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Merge tag 'libnvdimm-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdim...
[linux-2.6-microblaze.git]
/
Documentation
/
ABI
/
testing
/
sysfs-kernel-iommu_groups
diff --git
a/Documentation/ABI/testing/sysfs-kernel-iommu_groups
b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
index
eae2f1c
..
b15af6a
100644
(file)
--- a/
Documentation/ABI/testing/sysfs-kernel-iommu_groups
+++ b/
Documentation/ABI/testing/sysfs-kernel-iommu_groups
@@
-42,8
+42,12
@@
Description: /sys/kernel/iommu_groups/<grp_id>/type shows the type of default
======== ======================================================
DMA All the DMA transactions from the device in this group
are translated by the iommu.
======== ======================================================
DMA All the DMA transactions from the device in this group
are translated by the iommu.
+ DMA-FQ As above, but using batched invalidation to lazily
+ remove translations after use. This may offer reduced
+ overhead at the cost of reduced memory protection.
identity All the DMA transactions from the device in this group
identity All the DMA transactions from the device in this group
- are not translated by the iommu.
+ are not translated by the iommu. Maximum performance
+ but zero protection.
auto Change to the type the device was booted with.
======== ======================================================
auto Change to the type the device was booted with.
======== ======================================================