DMA ring transport between the host and the T2 coprocessor.
Provides mailbox handshake, queue setup, and firmware keepalive
for higher-level T2 services (VHCI, audio, etc.).
Tested-on: MacBookPro16,2 (A2251), Mac mini 8,1 (A1993)
Differential D57088 Authored by seuros on May 19 2026, 10:29 AM.
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Summary DMA ring transport between the host and the T2 coprocessor. Tested-on: MacBookPro16,2 (A2251), Mac mini 8,1 (A1993)
Diff Detail
Event TimelineHerald added a subscriber: imp. · View Herald TranscriptMay 19 2026, 10:29 AM2026-05-19 10:29:38 (UTC+0) Harbormaster completed remote builds in B73218: Diff 178081.May 19 2026, 10:29 AM2026-05-19 10:29:38 (UTC+0) adrian added a parent revision: D57087: nvme: add Apple T2 ANS2 NVMe quirks.May 20 2026, 4:36 PM2026-05-20 16:36:35 (UTC+0) This revision is now accepted and ready to land.May 30 2026, 1:30 AM2026-05-30 01:30:28 (UTC+0) Closed by commit rG6fd2ad9aa39d: apple_bce: add Apple T2 Buffer Copy Engine driver. · Explain WhyJun 14 2026, 8:57 PM2026-06-14 20:57:47 (UTC+0) This revision was automatically updated to reflect the committed changes.
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