diff options
| author | bunnei <bunneidev@gmail.com> | 2021-12-29 21:40:38 -0800 |
|---|---|---|
| committer | bunnei <bunneidev@gmail.com> | 2021-12-30 15:50:45 -0800 |
| commit | 3a89723d97b8e646cde569030057777813f4371c (patch) | |
| tree | c08f00b1ebb21c3652f0e23ab28fe06c4678aa42 /src/core/hle/kernel/svc.cpp | |
| parent | 5e5827190374946cc906da3a5d2aa586a9721ba0 (diff) | |
core: hle: kernel: Implement thread pinning.
- We largely had the mechanics in place for thread pinning, this change hooks these up.
- Validated with tests https://github.com/Atmosphere-NX/Atmosphere/blob/master/tests/TestSvc/source/test_thread_pinning.cpp.
Diffstat (limited to 'src/core/hle/kernel/svc.cpp')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 63e2dff19f..250ef9042d 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -2027,6 +2027,25 @@ static ResultCode SignalToAddress(Core::System& system, VAddr address, Svc::Sign count); } +static void SynchronizePreemptionState(Core::System& system) { + auto& kernel = system.Kernel(); + + // Lock the scheduler. + KScopedSchedulerLock sl{kernel}; + + // If the current thread is pinned, unpin it. + KProcess* cur_process = system.Kernel().CurrentProcess(); + const auto core_id = GetCurrentCoreId(kernel); + + if (cur_process->GetPinnedThread(core_id) == GetCurrentThreadPointer(kernel)) { + // Clear the current thread's interrupt flag. + GetCurrentThread(kernel).ClearInterruptFlag(); + + // Unpin the current thread. + cur_process->UnpinCurrentThread(core_id); + } +} + static ResultCode SignalToAddress32(Core::System& system, u32 address, Svc::SignalType signal_type, s32 value, s32 count) { return SignalToAddress(system, address, signal_type, value, count); @@ -2797,7 +2816,7 @@ static const FunctionDef SVC_Table_64[] = { {0x33, SvcWrap64<GetThreadContext>, "GetThreadContext"}, {0x34, SvcWrap64<WaitForAddress>, "WaitForAddress"}, {0x35, SvcWrap64<SignalToAddress>, "SignalToAddress"}, - {0x36, nullptr, "SynchronizePreemptionState"}, + {0x36, SvcWrap64<SynchronizePreemptionState>, "SynchronizePreemptionState"}, {0x37, nullptr, "Unknown"}, {0x38, nullptr, "Unknown"}, {0x39, nullptr, "Unknown"}, |