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Diffstat (limited to 'src/arch/alpha/tlb.cc')
-rw-r--r--src/arch/alpha/tlb.cc105
1 files changed, 52 insertions, 53 deletions
diff --git a/src/arch/alpha/tlb.cc b/src/arch/alpha/tlb.cc
index f701c423d..628d7ad6b 100644
--- a/src/arch/alpha/tlb.cc
+++ b/src/arch/alpha/tlb.cc
@@ -62,8 +62,8 @@ bool uncacheBit40 = false;
TLB::TLB(const string &name, int s)
: SimObject(name), size(s), nlu(0)
{
- table = new PTE[size];
- memset(table, 0, sizeof(PTE[size]));
+ table = new TlbEntry[size];
+ memset(table, 0, sizeof(TlbEntry[size]));
flushCache();
}
@@ -74,23 +74,23 @@ TLB::~TLB()
}
// look up an entry in the TLB
-PTE *
+TlbEntry *
TLB::lookup(Addr vpn, uint8_t asn)
{
// assume not found...
- PTE *retval = NULL;
-
- if (PTECache[0]) {
- if (vpn == PTECache[0]->tag &&
- (PTECache[0]->asma || PTECache[0]->asn == asn))
- retval = PTECache[0];
- else if (PTECache[1]) {
- if (vpn == PTECache[1]->tag &&
- (PTECache[1]->asma || PTECache[1]->asn == asn))
- retval = PTECache[1];
- else if (PTECache[2] && vpn == PTECache[2]->tag &&
- (PTECache[2]->asma || PTECache[2]->asn == asn))
- retval = PTECache[2];
+ TlbEntry *retval = NULL;
+
+ if (EntryCache[0]) {
+ if (vpn == EntryCache[0]->tag &&
+ (EntryCache[0]->asma || EntryCache[0]->asn == asn))
+ retval = EntryCache[0];
+ else if (EntryCache[1]) {
+ if (vpn == EntryCache[1]->tag &&
+ (EntryCache[1]->asma || EntryCache[1]->asn == asn))
+ retval = EntryCache[1];
+ else if (EntryCache[2] && vpn == EntryCache[2]->tag &&
+ (EntryCache[2]->asma || EntryCache[2]->asn == asn))
+ retval = EntryCache[2];
}
}
@@ -99,10 +99,10 @@ TLB::lookup(Addr vpn, uint8_t asn)
if (i != lookupTable.end()) {
while (i->first == vpn) {
int index = i->second;
- PTE *pte = &table[index];
- assert(pte->valid);
- if (vpn == pte->tag && (pte->asma || pte->asn == asn)) {
- retval = updateCache(pte);
+ TlbEntry *entry = &table[index];
+ assert(entry->valid);
+ if (vpn == entry->tag && (entry->asma || entry->asn == asn)) {
+ retval = updateCache(entry);
break;
}
@@ -157,7 +157,7 @@ TLB::checkCacheability(RequestPtr &req)
// insert a new TLB entry
void
-TLB::insert(Addr addr, PTE &pte)
+TLB::insert(Addr addr, TlbEntry &entry)
{
flushCache();
VAddr vaddr = addr;
@@ -181,9 +181,9 @@ TLB::insert(Addr addr, PTE &pte)
lookupTable.erase(i);
}
- DPRINTF(TLB, "insert @%d: %#x -> %#x\n", nlu, vaddr.vpn(), pte.ppn);
+ DPRINTF(TLB, "insert @%d: %#x -> %#x\n", nlu, vaddr.vpn(), entry.ppn);
- table[nlu] = pte;
+ table[nlu] = entry;
table[nlu].tag = vaddr.vpn();
table[nlu].valid = true;
@@ -195,7 +195,7 @@ void
TLB::flushAll()
{
DPRINTF(TLB, "flushAll\n");
- memset(table, 0, sizeof(PTE[size]));
+ memset(table, 0, sizeof(TlbEntry[size]));
flushCache();
lookupTable.clear();
nlu = 0;
@@ -209,17 +209,17 @@ TLB::flushProcesses()
PageTable::iterator end = lookupTable.end();
while (i != end) {
int index = i->second;
- PTE *pte = &table[index];
- assert(pte->valid);
+ TlbEntry *entry = &table[index];
+ assert(entry->valid);
// we can't increment i after we erase it, so save a copy and
// increment it to get the next entry now
PageTable::iterator cur = i;
++i;
- if (!pte->asma) {
- DPRINTF(TLB, "flush @%d: %#x -> %#x\n", index, pte->tag, pte->ppn);
- pte->valid = false;
+ if (!entry->asma) {
+ DPRINTF(TLB, "flush @%d: %#x -> %#x\n", index, entry->tag, entry->ppn);
+ entry->valid = false;
lookupTable.erase(cur);
}
}
@@ -237,15 +237,15 @@ TLB::flushAddr(Addr addr, uint8_t asn)
while (i != lookupTable.end() && i->first == vaddr.vpn()) {
int index = i->second;
- PTE *pte = &table[index];
- assert(pte->valid);
+ TlbEntry *entry = &table[index];
+ assert(entry->valid);
- if (vaddr.vpn() == pte->tag && (pte->asma || pte->asn == asn)) {
+ if (vaddr.vpn() == entry->tag && (entry->asma || entry->asn == asn)) {
DPRINTF(TLB, "flushaddr @%d: %#x -> %#x\n", index, vaddr.vpn(),
- pte->ppn);
+ entry->ppn);
// invalidate this entry
- pte->valid = false;
+ entry->valid = false;
lookupTable.erase(i++);
} else {
@@ -262,7 +262,7 @@ TLB::serialize(ostream &os)
SERIALIZE_SCALAR(nlu);
for (int i = 0; i < size; i++) {
- nameOut(os, csprintf("%s.PTE%d", name(), i));
+ nameOut(os, csprintf("%s.Entry%d", name(), i));
table[i].serialize(os);
}
}
@@ -274,7 +274,7 @@ TLB::unserialize(Checkpoint *cp, const string &section)
UNSERIALIZE_SCALAR(nlu);
for (int i = 0; i < size; i++) {
- table[i].unserialize(cp, csprintf("%s.PTE%d", section, i));
+ table[i].unserialize(cp, csprintf("%s.Entry%d", section, i));
if (table[i].valid) {
lookupTable.insert(make_pair(table[i].tag, i));
}
@@ -364,20 +364,20 @@ ITB::translate(RequestPtr &req, ThreadContext *tc)
} else {
// not a physical address: need to look up pte
int asn = DTB_ASN_ASN(tc->readMiscRegNoEffect(IPR_DTB_ASN));
- PTE *pte = lookup(VAddr(req->getVaddr()).vpn(),
+ TlbEntry *entry = lookup(VAddr(req->getVaddr()).vpn(),
asn);
- if (!pte) {
+ if (!entry) {
misses++;
return new ItbPageFault(req->getVaddr());
}
- req->setPaddr((pte->ppn << PageShift) +
+ req->setPaddr((entry->ppn << PageShift) +
(VAddr(req->getVaddr()).offset()
& ~3));
// check permissions for this access
- if (!(pte->xre &
+ if (!(entry->xre &
(1 << ICM_CM(tc->readMiscRegNoEffect(IPR_ICM))))) {
// instruction access fault
acv++;
@@ -548,10 +548,9 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
int asn = DTB_ASN_ASN(tc->readMiscRegNoEffect(IPR_DTB_ASN));
// not a physical address: need to look up pte
- PTE *pte = lookup(VAddr(req->getVaddr()).vpn(),
- asn);
+ TlbEntry *entry = lookup(VAddr(req->getVaddr()).vpn(), asn);
- if (!pte) {
+ if (!entry) {
// page fault
if (write) { write_misses++; } else { read_misses++; }
uint64_t flags = (write ? MM_STAT_WR_MASK : 0) |
@@ -563,32 +562,32 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
flags));
}
- req->setPaddr((pte->ppn << PageShift) +
+ req->setPaddr((entry->ppn << PageShift) +
VAddr(req->getVaddr()).offset());
if (write) {
- if (!(pte->xwe & MODE2MASK(mode))) {
+ if (!(entry->xwe & MODE2MASK(mode))) {
// declare the instruction access fault
write_acv++;
uint64_t flags = MM_STAT_WR_MASK |
MM_STAT_ACV_MASK |
- (pte->fonw ? MM_STAT_FONW_MASK : 0);
+ (entry->fonw ? MM_STAT_FONW_MASK : 0);
return new DtbPageFault(req->getVaddr(), req->getFlags(), flags);
}
- if (pte->fonw) {
+ if (entry->fonw) {
write_acv++;
uint64_t flags = MM_STAT_WR_MASK |
MM_STAT_FONW_MASK;
return new DtbPageFault(req->getVaddr(), req->getFlags(), flags);
}
} else {
- if (!(pte->xre & MODE2MASK(mode))) {
+ if (!(entry->xre & MODE2MASK(mode))) {
read_acv++;
uint64_t flags = MM_STAT_ACV_MASK |
- (pte->fonr ? MM_STAT_FONR_MASK : 0);
+ (entry->fonr ? MM_STAT_FONR_MASK : 0);
return new DtbAcvFault(req->getVaddr(), req->getFlags(), flags);
}
- if (pte->fonr) {
+ if (entry->fonr) {
read_acv++;
uint64_t flags = MM_STAT_FONR_MASK;
return new DtbPageFault(req->getVaddr(), req->getFlags(), flags);
@@ -609,15 +608,15 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
return checkCacheability(req);
}
-PTE &
+TlbEntry &
TLB::index(bool advance)
{
- PTE *pte = &table[nlu];
+ TlbEntry *entry = &table[nlu];
if (advance)
nextnlu();
- return *pte;
+ return *entry;
}
/* end namespace AlphaISA */ }
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 00:03:58 +0000