Differential D56244

powerpc: refactor dmamap setup; free dmamap in error paths
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Authored by adrian on Fri, Apr 3, 4:26 PM.

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Summary

refactor the dmamap allocation / setup path for future code changes to align with arm64 busdma code;
free the dmamap allocation if the dma segment list can't be allocated;
free the dmamap allocation during the busdma dmamem allocation path if the actual memory allocation itself fails.

Locally tested:

POWER9 ppc64le native boot, Raptor Engineering Blackbird
POWER8 ppc6le, IBM POWER S822LC

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Repository

rG FreeBSD src repository

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Build Status

Buildable 71946
Build 68829: arc lint + arc unit

Event Timeline

adrian created this revision.Fri, Apr 3, 4:26 PM

Herald added subscribers: jhibbits, imp. · View Herald TranscriptFri, Apr 3, 4:26 PM

adrian requested review of this revision.Fri, Apr 3, 4:26 PM

Harbormaster completed remote builds in B71946: Diff 174880.Fri, Apr 3, 4:26 PM

adrian added a parent revision: D56243: powerpc: busdma declaration shuffling.Fri, Apr 3, 4:27 PM

adrian added a reviewer: PowerPC.

adrian added a project: PowerPC.

Herald added subscribers: alfredo, luporl, bdragon. · View Herald TranscriptFri, Apr 3, 4:29 PM

Revision Contents
Changeset List

Path

Size

sys/

powerpc/

powerpc/

busdma_bounce.c

48 lines

Diff 174880

sys/powerpc/powerpc/busdma_bounce.c

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