Skip to content

mem: This fixes the problem of large req address range #9

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
aakahlow wants to merge 1 commit into
base: dcache_orb
Choose a base branch
from
Open

mem: This fixes the problem of large req address range #9

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 7 additions & 6 deletions src/mem/dcache_ctrl.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -207,16 +207,16 @@ DcacheCtrl::printNvmWritebackQueue()
Addr
DcacheCtrl::returnTagDC(Addr request_addr, unsigned size)
{
int index_bits = ceilLog2(dramCacheSize);
int index_bits = ceilLog2(dramCacheSize/blockSize);
int block_bits = ceilLog2(size);
return bits(request_addr, size-1, (index_bits+block_bits));
}

Addr
DcacheCtrl::returnIndexDC(Addr request_addr, unsigned size)
{
return bits(request_addr, ceilLog2(size)+ceilLog2(dramCacheSize)-1,
ceilLog2(size));
return bits(request_addr, ceilLog2(size)+
(ceilLog2(dramCacheSize/blockSize)-1), ceilLog2(size));
}

void
Expand All @@ -239,8 +239,8 @@ DcacheCtrl::checkHitOrMiss(reqBufferEntry* orbEntry)
bool
DcacheCtrl::checkDirty(Addr addr)
{
return (tagMetadataStore.at(addr).validLine &&
tagMetadataStore.at(addr).dirtyLine);
return (tagMetadataStore.at(returnIndexDC(addr, 64)).validLine &&
tagMetadataStore.at(returnIndexDC(addr, 64)).dirtyLine);


// always dirty
Expand All @@ -255,7 +255,8 @@ DcacheCtrl::handleDirtyCacheLine(reqBufferEntry* orbEntry)
{
dccPacket* wbDccPkt = nvm->decodePacket(nullptr,
tagMetadataStore.at
(orbEntry->owPkt->getAddr()).nvmAddr,
(returnIndexDC(orbEntry->owPkt->getAddr(),
orbEntry->owPkt->getSize())).nvmAddr,
orbEntry->owPkt->getSize(),
false, false);

Expand Down