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# Copyright (c) 2022 The Regents of the University of California
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from m5.params import *
from m5.proxy import *
from m5.objects.MemCtrl import *
# HBMCtrl manages two pseudo channels of HBM2
class HBMCtrl(MemCtrl):
type = "HBMCtrl"
cxx_header = "mem/hbm_ctrl.hh"
cxx_class = "gem5::memory::HBMCtrl"
# HBMCtrl uses the SimpleMemCtlr's interface
# `dram` as the first pseudo channel, the second
# pseudo channel interface is following
# HBMCtrl has been tested with two HBM_2000_4H_1x64 interfaces
dram_2 = Param.DRAMInterface("DRAM memory interface")
# For mixed traffic, HBMCtrl with HBM_2000_4H_1x64 interfaaces
# gives the best results with following min_r/w_per_switch
min_reads_per_switch = 64
min_writes_per_switch = 64