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Differential D58107

simplebus: add support for reading 'dma-ranges' property
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Authored by mmel on Jul 8 2026, 11:36 AM.
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Subscribers
andrew
imp

Details

Reviewers
manu
andrew
Group Reviewers
arm64
Summary

Parse the "dma-ranges" device tree property on simplebus nodes
(analogous to the existing "ranges" support).

The parsed DMA ranges will be used for automatic BUSDMA(9) tag
creation in the future.

MFC after: 2 weeks

Diff Detail

Repository
rG FreeBSD src repository
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Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 74617
Build 71500: arc lint + arc unit

Event Timeline

mmel created this revision.Jul 8 2026, 11:36 AM
Herald added a subscriber: imp. · View Herald TranscriptJul 8 2026, 11:36 AM
mmel requested review of this revision.Jul 8 2026, 11:36 AM
mmel added a reviewer: arm64.Jul 8 2026, 11:37 AM
Harbormaster completed remote builds in B74617: Diff 181532.Jul 8 2026, 11:37 AM
andrew accepted this revision.Jul 8 2026, 12:53 PM
andrew added a subscriber: andrew.
andrew added inline comments.
sys/dev/fdt/simplebus.c
271

Is this needed? Both callers already set it to NULL

This revision is now accepted and ready to land.Jul 8 2026, 12:53 PM

Revision Contents
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sys/
dev/
fdt/
8 lines
94 lines

Diff 181532

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sys/dev/fdt/simplebus.h

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sys/dev/fdt/simplebus.c

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