diff --git a/example/ck_tile/01_fmha/CMakeLists.txt b/example/ck_tile/01_fmha/CMakeLists.txt
index e324f85ed8..4e8d7732d5 100644
--- a/example/ck_tile/01_fmha/CMakeLists.txt
+++ b/example/ck_tile/01_fmha/CMakeLists.txt
@@ -1,12 +1,12 @@
 # generate a list of kernels, but not actually emit files at config stage
 execute_process(
   COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate.py
-  --direction fwd --list_blobs ${CMAKE_CURRENT_BINARY_DIR}/fwd_blob_list.txt
+  --apis fwd --list_blobs ${CMAKE_CURRENT_BINARY_DIR}/fwd_blob_list.txt
 )
 
 execute_process(
   COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate.py
-  --direction bwd --list_blobs ${CMAKE_CURRENT_BINARY_DIR}/bwd_blob_list.txt
+  --apis bwd --list_blobs ${CMAKE_CURRENT_BINARY_DIR}/bwd_blob_list.txt
 )
 
 # NOTE: for cmake, the FMHA_FWD_GEN_BLOBS/FMHA_BWD_GEN_BLOBS files must be in the same directory
@@ -17,13 +17,13 @@ file(STRINGS ${CMAKE_CURRENT_BINARY_DIR}/bwd_blob_list.txt FMHA_BWD_GEN_BLOBS)
 add_custom_command(
   OUTPUT ${FMHA_FWD_GEN_BLOBS}
   COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate.py
-  --direction fwd --output_dir ${CMAKE_CURRENT_BINARY_DIR}
+  --apis fwd --output_dir ${CMAKE_CURRENT_BINARY_DIR}
 )
 
 add_custom_command(
   OUTPUT ${FMHA_BWD_GEN_BLOBS}
   COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_LIST_DIR}/generate.py
-  --direction bwd --output_dir ${CMAKE_CURRENT_BINARY_DIR}
+  --apis bwd --output_dir ${CMAKE_CURRENT_BINARY_DIR}
 )
 
 set(EXAMPLE_FMHA_FWD "tile_example_fmha_fwd")
diff --git a/example/ck_tile/01_fmha/codegen/cmake_config.py b/example/ck_tile/01_fmha/codegen/cmake_config.py
index f6943ceda6..03ebfd6702 100644
--- a/example/ck_tile/01_fmha/codegen/cmake_config.py
+++ b/example/ck_tile/01_fmha/codegen/cmake_config.py
@@ -1 +1,5 @@
+# SPDX-License-Identifier: MIT
+# Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
+# generate kernel instances to speed up compilation
+
 GEN_DIR = ""    # in Cmake, have to generate files in same folder
\ No newline at end of file
diff --git a/example/ck_tile/01_fmha/codegen/cpp_symbol_map.py b/example/ck_tile/01_fmha/codegen/cpp_symbol_map.py
index 0ea4e74f55..d3d215f7f5 100644
--- a/example/ck_tile/01_fmha/codegen/cpp_symbol_map.py
+++ b/example/ck_tile/01_fmha/codegen/cpp_symbol_map.py
@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: MIT
+# Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
+# generate kernel instances to speed up compilation
+
 DTYPE_MAP = {
     "fp16": "ck_tile::fp16_t",
     "bf16": "ck_tile::bf16_t",
diff --git a/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py b/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py
index bdd4aa17f3..0160915a54 100644
--- a/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py
+++ b/example/ck_tile/01_fmha/codegen/ops/fmha_bwd.py
@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: MIT
+# Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
+# generate kernel instances to speed up compilation
+
 import copy
 from dataclasses import dataclass
 import fnmatch
diff --git a/example/ck_tile/01_fmha/codegen/ops/fmha_fwd.py b/example/ck_tile/01_fmha/codegen/ops/fmha_fwd.py
index 781e06e95b..1486671f6b 100644
--- a/example/ck_tile/01_fmha/codegen/ops/fmha_fwd.py
+++ b/example/ck_tile/01_fmha/codegen/ops/fmha_fwd.py
@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: MIT
+# Copyright (c) 2018-2024, Advanced Micro Devices, Inc. All rights reserved.
+# generate kernel instances to speed up compilation
+
 import copy
 from dataclasses import dataclass
 import fnmatch
diff --git a/example/ck_tile/01_fmha/generate.py b/example/ck_tile/01_fmha/generate.py
index 17eac0a87b..893fab2b24 100644
--- a/example/ck_tile/01_fmha/generate.py
+++ b/example/ck_tile/01_fmha/generate.py
@@ -4,7 +4,7 @@
 
 import argparse
 from pathlib import Path
-from typing import Optional
+from typing import List, Optional
 
 from codegen.cmake_config import *
 from codegen.ops import (
@@ -12,40 +12,45 @@ from codegen.ops import (
     fmha_bwd
 )
 
-def write_blobs(output_dir: Optional[str], direction: str, kernel_filter : Optional[str], receipt, mask_impl) -> None:
+def write_blobs(output_dir: Optional[str], api_list : List[str], kernel_filter : Optional[str], receipt, mask_impl) -> None:
     if output_dir is None:
         output_dir = Path(__file__).parent
     else:
         output_dir = Path(output_dir) / GEN_DIR
 
     output_dir.mkdir(parents=True, exist_ok=True)
-    if direction == 'fwd':
-        fmha_fwd.write_blobs(output_dir, kernel_filter, receipt, mask_impl)
-    else:
-        fmha_bwd.write_blobs(output_dir, kernel_filter, receipt, mask_impl)
+
+    write_blobs_iml = {
+        'fwd': fmha_fwd.write_blobs,
+        'bwd': fmha_bwd.write_blobs,
+    }
+    for api in api_list:
+        write_blobs_iml[api](output_dir, kernel_filter, receipt, mask_impl)
 
 # list all the files that will be generated
-def list_blobs(output_file : Optional[str], direction : str, kernel_filter : Optional[str], receipt, mask_impl) -> None:
+def list_blobs(output_file : Optional[str], api_list : List[str], kernel_filter : Optional[str], receipt, mask_impl) -> None:
     assert output_file is not None
     file_path = Path(output_file)
 
-    if direction == 'fwd':
-        fmha_fwd.list_blobs(file_path, kernel_filter, receipt, mask_impl)
-    else:
-        fmha_bwd.list_blobs(file_path, kernel_filter, receipt, mask_impl)
+    list_blobs_iml = {
+        'fwd': fmha_fwd.list_blobs,
+        'bwd': fmha_bwd.list_blobs,
+    }
+    for api in api_list:
+        list_blobs_iml[api](file_path, kernel_filter, receipt, mask_impl)
 
 if __name__ == "__main__":
     parser = argparse.ArgumentParser(
         prog="generate",
-        description="gen api for CK fmha kernel",
+        description="gen API for CK fmha kernel",
     )
     parser.add_argument(
-        "-d",
-        "--direction",
+        "-a",
+        "--apis",
         default='fwd',
         choices=['fwd', 'bwd'],
         required=False,
-        help="choose the direction of kernels(default: fwd)"
+        help="supply API(s) to generate (default: fwd). separated by comma."
     )
     parser.add_argument(
         "-o",
@@ -86,7 +91,8 @@ if __name__ == "__main__":
     )
 
     args = parser.parse_args()
+    api_list = args.apis.split(',')
     if args.list_blobs is not None:
-        list_blobs(args.list_blobs, args.direction, args.filter, int(args.receipt), mask_impl=args.mask)
+        list_blobs(args.list_blobs, api_list, args.filter, int(args.receipt), mask_impl=args.mask)
     else:
-        write_blobs(args.output_dir, args.direction, args.filter, int(args.receipt), mask_impl=args.mask)
+        write_blobs(args.output_dir, api_list, args.filter, int(args.receipt), mask_impl=args.mask)