write_queue.cc

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#include "mem/cache/write_queue.hh"
 
#include <cassert>
 
#include "mem/cache/write_queue_entry.hh"
 
namespace gem5
{
 
WriteQueue::WriteQueue(const std::string &_label,
                       int num_entries, int reserve, const std::string &name)
    : Queue<WriteQueueEntry>(_label, num_entries, reserve,
            name + ".write_queue")
{}
 
WriteQueueEntry *
WriteQueue::allocate(Addr blk_addr, unsigned blk_size, PacketPtr pkt,
                    Tick when_ready, Counter order)
{
    assert(!freeList.empty());
    WriteQueueEntry *entry = freeList.front();
    assert(entry->getNumTargets() == 0);
    freeList.pop_front();
 
    entry->allocate(blk_addr, blk_size, pkt, when_ready, order);
    entry->allocIter = allocatedList.insert(allocatedList.end(), entry);
    entry->readyIter = addToReadyList(entry);
 
    allocated += 1;
    return entry;
}
 
void
WriteQueue::markInService(WriteQueueEntry *entry)
{
    // for a normal eviction, such as a writeback or a clean evict,
    // there is no more to do as we are done from the perspective of
    // this cache, and for uncacheable write we do not need the entry
    // as part of the response handling
    entry->popTarget();
    deallocate(entry);
}
 
} // namespace gem5