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/*
* Copyright (C) 2019-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#pragma once
#include "shared/source/helpers/debug_helpers.h"
#include "shared/source/helpers/device_bitfield.h"
#include "shared/source/helpers/non_copyable_or_moveable.h"
#include <atomic>
#include <memory>
namespace NEO {
class LocalMemoryUsageBankSelector : public NonCopyableAndNonMovableClass {
public:
LocalMemoryUsageBankSelector() = delete;
LocalMemoryUsageBankSelector(uint32_t banksCount);
uint32_t getLeastOccupiedBank(DeviceBitfield deviceBitfield);
void reserveOnBanks(uint32_t memoryBanks, uint64_t allocationSize) {
updateUsageInfo(memoryBanks, allocationSize, true);
}
void freeOnBanks(uint32_t memoryBanks, uint64_t allocationSize) {
updateUsageInfo(memoryBanks, allocationSize, false);
}
uint64_t getOccupiedMemorySizeForBank(uint32_t bankIndex) {
UNRECOVERABLE_IF(bankIndex >= banksCount);
return memorySizes[bankIndex].load();
}
protected:
uint32_t banksCount = 0;
std::unique_ptr<std::atomic<uint64_t>[]> memorySizes = nullptr;
void updateUsageInfo(uint32_t memoryBanks, uint64_t allocationSize, bool reserve);
void freeOnBank(uint32_t bankIndex, uint64_t allocationSize);
void reserveOnBank(uint32_t bankIndex, uint64_t allocationSize);
};
} // namespace NEO
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