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| author | Jason Gunthorpe <[email protected]> | 2025-02-20 01:31:39 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <[email protected]> | 2025-02-21 14:48:38 +0000 |
| commit | 96093fe54f4864b07013cf61b847708233832841 (patch) | |
| tree | 0bbbaa13ac307a0a4c927b3f3e21c6c658d4a7df /tools/testing/selftests/net/lib/py/utils.py | |
| parent | iommu: Make iommu_dma_prepare_msi() into a generic operation (diff) | |
| download | kernel-96093fe54f4864b07013cf61b847708233832841.tar.gz kernel-96093fe54f4864b07013cf61b847708233832841.zip | |
irqchip: Have CONFIG_IRQ_MSI_IOMMU be selected by irqchips that need it
Currently, IRQ_MSI_IOMMU is selected if DMA_IOMMU is available to provide
an implementation for iommu_dma_prepare/compose_msi_msg(). However, it'll
make more sense for irqchips that call prepare/compose to select it, and
that will trigger all the additional code and data to be compiled into
the kernel.
If IRQ_MSI_IOMMU is selected with no IOMMU side implementation, then the
prepare/compose() will be NOP stubs.
If IRQ_MSI_IOMMU is not selected by an irqchip, then the related code on
the iommu side is compiled out.
Link: https://patch.msgid.link/r/a2620f67002c5cdf974e89ca3bf905f5c0817be6.1740014950.git.nicolinc@nvidia.com
Signed-off-by: Nicolin Chen <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
Diffstat (limited to 'tools/testing/selftests/net/lib/py/utils.py')
0 files changed, 0 insertions, 0 deletions