linux.git/arch/ppc/kernel/smp.c, branch master

powerpc: Remove arch/ppc and include/asm-ppc

2008-06-10T11:40:22+00:00

All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.

Acked-by: Adrian Bunk 
Acked-by: Arnd Bergmann 
Acked-by: Becky Bruce 
Acked-by: Benjamin Herrenschmidt 
Acked-by: Geert Uytterhoeven 
Acked-by: Grant Likely 
Acked-by: Jochen Friedrich 
Acked-by: John Linn 
Acked-by: Jon Loeliger 
Acked-by: Josh Boyer 
Acked-by: Kumar Gala 
Acked-by: Olof Johansson 
Acked-by: Peter Korsgaard 
Acked-by: Scott Wood 
Acked-by: Sean MacLennan 
Acked-by: Segher Boessenkool 
Acked-by: Stefan Roese 
Acked-by: Stephen Neuendorffer 
Acked-by: Wolfgang Denk 
Signed-off-by: Paul Mackerras

header cleaning: don't include smp_lock.h when not used

2007-05-08T18:15:07+00:00

Remove includes of  where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[POWERPC] ARCH=ppc pt_regs fixes

2006-10-10T01:55:25+00:00

Signed-off-by: Al Viro 
Signed-off-by: Paul Mackerras

Remove obsolete #include

2006-06-30T17:25:36+00:00

Signed-off-by: Jörn Engel 
Signed-off-by: Adrian Bunk

[PATCH] for_each_possible_cpu: ppc

2006-03-29T02:44:16+00:00

for_each_cpu() actually iterates across all possible CPUs.  We've had mistakes
in the past where people were using for_each_cpu() where they should have been
iterating across only online or present CPUs.  This is inefficient and
possibly buggy.

We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the
future.

This patch replaces for_each_cpu with for_each_possible_cpu.

Signed-off-by: KAMEZAWA Hiroyuki 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[PATCH] powerpc: task_thread_info()

2006-01-12T17:08:57+00:00

Signed-off-by: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ppc32: set smp_tb_synchronized on UP with SMP kernel

2005-12-12T03:26:39+00:00

ppc32 kernel, when built with CONFIG_SMP and booted on a single CPU
machine, will not properly set smp_tb_synchronized, thus causing
gettimeofday() to not use the HW timebase and to be limited to jiffy
resolution.  This, among others, causes unacceptable pauses when launching
X.org.

Signed-Off-By: Johannes Berg 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[PATCH] sched: disable preempt in idle tasks

2005-11-09T15:56:33+00:00

Run idle threads with preempt disabled.

Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()).
How did it ever work before?

Might fix the CPU hotplugging hang which Nigel Cunningham noted.

We think the bug hits if the idle thread is preempted after checking
need_resched() and before going to sleep, then the CPU offlined.

After calling stop_machine_run, the CPU eventually returns from preemption and
into the idle thread and goes to sleep.  The CPU will continue executing
previous idle and have no chance to call play_dead.

By disabling preemption until we are ready to explicitly schedule, this bug is
fixed and the idle threads generally become more robust.

From: alexs 

  PPC build fix

From: Yoichi Yuasa 

  MIPS build fix

Signed-off-by: Nick Piggin 
Signed-off-by: Yoichi Yuasa 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ppc: Minor smp changes for consistency with ppc64

2005-10-19T11:44:51+00:00

This makes platform code use the smp_ops variable directly instead
of ppc_md.smp_ops, removes the two unused `data' and `wait' arguments
from the *_message_pass() functions, and removes the call to the
never-implemented smp_ops->space_timers() function.

Signed-off-by: Paul Mackerras

powerpc: Make some #includes explicit.

2005-10-10T04:14:55+00:00

In preparation for merging processor.h, this adds some explicit
but won't be after the merge.

Signed-off-by: Paul Mackerras