52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
// This is only a plugin used for flashinfer 0.1.6. The new version does not need it.
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/*
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* Copyright (c) 2025 by SGLang team.
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* Copyright (c) 2025 by FlashInfer team.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <flashinfer/quantization.cuh>
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#include "pytorch_extension_utils.h"
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using namespace flashinfer;
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// bitorder = "little"
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void segment_packbits(
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at::Tensor x,
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at::Tensor input_indptr,
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at::Tensor output_indptr,
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at::Tensor y,
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int64_t batch_size,
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int64_t cuda_stream) {
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CHECK_INPUT(x);
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CHECK_INPUT(input_indptr);
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CHECK_INPUT(output_indptr);
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auto device = x.device();
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CHECK_EQ(input_indptr.device(), device);
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CHECK_EQ(output_indptr.device(), device);
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CHECK_EQ(y.device(), device);
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CHECK_GE(output_indptr.size(0), batch_size + 1);
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cudaStream_t stream = reinterpret_cast<cudaStream_t>(cuda_stream);
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cudaError_t status = quantization::SegmentPackBits(
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static_cast<bool*>(x.data_ptr()),
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static_cast<uint8_t*>(y.data_ptr()),
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static_cast<int32_t*>(input_indptr.data_ptr()),
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static_cast<int32_t*>(output_indptr.data_ptr()),
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batch_size,
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quantization::BitOrder::kLittle,
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stream);
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}
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