---
id: pr-flashinfer-2255
repo: flashinfer-ai/flashinfer
pr: 2255
title: 'fix: support int64 IdType for RoPE part argument in `rope_quantize_fp8_append_paged_kv_cache`'
author: elvischenv
date: '2025-12-24'
url: https://github.com/flashinfer-ai/flashinfer/pull/2255
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- fp8
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- attention
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: 0ccf4e3ad29e6b84635bd953946be9d968e42107
inclusion_reason: kernel file changes
changed_paths:
- csrc/rope.cu
- flashinfer/rope.py
- include/flashinfer/pos_enc.cuh
- tests/attention/test_rope.py
head_ref_oid: 0903058ce72d91f0696a60b6e9fa379d99b2f553
artifact_dir: evidence/pull-bundles/flashinfer/gh-2255
---
# fix: support int64 IdType for RoPE part argument in `rope_quantize_fp8_append_paged_kv_cache`

- Repository: `flashinfer-ai/flashinfer`
- PR: [2255](https://github.com/flashinfer-ai/flashinfer/pull/2255)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `csrc/rope.cu`
- `flashinfer/rope.py`
- `include/flashinfer/pos_enc.cuh`
- `tests/attention/test_rope.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2255`
