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Merge tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Browse Source 
Pull iommu updates from Joerg Roedel:

 - ARM-SMMU Updates from Will:

      - Continued SVM enablement, where page-table is shared with CPU

      - Groundwork to support integrated SMMU with Adreno GPU

      - Allow disabling of MSI-based polling on the kernel command-line

      - Minor driver fixes and cleanups (octal permissions, error
        messages, ...)

 - Secure Nested Paging Support for AMD IOMMU. The IOMMU will fault when
   a device tries DMA on memory owned by a guest. This needs new
   fault-types as well as a rewrite of the IOMMU memory semaphore for
   command completions.

 - Allow broken Intel IOMMUs (wrong address widths reported) to still be
   used for interrupt remapping.

 - IOMMU UAPI updates for supporting vSVA, where the IOMMU can access
   address spaces of processes running in a VM.

 - Support for the MT8167 IOMMU in the Mediatek IOMMU driver.

 - Device-tree updates for the Renesas driver to support r8a7742.

 - Several smaller fixes and cleanups all over the place.

* tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (57 commits)
  iommu/vt-d: Gracefully handle DMAR units with no supported address widths
  iommu/vt-d: Check UAPI data processed by IOMMU core
  iommu/uapi: Handle data and argsz filled by users
  iommu/uapi: Rename uapi functions
  iommu/uapi: Use named union for user data
  iommu/uapi: Add argsz for user filled data
  docs: IOMMU user API
  iommu/qcom: add missing put_device() call in qcom_iommu_of_xlate()
  iommu/arm-smmu-v3: Add SVA device feature
  iommu/arm-smmu-v3: Check for SVA features
  iommu/arm-smmu-v3: Seize private ASID
  iommu/arm-smmu-v3: Share process page tables
  iommu/arm-smmu-v3: Move definitions to a header
  iommu/io-pgtable-arm: Move some definitions to a header
  iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer
  iommu/amd: Re-purpose Exclusion range registers to support SNP CWWB
  iommu/amd: Add support for RMP_PAGE_FAULT and RMP_HW_ERR
  iommu/amd: Use 4K page for completion wait write-back semaphore
  iommu/tegra-smmu: Allow to group clients in same swgroup
  iommu/tegra-smmu: Fix iova->phys translation
  ...
This commit is contained in:
Linus Torvalds
2020-10-14 12:08:34 -07:00
parent 79db2b74aa 7e3c3883c3
commit 531d29b0b6
42 changed files with 2260 additions and 933 deletions
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45
include/linux/iommu.h
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@@ -424,13 +424,16 @@ extern int iommu_attach_device(struct iommu_domain *domain,
struct device *dev);
extern void iommu_detach_device(struct iommu_domain *domain,
struct device *dev);
extern int iommu_cache_invalidate(struct iommu_domain *domain,
struct device *dev,
struct iommu_cache_invalidate_info *inv_info);
extern int iommu_sva_bind_gpasid(struct iommu_domain *domain,
struct device *dev, struct iommu_gpasid_bind_data *data);
extern int iommu_uapi_cache_invalidate(struct iommu_domain *domain,
struct device *dev,
void __user *uinfo);
extern int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain,
struct device *dev, void __user *udata);
extern int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain,
struct device *dev, void __user *udata);
extern int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
struct device *dev, ioasid_t pasid);
struct device *dev, ioasid_t pasid);
extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev);
extern struct iommu_domain *iommu_get_dma_domain(struct device *dev);
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
@@ -514,13 +517,13 @@ extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr)
extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
unsigned long iova, int flags);
static inline void iommu_flush_tlb_all(struct iommu_domain *domain)
static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)
{
if (domain->ops->flush_iotlb_all)
domain->ops->flush_iotlb_all(domain);
}
static inline void iommu_tlb_sync(struct iommu_domain *domain,
static inline void iommu_iotlb_sync(struct iommu_domain *domain,
struct iommu_iotlb_gather *iotlb_gather)
{
if (domain->ops->iotlb_sync)
@@ -543,7 +546,7 @@ static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,
if (gather->pgsize != size ||
end < gather->start || start > gather->end) {
if (gather->pgsize)
iommu_tlb_sync(domain, gather);
iommu_iotlb_sync(domain, gather);
gather->pgsize = size;
}
@@ -725,11 +728,11 @@ static inline size_t iommu_map_sg_atomic(struct iommu_domain *domain,
return 0;
}
static inline void iommu_flush_tlb_all(struct iommu_domain *domain)
static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)
{
}
static inline void iommu_tlb_sync(struct iommu_domain *domain,
static inline void iommu_iotlb_sync(struct iommu_domain *domain,
struct iommu_iotlb_gather *iotlb_gather)
{
}
@@ -1033,20 +1036,28 @@ static inline u32 iommu_sva_get_pasid(struct iommu_sva *handle)
}
static inline int
iommu_cache_invalidate(struct iommu_domain *domain,
struct device *dev,
struct iommu_cache_invalidate_info *inv_info)
iommu_uapi_cache_invalidate(struct iommu_domain *domain,
struct device *dev,
struct iommu_cache_invalidate_info *inv_info)
{
return -ENODEV;
}
static inline int iommu_sva_bind_gpasid(struct iommu_domain *domain,
struct device *dev, struct iommu_gpasid_bind_data *data)
static inline int iommu_uapi_sva_bind_gpasid(struct iommu_domain *domain,
struct device *dev, void __user *udata)
{
return -ENODEV;
}
static inline int iommu_uapi_sva_unbind_gpasid(struct iommu_domain *domain,
struct device *dev, void __user *udata)
{
return -ENODEV;
}
static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain,
struct device *dev, u32 pasid)
struct device *dev,
ioasid_t pasid)
{
return -ENODEV;
}