src/mem/ruby/system/GPUCoalescer.py

   1 # Copyright (c) 2015 Advanced Micro Devices, Inc.
   2 # All rights reserved.
   3 #
   4 # For use for simulation and test purposes only
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   9 # 1. Redistributions of source code must retain the above copyright notice,
  10 # this list of conditions and the following disclaimer.
  11 #
  12 # 2. Redistributions in binary form must reproduce the above copyright notice,
  13 # this list of conditions and the following disclaimer in the documentation
  14 # and/or other materials provided with the distribution.
  15 #
  16 # 3. Neither the name of the copyright holder nor the names of its
  17 # contributors may be used to endorse or promote products derived from this
  18 # software without specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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  30 # POSSIBILITY OF SUCH DAMAGE.
  31
  32 from m5.params import *
  33 from m5.proxy import *
  34
  35 from m5.objects.Sequencer import *
  36
  37 class RubyGPUCoalescer(RubyPort):
  38    type = 'RubyGPUCoalescer'
  39    abstract = True
  40    cxx_class = 'GPUCoalescer'
  41    cxx_header = "mem/ruby/system/GPUCoalescer.hh"
  42
  43    # max_outstanding_requests = (wave front slots) x (wave front size)
  44    max_outstanding_requests = Param.Int(40*64,
  45                                 "max requests (incl. prefetches) outstanding")
  46    max_coalesces_per_cycle = Param.Int(1, "max instructions that can be " \
  47                                 "coalesced in a single cycle")
  48
  49    icache = Param.RubyCache("")
  50    dcache = Param.RubyCache("")
  51    deadlock_threshold = Param.Cycles(500000,
  52        "max outstanding cycles for a request before " \
  53        "deadlock/livelock declared")
  54    garnet_standalone = Param.Bool(False, "")
  55
  56    gmTokenPort = SlavePort("Port to the CU for sharing tokens")