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-rw-r--r--src/arch/x86/isa/microops/ldstop.isa51
-rw-r--r--src/arch/x86/memhelpers.hh146
2 files changed, 103 insertions, 94 deletions
diff --git a/src/arch/x86/isa/microops/ldstop.isa b/src/arch/x86/isa/microops/ldstop.isa
index 5ff4f0cea..a3d9c5a70 100644
--- a/src/arch/x86/isa/microops/ldstop.isa
+++ b/src/arch/x86/isa/microops/ldstop.isa
@@ -99,8 +99,7 @@ def template MicroLoadExecute {{
%(ea_code)s;
DPRINTF(X86, "%s : %s: The address is %#x\n", instMnem, mnemonic, EA);
- fault = readMemAtomic(xc, traceData, EA, Mem,
- %(memDataSize)s, memFlags);
+ fault = readMemAtomic(xc, traceData, EA, Mem, dataSize, memFlags);
if (fault == NoFault) {
%(code)s;
@@ -145,7 +144,7 @@ def template MicroLoadCompleteAcc {{
%(op_decl)s;
%(op_rd)s;
- getMem(pkt, Mem, %(memDataSize)s, traceData);
+ getMem(pkt, Mem, dataSize, traceData);
%(code)s;
@@ -174,12 +173,10 @@ def template MicroStoreExecute {{
%(code)s;
- if(fault == NoFault)
- {
- fault = writeMemAtomic(xc, traceData, Mem, %(memDataSize)s, EA,
- memFlags, NULL);
- if(fault == NoFault)
- {
+ if (fault == NoFault) {
+ fault = writeMemAtomic(xc, traceData, Mem, dataSize, EA,
+ memFlags, NULL);
+ if (fault == NoFault) {
%(op_wb)s;
}
}
@@ -202,10 +199,9 @@ def template MicroStoreInitiateAcc {{
%(code)s;
- if(fault == NoFault)
- {
- fault = writeMemTiming(xc, traceData, Mem, %(memDataSize)s, EA,
- memFlags, NULL);
+ if (fault == NoFault) {
+ fault = writeMemTiming(xc, traceData, Mem, dataSize, EA,
+ memFlags, NULL);
}
return fault;
}
@@ -561,18 +557,9 @@ let {{
microopClasses[name] = LoadOp
code = '''
- switch (dataSize) {
- case 4:
- DataLow = bits(Mem_u2qw[0], 31, 0);
- DataHi = bits(Mem_u2qw[0], 63, 32);
- break;
- case 8:
- DataLow = Mem_u2qw[0];
- DataHi = Mem_u2qw[1];
- break;
- default:
- panic("Unhandled data size %d in LdSplit.\\n", dataSize);
- }'''
+ DataLow = Mem_u2qw[0];
+ DataHi = Mem_u2qw[1];
+ '''
defineMicroLoadSplitOp('LdSplit', code,
'(StoreCheck << FlagShift)')
@@ -683,17 +670,9 @@ let {{
microopClasses[name] = StoreOp
code = '''
- switch (dataSize) {
- case 4:
- Mem_u2qw[0] = (DataHi << 32) | DataLow;
- break;
- case 8:
- Mem_u2qw[0] = DataLow;
- Mem_u2qw[1] = DataHi;
- break;
- default:
- panic("Unhandled data size %d in StSplit.\\n", dataSize);
- }'''
+ Mem_u2qw[0] = DataLow;
+ Mem_u2qw[1] = DataHi;
+ '''
defineMicroStoreSplitOp('StSplit', code);
diff --git a/src/arch/x86/memhelpers.hh b/src/arch/x86/memhelpers.hh
index 00a6e9a33..aa3617b43 100644
--- a/src/arch/x86/memhelpers.hh
+++ b/src/arch/x86/memhelpers.hh
@@ -74,24 +74,30 @@ getMem(PacketPtr pkt, uint64_t &mem, unsigned dataSize,
traceData->setData(mem);
}
+template <typename T, size_t N>
+static void
+getPackedMem(PacketPtr pkt, std::array<uint64_t, N> &mem, unsigned dataSize)
+{
+ std::array<T, N> real_mem = pkt->get<std::array<T, N> >();
+ for (int i = 0; i < N; i++)
+ mem[i] = real_mem[i];
+}
template <size_t N>
-void
+static void
getMem(PacketPtr pkt, std::array<uint64_t, N> &mem, unsigned dataSize,
Trace::InstRecord *traceData)
{
- assert(dataSize >= 8);
- assert((dataSize % 8) == 0);
-
- int num_words = dataSize / 8;
- assert(num_words <= N);
-
- auto pkt_data = pkt->getConstPtr<const uint64_t>();
- for (int i = 0; i < num_words; ++i)
- mem[i] = gtoh(pkt_data[i]);
-
- // traceData record only has space for 64 bits, so we just record
- // the first qword
+ switch (dataSize) {
+ case 4:
+ getPackedMem<uint32_t, N>(pkt, mem, dataSize);
+ break;
+ case 8:
+ getPackedMem<uint64_t, N>(pkt, mem, dataSize);
+ break;
+ default:
+ panic("Unhandled element size in getMem.\n");
+ }
if (traceData)
traceData->setData(mem[0]);
}
@@ -114,62 +120,86 @@ readMemAtomic(ExecContext *xc, Trace::InstRecord *traceData, Addr addr,
return fault;
}
+template <typename T, size_t N>
+static Fault
+readPackedMemAtomic(ExecContext *xc, Addr addr, std::array<uint64_t, N> &mem,
+ unsigned flags)
+{
+ std::array<T, N> real_mem;
+ Fault fault = xc->readMem(addr, (uint8_t *)&real_mem,
+ sizeof(T) * N, flags);
+ if (fault == NoFault) {
+ real_mem = gtoh(real_mem);
+ for (int i = 0; i < N; i++)
+ mem[i] = real_mem[i];
+ }
+ return fault;
+}
+
template <size_t N>
-Fault
+static Fault
readMemAtomic(ExecContext *xc, Trace::InstRecord *traceData, Addr addr,
std::array<uint64_t, N> &mem, unsigned dataSize,
unsigned flags)
{
- assert(dataSize >= 8);
- assert((dataSize % 8) == 0);
-
- Fault fault = xc->readMem(addr, (uint8_t *)&mem, dataSize, flags);
-
- if (fault == NoFault) {
- int num_words = dataSize / 8;
- assert(num_words <= N);
-
- for (int i = 0; i < num_words; ++i)
- mem[i] = gtoh(mem[i]);
+ Fault fault = NoFault;
- if (traceData)
- traceData->setData(mem[0]);
+ switch (dataSize) {
+ case 4:
+ fault = readPackedMemAtomic<uint32_t, N>(xc, addr, mem, flags);
+ break;
+ case 8:
+ fault = readPackedMemAtomic<uint64_t, N>(xc, addr, mem, flags);
+ break;
+ default:
+ panic("Unhandled element size in readMemAtomic\n");
}
+ if (fault == NoFault && traceData)
+ traceData->setData(mem[0]);
return fault;
}
+template <typename T, size_t N>
+static Fault
+writePackedMem(ExecContext *xc, std::array<uint64_t, N> &mem, Addr addr,
+ unsigned flags, uint64_t *res)
+{
+ std::array<T, N> real_mem;
+ for (int i = 0; i < N; i++)
+ real_mem[i] = mem[i];
+ real_mem = htog(real_mem);
+ return xc->writeMem((uint8_t *)&real_mem, sizeof(T) * N,
+ addr, flags, res);
+}
+
static Fault
writeMemTiming(ExecContext *xc, Trace::InstRecord *traceData, uint64_t mem,
unsigned dataSize, Addr addr, Request::Flags flags,
uint64_t *res)
{
- if (traceData) {
+ if (traceData)
traceData->setData(mem);
- }
mem = TheISA::htog(mem);
return xc->writeMem((uint8_t *)&mem, dataSize, addr, flags, res);
}
template <size_t N>
-Fault
+static Fault
writeMemTiming(ExecContext *xc, Trace::InstRecord *traceData,
std::array<uint64_t, N> &mem, unsigned dataSize,
Addr addr, unsigned flags, uint64_t *res)
{
- assert(dataSize >= 8);
- assert((dataSize % 8) == 0);
-
- if (traceData) {
+ if (traceData)
traceData->setData(mem[0]);
- }
-
- int num_words = dataSize / 8;
- assert(num_words <= N);
- for (int i = 0; i < num_words; ++i)
- mem[i] = htog(mem[i]);
-
- return xc->writeMem((uint8_t *)&mem, dataSize, addr, flags, res);
+ switch (dataSize) {
+ case 4:
+ return writePackedMem<uint32_t, N>(xc, mem, addr, flags, res);
+ case 8:
+ return writePackedMem<uint64_t, N>(xc, mem, addr, flags, res);
+ default:
+ panic("Unhandled element size in writeMemTiming.\n");
+ }
}
static Fault
@@ -177,39 +207,39 @@ writeMemAtomic(ExecContext *xc, Trace::InstRecord *traceData, uint64_t mem,
unsigned dataSize, Addr addr, Request::Flags flags,
uint64_t *res)
{
- if (traceData) {
+ if (traceData)
traceData->setData(mem);
- }
uint64_t host_mem = TheISA::htog(mem);
Fault fault =
xc->writeMem((uint8_t *)&host_mem, dataSize, addr, flags, res);
- if (fault == NoFault && res != NULL) {
+ if (fault == NoFault && res)
*res = gtoh(*res);
- }
return fault;
}
template <size_t N>
-Fault
+static Fault
writeMemAtomic(ExecContext *xc, Trace::InstRecord *traceData,
std::array<uint64_t, N> &mem, unsigned dataSize,
Addr addr, unsigned flags, uint64_t *res)
{
- if (traceData) {
+ if (traceData)
traceData->setData(mem[0]);
- }
-
- int num_words = dataSize / 8;
- assert(num_words <= N);
-
- for (int i = 0; i < num_words; ++i)
- mem[i] = htog(mem[i]);
- Fault fault = xc->writeMem((uint8_t *)&mem, dataSize, addr, flags, res);
+ Fault fault;
+ switch (dataSize) {
+ case 4:
+ fault = writePackedMem<uint32_t, N>(xc, mem, addr, flags, res);
+ break;
+ case 8:
+ fault = writePackedMem<uint64_t, N>(xc, mem, addr, flags, res);
+ break;
+ default:
+ panic("Unhandled element size in writeMemAtomic.\n");
+ }
- if (fault == NoFault && res != NULL) {
+ if (fault == NoFault && res)
*res = gtoh(*res);
- }
return fault;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 18:05:35 +0000