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| author | Javier Bueno <javier.bueno@metempsy.com> | 2018-11-09 16:02:04 +0100 |
|---|---|---|
| committer | Javier Bueno Hedo <javier.bueno@metempsy.com> | 2018-11-14 14:19:05 +0000 |
| commit | 8590243fef2e4ccaefde3af767496dec44c6eb33 (patch) | |
| tree | 6cf26aa22f26864a116bfe33ab0069ddb7084906 /src/mem/cache/base.hh | |
| parent | e8e92a12af8cc499659ad840c84c99e293ff1e96 (diff) | |
| download | gem5-8590243fef2e4ccaefde3af767496dec44c6eb33.tar.xz | |
mem-cache: implement a probe-based interface
The HW Prefetcher of a cache can now listen events
from their associated CPUs and from its own cache.
Change-Id: I28aecd8faf8ed44be94464d84485bd1cea2efae3
Reviewed-on: https://gem5-review.googlesource.com/c/14155
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Diffstat (limited to 'src/mem/cache/base.hh')
| -rw-r--r-- | src/mem/cache/base.hh | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/src/mem/cache/base.hh b/src/mem/cache/base.hh index 52b0fdbcd..ad5ff3bc4 100644 --- a/src/mem/cache/base.hh +++ b/src/mem/cache/base.hh @@ -75,6 +75,7 @@ #include "mem/request.hh" #include "params/WriteAllocator.hh" #include "sim/eventq.hh" +#include "sim/probe/probe.hh" #include "sim/serialize.hh" #include "sim/sim_exit.hh" #include "sim/system.hh" @@ -324,10 +325,11 @@ class BaseCache : public MemObject /** Prefetcher */ BasePrefetcher *prefetcher; - /** - * Notify the prefetcher on every access, not just misses. - */ - const bool prefetchOnAccess; + /** To probe when a cache hit occurs */ + ProbePointArg<PacketPtr> *ppHit; + + /** To probe when a cache miss occurs */ + ProbePointArg<PacketPtr> *ppMiss; /** * The writeAllocator drive optimizations for streaming writes. @@ -989,6 +991,9 @@ class BaseCache : public MemObject */ void regStats() override; + /** Registers probes. */ + void regProbePoints() override; + public: BaseCache(const BaseCacheParams *p, unsigned blk_size); ~BaseCache(); @@ -1136,6 +1141,14 @@ class BaseCache : public MemObject } /** + * Checks if the cache is coalescing writes + * + * @return True if the cache is coalescing writes + */ + bool coalesce() const; + + + /** * Cache block visitor that writes back dirty cache blocks using * functional writes. */ @@ -1175,7 +1188,6 @@ class BaseCache : public MemObject */ void serialize(CheckpointOut &cp) const override; void unserialize(CheckpointIn &cp) override; - }; /** |