@@ -16,6 +16,10 @@
struct blkmap;
+/* Attributes of blkmap slice */
+#define BLKMAP_SLICE_LINEAR BIT(0)
+#define BLKMAP_SLICE_MEM BIT(1)
+
/**
* struct blkmap_slice - Region mapped to a blkmap
*
@@ -25,12 +29,14 @@ struct blkmap;
* @node: List node used to associate this slice with a blkmap
* @blknr: Start block number of the mapping
* @blkcnt: Number of blocks covered by this mapping
+ * @attr: Attributes of blkmap slice
*/
struct blkmap_slice {
struct list_head node;
lbaint_t blknr;
lbaint_t blkcnt;
+ uint attr;
/**
* @read: - Read from slice
@@ -169,6 +175,7 @@ int blkmap_map_linear(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
.slice = {
.blknr = blknr,
.blkcnt = blkcnt,
+ .attr = BLKMAP_SLICE_LINEAR,
.read = blkmap_linear_read,
.write = blkmap_linear_write,
@@ -248,6 +255,7 @@ int __blkmap_map_mem(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
.slice = {
.blknr = blknr,
.blkcnt = blkcnt,
+ .attr = BLKMAP_SLICE_MEM,
.read = blkmap_mem_read,
.write = blkmap_mem_write,
Add information about the type of blkmap slice as an attribute in the corresponding slice structure. Put information in the blkmap slice structure to identify if it is associated with a memory or linear mapped device. Which can then be used to take specific action based on the type of the blkmap slice. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> --- Changes since V4: * Use BIT() based macros instead of enum * Change the name of the field from type to attr as it would contain attributes other than the type of the slice drivers/block/blkmap.c | 8 ++++++++ 1 file changed, 8 insertions(+)