2019-03-13 08:09:27 +01:00
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// Copyright 2019 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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2021-02-13 01:05:24 +01:00
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#include "core/hle/kernel/k_resource_limit.h"
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2019-03-13 08:09:27 +01:00
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#include "core/hle/kernel/kernel.h"
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2020-04-09 01:05:31 +02:00
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#include "core/hle/kernel/memory/page_table.h"
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2019-03-13 08:09:27 +01:00
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#include "core/hle/kernel/process.h"
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#include "core/hle/kernel/transfer_memory.h"
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#include "core/hle/result.h"
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2020-01-31 04:39:07 +01:00
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#include "core/memory.h"
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2019-03-13 08:09:27 +01:00
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namespace Kernel {
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2020-03-31 21:10:44 +02:00
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TransferMemory::TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory)
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2020-01-31 04:39:07 +01:00
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: Object{kernel}, memory{memory} {}
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2019-03-13 08:09:27 +01:00
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2020-01-31 04:39:07 +01:00
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TransferMemory::~TransferMemory() {
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// Release memory region when transfer memory is destroyed
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Reset();
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owner_process->GetResourceLimit()->Release(LimitableResource::TransferMemory, 1);
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2020-01-31 04:39:07 +01:00
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}
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2020-03-31 21:10:44 +02:00
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std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel,
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Core::Memory::Memory& memory,
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VAddr base_address, std::size_t size,
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KMemoryPermission permissions) {
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2020-01-31 04:39:07 +01:00
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std::shared_ptr<TransferMemory> transfer_memory{
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std::make_shared<TransferMemory>(kernel, memory)};
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2019-03-13 08:09:27 +01:00
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transfer_memory->base_address = base_address;
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transfer_memory->size = size;
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transfer_memory->owner_permissions = permissions;
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transfer_memory->owner_process = kernel.CurrentProcess();
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return transfer_memory;
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}
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2019-04-03 22:31:26 +02:00
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const u8* TransferMemory::GetPointer() const {
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return memory.GetPointer(base_address);
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}
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2020-01-31 04:39:07 +01:00
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ResultCode TransferMemory::Reserve() {
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return owner_process->PageTable().ReserveTransferMemory(base_address, size, owner_permissions);
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2020-01-31 04:39:07 +01:00
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}
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ResultCode TransferMemory::Reset() {
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2020-04-09 01:05:31 +02:00
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return owner_process->PageTable().ResetTransferMemory(base_address, size);
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2019-03-13 08:09:27 +01:00
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}
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} // namespace Kernel
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