# Copyright 2019 Google, Inc.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
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# neither the name of the copyright holders nor the names of its
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# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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from m5.params import Port, VectorPort

INT_SOURCE_ROLE = 'Int Source Pin'
INT_SINK_ROLE = 'Int Sink Pin'
Port.compat(INT_SOURCE_ROLE, INT_SINK_ROLE)

# A source pin generally represents a single pin which might connect to
# multiple sinks.
class IntSourcePin(VectorPort):
    def __init__(self, desc):
        super().__init__(INT_SOURCE_ROLE, desc, is_source=True)

# Each "physical" pin can be driven by a single source pin since there are no
# provisions for resolving competing signals running to the same pin.
class IntSinkPin(Port):
    def __init__(self, desc):
        super().__init__(INT_SINK_ROLE, desc)

# A vector of sink pins represents a bank of physical pins. For instance, an
# interrupt controller with many numbered input interrupts could represent them
# as a VectorIntSinkPin.
class VectorIntSinkPin(VectorPort):
    def __init__(self, desc):
        super().__init__(INT_SINK_ROLE, desc)

@@ -1853,16 +1853,622 @@
 =True)%0A%0A
+# A vector of source pins which might represent a bank of physical pins. Unlike%0A# IntSourcePin, each source pin in VectorIntSourcePin can only connect to a%0A# single sink pin. VectorIntSourcePin has the same definition as IntSourcePin%0A# right now, but will likely be implemented differently in the future.%0A# VectorIntSourcePin is defined as its own separate type to differentiate it%0A# from IntSourcePin and make it clear to the user how it should be interpreted%0A# and used.%0Aclass VectorIntSourcePin(VectorPort):%0A    def __init__(self, desc):%0A        super().__init__(INT_SOURCE_ROLE, desc, is_source=True)%0A%0A
 # Each %22

define VectorIntSourcePin type