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-rw-r--r--src/arch/sparc/asi.cc27
-rw-r--r--src/arch/sparc/faults.cc63
-rw-r--r--src/arch/sparc/isa/decoder.isa9
-rw-r--r--src/arch/sparc/tlb.cc14
-rw-r--r--src/arch/sparc/ua2005.cc2
5 files changed, 39 insertions, 76 deletions
diff --git a/src/arch/sparc/asi.cc b/src/arch/sparc/asi.cc
index a9a778ff6..3d553955f 100644
--- a/src/arch/sparc/asi.cc
+++ b/src/arch/sparc/asi.cc
@@ -179,26 +179,23 @@ namespace SparcISA
(asi == ASI_LDTX_PL) ||
(asi == ASI_LDTX_SL) ||
(asi == ASI_BLK_PL) ||
- (asi == ASI_BLK_SL);
+ (asi == ASI_BLK_SL) ||
+ (asi == ASI_LTX_L);
}
bool AsiIsTwin(ASI asi)
{
return
- (asi == ASI_QUAD_LDD) ||
- (asi == ASI_LDTX_AIUP) ||
- (asi == ASI_LDTX_AIUS) ||
- (asi == ASI_LDTX_REAL) ||
- (asi == ASI_LDTX_N) ||
- (asi == ASI_LDTX_AIUP_L) ||
- (asi == ASI_LDTX_AIUS_L) ||
- (asi == ASI_LDTX_REAL_L) ||
- (asi == ASI_LDTX_NL) ||
- (asi == ASI_LDTX_P) ||
- (asi == ASI_LDTX_S) ||
- (asi == ASI_LDTX_PL) ||
- (asi == ASI_LDTX_SL) ||
- (asi == ASI_LTX_L);
+ (asi >= ASI_LDTX_AIUP &&
+ asi <= ASI_LDTX_N &&
+ asi != ASI_QUEUE) ||
+ (asi >= ASI_LDTX_AIUP_L &&
+ asi <= ASI_LDTX_NL &&
+ asi != 0x2D) ||
+ asi == ASI_LDTX_P ||
+ asi == ASI_LDTX_S ||
+ asi == ASI_LDTX_PL ||
+ asi == ASI_LDTX_SL;
}
bool AsiIsPartialStore(ASI asi)
diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index a74eebafa..b465e52d2 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -340,22 +340,8 @@ void doREDFault(ThreadContext *tc, TrapType tt)
//Update GL
tc->setMiscRegWithEffect(MISCREG_GL, min<int>(GL+1, MaxGL));
- //set PSTATE.mm to 00
- //set PSTATE.pef to 1
- PSTATE |= (1 << 4);
- //set PSTATE.am to 0
- PSTATE &= ~(1 << 3);
-/* //set PSTATE.priv to 0
- PSTATE &= ~(1 << 2);*/
- //set PSTATE.ie to 0
- //PSTATE.priv is set to 1 here. The manual says it should be 0, but
- //Legion sets it to 1.
- PSTATE |= (1 << 2);
- //set PSTATE.cle to 0
- PSTATE &= ~(1 << 9);
- //PSTATE.tle is unchanged
- //XXX Where is the tct bit?
- //set PSTATE.tct to 0
+ PSTATE = mbits(PSTATE, 2, 2); // just save the priv bit
+ PSTATE |= (1 << 4); //set PSTATE.pef to 1
tc->setMiscReg(MISCREG_PSTATE, PSTATE);
//set HPSTATE.red to 1
@@ -442,46 +428,27 @@ void doNormalFault(ThreadContext *tc, TrapType tt, bool gotoHpriv)
tc->setMiscRegWithEffect(MISCREG_GL, min<int>(GL+1, MaxGL));
//PSTATE.mm is unchanged
- //PSTATE.pef = whether or not an fpu is present
- //XXX We'll say there's one present, even though there aren't
- //implementations for a decent number of the instructions
- PSTATE |= (1 << 4);
- //PSTATE.am = 0
- PSTATE &= ~(1 << 3);
- if (!gotoHpriv)
- {
- //PSTATE.priv = 1
- PSTATE |= (1 << 2);
- //PSTATE.cle = PSTATE.tle
- replaceBits(PSTATE, 9, 9, PSTATE >> 8);
- }
- else
- {
- //PSTATE.priv = 0
- //PSTATE.priv is set to 1 here. The manual says it should be 0, but
- //Legion sets it to 1.
- PSTATE |= (1 << 2);
- //PSTATE.cle = 0
- PSTATE &= ~(1 << 9);
- }
- //PSTATE.ie = 0
- PSTATE &= ~(1 << 1);
+ PSTATE |= (1 << 4); //PSTATE.pef = whether or not an fpu is present
+ PSTATE &= ~(1 << 3); //PSTATE.am = 0
+ PSTATE &= ~(1 << 1); //PSTATE.ie = 0
//PSTATE.tle is unchanged
//PSTATE.tct = 0
- //XXX Where exactly is this field?
- tc->setMiscReg(MISCREG_PSTATE, PSTATE);
if (gotoHpriv)
{
- //HPSTATE.red = 0
- HPSTATE &= ~(1 << 5);
- //HPSTATE.hpriv = 1
- HPSTATE |= (1 << 2);
- //HPSTATE.ibe = 0
- HPSTATE &= ~(1 << 10);
+ PSTATE &= ~(1 << 9); // PSTATE.cle = 0
+ //The manual says PSTATE.priv should be 0, but Legion leaves it alone
+ HPSTATE &= ~(1 << 5); //HPSTATE.red = 0
+ HPSTATE |= (1 << 2); //HPSTATE.hpriv = 1
+ HPSTATE &= ~(1 << 10); //HPSTATE.ibe = 0
//HPSTATE.tlz is unchanged
tc->setMiscReg(MISCREG_HPSTATE, HPSTATE);
+ } else { // we are going to priv
+ PSTATE |= (1 << 2); //PSTATE.priv = 1
+ replaceBits(PSTATE, 9, 9, PSTATE >> 8); //PSTATE.cle = PSTATE.tle
}
+ tc->setMiscReg(MISCREG_PSTATE, PSTATE);
+
bool changedCWP = true;
if (tt == 0x24)
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index dafdc96f6..175866eba 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -1061,6 +1061,12 @@ decode OP default Unknown::unknown()
0x11: lduba({{Rd = Mem.ub;}}, {{EXT_ASI}});
0x12: lduha({{Rd = Mem.uhw;}}, {{EXT_ASI}});
0x13: decode EXT_ASI {
+ //ASI_LDTD_AIUP
+ 0x22: TwinLoad::ldtx_aiup(
+ {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+ //ASI_LDTD_AIUS
+ 0x23: TwinLoad::ldtx_aius(
+ {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
//ASI_QUAD_LDD
0x24: TwinLoad::ldtx_quad_ldd(
{{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
@@ -1082,6 +1088,9 @@ decode OP default Unknown::unknown()
//ASI_LDTX_P
0xE2: TwinLoad::ldtx_p(
{{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+ //ASI_LDTX_S
+ 0xE3: TwinLoad::ldtx_s(
+ {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
default: ldtwa({{
uint64_t val = Mem.udw;
RdLow = val<31:0>;
diff --git a/src/arch/sparc/tlb.cc b/src/arch/sparc/tlb.cc
index e3ac26612..1a2ec6eac 100644
--- a/src/arch/sparc/tlb.cc
+++ b/src/arch/sparc/tlb.cc
@@ -662,7 +662,7 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
}
}
- if (!implicit) {
+ if (!implicit && asi != ASI_P && asi != ASI_S) {
if (AsiIsLittle(asi))
panic("Little Endian ASIs not supported\n");
if (AsiIsBlock(asi))
@@ -670,14 +670,6 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
if (AsiIsNoFault(asi))
panic("No Fault ASIs not supported\n");
- // These twin ASIs are OK
- if (asi == ASI_P || asi == ASI_LDTX_P)
- goto continueDtbFlow;
- if (!write && (asi == ASI_QUAD_LDD || asi == ASI_LDTX_REAL))
- goto continueDtbFlow;
-
- if (AsiIsTwin(asi))
- panic("Twin ASIs not supported\n");
if (AsiIsPartialStore(asi))
panic("Partial Store ASIs not supported\n");
if (AsiIsInterrupt(asi))
@@ -692,11 +684,11 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
if (AsiIsSparcError(asi))
goto handleSparcErrorRegAccess;
- if (!AsiIsReal(asi) && !AsiIsNucleus(asi) && !AsiIsAsIfUser(asi))
+ if (!AsiIsReal(asi) && !AsiIsNucleus(asi) && !AsiIsAsIfUser(asi) &&
+ !AsiIsTwin(asi))
panic("Accessing ASI %#X. Should we?\n", asi);
}
-continueDtbFlow:
// If the asi is unaligned trap
if (vaddr & size-1) {
writeSfr(tc, vaddr, false, ct, false, OtherFault, asi);
diff --git a/src/arch/sparc/ua2005.cc b/src/arch/sparc/ua2005.cc
index 6220e6dec..00a44275c 100644
--- a/src/arch/sparc/ua2005.cc
+++ b/src/arch/sparc/ua2005.cc
@@ -43,8 +43,6 @@ MiscRegFile::setFSRegWithEffect(int miscReg, const MiscReg &val,
/* Full system only ASRs */
case MISCREG_SOFTINT:
setReg(miscReg, val);;
- if (val != 0x10000 && val != 0)
- warn("Writing to softint not really supported, writing: %#x\n", val);
break;
case MISCREG_SOFTINT_CLR:
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 04:53:53 +0000