1/*
2 * Copyright (c) 2009 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: Gabe Black
29 */
30
31#ifndef __ARCH_SPARC_ISA_HH__
32#define __ARCH_SPARC_ISA_HH__
33
34#include <ostream>
35#include <string>
36
37#include "arch/sparc/registers.hh"
38#include "arch/sparc/types.hh"
39#include "cpu/cpuevent.hh"
40#include "sim/sim_object.hh"
41
42class Checkpoint;
43class EventManager;
44struct SparcISAParams;
45class ThreadContext;
46
47namespace SparcISA
48{
49class ISA : public SimObject
50{
51 private:
52
53 /* ASR Registers */
54 // uint64_t y; // Y (used in obsolete multiplication)
55 // uint8_t ccr; // Condition Code Register
56 uint8_t asi; // Address Space Identifier
57 uint64_t tick; // Hardware clock-tick counter
58 uint8_t fprs; // Floating-Point Register State
59 uint64_t gsr; // General Status Register
60 uint64_t softint;
61 uint64_t tick_cmpr; // Hardware tick compare registers
62 uint64_t stick; // Hardware clock-tick counter
63 uint64_t stick_cmpr; // Hardware tick compare registers
64
65
66 /* Privileged Registers */
67 uint64_t tpc[MaxTL]; // Trap Program Counter (value from
68 // previous trap level)
69 uint64_t tnpc[MaxTL]; // Trap Next Program Counter (value from
70 // previous trap level)
71 uint64_t tstate[MaxTL]; // Trap State
72 uint16_t tt[MaxTL]; // Trap Type (Type of trap which occured
73 // on the previous level)
74 uint64_t tba; // Trap Base Address
75
76 PSTATE pstate; // Process State Register
77 uint8_t tl; // Trap Level
78 uint8_t pil; // Process Interrupt Register
79 uint8_t cwp; // Current Window Pointer
80 // uint8_t cansave; // Savable windows
81 // uint8_t canrestore; // Restorable windows
82 // uint8_t cleanwin; // Clean windows
83 // uint8_t otherwin; // Other windows
84 // uint8_t wstate; // Window State
85 uint8_t gl; // Global level register
86
87 /** Hyperprivileged Registers */
88 HPSTATE hpstate; // Hyperprivileged State Register
89 uint64_t htstate[MaxTL];// Hyperprivileged Trap State Register
90 uint64_t hintp;
91 uint64_t htba; // Hyperprivileged Trap Base Address register
92 uint64_t hstick_cmpr; // Hardware tick compare registers
93
94 uint64_t strandStatusReg;// Per strand status register
95
96 /** Floating point misc registers. */
97 uint64_t fsr; // Floating-Point State Register
98
99 /** MMU Internal Registers */
100 uint16_t priContext;
101 uint16_t secContext;
102 uint16_t partId;
103 uint64_t lsuCtrlReg;
104
105 uint64_t scratchPad[8];
106
107 uint64_t cpu_mondo_head;
108 uint64_t cpu_mondo_tail;
109 uint64_t dev_mondo_head;
110 uint64_t dev_mondo_tail;
111 uint64_t res_error_head;
112 uint64_t res_error_tail;
113 uint64_t nres_error_head;
114 uint64_t nres_error_tail;
115
116 // These need to check the int_dis field and if 0 then
117 // set appropriate bit in softint and checkinterrutps on the cpu
118 void setFSReg(int miscReg, const MiscReg &val, ThreadContext *tc);
119 MiscReg readFSReg(int miscReg, ThreadContext * tc);
120
121 // Update interrupt state on softint or pil change
122 void checkSoftInt(ThreadContext *tc);
123
124 /** Process a tick compare event and generate an interrupt on the cpu if
125 * appropriate. */
126 void processTickCompare(ThreadContext *tc);
127 void processSTickCompare(ThreadContext *tc);
128 void processHSTickCompare(ThreadContext *tc);
129
130 typedef CpuEventWrapper<ISA,
131 &ISA::processTickCompare> TickCompareEvent;
132 TickCompareEvent *tickCompare;
133
134 typedef CpuEventWrapper<ISA,
135 &ISA::processSTickCompare> STickCompareEvent;
136 STickCompareEvent *sTickCompare;
137
138 typedef CpuEventWrapper<ISA,
139 &ISA::processHSTickCompare> HSTickCompareEvent;
140 HSTickCompareEvent *hSTickCompare;
141
142 static const int NumGlobalRegs = 8;
143 static const int NumWindowedRegs = 24;
144 static const int WindowOverlap = 8;
145
146 static const int TotalGlobals = (MaxGL + 1) * NumGlobalRegs;
147 static const int RegsPerWindow = NumWindowedRegs - WindowOverlap;
148 static const int TotalWindowed = NWindows * RegsPerWindow;
149
150 enum InstIntRegOffsets {
151 CurrentGlobalsOffset = 0,
152 CurrentWindowOffset = CurrentGlobalsOffset + NumGlobalRegs,
153 MicroIntOffset = CurrentWindowOffset + NumWindowedRegs,
154 NextGlobalsOffset = MicroIntOffset + NumMicroIntRegs,
155 NextWindowOffset = NextGlobalsOffset + NumGlobalRegs,
156 PreviousGlobalsOffset = NextWindowOffset + NumWindowedRegs,
157 PreviousWindowOffset = PreviousGlobalsOffset + NumGlobalRegs,
158 TotalInstIntRegs = PreviousWindowOffset + NumWindowedRegs
159 };
160
161 RegIndex intRegMap[TotalInstIntRegs];
162 void installWindow(int cwp, int offset);
163 void installGlobals(int gl, int offset);
164 void reloadRegMap();
165
166 public:
167
168 void clear();
169
170 void serialize(std::ostream & os);
171
172 void unserialize(Checkpoint *cp, const std::string & section);
173
174 void startup(ThreadContext *tc) {}
175
176 /// Explicitly import the otherwise hidden startup
177 using SimObject::startup;
178
179 protected:
180
181 bool isHyperPriv() { return hpstate.hpriv; }
182 bool isPriv() { return hpstate.hpriv || pstate.priv; }
183 bool isNonPriv() { return !isPriv(); }
184
185 public:
186
187 MiscReg readMiscRegNoEffect(int miscReg);
188 MiscReg readMiscReg(int miscReg, ThreadContext *tc);
189
190 void setMiscRegNoEffect(int miscReg, const MiscReg val);
191 void setMiscReg(int miscReg, const MiscReg val,
192 ThreadContext *tc);
193
194 int
195 flattenIntIndex(int reg)
196 {
197 assert(reg < TotalInstIntRegs);
198 RegIndex flatIndex = intRegMap[reg];
199 assert(flatIndex < NumIntRegs);
200 return flatIndex;
201 }
202
203 int
204 flattenFloatIndex(int reg)
205 {
206 return reg;
207 }
208
| 1/*
2 * Copyright (c) 2009 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: Gabe Black
29 */
30
31#ifndef __ARCH_SPARC_ISA_HH__
32#define __ARCH_SPARC_ISA_HH__
33
34#include <ostream>
35#include <string>
36
37#include "arch/sparc/registers.hh"
38#include "arch/sparc/types.hh"
39#include "cpu/cpuevent.hh"
40#include "sim/sim_object.hh"
41
42class Checkpoint;
43class EventManager;
44struct SparcISAParams;
45class ThreadContext;
46
47namespace SparcISA
48{
49class ISA : public SimObject
50{
51 private:
52
53 /* ASR Registers */
54 // uint64_t y; // Y (used in obsolete multiplication)
55 // uint8_t ccr; // Condition Code Register
56 uint8_t asi; // Address Space Identifier
57 uint64_t tick; // Hardware clock-tick counter
58 uint8_t fprs; // Floating-Point Register State
59 uint64_t gsr; // General Status Register
60 uint64_t softint;
61 uint64_t tick_cmpr; // Hardware tick compare registers
62 uint64_t stick; // Hardware clock-tick counter
63 uint64_t stick_cmpr; // Hardware tick compare registers
64
65
66 /* Privileged Registers */
67 uint64_t tpc[MaxTL]; // Trap Program Counter (value from
68 // previous trap level)
69 uint64_t tnpc[MaxTL]; // Trap Next Program Counter (value from
70 // previous trap level)
71 uint64_t tstate[MaxTL]; // Trap State
72 uint16_t tt[MaxTL]; // Trap Type (Type of trap which occured
73 // on the previous level)
74 uint64_t tba; // Trap Base Address
75
76 PSTATE pstate; // Process State Register
77 uint8_t tl; // Trap Level
78 uint8_t pil; // Process Interrupt Register
79 uint8_t cwp; // Current Window Pointer
80 // uint8_t cansave; // Savable windows
81 // uint8_t canrestore; // Restorable windows
82 // uint8_t cleanwin; // Clean windows
83 // uint8_t otherwin; // Other windows
84 // uint8_t wstate; // Window State
85 uint8_t gl; // Global level register
86
87 /** Hyperprivileged Registers */
88 HPSTATE hpstate; // Hyperprivileged State Register
89 uint64_t htstate[MaxTL];// Hyperprivileged Trap State Register
90 uint64_t hintp;
91 uint64_t htba; // Hyperprivileged Trap Base Address register
92 uint64_t hstick_cmpr; // Hardware tick compare registers
93
94 uint64_t strandStatusReg;// Per strand status register
95
96 /** Floating point misc registers. */
97 uint64_t fsr; // Floating-Point State Register
98
99 /** MMU Internal Registers */
100 uint16_t priContext;
101 uint16_t secContext;
102 uint16_t partId;
103 uint64_t lsuCtrlReg;
104
105 uint64_t scratchPad[8];
106
107 uint64_t cpu_mondo_head;
108 uint64_t cpu_mondo_tail;
109 uint64_t dev_mondo_head;
110 uint64_t dev_mondo_tail;
111 uint64_t res_error_head;
112 uint64_t res_error_tail;
113 uint64_t nres_error_head;
114 uint64_t nres_error_tail;
115
116 // These need to check the int_dis field and if 0 then
117 // set appropriate bit in softint and checkinterrutps on the cpu
118 void setFSReg(int miscReg, const MiscReg &val, ThreadContext *tc);
119 MiscReg readFSReg(int miscReg, ThreadContext * tc);
120
121 // Update interrupt state on softint or pil change
122 void checkSoftInt(ThreadContext *tc);
123
124 /** Process a tick compare event and generate an interrupt on the cpu if
125 * appropriate. */
126 void processTickCompare(ThreadContext *tc);
127 void processSTickCompare(ThreadContext *tc);
128 void processHSTickCompare(ThreadContext *tc);
129
130 typedef CpuEventWrapper<ISA,
131 &ISA::processTickCompare> TickCompareEvent;
132 TickCompareEvent *tickCompare;
133
134 typedef CpuEventWrapper<ISA,
135 &ISA::processSTickCompare> STickCompareEvent;
136 STickCompareEvent *sTickCompare;
137
138 typedef CpuEventWrapper<ISA,
139 &ISA::processHSTickCompare> HSTickCompareEvent;
140 HSTickCompareEvent *hSTickCompare;
141
142 static const int NumGlobalRegs = 8;
143 static const int NumWindowedRegs = 24;
144 static const int WindowOverlap = 8;
145
146 static const int TotalGlobals = (MaxGL + 1) * NumGlobalRegs;
147 static const int RegsPerWindow = NumWindowedRegs - WindowOverlap;
148 static const int TotalWindowed = NWindows * RegsPerWindow;
149
150 enum InstIntRegOffsets {
151 CurrentGlobalsOffset = 0,
152 CurrentWindowOffset = CurrentGlobalsOffset + NumGlobalRegs,
153 MicroIntOffset = CurrentWindowOffset + NumWindowedRegs,
154 NextGlobalsOffset = MicroIntOffset + NumMicroIntRegs,
155 NextWindowOffset = NextGlobalsOffset + NumGlobalRegs,
156 PreviousGlobalsOffset = NextWindowOffset + NumWindowedRegs,
157 PreviousWindowOffset = PreviousGlobalsOffset + NumGlobalRegs,
158 TotalInstIntRegs = PreviousWindowOffset + NumWindowedRegs
159 };
160
161 RegIndex intRegMap[TotalInstIntRegs];
162 void installWindow(int cwp, int offset);
163 void installGlobals(int gl, int offset);
164 void reloadRegMap();
165
166 public:
167
168 void clear();
169
170 void serialize(std::ostream & os);
171
172 void unserialize(Checkpoint *cp, const std::string & section);
173
174 void startup(ThreadContext *tc) {}
175
176 /// Explicitly import the otherwise hidden startup
177 using SimObject::startup;
178
179 protected:
180
181 bool isHyperPriv() { return hpstate.hpriv; }
182 bool isPriv() { return hpstate.hpriv || pstate.priv; }
183 bool isNonPriv() { return !isPriv(); }
184
185 public:
186
187 MiscReg readMiscRegNoEffect(int miscReg);
188 MiscReg readMiscReg(int miscReg, ThreadContext *tc);
189
190 void setMiscRegNoEffect(int miscReg, const MiscReg val);
191 void setMiscReg(int miscReg, const MiscReg val,
192 ThreadContext *tc);
193
194 int
195 flattenIntIndex(int reg)
196 {
197 assert(reg < TotalInstIntRegs);
198 RegIndex flatIndex = intRegMap[reg];
199 assert(flatIndex < NumIntRegs);
200 return flatIndex;
201 }
202
203 int
204 flattenFloatIndex(int reg)
205 {
206 return reg;
207 }
208
|