# Copyright (c) 2026 LightSeek Foundation
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"""CUDA KV cache transfer kernels."""

from tokenspeed_kernel.registry import error_fn

try:
    from tokenspeed_kernel.thirdparty.cuda.kvcacheio import (
        transfer_kv_all_layer_lf_pf,
        transfer_kv_all_layer_lf_ph,
        transfer_kv_all_layer_mla,
        transfer_kv_all_layer_mla_lf_pf,
        transfer_kv_direct,
        transfer_kv_per_layer_mla,
        transfer_kv_per_layer_mla_pf_lf,
        transfer_kv_per_layer_pf_lf,
        transfer_kv_per_layer_ph_lf,
    )
except ImportError:
    transfer_kv_all_layer_lf_pf = error_fn
    transfer_kv_all_layer_lf_ph = error_fn
    transfer_kv_all_layer_mla = error_fn
    transfer_kv_all_layer_mla_lf_pf = error_fn
    transfer_kv_direct = error_fn
    transfer_kv_per_layer_mla = error_fn
    transfer_kv_per_layer_mla_pf_lf = error_fn
    transfer_kv_per_layer_pf_lf = error_fn
    transfer_kv_per_layer_ph_lf = error_fn

__all__ = [
    "transfer_kv_all_layer_lf_pf",
    "transfer_kv_all_layer_lf_ph",
    "transfer_kv_all_layer_mla",
    "transfer_kv_all_layer_mla_lf_pf",
    "transfer_kv_direct",
    "transfer_kv_per_layer_mla",
    "transfer_kv_per_layer_mla_pf_lf",
    "transfer_kv_per_layer_pf_lf",
    "transfer_kv_per_layer_ph_lf",
]