gem5  v20.1.0.0
malta_cchip.hh
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2004-2005 The Regents of The University of Michigan
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met: redistributions of source code must retain the above copyright
8  * notice, this list of conditions and the following disclaimer;
9  * redistributions in binary form must reproduce the above copyright
10  * notice, this list of conditions and the following disclaimer in the
11  * documentation and/or other materials provided with the distribution;
12  * neither the name of the copyright holders nor the names of its
13  * contributors may be used to endorse or promote products derived from
14  * this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
33 #ifndef __MALTA_CCHIP_HH__
34 #define __MALTA_CCHIP_HH__
35 
36 #include "dev/mips/malta.hh"
37 #include "dev/io_device.hh"
38 #include "params/MaltaCChip.hh"
39 
44 class MaltaCChip : public BasicPioDevice
45 {
46  protected:
53 
58  //uint64_t dim[Malta::Max_CPUs];
59 
64  //uint64_t dir[Malta::Max_CPUs];
65 
70  //uint64_t drir;
71 
73  //uint64_t ipint;
74 
76  //uint64_t itint;
77 
78  public:
79  typedef MaltaCChipParams Params;
80 
81  const Params *
82  params() const
83  {
84  return dynamic_cast<const Params *>(_params);
85  }
86 
93 
94  Tick read(PacketPtr pkt) override;
95 
96  Tick write(PacketPtr pkt) override;
97 
101  void postRTC();
102 
107  void postIntr(uint32_t interrupt);
108 
113  void clearIntr(uint32_t interrupt);
114 
119  void clearIPI(uint64_t ipintr);
120 
125  void clearITI(uint64_t itintr);
126 
131  void reqIPI(uint64_t ipreq);
132 
133  void serialize(CheckpointOut &cp) const override;
134  void unserialize(CheckpointIn &cp) override;
135 };
136 
137 #endif // __MALTA_CCHIP_HH__
io_device.hh
malta.hh
MaltaCChip::clearIntr
void clearIntr(uint32_t interrupt)
clear an interrupt previously posted to the CPU.
Definition: malta_cchip.cc:118
MaltaCChip::read
Tick read(PacketPtr pkt) override
Pure virtual function that the device must implement.
Definition: malta_cchip.cc:64
Tick
uint64_t Tick
Tick count type.
Definition: types.hh:63
MaltaCChip::Params
MaltaCChipParams Params
The dims are device interrupt mask registers.
Definition: malta_cchip.hh:79
MaltaCChip::params
const Params * params() const
Definition: malta_cchip.hh:82
MaltaCChip::postIntr
void postIntr(uint32_t interrupt)
post an interrupt to the CPU.
Definition: malta_cchip.cc:103
cp
Definition: cprintf.cc:40
MaltaCChip::write
Tick write(PacketPtr pkt) override
Pure virtual function that the device must implement.
Definition: malta_cchip.cc:71
MaltaCChip::reqIPI
void reqIPI(uint64_t ipreq)
request an interrupt be posted to the CPU.
Definition: malta_cchip.cc:90
PioDevice::Params
PioDeviceParams Params
Definition: io_device.hh:131
MaltaCChip::malta
Malta * malta
pointer to the malta object.
Definition: malta_cchip.hh:52
MaltaCChip
Malta CChip CSR Emulation.
Definition: malta_cchip.hh:44
MaltaCChip::postRTC
void postRTC()
post an RTC interrupt to the CPU
Definition: malta_cchip.cc:97
MaltaCChip::serialize
void serialize(CheckpointOut &cp) const override
Serialize an object.
Definition: malta_cchip.cc:134
MaltaCChip::clearITI
void clearITI(uint64_t itintr)
clear a timer interrupt previously posted to the CPU.
Definition: malta_cchip.cc:84
SimObject::_params
const SimObjectParams * _params
Cached copy of the object parameters.
Definition: sim_object.hh:110
Malta
Top level class for Malta Chipset emulation.
Definition: malta.hh:53
Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:257
BasicPioDevice
Definition: io_device.hh:150
CheckpointOut
std::ostream CheckpointOut
Definition: serialize.hh:63
MaltaCChip::MaltaCChip
MaltaCChip(Params *p)
Initialize the Malta CChip by setting all of the device register to 0.
Definition: malta_cchip.cc:53
MaltaCChip::clearIPI
void clearIPI(uint64_t ipintr)
post an ipi interrupt to the CPU.
Definition: malta_cchip.cc:78
MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:323
CheckpointIn
Definition: serialize.hh:67
MaltaCChip::unserialize
void unserialize(CheckpointIn &cp) override
Unserialize an object.
Definition: malta_cchip.cc:139

Generated on Wed Sep 30 2020 14:02:11 for gem5 by doxygen 1.8.17