---
id: pr-vllm-19781
repo: vllm-project/vllm
pr: 19781
title: Fix FA2 fallback for Blackwell V1
author: mgoin
date: '2025-06-19'
url: https://github.com/vllm-project/vllm/pull/19781
source_category: upstream-code
architectures:
- sm100
tags:
- gemm
techniques: []
hardware_features: []
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 36239f79dd356a8284ed4cf4d261312eac2495e1
inclusion_reason: semantic match with file changes
changed_paths:
- vllm/platforms/cuda.py
head_ref_oid: 5ba19f94ac7fc534c2745d0e3b33f0d9a949f15c
artifact_dir: evidence/pull-bundles/vllm/gh-19781
---
# Fix FA2 fallback for Blackwell V1

- Repository: `vllm-project/vllm`
- PR: [19781](https://github.com/vllm-project/vllm/pull/19781)
- Decision: `semantic match with file changes`
- Reason: semantic match with file changes

## Changed Paths

- `vllm/platforms/cuda.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-19781`
