Robert Allan JamesandClaude Sonnet 5
7187d68082
Previously deferred (rpi5_native_boot.c's own header comment flagged this as needing interval-splitting logic written blind against hardware not yet in hand) -- revisited by fetching bcm2712-ds.dtsi directly rather than assuming reserved-memory was empty or absent. It has one static child (atf@0, ARM Trusted Firmware's own region) and one dynamic child (linux,cma, size/alloc-ranges only, no fixed reg) -- the dynamic one is skipped, nothing fixed to carve and no allocator this early to service it against anyway. Adds two fdt.c primitives: fdt_find_node_by_name() (reserved-memory has neither compatible nor device_type per DT spec) and fdt_next_child_node() -- one exported symbol, not the two-primitive general sibling-walker originally sketched, collapsed after review since the only real use here is "iterate one node's direct children." collect_reserved_ranges() reads each child's own #address-cells/ #size-cells with a fallback to root's only if absent -- confirmed necessary, not just defensive: reserved-memory's own declared <2>/<1> genuinely differs from root's <2>/<2>. emit_region_with_carveouts() clips a sorted reserved-range list against each RAM region, emitting alternating EfiConventionalMemory gaps and EfiReservedMemoryType carve-outs (insertion sort, no libc qsort in freestanding). RPI5_MAX_MEMMAP_ENTRIES is the exact worst-case count, recomputed rather than estimated -- the rpi5_mailbox.c buffer-size bug is the standing lesson for this pattern. Compile-only-verified; nothing in the existing UEFI/QEMU path calls rpi5_native_boot(), so this cannot be exercised until real hardware. Verified 3-arch boot to ok>/zuse)ok>. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var
experiments/
Design of Experiments (DoE) campaign data and analysis for the LithosAnanke kernel.
bare_metal/— the bare-metal DoE experiment: blind full-factorial 2⁴ runs measuring the L8 Jacquard mode selector's effect on the Steady-State Machine across amd64/aarch64/riscv64. Seeexperiments/bare_metal/README.mdfor the full directory layout (runs/,latest/,analysis/{charts,tables,report}).
Hosted-VM DoE campaigns (factorial/heartbeat/ablation studies) live under
docs/working/experiments/ instead — this top-level directory is
specifically the kernel/bare-metal side.