arch: Get rid of the unused (and mostly undefined) zeroRegisters.
[gem5.git] / src / arch / power / utility.hh
1 /*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * Copyright (c) 2007-2008 The Florida State University
4 * Copyright (c) 2009 The University of Edinburgh
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met: redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer;
11 * redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution;
14 * neither the name of the copyright holders nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * Authors: Korey Sewell
31 * Stephen Hines
32 * Timothy M. Jones
33 */
34
35 #ifndef __ARCH_POWER_UTILITY_HH__
36 #define __ARCH_POWER_UTILITY_HH__
37
38 #include "base/types.hh"
39 #include "cpu/static_inst.hh"
40 #include "cpu/thread_context.hh"
41
42 namespace PowerISA {
43
44 inline PCState
45 buildRetPC(const PCState &curPC, const PCState &callPC)
46 {
47 PCState retPC = callPC;
48 retPC.advance();
49 return retPC;
50 }
51
52 inline void
53 startupCPU(ThreadContext *tc, int cpuId)
54 {
55 tc->activate();
56 }
57
58 void
59 copyRegs(ThreadContext *src, ThreadContext *dest);
60
61 static inline void
62 copyMiscRegs(ThreadContext *src, ThreadContext *dest)
63 {
64 }
65
66 void skipFunction(ThreadContext *tc);
67
68 inline void
69 advancePC(PCState &pc, const StaticInstPtr &inst)
70 {
71 pc.advance();
72 }
73
74 uint64_t getArgument(ThreadContext *tc, int &number, uint16_t size, bool fp);
75
76 static inline bool
77 inUserMode(ThreadContext *tc)
78 {
79 return 0;
80 }
81
82 inline uint64_t
83 getExecutingAsid(ThreadContext *tc)
84 {
85 return 0;
86 }
87
88 void initCPU(ThreadContext *, int cpuId);
89
90 } // namespace PowerISA
91
92
93 #endif // __ARCH_POWER_UTILITY_HH__