Merge branch 'devel-stable' into for-next

3 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index d1d1c055b48e..460ebad15109 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -685,6 +685,7 @@ struct acpi_dev_node {
  * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all
  *              hardware supports 64-bit addresses for consistent allocations
  *              such descriptors.
+ * @dma_pfn_offset: offset of DMA memory range relatively of RAM
  * @dma_parms:  A low level driver may set these to teach IOMMU code about
  *              segment limitations.
  * @dma_pools:  Dma pools (if dma'ble device).
@@ -750,6 +751,7 @@ struct device {
                                              not all hardware supports
                                              64 bit addresses for consistent
                                              allocations such descriptors. */
+        unsigned long   dma_pfn_offset;
 
         struct device_dma_parameters *dma_parms;
 
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index fd4aee29ad10..c7d9b1b14ce7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -123,6 +123,13 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
 
 extern u64 dma_get_required_mask(struct device *dev);
 
+#ifndef set_arch_dma_coherent_ops
+static inline int set_arch_dma_coherent_ops(struct device *dev)
+{
+        return 0;
+}
+#endif
+
 static inline unsigned int dma_get_max_seg_size(struct device *dev)
 {
         return dev->dma_parms ? dev->dma_parms->max_segment_size : 65536;
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 5f6ed6b182b8..839a3521b28e 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -63,6 +63,9 @@ extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
 extern struct of_pci_range *of_pci_range_parser_one(
                                         struct of_pci_range_parser *parser,
                                         struct of_pci_range *range);
+extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
+                                u64 *paddr, u64 *size);
+extern bool of_dma_is_coherent(struct device_node *np);
 #else /* CONFIG_OF_ADDRESS */
 static inline struct device_node *of_find_matching_node_by_address(
                                         struct device_node *from,
@@ -90,6 +93,17 @@ static inline struct of_pci_range *of_pci_range_parser_one(
 {
         return NULL;
 }
+
+static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
+                                u64 *paddr, u64 *size)
+{
+        return -ENODEV;
+}
+
+static inline bool of_dma_is_coherent(struct device_node *np)
+{
+        return false;
+}
 #endif /* CONFIG_OF_ADDRESS */
 
 #ifdef CONFIG_OF