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* powerpc/mpic_msgr: fix offset error when setting mer registerMingkai Hu2012-04-19
| | | | | Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/mpic_msgr: add lock for MPIC message global variableMingkai Hu2012-04-19
| | | | | | | | | Also fix issue of accessing invalid msgr pointer issue. The local msgr pointer in fucntion mpic_msgr_get will be accessed before getting a valid address which will cause kernel crash. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: add support for MPIC message register APIJia Hongtao2012-03-16
Some MPIC implementations contain one or more blocks of message registers that are used to send messages between cores via IPIs. A simple API has been added to access (get/put, read, write, etc ...) these message registers. The available message registers are initially discovered via nodes in the device tree. A separate commit contains a binding for the message register nodes. Signed-off-by: Meador Inge <meador_inge@mentor.com> Signed-off-by: Jia Hongtao <B38951@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>