rknpu: take the MMU force-reset out of the domain-switch path (supersedes #388) - #390

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mafischer wants to merge 10 commits into

rockchip-linux:develop-6.1from

oRKLLM:rknpu-iommu-rework

Commits on Aug 28, 2026

rknpu: do not access NPU registers in the IRQ handler after power-off
mafischer
committed
3af228c
rknpu: signal a job's fence when it is torn down without completing
mafischer
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aedcff9
rknpu: clamp the IOMMU domain reference count at zero
mafischer
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f9d560f
rknpu: release the IOMMU domain reference exactly once per job
mafischer
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b3c37c1
rknpu: release the domain reference held by a job reaped on timeout
mafischer
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ccee542
iommu/rockchip: add an in-place domain switch and an MMU reprogram helper
mafischer
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4aa7c46
rknpu: resolve the live IOMMU domain from the driver's own state
mafischer
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1a253e6
rknpu: switch IOMMU domains without going through the IOMMU core
mafischer
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fe4671d
rknpu: reprogram the live IOMMU domain after a soft reset
mafischer
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51c2f16
rknpu: map dma-buf imports into the domain they will be used in
mafischer
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23a11ae