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c1867ed981
Related-To: NEO-13715, NEO-14862 Signed-off-by: Chandio, Bibrak Qamar <bibrak.qamar.chandio@intel.com>
50 lines
2.3 KiB
C++
50 lines
2.3 KiB
C++
/*
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* Copyright (C) 2021-2025 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#pragma once
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#include <stdint.h>
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namespace NEO {
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struct MemAdviseFlags {
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union {
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uint8_t allFlags; /* all memAdvise flags */
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struct
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{
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uint8_t readOnly : 1; /* ZE_MEMORY_ADVICE_SET_READ_MOSTLY or ZE_MEMORY_ADVICE_CLEAR_READ_MOSTLY */
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uint8_t devicePreferredLocation : 1; /* ZE_MEMORY_ADVICE_SET_PREFERRED_LOCATION or ZE_MEMORY_ADVICE_CLEAR_PREFERRED_LOCATION */
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uint8_t nonAtomic : 1; /* ZE_MEMORY_ADVICE_SET_NON_ATOMIC_MOSTLY or ZE_MEMORY_ADVICE_CLEAR_NON_ATOMIC_MOSTLY */
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uint8_t cachedMemory : 1; /* ZE_MEMORY_ADVICE_BIAS_CACHED or ZE_MEMORY_ADVICE_BIAS_UNCACHED */
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uint8_t cpuMigrationBlocked : 1; /* ZE_MEMORY_ADVICE_SET_READ_MOSTLY and ZE_MEMORY_ADVICE_SET_PREFERRED_LOCATION */
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uint8_t systemPreferredLocation : 1; /* ZE_MEMORY_ADVICE_SET_SYSTEM_MEMORY_PREFERRED_LOCATION or ZE_MEMORY_ADVICE_CLEAR_SYSTEM_MEMORY_PREFERRED_LOCATION */
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uint8_t reserved1 : 1;
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uint8_t reserved0 : 1;
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};
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};
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MemAdviseFlags() {
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allFlags = 0;
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cachedMemory = 1;
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}
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};
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static_assert(sizeof(MemAdviseFlags) == sizeof(uint8_t), "");
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enum class MemAdvise : uint8_t {
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setReadMostly = 0, /* hint that memory will be read from frequently and written to rarely */
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clearReadMostly, /* removes the effect of SetReadMostly */
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setPreferredLocation, /* hint that the preferred memory location is the specified device */
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clearPreferredLocation, /* removes the effect of SetPreferredLocation */
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setNonAtomicMostly, /* hints that memory will mostly be accessed non-atomically */
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clearNonAtomicMostly, /* removes the effect of SetNonAtomicMostly */
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biasCached, /* hints that memory should be cached */
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biasUncached, /* hints that memory should not be cached */
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setSystemMemoryPreferredLocation, /* hint that the preferred memory location is host memory */
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clearSystemMemoryPreferredLocation, /* removes the effect of SetSystemMemoryPreferredLocation */
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invalidAdvise /* invalid advise */
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};
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} // namespace NEO
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