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synced 2024-08-23 10:40:41 +02:00
DSP_DSP: Updated interrupt implementation
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@ -4,6 +4,7 @@
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#include "audio_core/audio_core.h"
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#include "audio_core/hle/dsp.h"
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#include "audio_core/hle/pipe.h"
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#include "core/core_timing.h"
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#include "core/hle/kernel/vm_manager.h"
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@ -17,10 +18,8 @@ static constexpr u64 audio_frame_ticks = 1310252ull; ///< Units: ARM11 cycles
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static void AudioTickCallback(u64 /*userdata*/, int cycles_late) {
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if (DSP::HLE::Tick()) {
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// HACK: We're not signaling the interrups when they should be, but just firing them all off together.
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// It should be only (interrupt_id = 2, channel_id = 2) that's signalled here.
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// TODO(merry): Understand when the other interrupts are fired.
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DSP_DSP::SignalAllInterrupts();
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// TODO(merry): Signal all the other interrupts as appropriate.
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DSP_DSP::SignalPipeInterrupt(DSP::HLE::DspPipe::Audio);
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}
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// Reschedule recurrent event
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@ -12,6 +12,8 @@
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "core/hle/service/dsp_dsp.h"
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namespace DSP {
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namespace HLE {
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@ -97,6 +99,8 @@ static void AudioPipeWriteStructAddresses() {
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for (u16 addr : struct_addresses) {
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WriteU16(DspPipe::Audio, addr);
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}
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// Signal that we have data on this pipe.
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DSP_DSP::SignalPipeInterrupt(DspPipe::Audio);
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}
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void PipeWrite(DspPipe pipe_number, const std::vector<u8>& buffer) {
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@ -2,6 +2,7 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <cinttypes>
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#include "audio_core/hle/pipe.h"
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@ -12,6 +13,8 @@
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#include "core/hle/kernel/event.h"
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#include "core/hle/service/dsp_dsp.h"
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using DspPipe = DSP::HLE::DspPipe;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace DSP_DSP
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@ -19,29 +22,71 @@ namespace DSP_DSP {
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static Kernel::SharedPtr<Kernel::Event> semaphore_event;
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struct PairHash {
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template <typename T, typename U>
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std::size_t operator()(const std::pair<T, U> &x) const {
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// TODO(yuriks): Replace with better hash combining function.
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return std::hash<T>()(x.first) ^ std::hash<U>()(x.second);
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/// There are three types of interrupts
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enum class InterruptType {
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Zero, One, Pipe
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};
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constexpr size_t NUM_INTERRUPT_TYPE = 3;
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class InterruptEvents final {
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public:
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void Signal(InterruptType type, DspPipe pipe) {
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Kernel::SharedPtr<Kernel::Event>& event = Get(type, pipe);
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if (event) {
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event->Signal();
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}
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}
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Kernel::SharedPtr<Kernel::Event>& Get(InterruptType type, DspPipe dsp_pipe) {
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switch (type) {
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case InterruptType::Zero:
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return zero;
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case InterruptType::One:
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return one;
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case InterruptType::Pipe: {
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const size_t pipe_index = static_cast<size_t>(dsp_pipe);
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ASSERT(pipe_index < DSP::HLE::NUM_DSP_PIPE);
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return pipe[pipe_index];
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}
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}
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UNREACHABLE_MSG("Invalid interrupt type = %zu", static_cast<size_t>(type));
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}
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bool HasTooManyEventsRegistered() const {
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// Actual service implementation only has 6 'slots' for interrupts.
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constexpr size_t max_number_of_interrupt_events = 6;
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size_t number = std::count_if(pipe.begin(), pipe.end(), [](const auto& evt) {
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return evt != nullptr;
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});
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if (zero != nullptr)
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number++;
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if (one != nullptr)
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number++;
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return number >= max_number_of_interrupt_events;
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}
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private:
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/// Currently unknown purpose
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Kernel::SharedPtr<Kernel::Event> zero = nullptr;
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/// Currently unknown purpose
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Kernel::SharedPtr<Kernel::Event> one = nullptr;
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/// Each DSP pipe has an associated interrupt
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std::array<Kernel::SharedPtr<Kernel::Event>, DSP::HLE::NUM_DSP_PIPE> pipe = {{}};
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};
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/// Map of (audio interrupt number, channel number) to Kernel::Events. See: RegisterInterruptEvents
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static std::unordered_map<std::pair<u32, u32>, Kernel::SharedPtr<Kernel::Event>, PairHash> interrupt_events;
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static InterruptEvents interrupt_events;
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// DSP Interrupts:
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// Interrupt #2 occurs every frame tick. Userland programs normally have a thread that's waiting
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// for an interrupt event. Immediately after this interrupt event, userland normally updates the
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// state in the next region and increments the relevant frame counter by two.
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void SignalAllInterrupts() {
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// HACK: The other interrupts have currently unknown purpose, we trigger them each tick in any case.
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for (auto& interrupt_event : interrupt_events)
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interrupt_event.second->Signal();
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}
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void SignalInterrupt(u32 interrupt, u32 channel) {
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interrupt_events[std::make_pair(interrupt, channel)]->Signal();
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// The audio-pipe interrupt occurs every frame tick. Userland programs normally have a thread
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// that's waiting for an interrupt event. Immediately after this interrupt event, userland
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// normally updates the state in the next region and increments the relevant frame counter by
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// two.
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void SignalPipeInterrupt(DspPipe pipe) {
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interrupt_events.Signal(InterruptType::Pipe, pipe);
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}
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/**
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@ -147,8 +192,8 @@ static void FlushDataCache(Service::Interface* self) {
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/**
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* DSP_DSP::RegisterInterruptEvents service function
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* Inputs:
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* 1 : Interrupt Number
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* 2 : Channel Number
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* 1 : Interrupt Type
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* 2 : Pipe Number
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* 4 : Interrupt event handle
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* Outputs:
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* 1 : Result of function, 0 on success, otherwise error code
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@ -156,23 +201,40 @@ static void FlushDataCache(Service::Interface* self) {
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static void RegisterInterruptEvents(Service::Interface* self) {
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u32* cmd_buff = Kernel::GetCommandBuffer();
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u32 interrupt = cmd_buff[1];
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u32 channel = cmd_buff[2];
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u32 type_index = cmd_buff[1];
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u32 pipe_index = cmd_buff[2];
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u32 event_handle = cmd_buff[4];
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ASSERT_MSG(type_index < NUM_INTERRUPT_TYPE && pipe_index < DSP::HLE::NUM_DSP_PIPE,
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"Invalid type or pipe: type = %u, pipe = %u", type_index, pipe_index);
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InterruptType type = static_cast<InterruptType>(cmd_buff[1]);
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DspPipe pipe = static_cast<DspPipe>(cmd_buff[2]);
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cmd_buff[0] = IPC::MakeHeader(0x15, 1, 0);
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if (event_handle) {
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auto evt = Kernel::g_handle_table.Get<Kernel::Event>(cmd_buff[4]);
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if (evt) {
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interrupt_events[std::make_pair(interrupt, channel)] = evt;
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cmd_buff[1] = RESULT_SUCCESS.raw;
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LOG_INFO(Service_DSP, "Registered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
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} else {
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LOG_CRITICAL(Service_DSP, "Invalid event handle! interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
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ASSERT(false); // This should really be handled at a IPC translation layer.
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if (!evt) {
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LOG_INFO(Service_DSP, "Invalid event handle! type=%u, pipe=%u, event_handle=0x%08X", type_index, pipe_index, event_handle);
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ASSERT(false); // TODO: This should really be handled at an IPC translation layer.
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}
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if (interrupt_events.HasTooManyEventsRegistered()) {
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LOG_INFO(Service_DSP, "Ran out of space to register interrupts (Attempted to register type=%u, pipe=%u, event_handle=0x%08X)",
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type_index, pipe_index, event_handle);
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cmd_buff[1] = ResultCode(ErrorDescription::InvalidResultValue, ErrorModule::DSP, ErrorSummary::OutOfResource, ErrorLevel::Status).raw;
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return;
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}
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interrupt_events.Get(type, pipe) = evt;
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LOG_INFO(Service_DSP, "Registered type=%u, pipe=%u, event_handle=0x%08X", type_index, pipe_index, event_handle);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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} else {
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interrupt_events.erase(std::make_pair(interrupt, channel));
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LOG_INFO(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X", interrupt, channel, event_handle);
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interrupt_events.Get(type, pipe) = nullptr;
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LOG_INFO(Service_DSP, "Unregistered interrupt=%u, channel=%u, event_handle=0x%08X", type_index, pipe_index, event_handle);
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cmd_buff[1] = RESULT_SUCCESS.raw;
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}
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}
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@ -194,7 +256,7 @@ static void SetSemaphore(Service::Interface* self) {
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/**
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* DSP_DSP::WriteProcessPipe service function
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* Inputs:
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* 1 : Channel
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* 1 : Pipe Number
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* 2 : Size
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* 3 : (size << 14) | 0x402
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* 4 : Buffer
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@ -457,13 +519,14 @@ const Interface::FunctionInfo FunctionTable[] = {
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Interface::Interface() {
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semaphore_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "DSP_DSP::semaphore_event");
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interrupt_events = {};
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Register(FunctionTable);
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}
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Interface::~Interface() {
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semaphore_event = nullptr;
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interrupt_events.clear();
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interrupt_events = {};
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}
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} // namespace
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@ -8,6 +8,12 @@
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#include "core/hle/service/service.h"
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namespace DSP {
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namespace HLE {
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enum class DspPipe;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// Namespace DSP_DSP
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@ -23,15 +29,10 @@ public:
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}
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};
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/// Signal all audio related interrupts.
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void SignalAllInterrupts();
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/**
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* Signal a specific audio related interrupt based on interrupt id and channel id.
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* @param interrupt_id The interrupt id
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* @param channel_id The channel id
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* The significance of various values of interrupt_id and channel_id is not yet known.
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* Signal a specific DSP related interrupt of type == InterruptType::Pipe, pipe == pipe.
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* @param pipe The DSP pipe for which to signal an interrupt for.
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*/
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void SignalInterrupt(u32 interrupt_id, u32 channel_id);
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void SignalPipeInterrupt(DSP::HLE::DspPipe pipe);
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} // namespace
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} // namespace DSP_DSP
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