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# Copyright (c) 2021 Advanced Micro Devices, Inc.
# All rights reserved.
#
# 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.
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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
# 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
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
from m5.params import *
from m5.objects.PciDevice import PciDevice
from m5.objects.PciDevice import PciMemBar, PciMemUpperBar, PciLegacyIoBar
# PCI device model for an AMD Vega 10 based GPU. The PCI codes and BARs
# correspond to a Vega Frontier Edition hardware device. None of the PCI
# related values in this class should be changed.
#
# This class requires a ROM binary and an MMIO trace to initialize the
# device registers and memory. It is intended only to be used in full-system
# simulation under Linux where the amdgpu driver is modprobed.
class AMDGPUDevice(PciDevice):
type = 'AMDGPUDevice'
cxx_header = "dev/amdgpu/amdgpu_device.hh"
cxx_class = 'gem5::AMDGPUDevice'
# IDs for AMD Vega 10
VendorID = 0x1002
DeviceID = 0x6863
# Command 0x3 never gets sent indicating IO and Mem bars are enabled. Hard
# code the command here and deal unassigned BARs on C++ side.
Command = 0x3
Status = 0x0280
Revision = 0x0
ClassCode = 0x03
SubClassCode = 0x00
ProgIF = 0x00
# Use max possible BAR size for Vega 10. We can override with driver param
BAR0 = PciMemBar(size='16GiB')
BAR1 = PciMemUpperBar()
BAR2 = PciMemBar(size='2MiB')
BAR3 = PciMemUpperBar()
BAR4 = PciLegacyIoBar(addr=0xf000, size='256B')
BAR5 = PciMemBar(size='512KiB')
InterruptLine = 14
InterruptPin = 2
ExpansionROM = 0
rom_binary = Param.String("ROM binary dumped from hardware")
trace_file = Param.String("MMIO trace collected on hardware")
checkpoint_before_mmios = Param.Bool(False, "Take a checkpoint before the"
" device begins sending MMIOs")