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-rw-r--r--src/arch/sparc/floatregfile.cc6
-rw-r--r--src/arch/sparc/isa/base.isa26
-rw-r--r--src/arch/sparc/isa/decoder.isa25
-rw-r--r--src/arch/sparc/isa/formats/basic.isa1
-rw-r--r--src/arch/sparc/isa/formats/mem/util.isa6
-rw-r--r--src/cpu/exetrace.cc54
-rw-r--r--src/cpu/m5legion_interface.h5
7 files changed, 81 insertions, 42 deletions
diff --git a/src/arch/sparc/floatregfile.cc b/src/arch/sparc/floatregfile.cc
index 7f3d5a758..1bb78c67b 100644
--- a/src/arch/sparc/floatregfile.cc
+++ b/src/arch/sparc/floatregfile.cc
@@ -72,16 +72,19 @@ FloatReg FloatRegFile::readReg(int floatReg, int width)
float32_t result32;
memcpy(&result32, regSpace + 4 * floatReg, sizeof(result32));
result = htog(result32);
+ DPRINTF(Sparc, "Read FP32 register %d = 0x%x\n", floatReg, result);
break;
case DoubleWidth:
float64_t result64;
memcpy(&result64, regSpace + 4 * floatReg, sizeof(result64));
result = htog(result64);
+ DPRINTF(Sparc, "Read FP64 register %d = 0x%x\n", floatReg, result);
break;
case QuadWidth:
float128_t result128;
memcpy(&result128, regSpace + 4 * floatReg, sizeof(result128));
result = htog(result128);
+ DPRINTF(Sparc, "Read FP128 register %d = 0x%x\n", floatReg, result);
break;
default:
panic("Attempted to read a %d bit floating point register!", width);
@@ -101,16 +104,19 @@ FloatRegBits FloatRegFile::readRegBits(int floatReg, int width)
uint32_t result32;
memcpy(&result32, regSpace + 4 * floatReg, sizeof(result32));
result = htog(result32);
+ DPRINTF(Sparc, "Read FP32 bits register %d = 0x%x\n", floatReg, result);
break;
case DoubleWidth:
uint64_t result64;
memcpy(&result64, regSpace + 4 * floatReg, sizeof(result64));
result = htog(result64);
+ DPRINTF(Sparc, "Read FP64 bits register %d = 0x%x\n", floatReg, result);
break;
case QuadWidth:
uint64_t result128;
memcpy(&result128, regSpace + 4 * floatReg, sizeof(result128));
result = htog(result128);
+ DPRINTF(Sparc, "Read FP128 bits register %d = 0x%x\n", floatReg, result);
break;
default:
panic("Attempted to read a %d bit floating point register!", width);
diff --git a/src/arch/sparc/isa/base.isa b/src/arch/sparc/isa/base.isa
index 4a806bfd0..5b65ec288 100644
--- a/src/arch/sparc/isa/base.isa
+++ b/src/arch/sparc/isa/base.isa
@@ -1,4 +1,4 @@
-// Copyright (c) 2006 The Regents of The University of Michigan
+// Copyright (c) 2006-2007 The Regents of The University of Michigan
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
@@ -290,3 +290,27 @@ output decoder {{
}
}};
+output exec {{
+ /// Check "FP enabled" machine status bit. Called when executing any FP
+ /// instruction in full-system mode.
+ /// @retval Full-system mode: NoFault if FP is enabled, FpDisabled
+ /// if not. Non-full-system mode: always returns NoFault.
+#if FULL_SYSTEM
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ Fault fault = NoFault; // dummy... this ipr access should not fault
+ if (xc->readMiscRegWithEffect(MISCREG_PSTATE) & PSTATE::pef &&
+ xc->readMiscRegWithEffect(MISCREG_FPRS) & 0x4)
+ return NoFault;
+ else
+ return new FpDisabled;
+ }
+#else
+ inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc)
+ {
+ return NoFault;
+ }
+#endif
+}};
+
+
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index eae195a87..32256a04e 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -186,7 +186,7 @@ decode OP default Unknown::unknown()
Y = Rd<63:32>;
}});
0x0B: smul({{
- Rd.sdw = sext<32>(Rs1.sdw) * sext<32>(Rs2_or_imm13);
+ Rd.sdw = sext<32>(Rs1.sdw<31:0>) * sext<32>(Rs2_or_imm13<31:0>);
Y = Rd.sdw<63:32>;
}});
0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 - Ccr<0:0>}});
@@ -246,8 +246,7 @@ decode OP default Unknown::unknown()
Rd = resTemp = Rs1 + val2 + carryin;}},
{{(Rs1<31:0> + val2<31:0> + carryin)<32:>}},
{{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}},
- {{(Rs1<63:1> + val2<63:1> +
- ((Rs1 & val2) | (carryin & (Rs1 | val2)))<0:>)<63:>}},
+ {{((Rs1 & val2) | (~resTemp & (Rs1 | val2)))<63:>}},
{{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
);
0x1A: umulcc({{
@@ -257,16 +256,16 @@ decode OP default Unknown::unknown()
{{0}},{{0}},{{0}},{{0}});
0x1B: smulcc({{
int64_t resTemp;
- Rd = resTemp = sext<32>(Rs1.sdw) * sext<32>(Rs2_or_imm13);
+ Rd = resTemp = sext<32>(Rs1.sdw<31:0>) * sext<32>(Rs2_or_imm13<31:0>);
Y = resTemp<63:32>;}},
{{0}},{{0}},{{0}},{{0}});
0x1C: subccc({{
int64_t resTemp, val2 = Rs2_or_imm13;
int64_t carryin = Ccr<0:0>;
Rd = resTemp = Rs1 + ~val2 + 1 - carryin;}},
- {{(~((Rs1<31:0> + (~(val2 + carryin))<31:0> + 1))<32:>)}},
+ {{((~Rs1 & val2) | (resTemp & (~Rs1 | val2)))<31:>}},
{{Rs1<31:> != val2<31:> && Rs1<31:> != resTemp<31:>}},
- {{(~((Rs1<63:1> + (~(val2 + carryin))<63:1>) + (Rs1<0:> + (~(val2+carryin))<0:> + 1)<63:1>))<63:>}},
+ {{((~Rs1 & val2) | (resTemp & (~Rs1 | val2)))<63:>}},
{{Rs1<63:> != val2<63:> && Rs1<63:> != resTemp<63:>}}
);
0x1D: udivxcc({{
@@ -664,7 +663,7 @@ decode OP default Unknown::unknown()
Fsr &= ~(7 << 14);
Fsr &= ~(0x1F);
}});
- 0x03: Trap::fmovq({{fault = new FpDisabled;}});
+ 0x03: Trap::fmovq({{fault = new FpExceptionOther;}});
0x05: fnegs({{
Frds.uw = Frs2s.uw ^ (1UL << 31);
//fsr.ftt = fsr.cexc = 0
@@ -860,11 +859,11 @@ decode OP default Unknown::unknown()
0x72: Trap::fxnor({{fault = new IllegalInstruction;}});
0x73: Trap::fxnors({{fault = new IllegalInstruction;}});
0x74: BasicOperate::fsrc1({{Frd.udw = Frs1.udw;}});
- 0x75: BasicOperate::fsrc1s({{Frd.uw = Frs1.uw;}});
+ 0x75: BasicOperate::fsrc1s({{Frds.uw = Frs1s.uw;}});
0x76: Trap::fornot2({{fault = new IllegalInstruction;}});
0x77: Trap::fornot2s({{fault = new IllegalInstruction;}});
0x78: BasicOperate::fsrc2({{Frd.udw = Frs2.udw;}});
- 0x79: BasicOperate::fsrc2s({{Frd.uw = Frs2.uw;}});
+ 0x79: BasicOperate::fsrc2s({{Frds.uw = Frs2s.uw;}});
0x7A: Trap::fornot1({{fault = new IllegalInstruction;}});
0x7B: Trap::fornot1s({{fault = new IllegalInstruction;}});
0x7C: Trap::for({{fault = new IllegalInstruction;}});
@@ -1130,14 +1129,14 @@ decode OP default Unknown::unknown()
{{ Mem.uw = Rd.uw;
Rd.uw = uReg0;}}, {{EXT_ASI}});
format Trap {
- 0x20: Load::ldf({{Frd.uw = Mem.uw;}});
+ 0x20: Load::ldf({{Frds.uw = Mem.uw;}});
0x21: decode X {
0x0: Load::ldfsr({{Fsr = Mem.uw | Fsr<63:32>;}});
0x1: Load::ldxfsr({{Fsr = Mem.udw;}});
}
0x22: ldqf({{fault = new FpDisabled;}});
0x23: Load::lddf({{Frd.udw = Mem.udw;}});
- 0x24: Store::stf({{Mem.uw = Frd.uw;}});
+ 0x24: Store::stf({{Mem.uw = Frds.uw;}});
0x25: decode X {
0x0: Store::stfsr({{Mem.uw = Fsr<31:0>;}});
0x1: Store::stxfsr({{Mem.udw = Fsr;}});
@@ -1145,7 +1144,7 @@ decode OP default Unknown::unknown()
0x26: stqf({{fault = new FpDisabled;}});
0x27: Store::stdf({{Mem.udw = Frd.udw;}});
0x2D: Nop::prefetch({{ }});
- 0x30: LoadAlt::ldfa({{Frd.uw = Mem.uw;}}, {{EXT_ASI}});
+ 0x30: LoadAlt::ldfa({{Frds.uw = Mem.uw;}}, {{EXT_ASI}});
0x32: ldqfa({{fault = new FpDisabled;}});
format LoadAlt {
0x33: decode EXT_ASI {
@@ -1228,7 +1227,7 @@ decode OP default Unknown::unknown()
{{fault = new DataAccessException;}});
}
}
- 0x34: Store::stfa({{Mem.uw = Frd.uw;}});
+ 0x34: Store::stfa({{Mem.uw = Frds.uw;}});
0x36: stqfa({{fault = new FpDisabled;}});
format StoreAlt {
0x37: decode EXT_ASI {
diff --git a/src/arch/sparc/isa/formats/basic.isa b/src/arch/sparc/isa/formats/basic.isa
index 9805c7c0b..56b201bd6 100644
--- a/src/arch/sparc/isa/formats/basic.isa
+++ b/src/arch/sparc/isa/formats/basic.isa
@@ -72,6 +72,7 @@ def template BasicExecute {{
{
Fault fault = NoFault;
+ %(fp_enable_check)s;
%(op_decl)s;
%(op_rd)s;
%(code)s;
diff --git a/src/arch/sparc/isa/formats/mem/util.isa b/src/arch/sparc/isa/formats/mem/util.isa
index b6e0945b7..3b02f58de 100644
--- a/src/arch/sparc/isa/formats/mem/util.isa
+++ b/src/arch/sparc/isa/formats/mem/util.isa
@@ -1,4 +1,4 @@
-// Copyright (c) 2006 The Regents of The University of Michigan
+// Copyright (c) 2006-2007 The Regents of The University of Michigan
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
@@ -141,6 +141,7 @@ def template LoadExecute {{
{
Fault fault = NoFault;
Addr EA;
+ %(fp_enable_check)s;
%(op_decl)s;
%(op_rd)s;
%(ea_code)s;
@@ -169,6 +170,7 @@ def template LoadExecute {{
Fault fault = NoFault;
Addr EA;
uint%(mem_acc_size)s_t Mem;
+ %(fp_enable_check)s;
%(ea_decl)s;
%(ea_rd)s;
%(ea_code)s;
@@ -206,6 +208,7 @@ def template StoreExecute {{
//It should be optomized out in all the others
bool storeCond = true;
Addr EA;
+ %(fp_enable_check)s;
%(op_decl)s;
%(op_rd)s;
%(ea_code)s;
@@ -235,6 +238,7 @@ def template StoreExecute {{
Fault fault = NoFault;
bool storeCond = true;
Addr EA;
+ %(fp_enable_check)s;
%(op_decl)s;
%(op_rd)s;
%(ea_code)s;
diff --git a/src/cpu/exetrace.cc b/src/cpu/exetrace.cc
index 26e8b6b44..9ea90681c 100644
--- a/src/cpu/exetrace.cc
+++ b/src/cpu/exetrace.cc
@@ -293,7 +293,8 @@ Trace::InstRecord::dump(ostream &outs)
bool diffPC = false;
bool diffCC = false;
bool diffInst = false;
- bool diffRegs = false;
+ bool diffIntRegs = false;
+ bool diffFpRegs = false;
bool diffTpc = false;
bool diffTnpc = false;
bool diffTstate = false;
@@ -357,10 +358,15 @@ Trace::InstRecord::dump(ostream &outs)
}
for (int i = 0; i < TheISA::NumIntArchRegs; i++) {
if (thread->readIntReg(i) != shared_data->intregs[i]) {
- diffRegs = true;
+ diffIntRegs = true;
}
}
- uint64_t oldTl = thread->readMiscReg(MISCREG_TL);
+ for (int i = 0; i < TheISA::NumFloatRegs/2; i++) {
+ if (thread->readFloatRegBits(i,FloatRegFile::DoubleWidth) != shared_data->fpregs[i]) {
+ diffFpRegs = true;
+ }
+ }
+ uint64_t oldTl = thread->readMiscReg(MISCREG_TL);
if (oldTl != shared_data->tl)
diffTl = true;
for (int i = 1; i <= MaxTL; i++) {
@@ -426,12 +432,12 @@ Trace::InstRecord::dump(ostream &outs)
diffTlb = true;
}
- if ((diffPC || diffCC || diffInst || diffRegs || diffTpc ||
- diffTnpc || diffTstate || diffTt || diffHpstate ||
- diffHtstate || diffHtba || diffPstate || diffY ||
- diffCcr || diffTl || diffGl || diffAsi || diffPil ||
- diffCwp || diffCansave || diffCanrestore ||
- diffOtherwin || diffCleanwin || diffTlb)
+ if ((diffPC || diffCC || diffInst || diffIntRegs ||
+ diffFpRegs || diffTpc || diffTnpc || diffTstate ||
+ diffTt || diffHpstate || diffHtstate || diffHtba ||
+ diffPstate || diffY || diffCcr || diffTl || diffGl ||
+ diffAsi || diffPil || diffCwp || diffCansave ||
+ diffCanrestore || diffOtherwin || diffCleanwin || diffTlb)
&& !((staticInst->machInst & 0xC1F80000) == 0x81D00000)
&& !(((staticInst->machInst & 0xC0000000) == 0xC0000000)
&& shared_data->tl == thread->readMiscReg(MISCREG_TL) + 1)
@@ -444,8 +450,10 @@ Trace::InstRecord::dump(ostream &outs)
outs << " [CC]";
if (diffInst)
outs << " [Instruction]";
- if (diffRegs)
+ if (diffIntRegs)
outs << " [IntRegs]";
+ if (diffFpRegs)
+ outs << " [FpRegs]";
if (diffTpc)
outs << " [Tpc]";
if (diffTnpc)
@@ -588,26 +596,22 @@ Trace::InstRecord::dump(ostream &outs)
printSectionHeader(outs, "General Purpose Registers");
static const char * regtypes[4] = {"%g", "%o", "%l", "%i"};
- for(int y = 0; y < 4; y++)
- {
- for(int x = 0; x < 8; x++)
- {
+ for(int y = 0; y < 4; y++) {
+ for(int x = 0; x < 8; x++) {
char label[8];
sprintf(label, "%s%d", regtypes[y], x);
printRegPair(outs, label,
thread->readIntReg(y*8+x),
shared_data->intregs[y*8+x]);
- /*outs << regtypes[y] << x << " " ;
- outs << "0x" << hex << setw(16)
- << thread->readIntReg(y*8+x);
- if (thread->readIntReg(y*8 + x)
- != shared_data->intregs[y*8+x])
- outs << " X ";
- else
- outs << " | ";
- outs << "0x" << setw(16) << hex
- << shared_data->intregs[y*8+x]
- << endl;*/
+ }
+ }
+ if (diffFpRegs) {
+ for (int x = 0; x < 32; x++) {
+ char label[8];
+ sprintf(label, "%%f%d", x);
+ printRegPair(outs, label,
+ thread->readFloatRegBits(x,FloatRegFile::DoubleWidth),
+ shared_data->fpregs[x]);
}
}
if (diffTlb) {
diff --git a/src/cpu/m5legion_interface.h b/src/cpu/m5legion_interface.h
index c3ba5986e..81714f769 100644
--- a/src/cpu/m5legion_interface.h
+++ b/src/cpu/m5legion_interface.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2006 The Regents of The University of Michigan
+ * Copyright (c) 2006-2007 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -30,7 +30,7 @@
#include <unistd.h>
-#define VERSION 0xA1000007
+#define VERSION 0xA1000008
#define OWN_M5 0x000000AA
#define OWN_LEGION 0x00000055
@@ -47,6 +47,7 @@ typedef struct {
uint32_t instruction;
uint32_t new_instruction;
uint64_t intregs[32];
+ uint64_t fpregs[32];
uint64_t tpc[8];
uint64_t tnpc[8];
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 14:58:03 +0000