Ports Mesa rkt_task.c (fill_task + single-tile rkt_split_tasks branch) into
rkt_matmul.c so the declared public API is now real: a plain (M,N,K) GEMM is
mapped to a 1x1 conv and every low-level CNA/CORE/DPU field (banks, atomic
count, line/surface strides, data entries, kernel/channel alignment) is
derived from the NVDLA CBUF geometry (CBUF_BANKS=12, ENTRY=128, ATOMIC=16),
then handed to the two emit stages. Single-tile only: shapes needing CBUF
task-splitting return -1 rather than mis-emit.
selftest now drives the unified builder as the primary path; it produces a
buffer structurally identical to the hand-filled stage path (148 words, same
PC/CNA/CORE/DPU histogram) and refuses an oversized split-required shape.
Clean -Wall -Wextra, ALL PASS.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
claude-noether
b39d23153d