7c8662f54a
This patch adds an extra layer to the pyfdt library such that usage gets easier and device tree nodes can be specified in less code, without limiting original usage. Note to not import both the pyfdt and fdthelper in the same namespace (but generally fdthelper is all you need, because it supplies the same classes even when they are not extended in any way) Also, this patch lays out the primary functionality for generating a device tree, where every SimObject gets an empty generateDeviceTree method and ArmSystems loop over their children in an effort to merge all the nodes. Devices are implemented in other patches. Change-Id: I4d0a0666827287fe42e18447f19acab4dc80cc49 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/5962 Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
60 lines
2.8 KiB
Python
60 lines
2.8 KiB
Python
# Copyright (c) 2014 ARM Limited
|
|
# All rights reserved.
|
|
#
|
|
# The license below extends only to copyright in the software and shall
|
|
# not be construed as granting a license to any other intellectual
|
|
# property including but not limited to intellectual property relating
|
|
# to a hardware implementation of the functionality of the software
|
|
# licensed hereunder. You may use the software subject to the license
|
|
# terms below provided that you ensure that this notice is replicated
|
|
# unmodified and in its entirety in all distributions of the software,
|
|
# modified or unmodified, in source code or in binary form.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are
|
|
# met: redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer;
|
|
# 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;
|
|
# neither the name of the copyright holders 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
|
|
# OWNER 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 INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
#
|
|
# Authors: Geoffrey Blake
|
|
#
|
|
|
|
from m5.SimObject import SimObject
|
|
from m5.params import *
|
|
|
|
# An empty simobject. Used for organizing simobjects
|
|
# into logical groups as subsystems of a larger
|
|
# system. For example, if we wanted to build a cpu cluster
|
|
# subsystem of 2 cores with private L1 caches and a shared
|
|
# L2, but needed 8 total cores, we could instantiate 4
|
|
# SubSystems containing the same child simobjects but avoid
|
|
# any naming conflicts.
|
|
#
|
|
class SubSystem(SimObject):
|
|
type = 'SubSystem'
|
|
cxx_header = "sim/sub_system.hh"
|
|
abstract = False
|
|
|
|
# Thermal domain associated to this object, inheriting the parent's
|
|
# clock domain by default
|
|
thermal_domain = Param.ThermalDomain(NULL, "Thermal domain")
|
|
|
|
generateDeviceTree = SimObject.recurseDeviceTree
|