gem5  v20.1.0.0
policy_fixed_prio.cc
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37  * Author: Matteo Andreozzi
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39 
41 
42 #include <algorithm>
43 #include <functional>
44 
45 #include "mem/request.hh"
46 
47 namespace QoS {
48 
50  : Policy(p), defaultPriority(p->qos_fixed_prio_default_prio)
51 {}
52 
54 {}
55 
56 void
58 {
59 }
60 
61 void
62 FixedPriorityPolicy::initRequestorName(std::string requestor, uint8_t priority)
63 {
64  priorityMap.insert(
65  this->pair<std::string, uint8_t>(requestor, priority));
66 }
67 
68 void
70  uint8_t priority)
71 {
72  priorityMap.insert(
73  this->pair<const SimObject*, uint8_t>(requestor, priority));
74 }
75 
76 uint8_t
78 {
79  // Reads a packet's RequestorID contained in its encapsulated request
80  // if a match is found in the configured priority map, returns the
81  // matching priority, else returns zero
82 
83  auto ret = priorityMap.find(id);
84 
85  if (ret != priorityMap.end()) {
86  return ret->second;
87  } else {
88  DPRINTF(QOS, "Requestor %s (RequestorID %d) not present in "
89  "priorityMap, assigning default priority %d\n",
91  id, defaultPriority);
92  return defaultPriority;
93  }
94 }
95 
96 } // namespace QoS
97 
99 QoSFixedPriorityPolicyParams::create()
100 {
101  return new QoS::FixedPriorityPolicy(this);
102 }
QoS
Definition: mem_ctrl.cc:42
data
const char data[]
Definition: circlebuf.test.cc:42
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:69
QoS::FixedPriorityPolicy
Fixed Priority QoS Policy.
Definition: policy_fixed_prio.hh:54
QoS::FixedPriorityPolicy::defaultPriority
const uint8_t defaultPriority
Default fixed priority value for non-listed requestors.
Definition: policy_fixed_prio.hh:94
request.hh
RequestorID
uint16_t RequestorID
Definition: request.hh:85
QoS::FixedPriorityPolicy::FixedPriorityPolicy
FixedPriorityPolicy(const Params *)
Definition: policy_fixed_prio.cc:49
DPRINTF
#define DPRINTF(x,...)
Definition: trace.hh:234
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:77
QoS::FixedPriorityPolicy::~FixedPriorityPolicy
virtual ~FixedPriorityPolicy()
Definition: policy_fixed_prio.cc:53
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:62
policy_fixed_prio.hh
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:100
QoS::Policy
QoS Policy base class.
Definition: policy.hh:58
QoS::Policy::Params
QoSPolicyParams Params
Definition: policy.hh:61
System::getRequestorName
std::string getRequestorName(RequestorID requestor_id)
Get the name of an object for a given request id.
Definition: system.cc:651
QoS::MemCtrl::system
System * system() const
read the system pointer
Definition: mem_ctrl.hh:350
MipsISA::p
Bitfield< 0 > p
Definition: pra_constants.hh:323
QoS::Policy::memCtrl
MemCtrl * memCtrl
Pointer to parent memory controller implementing the policy.
Definition: policy.hh:111
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:57
SimObject
Abstract superclass for simulation objects.
Definition: sim_object.hh:92

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