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cache: add flush_range interface in cache_ops struct

Signed-off-by: TekkamanV <tekkamanv@starfivetech.com>
TekkamanV 2 éve
szülő
commit
ec56b4f5ea
2 módosított fájl, 32 hozzáadás és 0 törlés
  1. 11 0
      drivers/cache/cache-uclass.c
  2. 21 0
      include/cache.h

+ 11 - 0
drivers/cache/cache-uclass.c

@@ -39,6 +39,17 @@ int cache_disable(struct udevice *dev)
 	return ops->disable(dev);
 }
 
+
+int flush_range(struct udevice *dev, unsigned long start, unsigned long end)
+{
+	struct cache_ops *ops = cache_get_ops(dev);
+
+	if (!ops->flush_range)
+		return -ENOSYS;
+
+	return ops->flush_range(dev, start, end);
+}
+
 UCLASS_DRIVER(cache) = {
 	.id		= UCLASS_CACHE,
 	.name		= "cache",

+ 21 - 0
include/cache.h

@@ -40,6 +40,17 @@ struct cache_ops {
 	 * @return 0 if OK, -ve on error
 	 */
 	int (*disable)(struct udevice *dev);
+
+	/**
+	 * flush_range() - Flush cache in a range
+	 *
+	 * @dev:	Device to check (UCLASS_CACHE)
+	 * @start:	start address of the range
+	 * @end:	end address of the range
+	 * @return 0 if OK, -ve on error
+	 */
+	int (*flush_range)(struct udevice *dev,
+			   unsigned long start, unsigned long end);
 };
 
 #define cache_get_ops(dev)	((struct cache_ops *)(dev)->driver->ops)
@@ -68,4 +79,14 @@ int cache_enable(struct udevice *dev);
  * @return 0 if OK, -ve on error
  */
 int cache_disable(struct udevice *dev);
+
+/**
+ * flush_range() - Flush cache
+ *
+ * @dev:	Device to check (UCLASS_CACHE)
+ * @start:	start address of the range
+ * @end:	end address of the range
+ * @return 0 if OK, -ve on error
+ */
+int flush_range(struct udevice *dev, unsigned long start, unsigned long end);
 #endif