# Copyright (c) 2015 Advanced Micro Devices, Inc.
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#
# For use for simulation and test purposes only
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# this list of conditions and the following disclaimer.
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from m5.params import *
from m5.proxy import *

from m5.objects.Sequencer import *

class RubyGPUCoalescer(RubyPort):
   type = 'RubyGPUCoalescer'
   abstract = True
   cxx_class = 'gem5::ruby::GPUCoalescer'
   cxx_header = "mem/ruby/system/GPUCoalescer.hh"

   # max_outstanding_requests = (wave front slots) x (wave front size)
   max_outstanding_requests = Param.Int(40*64,
                                "max requests (incl. prefetches) outstanding")
   max_coalesces_per_cycle = Param.Int(1, "max instructions that can be " \
                                "coalesced in a single cycle")

   icache = Param.RubyCache("")
   dcache = Param.RubyCache("")
   deadlock_threshold = Param.Cycles(500000,
       "max outstanding cycles for a request before " \
       "deadlock/livelock declared")
   garnet_standalone = Param.Bool(False, "")

   gmTokenPort = ResponsePort("Port to the CU for sharing tokens")