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authorNikos Nikoleris <nikos.nikoleris@arm.com>2017-10-09 13:57:49 +0100
committerNikos Nikoleris <nikos.nikoleris@arm.com>2017-11-21 13:54:35 +0000
commitd3ec34201c14d551e864372a89ccddb1c255e77a (patch)
tree89bc694a57a35a5bdf9d4e33f5530c4dd6ee95bf /tests
parent2ec997fb73eab01229909f0c91f7ff5456f7250a (diff)
downloadgem5-d3ec34201c14d551e864372a89ccddb1c255e77a.tar.xz
cpu-o3: Prevent cpu from suspending if it is already draining
Suspending the current thread context while draining due to a quiesce pseudo instruction (for example a wfi instruction) could deadlock the cpu and prevent it from successfully draining. This change ensures that the cpu is not draining before suspending the thread context. Change-Id: I7c019847f5a870d4bc9ce2b19936bc3dc45e5fd7 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/5881 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
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