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authorLinus Torvalds <torvalds@linux-foundation.org>2016-10-11 12:52:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-11 12:52:41 -0700
commit56e520c7a0a490b63b042b047ec9659fc08762a4 (patch)
treeb20296f4b088d81aba3c41174d52afa209afff9b /include
parentd09ba13110e303d7baa29d170da94cd24f7662b2 (diff)
parent13a08259187c5cd3f63d98efa159ab42976d85a4 (diff)
Merge tag 'iommu-updates-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel: - support for interrupt virtualization in the AMD IOMMU driver. These patches were shared with the KVM tree and are already merged through that tree. - generic DT-binding support for the ARM-SMMU driver. With this the driver now makes use of the generic DMA-API code. This also required some changes outside of the IOMMU code, but these are acked by the respective maintainers. - more cleanups and fixes all over the place. * tag 'iommu-updates-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (40 commits) iommu/amd: No need to wait iommu completion if no dte irq entry change iommu/amd: Free domain id when free a domain of struct dma_ops_domain iommu/amd: Use standard bitmap operation to set bitmap iommu/amd: Clean up the cmpxchg64 invocation iommu/io-pgtable-arm: Check for v7s-incapable systems iommu/dma: Avoid PCI host bridge windows iommu/dma: Add support for mapping MSIs iommu/arm-smmu: Set domain geometry iommu/arm-smmu: Wire up generic configuration support Docs: dt: document ARM SMMU generic binding usage iommu/arm-smmu: Convert to iommu_fwspec iommu/arm-smmu: Intelligent SMR allocation iommu/arm-smmu: Add a stream map entry iterator iommu/arm-smmu: Streamline SMMU data lookups iommu/arm-smmu: Refactor mmu-masters handling iommu/arm-smmu: Keep track of S2CR state iommu/arm-smmu: Consolidate stream map entry state iommu/arm-smmu: Handle stream IDs more dynamically iommu/arm-smmu: Set PRIVCFG in stage 1 STEs iommu/arm-smmu: Support non-PCI devices with SMMUv3 ...
Diffstat (limited to 'include')
-rw-r--r--include/dt-bindings/memory/mt2701-larb-port.h2
-rw-r--r--include/linux/device.h3
-rw-r--r--include/linux/dma-iommu.h12
-rw-r--r--include/linux/iommu.h39
-rw-r--r--include/linux/of_pci.h10
5 files changed, 64 insertions, 2 deletions
diff --git a/include/dt-bindings/memory/mt2701-larb-port.h b/include/dt-bindings/memory/mt2701-larb-port.h
index 78f66786da91..6764d7447422 100644
--- a/include/dt-bindings/memory/mt2701-larb-port.h
+++ b/include/dt-bindings/memory/mt2701-larb-port.h
@@ -26,7 +26,7 @@
#define LARB0_PORT_OFFSET 0
#define LARB1_PORT_OFFSET 11
#define LARB2_PORT_OFFSET 21
-#define LARB3_PORT_OFFSET 43
+#define LARB3_PORT_OFFSET 44
#define MT2701_M4U_ID_LARB0(port) ((port) + LARB0_PORT_OFFSET)
#define MT2701_M4U_ID_LARB1(port) ((port) + LARB1_PORT_OFFSET)
diff --git a/include/linux/device.h b/include/linux/device.h
index 38f02814d53a..bc41e87a969b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -41,6 +41,7 @@ struct device_node;
struct fwnode_handle;
struct iommu_ops;
struct iommu_group;
+struct iommu_fwspec;
struct bus_attribute {
struct attribute attr;
@@ -765,6 +766,7 @@ struct device_dma_parameters {
* gone away. This should be set by the allocator of the
* device (i.e. the bus driver that discovered the device).
* @iommu_group: IOMMU group the device belongs to.
+ * @iommu_fwspec: IOMMU-specific properties supplied by firmware.
*
* @offline_disabled: If set, the device is permanently online.
* @offline: Set after successful invocation of bus type's .offline().
@@ -849,6 +851,7 @@ struct device {
void (*release)(struct device *dev);
struct iommu_group *iommu_group;
+ struct iommu_fwspec *iommu_fwspec;
bool offline_disabled:1;
bool offline:1;
diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
index 81c5c8d167ad..32c589062bd9 100644
--- a/include/linux/dma-iommu.h
+++ b/include/linux/dma-iommu.h
@@ -21,6 +21,7 @@
#ifdef CONFIG_IOMMU_DMA
#include <linux/iommu.h>
+#include <linux/msi.h>
int iommu_dma_init(void);
@@ -29,7 +30,8 @@ int iommu_get_dma_cookie(struct iommu_domain *domain);
void iommu_put_dma_cookie(struct iommu_domain *domain);
/* Setup call for arch DMA mapping code */
-int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base, u64 size);
+int iommu_dma_init_domain(struct iommu_domain *domain, dma_addr_t base,
+ u64 size, struct device *dev);
/* General helpers for DMA-API <-> IOMMU-API interaction */
int dma_direction_to_prot(enum dma_data_direction dir, bool coherent);
@@ -62,9 +64,13 @@ void iommu_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
int iommu_dma_supported(struct device *dev, u64 mask);
int iommu_dma_mapping_error(struct device *dev, dma_addr_t dma_addr);
+/* The DMA API isn't _quite_ the whole story, though... */
+void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg);
+
#else
struct iommu_domain;
+struct msi_msg;
static inline int iommu_dma_init(void)
{
@@ -80,6 +86,10 @@ static inline void iommu_put_dma_cookie(struct iommu_domain *domain)
{
}
+static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
+{
+}
+
#endif /* CONFIG_IOMMU_DMA */
#endif /* __KERNEL__ */
#endif /* __DMA_IOMMU_H */
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index a35fb8b42e1a..436dc21318af 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -331,10 +331,32 @@ extern struct iommu_group *pci_device_group(struct device *dev);
/* Generic device grouping function */
extern struct iommu_group *generic_device_group(struct device *dev);
+/**
+ * struct iommu_fwspec - per-device IOMMU instance data
+ * @ops: ops for this device's IOMMU
+ * @iommu_fwnode: firmware handle for this device's IOMMU
+ * @iommu_priv: IOMMU driver private data for this device
+ * @num_ids: number of associated device IDs
+ * @ids: IDs which this device may present to the IOMMU
+ */
+struct iommu_fwspec {
+ const struct iommu_ops *ops;
+ struct fwnode_handle *iommu_fwnode;
+ void *iommu_priv;
+ unsigned int num_ids;
+ u32 ids[1];
+};
+
+int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode,
+ const struct iommu_ops *ops);
+void iommu_fwspec_free(struct device *dev);
+int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids);
+
#else /* CONFIG_IOMMU_API */
struct iommu_ops {};
struct iommu_group {};
+struct iommu_fwspec {};
static inline bool iommu_present(struct bus_type *bus)
{
@@ -541,6 +563,23 @@ static inline void iommu_device_unlink(struct device *dev, struct device *link)
{
}
+static inline int iommu_fwspec_init(struct device *dev,
+ struct fwnode_handle *iommu_fwnode,
+ const struct iommu_ops *ops)
+{
+ return -ENODEV;
+}
+
+static inline void iommu_fwspec_free(struct device *dev)
+{
+}
+
+static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids,
+ int num_ids)
+{
+ return -ENODEV;
+}
+
#endif /* CONFIG_IOMMU_API */
#endif /* __LINUX_IOMMU_H */
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index b969e9443962..7fd5cfce9140 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -17,6 +17,9 @@ int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
int of_get_pci_domain_nr(struct device_node *node);
void of_pci_check_probe_only(void);
+int of_pci_map_rid(struct device_node *np, u32 rid,
+ const char *map_name, const char *map_mask_name,
+ struct device_node **target, u32 *id_out);
#else
static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
{
@@ -52,6 +55,13 @@ of_get_pci_domain_nr(struct device_node *node)
return -1;
}
+static inline int of_pci_map_rid(struct device_node *np, u32 rid,
+ const char *map_name, const char *map_mask_name,
+ struct device_node **target, u32 *id_out)
+{
+ return -EINVAL;
+}
+
static inline void of_pci_check_probe_only(void) { }
#endif