diff options
Diffstat (limited to 'src/mem/cache/prefetch/base.hh')
-rw-r--r-- | src/mem/cache/prefetch/base.hh | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/src/mem/cache/prefetch/base.hh b/src/mem/cache/prefetch/base.hh index cc54ab1b8..394c85c94 100644 --- a/src/mem/cache/prefetch/base.hh +++ b/src/mem/cache/prefetch/base.hh @@ -56,6 +56,7 @@ #include "mem/packet.hh" #include "mem/request.hh" #include "sim/clocked_object.hh" +#include "sim/probe/probe.hh" class BaseCache; struct BasePrefetcherParams; @@ -63,6 +64,19 @@ class System; class BasePrefetcher : public ClockedObject { + class PrefetchListener : public ProbeListenerArgBase<PacketPtr> + { + public: + PrefetchListener(BasePrefetcher &_parent, ProbeManager *pm, + const std::string &name) + : ProbeListenerArgBase(pm, name), + parent(_parent) {} + void notify(const PacketPtr &pkt) override; + protected: + BasePrefetcher &parent; + }; + + std::vector<PrefetchListener *> listeners; protected: // PARAMETERS @@ -99,6 +113,9 @@ class BasePrefetcher : public ClockedObject const Addr pageBytes; + /** Prefetch on every access, not just misses */ + const bool prefetchOnAccess; + /** Determine if this access should be observed */ bool observeAccess(const PacketPtr &pkt) const; @@ -135,14 +152,31 @@ class BasePrefetcher : public ClockedObject /** * Notify prefetcher of cache access (may be any access or just * misses, depending on cache parameters.) - * @retval Time of next prefetch availability, or MaxTick if none. */ - virtual Tick notify(const PacketPtr &pkt) = 0; + virtual void notify(const PacketPtr &pkt) = 0; virtual PacketPtr getPacket() = 0; virtual Tick nextPrefetchReadyTime() const = 0; virtual void regStats(); + + /** + * Register probe points for this object. + */ + void regProbeListeners() override; + + /** + * Process a notification event from the ProbeListener. + * @param pkt The memory request causing the event + */ + void probeNotify(const PacketPtr &pkt); + + /** + * Add a SimObject and a probe name to listen events from + * @param obj The SimObject pointer to listen from + * @param name The probe name + */ + void addEventProbe(SimObject *obj, const char *name); }; #endif //__MEM_CACHE_PREFETCH_BASE_HH__ |