at boot-time,
rather than at compile-time.  We believe we have resolved all the remaining
issues.  All critical speed path has been taken care of, i.e., vhpt handler
and context switch.  There should be no performance penalty with this dynamic
hugetlb page size feature.

We would like to thank Jack Steiner for his initiative on this feature
and his initial cool working patch.

Currently, sinit_max_init_timeo is treated as the maximum timeout
value for INIT retransmissions and the INIT process is aborted when
the timeout reaches this value. But as per the SCTP sockets API draft,
sinit_max_init_timeo only limits the timeout. The INIT process should
be aborted only after MAX_INIT_RETRANSMITS.

Add an iseries defconfig and update the pseries one.

CONFIG_VETH isnt used anymore so we lets get rid of it.

Fix a compile error in the ppc64 pci hotplug code.