Linus, please pull from
git://git.infradead.org/intel-iommu.git
This adds "Shared Virtual Memory" (aka PASID support) for the Intel
IOMMU. This allows devices to do DMA using process address space,
translated through the normal CPU page tables for the relevant mm.With corresponding support added to the i915 driver, this has been tested with the graphics device on Skylake. We don't have the required TLP support in our PCIe root ports for supporting discrete devices yet, so it's only integrated devices that can do it so far. Dan Carpenter (2): iommu/vt-d: shift wrapping bug in prq_event_thread() iommu/vt-d: fix a loop in prq_event_thread() David Woodhouse (20): iommu/vt-d: Use plain writeq() for dmar_writeq() where available iommu/vt-d: Fix ATSR handling for Root-Complex integrated endpoints iommu/vt-d: Introduce intel_iommu=pasid28, and pasid_enabled() macro iommu/vt-d: Add initial support for PASID tables iommu/vt-d: Always enable PASID/PRI PCI capabilities before ATS iommu/vt-d: Add basic SVM PASID support iommu/vt-d: Implement deferred invalidate for SVM iommu/vt-d: Generalise DMAR MSI setup to allow for page request events iommu/vt-d: Implement page request handling iommu/vt-d: Add callback to device driver on page faults iommu/vt-d: Implement SVM_FLAG_PRIVATE_PASID to allocate unique PASIDs iommu/vt-d: Implement SVM_FLAG_SUPERVISOR_MODE for kernel access iommu/vt-d: Fix NULL pointer dereference in page request error case iommu/vt-d: Fix address shifting in page request handler iommu/vt-d: Fix IOTLB flushing for global pages iommu/vt-d: Fix SVM IOTLB flush handling iommu/vt-d: Handle Caching Mode implementations of SVM iommu/vt-d: Clean up pasid_enabled() and ecs_enabled() dependencies iommu/vt-d: Expose struct svm_dev_ops without CONFIG_INTEL_IOMMU_SVM iommu/vt-d: Fix rwxp flags in SVM device fault callback Sudeep Dutt (1): iommu/vt-d: Use dev_err(..) in intel_svm_device_to_iommu(..) drivers/iommu/Kconfig | 10 +++ drivers/iommu/Makefile | 1 + drivers/iommu/dmar.c | 42 ++++++++--- drivers/iommu/intel-iommu.c | 303 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------ drivers/iommu/intel-svm.c | 602 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/dma_remapping.h | 8 ++ include/linux/intel-iommu.h | 139 ++++++++++++++++++++++++++++++---- include/linux/intel-svm.h | 121 ++++++++++++++++++++++++++++++ 8 files changed, 1152 insertions(+), 74 deletions(-) -- David Woodhouse Open Source Technology Centre [email protected] Intel Corporation
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