habanalabs: return block size + block ID

When user gives us a block address to get its ID to mmap it, he also
needs to get from us the block size to pass to the driver in the mmap
function.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

1 files changed, 21 insertions, 6 deletions

diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 64ae83b5f8e5..5a86b521a450 100644
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -782,10 +782,10 @@ struct hl_mem_in {
 		/* HL_MEM_OP_MAP_BLOCK - map a hw block */
 		struct {
 			/*
-			 * HW block address to map, a handle will be returned
-			 * to the user and will be used to mmap the relevant
-			 * block. Only addresses from configuration space are
-			 * allowed.
+			 * HW block address to map, a handle and size will be
+			 * returned to the user and will be used to mmap the
+			 * relevant block. Only addresses from configuration
+			 * space are allowed.
 			 */
 			__u64 block_addr;
 		} map_block;
@@ -816,11 +816,26 @@ struct hl_mem_out {
 		__u64 device_virt_addr;
 
 		/*
-		 * Used for HL_MEM_OP_ALLOC and HL_MEM_OP_MAP_BLOCK.
+		 * Used in HL_MEM_OP_ALLOC
 		 * This is the assigned handle for the allocated memory
-		 * or mapped block
 		 */
 		__u64 handle;
+
+		struct {
+			/*
+			 * Used in HL_MEM_OP_MAP_BLOCK.
+			 * This is the assigned handle for the mapped block
+			 */
+			__u64 block_handle;
+
+			/*
+			 * Used in HL_MEM_OP_MAP_BLOCK
+			 * This is the size of the mapped block
+			 */
+			__u32 block_size;
+
+			__u32 pad;
+		};
 	};
 };