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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-07-21 09:55:21 +1000
committerPaul Mackerras <paulus@samba.org>2007-07-22 21:30:59 +1000
commit7fd7218610600b16f6f0af3f9d9353ba0265c09f (patch)
tree7067d2c4fbe7e252913bc2440a7ebc6aa223f2f2 /drivers/pcmcia
parent34f329db54e8154cf7faf0e7c45e7c16facfbbfe (diff)
[POWERPC] MPIC protected sources
Some HW platforms, such as the new cell blades, requires some MPIC sources to be left alone by the operating system. This implements support for a "protected-sources" property in the mpic controller node containing a list of source numbers to be protected against operating system interference. For those interested in the gory details, the MPIC on the southbridge of those blades has some of the processor outputs routed to the cell, and at least one routed as a GPIO to the service processor. It will be used in the GA product for routing some of the southbridge error interrupts to the service processor which implements some of the RAS stuff, such as checkstopping when fatal errors occurs before they can propagate. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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