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This switches to using irq_alloc_desc() directly for subgroup IRQs.
We still need to call activate_irq() on these in order to make them
requestable, at least up until these get moved in to their own irq
domain..
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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SH intc has a compile time dependency on NR_IRQS. Make this dependency a
local define so that shmobile (and ARM in general) can have run-time
NR_IRQS setting.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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This is exporting symbols and will fail to build once we remove
the implicit presence of module.h
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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The radix tree retry logic got a bit of an overhaul and subsequently
broke the virtual IRQ subgroup build. Simply switch over to
radix_tree_deref_retry() as per the filemap changes, which the virq
lookup logic was modelled after in the first place.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This splits up the sh intc core in to something more vaguely resembling
a subsystem. Most of the functionality was alread fairly well
compartmentalized, and there were only a handful of interdependencies
that needed to be resolved in the process.
This also serves as future-proofing for the genirq and sparseirq rework,
which will make some of the split out functionality wholly generic,
allowing things to be killed off in place with minimal migration pain.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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