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Apr 13, 2026
Add patches for both llvm-project (device-libs) and rocm-systems (CLR) to validate the coordinated hostcall protocol change in TheRock CI. The device-side and host-side changes replace the lock-free stack with a phase-toggle scanning approach and must land atomically — the buffer layout and synchronization protocol are incompatible between old and new. These patches should be removed when both submodules are bumped to include the upstream changes. Upstream PRs: - ROCm/llvm-project#2178 - ROCm/rocm-systems#4872 Co-Authored-By: Claude <noreply@anthropic.com>
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Cherry-pick of #2115 to amd-staging.
Optimize hostcall for high contention using an approach from Joseph Huber.
Original author: Brian Sumner