58 lines
2 KiB
C++
58 lines
2 KiB
C++
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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "core/core.h"
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#include "core/hle/kernel/k_memory_layout.h"
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#include "core/hle/kernel/k_process.h"
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#include "core/hle/kernel/svc.h"
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namespace Kernel::Svc {
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/// Attempts to locks a mutex
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Result ArbitrateLock(Core::System& system, Handle thread_handle, VAddr address, u32 tag) {
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LOG_TRACE(Kernel_SVC, "called thread_handle=0x{:08X}, address=0x{:X}, tag=0x{:08X}",
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thread_handle, address, tag);
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// Validate the input address.
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if (IsKernelAddress(address)) {
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LOG_ERROR(Kernel_SVC, "Attempting to arbitrate a lock on a kernel address (address={:08X})",
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address);
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return ResultInvalidCurrentMemory;
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}
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if (!Common::IsAligned(address, sizeof(u32))) {
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LOG_ERROR(Kernel_SVC, "Input address must be 4 byte aligned (address: {:08X})", address);
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return ResultInvalidAddress;
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}
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return system.Kernel().CurrentProcess()->WaitForAddress(thread_handle, address, tag);
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}
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Result ArbitrateLock32(Core::System& system, Handle thread_handle, u32 address, u32 tag) {
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return ArbitrateLock(system, thread_handle, address, tag);
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}
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/// Unlock a mutex
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Result ArbitrateUnlock(Core::System& system, VAddr address) {
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LOG_TRACE(Kernel_SVC, "called address=0x{:X}", address);
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// Validate the input address.
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if (IsKernelAddress(address)) {
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LOG_ERROR(Kernel_SVC,
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"Attempting to arbitrate an unlock on a kernel address (address={:08X})",
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address);
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return ResultInvalidCurrentMemory;
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}
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if (!Common::IsAligned(address, sizeof(u32))) {
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LOG_ERROR(Kernel_SVC, "Input address must be 4 byte aligned (address: {:08X})", address);
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return ResultInvalidAddress;
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}
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return system.Kernel().CurrentProcess()->SignalToAddress(address);
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}
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Result ArbitrateUnlock32(Core::System& system, u32 address) {
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return ArbitrateUnlock(system, address);
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}
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} // namespace Kernel::Svc
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