Session-memory and image allocation now honor each binding's
memoryTypeBits with DEVICE_LOCAL preferred, not required: NVIDIA 610.88
legally places a video-session binding in host-visible-only memory and
the hard requirement refused the whole device. The bitstream ring keeps
its hard HOST_VISIBLE|COHERENT need. Smoke test gains
PF_VKD_SMOKE_VENDOR device pinning + attribution and a final-state
print (DPB mode now observed, not inferred).
On-glass matrix after this fix (.173, vendor-pinned): NVIDIA 4090
PASSES in COINCIDE mode — the first end-to-end run of the RESULT_STATUS
query path, ~44 per-frame driver verdicts on the recording pattern that
hangs RADV's VCN — and Adrenalin re-passes in distinct mode unchanged.
With RADV's distinct pass, both DPB arrangements and three of four
desktop drivers are now hardware-validated; Intel remains a clean caps
refusal (no SAMPLED on decode outputs — its rung stays D3D11VA).
Gates: fmt clean, clippy -D warnings zero, 45+27+53 green both
platforms.
enricobuehler
ca92dab6fd