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author | Thierry Reding <treding@nvidia.com> | 2023-01-20 20:42:50 +0300 |
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committer | Joerg Roedel <jroedel@suse.de> | 2023-01-25 13:48:28 +0300 |
commit | a5bf3cfce8cb77d9d24613ab52d520896f83dd48 (patch) | |
tree | 538a32161b122b9d8dbf23704c57599c505307da /drivers/iommu/dma-iommu.c | |
parent | af0d81357cc558ff40968b4e04131e08ae540127 (diff) | |
download | linux-a5bf3cfce8cb77d9d24613ab52d520896f83dd48.tar.xz |
iommu: Implement of_iommu_get_resv_regions()
This is an implementation that IOMMU drivers can use to obtain reserved
memory regions from a device tree node. It uses the reserved-memory DT
bindings to find the regions associated with a given device. If these
regions are marked accordingly, identity mappings will be created for
them in the IOMMU domain that the devices will be attached to.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20230120174251.4004100-4-thierry.reding@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/dma-iommu.c')
0 files changed, 0 insertions, 0 deletions