isa_traits.hh (5228:b08c9c42907a) isa_traits.hh (5543:3af77710f397)
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
45namespace AlphaISA
46{
47 using namespace LittleEndianGuest;
48 using AlphaISAInst::MaxInstSrcRegs;
49 using AlphaISAInst::MaxInstDestRegs;
50
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 };
58
59 StaticInstPtr decodeInst(ExtMachInst);
60
61 // Alpha Does NOT have a delay slot
62 #define ISA_HAS_DELAY_SLOT 0
63
64 const Addr PageShift = 13;
65 const Addr PageBytes = ULL(1) << PageShift;
66 const Addr PageMask = ~(PageBytes - 1);
67 const Addr PageOffset = PageBytes - 1;
68
69
70 ////////////////////////////////////////////////////////////////////////
71 //
72 // Translation stuff
73 //
74
75 const Addr PteShift = 3;
76 const Addr NPtePageShift = PageShift - PteShift;
77 const Addr NPtePage = ULL(1) << NPtePageShift;
78 const Addr PteMask = NPtePage - 1;
79
80 // User Virtual
81 const Addr USegBase = ULL(0x0);
82 const Addr USegEnd = ULL(0x000003ffffffffff);
83
84 // Kernel Direct Mapped
85 const Addr K0SegBase = ULL(0xfffffc0000000000);
86 const Addr K0SegEnd = ULL(0xfffffdffffffffff);
87
88 // Kernel Virtual
89 const Addr K1SegBase = ULL(0xfffffe0000000000);
90 const Addr K1SegEnd = ULL(0xffffffffffffffff);
91
92 // For loading... XXX This maybe could be USegEnd?? --ali
93 const Addr LoadAddrMask = ULL(0xffffffffff);
94
95#if FULL_SYSTEM
96
97 ////////////////////////////////////////////////////////////////////////
98 //
99 // Interrupt levels
100 //
101 enum InterruptLevels
102 {
103 INTLEVEL_SOFTWARE_MIN = 4,
104 INTLEVEL_SOFTWARE_MAX = 19,
105
106 INTLEVEL_EXTERNAL_MIN = 20,
107 INTLEVEL_EXTERNAL_MAX = 34,
108
109 INTLEVEL_IRQ0 = 20,
110 INTLEVEL_IRQ1 = 21,
111 INTINDEX_ETHERNET = 0,
112 INTINDEX_SCSI = 1,
113 INTLEVEL_IRQ2 = 22,
114 INTLEVEL_IRQ3 = 23,
115
116 INTLEVEL_SERIAL = 33,
117
118 NumInterruptLevels = INTLEVEL_EXTERNAL_MAX
119 };
120
121#endif
122
123 // EV5 modes
124 enum mode_type
125 {
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
45namespace AlphaISA
46{
47 using namespace LittleEndianGuest;
48 using AlphaISAInst::MaxInstSrcRegs;
49 using AlphaISAInst::MaxInstDestRegs;
50
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 };
58
59 StaticInstPtr decodeInst(ExtMachInst);
60
61 // Alpha Does NOT have a delay slot
62 #define ISA_HAS_DELAY_SLOT 0
63
64 const Addr PageShift = 13;
65 const Addr PageBytes = ULL(1) << PageShift;
66 const Addr PageMask = ~(PageBytes - 1);
67 const Addr PageOffset = PageBytes - 1;
68
69
70 ////////////////////////////////////////////////////////////////////////
71 //
72 // Translation stuff
73 //
74
75 const Addr PteShift = 3;
76 const Addr NPtePageShift = PageShift - PteShift;
77 const Addr NPtePage = ULL(1) << NPtePageShift;
78 const Addr PteMask = NPtePage - 1;
79
80 // User Virtual
81 const Addr USegBase = ULL(0x0);
82 const Addr USegEnd = ULL(0x000003ffffffffff);
83
84 // Kernel Direct Mapped
85 const Addr K0SegBase = ULL(0xfffffc0000000000);
86 const Addr K0SegEnd = ULL(0xfffffdffffffffff);
87
88 // Kernel Virtual
89 const Addr K1SegBase = ULL(0xfffffe0000000000);
90 const Addr K1SegEnd = ULL(0xffffffffffffffff);
91
92 // For loading... XXX This maybe could be USegEnd?? --ali
93 const Addr LoadAddrMask = ULL(0xffffffffff);
94
95#if FULL_SYSTEM
96
97 ////////////////////////////////////////////////////////////////////////
98 //
99 // Interrupt levels
100 //
101 enum InterruptLevels
102 {
103 INTLEVEL_SOFTWARE_MIN = 4,
104 INTLEVEL_SOFTWARE_MAX = 19,
105
106 INTLEVEL_EXTERNAL_MIN = 20,
107 INTLEVEL_EXTERNAL_MAX = 34,
108
109 INTLEVEL_IRQ0 = 20,
110 INTLEVEL_IRQ1 = 21,
111 INTINDEX_ETHERNET = 0,
112 INTINDEX_SCSI = 1,
113 INTLEVEL_IRQ2 = 22,
114 INTLEVEL_IRQ3 = 23,
115
116 INTLEVEL_SERIAL = 33,
117
118 NumInterruptLevels = INTLEVEL_EXTERNAL_MAX
119 };
120
121#endif
122
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
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 };
132
133 // Constants Related to the number of registers
134
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;
140
141 const int NumIntRegs = NumIntArchRegs + NumPALShadowRegs;
142 const int NumFloatRegs = NumFloatArchRegs;
143 const int NumMiscRegs = NumMiscArchRegs;
144
145 const int TotalNumRegs = NumIntRegs + NumFloatRegs +
146 NumMiscRegs + NumInternalProcRegs;
147
148 const int TotalDataRegs = NumIntRegs + NumFloatRegs;
149
150 // semantically meaningful register indices
131 };
132
133 // Constants Related to the number of registers
134
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;
140
141 const int NumIntRegs = NumIntArchRegs + NumPALShadowRegs;
142 const int NumFloatRegs = NumFloatArchRegs;
143 const int NumMiscRegs = NumMiscArchRegs;
144
145 const int TotalNumRegs = NumIntRegs + NumFloatRegs +
146 NumMiscRegs + NumInternalProcRegs;
147
148 const int TotalDataRegs = NumIntRegs + NumFloatRegs;
149
150 // semantically meaningful register indices
151 const int ZeroReg = 31; // architecturally meaningful
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;
159
160 const int ArgumentReg[] = {16, 17, 18, 19, 20, 21};
161 const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int);
162
163 const int SyscallNumReg = ReturnValueReg;
164 const int SyscallPseudoReturnReg = ArgumentReg[4];
165 const int SyscallSuccessReg = 19;
166
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;
159
160 const int ArgumentReg[] = {16, 17, 18, 19, 20, 21};
161 const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int);
162
163 const int SyscallNumReg = ReturnValueReg;
164 const int SyscallPseudoReturnReg = ArgumentReg[4];
165 const int SyscallSuccessReg = 19;
166
167 const int LogVMPageSize = 13; // 8K bytes
167 const int LogVMPageSize = 13; // 8K bytes
168 const int VMPageSize = (1 << LogVMPageSize);
169
170 const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned
171
172 const int MachineBytes = 8;
173 const int WordBytes = 4;
174 const int HalfwordBytes = 2;
175 const int ByteBytes = 1;
176
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
183#endif // __ARCH_ALPHA_ISA_TRAITS_HH__
168 const int VMPageSize = (1 << LogVMPageSize);
169
170 const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned
171
172 const int MachineBytes = 8;
173 const int WordBytes = 4;
174 const int HalfwordBytes = 2;
175 const int ByteBytes = 1;
176
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
183#endif // __ARCH_ALPHA_ISA_TRAITS_HH__