gem5
v21.0.0.0
Main Page
Related Pages
Modules
Namespaces
Namespace List
Namespace Members
All
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Functions
_
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
Variables
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Typedefs
a
c
d
e
f
g
h
i
m
n
o
p
r
s
t
u
v
w
x
Enumerations
a
c
d
e
f
i
l
m
o
p
r
s
t
v
x
Enumerator
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
x
z
Classes
Class List
Class Index
Class Hierarchy
Class Members
All
:
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
~
Functions
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
~
Variables
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
Typedefs
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
y
Enumerations
a
b
c
d
e
f
g
h
i
l
m
n
o
p
r
s
t
u
w
Enumerator
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
x
z
Related Functions
:
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
x
Files
File List
File Members
All
_
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
z
Functions
_
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
z
Variables
_
a
b
c
d
e
f
g
h
i
j
l
m
n
o
p
r
s
t
u
v
Typedefs
_
a
b
c
d
e
f
g
h
i
l
m
n
o
p
q
r
s
t
u
v
w
Enumerations
_
a
b
c
d
e
f
g
h
i
l
m
o
p
q
r
s
t
v
Enumerator
_
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
x
Macros
_
a
b
c
d
e
f
g
h
i
k
l
m
n
o
p
q
r
s
t
u
v
w
x
z
•
All
Classes
Namespaces
Files
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Macros
Modules
Pages
mem
cache
prefetch
multi.cc
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2014, 2019 ARM Limited
3
* All rights reserved
4
*
5
* The license below extends only to copyright in the software and shall
6
* not be construed as granting a license to any other intellectual
7
* property including but not limited to intellectual property relating
8
* to a hardware implementation of the functionality of the software
9
* licensed hereunder. You may use the software subject to the license
10
* terms below provided that you ensure that this notice is replicated
11
* unmodified and in its entirety in all distributions of the software,
12
* modified or unmodified, in source code or in binary form.
13
*
14
* Redistribution and use in source and binary forms, with or without
15
* modification, are permitted provided that the following conditions are
16
* met: redistributions of source code must retain the above copyright
17
* notice, this list of conditions and the following disclaimer;
18
* redistributions in binary form must reproduce the above copyright
19
* notice, this list of conditions and the following disclaimer in the
20
* documentation and/or other materials provided with the distribution;
21
* neither the name of the copyright holders nor the names of its
22
* contributors may be used to endorse or promote products derived from
23
* this software without specific prior written permission.
24
*
25
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36
*/
37
38
#include "
mem/cache/prefetch/multi.hh
"
39
40
#include "params/MultiPrefetcher.hh"
41
42
namespace
Prefetcher
{
43
44
Multi::Multi
(
const
MultiPrefetcherParams &
p
)
45
:
Base
(
p
),
46
prefetchers(
p
.prefetchers.begin(),
p
.prefetchers.end())
47
{
48
}
49
50
void
51
Multi::setCache
(
BaseCache
*_cache)
52
{
53
for
(
auto
pf
:
prefetchers
)
54
pf
->setCache(_cache);
55
}
56
57
Tick
58
Multi::nextPrefetchReadyTime
()
const
59
{
60
Tick
next_ready =
MaxTick
;
61
62
for
(
auto
pf
:
prefetchers
)
63
next_ready = std::min(next_ready,
pf
->nextPrefetchReadyTime());
64
65
return
next_ready;
66
}
67
68
PacketPtr
69
Multi::getPacket
()
70
{
71
for
(
auto
pf
:
prefetchers
) {
72
if
(
pf
->nextPrefetchReadyTime() <=
curTick
()) {
73
PacketPtr
pkt =
pf
->getPacket();
74
panic_if
(!pkt,
"Prefetcher is ready but didn't return a packet."
);
75
return
pkt;
76
}
77
}
78
79
return
nullptr
;
80
}
81
82
}
// namespace Prefetcher
Prefetcher::Multi::getPacket
PacketPtr getPacket() override
Definition:
multi.cc:69
multi.hh
X86ISA::pf
Bitfield< 2 > pf
Definition:
misc.hh:550
Tick
uint64_t Tick
Tick count type.
Definition:
types.hh:59
Prefetcher::Base
Definition:
base.hh:65
Prefetcher
Copyright (c) 2018 Metempsy Technology Consulting All rights reserved.
Definition:
base.hh:78
BaseCache
A basic cache interface.
Definition:
base.hh:89
Prefetcher::Multi::nextPrefetchReadyTime
Tick nextPrefetchReadyTime() const override
Definition:
multi.cc:58
Prefetcher::Multi::setCache
void setCache(BaseCache *_cache) override
Definition:
multi.cc:51
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:197
Packet
A Packet is used to encapsulate a transfer between two objects in the memory system (e....
Definition:
packet.hh:258
curTick
Tick curTick()
The universal simulation clock.
Definition:
cur_tick.hh:43
Prefetcher::Multi::Multi
Multi(const MultiPrefetcherParams &p)
Definition:
multi.cc:44
MipsISA::p
Bitfield< 0 > p
Definition:
pra_constants.hh:323
MaxTick
const Tick MaxTick
Definition:
types.hh:61
Prefetcher::Multi::prefetchers
std::list< Base * > prefetchers
List of sub-prefetchers ordered by priority.
Definition:
multi.hh:63
Generated on Tue Mar 23 2021 19:41:27 for gem5 by
doxygen
1.8.17