utility.cc revision 6759:98101a5f7ee4 
1/*
2 * Copyright (c) 2009 ARM Limited
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 * Authors: Ali Saidi
29 */
30
31
32#include "arch/arm/faults.hh"
33#include "arch/arm/utility.hh"
34#include "cpu/thread_context.hh"
35
36
37namespace ArmISA {
38
39void
40initCPU(ThreadContext *tc, int cpuId)
41{
42    // Reset CP15?? What does that mean -- ali
43
44    // FPEXC.EN = 0
45
46    static Fault reset = new Reset;
47    if (cpuId == 0)
48        reset->invoke(tc);
49}
50
51uint64_t getArgument(ThreadContext *tc, int number, bool fp) {
52#if FULL_SYSTEM
53    panic("getArgument() not implemented for ARM!\n");
54#else
55    panic("getArgument() only implemented for FULL_SYSTEM\n");
56    M5_DUMMY_RETURN
57#endif
58}
59
60Fault
61setCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2)
62{
63   return new UnimpFault(csprintf("MCR CP15: CRn: %d opc1: %d CRm: %d opc1: %d\n",
64               CRn, opc1, CRm, opc2));
65}
66
67Fault
68readCp15Register(uint32_t &Rd, int CRn, int opc1, int CRm, int opc2)
69{
70   return new UnimpFault(csprintf("MRC CP15: CRn: %d opc1: %d CRm: %d opc1: %d\n",
71           CRn, opc1, CRm, opc2));
72
73}
74
75
76}
77