---
id: pr-flashinfer-2770
repo: flashinfer-ai/flashinfer
pr: 2770
title: 'feat: Expose TRT-LLM FMHA style paged KV Cache and page table layout'
author: DomBrown
date: '2026-03-23'
url: https://github.com/flashinfer-ai/flashinfer/pull/2770
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
- flash-attention
- mla
- prefill
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
- flash-attention
- mla
- prefill
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 625c1c6bf0269a8defb967a0a1ef8bd9fe71e490
inclusion_reason: kernel file changes
changed_paths:
- csrc/trtllm_fmha_kernel_launcher.cu
- flashinfer/decode.py
- flashinfer/mla.py
- flashinfer/prefill.py
- flashinfer/utils.py
- include/flashinfer/trtllm/fmha/fmhaRunnerParams.h
- include/flashinfer/trtllm/fmha/kernelParams.h
- tests/attention/test_trtllm_gen_attention.py
- tests/attention/test_trtllm_gen_mla.py
head_ref_oid: 2aeba4c17483e717a7e3e41ced871a911d1c9539
artifact_dir: evidence/pull-bundles/flashinfer/gh-2770
---
# feat: Expose TRT-LLM FMHA style paged KV Cache and page table layout

- Repository: `flashinfer-ai/flashinfer`
- PR: [2770](https://github.com/flashinfer-ai/flashinfer/pull/2770)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/trtllm_fmha_kernel_launcher.cu`
- `flashinfer/decode.py`
- `flashinfer/mla.py`
- `flashinfer/prefill.py`
- `flashinfer/utils.py`
- `include/flashinfer/trtllm/fmha/fmhaRunnerParams.h`
- `include/flashinfer/trtllm/fmha/kernelParams.h`
- `tests/attention/test_trtllm_gen_attention.py`
- `tests/attention/test_trtllm_gen_mla.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2770`
