---
id: pr-sglang-5142
repo: sgl-project/sglang
pr: 5142
title: Blackwell Cutlass MLA kernel
author: trevor-m
date: '2025-04-12'
url: https://github.com/sgl-project/sglang/pull/5142
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- mla
techniques: []
hardware_features: []
kernel_types:
- attention
- mla
languages:
- cuda-cpp
- python
captured_at: '2026-04-27'
status: merged
merge_sha: f65b8d5c896c3f51f8f1e1ff03cd556e1c5dc1fd
inclusion_reason: kernel file changes
changed_paths:
- sgl-kernel/CMakeLists.txt
- sgl-kernel/csrc/attention/cutlass_mla_kernel.cu
- sgl-kernel/csrc/common_extension.cc
- sgl-kernel/include/sgl_kernel_ops.h
- sgl-kernel/python/sgl_kernel/__init__.py
- sgl-kernel/python/sgl_kernel/attention.py
- sgl-kernel/tests/test_cutlass_mla.py
head_ref_oid: 94da5a5a2df8661337a0cd6b43b158f62255b641
artifact_dir: evidence/pull-bundles/sglang/gh-5142
---
# Blackwell Cutlass MLA kernel

- Repository: `sgl-project/sglang`
- PR: [5142](https://github.com/sgl-project/sglang/pull/5142)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `sgl-kernel/CMakeLists.txt`
- `sgl-kernel/csrc/attention/cutlass_mla_kernel.cu`
- `sgl-kernel/csrc/common_extension.cc`
- `sgl-kernel/include/sgl_kernel_ops.h`
- `sgl-kernel/python/sgl_kernel/__init__.py`
- `sgl-kernel/python/sgl_kernel/attention.py`
- `sgl-kernel/tests/test_cutlass_mla.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-5142`
