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Diffstat (limited to 'arch/powerpc/include/asm/iommu.h')
-rw-r--r--arch/powerpc/include/asm/iommu.h33
1 files changed, 26 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h
index cbfe678e3dbe..c34656a8925e 100644
--- a/arch/powerpc/include/asm/iommu.h
+++ b/arch/powerpc/include/asm/iommu.h
@@ -76,6 +76,9 @@ struct iommu_table {
struct iommu_pool large_pool;
struct iommu_pool pools[IOMMU_NR_POOLS];
unsigned long *it_map; /* A simple allocation bitmap for now */
+#ifdef CONFIG_IOMMU_API
+ struct iommu_group *it_group;
+#endif
};
struct scatterlist;
@@ -98,6 +101,8 @@ extern void iommu_free_table(struct iommu_table *tbl, const char *node_name);
*/
extern struct iommu_table *iommu_init_table(struct iommu_table * tbl,
int nid);
+extern void iommu_register_group(struct iommu_table *tbl,
+ int pci_domain_number, unsigned long pe_num);
extern int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
struct scatterlist *sglist, int nelems,
@@ -125,13 +130,6 @@ extern void iommu_init_early_pSeries(void);
extern void iommu_init_early_dart(void);
extern void iommu_init_early_pasemi(void);
-#ifdef CONFIG_PCI
-extern void pci_iommu_init(void);
-extern void pci_direct_iommu_init(void);
-#else
-static inline void pci_iommu_init(void) { }
-#endif
-
extern void alloc_dart_table(void);
#if defined(CONFIG_PPC64) && defined(CONFIG_PM)
static inline void iommu_save(void)
@@ -147,5 +145,26 @@ static inline void iommu_restore(void)
}
#endif
+/* The API to support IOMMU operations for VFIO */
+extern int iommu_tce_clear_param_check(struct iommu_table *tbl,
+ unsigned long ioba, unsigned long tce_value,
+ unsigned long npages);
+extern int iommu_tce_put_param_check(struct iommu_table *tbl,
+ unsigned long ioba, unsigned long tce);
+extern int iommu_tce_build(struct iommu_table *tbl, unsigned long entry,
+ unsigned long hwaddr, enum dma_data_direction direction);
+extern unsigned long iommu_clear_tce(struct iommu_table *tbl,
+ unsigned long entry);
+extern int iommu_clear_tces_and_put_pages(struct iommu_table *tbl,
+ unsigned long entry, unsigned long pages);
+extern int iommu_put_tce_user_mode(struct iommu_table *tbl,
+ unsigned long entry, unsigned long tce);
+
+extern void iommu_flush_tce(struct iommu_table *tbl);
+extern int iommu_take_ownership(struct iommu_table *tbl);
+extern void iommu_release_ownership(struct iommu_table *tbl);
+
+extern enum dma_data_direction iommu_tce_direction(unsigned long tce);
+
#endif /* __KERNEL__ */
#endif /* _ASM_IOMMU_H */