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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-14 12:08:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-14 12:08:34 -0700 |
| commit | 531d29b0b674036347a04c08c0898ff1aa522180 (patch) | |
| tree | 26b25c969544e8c0d9ea9c20a69639e98f2ad089 /arch/arm64 | |
| parent | 79db2b74aa146384dc8a962495f43941e5a91ee6 (diff) | |
| parent | 7e3c3883c381aeda903778d7e99fc4cd523be610 (diff) | |
Merge tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
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
...
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/barrier.h | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/io.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index fb4c27506ef4..c3009b0e5239 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -45,6 +45,7 @@ #define rmb() dsb(ld) #define wmb() dsb(st) +#define dma_mb() dmb(osh) #define dma_rmb() dmb(oshld) #define dma_wmb() dmb(oshst) diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index ff50dd731852..fd172c41df90 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -110,6 +110,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) #define __io_par(v) __iormb(v) #define __iowmb() dma_wmb() +#define __iomb() dma_mb() /* * Relaxed I/O memory access primitives. These follow the Device memory |