The "DART" iommu used on Apple U3 chipset will appear into 3rd party
products soon, thus the code shouldn't be named "pmac_*" anymore.

Also, the explicit config option is no longer needed, there is no
reason to build a PowerMac kernel without the iommu support, and
it can always be disabled at runtime with a cmdline option for
testing or debugging.

This patch do the appropriate renaming and makes the config option
implicit & selected when pmac support is included.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-ppc64/systemcfg.h defines a structure that currently gets
exposed to userland via /proc, and which I intend to deprecate in the
near future once I have better alternatives available.

In the meantime, this patch removes a bunch of stuff from this file that
were only defined for non-__KERNEL__, like an inline function for
getting to that struture via /proc, and some CPU & platform type
definitions that were duplicates of the ones in asm-ppc64/processor.h.
These things have nothing to do in a kernel header.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

A small spelling error slipped into a new ppc_md. platform call I added
in my last patch. Not very problematic but worth fixing before any code
using the new call gets pushed.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

There appears to be one case missing from the wait_event() family - the
uninterruptible timeout wait.  The following patch adds this.

This wait is particularly useful when (eg) you wish to pass work off to an
interrupt handler to perform, but also want to know if the hardware has
decided to go gaga under you.  You don't want to sit around waiting for
something that'll never happen - you want to go and wack the gremlin which
caused the failure and retry.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This should allow sys_rtas to work again on PPC64 pSeries.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This fixes the bug that made the card DMA lots of data to random memory
locations, causing lockups and instant reboots. 

The problem was that the yoffset variable got modified inside the loop,
but the logic in the switch statement was meant to work on the initial
value of the yoffset variable.

(Bug fix extracted from
http://marc.theaimsgroup.com/?l=linux-kernel&m=109532814823565&w=2)
Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Agh !

I had two patches, a broken one and a good one and ... of course I sent
the broken one, sorry :(

This fixes the broken fix.
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

to be linked unconditionally.

The current 32 bits translation of the SI_TIMER is wrong on ppc64, causing
the tst-timer4 testcase of glibc to fail in 32 bits. This patch fixes it.
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The "blocked_list" used for POSIX deadlock detection should only contain
POSIX locks, or posix_locks_deadlock() can get confused.

As I've noted before (but never posted a patch), we should probably stop
checking for deadlock.  POSIX says it's optional for an implementation
to check for deadlock, and since the change to match on tgid, we can
report a deadlock when none exists.

[ Further explanation for Linus: POSIX locks and BSD locks don't block
  each other, so checking that the blocker is a POSIX lock also implies
  that the waiter is a POSIX lock. ]

We need to convert from bytes to blocks, and we also need to
handle the fact that old smbd's will round up the disk usage
bytecount to even multiples of 1MB, and gracefully fall back 
on an estimate based on the file size instead in that case.

Acked by Samuel Thibault who noted the problem in the first
place, and Jeremy Allison wrt smbd behavior.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into kanga.twiddle.home:/home/rth/work/linux/axp-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

The recent addition of linux/bitops.h inside linux/kernel.h has
created a circular dependency:

asm/system.h -> linux/kernel.h -> linux/bitops.h -> asm/bitops.h
 -> asm/system.h

which results in an unbuildable kernel.  We appear not to need
linux/kernel.h in asm/system.h, but do need linux/linkage.h, so
make this the case.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

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

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

Else we risk an OOPS.
Signed-off-by: David S. Miller <davem@davemloft.net>

Otherwise modules that get loaded dynamically will not be able
to resolve the iomap functions, if no built-in drivers caused
it to be linked in at compile-time.

It missed the new vmlinux.strip file.

 # CONFIG_PCI is not set
 CONFIG_EISA=y

drivers/net/3c59x.c: In function `vortex_ioctl':
drivers/net/3c59x.c:2916: warning: dereferencing `void *' pointer
drivers/net/3c59x.c:2916: error: request for member `current_state' in something not a structure or union
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Quiet mmtimer on non-SGI boxes (previously it printed "mmtimer: unable to
determine clock frequency").
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Doug Dumitru <doug@easyco.com>

I have been fighting a buffering error when sending large amounts of data out
pty devices from UML.  I have tried a couple of patches that did not really
fix the problem (and were rightly rejected by the group), but have finally
found the real bug.

In /arch/um/drivers/line.c there is a function "buffer_data" that is
responsible for storing data into the lines ring buffer.  The function is
"supposed" to return the number of characters actually buffered.
Unfortunately, in the case where the buffer wraps, the "len" variable is
decremented by "end" before it is used as the return parameter.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Make sure we print ERRNO and not always -1.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Simple corrections to some error messages, which list wrong limits for UBD
devices and such.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Output a nice error message for people who need mem > 256M but don't increase
on the host /proc/sys/vm/max_map_count, telling them to do so.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: "D.  Bahi" @ enterasys.com - remove an unneeded line from the dynamic
linker script.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This makes UML load at 0x8048000 rather than 0xa0000000 when CONFIG_MODE_SKAS
is on and CONFIG_MODE_TT is off.  This will make it more valgrind-friendly,
and also allow much greater physical memory sizes without needing to use
highmem.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

__wrap_free is now careful about freeing to the same allocator that allocated
the buffer.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Tidied up some whitespace in arch/um/Makefile.  Added -DUM_FASTCALL to
Makefile-i386.  make clean descends into util in order to get rid of the
binaries there.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/uml.lds.S has already been moved to arch/um/kernel. dyn.lds.S has just
been forgotten, so fix this.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Unconditionally enabling interrupts is upsetting the ACPI time resume code.
Signed-off-by: Li Shaohua <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>