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-rw-r--r--src/arch/sparc/isa/decoder.isa24
-rw-r--r--src/arch/sparc/isa/formats/basic.isa4
-rw-r--r--src/cpu/exetrace.cc10
-rw-r--r--src/dev/sparc/mm_disk.cc103
-rw-r--r--src/dev/sparc/mm_disk.hh7
5 files changed, 119 insertions, 29 deletions
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index e56e9d81d..fb606c7cc 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -807,14 +807,12 @@ decode OP default Unknown::unknown()
float t = Frds.sw;
if (t != Frs2s.sf)
Fsr = insertBits(Fsr, 4,0, 0x01);
- Fsr |= Fsr<4:0> << 5;
}});
0xD2: fdtoi({{
Frds.sw = static_cast<int32_t>(Frs2.df);
double t = Frds.sw;
if (t != Frs2.df)
Fsr = insertBits(Fsr, 4,0, 0x01);
- Fsr |= Fsr<4:0> << 5;
}});
0xD3: FpUnimpl::fqtoi();
default: FailUnimpl::fpop1();
@@ -1245,18 +1243,30 @@ decode OP default Unknown::unknown()
format Trap {
0x20: Load::ldf({{Frds.uw = Mem.uw;}});
0x21: decode RD {
- 0x0: Load::ldfsr({{Fsr = Mem.uw | Fsr<63:32>;}});
- 0x1: Load::ldxfsr({{Fsr = Mem.udw;}});
+ 0x0: Load::ldfsr({{fault = checkFpEnableFault(xc);
+ if (fault)
+ return fault;
+ Fsr = Mem.uw | Fsr<63:32>;}});
+ 0x1: Load::ldxfsr({{fault = checkFpEnableFault(xc);
+ if (fault)
+ return fault;
+ Fsr = Mem.udw;}});
default: FailUnimpl::ldfsrOther();
}
0x22: ldqf({{fault = new FpDisabled;}});
0x23: Load::lddf({{Frd.udw = Mem.udw;}});
0x24: Store::stf({{Mem.uw = Frds.uw;}});
0x25: decode RD {
- 0x0: Store::stfsr({{Mem.uw = Fsr<31:0>;
- Fsr = insertBits(Fsr,16,14,0);}});
- 0x1: Store::stxfsr({{Mem.udw = Fsr;
+ 0x0: Store::stfsr({{fault = checkFpEnableFault(xc);
+ if (fault)
+ return fault;
+ Mem.uw = Fsr<31:0>;
Fsr = insertBits(Fsr,16,14,0);}});
+ 0x1: Store::stxfsr({{fault = checkFpEnableFault(xc);
+ if (fault)
+ return fault;
+ Mem.udw = Fsr;
+ Fsr = insertBits(Fsr,16,14,0);}});
default: FailUnimpl::stfsrOther();
}
0x26: stqf({{fault = new FpDisabled;}});
diff --git a/src/arch/sparc/isa/formats/basic.isa b/src/arch/sparc/isa/formats/basic.isa
index fac523aeb..017f43780 100644
--- a/src/arch/sparc/isa/formats/basic.isa
+++ b/src/arch/sparc/isa/formats/basic.isa
@@ -106,6 +106,7 @@ def format BasicOperate(code, *flags) {{
def format FpBasic(code, *flags) {{
fp_code = """
+ Fsr |= bits(Fsr,4,0) << 5;
Fsr = insertBits(Fsr,4,0,0);
#if defined(__sun) || defined (__OpenBSD__)
fp_rnd newrnd = FP_RN;
@@ -128,7 +129,10 @@ def format FpBasic(code, *flags) {{
fesetround(newrnd);
#endif
"""
+
fp_code += code
+
+
fp_code += """
#if defined(__sun) || defined (__OpenBSD__)
fpsetround(oldrnd);
diff --git a/src/cpu/exetrace.cc b/src/cpu/exetrace.cc
index 672b06eaf..5108d7338 100644
--- a/src/cpu/exetrace.cc
+++ b/src/cpu/exetrace.cc
@@ -411,8 +411,14 @@ Trace::InstRecord::dump(ostream &outs)
if(shared_data->y !=
thread->readIntReg(NumIntArchRegs + 1))
diffY = true;
- if(shared_data->fsr != thread->readMiscReg(MISCREG_FSR))
+ if(shared_data->fsr != thread->readMiscReg(MISCREG_FSR)) {
diffFsr = true;
+ if (mbits(shared_data->fsr, 63,10) ==
+ mbits(thread->readMiscReg(MISCREG_FSR), 63,10)) {
+ thread->setMiscReg(MISCREG_FSR, shared_data->fsr);
+ diffFsr = false;
+ }
+ }
//if(shared_data->ccr != thread->readMiscReg(MISCREG_CCR))
if(shared_data->ccr !=
thread->readIntReg(NumIntArchRegs + 2))
@@ -664,7 +670,7 @@ Trace::InstRecord::dump(ostream &outs)
}
diffcount++;
- if (diffcount > 2)
+ if (diffcount > 3)
fatal("Differences found between Legion and M5\n");
} else
diffcount = 0;
diff --git a/src/dev/sparc/mm_disk.cc b/src/dev/sparc/mm_disk.cc
index 018415f6c..b8cabd0cf 100644
--- a/src/dev/sparc/mm_disk.cc
+++ b/src/dev/sparc/mm_disk.cc
@@ -47,7 +47,7 @@
MmDisk::MmDisk(Params *p)
: BasicPioDevice(p), image(p->image), curSector((uint64_t)-1), dirty(false)
{
- std::memset(&bytes, 0, SectorSize);
+ std::memset(&diskData, 0, SectorSize);
pioSize = image->size() * SectorSize;
}
@@ -57,9 +57,9 @@ MmDisk::read(PacketPtr pkt)
Addr accessAddr;
off_t sector;
off_t bytes_read;
- uint16_t *d16;
- uint32_t *d32;
- uint64_t *d64;
+ uint16_t d16;
+ uint32_t d32;
+ uint64_t d64;
assert(pkt->result == Packet::Unknown);
assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
@@ -68,26 +68,34 @@ MmDisk::read(PacketPtr pkt)
sector = accessAddr / SectorSize;
if (sector != curSector) {
- if (dirty)
- bytes_read = image->write(bytes, curSector);
- bytes_read = image->read(bytes, sector);
+ if (dirty) {
+ bytes_read = image->write(diskData, curSector);
+ assert(bytes_read == SectorSize);
+ }
+ bytes_read = image->read(diskData, sector);
+ assert(bytes_read == SectorSize);
curSector = sector;
}
switch (pkt->getSize()) {
case sizeof(uint8_t):
- pkt->set(bytes[accessAddr % SectorSize]);
+ pkt->set(diskData[accessAddr % SectorSize]);
+ DPRINTF(IdeDisk, "reading byte %#x value= %#x\n", accessAddr, diskData[accessAddr %
+ SectorSize]);
break;
case sizeof(uint16_t):
- d16 = (uint16_t*)bytes + (accessAddr % SectorSize)/2;
- pkt->set(htobe(*d16));
+ memcpy(&d16, diskData + (accessAddr % SectorSize), 2);
+ pkt->set(htobe(d32));
+ DPRINTF(IdeDisk, "reading word %#x value= %#x\n", accessAddr, d16);
break;
case sizeof(uint32_t):
- d32 = (uint32_t*)bytes + (accessAddr % SectorSize)/4;
- pkt->set(htobe(*d32));
+ memcpy(&d32, diskData + (accessAddr % SectorSize), 4);
+ pkt->set(htobe(d32));
+ DPRINTF(IdeDisk, "reading dword %#x value= %#x\n", accessAddr, d32);
break;
case sizeof(uint64_t):
- d64 = (uint64_t*)bytes + (accessAddr % SectorSize)/8;
- pkt->set(htobe(*d64));
+ memcpy(&d64, diskData + (accessAddr % SectorSize), 8);
+ pkt->set(htobe(d64));
+ DPRINTF(IdeDisk, "reading qword %#x value= %#x\n", accessAddr, d64);
break;
default:
panic("Invalid access size\n");
@@ -100,11 +108,74 @@ MmDisk::read(PacketPtr pkt)
Tick
MmDisk::write(PacketPtr pkt)
{
- panic("need to implement\n");
- M5_DUMMY_RETURN
+ Addr accessAddr;
+ off_t sector;
+ off_t bytes_read;
+ uint16_t d16;
+ uint32_t d32;
+ uint64_t d64;
+
+ assert(pkt->result == Packet::Unknown);
+ assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+ accessAddr = pkt->getAddr() - pioAddr;
+
+ sector = accessAddr / SectorSize;
+
+ if (sector != curSector) {
+ if (dirty) {
+ bytes_read = image->write(diskData, curSector);
+ assert(bytes_read == SectorSize);
+ }
+ bytes_read = image->read(diskData, sector);
+ assert(bytes_read == SectorSize);
+ curSector = sector;
+ }
+ dirty = true;
+
+ switch (pkt->getSize()) {
+ case sizeof(uint8_t):
+ diskData[accessAddr % SectorSize] = htobe(pkt->get<uint8_t>());
+ DPRINTF(IdeDisk, "writing byte %#x value= %#x\n", accessAddr, diskData[accessAddr %
+ SectorSize]);
+ break;
+ case sizeof(uint16_t):
+ d16 = htobe(pkt->get<uint16_t>());
+ memcpy(diskData + (accessAddr % SectorSize), &d16, 2);
+ DPRINTF(IdeDisk, "writing word %#x value= %#x\n", accessAddr, d16);
+ break;
+ case sizeof(uint32_t):
+ d32 = htobe(pkt->get<uint32_t>());
+ memcpy(diskData + (accessAddr % SectorSize), &d32, 4);
+ DPRINTF(IdeDisk, "writing dword %#x value= %#x\n", accessAddr, d32);
+ break;
+ case sizeof(uint64_t):
+ d64 = htobe(pkt->get<uint64_t>());
+ memcpy(diskData + (accessAddr % SectorSize), &d64, 8);
+ DPRINTF(IdeDisk, "writing qword %#x value= %#x\n", accessAddr, d64);
+ break;
+ default:
+ panic("Invalid access size\n");
+ }
+
+ pkt->result = Packet::Success;
+ return pioDelay;
+}
+
+void
+MmDisk::serialize(std::ostream &os)
+{
+ // just write any dirty changes to the cow layer it will take care of
+ // serialization
+ int bytes_read;
+ if (dirty) {
+ bytes_read = image->write(diskData, curSector);
+ assert(bytes_read == SectorSize);
+ }
}
+
+
BEGIN_DECLARE_SIM_OBJECT_PARAMS(MmDisk)
Param<Addr> pio_addr;
Param<Tick> pio_latency;
diff --git a/src/dev/sparc/mm_disk.hh b/src/dev/sparc/mm_disk.hh
index 0a4626067..30028d2b6 100644
--- a/src/dev/sparc/mm_disk.hh
+++ b/src/dev/sparc/mm_disk.hh
@@ -46,10 +46,7 @@ class MmDisk : public BasicPioDevice
DiskImage *image;
off_t curSector;
bool dirty;
- union {
- uint8_t bytes[SectorSize];
- uint32_t words[SectorSize/4];
- };
+ uint8_t diskData[SectorSize];
public:
struct Params : public BasicPioDevice::Params
@@ -64,6 +61,8 @@ class MmDisk : public BasicPioDevice
virtual Tick read(PacketPtr pkt);
virtual Tick write(PacketPtr pkt);
+
+ virtual void serialize(std::ostream &os);
};
#endif //__DEV_SPARC_MM_DISK_HH__
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 12:56:33 +0000