---
id: pr-flashinfer-2053
repo: flashinfer-ai/flashinfer
pr: 2053
title: 'feat: add xqa mla backend'
author: qsang-nv
date: '2025-11-10'
url: https://github.com/flashinfer-ai/flashinfer/pull/2053
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
- mla
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
- mla
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: d42fb90ee59d269b77b218a93467f8af58756eba
inclusion_reason: kernel file changes
changed_paths:
- csrc/xqa/mla_sm120.cu
- flashinfer/decode.py
- tests/attention/test_trtllm_gen_mla.py
- tests/attention/test_xqa_mla_batch_decode.py
head_ref_oid: ab405e681c4cbd485cd4c3bf6ee9dab41d18608f
artifact_dir: evidence/pull-bundles/flashinfer/gh-2053
---
# feat: add xqa mla backend

- Repository: `flashinfer-ai/flashinfer`
- PR: [2053](https://github.com/flashinfer-ai/flashinfer/pull/2053)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/xqa/mla_sm120.cu`
- `flashinfer/decode.py`
- `tests/attention/test_trtllm_gen_mla.py`
- `tests/attention/test_xqa_mla_batch_decode.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2053`
