add support for newer laptops and G5 desktops

move drivers/macintosh/nvram.c to drivers/char/generic_nvram.c,
update platform hooks,
fix powermac nvram driver for newer machines

especially related to the use of the btext early debug text
engine

It would fail to properly release the resource if taken over
by the macio device resource hierarchy. This could still use
some locking, but the io resource lock isn't exported

Without this, page aging is broken on ppc32

Another processor could be walking the page table in the middle of the
PTE page to be freeded. Synchronize with hash_page using the lock.

Add a fix fox machines that don't have HW timebase sync facility

used on machines that don't have a HW facility (or we don't drive
it yet like G5s)

contains a hack that is unfixable at the moment for getting the
IO base which is hard coded to bus number 0 (AGP on earlier machines).
We work around this by passing the IO base of bus 0xf0 when asked
for bus 0 in pciconfig_iobase on those machines. Bus 0 is the HT
root and has no IOs, so that is safe.

We no longer modify the device tree, we use an initdata static
array instead.

TI controller, add some for fixing up ATA & SATA controllers (switch normal
ATA to fully native mode and disable unused function on G5 K2 SATA)

Now that Al Viro fixed cramfs, it works beautifully as an initrd
filesystem.

So finally plumb it in.

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

o Cleanup reduced and faster code

o gcc-3.4 warning fix.

o Deleted obsolute header include

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

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

I've been chasing a weird SELinux bug which shows up mostly when doing
installs of a dev-* rpm (ie. creating and overwriting lots of block
device inodes), but which I've also seen when doing mkinitrd.

It turned out not to be an SELinux problem at all, but a core VFS
S_ISBLK bug.  It seems that SELinux simply widens the race window.

The code at fault is fs/fs-writeback.c:__mark_inode_dirty():

		/*
		 * Only add valid (hashed) inodes to the superblock's
		 * dirty list.  Add blockdev inodes as well.
		 */
		if (!S_ISBLK(inode->i_mode)) {
			if (hlist_unhashed(&inode->i_hash))
				goto out;
			if (inode->i_state & (I_FREEING|I_CLEAR))
				goto out;
		}

The "I_FREEING|I_CLEAR" condition was added after the ISBLK/unhashed
tests were already in the source, but I can't see any reason why we'd
want the I_FREEING test not to apply to block devices.  And indeed, this
results in all sorts of inode list corruptions.  Simply moving the
I_FREEING|I_CLEAR test out of the protection of the S_ISBLK() condition
fixes things entirely.

The existing 2.6 kernel will reliably fail on me in about 2 seconds once
"rpm -Uvh --force dev*.rpm" starts its actual installation of the new
inodes.  With the patch below I can't reproduce it at all.

From: Roland McGrath <roland@redhat.com>

The #include is the part of this patch that matters, so the #ifdef below
works.

The rest of the patch removes gratuitous duplication due to some strange
aversion to concision in the presence of #ifdef, the kind that is all too
common, utterly pointless, and error prone.

From: Pat Gefre <pfg@sgi.com>

rch/ia64/sn/io/machvec/pci_bus_cvlink.c
    Some pretty-print mods
    Use pin instead of slot for dma_flush init

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/machvec/pci_bus_cvlink.c
    Couple of checks for kmalloc <= 0 were fixed
    Some __init and static fixes

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/kernel/irq.c
    Need to get the cpu from the passed in pcibr struct
    Made the interrupt list static and gave it a better name - credit jes
    Some lindent'isms
    Took out some code that isn't used ..... yet

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/sn2/pcibr/pcibr_intr.c
    Kill pcibr_intr_func()

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/kernel/setup.c

    If generic enabled legacy VGA or kbd - disable them
    Slightly different check for work arounds and only do it once
    If there is no klconfig info and we are in the simulator - ignore it
    Update the pxm_to_nasid() routine. It failed for SP configurations and some
    SMP configurations where M-bricks used pxm numbers lower that the first
    c-brick.
    If we don't find the cpu for pxm, search the memblks for it.

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/sn2/ml_iograph.c
    Better code for early_probe_for_widget()

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/sn2/pcibr/pcibr_ate.c
    check for pcibr_invalidate_ate 0 used for debugging

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/platform_init/sgi_io_init.c
   use numionodes instead of numnodes

arch/ia64/sn/io/sn2/klconflib.c
    find_lboard changes - generalized a number of the interface funcs

arch/ia64/sn/io/sn2/klgraph.c
    call the more general find_lboard funcs

arch/ia64/sn/io/sn2/ml_iograph.c
    call the more general lboard funcs

arch/ia64/sn/io/sn2/module.c
    lboard changes
    mod for headless/memless nodes

arch/ia64/sn/io/sn2/pcibr/pcibr_dvr.c
    isIO9 mod

arch/ia64/sn/kernel/setup.c
    headless/memless mod

include/asm-ia64/sn/klconfig.h
    generalized find_lboard funs

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/machvec/pci_dma.c
    Add MINIMAL_ATE_FLAGS() macro usage

include/asm-ia64/sn/pci/pcibr.h
    Add MINIMAL_ATE_FLAG() macro

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/sn2/pcibr/pcibr_dvr.c
    extern for pcibr_rrb_alloc_more()

include/asm-ia64/sn/pci/pcibr_private.h
    more unsigned to unsigned int

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/io.c@1.12
    misc code cleanup
    no parens on returns
    remove __psunsigned_t

arch/ia64/sn/io/sn2/ml_iograph.c@1.18
    no parens on returns

arch/ia64/sn/io/sn2/pcibr/pcibr_dvr.c@1.25
    no parens on returns
    use -errno

arch/ia64/sn/io/sn2/pcibr/pcibr_hints.c@1.8
    no parens on returns

arch/ia64/sn/io/sn2/pcibr/pcibr_intr.c@1.15
    no parens on returns
    unsigned to unsigned int

arch/ia64/sn/io/sn2/pcibr/pcibr_rrb.c@1.13
    no parens on returns
    use -errno

arch/ia64/sn/io/sn2/pcibr/pcibr_slot.c@1.18
    no parens on returns
    use -errno

arch/ia64/sn/io/sn2/pciio.c@1.14
    oom handling
    removed ASSERT and funcs not needed

arch/ia64/sn/io/sn2/pic.c@1.13
    use -errno

arch/ia64/sn/io/sn2/shuberror.c@1.12
    add delay.h

arch/ia64/sn/io/sn2/xbow.c@1.10
    include file clean up

arch/ia64/sn/io/sn2/xtalk.c@1.9
    misc code cleanup
    no parens on returns

arch/ia64/sn/io/xswitch.c@1.11
    misc code cleanup

arch/ia64/sn/kernel/bte.c@1.5
    include file clean up

arch/ia64/sn/kernel/mca.c@1.8
    include file clean up

arch/ia64/sn/kernel/probe.c@1.5
    include file clean up

arch/ia64/sn/kernel/sn2/prominfo_proc.c@1.3
    include file clean up

arch/ia64/sn/kernel/sn2/sn2_smp.c@1.9
    include file clean up

arch/ia64/sn/kernel/sn2/sn_proc_fs.c@1.4
    include file clean up

drivers/char/sn_serial.c@1.3
    include file clean up

include/asm-ia64/sn/addrs.h@1.8
    include file clean up
    remove __psunsigned_t

include/asm-ia64/sn/alenlist.h@1.8
    unsigned to unsigned int

include/asm-ia64/sn/arch.h@1.7
    include file clean up

include/asm-ia64/sn/bte.h@1.6
    include file clean up

include/asm-ia64/sn/clksupport.h@1.8
    include file clean up

include/asm-ia64/sn/driver.h@1.5
    remove __psunsigned_t

include/asm-ia64/sn/hcl.h@1.13
    include file clean up

include/asm-ia64/sn/hcl_util.h@1.7
    include file clean up

include/asm-ia64/sn/hwgfs.h@1.5
    include file clean up

include/asm-ia64/sn/iograph.h@1.9
    include file clean up

include/asm-ia64/sn/klconfig.h@1.14
    remove __psunsigned_t

include/asm-ia64/sn/kldir.h@1.5
    remove __psunsigned_t
    include file clean up

include/asm-ia64/sn/module.h@1.12
    include file clean up

include/asm-ia64/sn/nodepda.h@1.14
    include file clean up

include/asm-ia64/sn/pci/bridge.h@1.13
    uchar_t to unsigned char

include/asm-ia64/sn/pci/pcibr_private.h@1.20
    move PVnnnnnn's

include/asm-ia64/sn/pci/pciio.h@1.14
    unsigned to unsigned int

include/asm-ia64/sn/pci/pciio_private.h@1.10
    unsigned to unsigned int

include/asm-ia64/sn/pda.h@1.9
    include file clean up

include/asm-ia64/sn/pio.h@1.7
    include file clean up
    ulong to unsigned long

include/asm-ia64/sn/sgi.h@1.11
    include file clean up
    move PVnnnnnn's to here

include/asm-ia64/sn/sn2/arch.h@1.6
    include file clean up

include/asm-ia64/sn/sn2/sn_private.h@1.12
    include file clean up
    remove __psunsigned_t

include/asm-ia64/sn/sn_cpuid.h@1.8
    include file clean up

include/asm-ia64/sn/sn_private.h@1.6
    include file clean up

include/asm-ia64/sn/types.h@1.6
    include file clean up
    remove __psunsigned_t

include/asm-ia64/sn/vector.h@1.6
    include file clean up

include/asm-ia64/sn/xtalk/xbow.h@1.9
    include file clean up
    misc code cleanup

include/asm-ia64/sn/xtalk/xtalk.h@1.12
    unsigned to unsigned int

include/asm-ia64/sn/xtalk/xwidget.h@1.8
    unsigned to unsigned int

From: Pat Gefre <pfg@sgi.com>

arch/ia64/sn/io/machvec/pci_bus_cvlink.c
    Changes for new pcireg_ interfaces
    pcibr reorg
    Some code cleanup/reorg

arch/ia64/sn/io/machvec/pci_dma.c
    IS_PCIA64() not needed

arch/ia64/sn/io/sn2/ml_iograph.c
    new pcireg_ interface

arch/ia64/sn/io/sn2/pcibr/pcibr_ate.c
    code reorg/clean up

arch/ia64/sn/io/sn2/pcibr/pcibr_config.c
    code reorg/cleanup

arch/ia64/sn/io/sn2/pcibr/pcibr_dvr.c
    reorg/cleanup

arch/ia64/sn/io/sn2/pcibr/pcibr_error.c
    reorg/cleanup

arch/ia64/sn/io/sn2/pcibr/pcibr_intr.c
    reorg/cleanup

arch/ia64/sn/io/sn2/pcibr/pcibr_reg.c
    Fixed the interface to these functions - one call/data type

arch/ia64/sn/io/sn2/pcibr/pcibr_rrb.c
    reorg/cleanup

arch/ia64/sn/io/sn2/pcibr/pcibr_slot.c
    reorg/cleanup

arch/ia64/sn/io/sn2/pciio.c
    removed unused functions

arch/ia64/sn/io/sn2/pic.c
    reorg/cleanup

arch/ia64/sn/kernel/irq.c
    IS_PIC_SOFT not needed
    mod for new pcireg_ interfaces

include/asm-ia64/sn/module.h
    nodes/geoid[] -> MAX_SLABS

include/asm-ia64/sn/pci/bridge.h
    IS_[X]BRIDGE not needed

include/asm-ia64/sn/pci/pci_bus_cvlink.h
    SET_PCIA64 and IS_PCIA64 not needed
    isa64, dma_buf_sync, xbow_buf_sync gone

include/asm-ia64/sn/pci/pcibr.h
    mostly cleanup
    some reorg mods

include/asm-ia64/sn/pci/pcibr_private.h
    some reorg code
    protos for new pcireg_ interfaces

include/asm-ia64/sn/pci/pciio.h
    cleanup

include/asm-ia64/sn/pci/pic.h
    cleanup

include/asm-ia64/sn/sn2/intr.h
    changed IA64_SN2_FIRST_DEVICE_VECTOR and IA64_SN2_LAST_DEVICE_VECTOR