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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-11 14:13:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-11 14:13:24 -0700
commit952ace797c17d06e50ad2a738babd27159b8d7cc (patch)
treed423ac0094dbed0f4421c6f7b7abab76bdcffe74 /include/linux/iommu.h
parent96f970feeb47003a8eba967f188bba4e75875c7a (diff)
parente46b3c0d011eab9933c183d5b47569db8e377281 (diff)
Merge tag 'iommu-updates-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel: - Remove of the dev->archdata.iommu (or similar) pointers from most architectures. Only Sparc is left, but this is private to Sparc as their drivers don't use the IOMMU-API. - ARM-SMMU updates from Will Deacon: - Support for SMMU-500 implementation in Marvell Armada-AP806 SoC - Support for SMMU-500 implementation in NVIDIA Tegra194 SoC - DT compatible string updates - Remove unused IOMMU_SYS_CACHE_ONLY flag - Move ARM-SMMU drivers into their own subdirectory - Intel VT-d updates from Lu Baolu: - Misc tweaks and fixes for vSVA - Report/response page request events - Cleanups - Move the Kconfig and Makefile bits for the AMD and Intel drivers into their respective subdirectory. - MT6779 IOMMU Support - Support for new chipsets in the Renesas IOMMU driver - Other misc cleanups and fixes (e.g. to improve compile test coverage) * tag 'iommu-updates-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (77 commits) iommu/amd: Move Kconfig and Makefile bits down into amd directory iommu/vt-d: Move Kconfig and Makefile bits down into intel directory iommu/arm-smmu: Move Arm SMMU drivers into their own subdirectory iommu/vt-d: Skip TE disabling on quirky gfx dedicated iommu iommu: Add gfp parameter to io_pgtable_ops->map() iommu: Mark __iommu_map_sg() as static iommu/vt-d: Rename intel-pasid.h to pasid.h iommu/vt-d: Add page response ops support iommu/vt-d: Report page request faults for guest SVA iommu/vt-d: Add a helper to get svm and sdev for pasid iommu/vt-d: Refactor device_to_iommu() helper iommu/vt-d: Disable multiple GPASID-dev bind iommu/vt-d: Warn on out-of-range invalidation address iommu/vt-d: Fix devTLB flush for vSVA iommu/vt-d: Handle non-page aligned address iommu/vt-d: Fix PASID devTLB invalidation iommu/vt-d: Remove global page support in devTLB flush iommu/vt-d: Enforce PASID devTLB field mask iommu: Make some functions static iommu/amd: Remove double zero check ...
Diffstat (limited to 'include/linux/iommu.h')
-rw-r--r--include/linux/iommu.h38
1 files changed, 16 insertions, 22 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 5f0b7859d2eb..fee209efb756 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -31,12 +31,6 @@
* if the IOMMU page table format is equivalent.
*/
#define IOMMU_PRIV (1 << 5)
-/*
- * Non-coherent masters can use this page protection flag to set cacheable
- * memory attributes for only a transparent outer level of cache, also known as
- * the last-level or system cache.
- */
-#define IOMMU_SYS_CACHE_ONLY (1 << 6)
struct iommu_ops;
struct iommu_group;
@@ -457,22 +451,6 @@ extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t io
extern void iommu_set_fault_handler(struct iommu_domain *domain,
iommu_fault_handler_t handler, void *token);
-/**
- * iommu_map_sgtable - Map the given buffer to the IOMMU domain
- * @domain: The IOMMU domain to perform the mapping
- * @iova: The start address to map the buffer
- * @sgt: The sg_table object describing the buffer
- * @prot: IOMMU protection bits
- *
- * Creates a mapping at @iova for the buffer described by a scatterlist
- * stored in the given sg_table object in the provided IOMMU domain.
- */
-static inline size_t iommu_map_sgtable(struct iommu_domain *domain,
- unsigned long iova, struct sg_table *sgt, int prot)
-{
- return iommu_map_sg(domain, iova, sgt->sgl, sgt->orig_nents, prot);
-}
-
extern void iommu_get_resv_regions(struct device *dev, struct list_head *list);
extern void iommu_put_resv_regions(struct device *dev, struct list_head *list);
extern void generic_iommu_put_resv_regions(struct device *dev,
@@ -1079,6 +1057,22 @@ static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev)
}
#endif /* CONFIG_IOMMU_API */
+/**
+ * iommu_map_sgtable - Map the given buffer to the IOMMU domain
+ * @domain: The IOMMU domain to perform the mapping
+ * @iova: The start address to map the buffer
+ * @sgt: The sg_table object describing the buffer
+ * @prot: IOMMU protection bits
+ *
+ * Creates a mapping at @iova for the buffer described by a scatterlist
+ * stored in the given sg_table object in the provided IOMMU domain.
+ */
+static inline size_t iommu_map_sgtable(struct iommu_domain *domain,
+ unsigned long iova, struct sg_table *sgt, int prot)
+{
+ return iommu_map_sg(domain, iova, sgt->sgl, sgt->orig_nents, prot);
+}
+
#ifdef CONFIG_IOMMU_DEBUGFS
extern struct dentry *iommu_debugfs_dir;
void iommu_debugfs_setup(void);