# Copyright (c) 2022 Advanced Micro Devices, Inc.
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import m5
import runfs
import tempfile
import argparse
import sys
import os

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

samples_runscript = """\
export LD_LIBRARY_PATH=/opt/rocm/lib:$LD_LIBRARY_PATH
export HSA_ENABLE_SDMA=0
export HSA_ENABLE_INTERRUPT=0
dmesg -n3
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/HIP-Examples-Applications/{}/
make clean
make
/sbin/m5 exit
"""


def addSamplesOptions(parser):
    parser.add_argument(
        "-a",
        "--app",
        default=None,
        choices=[
            "BinomialOption",
            "BitonicSort",
            "FastWalshTransform",
            "FloydWarshall",
            "HelloWorld",
            "Histogram",
            "MatrixMultiplication",
            "PrefixSum",
            "RecursiveGaussian",
            "SimpleConvolution",
            "dct",
            "dwtHaar1D",
        ],
        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)
    addSamplesOptions(parser)

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

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

    _, tempRunscript = tempfile.mkstemp()
    with open(tempRunscript, "w") as b64file:
        runscriptStr = samples_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)