powerpc: Enable sparse irq_descs on powerpc

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Defining CONFIG_SPARSE_IRQ enables generic code that gets rid of the
static irq_desc array, and replaces it with an array of pointers to
irq_descs.

It also allows node local allocation of irq_descs, however we
currently don't have the information available to do that, so we just
allocate them on all on node 0.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Michael Ellerman 2009-10-13 19:45:03 +00:00 • committed by Benjamin Herrenschmidt

parent 750ab11291

commit cd01570717

5 changed files with 49 additions and 13 deletions

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13

arch/powerpc/Kconfig

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3

arch/powerpc/include/asm/irq.h

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40

arch/powerpc/kernel/irq.c

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1

arch/powerpc/kernel/ppc_ksyms.c

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5

arch/powerpc/kernel/setup_64.c

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