---
id: pr-tilelang-2107
repo: tile-ai/tilelang
pr: 2107
title: '[TMA] Support FP4 TensorMap TMA copies'
author: LeiWang1999
date: '2026-04-28'
url: https://github.com/tile-ai/tilelang/pull/2107
source_category: upstream-code
architectures:
- sm100
- sm90
tags:
- MLA
- TMA
- arch_pipeline
- benchmark_test
- blackwell
- compiler_runtime
- copy lowering
- fp4
- fp8
- gemm
- gemm_quant
- hopper
- memory_primitives
- mxfp4
techniques:
- async-copy
- fine-grained-quantization
- pipeline-stages
hardware_features:
- blackwell
- fp4
- fp8
- hopper
- mxfp4
- tma
kernel_types:
- compiler
- gemm
- memory
- mla
- runtime
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 5680e39e452c20a374786655450af588b8b85f20
inclusion_reason: 'Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.'
changed_paths:
- src/op/copy.cc
- src/op/utils.cc
- src/runtime/runtime.cc
- testing/python/language/test_tilelang_language_tma_copy.py
artifact_dir: evidence/pull-bundles/tilelang/gh-2107
head_ref_oid: 89784708de37aec43e9a4583801c8dc278928225
---
# [TMA] Support FP4 TensorMap TMA copies

- Repository: `tile-ai/tilelang`
- PR: [2107](https://github.com/tile-ai/tilelang/pull/2107)
- Decision: `Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.`
- Reason: Extract the architecture assumption first: SM target, TMA/WGMMA/tcgen path, cluster use, and pipeline stages.

## Changed Paths

- `src/op/copy.cc`
- `src/op/utils.cc`
- `src/runtime/runtime.cc`
- `testing/python/language/test_tilelang_language_tma_copy.py`

## Evidence Bundle

`evidence/pull-bundles/tilelang/gh-2107`
