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Differential D55313

powerpc: initial straight port of busdma_machdep.c -> busdma_bounce.c
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Authored by adrian on Feb 16 2026, 8:11 PM.
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Subscribers
alfredo
bdragon
imp
jhibbits
luporl

Details

Reviewers
jhibbits
tpearson_raptorengineering.com
Summary

This is a straight port of the code and doesn't yet handle
different implementations (which will be in a subsequent commit.)

Locally tested:

  • G5 SMP (2x PPC970mp)
  • power8 / power9 pseries QEMU VM
  • power8 powernv

Diff Detail

Repository
rG FreeBSD src repository
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Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 72676
Build 69559: arc lint + arc unit

Event Timeline

adrian created this revision.Feb 16 2026, 8:11 PM
Herald added subscribers: jhibbits, imp. · View Herald TranscriptFeb 16 2026, 8:11 PM
adrian requested review of this revision.Feb 16 2026, 8:11 PM
Harbormaster completed remote builds in B70713: Diff 172029.Feb 16 2026, 8:11 PM
adrian added a child revision: D55314: powerpc: create a tag with the parents implementation if supplied.Feb 16 2026, 8:12 PM
adrian added a parent revision: D55312: powerpc: implement lock iteration for mmu_oea64 pmap.
adrian added reviewers: jhibbits, tpearson_raptorengineering.com.Feb 17 2026, 4:11 PM
adrian added a project: PowerPC.
Herald added subscribers: alfredo, luporl, bdragon. · View Herald TranscriptFeb 17 2026, 4:11 PM
adrian updated this revision to Diff 172127.Feb 18 2026, 6:28 AM

refactor

Harbormaster completed remote builds in B70740: Diff 172127.Feb 18 2026, 6:28 AM
tpearson_raptorengineering.com mentioned this in D55315: powerpc: add in some busdma domain setup.Feb 18 2026, 2:39 PM
adrian updated this revision to Diff 176912.Thu, Apr 30, 3:02 PM

rebase after jhb's vm_offset_t changes

Harbormaster completed remote builds in B72676: Diff 176912.Thu, Apr 30, 3:02 PM

Revision Contents
Changeset List

PathSize
sys/
conf/
1 line
powerpc/
include/
145 lines
82 lines
powerpc/
busdma_bounce.c
busdma_machdep.c
343 lines
711 lines
pseries/
1 line

Diff 176912

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sys/conf/files.powerpc

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sys/powerpc/include/bus_dma.h

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sys/powerpc/include/bus_dma_impl.h

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sys/powerpc/powerpc/busdma_bounce.c

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sys/powerpc/powerpc/busdma_machdep.c

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sys/powerpc/pseries/phyp_vscsi.c

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