a9f2e21e08
This is an initial configuration capable of booting Linux and registering a PCI device which registers as an AMD Vega 10 (Frontier Edition) GPU. It it loosely based on the the example/fs.py and gem5 book full system example scripts. The top-level file is meant to be modular such that convenience scripts can be created to set arguments automatically and then call the main run function. This will evolve over time as more full-system GPU components are added and the network topology needed for disjoint address spaces is created for the VIPER protocol. Change-Id: I7002213ca8de5eb73919e49fb11840a688744012 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/44907 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
128 lines
7.2 KiB
Python
128 lines
7.2 KiB
Python
# Copyright (c) 2021 Advanced Micro Devices, Inc.
|
|
# All rights reserved.
|
|
#
|
|
# For use for simulation and test purposes only
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# 1. Redistributions of source code must retain the above copyright notice,
|
|
# this list of conditions and the following disclaimer.
|
|
#
|
|
# 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
# this list of conditions and the following disclaimer in the documentation
|
|
# and/or other materials provided with the distribution.
|
|
#
|
|
# 3. Neither the name of the copyright holder nor the names of its
|
|
# contributors may be used to endorse or promote products derived from this
|
|
# software without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
def addAmdGPUOptions(parser):
|
|
parser.add_argument("-u", "--num-compute-units", type=int, default=4,
|
|
help="number of GPU compute units"),
|
|
parser.add_argument("--num-cp", type=int, default=0,
|
|
help="Number of GPU Command Processors (CP)")
|
|
|
|
# not super important now, but to avoid putting the number 4 everywhere,
|
|
# make it an option/knob
|
|
parser.add_argument("--cu-per-sqc", type=int, default=4,
|
|
help="number of CUs sharing an SQC"
|
|
" (icache, and thus icache TLB)")
|
|
parser.add_argument("--cu-per-scalar-cache", type=int, default=4,
|
|
help="Number of CUs sharing a scalar cache")
|
|
parser.add_argument("--simds-per-cu", type=int, default=4,
|
|
help="SIMD units per CU")
|
|
parser.add_argument("--cu-per-sa", type=int, default=4,
|
|
help="Number of CUs per shader array. This must be a"
|
|
" multiple of options.cu-per-sqc and "
|
|
" options.cu-per-scalar")
|
|
parser.add_argument("--sa-per-complex", type=int, default=1,
|
|
help="Number of shader arrays per complex")
|
|
parser.add_argument("--num-gpu-complexes", type=int, default=1,
|
|
help="Number of GPU complexes")
|
|
parser.add_argument("--wf-size", type=int, default=64,
|
|
help="Wavefront size(in workitems)")
|
|
parser.add_argument("--sp-bypass-path-length", type=int, default=4,
|
|
help="Number of stages of bypass path in vector ALU "
|
|
"for Single Precision ops")
|
|
parser.add_argument("--dp-bypass-path-length", type=int, default=4,
|
|
help="Number of stages of bypass path in vector ALU "
|
|
"for Double Precision ops")
|
|
#issue period per SIMD unit: number of cycles before issuing another vector
|
|
parser.add_argument("--issue-period", type=int, default=4,
|
|
help="Number of cycles per vector instruction issue"
|
|
" period")
|
|
parser.add_argument("--glbmem-wr-bus-width", type=int, default=32,
|
|
help="VGPR to Coalescer (Global Memory) data bus width"
|
|
" in bytes")
|
|
parser.add_argument("--glbmem-rd-bus-width", type=int, default=32,
|
|
help="Coalescer to VGPR (Global Memory) data bus width"
|
|
" in bytes")
|
|
# Currently we only support 1 local memory pipe
|
|
parser.add_argument("--shr-mem-pipes-per-cu", type=int, default=1,
|
|
help="Number of Shared Memory pipelines per CU")
|
|
# Currently we only support 1 global memory pipe
|
|
parser.add_argument("--glb-mem-pipes-per-cu", type=int, default=1,
|
|
help="Number of Global Memory pipelines per CU")
|
|
parser.add_argument("--wfs-per-simd", type=int, default=10,
|
|
help="Number of WF slots per SIMD")
|
|
|
|
parser.add_argument("--registerManagerPolicy", type=str,
|
|
default="static", help="Register manager policy")
|
|
parser.add_argument("--vreg-file-size", type=int, default=2048,
|
|
help="number of physical vector registers per SIMD")
|
|
parser.add_argument("--vreg-min-alloc", type=int, default=4,
|
|
help="vector register reservation unit")
|
|
|
|
parser.add_argument("--sreg-file-size", type=int, default=2048,
|
|
help="number of physical scalar registers per SIMD")
|
|
parser.add_argument("--sreg-min-alloc", type=int, default=4,
|
|
help="scalar register reservation unit")
|
|
|
|
parser.add_argument("--bw-scalor", type=int, default=0,
|
|
help="bandwidth scalor for scalability analysis")
|
|
parser.add_argument("--CPUClock", type=str, default="2GHz",
|
|
help="CPU clock")
|
|
parser.add_argument("--gpu-clock", type=str, default="1GHz",
|
|
help="GPU clock")
|
|
parser.add_argument("--cpu-voltage", action="store", type=str,
|
|
default='1.0V', help="CPU voltage domain")
|
|
parser.add_argument("--gpu-voltage", action="store", type=str,
|
|
default='1.0V', help="GPU voltage domain")
|
|
parser.add_argument("--CUExecPolicy", type=str, default="OLDEST-FIRST",
|
|
help="WF exec policy (OLDEST-FIRST, ROUND-ROBIN)")
|
|
parser.add_argument("--LocalMemBarrier",action="store_true",
|
|
help="Barrier does not wait for writethroughs to "
|
|
" complete")
|
|
parser.add_argument("--countPages", action="store_true",
|
|
help="Count Page Accesses and output in "
|
|
" per-CU output files")
|
|
parser.add_argument("--TLB-prefetch", type=int, help="prefetch depth for"
|
|
"TLBs")
|
|
parser.add_argument("--pf-type", type=str, help="type of prefetch: "
|
|
"PF_CU, PF_WF, PF_PHASE, PF_STRIDE")
|
|
parser.add_argument("--pf-stride", type=int, help="set prefetch stride")
|
|
parser.add_argument("--numLdsBanks", type=int, default=32,
|
|
help="number of physical banks per LDS module")
|
|
parser.add_argument("--ldsBankConflictPenalty", type=int, default=1,
|
|
help="number of cycles per LDS bank conflict")
|
|
parser.add_argument("--lds-size", type=int, default=65536,
|
|
help="Size of the LDS in bytes")
|
|
parser.add_argument("--num-hw-queues", type=int, default=10,
|
|
help="number of hw queues in packet processor")
|
|
parser.add_argument("--reg-alloc-policy", type=str, default="simple",
|
|
help="register allocation policy (simple/dynamic)")
|
|
|