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// Copyright 2020 The Dawn Authors
//
// 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.
#include "dawn_native/d3d12/PageableD3D12.h"
namespace dawn_native { namespace d3d12 {
Pageable::Pageable(ComPtr<ID3D12Pageable> d3d12Pageable,
MemorySegment memorySegment,
uint64_t size)
: mD3d12Pageable(std::move(d3d12Pageable)), mMemorySegment(memorySegment), mSize(size) {
}
// When a pageable is destroyed, it no longer resides in resident memory, so we must evict
// it from the LRU cache. If this heap is not manually removed from the LRU-cache, the
// ResidencyManager will attempt to use it after it has been deallocated.
Pageable::~Pageable() {
if (IsInResidencyLRUCache()) {
RemoveFromList();
}
}
ID3D12Pageable* Pageable::GetD3D12Pageable() const {
return mD3d12Pageable.Get();
}
Serial Pageable::GetLastUsage() const {
return mLastUsage;
}
void Pageable::SetLastUsage(Serial serial) {
mLastUsage = serial;
}
uint64_t Pageable::GetLastSubmission() const {
return mLastSubmission;
}
void Pageable::SetLastSubmission(Serial serial) {
mLastSubmission = serial;
}
MemorySegment Pageable::GetMemorySegment() const {
return mMemorySegment;
}
uint64_t Pageable::GetSize() const {
return mSize;
}
bool Pageable::IsInResidencyLRUCache() const {
return IsInList();
}
void Pageable::IncrementResidencyLock() {
mResidencyLockRefCount++;
}
void Pageable::DecrementResidencyLock() {
mResidencyLockRefCount--;
}
bool Pageable::IsResidencyLocked() const {
return mResidencyLockRefCount != 0;
}
}} // namespace dawn_native::d3d12