1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __ARCH_SPARC_UTILITY_HH__
#define __ARCH_SPARC_UTILITY_HH__
#include "arch/sparc/faults.hh"
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/registers.hh"
#include "arch/sparc/tlb.hh"
#include "base/misc.hh"
#include "base/bitfield.hh"
#include "cpu/thread_context.hh"
namespace SparcISA
{
uint64_t getArgument(ThreadContext *tc, int number, bool fp);
static inline bool
inUserMode(ThreadContext *tc)
{
return !((tc->readMiscRegNoEffect(MISCREG_PSTATE) & (1 << 2)) ||
(tc->readMiscRegNoEffect(MISCREG_HPSTATE) & (1 << 2)));
}
/**
* Function to insure ISA semantics about 0 registers.
* @param tc The thread context.
*/
template <class TC>
void zeroRegisters(TC *tc);
inline void
initCPU(ThreadContext *tc, int cpuId)
{
static Fault por = new PowerOnReset();
if (cpuId == 0)
por->invoke(tc);
}
inline void
startupCPU(ThreadContext *tc, int cpuId)
{
#if FULL_SYSTEM
// Other CPUs will get activated by IPIs
if (cpuId == 0)
tc->activate(0);
#else
tc->activate(0);
#endif
}
void copyRegs(ThreadContext *src, ThreadContext *dest);
void copyMiscRegs(ThreadContext *src, ThreadContext *dest);
} // namespace SparcISA
#endif
|
