gem5  v21.1.0.2
multi.cc
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37 
39 
40 #include "params/MultiPrefetcher.hh"
41 
42 namespace gem5
43 {
44 
46 namespace prefetch
47 {
48 
49 Multi::Multi(const MultiPrefetcherParams &p)
50  : Base(p),
51  prefetchers(p.prefetchers.begin(), p.prefetchers.end())
52 {
53 }
54 
55 void
57 {
58  for (auto pf : prefetchers)
59  pf->setCache(_cache);
60 }
61 
62 Tick
64 {
65  Tick next_ready = MaxTick;
66 
67  for (auto pf : prefetchers)
68  next_ready = std::min(next_ready, pf->nextPrefetchReadyTime());
69 
70  return next_ready;
71 }
72 
75 {
76  for (auto pf : prefetchers) {
77  if (pf->nextPrefetchReadyTime() <= curTick()) {
78  PacketPtr pkt = pf->getPacket();
79  panic_if(!pkt, "Prefetcher is ready but didn't return a packet.");
82  return pkt;
83  }
84  }
85 
86  return nullptr;
87 }
88 
89 } // namespace prefetch
90 } // namespace gem5
gem5::curTick
Tick curTick()
The universal simulation clock.
Definition: cur_tick.hh:46
multi.hh
gem5::prefetch::Base::StatGroup::pfIssued
statistics::Scalar pfIssued
Definition: base.hh:335
gem5::MaxTick
const Tick MaxTick
Definition: types.hh:60
gem5::prefetch::Multi::prefetchers
std::list< Base * > prefetchers
List of sub-prefetchers ordered by priority.
Definition: multi.hh:68
gem5::BaseCache
A basic cache interface.
Definition: base.hh:95
gem5::Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition: packet.hh:283
gem5::MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:326
gem5::Tick
uint64_t Tick
Tick count type.
Definition: types.hh:58
gem5::X86ISA::pf
Bitfield< 2 > pf
Definition: misc.hh:556
gem5::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(GuestABI, guest_abi)
gem5::prefetch::Base::prefetchStats
gem5::prefetch::Base::StatGroup prefetchStats
panic_if
#define panic_if(cond,...)
Conditional panic macro that checks the supplied condition and only panics if the condition is true a...
Definition: logging.hh:203
gem5::prefetch::Base::issuedPrefetches
uint64_t issuedPrefetches
Total prefetches issued.
Definition: base.hh:363
gem5::prefetch::Multi::setCache
void setCache(BaseCache *_cache) override
Definition: multi.cc:56
gem5::prefetch::Multi::Multi
Multi(const MultiPrefetcherParams &p)
Definition: multi.cc:49
gem5::prefetch::Multi::nextPrefetchReadyTime
Tick nextPrefetchReadyTime() const override
Definition: multi.cc:63
gem5::context_switch_task_id::Prefetcher
@ Prefetcher
Definition: request.hh:83
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40
gem5::prefetch::Base
Definition: base.hh:72
gem5::prefetch::Multi::getPacket
PacketPtr getPacket() override
Definition: multi.cc:74

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