2 * Copyright (c) 2013 Andreas Sandberg
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.
28 * Authors: Andreas Sandberg
31 #include "arch/generic/mmapped_ipr.hh"
32 #include "mem/packet.hh"
33 #include "mem/packet_access.hh"
34 #include "sim/pseudo_inst.hh"
36 using namespace GenericISA
;
39 handlePseudoInst(ThreadContext
*xc
, Packet
*pkt
)
41 const Addr
offset(pkt
->getAddr() & IPR_IN_CLASS_MASK
);
42 const uint8_t func((offset
>> 8) & 0xFF);
43 const uint8_t subfunc(offset
& 0xFF);
46 assert((offset
>> 16) == 0);
47 ret
= PseudoInst::pseudoInst(xc
, func
, subfunc
);
53 GenericISA::handleGenericIprRead(ThreadContext
*xc
, Packet
*pkt
)
55 Addr
va(pkt
->getAddr());
56 Addr
cls(va
>> IPR_CLASS_SHIFT
);
59 case IPR_CLASS_PSEUDO_INST
:
60 handlePseudoInst(xc
, pkt
);
63 panic("Unhandled generic IPR read: 0x%x\n", va
);
70 GenericISA::handleGenericIprWrite(ThreadContext
*xc
, Packet
*pkt
)
72 Addr
va(pkt
->getAddr());
73 Addr
cls(va
>> IPR_CLASS_SHIFT
);
76 case IPR_CLASS_PSEUDO_INST
:
77 handlePseudoInst(xc
, pkt
);
80 panic("Unhandled generic IPR write: 0x%x\n", va
);