1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Copyright (c) 2018 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Matteo Andreozzi
*/
#ifndef __MEM_QOS_POLICY_FIXED_PRIO_HH__
#define __MEM_QOS_POLICY_FIXED_PRIO_HH__
#include "mem/qos/policy.hh"
#include "params/QoSFixedPriorityPolicy.hh"
namespace QoS {
/**
* Fixed Priority QoS Policy
*
* Fixed Priority Policy: based on a configured MasterID to priority map,
* it returns a fixed QoS priority value: every master has a fixed priority.
*/
class FixedPriorityPolicy : public Policy
{
using Params = QoSFixedPriorityPolicyParams;
public:
FixedPriorityPolicy(const Params*);
virtual ~FixedPriorityPolicy();
void init() override;
/**
* Initialize the fixed master's priority by providing
* the master's name and priority value.
* The master's name has to match a name in the system.
*
* @param master master's name to lookup.
* @param priority priority value for the master
*/
void initMasterName(std::string master, uint8_t priority);
/**
* Initialize the fixed master's priority by providing
* the master's SimObject pointer and priority value.
*
* @param master master's SimObject pointer to lookup.
* @param priority priority value for the master
*/
void initMasterObj(const SimObject* master, uint8_t priority);
/**
* Schedules a packet based on fixed priority configuration
*
* @param mId master id to schedule
* @param data data to schedule
* @return QoS priority value
*/
virtual uint8_t schedule(const MasterID, const uint64_t) override;
protected:
/** Default fixed priority value for non-listed masters */
const uint8_t defaultPriority;
/**
* Priority map, associates configured masters with
* a fixed QoS priority value
*/
std::map<MasterID, uint8_t> priorityMap;
};
} // namespace QoS
#endif // __MEM_QOS_POLICY_FIXED_PRIO_HH__
|
