CopyEngine.py revision 11261 
1# Copyright (c) 2008 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Ali Saidi
28
29from m5.SimObject import SimObject
30from m5.params import *
31from m5.proxy import *
32from PciDevice import PciDevice
33
34class CopyEngine(PciDevice):
35    type = 'CopyEngine'
36    cxx_header = "dev/pci/copy_engine.hh"
37    dma = VectorMasterPort("Copy engine DMA port")
38    VendorID = 0x8086
39    DeviceID = 0x1a38
40    Revision = 0xA2 # CM2 stepping (newest listed)
41    SubsystemID = 0
42    SubsystemVendorID = 0
43    Status = 0x0000
44    SubClassCode = 0x08
45    ClassCode = 0x80
46    ProgIF = 0x00
47    MaximumLatency = 0x00
48    MinimumGrant = 0xff
49    InterruptLine = 0x20
50    InterruptPin = 0x01
51    BAR0Size = '1kB'
52
53    ChanCnt = Param.UInt8(4, "Number of DMA channels that exist on device")
54    XferCap = Param.MemorySize('4kB', "Number of bits of transfer size that are supported")
55
56    latBeforeBegin = Param.Latency('20ns', "Latency after a DMA command is seen before it's proccessed")
57    latAfterCompletion = Param.Latency('20ns', "Latency after a DMA command is complete before it's reported as such")
58
59
60