Phase-1 audit closes with a substantively different picture than the
original scaffold's TBDs:
- Tomeu Vizoso's RK3588 NPU work merged in Linux 6.18 (Nov 2025) under
codename `rocket` (NOT `rknpu`). All references updated.
- Boltzmann's `linux-rk3588-marfrit-A1` (7.0.0-rc3-ARCH+) already ships
`drivers/accel/rocket/rocket.ko` as a built-but-not-loaded module.
- DT bindings + per-core nodes (`npu@fdab/c/d_0000`,
compatible `rockchip,rk3588-rknn-core`) in mainline since 6.18 but
ship `status = "disabled"` — board enable is the Phase-2 unblock,
not a driver port.
- Mesa 25.3 ships Rocket Gallium + Teflon TFLite delegate as the
authoritative userspace reference for the uAPI shape.
- Op coverage today is conv-centric (MobileNet-class); transformer
matmul needs the conv-1×1 shoehorn (RKNPU2 BSP precedent) or rocket
op-set additions. Surfaced as Phase-2-load-bearing risk.
- IOMMU v1.0 hazard: 32 GB host needs `mem=4G` or local
`rockchip,rk3568-iommu-v1` discriminator patches before the first
NPU job, to avoid DMA-window faults.
Files:
- docs/npu-mainline-status.md: full audit table with upstream pointers
(kernel.org / Mesa docs / dri-devel patch URLs / Tomeu's "we are in
mainline" blog post).
- docs/phases.md: per-phase log entry for Phase-1 closeout.
- docs/op-coverage.md: matmul-vs-conv-vs-rocket-op-set framing.
- fleet/boltzmann.yaml: audited kernel + npu_driver + dt_npu_nodes
state.
- kernel/dt-overlays/rk3588-rosenblatt-npu-enable.dtso: overlay to
flip the three rknn-core nodes to "okay" (+ matching mmu nodes),
carries the IOMMU-mitigation warning inline.
- kernel/README.md: kernel-agent scope wiring + anticipated local
carry patches.
- README.md: phase-status table + "rknpu → rocket" rename note.
- TODO.md: Phase-2 unblock concrete steps + standing
upstream-watch items.
