1/* 2 * Copyright (c) 2003-2005 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; 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: Steve Reinhardt 29 * Gabe Black 30 */ 31 32#ifndef __ARCH_ALPHA_ISA_TRAITS_HH__ 33#define __ARCH_ALPHA_ISA_TRAITS_HH__ 34 35namespace LittleEndianGuest {} 36 37#include "arch/alpha/ipr.hh" 38#include "arch/alpha/max_inst_regs.hh" 39#include "arch/alpha/types.hh" 40#include "config/full_system.hh" 41#include "sim/host.hh" 42 43class StaticInstPtr; 44
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45namespace AlphaISA
46{
47 using namespace LittleEndianGuest;
48 using AlphaISAInst::MaxInstSrcRegs;
49 using AlphaISAInst::MaxInstDestRegs;
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45namespace AlphaISA { |
46
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51 // These enumerate all the registers for dependence tracking.
52 enum DependenceTags {
53 // 0..31 are the integer regs 0..31
54 // 32..63 are the FP regs 0..31, i.e. use (reg + FP_Base_DepTag)
55 FP_Base_DepTag = 40,
56 Ctrl_Base_DepTag = 72
57 };
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47using namespace LittleEndianGuest; 48using AlphaISAInst::MaxInstSrcRegs; 49using AlphaISAInst::MaxInstDestRegs; |
50
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59 StaticInstPtr decodeInst(ExtMachInst);
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51// These enumerate all the registers for dependence tracking. 52enum DependenceTags { 53 // 0..31 are the integer regs 0..31 54 // 32..63 are the FP regs 0..31, i.e. use (reg + FP_Base_DepTag) 55 FP_Base_DepTag = 40, 56 Ctrl_Base_DepTag = 72 57}; |
58
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61 // Alpha Does NOT have a delay slot
62 #define ISA_HAS_DELAY_SLOT 0
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59StaticInstPtr decodeInst(ExtMachInst); |
60
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64 const Addr PageShift = 13;
65 const Addr PageBytes = ULL(1) << PageShift;
66 const Addr PageMask = ~(PageBytes - 1);
67 const Addr PageOffset = PageBytes - 1;
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61// Alpha Does NOT have a delay slot 62#define ISA_HAS_DELAY_SLOT 0 |
63
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64const Addr PageShift = 13; 65const Addr PageBytes = ULL(1) << PageShift; 66const Addr PageMask = ~(PageBytes - 1); 67const Addr PageOffset = PageBytes - 1; |
68
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70 ////////////////////////////////////////////////////////////////////////
71 //
72 // Translation stuff
73 //
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69//////////////////////////////////////////////////////////////////////// 70// 71// Translation stuff 72// |
73
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75 const Addr PteShift = 3;
76 const Addr NPtePageShift = PageShift - PteShift;
77 const Addr NPtePage = ULL(1) << NPtePageShift;
78 const Addr PteMask = NPtePage - 1;
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74const Addr PteShift = 3; 75const Addr NPtePageShift = PageShift - PteShift; 76const Addr NPtePage = ULL(1) << NPtePageShift; 77const Addr PteMask = NPtePage - 1; |
78
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80 // User Virtual
81 const Addr USegBase = ULL(0x0);
82 const Addr USegEnd = ULL(0x000003ffffffffff);
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79// User Virtual 80const Addr USegBase = ULL(0x0); 81const Addr USegEnd = ULL(0x000003ffffffffff); |
82
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84 // Kernel Direct Mapped
85 const Addr K0SegBase = ULL(0xfffffc0000000000);
86 const Addr K0SegEnd = ULL(0xfffffdffffffffff);
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83// Kernel Direct Mapped 84const Addr K0SegBase = ULL(0xfffffc0000000000); 85const Addr K0SegEnd = ULL(0xfffffdffffffffff); |
86
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88 // Kernel Virtual
89 const Addr K1SegBase = ULL(0xfffffe0000000000);
90 const Addr K1SegEnd = ULL(0xffffffffffffffff);
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87// Kernel Virtual 88const Addr K1SegBase = ULL(0xfffffe0000000000); 89const Addr K1SegEnd = ULL(0xffffffffffffffff); |
90
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92 // For loading... XXX This maybe could be USegEnd?? --ali
93 const Addr LoadAddrMask = ULL(0xffffffffff);
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91// For loading... XXX This maybe could be USegEnd?? --ali 92const Addr LoadAddrMask = ULL(0xffffffffff); |
93
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95#if FULL_SYSTEM
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94//////////////////////////////////////////////////////////////////////// 95// 96// Interrupt levels 97// 98enum InterruptLevels 99{ 100 INTLEVEL_SOFTWARE_MIN = 4, 101 INTLEVEL_SOFTWARE_MAX = 19, |
102
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97 ////////////////////////////////////////////////////////////////////////
98 //
99 // Interrupt levels
100 //
101 enum InterruptLevels
102 {
103 INTLEVEL_SOFTWARE_MIN = 4,
104 INTLEVEL_SOFTWARE_MAX = 19,
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103 INTLEVEL_EXTERNAL_MIN = 20, 104 INTLEVEL_EXTERNAL_MAX = 34, |
105
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106 INTLEVEL_EXTERNAL_MIN = 20,
107 INTLEVEL_EXTERNAL_MAX = 34,
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106 INTLEVEL_IRQ0 = 20, 107 INTLEVEL_IRQ1 = 21, 108 INTINDEX_ETHERNET = 0, 109 INTINDEX_SCSI = 1, 110 INTLEVEL_IRQ2 = 22, 111 INTLEVEL_IRQ3 = 23, |
112
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109 INTLEVEL_IRQ0 = 20,
110 INTLEVEL_IRQ1 = 21,
111 INTINDEX_ETHERNET = 0,
112 INTINDEX_SCSI = 1,
113 INTLEVEL_IRQ2 = 22,
114 INTLEVEL_IRQ3 = 23,
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113 INTLEVEL_SERIAL = 33, |
114
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116 INTLEVEL_SERIAL = 33,
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115 NumInterruptLevels = INTLEVEL_EXTERNAL_MAX 116}; |
117
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118 NumInterruptLevels = INTLEVEL_EXTERNAL_MAX
119 };
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118// EV5 modes 119enum mode_type 120{ 121 mode_kernel = 0, // kernel 122 mode_executive = 1, // executive (unused by unix) 123 mode_supervisor = 2, // supervisor (unused by unix) 124 mode_user = 3, // user mode 125 mode_number // number of modes 126}; |
127
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121#endif
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128// Constants Related to the number of registers |
129
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123 // EV5 modes
124 enum mode_type
125 {
126 mode_kernel = 0, // kernel
127 mode_executive = 1, // executive (unused by unix)
128 mode_supervisor = 2, // supervisor (unused by unix)
129 mode_user = 3, // user mode
130 mode_number // number of modes
131 };
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130const int NumIntArchRegs = 32; 131const int NumPALShadowRegs = 8; 132const int NumFloatArchRegs = 32; 133// @todo: Figure out what this number really should be. 134const int NumMiscArchRegs = 77; |
135
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133 // Constants Related to the number of registers
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136const int NumIntRegs = NumIntArchRegs + NumPALShadowRegs; 137const int NumFloatRegs = NumFloatArchRegs; 138const int NumMiscRegs = NumMiscArchRegs; |
139
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135 const int NumIntArchRegs = 32;
136 const int NumPALShadowRegs = 8;
137 const int NumFloatArchRegs = 32;
138 // @todo: Figure out what this number really should be.
139 const int NumMiscArchRegs = 77;
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140const int TotalNumRegs = 141 NumIntRegs + NumFloatRegs + NumMiscRegs + NumInternalProcRegs; |
142
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141 const int NumIntRegs = NumIntArchRegs + NumPALShadowRegs;
142 const int NumFloatRegs = NumFloatArchRegs;
143 const int NumMiscRegs = NumMiscArchRegs;
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143const int TotalDataRegs = NumIntRegs + NumFloatRegs; |
144
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145 const int TotalNumRegs = NumIntRegs + NumFloatRegs +
146 NumMiscRegs + NumInternalProcRegs;
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145// semantically meaningful register indices 146const int ZeroReg = 31; // architecturally meaningful 147// the rest of these depend on the ABI 148const int StackPointerReg = 30; 149const int GlobalPointerReg = 29; 150const int ProcedureValueReg = 27; 151const int ReturnAddressReg = 26; 152const int ReturnValueReg = 0; 153const int FramePointerReg = 15; |
154
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148 const int TotalDataRegs = NumIntRegs + NumFloatRegs;
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155const int ArgumentReg[] = {16, 17, 18, 19, 20, 21}; 156const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int); |
157
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150 // semantically meaningful register indices
151 const int ZeroReg = 31; // architecturally meaningful
152 // the rest of these depend on the ABI
153 const int StackPointerReg = 30;
154 const int GlobalPointerReg = 29;
155 const int ProcedureValueReg = 27;
156 const int ReturnAddressReg = 26;
157 const int ReturnValueReg = 0;
158 const int FramePointerReg = 15;
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158const int SyscallNumReg = ReturnValueReg; 159const int SyscallPseudoReturnReg = ArgumentReg[4]; 160const int SyscallSuccessReg = 19; |
161
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160 const int ArgumentReg[] = {16, 17, 18, 19, 20, 21};
161 const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int);
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162const int LogVMPageSize = 13; // 8K bytes 163const int VMPageSize = (1 << LogVMPageSize); |
164
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163 const int SyscallNumReg = ReturnValueReg;
164 const int SyscallPseudoReturnReg = ArgumentReg[4];
165 const int SyscallSuccessReg = 19;
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165const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned |
166
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167 const int LogVMPageSize = 13; // 8K bytes
168 const int VMPageSize = (1 << LogVMPageSize);
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167const int MachineBytes = 8; 168const int WordBytes = 4; 169const int HalfwordBytes = 2; 170const int ByteBytes = 1; |
171
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170 const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned
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172// return a no-op instruction... used for instruction fetch faults 173// Alpha UNOP (ldq_u r31,0(r0)) 174const ExtMachInst NoopMachInst = 0x2ffe0000; |
175
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172 const int MachineBytes = 8;
173 const int WordBytes = 4;
174 const int HalfwordBytes = 2;
175 const int ByteBytes = 1;
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176} // namespace AlphaISA |
177
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177 // return a no-op instruction... used for instruction fetch faults
178 // Alpha UNOP (ldq_u r31,0(r0))
179 const ExtMachInst NoopMachInst = 0x2ffe0000;
180
181};
182
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178#endif // __ARCH_ALPHA_ISA_TRAITS_HH__
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