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The Linux kernel configuration item CONFIG_EXYNOS_IOMMU
:
( CONFIG_ARCH_EXYNOS || CONFIG_COMPILE_TEST ) && (! CONFIG_CPU_BIG_ENDIAN )
Support for the IOMMU (System MMU) of Samsung Exynos application processor family. This enables H/W multimedia accelerators to see non-linear physical memory chunks as linear memory in their address space.
If unsure, say N here.
Raw data from LKDDb:
lkddb of "" "" "samsung,exynos-sysmmu" : CONFIG_EXYNOS_IOMMU : drivers/iommu/exynos-iommu.c # in 5.1–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb of "" "" "samsung,exynos-sysmmu" : CONFIG_EXYNOS_IOMMU CONFIG_IOMMU_SUPPORT : drivers/iommu/exynos-iommu.c # in 3.16–3.19, 4.0–4.20, 5.0
lkddb platform "exynos-sysmmu" : CONFIG_EXYNOS_IOMMU : drivers/iommu/exynos-iommu.c # in 5.1–5.19, 6.0–6.11, 6.12-rc+HEAD
lkddb platform "exynos-sysmmu" : CONFIG_EXYNOS_IOMMU CONFIG_IOMMU_SUPPORT : drivers/iommu/exynos-iommu.c # in 3.5–3.19, 4.0–4.20, 5.0
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Automatically generated (in year 2024). See also LKDDb sources on GitLab