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32 #include "arch/sparc/regfile.hh"
33 #include "cpu/thread_context.hh"
37 using namespace SparcISA
;
40 //RegFile class methods
41 Addr
RegFile::readPC()
46 void RegFile::setPC(Addr val
)
51 Addr
RegFile::readNextPC()
56 void RegFile::setNextPC(Addr val
)
61 Addr
RegFile::readNextNPC()
66 void RegFile::setNextNPC(Addr val
)
77 MiscReg
RegFile::readMiscReg(int miscReg
)
79 return miscRegFile
.readReg(miscReg
);
82 MiscReg
RegFile::readMiscRegWithEffect(int miscReg
,
83 Fault
&fault
, ThreadContext
*tc
)
85 return miscRegFile
.readRegWithEffect(miscReg
, fault
, tc
);
88 Fault
RegFile::setMiscReg(int miscReg
, const MiscReg
&val
)
90 return miscRegFile
.setReg(miscReg
, val
);
93 Fault
RegFile::setMiscRegWithEffect(int miscReg
, const MiscReg
&val
,
96 return miscRegFile
.setRegWithEffect(miscReg
, val
, tc
);
99 FloatReg
RegFile::readFloatReg(int floatReg
, int width
)
101 return floatRegFile
.readReg(floatReg
, width
);
104 FloatReg
RegFile::readFloatReg(int floatReg
)
106 //Use the "natural" width of a single float
107 return floatRegFile
.readReg(floatReg
, FloatRegFile::SingleWidth
);
110 FloatRegBits
RegFile::readFloatRegBits(int floatReg
, int width
)
112 return floatRegFile
.readRegBits(floatReg
, width
);
115 FloatRegBits
RegFile::readFloatRegBits(int floatReg
)
117 //Use the "natural" width of a single float
118 return floatRegFile
.readRegBits(floatReg
,
119 FloatRegFile::SingleWidth
);
122 Fault
RegFile::setFloatReg(int floatReg
, const FloatReg
&val
, int width
)
124 return floatRegFile
.setReg(floatReg
, val
, width
);
127 Fault
RegFile::setFloatReg(int floatReg
, const FloatReg
&val
)
129 //Use the "natural" width of a single float
130 return setFloatReg(floatReg
, val
, FloatRegFile::SingleWidth
);
133 Fault
RegFile::setFloatRegBits(int floatReg
, const FloatRegBits
&val
, int width
)
135 return floatRegFile
.setRegBits(floatReg
, val
, width
);
138 Fault
RegFile::setFloatRegBits(int floatReg
, const FloatRegBits
&val
)
140 //Use the "natural" width of a single float
141 return floatRegFile
.setRegBits(floatReg
, val
,
142 FloatRegFile::SingleWidth
);
145 IntReg
RegFile::readIntReg(int intReg
)
147 return intRegFile
.readReg(intReg
);
150 Fault
RegFile::setIntReg(int intReg
, const IntReg
&val
)
152 return intRegFile
.setReg(intReg
, val
);
155 void RegFile::serialize(std::ostream
&os
)
157 intRegFile
.serialize(os
);
158 floatRegFile
.serialize(os
);
159 miscRegFile
.serialize(os
);
160 SERIALIZE_SCALAR(pc
);
161 SERIALIZE_SCALAR(npc
);
164 void RegFile::unserialize(Checkpoint
*cp
, const std::string
§ion
)
166 intRegFile
.unserialize(cp
, section
);
167 floatRegFile
.unserialize(cp
, section
);
168 miscRegFile
.unserialize(cp
, section
);
169 UNSERIALIZE_SCALAR(pc
);
170 UNSERIALIZE_SCALAR(npc
);
173 void RegFile::changeContext(RegContextParam param
, RegContextVal val
)
178 intRegFile
.setCWP(val
);
180 case CONTEXT_GLOBALS
:
181 intRegFile
.setGlobals(val
);
184 panic("Tried to set illegal context parameter in the SPARC regfile.\n");
188 int SparcISA::InterruptLevel(uint64_t softint
)
190 if (softint
& 0x10000 || softint
& 0x1)
194 while (level
>= 0 && !(1 << (level
+ 1) & softint
))
196 if (1 << (level
+ 1) & softint
)
201 void SparcISA::copyMiscRegs(ThreadContext
*src
, ThreadContext
*dest
)
204 uint8_t tl
= src
->readMiscReg(MISCREG_TL
);
206 // Read all the trap level dependent registers and save them off
207 for(int i
= 1; i
<= MaxTL
; i
++)
209 src
->setMiscReg(MISCREG_TL
, i
);
210 dest
->setMiscReg(MISCREG_TL
, i
);
212 dest
->setMiscReg(MISCREG_TT
, src
->readMiscReg(MISCREG_TT
));
213 dest
->setMiscReg(MISCREG_TPC
, src
->readMiscReg(MISCREG_TPC
));
214 dest
->setMiscReg(MISCREG_TNPC
, src
->readMiscReg(MISCREG_TNPC
));
215 dest
->setMiscReg(MISCREG_TSTATE
, src
->readMiscReg(MISCREG_TSTATE
));
218 // Save off the traplevel
219 dest
->setMiscReg(MISCREG_TL
, tl
);
220 src
->setMiscReg(MISCREG_TL
, tl
);
224 dest
->setMiscReg(MISCREG_Y
, src
->readMiscReg(MISCREG_Y
));
225 dest
->setMiscReg(MISCREG_CCR
, src
->readMiscReg(MISCREG_CCR
));
226 dest
->setMiscReg(MISCREG_ASI
, src
->readMiscReg(MISCREG_ASI
));
227 dest
->setMiscReg(MISCREG_TICK
, src
->readMiscReg(MISCREG_TICK
));
228 dest
->setMiscReg(MISCREG_FPRS
, src
->readMiscReg(MISCREG_FPRS
));
229 dest
->setMiscReg(MISCREG_SOFTINT
, src
->readMiscReg(MISCREG_SOFTINT
));
230 dest
->setMiscReg(MISCREG_TICK_CMPR
, src
->readMiscReg(MISCREG_TICK_CMPR
));
231 dest
->setMiscReg(MISCREG_STICK
, src
->readMiscReg(MISCREG_STICK
));
232 dest
->setMiscReg(MISCREG_STICK_CMPR
, src
->readMiscReg(MISCREG_STICK_CMPR
));
235 dest
->setMiscReg(MISCREG_TICK
, src
->readMiscReg(MISCREG_TICK
));
236 dest
->setMiscReg(MISCREG_TBA
, src
->readMiscReg(MISCREG_TBA
));
237 dest
->setMiscReg(MISCREG_PSTATE
, src
->readMiscReg(MISCREG_PSTATE
));
238 dest
->setMiscReg(MISCREG_PIL
, src
->readMiscReg(MISCREG_PIL
));
239 dest
->setMiscReg(MISCREG_CWP
, src
->readMiscReg(MISCREG_CWP
));
240 dest
->setMiscReg(MISCREG_CANSAVE
, src
->readMiscReg(MISCREG_CANSAVE
));
241 dest
->setMiscReg(MISCREG_CANRESTORE
, src
->readMiscReg(MISCREG_CANRESTORE
));
242 dest
->setMiscReg(MISCREG_OTHERWIN
, src
->readMiscReg(MISCREG_OTHERWIN
));
243 dest
->setMiscReg(MISCREG_CLEANWIN
, src
->readMiscReg(MISCREG_CLEANWIN
));
244 dest
->setMiscReg(MISCREG_WSTATE
, src
->readMiscReg(MISCREG_WSTATE
));
245 dest
->setMiscReg(MISCREG_GL
, src
->readMiscReg(MISCREG_GL
));
247 // Hyperprivilged registers
248 dest
->setMiscReg(MISCREG_HPSTATE
, src
->readMiscReg(MISCREG_HPSTATE
));
249 dest
->setMiscReg(MISCREG_HINTP
, src
->readMiscReg(MISCREG_HINTP
));
250 dest
->setMiscReg(MISCREG_HTBA
, src
->readMiscReg(MISCREG_HTBA
));
251 dest
->setMiscReg(MISCREG_STRAND_STS_REG
,
252 src
->readMiscReg(MISCREG_STRAND_STS_REG
));
253 dest
->setMiscReg(MISCREG_HSTICK_CMPR
,
254 src
->readMiscReg(MISCREG_HSTICK_CMPR
));
257 dest
->setMiscReg(MISCREG_FSR
, src
->readMiscReg(MISCREG_FSR
));
260 void SparcISA::copyRegs(ThreadContext
*src
, ThreadContext
*dest
)
262 // First loop through the integer registers.
263 for (int i
= 0; i
< TheISA::NumIntRegs
; ++i
) {
264 dest
->setIntReg(i
, src
->readIntReg(i
));
267 // Then loop through the floating point registers.
268 for (int i
= 0; i
< TheISA::NumFloatRegs
; ++i
) {
269 dest
->setFloatRegBits(i
, src
->readFloatRegBits(i
));
272 // Copy misc. registers
273 copyMiscRegs(src
, dest
);
275 // Lastly copy PC/NPC
276 dest
->setPC(src
->readPC());
277 dest
->setNextPC(src
->readNextPC());
278 dest
->setNextNPC(src
->readNextNPC());