From ff6db69c6052f674265c453932a3dc7637c46412 Mon Sep 17 00:00:00 2001 From: MerryMage Date: Sun, 24 Apr 2016 10:21:10 +0100 Subject: DSP_DSP: Updated interrupt implementation --- src/core/hle/service/dsp_dsp.cpp | 129 +++++++++++++++++++++++++++++---------- 1 file changed, 96 insertions(+), 33 deletions(-) (limited to 'src/core/hle/service/dsp_dsp.cpp') diff --git a/src/core/hle/service/dsp_dsp.cpp b/src/core/hle/service/dsp_dsp.cpp index 751cb3d61..e9ef50f86 100644 --- a/src/core/hle/service/dsp_dsp.cpp +++ b/src/core/hle/service/dsp_dsp.cpp @@ -2,6 +2,7 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. +#include #include #include "audio_core/hle/pipe.h" @@ -12,6 +13,8 @@ #include "core/hle/kernel/event.h" #include "core/hle/service/dsp_dsp.h" +using DspPipe = DSP::HLE::DspPipe; + //////////////////////////////////////////////////////////////////////////////////////////////////// // Namespace DSP_DSP @@ -19,29 +22,71 @@ namespace DSP_DSP { static Kernel::SharedPtr semaphore_event; -struct PairHash { - template - std::size_t operator()(const std::pair &x) const { - // TODO(yuriks): Replace with better hash combining function. - return std::hash()(x.first) ^ std::hash()(x.second); +/// There are three types of interrupts +enum class InterruptType { + Zero, One, Pipe +}; +constexpr size_t NUM_INTERRUPT_TYPE = 3; + +class InterruptEvents final { +public: + void Signal(InterruptType type, DspPipe pipe) { + Kernel::SharedPtr& event = Get(type, pipe); + if (event) { + event->Signal(); + } + } + + Kernel::SharedPtr& Get(InterruptType type, DspPipe dsp_pipe) { + switch (type) { + case InterruptType::Zero: + return zero; + case InterruptType::One: + return one; + case InterruptType::Pipe: { + const size_t pipe_index = static_cast(dsp_pipe); + ASSERT(pipe_index < DSP::HLE::NUM_DSP_PIPE); + return pipe[pipe_index]; + } + } + + UNREACHABLE_MSG("Invalid interrupt type = %zu", static_cast(type)); + } + + bool HasTooManyEventsRegistered() const { + // Actual service implementation only has 6 'slots' for interrupts. + constexpr size_t max_number_of_interrupt_events = 6; + + size_t number = std::count_if(pipe.begin(), pipe.end(), [](const auto& evt) { + return evt != nullptr; + }); + + if (zero != nullptr) + number++; + if (one != nullptr) + number++; + + return number >= max_number_of_interrupt_events; } + +private: + /// Currently unknown purpose + Kernel::SharedPtr zero = nullptr; + /// Currently unknown purpose + Kernel::SharedPtr one = nullptr; + /// Each DSP pipe has an associated interrupt + std::array, DSP::HLE::NUM_DSP_PIPE> pipe = {{}}; }; -/// Map of (audio interrupt number, channel number) to Kernel::Events. See: RegisterInterruptEvents -static std::unordered_map, Kernel::SharedPtr, PairHash> interrupt_events; +static InterruptEvents interrupt_events; // DSP Interrupts: -// Interrupt #2 occurs every frame tick. Userland programs normally have a thread that's waiting -// for an interrupt event. Immediately after this interrupt event, userland normally updates the -// state in the next region and increments the relevant frame counter by two. -void SignalAllInterrupts() { - // HACK: The other interrupts have currently unknown purpose, we trigger them each tick in any case. - for (auto& interrupt_event : interrupt_events) - interrupt_event.second->Signal(); -} - -void SignalInterrupt(u32 interrupt, u32 channel) { - interrupt_events[std::make_pair(interrupt, channel)]->Signal(); +// The audio-pipe interrupt occurs every frame tick. Userland programs normally have a thread +// that's waiting for an interrupt event. Immediately after this interrupt event, userland +// normally updates the state in the next region and increments the relevant frame counter by +// two. +void SignalPipeInterrupt(DspPipe pipe) { + interrupt_events.Signal(InterruptType::Pipe, pipe); } /** @@ -147,8 +192,8 @@ static void FlushDataCache(Service::Interface* self) { /** * DSP_DSP::RegisterInterruptEvents service function * Inputs: - * 1 : Interrupt Number - * 2 : Channel Number + * 1 : Interrupt Type + * 2 : Pipe Number * 4 : Interrupt event handle * Outputs: * 1 : Result of function, 0 on success, otherwise error code @@ -156,23 +201,40 @@ static void FlushDataCache(Service::Interface* self) { static void RegisterInterruptEvents(Service::Interface* self) { u32* cmd_buff = Kernel::GetCommandBuffer(); - u32 interrupt = cmd_buff[1]; - u32 channel = cmd_buff[2]; + u32 type_index = cmd_buff[1]; + u32 pipe_index = cmd_buff[2]; u32 event_handle = cmd_buff[4]; + ASSERT_MSG(type_index < NUM_INTERRUPT_TYPE && pipe_index < DSP::HLE::NUM_DSP_PIPE, + "Invalid type or pipe: type = %u, pipe = %u", type_index, pipe_index); + + InterruptType type = static_cast(cmd_buff[1]); + DspPipe pipe = static_cast(cmd_buff[2]); + + cmd_buff[0] = IPC::MakeHeader(0x15, 1, 0); + if (event_handle) { auto evt = Kernel::g_handle_table.Get(cmd_buff[4]); - if (evt) { - interrupt_events[std::make_pair(interrupt, channel)] = evt; - cmd_buff[1] = RESULT_SUCCESS.raw; - LOG_INFO(Service_DSP, "Registered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle); - } else { - LOG_CRITICAL(Service_DSP, "Invalid event handle! interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle); - ASSERT(false); // This should really be handled at a IPC translation layer. + + if (!evt) { + LOG_INFO(Service_DSP, "Invalid event handle! type=%u, pipe=%u, event_handle=0x%08X", type_index, pipe_index, event_handle); + ASSERT(false); // TODO: This should really be handled at an IPC translation layer. + } + + if (interrupt_events.HasTooManyEventsRegistered()) { + LOG_INFO(Service_DSP, "Ran out of space to register interrupts (Attempted to register type=%u, pipe=%u, event_handle=0x%08X)", + type_index, pipe_index, event_handle); + cmd_buff[1] = ResultCode(ErrorDescription::InvalidResultValue, ErrorModule::DSP, ErrorSummary::OutOfResource, ErrorLevel::Status).raw; + return; } + + interrupt_events.Get(type, pipe) = evt; + LOG_INFO(Service_DSP, "Registered type=%u, pipe=%u, event_handle=0x%08X", type_index, pipe_index, event_handle); + cmd_buff[1] = RESULT_SUCCESS.raw; } else { - interrupt_events.erase(std::make_pair(interrupt, channel)); - LOG_INFO(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle); + interrupt_events.Get(type, pipe) = nullptr; + LOG_INFO(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X", type_index, pipe_index, event_handle); + cmd_buff[1] = RESULT_SUCCESS.raw; } } @@ -194,7 +256,7 @@ static void SetSemaphore(Service::Interface* self) { /** * DSP_DSP::WriteProcessPipe service function * Inputs: - * 1 : Channel + * 1 : Pipe Number * 2 : Size * 3 : (size << 14) | 0x402 * 4 : Buffer @@ -457,13 +519,14 @@ const Interface::FunctionInfo FunctionTable[] = { Interface::Interface() { semaphore_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "DSP_DSP::semaphore_event"); + interrupt_events = {}; Register(FunctionTable); } Interface::~Interface() { semaphore_event = nullptr; - interrupt_events.clear(); + interrupt_events = {}; } } // namespace -- cgit v1.2.3