gem5/src/dev/CopyEngine.py
Andreas Sandberg c0ab52799c sim: Include object header files in SWIG interfaces
When casting objects in the generated SWIG interfaces, SWIG uses
classical C-style casts ( (Foo *)bar; ). In some cases, this can
degenerate into the equivalent of a reinterpret_cast (mainly if only a
forward declaration of the type is available). This usually works for
most compilers, but it is known to break if multiple inheritance is
used anywhere in the object hierarchy.

This patch introduces the cxx_header attribute to Python SimObject
definitions, which should be used to specify a header to include in
the SWIG interface. The header should include the declaration of the
wrapped object. We currently don't enforce header the use of the
header attribute, but a warning will be generated for objects that do
not use it.
2012-11-02 11:32:01 -05:00

61 lines
2.6 KiB
Python

# Copyright (c) 2008 The Regents of The University of Michigan
# All rights reserved.
#
# 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: Ali Saidi
from m5.SimObject import SimObject
from m5.params import *
from m5.proxy import *
from Pci import PciDevice
class CopyEngine(PciDevice):
type = 'CopyEngine'
cxx_header = "dev/copy_engine.hh"
dma = VectorMasterPort("Copy engine DMA port")
VendorID = 0x8086
DeviceID = 0x1a38
Revision = 0xA2 # CM2 stepping (newest listed)
SubsystemID = 0
SubsystemVendorID = 0
Status = 0x0000
SubClassCode = 0x08
ClassCode = 0x80
ProgIF = 0x00
MaximumLatency = 0x00
MinimumGrant = 0xff
InterruptLine = 0x20
InterruptPin = 0x01
BAR0Size = '1kB'
ChanCnt = Param.UInt8(4, "Number of DMA channels that exist on device")
XferCap = Param.MemorySize('4kB', "Number of bits of transfer size that are supported")
# Override the default clock
clock = '500MHz'
latBeforeBegin = Param.Latency('20ns', "Latency after a DMA command is seen before it's proccessed")
latAfterCompletion = Param.Latency('20ns', "Latency after a DMA command is complete before it's reported as such")