# Copyright (c) 2022 Advanced Micro Devices, Inc.
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# this list of conditions and the following disclaimer.
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# this list of conditions and the following disclaimer in the documentation
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import m5
import runfs
import base64
import tempfile
import argparse
import sys
import os

from amd import AmdGPUOptions
from common import Options
from common import GPUTLBOptions
from ruby import Ruby

rodinia_runscript = """\
export LD_LIBRARY_PATH=/opt/rocm/lib:$LD_LIBRARY_PATH
export HSA_ENABLE_INTERRUPT=0
dmesg -n8
dd if=/root/roms/vega10.rom of=/dev/mem bs=1k seek=768 count=128
if [ ! -f /lib/modules/`uname -r`/updates/dkms/amdgpu.ko ]; then
    echo "ERROR: Missing DKMS package for kernel `uname -r`. Exiting gem5."
    /sbin/m5 exit
fi
modprobe -v amdgpu ip_block_mask=0xff ppfeaturemask=0 dpm=0 audio=0
echo "Running {}"
cd /home/gem5/HIP-Examples/rodinia_3.0/hip/{}/
make clean
make
make test
/sbin/m5 exit
"""


def addRodiniaOptions(parser):
    parser.add_argument(
        "-a",
        "--app",
        default=None,
        choices=[
            "b+tree",
            "backprop",
            "bfs",
            "cfd",
            "dwt2d",
            "gaussian",
            "heartwall",
            "hotspot",
            "hybridsort",
            "kmeans",
            "lavaMD",
            "leukocyte",
            "lud",
            "myocyte",
            "nn",
            "nw",
            "particlefilter",
            "pathfinder",
            "srad",
            "streamcluster",
        ],
        help="GPU application to run",
    )
    parser.add_argument(
        "-o", "--opts", default="", help="GPU application arguments"
    )


if __name__ == "__m5_main__":
    parser = argparse.ArgumentParser()
    runfs.addRunFSOptions(parser)
    Options.addCommonOptions(parser)
    AmdGPUOptions.addAmdGPUOptions(parser)
    Ruby.define_options(parser)
    GPUTLBOptions.tlb_options(parser)
    addRodiniaOptions(parser)

    # Parse now so we can override options
    args = parser.parse_args()

    # Create temp script to run application
    if args.app is None:
        print(f"No application given. Use {sys.argv[0]} -a <app>")
        sys.exit(1)
    elif args.kernel is None:
        print(f"No kernel path given. Use {sys.argv[0]} --kernel <vmlinux>")
        sys.exit(1)
    elif args.disk_image is None:
        print(f"No disk path given. Use {sys.argv[0]} --disk-image <linux>")
        sys.exit(1)
    elif args.gpu_mmio_trace is None:
        print(f"No MMIO trace path. Use {sys.argv[0]} --gpu-mmio-trace <path>")
        sys.exit(1)

    _, tempRunscript = tempfile.mkstemp()
    with open(tempRunscript, "w") as b64file:
        runscriptStr = rodinia_runscript.format(args.app, args.app)
        b64file.write(runscriptStr)

    if args.second_disk == None:
        args.second_disk = args.disk_image

    # Defaults for Vega10
    args.ruby = True
    args.cpu_type = "X86KvmCPU"
    args.num_cpus = 1
    args.mem_size = "3GB"
    args.dgpu = True
    args.dgpu_mem_size = "16GB"
    args.dgpu_start = "0GB"
    args.checkpoint_restore = 0
    args.disjoint = True
    args.timing_gpu = True
    args.script = tempRunscript
    args.dgpu_xor_low_bit = 0

    print(args.disk_image)

    # Run gem5
    runfs.runGpuFSSystem(args)