# Copyright (c) 2022 Advanced Micro Devices, Inc.
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#
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# 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.
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# 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
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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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

cookbook_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 /opt/rocm/hip/samples/2_Cookbook/{}/
make clean
make
/sbin/m5 exit
"""


def addCookbookOptions(parser):
    parser.add_argument(
        "-a",
        "--app",
        default=None,
        choices=[
            "0_MatrixTranspose",
            "1_hipEvent",
            "3_shared_memory",
            "4_shfl",
            "5_2dshfl",
            "6_dynamic_shared",
            "7_streams",
            "8_peer2peer",
            "9_unroll",
            "10_inline_asm",
            "11_texture_driver",
            "13_occupancy",
            "14_gpu_arch",
            "15_static_library",
        ],
        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)
    addCookbookOptions(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 = cookbook_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)