summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/iommu.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/include/asm/iommu.h')
-rw-r--r--arch/powerpc/include/asm/iommu.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index 2c1d50792944..d96142572e6d 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -64,6 +64,11 @@ struct iommu_table_ops {
long index,
unsigned long *hpa,
enum dma_data_direction *direction);
+ /* Real mode */
+ int (*exchange_rm)(struct iommu_table *tbl,
+ long index,
+ unsigned long *hpa,
+ enum dma_data_direction *direction);
#endif
void (*clear)(struct iommu_table *tbl,
long index, long npages);
@@ -114,6 +119,7 @@ struct iommu_table {
struct list_head it_group_list;/* List of iommu_table_group_link */
unsigned long *it_userspace; /* userspace view of the table */
struct iommu_table_ops *it_ops;
+ struct kref it_kref;
};
#define IOMMU_TABLE_USERSPACE_ENTRY(tbl, entry) \
@@ -146,8 +152,8 @@ static inline void *get_iommu_table_base(struct device *dev)
extern int dma_iommu_dma_supported(struct device *dev, u64 mask);
-/* Frees table for an individual device node */
-extern void iommu_free_table(struct iommu_table *tbl, const char *node_name);
+extern struct iommu_table *iommu_tce_table_get(struct iommu_table *tbl);
+extern int iommu_tce_table_put(struct iommu_table *tbl);
/* Initializes an iommu_table based in values set in the passed-in
* structure
@@ -208,6 +214,8 @@ extern void iommu_del_device(struct device *dev);
extern int __init tce_iommu_bus_notifier_init(void);
extern long iommu_tce_xchg(struct iommu_table *tbl, unsigned long entry,
unsigned long *hpa, enum dma_data_direction *direction);
+extern long iommu_tce_xchg_rm(struct iommu_table *tbl, unsigned long entry,
+ unsigned long *hpa, enum dma_data_direction *direction);
#else
static inline void iommu_register_group(struct iommu_table_group *table_group,
int pci_domain_number,