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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-07-30 14:30:45 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-07-30 14:30:45 +1000 |
| commit | 509f79af220cd4d169bb061dad0ed97997087cc0 (patch) | |
| tree | 7ef445fa16423ef38bb8c7f8bbbb3d9382aba453 /Documentation | |
| parent | eb3687b237054ee4f5810e75fbf53ce37b56a907 (diff) | |
| parent | e2045c68c4b6f5e7141d4be0a45d2790aafa7fe7 (diff) | |
Merge remote-tracking branch 'iommu/next'
Diffstat (limited to 'Documentation')
4 files changed, 63 insertions, 6 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-iommu b/Documentation/ABI/testing/sysfs-class-iommu new file mode 100644 index 000000000000..6d0a1b4be82d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-iommu @@ -0,0 +1,17 @@ +What: /sys/class/iommu/<iommu>/devices/ +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + IOMMU drivers are able to link devices managed by a + given IOMMU here to allow association of IOMMU to + device. + +What: /sys/devices/.../iommu +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + IOMMU drivers are able to link the IOMMU for a + given device here to allow association of device to + IOMMU. diff --git a/Documentation/ABI/testing/sysfs-class-iommu-amd-iommu b/Documentation/ABI/testing/sysfs-class-iommu-amd-iommu new file mode 100644 index 000000000000..d6ba8e8a4a97 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-iommu-amd-iommu @@ -0,0 +1,14 @@ +What: /sys/class/iommu/<iommu>/amd-iommu/cap +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + IOMMU capability header as documented in the AMD IOMMU + specification. Format: %x + +What: /sys/class/iommu/<iommu>/amd-iommu/features +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + Extended features of the IOMMU. Format: %llx diff --git a/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu b/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu new file mode 100644 index 000000000000..258cc246d98e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu @@ -0,0 +1,32 @@ +What: /sys/class/iommu/<iommu>/intel-iommu/address +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + Physical address of the VT-d DRHD for this IOMMU. + Format: %llx. This allows association of a sysfs + intel-iommu with a DMAR DRHD table entry. + +What: /sys/class/iommu/<iommu>/intel-iommu/cap +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + The cached hardware capability register value + of this DRHD unit. Format: %llx. + +What: /sys/class/iommu/<iommu>/intel-iommu/ecap +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + The cached hardware extended capability register + value of this DRHD unit. Format: %llx. + +What: /sys/class/iommu/<iommu>/intel-iommu/version +Date: June 2014 +KernelVersion: 3.17 +Contact: Alex Williamson <alex.williamson@redhat.com> +Description: + The architecture version as reported from the + VT-d VER_REG. Format: %d:%d, major:minor diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt index f284b99402bc..2d0f7cd867ea 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt @@ -42,12 +42,6 @@ conditions. ** System MMU optional properties: -- smmu-parent : When multiple SMMUs are chained together, this - property can be used to provide a phandle to the - parent SMMU (that is the next SMMU on the path going - from the mmu-masters towards memory) node for this - SMMU. - - calxeda,smmu-secure-config-access : Enable proper handling of buggy implementations that always use secure access to SMMU configuration registers. In this case non-secure |