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authorPaul Mundt <lethal@linux-sh.org>2010-04-15 06:13:52 +0200
committerPaul Mundt <lethal@linux-sh.org>2010-04-15 06:13:52 +0200
commitdc825b17904a06bbd2f79d720b23156e4c01a22f (patch)
tree8f1e13b850a06264530f1f1bb680a541e73cef34 /Documentation/blackfin
parentsh: Disable IRQ balancing for timer and IPI IRQs. (diff)
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sh: intc: IRQ auto-distribution support.
This implements support for hardware-managed IRQ balancing as implemented by SH-X3 cores (presently only hooked up for SH7786, but can probably be carried over to other SH-X3 cores, too). CPUs need to specify their distribution register along with the mask definitions, as these follow the same format. Peripheral IRQs that don't opt out of balancing will be automatically distributed at the whim of the hardware block, while each CPU needs to verify whether it is handling the IRQ or not, especially before clearing the mask. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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