Tags.py (12964:0315ef861b8a) Tags.py (13219:454ecc63338d)
1# Copyright (c) 2012-2013 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license

--- 24 unchanged lines hidden (view full) ---

33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Prakash Ramrakhyani
37
38from m5.params import *
39from m5.proxy import *
40from ClockedObject import ClockedObject
1# Copyright (c) 2012-2013 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license

--- 24 unchanged lines hidden (view full) ---

33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Prakash Ramrakhyani
37
38from m5.params import *
39from m5.proxy import *
40from ClockedObject import ClockedObject
41from IndexingPolicies import *
41
42class BaseTags(ClockedObject):
43 type = 'BaseTags'
44 abstract = True
45 cxx_header = "mem/cache/tags/base.hh"
46 # Get the size from the parent (cache)
47 size = Param.MemorySize(Parent.size, "capacity in bytes")
48

--- 10 unchanged lines hidden (view full) ---

59
60 # Get the warmup percentage from the parent (cache)
61 warmup_percentage = Param.Percent(Parent.warmup_percentage,
62 "Percentage of tags to be touched to warm up the cache")
63
64 sequential_access = Param.Bool(Parent.sequential_access,
65 "Whether to access tags and data sequentially")
66
42
43class BaseTags(ClockedObject):
44 type = 'BaseTags'
45 abstract = True
46 cxx_header = "mem/cache/tags/base.hh"
47 # Get the size from the parent (cache)
48 size = Param.MemorySize(Parent.size, "capacity in bytes")
49

--- 10 unchanged lines hidden (view full) ---

60
61 # Get the warmup percentage from the parent (cache)
62 warmup_percentage = Param.Percent(Parent.warmup_percentage,
63 "Percentage of tags to be touched to warm up the cache")
64
65 sequential_access = Param.Bool(Parent.sequential_access,
66 "Whether to access tags and data sequentially")
67
68 # Get indexing policy
69 indexing_policy = Param.BaseIndexingPolicy(SetAssociative(),
70 "Indexing policy")
71
72 # Set the indexing entry size as the block size
73 entry_size = Param.Int(Parent.cache_line_size,
74 "Indexing entry size in bytes")
75
67class BaseSetAssoc(BaseTags):
68 type = 'BaseSetAssoc'
69 cxx_header = "mem/cache/tags/base_set_assoc.hh"
70
71 # Get the cache associativity
72 assoc = Param.Int(Parent.assoc, "associativity")
73
74 # Get replacement policy from the parent (cache)

--- 5 unchanged lines hidden (view full) ---

80 cxx_header = "mem/cache/tags/sector_tags.hh"
81
82 # Get the cache associativity
83 assoc = Param.Int(Parent.assoc, "associativity")
84
85 # Number of sub-sectors (data blocks) per sector
86 num_blocks_per_sector = Param.Int(1, "Number of sub-sectors per sector");
87
76class BaseSetAssoc(BaseTags):
77 type = 'BaseSetAssoc'
78 cxx_header = "mem/cache/tags/base_set_assoc.hh"
79
80 # Get the cache associativity
81 assoc = Param.Int(Parent.assoc, "associativity")
82
83 # Get replacement policy from the parent (cache)

--- 5 unchanged lines hidden (view full) ---

89 cxx_header = "mem/cache/tags/sector_tags.hh"
90
91 # Get the cache associativity
92 assoc = Param.Int(Parent.assoc, "associativity")
93
94 # Number of sub-sectors (data blocks) per sector
95 num_blocks_per_sector = Param.Int(1, "Number of sub-sectors per sector");
96
97 # The indexing entry now is a sector block
98 entry_size = Parent.cache_line_size * Self.num_blocks_per_sector
99
88 # Get replacement policy from the parent (cache)
89 replacement_policy = Param.BaseReplacementPolicy(
90 Parent.replacement_policy, "Replacement policy")
91
92class FALRU(BaseTags):
93 type = 'FALRU'
94 cxx_class = 'FALRU'
95 cxx_header = "mem/cache/tags/fa_lru.hh"
96
97 min_tracked_cache_size = Param.MemorySize("128kB", "Minimum cache size for"
98 " which we track statistics")
100 # Get replacement policy from the parent (cache)
101 replacement_policy = Param.BaseReplacementPolicy(
102 Parent.replacement_policy, "Replacement policy")
103
104class FALRU(BaseTags):
105 type = 'FALRU'
106 cxx_class = 'FALRU'
107 cxx_header = "mem/cache/tags/fa_lru.hh"
108
109 min_tracked_cache_size = Param.MemorySize("128kB", "Minimum cache size for"
110 " which we track statistics")
99class SkewedAssoc(BaseSetAssoc):
100 type = 'SkewedAssoc'
101 cxx_header = "mem/cache/tags/skewed_assoc.hh"
111
112 # This tag uses its own embedded indexing
113 indexing_policy = NULL