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Differential D25665

DMAR split-out (part 2)
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Authored by br on Jul 14 2020, 1:01 PM.
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imp
val_packett.cool

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Reviewers
kib
Commits
rS363310: o Move iommu_test_boundary() to sys/iommu.h
Summary

o Change DMAR->IOMMU in comments
o Add IOMMU_PAGE_SIZE / IOMMU_PAGE_MASK
o x86 only: dmar_quirks_pre_use() / dmar_instantiate_rmrr_ctxs()

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Event Timeline

br requested review of this revision.Jul 14 2020, 1:01 PM
br created this revision.
val_packett.cool added a subscriber: val_packett.cool.Jul 14 2020, 5:18 PM
val_packett.cool added inline comments.
sys/x86/iommu/busdma_dmar.c
118

"I/O Memory Management Unit unit" - maybe no need for that second "unit"..

br updated this revision to Diff 74452.Jul 14 2020, 7:37 PM

Move entries_cnt to iommu_domain.
Move iommu_test_boundary to sys/iommu.h.

br updated this revision to Diff 74517.Jul 16 2020, 1:07 PM

x86 headers included for amd64/x86 only

kib accepted this revision.Jul 17 2020, 9:22 PM
kib added inline comments.
sys/x86/iommu/intel_dmar.h
80

So what is the plan WRT intel_gas.c, which is probably the most useful MI part of the dmar driver ?

This revision is now accepted and ready to land.Jul 17 2020, 9:22 PM
Closed by commit rS363310: o Move iommu_test_boundary() to sys/iommu.h (authored by br). · Explain WhyJul 18 2020, 1:10 PM
This revision was automatically updated to reflect the committed changes.
br added a commit: rS363310: o Move iommu_test_boundary() to sys/iommu.h.
Herald added a subscriber: imp. · View Herald TranscriptJul 18 2020, 1:10 PM
br added inline comments.Jul 20 2020, 2:04 PM
sys/x86/iommu/intel_dmar.h
80

splitting-out GAS is my next step. Please look at this first:
https://reviews.freebsd.org/D25720

Revision Contents
Changeset List

PathSize
sys/
sys/
13 lines
x86/
iommu/
26 lines
11 lines
2 lines
9 lines
3 lines

Diff 74517

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sys/sys/iommu.h

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sys/x86/iommu/busdma_dmar.c

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sys/x86/iommu/intel_dmar.h

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sys/x86/iommu/intel_drv.c

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sys/x86/iommu/intel_gas.c

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sys/x86/iommu/intel_reg.h

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