IOMMU_CAP_NOEXEC, /* IOMMU_NOEXEC flag */
};
-/*
- * Following constraints are specifc to FSL_PAMUV1:
- * -aperture must be power of 2, and naturally aligned
- * -number of windows must be power of 2, and address space size
- * of each window is determined by aperture size / # of windows
- * -the actual size of the mapped region of a window must be power
- * of 2 starting with 4KB and physical address must be naturally
- * aligned.
- * DOMAIN_ATTR_FSL_PAMUV1 corresponds to the above mentioned contraints.
- * The caller can invoke iommu_domain_get_attr to check if the underlying
- * iommu implementation supports these constraints.
- */
-
-enum iommu_attr {
- DOMAIN_ATTR_GEOMETRY,
- DOMAIN_ATTR_PAGING,
- DOMAIN_ATTR_WINDOWS,
- DOMAIN_ATTR_FSL_PAMU_STASH,
- DOMAIN_ATTR_FSL_PAMU_ENABLE,
- DOMAIN_ATTR_FSL_PAMUV1,
- DOMAIN_ATTR_NESTING, /* two stages of translation */
- DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
- DOMAIN_ATTR_IO_PGTABLE_CFG,
- DOMAIN_ATTR_MAX,
-};
-
/* These are the possible reserved region types */
enum iommu_resv_type {
/* Memory regions which must be mapped 1:1 at all times */
enum iommu_resv_type type;
};
-/* Per device IOMMU features */
+/**
+ * enum iommu_dev_features - Per device IOMMU features
+ * @IOMMU_DEV_FEAT_AUX: Auxiliary domain feature
+ * @IOMMU_DEV_FEAT_SVA: Shared Virtual Addresses
+ * @IOMMU_DEV_FEAT_IOPF: I/O Page Faults such as PRI or Stall. Generally
+ * enabling %IOMMU_DEV_FEAT_SVA requires
+ * %IOMMU_DEV_FEAT_IOPF, but some devices manage I/O Page
+ * Faults themselves instead of relying on the IOMMU. When
+ * supported, this feature must be enabled before and
+ * disabled after %IOMMU_DEV_FEAT_SVA.
+ *
+ * Device drivers query whether a feature is supported using
+ * iommu_dev_has_feature(), and enable it using iommu_dev_enable_feature().
+ */
enum iommu_dev_features {
- IOMMU_DEV_FEAT_AUX, /* Aux-domain feature */
- IOMMU_DEV_FEAT_SVA, /* Shared Virtual Addresses */
+ IOMMU_DEV_FEAT_AUX,
+ IOMMU_DEV_FEAT_SVA,
+ IOMMU_DEV_FEAT_IOPF,
};
#define IOMMU_PASID_INVALID (-1U)
* @probe_finalize: Do final setup work after the device is added to an IOMMU
* group and attached to the groups domain
* @device_group: find iommu group for a particular device
- * @domain_get_attr: Query domain attributes
- * @domain_set_attr: Change domain attributes
+ * @enable_nesting: Enable nesting
+ * @set_pgtable_quirks: Set io page table quirks (IO_PGTABLE_QUIRK_*)
* @get_resv_regions: Request list of reserved regions for a device
* @put_resv_regions: Free list of reserved regions for a device
* @apply_resv_region: Temporary helper call-back for iova reserved ranges
- * @domain_window_enable: Configure and enable a particular window for a domain
- * @domain_window_disable: Disable a particular window for a domain
* @of_xlate: add OF master IDs to iommu grouping
* @is_attach_deferred: Check if domain attach should be deferred from iommu
* driver init to device driver init (default no)
void (*release_device)(struct device *dev);
void (*probe_finalize)(struct device *dev);
struct iommu_group *(*device_group)(struct device *dev);
- int (*domain_get_attr)(struct iommu_domain *domain,
- enum iommu_attr attr, void *data);
- int (*domain_set_attr)(struct iommu_domain *domain,
- enum iommu_attr attr, void *data);
+ int (*enable_nesting)(struct iommu_domain *domain);
+ int (*set_pgtable_quirks)(struct iommu_domain *domain,
+ unsigned long quirks);
/* Request/Free a list of reserved regions for a device */
void (*get_resv_regions)(struct device *dev, struct list_head *list);
struct iommu_domain *domain,
struct iommu_resv_region *region);
- /* Window handling functions */
- int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
- phys_addr_t paddr, u64 size, int prot);
- void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
-
int (*of_xlate)(struct device *dev, struct of_phandle_args *args);
bool (*is_attach_deferred)(struct iommu_domain *domain, struct device *dev);
* struct dev_iommu - Collection of per-device IOMMU data
*
* @fault_param: IOMMU detected device fault reporting data
+ * @iopf_param: I/O Page Fault queue and data
* @fwspec: IOMMU fwspec data
* @iommu_dev: IOMMU device this device is linked to
* @priv: IOMMU Driver private data
struct dev_iommu {
struct mutex lock;
struct iommu_fault_param *fault_param;
+ struct iopf_device_param *iopf_param;
struct iommu_fwspec *fwspec;
struct iommu_device *iommu_dev;
void *priv;
extern int iommu_group_id(struct iommu_group *group);
extern struct iommu_domain *iommu_group_default_domain(struct iommu_group *);
-extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
- void *data);
-extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
- void *data);
+int iommu_enable_nesting(struct iommu_domain *domain);
+int iommu_set_pgtable_quirks(struct iommu_domain *domain,
+ unsigned long quirks);
-/* Window handling function prototypes */
-extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
- phys_addr_t offset, u64 size,
- int prot);
+void iommu_set_dma_strict(bool val);
+bool iommu_get_dma_strict(struct iommu_domain *domain);
extern int report_iommu_fault(struct iommu_domain *domain, struct device *dev,
unsigned long iova, int flags);
* 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_pasid_bits: number of PASID bits supported by this device
+ * @flags: IOMMU_FWSPEC_* flags
* @num_ids: number of associated device IDs
* @ids: IDs which this device may present to the IOMMU
*/
const struct iommu_ops *ops;
struct fwnode_handle *iommu_fwnode;
u32 flags;
- u32 num_pasid_bits;
unsigned int num_ids;
u32 ids[];
};
{
}
-static inline int iommu_domain_window_enable(struct iommu_domain *domain,
- u32 wnd_nr, phys_addr_t paddr,
- u64 size, int prot)
-{
- return -ENODEV;
-}
-
static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova)
{
return 0;
return -ENODEV;
}
-static inline int iommu_domain_get_attr(struct iommu_domain *domain,
- enum iommu_attr attr, void *data)
+static inline int iommu_set_pgtable_quirks(struct iommu_domain *domain,
+ unsigned long quirks)
{
- return -EINVAL;
-}
-
-static inline int iommu_domain_set_attr(struct iommu_domain *domain,
- enum iommu_attr attr, void *data)
-{
- return -EINVAL;
+ return 0;
}
static inline int iommu_device_register(struct iommu_device *iommu)
projects / linux-2.6-microblaze.git / blobdiff