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-rw-r--r--include/linux/device.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 583a341e016..49ab53ce92d 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -371,6 +371,9 @@ struct device {
core doesn't touch it */
struct dev_pm_info power;
+#ifdef CONFIG_NUMA
+ int numa_node; /* NUMA node this device is close to */
+#endif
u64 *dma_mask; /* dma mask (if dma'able device) */
u64 coherent_dma_mask;/* Like dma_mask, but for
alloc_coherent mappings as
@@ -394,6 +397,25 @@ struct device {
void (*release)(struct device * dev);
};
+#ifdef CONFIG_NUMA
+static inline int dev_to_node(struct device *dev)
+{
+ return dev->numa_node;
+}
+static inline void set_dev_node(struct device *dev, int node)
+{
+ dev->numa_node = node;
+}
+#else
+static inline int dev_to_node(struct device *dev)
+{
+ return -1;
+}
+static inline void set_dev_node(struct device *dev, int node)
+{
+}
+#endif
+
static inline void *
dev_get_drvdata (struct device *dev)
{