derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sim-power: Specify the states a PowerState object can be in

Browse Source 
This commit adds the concept of possible power states to the
PowerState SimObject. This is a list of the power states a specific
object can be in. Before transitioning to a power state, a PowerState
object will first check if the requested power states is actually an
allowed state. The user can restricted the power states a
ClockedObject can go to during configuration. In addition, this change
sets the power states, a CPU can be in.

Change-Id: Ida414a87554a14f09767a272b54b5d19bfc8e911
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/28050
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Anouk Van Laer
2017-10-04 14:15:36 +01:00
committed by Nikos Nikoleris
parent 818961969a
commit 4b2f2b5ced
4 changed files with 28 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/sim/PowerState.py
View File

@@ -62,6 +62,11 @@ class PowerState(SimObject):
# routine
default_state = Param.PwrState("UNDEFINED", "Default Power State")
# Possible power states this object can be in sorted from the most
# to the least performant
possible_states = VectorParam.PwrState(
[], "Power states this object can be in")
clk_gate_min = Param.Latency('1ns',"Min value of the distribution")
clk_gate_max = Param.Latency('1s',"Max value of the distribution")
clk_gate_bins = Param.Unsigned('20', "# bins in clk gated distribution")