---
id: pr-vllm-17625
repo: vllm-project/vllm
pr: 17625
title: '[NVIDIA] Add Cutlass MLA backend'
author: kaixih
date: '2025-06-04'
url: https://github.com/vllm-project/vllm/pull/17625
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 41aa5784287f00b026f3ba225ac18ab3caccc622
inclusion_reason: defer
changed_paths:
- csrc/attention/mla/cutlass_mla_kernels.cu
- tests/kernels/test_cutlass_mla_decode.py
- vllm/engine/arg_utils.py
- vllm/platforms/cuda.py
- vllm/platforms/interface.py
- vllm/v1/attention/backends/mla/common.py
- vllm/v1/attention/backends/mla/cutlass_mla.py
artifact_dir: evidence/pull-bundles/vllm/gh-17625
head_ref_oid: 9d3b08b084137962a2a751b1d20984b717339365
---
# [NVIDIA] Add Cutlass MLA backend

- Repository: `vllm-project/vllm`
- PR: [17625](https://github.com/vllm-project/vllm/pull/17625)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `csrc/attention/mla/cutlass_mla_kernels.cu`
- `tests/kernels/test_cutlass_mla_decode.py`
- `vllm/engine/arg_utils.py`
- `vllm/platforms/cuda.py`
- `vllm/platforms/interface.py`
- `vllm/v1/attention/backends/mla/common.py`
- `vllm/v1/attention/backends/mla/cutlass_mla.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-17625`
