On Mon, 9 Dec 2019 19:05:01 +0100
Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> wrote:
> Add support for Substream ID and PASIDs to the SMMUv3 driver.
> Changes since v2 [1]:
>
> * Split preparatory work into patches 5, 6, 8 and 9.
>
> * Added patch 1. Not strictly relevant, but since we're moving the DMA
> allocations and adding a new one, we might as well clean the flags
> first.
>
> * Fixed a double free reported by Jonathan, and other small
> issues.
>
> * Added patch 12. Upstream commit c6e9aefbf9db ("PCI/ATS: Remove unused
> PRI and PASID stubs") removed the unused PASID stubs. Since the SMMU
> driver can be built without PCI, the stubs are now needed.
>
> [1] https://lore.kernel.org/linux-iommu/20191108152508.4039168-1-jean-philippe@xxxxxxxxxx/
Hi Jean-Philippe,
Series looks great to me. FWIW
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
for the patches I didn't comment on in this version as I couldn't find anything
to comment about ;)
Thanks
Jonathan
>
> Jean-Philippe Brucker (13):
> iommu/arm-smmu-v3: Drop __GFP_ZERO flag from DMA allocation
> dt-bindings: document PASID property for IOMMU masters
> iommu/arm-smmu-v3: Support platform SSID
> ACPI/IORT: Support PASID for platform devices
> iommu/arm-smmu-v3: Prepare arm_smmu_s1_cfg for SSID support
> iommu/arm-smmu-v3: Add context descriptor tables allocators
> iommu/arm-smmu-v3: Add support for Substream IDs
> iommu/arm-smmu-v3: Propate ssid_bits
> iommu/arm-smmu-v3: Handle failure of arm_smmu_write_ctx_desc()
> iommu/arm-smmu-v3: Add second level of context descriptor table
> iommu/arm-smmu-v3: Improve add_device() error handling
> PCI/ATS: Add PASID stubs
> iommu/arm-smmu-v3: Add support for PCI PASID
>
> .../devicetree/bindings/iommu/iommu.txt | 6 +
> drivers/acpi/arm64/iort.c | 18 +
> drivers/iommu/arm-smmu-v3.c | 462 +++++++++++++++---
> drivers/iommu/of_iommu.c | 6 +-
> include/linux/iommu.h | 2 +
> include/linux/pci-ats.h | 3 +
> 6 files changed, 437 insertions(+), 60 deletions(-)
>
