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config: Use null memory for DRAM sweep script

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Do not waste time when we do not care about the data.
This commit is contained in:
Andreas Hansson 2015-05-15 13:38:46 -04:00
parent 20978ee697
commit a45c9508ea
1 changed files with 6 additions and 0 deletions
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6
configs/dram/sweep.py
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@ -93,6 +93,9 @@ system.clk_domain = SrcClockDomain(clock = '1.5GHz',
mem_range = AddrRange('256MB') mem_range = AddrRange('256MB')
system.mem_ranges = [mem_range] system.mem_ranges = [mem_range]
# do not worry about reserving space for the backing store
mmap_using_noreserve = True
# force a single channel to match the assumptions in the DRAM traffic # force a single channel to match the assumptions in the DRAM traffic
# generator # generator
options.mem_channels = 1 options.mem_channels = 1
@ -104,6 +107,9 @@ MemConfig.config_mem(options, system)
if not isinstance(system.mem_ctrls[0], m5.objects.DRAMCtrl): if not isinstance(system.mem_ctrls[0], m5.objects.DRAMCtrl):
fatal("This script assumes the memory is a DRAMCtrl subclass") fatal("This script assumes the memory is a DRAMCtrl subclass")
# there is no point slowing things down by saving any data
system.mem_ctrls[0].null = True
# Set the address mapping based on input argument # Set the address mapping based on input argument
# Default to RoRaBaCoCh # Default to RoRaBaCoCh
if options.addr_map == 0: if options.addr_map == 0: