---
id: pr-vllm-13789
repo: vllm-project/vllm
pr: 13789
title: '[Attention] MLA support for V1'
author: chenyang78
date: '2025-02-27'
url: https://github.com/vllm-project/vllm/pull/13789
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- mla
techniques: []
hardware_features: []
kernel_types:
- attention
- mla
languages:
- cuda-cpp
- triton
captured_at: '2026-04-27'
status: merged
merge_sha: 58d1b2aa772deb166355423997fbf5c1b6b186a1
inclusion_reason: kernel file changes
changed_paths:
- vllm/attention/layer.py
- vllm/model_executor/models/deepseek_v2.py
- vllm/platforms/cuda.py
- vllm/platforms/interface.py
- vllm/v1/attention/backends/flash_attn.py
- vllm/v1/attention/backends/mla/__init__.py
- vllm/v1/attention/backends/mla/common.py
- vllm/v1/attention/backends/triton_mla.py
- vllm/v1/worker/gpu_input_batch.py
- vllm/v1/worker/gpu_model_runner.py
head_ref_oid: 6bf7bfbc5b09dbf19adebd7d20e53c1bb90bc281
artifact_dir: evidence/pull-bundles/vllm/gh-13789
---
# [Attention] MLA support for V1

- Repository: `vllm-project/vllm`
- PR: [13789](https://github.com/vllm-project/vllm/pull/13789)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/attention/layer.py`
- `vllm/model_executor/models/deepseek_v2.py`
- `vllm/platforms/cuda.py`
- `vllm/platforms/interface.py`
- `vllm/v1/attention/backends/flash_attn.py`
- `vllm/v1/attention/backends/mla/__init__.py`
- `vllm/v1/attention/backends/mla/common.py`
- `vllm/v1/attention/backends/triton_mla.py`
- `vllm/v1/worker/gpu_input_batch.py`
- `vllm/v1/worker/gpu_model_runner.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-13789`
