src/dev/riscv/PlicDevice.py

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from m5.objects.Device import BasicPioDevice
from m5.params import *
from m5.proxy import *
from m5.util.fdthelper import *

class PlicIntDevice(BasicPioDevice):
    type = 'PlicIntDevice'
    cxx_header = 'dev/riscv/plic_device.hh'
    cxx_class = 'gem5::PlicIntDevice'
    abstract = True

    platform = Param.Platform(Parent.any, "Platform")
    pio_size = Param.Addr("PIO Size")
    interrupt_id = Param.Int("PLIC Interrupt ID")

    def generatePlicDeviceNode(self, state, name):
        node = self.generateBasicPioDeviceNode(state, name,
                self.pio_addr, self.pio_size)

        plic = self.platform.unproxy(self).plic

        node.append(FdtPropertyWords("interrupts", [self.interrupt_id]))
        node.append(FdtPropertyWords("interrupt-parent", state.phandle(plic)))
        return node