interrupts.hh (3654:68f9d32c2979) | interrupts.hh (3827:030cb88ad449) |
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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" | 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" |
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35 | 36 |
37 |
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36namespace SparcISA 37{ 38 class Interrupts 39 { 40 protected: | 38namespace SparcISA 39{ 40 class Interrupts 41 { 42 protected: |
41 Fault interrupts[NumInterruptLevels]; 42 bool requested[NumInterruptLevels]; | |
43 | 43 |
44 |
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44 public: 45 Interrupts() 46 { | 45 public: 46 Interrupts() 47 { |
47 for(int x = 0; x < NumInterruptLevels; x++) 48 { 49 interrupts[x] = new InterruptLevelN(x); 50 requested[x] = false; 51 } | 48 |
52 } 53 void post(int int_num, int index) 54 { | 49 } 50 void post(int int_num, int index) 51 { |
55 if(int_num < 0 || int_num >= NumInterruptLevels) 56 panic("int_num out of bounds\n"); | |
57 | 52 |
58 requested[int_num] = true; | |
59 } 60 61 void clear(int int_num, int index) 62 { | 53 } 54 55 void clear(int int_num, int index) 56 { |
63 requested[int_num] = false; | 57 |
64 } 65 66 void clear_all() 67 { | 58 } 59 60 void clear_all() 61 { |
68 for(int x = 0; x < NumInterruptLevels; x++) 69 requested[x] = false; | 62 |
70 } 71 72 bool check_interrupts(ThreadContext * tc) const 73 { | 63 } 64 65 bool check_interrupts(ThreadContext * tc) const 66 { |
74 return true; | 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; |
75 } 76 77 Fault getInterrupt(ThreadContext * tc) 78 { | 73 } 74 75 Fault getInterrupt(ThreadContext * tc) 76 { |
79 return NoFault; | 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 } |
80 } 81 82 void updateIntrInfo(ThreadContext * tc) 83 { 84 85 } 86 87 void serialize(std::ostream &os) 88 { 89 } 90 91 void unserialize(Checkpoint *cp, const std::string §ion) 92 { 93 } 94 }; 95} 96 97#endif // __ARCH_SPARC_INTERRUPT_HH__ | 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 §ion) 103 { 104 } 105 }; 106} 107 108#endif // __ARCH_SPARC_INTERRUPT_HH__ |