2 * Copyright (c) 2006 The Regents of The University of Michigan
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.
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.
32 * This device implements the niagara I/O Bridge chip. The device manages
33 * internal (ipi) and external (serial, pci via jbus).
36 #ifndef __DEV_SPARC_IOB_HH__
37 #define __DEV_SPARC_IOB_HH__
39 #include "base/range.hh"
40 #include "dev/disk_image.hh"
41 #include "dev/io_device.hh"
42 #include "params/Iob.hh"
46 const int MaxNiagaraProcs = 32;
47 // IOB Managment Addresses
48 const Addr IntManAddr = 0x0000;
49 const Addr IntManSize = 0x0020;
50 const Addr IntCtlAddr = 0x0400;
51 const Addr IntCtlSize = 0x0020;
52 const Addr JIntVecAddr = 0x0A00;
53 const Addr IntVecDisAddr = 0x0800;
54 const Addr IntVecDisSize = 0x0100;
57 // IOB Control Addresses
58 const Addr JIntData0Addr = 0x0400;
59 const Addr JIntData1Addr = 0x0500;
60 const Addr JIntDataA0Addr = 0x0600;
61 const Addr JIntDataA1Addr = 0x0700;
62 const Addr JIntBusyAddr = 0x0900;
63 const Addr JIntBusySize = 0x0100;
64 const Addr JIntABusyAddr = 0x0B00;
68 const uint64_t IntManMask = 0x01F3F;
69 const uint64_t IntCtlMask = 0x00006;
70 const uint64_t JIntVecMask = 0x0003F;
71 const uint64_t IntVecDis = 0x31F3F;
72 const uint64_t JIntBusyMask = 0x0003F;
75 class Iob : public PioDevice
115 IntMan intMan[NumDeviceIds];
116 IntCtl intCtl[NumDeviceIds];
118 uint64_t jBusData0[MaxNiagaraProcs];
119 uint64_t jBusData1[MaxNiagaraProcs];
120 IntBusy jIntBusy[MaxNiagaraProcs];
122 void writeIob(PacketPtr pkt);
123 void writeJBus(PacketPtr pkt);
124 void readIob(PacketPtr pkt);
125 void readJBus(PacketPtr pkt);
128 typedef IobParams Params;
129 Iob(const Params *p);
134 return dynamic_cast<const Params *>(_params);
137 virtual Tick read(PacketPtr pkt);
138 virtual Tick write(PacketPtr pkt);
139 void generateIpi(Type type, int cpu_id, int vector);
140 void receiveDeviceInterrupt(DeviceId devid);
141 bool receiveJBusInterrupt(int cpu_id, int source, uint64_t d0,
144 AddrRangeList getAddrRanges();
146 virtual void serialize(std::ostream &os);
147 virtual void unserialize(Checkpoint *cp, const std::string §ion);
151 #endif //__DEV_SPARC_IOB_HH__