mirror of
https://github.com/NVIDIA/TensorRT-LLM.git
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83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/*
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* Copyright (c) 1993-2023, NVIDIA CORPORATION. All rights reserved.
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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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#pragma once
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#include <cstddef>
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#include <cstdint>
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namespace tensorrt_llm::common
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{
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std::uintptr_t constexpr kCudaMemAlign = 128;
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namespace
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{
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int8_t* alignPtr(int8_t* ptr, uintptr_t to)
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{
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uintptr_t addr = (uintptr_t) ptr;
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if (addr % to)
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{
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addr += to - addr % to;
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}
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return (int8_t*) addr;
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}
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int8_t* nextWorkspacePtrCommon(int8_t* ptr, uintptr_t previousWorkspaceSize, const uintptr_t alignment)
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{
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uintptr_t addr = (uintptr_t) ptr;
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addr += previousWorkspaceSize;
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return alignPtr((int8_t*) addr, alignment);
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}
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int8_t* nextWorkspacePtr(int8_t* ptr, uintptr_t previousWorkspaceSize)
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{
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return nextWorkspacePtrCommon(ptr, previousWorkspaceSize, kCudaMemAlign);
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}
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int8_t* nextWorkspacePtr(
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int8_t* const base, uintptr_t& offset, const uintptr_t size, const uintptr_t alignment = kCudaMemAlign)
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{
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uintptr_t curr_offset = offset;
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uintptr_t next_offset = curr_offset + ((size + alignment - 1) / alignment) * alignment;
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int8_t* newptr = size == 0 ? nullptr : base + curr_offset;
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offset = next_offset;
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return newptr;
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}
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int8_t* nextWorkspacePtrWithAlignment(
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int8_t* ptr, uintptr_t previousWorkspaceSize, const uintptr_t alignment = kCudaMemAlign)
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{
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return nextWorkspacePtrCommon(ptr, previousWorkspaceSize, alignment);
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}
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size_t calculateTotalWorkspaceSize(size_t const* workspaces, int count, const uintptr_t alignment = kCudaMemAlign)
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{
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size_t total = 0;
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for (int i = 0; i < count; i++)
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{
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total += workspaces[i];
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if (workspaces[i] % alignment)
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{
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total += alignment - (workspaces[i] % alignment);
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}
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}
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return total;
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}
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} // namespace
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}; // namespace tensorrt_llm::common
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