whjthu · Oct 20, 2026 · Oct 12, 2026 · Oct 12, 2026 · Oct 12, 2026 · Oct 12, 2026
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,4 +1,23 @@
 cmake_minimum_required(VERSION 3.18)
+if(SKBUILD_STATE STREQUAL "sdist")
+    # Source packaging must not probe compilers, GPUs or installed SDKs.
+    project(InfiniOps LANGUAGES NONE)
+    include(cmake/MarlinSource.cmake)
+    foreach(_marlin_file IN LISTS _marlin_source_files)
+        configure_file("${vllm_marlin_SOURCE_DIR}/${_marlin_file}"
+            "${CMAKE_BINARY_DIR}/marlin-source/${_marlin_file}" COPYONLY)
+    endforeach()
+    include(cmake/FlashAttentionSource.cmake)
+    foreach(_flash_file IN LISTS _flash_source_files)
+        configure_file("${flash_attention_SOURCE_DIR}/${_flash_file}"
+            "${CMAKE_BINARY_DIR}/flash-attention-source/${_flash_file}" COPYONLY)
+    endforeach()
+    configure_file("${flash_attention_cutlass_SOURCE_DIR}/LICENSE.txt"
+        "${CMAKE_BINARY_DIR}/flash-attention-cutlass-source/LICENSE.txt" COPYONLY)
+    file(COPY "${flash_attention_cutlass_SOURCE_DIR}/include"
+        DESTINATION "${CMAKE_BINARY_DIR}/flash-attention-cutlass-source")
+    return()
+endif()
 project(InfiniOps LANGUAGES CXX)
 
 if(POLICY CMP0116)
@@ -26,6 +45,9 @@ option(WITH_ASCEND "Enable Ascend backend" OFF)
 option(WITH_TORCH "Enable PyTorch C++ backend" OFF)
 option(WITH_LINKED "Enable linked third-party operator backends" OFF)
 
+option(BUILD_NVIDIA_FLASH_INFERENCE "Build pinned Torch-free NVIDIA inference Attention" OFF)
+option(BUILD_NVIDIA_W4_MARLIN "Build NVIDIA AWQ/GPTQ Marlin providers (CUDA >= 12.3)" OFF)
+
 option(WITH_NINETOOTHED "Enable NineToothed-generated kernels" OFF)
 
 option(WITH_TRITON "Enable the Triton JIT backend" OFF)
@@ -188,6 +210,13 @@ if(AUTO_DETECT_DEVICES)
     endif()
 endif()
 
+if(BUILD_NVIDIA_FLASH_INFERENCE AND NOT WITH_NVIDIA)
+    message(FATAL_ERROR "Native FlashAttention requires WITH_NVIDIA")
+endif()
+if(BUILD_NVIDIA_W4_MARLIN AND NOT WITH_NVIDIA)
+    message(FATAL_ERROR "Marlin requires WITH_NVIDIA")
+endif()
+
 if(AUTO_DETECT_BACKENDS)
     message(STATUS "Auto-detecting available backends...")
 
@@ -239,7 +268,10 @@ if(AUTO_DETECT_BACKENDS)
     endif()
 endif()
 
-if(WITH_TORCH OR WITH_LINKED)
+ # A linked backend is not necessarily a Torch backend: TVM-FFI transports
+ # consume DLPack views and their own runtime. Discover Torch lazily only when
+ # native Torch wrappers or a selected linked Torch transport need it.
+macro(infiniops_find_torch)
     if(WITH_MARS AND WITH_TORCH AND WITH_LINKED)
         find_package(Python COMPONENTS Interpreter Development.Embed REQUIRED)
     else()
@@ -267,7 +299,7 @@ if(WITH_TORCH OR WITH_LINKED)
 
     if(NOT _torch_result EQUAL 0)
         message(FATAL_ERROR
-            "`WITH_TORCH=ON` or `WITH_LINKED=ON` requires an installed `torch` package.")
+            "The selected Torch backend/transport requires an installed `torch` package.")
     endif()
 
     execute_process(
@@ -360,6 +392,10 @@ if(WITH_TORCH OR WITH_LINKED)
     endif()
 
     message(STATUS "Found PyTorch: ${TORCH_INCLUDE_DIRS}")
+endmacro()
+
+if(WITH_TORCH)
+    infiniops_find_torch()
 endif()
 
 # Only one CUDA-like GPU backend can be enabled at a time.

diff --git a/LICENSES/Apache-2.0-components.txt b/LICENSES/Apache-2.0-components.txt
@@ -0,0 +1,30 @@
+Apache-2.0 components in the fixed native sampling/runtime recipe
+
+The complete common Apache License, Version 2.0, including sections 1-9 and
+the application appendix, is in repository LICENSE, installed beside this file
+as share/licenses/InfiniOps/LICENSE. Distribute it with these copyrights,
+the original project NOTICE files and the applicable secondary terms.
+This is not a notice inventory for complete Python wheels or arbitrary binaries.
+
+FlashInfer 0.6.7
+https://github.com/flashinfer-ai/flashinfer/tree/v0.6.7
+Commit: 56ed54098411946525da17eca2bcfd7ec72a515e
+Copyright 2025-2026 NVIDIA
+Copyright 2023-2026 FlashInfer community (https://flashinfer.ai/)
+Native source headers also retain Copyright (c) 2023, 2024, 2025 and 2026 by
+FlashInfer team. Shared terms: LICENSE. Original NOTICE: FlashInfer-0.6.7/NOTICE.txt.
+
+Apache TVM FFI 0.1.10
+https://github.com/apache/tvm-ffi/tree/v0.1.10
+Commit: 1fed0ae0421e614d45662e8ee6bcae353d3ab2ea
+Copyright 2024-present The Apache Software Foundation
+Shared terms: LICENSE. Original NOTICE: TVM-FFI-0.1.10/NOTICE.txt.
+
+DLPack: Copyright 2017 by Contributors
+Shared Apache-2.0 terms: LICENSE. Its interfaces are used by the native runtime.
+libbacktrace: original complete copyright and BSD-3-Clause terms retained in
+TVM-FFI-0.1.10/LICENSE.libbacktrace.txt; retain them for the optional compiled support.
+CUDA toolkit supplied headers/libraries remain subject to their own applicable
+redistribution terms; this list does not replace those materials.
+
+Source scope and resolved-package redistribution: repository THIRD_PARTY.txt.
diff --git a/LICENSES/CUTLASS-BSD-3-Clause.txt b/LICENSES/CUTLASS-BSD-3-Clause.txt
@@ -0,0 +1,34 @@
+Copyright (c) 2017 - 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+SPDX-License-Identifier: BSD-3-Clause
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Certain files within this repository are subject to separate licensing terms:
+
+- The files located in the `python/CuTeDSL` directory are licensed under the
+  NVIDIA End User License Agreement (EULA). Please refer to
+  https://docs.nvidia.com/cutlass/media/docs/pythonDSL/license.html
+  for the full terms.
diff --git a/LICENSES/FasterTransformer-BSD-3-Clause.txt b/LICENSES/FasterTransformer-BSD-3-Clause.txt
@@ -0,0 +1,27 @@
+Copyright (c) 2017 - 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+SPDX-License-Identifier: BSD-3-Clause
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/LICENSES/FlashInfer-0.6.7/NOTICE.txt b/LICENSES/FlashInfer-0.6.7/NOTICE.txt
@@ -0,0 +1,8 @@
+FlashInfer
+Copyright 2025-2026 NVIDIA
+Copyright 2023-2026 FlashInfer community (https://flashinfer.ai/)
+
+-------------------------------------------------------------------------------------------------
+Some of the code in this project are adapted from other open-source projects with different
+licenses. This product also bundles some third-party components under other open source licenses.
+See licenses/ for text of these licenses.
diff --git a/LICENSES/InfiniCore-MIT.txt b/LICENSES/InfiniCore-MIT.txt
@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright © 2025 InfiniTensor
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/LICENSES/TVM-FFI-0.1.10/LICENSE.libbacktrace.txt b/LICENSES/TVM-FFI-0.1.10/LICENSE.libbacktrace.txt
@@ -0,0 +1,29 @@
+# Copyright (C) 2012-2016 Free Software Foundation, Inc.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+
+#     (1) Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+
+#     (2) Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in
+#     the documentation and/or other materials provided with the
+#     distribution.
+
+#     (3) The name of the author may not be used to
+#     endorse or promote products derived from this software without
+#     specific prior written permission.
+
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
diff --git a/LICENSES/TVM-FFI-0.1.10/NOTICE.txt b/LICENSES/TVM-FFI-0.1.10/NOTICE.txt
@@ -0,0 +1,5 @@
+Apache TVM FFI
+Copyright 2024-present The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).
diff --git a/README.md b/README.md
@@ -49,6 +49,7 @@ InfiniOps extension so `import infini.ops` can load its runtime dependency.
 | `-DWITH_CAMBRICON=[ON\|OFF]` | Compile the Cambricon implementation | OFF |
 | `-DWITH_ASCEND=[ON\|OFF]` | Compile the Ascend implementation | OFF |
 | `-DWITH_TORCH=[ON\|OFF]` | Compile generated PyTorch ATen-backed operators | OFF |
+| `-DBUILD_NVIDIA_W4_MARLIN=[ON\|OFF]` | Build AWQ/GPTQ Marlin providers; requires CUDA >= 12.3 and C++20 | OFF |
 | `-DAUTO_DETECT_DEVICES=[ON\|OFF]` | Auto-detect available platforms | ON |
 | `-DINFINI_RT_ROOT=<path>` | InfiniRT install prefix containing `include/` and `lib/` | `$INFINI_RT_ROOT` |