---
id: pr-vllm-22131
repo: vllm-project/vllm
pr: 22131
title: '[Kernel] Add support for block FP8 on SM120 (NVIDIA 5090 and RTX PRO 6000)'
author: 0xjunhao
date: '2025-08-08'
url: https://github.com/vllm-project/vllm/pull/22131
source_category: upstream-code
architectures:
- sm100
tags:
- fp8
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 3303f134e03f7a80b42e50065976be9d499c8683
inclusion_reason: kernel file changes
changed_paths:
- CMakeLists.txt
- csrc/cutlass_extensions/common.hpp
- csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm120_fp8.cu
- csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm120_fp8_dispatch.cuh
- csrc/quantization/cutlass_w8a8/c3x/scaled_mm_kernels.hpp
- csrc/quantization/cutlass_w8a8/scaled_mm_c3x_sm120.cu
head_ref_oid: 23f48a17c99f5d835fbdf6d6453acc4513130329
artifact_dir: evidence/pull-bundles/vllm/gh-22131
---
# [Kernel] Add support for block FP8 on SM120 (NVIDIA 5090 and RTX PRO 6000)

- Repository: `vllm-project/vllm`
- PR: [22131](https://github.com/vllm-project/vllm/pull/22131)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `CMakeLists.txt`
- `csrc/cutlass_extensions/common.hpp`
- `csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm120_fp8.cu`
- `csrc/quantization/cutlass_w8a8/c3x/scaled_mm_blockwise_sm120_fp8_dispatch.cuh`
- `csrc/quantization/cutlass_w8a8/c3x/scaled_mm_kernels.hpp`
- `csrc/quantization/cutlass_w8a8/scaled_mm_c3x_sm120.cu`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-22131`
