---
id: pr-flashinfer-1189
repo: flashinfer-ai/flashinfer
pr: 1189
title: update trtllm-gen decode attention kernel launcher
author: wenscarl
date: '2025-07-07'
url: https://github.com/flashinfer-ai/flashinfer/pull/1189
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
- flash-attention
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
- flash-attention
languages:
- cuda-cpp
captured_at: '2026-04-17'
status: merged
merge_sha: aff79d1cd76f64f4b9e2408e4f9650cda1d43d12
inclusion_reason: kernel file changes
changed_paths:
- csrc/trtllm_fmha_kernel_launcher.cu
- include/flashinfer/trtllm/fmha/cubin/kernelMetaInfo.h
- include/flashinfer/trtllm/fmha/fmhaKernels.cuh
- include/flashinfer/trtllm/fmha/fmhaRunnerParams.h
- include/flashinfer/trtllm/fmha/gen_kernel_launcher.cuh
- include/flashinfer/trtllm/fmha/kernelParams.h
- tests/test_trtllm_gen_decode.py
head_ref_oid: 86fbaa5b84f700eda9f802c7fb9b321b0afca9ef
artifact_dir: evidence/pull-bundles/flashinfer/gh-1189
---
# update trtllm-gen decode attention kernel launcher

- Repository: `flashinfer-ai/flashinfer`
- PR: [1189](https://github.com/flashinfer-ai/flashinfer/pull/1189)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/trtllm_fmha_kernel_launcher.cu`
- `include/flashinfer/trtllm/fmha/cubin/kernelMetaInfo.h`
- `include/flashinfer/trtllm/fmha/fmhaKernels.cuh`
- `include/flashinfer/trtllm/fmha/fmhaRunnerParams.h`
- `include/flashinfer/trtllm/fmha/gen_kernel_launcher.cuh`
- `include/flashinfer/trtllm/fmha/kernelParams.h`
- `tests/test_trtllm_gen_decode.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-1189`
