diff options
Diffstat (limited to 'src/mem/cache/mshr.cc')
| -rw-r--r-- | src/mem/cache/mshr.cc | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/mem/cache/mshr.cc b/src/mem/cache/mshr.cc index f71ff6524..b58c256cd 100644 --- a/src/mem/cache/mshr.cc +++ b/src/mem/cache/mshr.cc @@ -66,7 +66,8 @@ MSHR::MSHR() : readyTime(0), _isUncacheable(false), downstreamPending(false), postInvalidate(false), postDowngrade(false), queue(NULL), order(0), blkAddr(0), blkSize(0), isSecure(false), inService(false), - isForward(false), threadNum(InvalidThreadID), data(NULL) + isForward(false), allocOnFill(false), + threadNum(InvalidThreadID), data(NULL) { } @@ -202,7 +203,7 @@ MSHR::TargetList::print(std::ostream &os, int verbosity, void MSHR::allocate(Addr blk_addr, unsigned blk_size, PacketPtr target, - Tick when_ready, Counter _order) + Tick when_ready, Counter _order, bool alloc_on_fill) { blkAddr = blk_addr; blkSize = blk_size; @@ -211,6 +212,7 @@ MSHR::allocate(Addr blk_addr, unsigned blk_size, PacketPtr target, order = _order; assert(target); isForward = false; + allocOnFill = alloc_on_fill; _isUncacheable = target->req->isUncacheable(); inService = false; downstreamPending = false; @@ -274,7 +276,8 @@ MSHR::deallocate() * Adds a target to an MSHR */ void -MSHR::allocateTarget(PacketPtr pkt, Tick whenReady, Counter _order) +MSHR::allocateTarget(PacketPtr pkt, Tick whenReady, Counter _order, + bool alloc_on_fill) { // assume we'd never issue a prefetch when we've got an // outstanding miss @@ -285,6 +288,10 @@ MSHR::allocateTarget(PacketPtr pkt, Tick whenReady, Counter _order) // have targets addded if originally allocated uncacheable assert(!_isUncacheable); + // potentially re-evaluate whether we should allocate on a fill or + // not + allocOnFill = allocOnFill || alloc_on_fill; + // if there's a request already in service for this MSHR, we will // have to defer the new target until after the response if any of // the following are true: @@ -478,6 +485,7 @@ MSHR::print(std::ostream &os, int verbosity, const std::string &prefix) const prefix, blkAddr, blkAddr + blkSize - 1, isSecure ? "s" : "ns", isForward ? "Forward" : "", + allocOnFill ? "AllocOnFill" : "", isForwardNoResponse() ? "ForwNoResp" : "", needsExclusive() ? "Excl" : "", _isUncacheable ? "Unc" : "", |