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Differential D57766

linuxkpi: add dma_sync_sg_for_{cpu, device}
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Authored by zishun.yi.dev_gmail.com on Jun 23 2026, 8:49 AM.
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emaste
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bz
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linuxkpi
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rG9dec0cd79c69: LinuxKPI: implement dma_sync_sg_for_{cpu, device}()
Summary

Add dma_sync_sg_for_{cpu, device} and dma_sync_sgtable_for_{cpu,
device}. These functions are useful for my GSoC 2026 project, udmabuf.

Diff Detail

Repository
rG FreeBSD src repository
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Lint Skipped
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Tests Skipped
Build Status
Buildable 74139
Build 71022: arc lint + arc unit

Event Timeline

zishun.yi.dev_gmail.com created this revision.Jun 23 2026, 8:49 AM
Herald added subscribers: emaste, imp. · View Herald TranscriptJun 23 2026, 8:49 AM
zishun.yi.dev_gmail.com requested review of this revision.Jun 23 2026, 8:49 AM
Harbormaster completed remote builds in B74139: Diff 180358.Jun 23 2026, 8:49 AM
zishun.yi.dev_gmail.com added a parent revision: D55497: linuxkpi: Fix DMA_BIDIRECTIONAL mapping.Jun 23 2026, 8:55 AM
emaste added a project: linuxkpi.Mon, Aug 17, 5:00 PM
bz requested changes to this revision.Sat, Sep 5, 9:09 AM
bz added inline comments.
sys/compat/linuxkpi/common/src/linux_pci.c
1899

I assume this is an internal helper function and not a public Linux KPI (dma_sync_sg()). Then it should be called lkpi_dma_sync_sg()

This revision now requires changes to proceed.Sat, Sep 5, 9:09 AM
zishun.yi.dev_gmail.com updated this revision to Diff 185918.Sat, Sep 5, 1:36 PM
zishun.yi.dev_gmail.com marked an inline comment as done.

rename to lkpi_dma_sync_sg()

Harbormaster completed remote builds in B76562: Diff 185918.Sat, Sep 5, 1:36 PM
bz accepted this revision.Sat, Sep 5, 8:03 PM
This revision is now accepted and ready to land.Sat, Sep 5, 8:03 PM
Closed by commit rG9dec0cd79c69: LinuxKPI: implement dma_sync_sg_for_{cpu, device}() (authored by zishun.yi.dev_gmail.com, committed by bz). · Explain WhySun, Sep 6, 12:14 AM
This revision was automatically updated to reflect the committed changes.
bz added a commit: rG9dec0cd79c69: LinuxKPI: implement dma_sync_sg_for_{cpu, device}().

Revision Contents
Changeset List

PathSize
sys/
compat/
linuxkpi/
common/
include/
linux/
51 lines
src/
11 lines

Diff 180358

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sys/compat/linuxkpi/common/include/linux/dma-mapping.h

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sys/compat/linuxkpi/common/src/linux_pci.c

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