Now that we understand (and have fixed) the problem with using low power mode
in the idle loop, lets enable it.  It should save a fair amount of power.

(The problem was that our exceptions were inheriting the low power mode and so
were executing at a fraction of the normal cpu issue rate.  We fixed it by
always bumping our priority to medium at the start of every exception).
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Restore the smt-enabled=off kernel command line functionality:

- Remove the SMT_DYNAMIC state now that smt_snooze_delay allows for the
  same thing.
- Remove the early prom.c parsing for the option, put it into an
  early_param instead.
- In setup_cpu_maps honour the smt-enabled setting

Note to Nathan: In order to allow cpu hotplug add of secondary threads after
booting with smt-enabled=off, I had to initialise cpu_present_map to
cpu_online_map in smp_cpus_done.  Im not sure how you want to handle this but
it seems our present map currently does not allow cpus to be added into the
partition that werent there at boot (but were in the possible map).
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Make use of Rusty's early_param code. Its good stuff.

We appear to be the first user :)

Move vpa_init and idle_setup later in boot, we dont have to do them
right up front in setup_system.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

We have had reports of people attempting to disable EEH on POWER5 boxes.  This
is not supported, and the device will most likely not respond to config space
reads/writes.  Remove the IBM location matching code that was being used to
disable devices as well as the global option.

We already have the ability to ignore EEH erros via the panic_on_oops sysctl
option, advanced users should make use of that instead.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- Remove ppc64_calibrate_delay, no longer used
- Formatting fixups
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Clean up some of our command line code:

- We were copying the command line out of the device tree twice, but the
  first time we forgot to add CONFIG_CMDLINE. Fix this and remove the
  second copy.
- The command line birec code ran after we had done some command line
  parsing in prom.c. This had the opportunity to really confuse the
  user, with some options being parsed out of the device tree and the
  other out of birecs. Luckily we could find no user of the command
  line birecs, so remove them.
- remove duplicate printing of kernel command line;
- clean up iseries inits and create an iSeries_parse_cmdline.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

On new toolchains we need to use nm --synthetic or we miss code symbols.  Sam,
I'm not thrilled about this patch but Im not sure of an easier way.  Any ideas?
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

From: Alan Modra <amodra@bigpond.net.au>

Give the kernel an OPD section, required for recent ppc64 toolchains.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Plumb the NUMA API syscalls into ppc64.  Also add some missing cond_syscalls
so we still link with NUMA API disabled.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

I've started seeing rtas errors printed twice.  Remove the second call to
printk_log_rtas.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

After the spinlock rework, CONFIG_SPINLINE doesnt work and causes a compile
error.  Remove it for now.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch is the result of running Lindent against
arch/ppc64/kernel/lparcfg.c.

This cleans up an assortment of whitespace and wordwrap inconsistencies.
Signed-off-by: Will Schmidt <willschm@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch corrects how the lparcfg interface was presenting the number of
active and potential processors.  (As reported in LTC bugzilla number 10889).

- Correct output for partition_potential_processors and
  system_active_processors.
- suppress pool related values in scenarios where they do not make
  sense. (non-shared processor configurations)
- Display pool_capacity as a percentage, to match the behavior from
  iSeries code.
Signed-off-by: Will Schmidt <willschm@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Again, found with coverity's checker.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The patch below implements an algorithm to determine an unique GSI override
for mapping GSIs to IO-APIC pins correctly.  GSI overrides are required in
order for ES7000 machines to function properly since IRQ to pin mappings
are NOT all one-to-one.  This patch applies only to the Unisys specific
ES7000 machines and has been tested thoroughly on several models of the
ES7000 line.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

In sched_exec, schedstat_inc will dereference a null pointer if no domain
is found with the SD_BALANCE_EXEC flag set.  This was exposed during
testing of the previous patches where cpus are temporarily attached to a
dummy domain without SD_BALANCE_EXEC set.
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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

Patch from Ben Dooks

Removed resource description left by copying error

Thanks to Klaus Fetscher for pointing this out.

Signed-off-by: Ben Dooks 

Patch from Ben Dooks

Fix inverted mask in s3c2410_gpio_setpin() function,
add s3c2410_modify_misccr() for shared register, and
add s3c2410_gpio_getpin()

Signed-off-by: Ben Dooks 

Patch from Ben Dooks

Fix missed ID change on s3c2410-usb

Signed-off-by: Ben DOoks 

Patch from Ben Dooks

Header file for USB gadget controller (udc) for the
Samsung S3C2410 SoC

Signed-off-by: Herbert Poetzl 
Signed-off-by: Ben Dooks 

Add kapmd thread to provide a process context to handle "APM"
events submitted via apm_queue_event().

Add apm_queue_event(), which can be called from hardware
interrupt handlers and the like, typically to fire off a
suspend.

Move existing APM state definitions into struct apm_power_info,
and add further definitions describing other fields.

Ensure threads waiting for suspend to occur in apm_ioctl are
not woken by the pm_suspend thread freezing - they're already
frozen.

The original version had issues when two suspend events came
in at around the same time, causing APM to get confused:
threads became stuck in APM_IOC_SUSPEND and suspends_pending
incremented on each apm --suspend call.

Now, we only add a suspend event to a users queue and increment
suspends_pending if the user isn't already in the middle of
handling a suspend event.

Convert user_list_lock spinlock to a read/write semaphore;
the spinlock was affording us very little protection.

arch/arm/kernel/apm.c:57:16: warning: dubious one-bit signed bitfield
arch/arm/kernel/apm.c:58:17: warning: dubious one-bit signed bitfield
arch/arm/kernel/apm.c:59:17: warning: dubious one-bit signed bitfield
arch/arm/kernel/apm.c:60:23: warning: dubious one-bit signed bitfield

It seems that most architectures already include linux/device.h in their
own asm/dma-mapping.h.  Most but not all, and some drivers fail to
compile on those architectures that don't.  Since everybody needs it
let's include device.h from one place only and fix compilation for
everybody.

There's a double-free in the isofs filesystem.

Invalidate this pointer so it doesn't get freed twice.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The follow patch special cases the NR_CPUS <= BITS_PER_COMPAT_LONG case.
Without this patch, a 32bit task would be required to have a 64bit
cpumask no matter what value of NR_CPUS are used.

With this patch a compat long sized bitmask is allowed if NR_CPUS is
small enough to fit within it.

Of course applications should be using the glibc wrappers that use an
opaque cpu_mask_t type, but there could be older applications using the
syscalls directly.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Remove the set_fs hack in the compat affinity calls. Create
sched_getaffinity and sched_setaffinity helper functions that both the
native and compat affinity syscalls use.

Also make the compat functions match what the native ones are doing now,
setaffinity calls succeed no matter what length the bitmask is, but
getaffinity calls must pass in bitmasks at least as long as the kernel
type.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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

into agluck-lia64.sc.intel.com:/data/home/aegl/BK/linux-ia64-release-2.6.9

into agluck-lia64.sc.intel.com:/data/home/aegl/BK/linux-ia64-release-2.6.9