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xc-llm-ascend/vllm_ascend/_310p/ops/linear.py

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#
# Copyright (c) 2026 Huawei Technologies Co., Ltd. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import annotations
import torch
import torch.nn as nn
import torch_npu
from vllm.model_executor.layers.linear import (
LinearBase,
QuantizeMethodBase,
UnquantizedLinearMethod,
)
from vllm.model_executor.layers.quantization.base_config import QuantizationConfig
from vllm_ascend.utils import ACL_FORMAT_FRACTAL_NZ
class AscendUnquantizedLinearMethod310(UnquantizedLinearMethod):
def process_weights_after_loading(self, layer: nn.Module) -> None:
super().process_weights_after_loading(layer)
if "conv1d" not in getattr(layer, "prefix", ""):
layer.weight.data = torch_npu.npu_format_cast(layer.weight.data, ACL_FORMAT_FRACTAL_NZ)
class AscendLinearBase310(LinearBase):
def __init__(
self,
input_size: int,
output_size: int,
skip_bias_add: bool = False,
params_dtype: object | None = None,
quant_config: QuantizationConfig | None = None,
prefix: str = "",
*,
return_bias: bool = True,
disable_tp: bool = False,
):
nn.Module.__init__(self)
self.input_size = int(input_size)
self.output_size = int(output_size)
self.skip_bias_add = skip_bias_add
self.params_dtype = torch.float16
self.quant_config = quant_config
self.prefix = prefix
self.return_bias = return_bias
self.disable_tp = disable_tp
if quant_config is None:
self.quant_method: QuantizeMethodBase | None = AscendUnquantizedLinearMethod310()
else:
self.quant_method = quant_config.get_quant_method(self, prefix=prefix)