gem5  v21.1.0.2
policy_fixed_prio.cc
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37 
39 
40 #include <algorithm>
41 #include <functional>
42 
43 #include "base/trace.hh"
44 #include "debug/QOS.hh"
45 #include "mem/request.hh"
46 #include "params/QoSFixedPriorityPolicy.hh"
47 
48 namespace gem5
49 {
50 
51 namespace memory
52 {
53 
55 namespace qos
56 {
57 
59  : Policy(p), defaultPriority(p.qos_fixed_prio_default_prio)
60 {}
61 
63 {}
64 
65 void
67 {
68 }
69 
70 void
71 FixedPriorityPolicy::initRequestorName(std::string requestor, uint8_t priority)
72 {
73  priorityMap.insert(
74  this->pair<std::string, uint8_t>(requestor, priority));
75 }
76 
77 void
79  uint8_t priority)
80 {
81  priorityMap.insert(
82  this->pair<const SimObject*, uint8_t>(requestor, priority));
83 }
84 
85 uint8_t
87 {
88  // Reads a packet's RequestorID contained in its encapsulated request
89  // if a match is found in the configured priority map, returns the
90  // matching priority, else returns zero
91 
92  auto ret = priorityMap.find(id);
93 
94  if (ret != priorityMap.end()) {
95  return ret->second;
96  } else {
97  DPRINTF(QOS, "Requestor %s (RequestorID %d) not present in "
98  "priorityMap, assigning default priority %d\n",
100  id, defaultPriority);
101  return defaultPriority;
102  }
103 }
104 
105 } // namespace qos
106 } // namespace memory
107 } // namespace gem5
gem5::memory::qos::FixedPriorityPolicy::init
void init() override
init() is called after all C++ SimObjects have been created and all ports are connected.
Definition: policy_fixed_prio.cc:66
gem5::memory::qos::Policy::memCtrl
MemCtrl * memCtrl
Pointer to parent memory controller implementing the policy.
Definition: policy.hh:124
data
const char data[]
Definition: circlebuf.test.cc:48
gem5::memory::qos::Policy
QoS Policy base class.
Definition: policy.hh:71
memory
Definition: mem.h:38
gem5::memory::qos::FixedPriorityPolicy::initRequestorObj
void initRequestorObj(const SimObject *requestor, uint8_t priority)
Initialize the fixed requestor's priority by providing the requestor's SimObject pointer and priority...
Definition: policy_fixed_prio.cc:78
gem5::memory::GEM5_DEPRECATED_NAMESPACE
GEM5_DEPRECATED_NAMESPACE(QoS, qos)
gem5::memory::qos::FixedPriorityPolicy::~FixedPriorityPolicy
virtual ~FixedPriorityPolicy()
Definition: policy_fixed_prio.cc:62
gem5::memory::qos::FixedPriorityPolicy::schedule
virtual uint8_t schedule(const RequestorID, const uint64_t) override
Schedules a packet based on fixed priority configuration.
Definition: policy_fixed_prio.cc:86
request.hh
DPRINTF
#define DPRINTF(x,...)
Definition: trace.hh:186
gem5::MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:326
gem5::memory::qos::FixedPriorityPolicy::FixedPriorityPolicy
FixedPriorityPolicy(const Params &)
Definition: policy_fixed_prio.cc:58
gem5::System::getRequestorName
std::string getRequestorName(RequestorID requestor_id)
Get the name of an object for a given request id.
Definition: system.cc:637
gem5::memory::qos::MemCtrl::system
System * system() const
read the system pointer
Definition: mem_ctrl.hh:371
gem5::memory::qos::Policy::Params
QoSPolicyParams Params
Definition: policy.hh:74
gem5::memory::qos::FixedPriorityPolicy::priorityMap
std::map< RequestorID, uint8_t > priorityMap
Priority map, associates configured requestors with a fixed QoS priority value.
Definition: policy_fixed_prio.hh:111
gem5::SimObject
Abstract superclass for simulation objects.
Definition: sim_object.hh:146
gem5::memory::qos::FixedPriorityPolicy::defaultPriority
const uint8_t defaultPriority
Default fixed priority value for non-listed requestors.
Definition: policy_fixed_prio.hh:105
gem5::memory::qos::FixedPriorityPolicy::initRequestorName
void initRequestorName(std::string requestor, uint8_t priority)
Initialize the fixed requestor's priority by providing the requestor's name and priority value.
Definition: policy_fixed_prio.cc:71
policy_fixed_prio.hh
gem5::RequestorID
uint16_t RequestorID
Definition: request.hh:95
trace.hh
gem5
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
Definition: decoder.cc:40

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