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由 Cédric Le Goater 提交于
The Processor Identification Register (PIR) is a register that holds a processor identifier which is used for bus transactions (XSCOM) and for processor differentiation in multiprocessor systems. It also used in the interrupt vector entries (IVE) to identify the thread serving the interrupts. P9 and P8 have some differences in the CPU PIR encoding. Signed-off-by: NCédric Le Goater <clg@kaod.org> Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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