2 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index be86ae13893f..e13117cbd2f7 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -42,6 +42,9 @@ struct dma_map_ops {
         int (*mapping_error)(struct device *dev, dma_addr_t dma_addr);
         int (*dma_supported)(struct device *dev, u64 mask);
         int (*set_dma_mask)(struct device *dev, u64 mask);
+#ifdef ARCH_HAS_DMA_GET_REQUIRED_MASK
+        u64 (*get_required_mask)(struct device *dev);
+#endif
         int is_phys;
 };
 
diff --git a/include/linux/topology.h b/include/linux/topology.h
index fc839bfa7935..e26db031303b 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -201,6 +201,10 @@ int arch_update_cpu_topology(void);
         .balance_interval       = 64,                                   \
 }
 
+#ifndef SD_NODES_PER_DOMAIN
+#define SD_NODES_PER_DOMAIN 16
+#endif
+
 #ifdef CONFIG_SCHED_BOOK
 #ifndef SD_BOOK_INIT
 #error Please define an appropriate SD_BOOK_INIT in include/asm/topology.h!!!