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author | Krishnendra Nathella <krinat01@arm.com> | 2015-07-19 15:03:30 -0500 |
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committer | Krishnendra Nathella <krinat01@arm.com> | 2015-07-19 15:03:30 -0500 |
commit | cabd4768c7186911fda91b9ea458df775b79486a (patch) | |
tree | ded7b5edfa8d62f144258f9c8032744a86158d96 /LICENSE | |
parent | c0d19391d423d16c5dc587c4946e8395b9c0db91 (diff) | |
download | gem5-cabd4768c7186911fda91b9ea458df775b79486a.tar.xz |
cpu: Fix LLSC atomic CPU wakeup
Writes to locked memory addresses (LLSC) did not wake up the locking
CPU. This can lead to deadlocks on multi-core runs. In AtomicSimpleCPU,
recvAtomicSnoop was checking if the incoming packet was an invalidation
(isInvalidate) and only then handled a locked snoop. But, writes are
seen instead of invalidates when running without caches (fast-forward
configurations). As as simple fix, now handleLockedSnoop is also called
even if the incoming snoop packet are from writes.
Diffstat (limited to 'LICENSE')
0 files changed, 0 insertions, 0 deletions