linux.git/arch/powerpc/include/asm/mpic.h, branch v3.0

Merge remote branch 'origin/master' into merge

2011-05-20T05:36:52+00:00

Manual merge of arch/powerpc/kernel/smp.c and add missing scheduler_ipi()
call to arch/powerpc/platforms/cell/interrupt.c

Signed-off-by: Benjamin Herrenschmidt

powerpc/mpic: add the mpic global timer support

2011-05-19T06:14:28+00:00

Add support for MPIC timers as requestable interrupt sources.

Based on http://patchwork.ozlabs.org/patch/20941/ by Dave Liu.

Signed-off-by: Dave Liu 
Signed-off-by: Scott Wood 
Signed-off-by: Kumar Gala

powerpc/mpic: parse 4-cell intspec types other than zero

2011-05-19T06:14:27+00:00

Signed-off-by: Scott Wood 
Signed-off-by: Kumar Gala

PM / PowerPC: Use struct syscore_ops instead of sysdevs for PM

2011-05-11T19:37:15+00:00

Make some PowerPC architecture's code use struct syscore_ops
objects for power management instead of sysdev classes and sysdevs.

This simplifies the code and reduces the kernel's memory footprint.
It also is necessary for removing sysdevs from the kernel entirely in
the future.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Greg Kroah-Hartman

powerpc: Make MPIC honor the "pic-no-reset" device tree property

2011-03-21T00:01:32+00:00

This property, defined in the Open PIC binding, tells the kernel not to use
the reset bit in the global configuration register.  Additionally, its
presence mandates that only sources which are actually used (i.e. appear in
the device tree) should have their VECPRI bits initialized.

Although, "pic-no-reset" can be used for the same use cases that
"protected-sources" is covering, the "protected-sources" implementation was
left completely intact.  This is a more pragmatic approach as there are
already several existing systems which use protected sources.  If
"pic-no-reset" *and* "protected-sources" are both used, however, then
"pic-no-reset" takes precedence in terms of the init behavior and the
sanity checks done by protected sources will still take place.

Signed-off-by: Meador Inge 
Cc: Hollis Blanchard 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Benjamin Herrenschmidt

powerpc: mpic irq_data conversion.

2011-03-10T00:03:56+00:00

Signed-off-by: Lennert Buytenhek 
Signed-off-by: Benjamin Herrenschmidt

powerpc/cpumask: Convert mpic driver to new cpumask API

2010-05-06T08:01:46+00:00

Convert to the new cpumask API.

irq_choose_cpu can be simplified by using cpumask_next and cpumask_first.

smp_mpic_message_pass was doing open coded cpumask manipulation and passing an
int for a cpumask into mpic_send_ipi. Since mpic_send_ipi is only used
locally, make it static and convert it to take a cpumask. This allows us
to clean up the mess in smp_mpic_message_pass.

Signed-off-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Convert mpic locks to raw_spinlock

2010-02-19T03:52:32+00:00

mpic_lock, irq_rover_lock and fixup_lock need to be real spinlocks in
RT. Convert them to raw_spinlock.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Add support for CoreInt delivery of interrupts on MPIC

2009-04-06T14:09:14+00:00

CoreInt provides a mechansim to deliver the IRQ vector directly
into the core on an interrupt (via the SPR EPR) rather than having
to go IACK on the PIC.  This is suppose to provide an improvment
in interrupt latency by reducing the time to get the IRQ vector.

Signed-off-by: Kumar Gala

powerpc/mpic: Fix regression caused by change of default IRQ affinity

2008-10-31T05:13:50+00:00

The Freescale implementation of MPIC only allows a single CPU destination
for non-IPI interrupts.  We add a flag to the mpic_init to distinquish
these variants of MPIC.  We pull in the irq_choose_cpu from sparc64 to
select a single CPU as the destination of the interrupt.

This is to deal with the fact that the default smp affinity was
changed by commit 18404756765c713a0be4eb1082920c04822ce588 ("genirq:
Expose default irq affinity mask (take 3)") to be all CPUs.

Signed-off-by: Kumar Gala 
Signed-off-by: Paul Mackerras