forked from suyu/suyu
ce7c02735e
Amends the parameter to match the documentation reference. Resolves a -Wdocumentation warning with clang.
57 lines
2 KiB
C++
57 lines
2 KiB
C++
// Copyright 2014 Citra Emulator Project
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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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#include "common/assert.h"
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#include "core/core.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/memory/page_table.h"
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#include "core/hle/kernel/shared_memory.h"
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namespace Kernel {
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SharedMemory::SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory)
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: Object{kernel}, device_memory{device_memory} {}
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SharedMemory::~SharedMemory() = default;
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std::shared_ptr<SharedMemory> SharedMemory::Create(
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KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process,
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Memory::PageLinkedList&& page_list, Memory::MemoryPermission owner_permission,
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Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size,
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std::string name) {
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std::shared_ptr<SharedMemory> shared_memory{
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std::make_shared<SharedMemory>(kernel, device_memory)};
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shared_memory->owner_process = owner_process;
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shared_memory->page_list = std::move(page_list);
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shared_memory->owner_permission = owner_permission;
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shared_memory->user_permission = user_permission;
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shared_memory->physical_address = physical_address;
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shared_memory->size = size;
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shared_memory->name = name;
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return shared_memory;
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}
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ResultCode SharedMemory::Map(Process& target_process, VAddr address, std::size_t size,
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Memory::MemoryPermission permissions) {
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const u64 page_count{(size + Memory::PageSize - 1) / Memory::PageSize};
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if (page_list.GetNumPages() != page_count) {
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UNIMPLEMENTED_MSG("Page count does not match");
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}
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const Memory::MemoryPermission expected =
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&target_process == owner_process ? owner_permission : user_permission;
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if (permissions != expected) {
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UNIMPLEMENTED_MSG("Permission does not match");
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}
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return target_process.PageTable().MapPages(address, page_list, Memory::MemoryState::Shared,
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permissions);
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}
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} // namespace Kernel
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