kernel: Synchronize
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9252ad4e10
commit
b94e576653
3 changed files with 49 additions and 33 deletions
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@ -338,6 +338,15 @@ public:
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return m_parent != nullptr;
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return m_parent != nullptr;
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}
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}
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std::span<KSynchronizationObject*> GetSynchronizationObjectBuffer() {
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return m_sync_object_buffer.sync_objects;
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}
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std::span<Handle> GetHandleBuffer() {
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return {m_sync_object_buffer.handles.data() + Svc::ArgumentHandleCountMax,
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Svc::ArgumentHandleCountMax};
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}
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u16 GetUserDisableCount() const;
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u16 GetUserDisableCount() const;
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void SetInterruptFlag();
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void SetInterruptFlag();
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void ClearInterruptFlag();
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void ClearInterruptFlag();
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@ -855,6 +864,7 @@ private:
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u32* m_light_ipc_data{};
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u32* m_light_ipc_data{};
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KProcessAddress m_tls_address{};
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KProcessAddress m_tls_address{};
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KLightLock m_activity_pause_lock;
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KLightLock m_activity_pause_lock;
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SyncObjectBuffer m_sync_object_buffer{};
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s64 m_schedule_count{};
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s64 m_schedule_count{};
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s64 m_last_scheduled_tick{};
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s64 m_last_scheduled_tick{};
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std::array<QueueEntry, Core::Hardware::NUM_CPU_CORES> m_per_core_priority_queue_entry{};
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std::array<QueueEntry, Core::Hardware::NUM_CPU_CORES> m_per_core_priority_queue_entry{};
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@ -38,22 +38,31 @@ Result SendAsyncRequestWithUserBuffer(Core::System& system, Handle* out_event_ha
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Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_addr, s32 num_handles,
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Result ReplyAndReceive(Core::System& system, s32* out_index, uint64_t handles_addr, s32 num_handles,
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Handle reply_target, s64 timeout_ns) {
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Handle reply_target, s64 timeout_ns) {
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// Ensure number of handles is valid.
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R_UNLESS(0 <= num_handles && num_handles <= ArgumentHandleCountMax, ResultOutOfRange);
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// Get the synchronization context.
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auto& kernel = system.Kernel();
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auto& kernel = system.Kernel();
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auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
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auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
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auto objs = GetCurrentThread(kernel).GetSynchronizationObjectBuffer();
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auto handles = GetCurrentThread(kernel).GetHandleBuffer();
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R_UNLESS(0 <= num_handles && num_handles <= ArgumentHandleCountMax, ResultOutOfRange);
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// Copy user handles.
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R_UNLESS(GetCurrentMemory(kernel).IsValidVirtualAddressRange(
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if (num_handles > 0) {
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handles_addr, static_cast<u64>(sizeof(Handle) * num_handles)),
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// Ensure we can try to get the handles.
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ResultInvalidPointer);
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R_UNLESS(GetCurrentMemory(kernel).IsValidVirtualAddressRange(
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handles_addr, static_cast<u64>(sizeof(Handle) * num_handles)),
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ResultInvalidPointer);
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std::array<Handle, Svc::ArgumentHandleCountMax> handles;
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// Get the handles.
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GetCurrentMemory(kernel).ReadBlock(handles_addr, handles.data(), sizeof(Handle) * num_handles);
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GetCurrentMemory(kernel).ReadBlock(handles_addr, handles.data(),
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sizeof(Handle) * num_handles);
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// Convert handle list to object table.
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// Convert the handles to objects.
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std::array<KSynchronizationObject*, Svc::ArgumentHandleCountMax> objs;
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R_UNLESS(handle_table.GetMultipleObjects<KSynchronizationObject>(
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R_UNLESS(handle_table.GetMultipleObjects<KSynchronizationObject>(objs.data(), handles.data(),
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objs.data(), handles.data(), num_handles),
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num_handles),
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ResultInvalidHandle);
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ResultInvalidHandle);
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}
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// Ensure handles are closed when we're done.
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// Ensure handles are closed when we're done.
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SCOPE_EXIT({
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SCOPE_EXIT({
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@ -47,21 +47,35 @@ Result ResetSignal(Core::System& system, Handle handle) {
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R_THROW(ResultInvalidHandle);
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R_THROW(ResultInvalidHandle);
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}
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}
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static Result WaitSynchronization(Core::System& system, int32_t* out_index, const Handle* handles,
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/// Wait for the given handles to synchronize, timeout after the specified nanoseconds
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int32_t num_handles, int64_t timeout_ns) {
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Result WaitSynchronization(Core::System& system, int32_t* out_index, u64 user_handles,
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int32_t num_handles, int64_t timeout_ns) {
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LOG_TRACE(Kernel_SVC, "called user_handles={:#x}, num_handles={}, timeout_ns={}", user_handles,
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num_handles, timeout_ns);
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// Ensure number of handles is valid.
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// Ensure number of handles is valid.
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R_UNLESS(0 <= num_handles && num_handles <= Svc::ArgumentHandleCountMax, ResultOutOfRange);
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R_UNLESS(0 <= num_handles && num_handles <= Svc::ArgumentHandleCountMax, ResultOutOfRange);
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// Get the synchronization context.
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// Get the synchronization context.
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auto& kernel = system.Kernel();
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auto& kernel = system.Kernel();
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auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
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auto& handle_table = GetCurrentProcess(kernel).GetHandleTable();
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std::array<KSynchronizationObject*, Svc::ArgumentHandleCountMax> objs;
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auto objs = GetCurrentThread(kernel).GetSynchronizationObjectBuffer();
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auto handles = GetCurrentThread(kernel).GetHandleBuffer();
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// Copy user handles.
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// Copy user handles.
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if (num_handles > 0) {
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if (num_handles > 0) {
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// Ensure we can try to get the handles.
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R_UNLESS(GetCurrentMemory(kernel).IsValidVirtualAddressRange(
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user_handles, static_cast<u64>(sizeof(Handle) * num_handles)),
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ResultInvalidPointer);
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// Get the handles.
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GetCurrentMemory(kernel).ReadBlock(user_handles, handles.data(),
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sizeof(Handle) * num_handles);
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// Convert the handles to objects.
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// Convert the handles to objects.
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R_UNLESS(handle_table.GetMultipleObjects<KSynchronizationObject>(objs.data(), handles,
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R_UNLESS(handle_table.GetMultipleObjects<KSynchronizationObject>(
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num_handles),
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objs.data(), handles.data(), num_handles),
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ResultInvalidHandle);
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ResultInvalidHandle);
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}
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}
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@ -80,23 +94,6 @@ static Result WaitSynchronization(Core::System& system, int32_t* out_index, cons
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R_RETURN(res);
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R_RETURN(res);
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}
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}
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/// Wait for the given handles to synchronize, timeout after the specified nanoseconds
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Result WaitSynchronization(Core::System& system, int32_t* out_index, u64 user_handles,
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int32_t num_handles, int64_t timeout_ns) {
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LOG_TRACE(Kernel_SVC, "called user_handles={:#x}, num_handles={}, timeout_ns={}", user_handles,
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num_handles, timeout_ns);
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// Ensure number of handles is valid.
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R_UNLESS(0 <= num_handles && num_handles <= Svc::ArgumentHandleCountMax, ResultOutOfRange);
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std::array<Handle, Svc::ArgumentHandleCountMax> handles;
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if (num_handles > 0) {
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GetCurrentMemory(system.Kernel())
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.ReadBlock(user_handles, handles.data(), num_handles * sizeof(Handle));
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}
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R_RETURN(WaitSynchronization(system, out_index, handles.data(), num_handles, timeout_ns));
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}
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/// Resumes a thread waiting on WaitSynchronization
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/// Resumes a thread waiting on WaitSynchronization
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Result CancelSynchronization(Core::System& system, Handle handle) {
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Result CancelSynchronization(Core::System& system, Handle handle) {
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LOG_TRACE(Kernel_SVC, "called handle=0x{:X}", handle);
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LOG_TRACE(Kernel_SVC, "called handle=0x{:X}", handle);
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