arm64: Add coherent busdma implementation
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Authored by andrew on Fri, Mar 28, 5:16 PM.

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Summary

Support a busdma implementation that can be used when the device is
cache-coherent. Because devices are cache coherent we can skip the
cacheline checks and all cache management.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 63182
Build 60066: arc lint + arc unit

Event Timeline

andrew created this revision.Fri, Mar 28, 5:16 PM

Herald added a reviewer: manu. · View Herald TranscriptFri, Mar 28, 5:16 PM

Herald added subscribers: emaste, imp. · View Herald Transcript

andrew requested review of this revision.Fri, Mar 28, 5:16 PM

Harbormaster completed remote builds in B63182: Diff 152800.Fri, Mar 28, 5:16 PM

andrew added a child revision: D49558: arm64: Move cacheline_bounce later.Fri, Mar 28, 5:16 PM

andrew added a parent revision: D49556: arm64: Mark functions we will duplicate.Fri, Mar 28, 5:17 PM

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Path

Size

sys/

arm64/

busdma_bounce.h

46 lines

busdma_bounce.c

28 lines

busdma_machdep.c

15 lines

include/

bus_dma_impl.h

1 line

Diff 152800

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sys/arm64/arm64/busdma_bounce.h

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sys/arm64/arm64/busdma_bounce.c

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sys/arm64/arm64/busdma_machdep.c

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sys/arm64/include/bus_dma_impl.h

arm64: Add coherent busdma implementationNeeds ReviewPublicActions

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Revision ContentsChangeset List

Diff 152800

sys/arm64/arm64/busdma_bounce.h

sys/arm64/arm64/busdma_bounce.c

sys/arm64/arm64/busdma_machdep.c

sys/arm64/include/bus_dma_impl.h

arm64: Add coherent busdma implementation
Needs ReviewPublic
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Revision Contents
Changeset List