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authorLinus Torvalds2018-04-11 18:50:41 -0700
committerLinus Torvalds2018-04-11 18:50:41 -0700
commite5c372280b9cc1057647b4307757b7885a732a7e (patch)
treefa063d378da4ac144e740a5b145de0e9dfa1b66b /include/linux
parent1fe43114ea7355ec9f336c942aaf3e74d27483a0 (diff)
parentd4f96fd5c249defda290299f9646287dd3df0803 (diff)
Merge tag 'iommu-updates-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel: - OF_IOMMU support for the Rockchip iommu driver so that it can use generic DT bindings - rework of locking in the AMD IOMMU interrupt remapping code to make it work better in RT kernels - support for improved iotlb flushing in the AMD IOMMU driver - support for 52-bit physical and virtual addressing in the ARM-SMMU - various other small fixes and cleanups * tag 'iommu-updates-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (53 commits) iommu/io-pgtable-arm: Avoid warning with 32-bit phys_addr_t iommu/rockchip: Support sharing IOMMU between masters iommu/rockchip: Add runtime PM support iommu/rockchip: Fix error handling in init iommu/rockchip: Use OF_IOMMU to attach devices automatically iommu/rockchip: Use IOMMU device for dma mapping operations dt-bindings: iommu/rockchip: Add clock property iommu/rockchip: Control clocks needed to access the IOMMU iommu/rockchip: Fix TLB flush of secondary IOMMUs iommu/rockchip: Use iopoll helpers to wait for hardware iommu/rockchip: Fix error handling in attach iommu/rockchip: Request irqs in rk_iommu_probe() iommu/rockchip: Fix error handling in probe iommu/rockchip: Prohibit unbind and remove iommu/amd: Return proper error code in irq_remapping_alloc() iommu/amd: Make amd_iommu_devtable_lock a spin_lock iommu/amd: Drop the lock while allocating new irq remap table iommu/amd: Factor out setting the remap table for a devid iommu/amd: Use `table' instead `irt' as variable name in amd_iommu_update_ga() iommu/amd: Remove the special case from alloc_irq_table() ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/acpi_iort.h7
-rw-r--r--include/linux/intel-iommu.h12
-rw-r--r--include/linux/iommu.h14
3 files changed, 19 insertions, 14 deletions
diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h
index 2f7a29242b87..38cd77b39a64 100644
--- a/include/linux/acpi_iort.h
+++ b/include/linux/acpi_iort.h
@@ -26,7 +26,8 @@
#define IORT_IRQ_MASK(irq) (irq & 0xffffffffULL)
#define IORT_IRQ_TRIGGER_MASK(irq) ((irq >> 32) & 0xffffffffULL)
-int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node);
+int iort_register_domain_token(int trans_id, phys_addr_t base,
+ struct fwnode_handle *fw_node);
void iort_deregister_domain_token(int trans_id);
struct fwnode_handle *iort_find_domain_token(int trans_id);
#ifdef CONFIG_ACPI_IORT
@@ -38,6 +39,7 @@ int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
/* IOMMU interface */
void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *size);
const struct iommu_ops *iort_iommu_configure(struct device *dev);
+int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head);
#else
static inline void acpi_iort_init(void) { }
static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id)
@@ -52,6 +54,9 @@ static inline void iort_dma_setup(struct device *dev, u64 *dma_addr,
static inline const struct iommu_ops *iort_iommu_configure(
struct device *dev)
{ return NULL; }
+static inline
+int iort_iommu_msi_get_resv_regions(struct device *dev, struct list_head *head)
+{ return 0; }
#endif
#endif /* __ACPI_IORT_H__ */
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 8dad3dd26eae..ef169d67df92 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -209,12 +209,12 @@
#define DMA_FECTL_IM (((u32)1) << 31)
/* FSTS_REG */
-#define DMA_FSTS_PPF ((u32)2)
-#define DMA_FSTS_PFO ((u32)1)
-#define DMA_FSTS_IQE (1 << 4)
-#define DMA_FSTS_ICE (1 << 5)
-#define DMA_FSTS_ITE (1 << 6)
-#define DMA_FSTS_PRO (1 << 7)
+#define DMA_FSTS_PFO (1 << 0) /* Primary Fault Overflow */
+#define DMA_FSTS_PPF (1 << 1) /* Primary Pending Fault */
+#define DMA_FSTS_IQE (1 << 4) /* Invalidation Queue Error */
+#define DMA_FSTS_ICE (1 << 5) /* Invalidation Completion Error */
+#define DMA_FSTS_ITE (1 << 6) /* Invalidation Time-out Error */
+#define DMA_FSTS_PRO (1 << 7) /* Page Request Overflow */
#define dma_fsts_fault_record_index(s) (((s) >> 8) & 0xff)
/* FRCD_REG, 32 bits access */
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 41b8c5757859..19938ee6eb31 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -465,23 +465,23 @@ static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
return -ENODEV;
}
-static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
- size_t size)
+static inline size_t iommu_unmap(struct iommu_domain *domain,
+ unsigned long iova, size_t size)
{
- return -ENODEV;
+ return 0;
}
-static inline int iommu_unmap_fast(struct iommu_domain *domain, unsigned long iova,
- int gfp_order)
+static inline size_t iommu_unmap_fast(struct iommu_domain *domain,
+ unsigned long iova, int gfp_order)
{
- return -ENODEV;
+ return 0;
}
static inline size_t iommu_map_sg(struct iommu_domain *domain,
unsigned long iova, struct scatterlist *sg,
unsigned int nents, int prot)
{
- return -ENODEV;
+ return 0;
}
static inline void iommu_flush_tlb_all(struct iommu_domain *domain)