src/arch/arm/fastmodel/FastModel.py

   1 # Copyright 2019 Google, Inc.
   2 #
   3 # Redistribution and use in source and binary forms, with or without
   4 # modification, are permitted provided that the following conditions are
   5 # met: redistributions of source code must retain the above copyright
   6 # notice, this list of conditions and the following disclaimer;
   7 # redistributions in binary form must reproduce the above copyright
   8 # notice, this list of conditions and the following disclaimer in the
   9 # documentation and/or other materials provided with the distribution;
  10 # neither the name of the copyright holders nor the names of its
  11 # contributors may be used to endorse or promote products derived from
  12 # this software without specific prior written permission.
  13 #
  14 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  15 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  16 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  17 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  18 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  19 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  20 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25 #
  26 # Authors: Gabe Black
  27
  28 from m5.params import *
  29 from m5.proxy import *
  30
  31 from m5.objects.SystemC import SystemC_ScModule
  32 from m5.objects.Tlm import TlmInitiatorSocket, TlmTargetSocket
  33
  34 def AMBA_TARGET_ROLE(width):
  35     return 'AMBA TARGET %d' % width
  36
  37 def AMBA_INITIATOR_ROLE(width):
  38     return 'AMBA INITIATOR %d' % width
  39
  40 def SC_MASTER_PORT_ROLE(port_type):
  41     return 'SC MASTER PORT for %s' % port_type
  42
  43 def SC_SLAVE_PORT_ROLE(port_type):
  44     return 'SC SLAVE PORT for %s' % port_type
  45
  46 class AmbaTargetSocket(Port):
  47     def __init__(self, width, desc):
  48         my_role = AMBA_INITIATOR_ROLE(width)
  49         peer_role = AMBA_TARGET_ROLE(width)
  50         Port.compat(my_role, peer_role)
  51
  52         super(AmbaTargetSocket, self).__init__(my_role, desc)
  53
  54 class VectorAmbaTargetSocket(VectorPort):
  55     def __init__(self, width, desc):
  56         my_role = AMBA_INITIATOR_ROLE(width)
  57         peer_role = AMBA_TARGET_ROLE(width)
  58         Port.compat(my_role, peer_role)
  59
  60         super(VectorAmbaTargetSocket, self).__init__(my_role, desc)
  61
  62 class AmbaInitiatorSocket(Port):
  63     def __init__(self, width, desc):
  64         my_role = AMBA_TARGET_ROLE(width)
  65         peer_role = AMBA_INITIATOR_ROLE(width)
  66         Port.compat(my_role, peer_role)
  67
  68         super(AmbaInitiatorSocket, self).__init__(
  69                 my_role, desc, is_source=True)
  70
  71 class VectorAmbaInitiatorSocket(VectorPort):
  72     def __init__(self, width, desc):
  73         my_role = AMBA_TARGET_ROLE(width)
  74         peer_role = AMBA_INITIATOR_ROLE(width)
  75         Port.compat(my_role, peer_role)
  76
  77         super(VectorAmbaInitiatorSocket, self).__init__(
  78                 my_role, desc, is_source=True)
  79
  80 class ScMasterPort(Port):
  81     def __init__(self, desc, port_type):
  82         my_role = SC_MASTER_PORT_ROLE(port_type)
  83         peer_role = SC_SLAVE_PORT_ROLE(port_type)
  84         Port.compat(my_role, peer_role)
  85
  86         super(ScMasterPort, self).__init__(my_role, desc)
  87
  88 class ScSlavePort(Port):
  89     def __init__(self, desc, port_type):
  90         my_role = SC_SLAVE_PORT_ROLE(port_type)
  91         peer_role = SC_MASTER_PORT_ROLE(port_type)
  92         Port.compat(my_role, peer_role)
  93
  94         super(ScSlavePort, self).__init__(my_role, desc)
  95
  96 class AmbaToTlmBridge64(SystemC_ScModule):
  97     type = 'AmbaToTlmBridge64'
  98     cxx_class = 'FastModel::AmbaToTlmBridge64'
  99     cxx_header = 'arch/arm/fastmodel/amba_to_tlm_bridge.hh'
 100
 101     amba = AmbaTargetSocket(64, 'AMBA PV target socket')
 102     tlm = TlmInitiatorSocket(64, 'TLM initiator socket')
 103
 104 class AmbaFromTlmBridge64(SystemC_ScModule):
 105     type = 'AmbaFromTlmBridge64'
 106     cxx_class = 'FastModel::AmbaFromTlmBridge64'
 107     cxx_header = 'arch/arm/fastmodel/amba_from_tlm_bridge.hh'
 108
 109     tlm = TlmTargetSocket(64, 'TLM target socket')
 110     amba = AmbaInitiatorSocket(64, 'AMBA PV initiator socket')