util/cpt_upgraders/arm-gicv2-banked-regs.py

# Copyright (c) 2016 ARM Limited
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# duplicate banked registers into new per-cpu arrays.
def upgrader(cpt):
    if cpt.get("root", "isa", fallback="") == "arm":
        for sec in cpt.sections():
            import re

            if not re.search("\.gic$", sec):
                continue
            cpuEnabled = cpt.get(sec, "cpuEnabled").split()

            intEnabled = cpt.get(sec, "intEnabled").split()
            pendingInt = cpt.get(sec, "pendingInt").split()
            activeInt = cpt.get(sec, "activeInt").split()
            intPriority = cpt.get(sec, "intPriority").split()
            cpuTarget = cpt.get(sec, "cpuTarget").split()

            b_intEnabled = intEnabled[0]
            b_pendingInt = pendingInt[0]
            b_activeInt = activeInt[0]

            del intEnabled[0]
            del pendingInt[0]
            del activeInt[0]
            del intPriority[0:32]  # unused; overlapped with bankedIntPriority
            del cpuTarget[0:32]

            cpt.set(sec, "intEnabled", " ".join(intEnabled))
            cpt.set(sec, "pendingInt", " ".join(pendingInt))
            cpt.set(sec, "activeInt", " ".join(activeInt))
            cpt.set(sec, "intPriority", " ".join(intPriority))
            cpt.set(sec, "cpuTarget", " ".join(cpuTarget))

            b_intPriority = cpt.get(sec, "*bankedIntPriority").split()
            cpt.remove_option(sec, "*bankedIntPriority")

            for cpu in range(255):
                if cpuEnabled[cpu] == "true":
                    intPriority = b_intPriority[cpu * 32 : (cpu + 1) * 32]
                    new_sec = "%s.bankedRegs%u" % (sec, cpu)
                    cpt.add_section(new_sec)
                    cpt.set(new_sec, "intEnabled", b_intEnabled)
                    cpt.set(new_sec, "pendingInt", b_pendingInt)
                    cpt.set(new_sec, "activeInt", b_activeInt)
                    cpt.set(new_sec, "intPriority", " ".join(intPriority))