Laguna S 2.1 Q4_K_M / ROCm b10008 without DFlash / native PP512 and separate TG128

User reports Laguna S 2.1 at 18.4 t/s generation and 305.5 t/s prompt processing on a Nimo Strix Halo box with an AMD Radeon 8060S Graphics GPU. Setup is poolsideai/llama.cpp laguna branch with Q4_K_M, -ngl 99, -fa 0 and --mmap 0; the printed model is laguna 118B.A8B Q4_K - Medium, 117.56 B parameters, 70.01 GiB. The figures are separate synthetic llama-bench phases, PP512 and TG128, with no DFlash active; KV cache type, threads, batch and repeats are not printed.