# Copyright (c) 2022 Advanced Micro Devices, Inc.
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# this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
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# software without specific prior written permission.
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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
#from VegaConfigs import *

#from m5.objects import *


demo_runscript = '''\
export LD_LIBRARY_PATH=/opt/rocm/lib:$LD_LIBRARY_PATH
export HSA_ENABLE_SDMA=0
dmesg -n8
dd if=/root/roms/vega10.rom of=/dev/mem bs=1k seek=768 count=128
modprobe -v amdgpu ip_block_mask=0xff ppfeaturemask=0 dpm=0 audio=0
echo "Running {} {}"
echo "{}" | base64 -d > myapp
chmod +x myapp
echo ./myapp {}
/sbin/m5 exit
'''

def addDemoOptions(parser):
    parser.add_argument("-a", "--app", default=None,
                        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)
    #parseVegaOptions(parser)
    addDemoOptions(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)
    elif not os.path.isfile(args.app):
        print("Could not find applcation", args.app)
        sys.exit(1)

    with open(os.path.abspath(args.app), 'rb') as binfile:
        encodedBin = base64.b64encode(binfile.read()).decode()

    _, tempRunscript = tempfile.mkstemp()
    with open(tempRunscript, 'w') as b64file:
        runscriptStr = demo_runscript.format(args.app, args.opts, encodedBin,
                                             args.opts)
        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)