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Diffstat (limited to 'drivers/iommu/io-pgtable.h')
-rw-r--r--drivers/iommu/io-pgtable.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index 10e32f69c..ac9e2341a 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -17,8 +17,9 @@ enum io_pgtable_fmt {
*
* @tlb_flush_all: Synchronously invalidate the entire TLB context.
* @tlb_add_flush: Queue up a TLB invalidation for a virtual address range.
- * @tlb_sync: Ensure any queue TLB invalidation has taken effect.
- * @flush_pgtable: Ensure page table updates are visible to the IOMMU.
+ * @tlb_sync: Ensure any queued TLB invalidation has taken effect, and
+ * any corresponding page table updates are visible to the
+ * IOMMU.
*
* Note that these can all be called in atomic context and must therefore
* not block.
@@ -28,7 +29,6 @@ struct iommu_gather_ops {
void (*tlb_add_flush)(unsigned long iova, size_t size, bool leaf,
void *cookie);
void (*tlb_sync)(void *cookie);
- void (*flush_pgtable)(void *ptr, size_t size, void *cookie);
};
/**
@@ -41,6 +41,8 @@ struct iommu_gather_ops {
* @ias: Input address (iova) size, in bits.
* @oas: Output address (paddr) size, in bits.
* @tlb: TLB management callbacks for this set of tables.
+ * @iommu_dev: The device representing the DMA configuration for the
+ * page table walker.
*/
struct io_pgtable_cfg {
#define IO_PGTABLE_QUIRK_ARM_NS (1 << 0) /* Set NS bit in PTEs */
@@ -49,6 +51,7 @@ struct io_pgtable_cfg {
unsigned int ias;
unsigned int oas;
const struct iommu_gather_ops *tlb;
+ struct device *iommu_dev;
/* Low-level data specific to the table format */
union {
@@ -140,4 +143,9 @@ struct io_pgtable_init_fns {
void (*free)(struct io_pgtable *iop);
};
+extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s1_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s2_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s1_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s2_init_fns;
+
#endif /* __IO_PGTABLE_H */