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| author | Nilay Vaish <nilay@cs.wisc.edu> | 2015-04-29 22:35:22 -0500 |
|---|---|---|
| committer | Nilay Vaish <nilay@cs.wisc.edu> | 2015-04-29 22:35:22 -0500 |
| commit | 43335495754abac71377bbd6df0c668b60b22822 (patch) | |
| tree | 62ca271baac3fafb041bf24acaaeef14f6ab8e97 /configs | |
| parent | 0dbd696aaef47205c1430b53841423c7d25455ed (diff) | |
| download | gem5-43335495754abac71377bbd6df0c668b60b22822.tar.xz | |
cpu: o3: replace issueLatency with bool pipelined
Currently, each op class has a parameter issueLat that denotes the cycles after
which another op of the same class can be issued. As of now, this latency can
either be one cycle (fully pipelined) or same as execution latency of the op
(not at all pipelined). The fact that issueLat is a parameter of type Cycles
makes one believe that it can be set to any value. To avoid the confusion, the
parameter is being renamed as 'pipelined' with type boolean. If set to true,
the op would execute in a fully pipelined fashion. Otherwise, it would execute
in an unpipelined fashion.
Diffstat (limited to 'configs')
| -rw-r--r-- | configs/common/O3_ARM_v7a.py | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/configs/common/O3_ARM_v7a.py b/configs/common/O3_ARM_v7a.py index 7d4987d7f..1bb2b4a5e 100644 --- a/configs/common/O3_ARM_v7a.py +++ b/configs/common/O3_ARM_v7a.py @@ -36,9 +36,9 @@ class O3_ARM_v7a_Simple_Int(FUDesc): # Complex ALU instructions have a variable latencies class O3_ARM_v7a_Complex_Int(FUDesc): - opList = [ OpDesc(opClass='IntMult', opLat=3, issueLat=1), - OpDesc(opClass='IntDiv', opLat=12, issueLat=12), - OpDesc(opClass='IprAccess', opLat=3, issueLat=1) ] + opList = [ OpDesc(opClass='IntMult', opLat=3, pipelined=True), + OpDesc(opClass='IntDiv', opLat=12, pipelined=False), + OpDesc(opClass='IprAccess', opLat=3, pipelined=True) ] count = 1 @@ -67,8 +67,8 @@ class O3_ARM_v7a_FP(FUDesc): OpDesc(opClass='FloatAdd', opLat=5), OpDesc(opClass='FloatCmp', opLat=5), OpDesc(opClass='FloatCvt', opLat=5), - OpDesc(opClass='FloatDiv', opLat=9, issueLat=9), - OpDesc(opClass='FloatSqrt', opLat=33, issueLat=33), + OpDesc(opClass='FloatDiv', opLat=9, pipelined=False), + OpDesc(opClass='FloatSqrt', opLat=33, pipelined=False), OpDesc(opClass='FloatMult', opLat=4) ] count = 2 |