diff options
Diffstat (limited to 'src/arch/sparc/ua2005.cc')
| -rw-r--r-- | src/arch/sparc/ua2005.cc | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/arch/sparc/ua2005.cc b/src/arch/sparc/ua2005.cc index c7d2ffce5..1f7f65045 100644 --- a/src/arch/sparc/ua2005.cc +++ b/src/arch/sparc/ua2005.cc @@ -51,9 +51,9 @@ MiscRegFile::setFSRegWithEffect(int miscReg, const MiscReg &val, break; case MISCREG_SOFTINT_CLR: - return setRegWithEffect(miscReg, ~val & softint, tc); + return setRegWithEffect(MISCREG_SOFTINT, ~val & softint, tc); case MISCREG_SOFTINT_SET: - return setRegWithEffect(miscReg, val | softint, tc); + return setRegWithEffect(MISCREG_SOFTINT, val | softint, tc); case MISCREG_TICK_CMPR: if (tickCompare == NULL) @@ -119,11 +119,11 @@ MiscRegFile::setFSRegWithEffect(int miscReg, const MiscReg &val, setReg(miscReg, val); if ((hstick_cmpr & ~mask(63)) && hSTickCompare->scheduled()) hSTickCompare->deschedule(); - time = ((int64_t)(hstick_cmpr & mask(63)) + (int64_t)stick) - + time = ((int64_t)(hstick_cmpr & mask(63)) - (int64_t)stick) - tc->getCpuPtr()->instCount(); if (!(hstick_cmpr & ~mask(63)) && time > 0) hSTickCompare->schedule(curTick + time * tc->getCpuPtr()->cycles(1)); - warn ("writing to hsTICK compare register value %#X\n", val); + DPRINTF(Timer, "writing to hsTICK compare register value %#X\n", val); break; case MISCREG_HPSTATE: @@ -213,6 +213,20 @@ MiscRegFile::processSTickCompare(ThreadContext *tc) void MiscRegFile::processHSTickCompare(ThreadContext *tc) { - panic("hstick compare not implemented\n"); + // since our microcode instructions take two cycles we need to check if + // we're actually at the correct cycle or we need to wait a little while + // more + int ticks; + ticks = ((int64_t)(hstick_cmpr & mask(63)) - (int64_t)stick) - + tc->getCpuPtr()->instCount(); + assert(ticks >= 0 && "hstick compare missed interrupt cycle"); + + if (ticks == 0) { + DPRINTF(Timer, "HSTick compare cycle reached at %#x\n", + (stick_cmpr & mask(63))); + tc->getCpuPtr()->checkInterrupts = true; + // Need to do something to cause interrupt to happen here !!! @todo + } else + sTickCompare->schedule(ticks * tc->getCpuPtr()->cycles(1) + curTick); } |