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Assign traceData to be NULL at BaseSimpleCPU constructor.

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Initialize a temporary variable for thread->readPC() at setupFetchRequest() to reduce function calls.
exec tracing isn't needed for m5.fast binaries
Moved MISCREG_GL, MISCREG_CWP, and MISCREG_TLB_DATA out of switch statement and use if blocks instead.

src/arch/sparc/miscregfile.cc:
    Moved MISCREG_GL, MISCREG_CWP, and MISCREG_TLB_DATA out of switch statement and use if blocks instead.
src/cpu/simple/base.cc:
    Assign traceData to be NULL at BaseSimpleCPU constructor.
    Initialize a temporary variable for thread->readPC() at setupFetchRequest() to reduce function calls.
    exec tracing isn't needed for m5.fast binaries

--HG--
extra : convert_revision : 5dc92fff05c9bde994f1e0f1bb40e11c44eb72c6
This commit is contained in:
Vincentius Robby 2007-05-31 16:01:41 -04:00
parent 0193476ea7
commit ecf1eb7248
2 changed files with 46 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

60
src/arch/sparc/miscregfile.cc
View file

@ -142,27 +142,38 @@ void MiscRegFile::clear()
MiscReg MiscRegFile::readRegNoEffect(int miscReg)
{
switch (miscReg) {
case MISCREG_TLB_DATA:
/* Package up all the data for the tlb:
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
* secContext | priContext | |tl|partid| |||||^hpriv
* ||||^red
* |||^priv
* ||^am
* |^lsuim
* ^lsudm
*/
return bits((uint64_t)hpstate,2,2) |
bits((uint64_t)hpstate,5,5) << 1 |
bits((uint64_t)pstate,3,2) << 2 |
bits((uint64_t)lsuCtrlReg,3,2) << 4 |
bits((uint64_t)partId,7,0) << 8 |
bits((uint64_t)tl,2,0) << 16 |
(uint64_t)priContext << 32 |
(uint64_t)secContext << 48;
// The three miscRegs are moved up from the switch statement
// due to more frequent calls.
if (miscReg == MISCREG_GL)
return gl;
if (miscReg == MISCREG_CWP)
return cwp;
if (miscReg == MISCREG_TLB_DATA) {
/* Package up all the data for the tlb:
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
* secContext | priContext | |tl|partid| |||||^hpriv
* ||||^red
* |||^priv
* ||^am
* |^lsuim
* ^lsudm
*/
return bits((uint64_t)hpstate,2,2) |
bits((uint64_t)hpstate,5,5) << 1 |
bits((uint64_t)pstate,3,2) << 2 |
bits((uint64_t)lsuCtrlReg,3,2) << 4 |
bits((uint64_t)partId,7,0) << 8 |
bits((uint64_t)tl,2,0) << 16 |
(uint64_t)priContext << 32 |
(uint64_t)secContext << 48;
}
switch (miscReg) {
//case MISCREG_TLB_DATA:
// [original contents see above]
//case MISCREG_Y:
// return y;
//case MISCREG_CCR:
@ -207,8 +218,9 @@ MiscReg MiscRegFile::readRegNoEffect(int miscReg)
return tl;
case MISCREG_PIL:
return pil;
case MISCREG_CWP:
return cwp;
//CWP, GL moved
//case MISCREG_CWP:
// return cwp;
//case MISCREG_CANSAVE:
// return cansave;
//case MISCREG_CANRESTORE:
@ -219,8 +231,8 @@ MiscReg MiscRegFile::readRegNoEffect(int miscReg)
// return otherwin;
//case MISCREG_WSTATE:
// return wstate;
case MISCREG_GL:
return gl;
//case MISCREG_GL:
// return gl;
/** Hyper privileged registers */
case MISCREG_HPSTATE:

16
src/cpu/simple/base.cc
View file

@ -70,7 +70,7 @@ using namespace std;
using namespace TheISA;
BaseSimpleCPU::BaseSimpleCPU(Params *p)
: BaseCPU(p), thread(NULL), predecoder(NULL)
: BaseCPU(p), traceData(NULL), thread(NULL), predecoder(NULL)
{
#if FULL_SYSTEM
thread = new SimpleThread(this, 0, p->system, p->itb, p->dtb);
@ -326,18 +326,20 @@ BaseSimpleCPU::checkForInterrupts()
Fault
BaseSimpleCPU::setupFetchRequest(Request *req)
{
uint64_t threadPC = thread->readPC();
// set up memory request for instruction fetch
#if ISA_HAS_DELAY_SLOT
DPRINTF(Fetch,"Fetch: PC:%08p NPC:%08p NNPC:%08p\n",thread->readPC(),
DPRINTF(Fetch,"Fetch: PC:%08p NPC:%08p NNPC:%08p\n",threadPC,
thread->readNextPC(),thread->readNextNPC());
#else
DPRINTF(Fetch,"Fetch: PC:%08p NPC:%08p",thread->readPC(),
DPRINTF(Fetch,"Fetch: PC:%08p NPC:%08p",threadPC,
thread->readNextPC());
#endif
req->setVirt(0, thread->readPC() & ~3, sizeof(MachInst),
(FULL_SYSTEM && (thread->readPC() & 1)) ? PHYSICAL : 0,
thread->readPC());
req->setVirt(0, threadPC & ~3, sizeof(MachInst),
(FULL_SYSTEM && (threadPC & 1)) ? PHYSICAL : 0,
threadPC);
Fault fault = thread->translateInstReq(req);
@ -396,6 +398,7 @@ BaseSimpleCPU::preExecute()
fetchMicroOp(thread->readMicroPC());
}
#if TRACING_ON
//If we decoded an instruction this "tick", record information about it.
if(curStaticInst)
{
@ -409,6 +412,7 @@ BaseSimpleCPU::preExecute()
thread->setInst(inst);
#endif // FULL_SYSTEM
}
#endif // TRACING_ON
}
void