diff options
Diffstat (limited to 'src/mem/cache')
-rw-r--r-- | src/mem/cache/cache.cc | 31 | ||||
-rw-r--r-- | src/mem/cache/cache.hh | 2 |
2 files changed, 20 insertions, 13 deletions
diff --git a/src/mem/cache/cache.cc b/src/mem/cache/cache.cc index 2a3dddc19..bd1318fb9 100644 --- a/src/mem/cache/cache.cc +++ b/src/mem/cache/cache.cc @@ -2542,30 +2542,35 @@ Cache::CpuSidePort::getAddrRanges() const } bool -Cache::CpuSidePort::recvTimingReq(PacketPtr pkt) +Cache::CpuSidePort::tryTiming(PacketPtr pkt) { assert(!cache->system->bypassCaches()); - bool success = false; + // always let express snoop packets through if even if blocked + if (pkt->isExpressSnoop()) { + return true; + } else if (isBlocked() || mustSendRetry) { + // either already committed to send a retry, or blocked + mustSendRetry = true; + return false; + } + mustSendRetry = false; + return true; +} + +bool +Cache::CpuSidePort::recvTimingReq(PacketPtr pkt) +{ + assert(!cache->system->bypassCaches()); // always let express snoop packets through if even if blocked if (pkt->isExpressSnoop()) { - // do not change the current retry state bool M5_VAR_USED bypass_success = cache->recvTimingReq(pkt); assert(bypass_success); return true; - } else if (blocked || mustSendRetry) { - // either already committed to send a retry, or blocked - success = false; - } else { - // pass it on to the cache, and let the cache decide if we - // have to retry or not - success = cache->recvTimingReq(pkt); } - // remember if we have to retry - mustSendRetry = !success; - return success; + return tryTiming(pkt) && cache->recvTimingReq(pkt); } Tick diff --git a/src/mem/cache/cache.hh b/src/mem/cache/cache.hh index a39a9c740..790c685f4 100644 --- a/src/mem/cache/cache.hh +++ b/src/mem/cache/cache.hh @@ -90,6 +90,8 @@ class Cache : public BaseCache virtual bool recvTimingSnoopResp(PacketPtr pkt); + virtual bool tryTiming(PacketPtr pkt); + virtual bool recvTimingReq(PacketPtr pkt); virtual Tick recvAtomic(PacketPtr pkt); |