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fix: add CUDA include path for CCCL headers (CUDA 13+ compatibility) #145

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fix: add CUDA include path for CCCL headers (CUDA 13+ compatibility) #145

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2cfe5cf
fix: correct outdated function reference in docstring
yurekami Dec 25, 2025
b79616d
fix: add CUDA include path for CCCL headers (CUDA 13+ compatibility)
yurekami Dec 28, 2025
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2 changes: 1 addition & 1 deletion flash_mla/flash_mla_interface.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ def get_mla_metadata(
num_heads_k: The number of k heads.
num_heads_q: The number of q heads. This argument is optional when sparse attention is not enabled
is_fp8_kvcache: Whether the k_cache and v_cache are in fp8 format.
topk: If not None, sparse attention will be enabled, and only tokens in the `indices` array passed to `flash_mla_with_kvcache_sm90` will be attended to.
topk: If not None, sparse attention will be enabled, and only tokens in the `indices` array passed to `flash_mla_with_kvcache` will be attended to.

Returns:
tile_scheduler_metadata: (num_sm_parts, TileSchedulerMetaDataSize), dtype torch.int32.
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2 changes: 2 additions & 0 deletions setup.py
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Expand Up @@ -97,6 +97,8 @@ def get_nvcc_thread_args():
Path(this_dir) / "csrc" / "sm90",
Path(this_dir) / "csrc" / "cutlass" / "include",
Path(this_dir) / "csrc" / "cutlass" / "tools" / "util" / "include",
# CUDA 13+ moved cuda/std headers to CCCL - add CUDA include path explicitly
Path(CUDA_HOME) / "include",
],
)
)
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