1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
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;

--- 18 unchanged lines hidden (view full) ---

27 *
28 * Authors: Gabe Black
29 */
30
31#ifndef __ARCH_SPARC_INTERRUPT_HH__
32#define __ARCH_SPARC_INTERRUPT_HH__
33
34#include "arch/sparc/faults.hh"
35#include "cpu/thread_context.hh"
36
37
38namespace SparcISA
39{
40 class Interrupts
41 {
42 protected:
43
44
45 public:
46 Interrupts()
47 {
48
49 }
50 void post(int int_num, int index)
51 {
52
53 }
54
55 void clear(int int_num, int index)
56 {
57
58 }
59
60 void clear_all()
61 {
62
63 }
64
65 bool check_interrupts(ThreadContext * tc) const
66 {
67 // so far only handle softint interrupts
68 int int_level = InterruptLevel(tc->readMiscReg(MISCREG_SOFTINT));
69 if (int_level)
70 return true;
71 else
72 return false;
73 }
74
75 Fault getInterrupt(ThreadContext * tc)
76 {
77 // conditioning the softint interrups
78 if (tc->readMiscReg(MISCREG_HPSTATE) & hpriv) {
79 // if running in privileged mode, then pend the interrupt
80 return NoFault;
81 } else {
82 int int_level = InterruptLevel(tc->readMiscReg(MISCREG_SOFTINT));
83 if ((int_level <= tc->readMiscReg(MISCREG_PIL)) ||
84 !(tc->readMiscReg(MISCREG_PSTATE) & ie)) {
85 // if PIL or no interrupt enabled, then pend the interrupt
86 return NoFault;
87 } else {
88 return new InterruptLevelN(int_level);
89 }
90 }
91 }
92
93 void updateIntrInfo(ThreadContext * tc)
94 {
95
96 }
97
98 void serialize(std::ostream &os)
99 {
100 }
101
102 void unserialize(Checkpoint *cp, const std::string &section)
103 {
104 }
105 };
106}
107
108#endif // __ARCH_SPARC_INTERRUPT_HH__