1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "core/core.h"
#include "core/hle/kernel/k_memory_layout.h"
#include "core/hle/kernel/k_process.h"
#include "core/hle/kernel/svc.h"
namespace Kernel::Svc {
/// Attempts to locks a mutex
Result ArbitrateLock(Core::System& system, Handle thread_handle, u64 address, u32 tag) {
LOG_TRACE(Kernel_SVC, "called thread_handle=0x{:08X}, address=0x{:X}, tag=0x{:08X}",
thread_handle, address, tag);
// Validate the input address.
R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
R_UNLESS(Common::IsAligned(address, sizeof(u32)), ResultInvalidAddress);
R_RETURN(KConditionVariable::WaitForAddress(system.Kernel(), thread_handle, address, tag));
}
/// Unlock a mutex
Result ArbitrateUnlock(Core::System& system, u64 address) {
LOG_TRACE(Kernel_SVC, "called address=0x{:X}", address);
// Validate the input address.
R_UNLESS(!IsKernelAddress(address), ResultInvalidCurrentMemory);
R_UNLESS(Common::IsAligned(address, sizeof(u32)), ResultInvalidAddress);
R_RETURN(KConditionVariable::SignalToAddress(system.Kernel(), address));
}
Result ArbitrateLock64(Core::System& system, Handle thread_handle, uint64_t address, uint32_t tag) {
R_RETURN(ArbitrateLock(system, thread_handle, address, tag));
}
Result ArbitrateUnlock64(Core::System& system, uint64_t address) {
R_RETURN(ArbitrateUnlock(system, address));
}
Result ArbitrateLock64From32(Core::System& system, Handle thread_handle, uint32_t address,
uint32_t tag) {
R_RETURN(ArbitrateLock(system, thread_handle, address, tag));
}
Result ArbitrateUnlock64From32(Core::System& system, uint32_t address) {
R_RETURN(ArbitrateUnlock(system, address));
}
} // namespace Kernel::Svc
|
