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pci_dw: add support for 64-bit sized ATU windows
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Authored by mmel on Jul 8 2026, 11:15 AM.
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arm64
ARM
Summary

Split the LIMIT_ADDR register into separate lower (LWR_LIMIT_ADDR)
and upper (UPPER_LIMIT_ADDR) registers in both the legacy and unrolled
iATU modes. This is required to properly support ATU windows larger
than 4GB.

MFC after: 2 weeks

Diff Detail

Repository
rG FreeBSD src repository
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Unit
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Build Status
Buildable 74612
Build 71495: arc lint + arc unit