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DSP_DSP: Updated interrupt implementation

This commit is contained in:
MerryMage 2016-04-24 10:21:10 +01:00
parent 555907ce8d
commit ff6db69c60
4 changed files with 113 additions and 46 deletions
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7
src/audio_core/audio_core.cpp
View File

@ -4,6 +4,7 @@
#include "audio_core/audio_core.h"
#include "audio_core/hle/dsp.h"
#include "audio_core/hle/pipe.h"
#include "core/core_timing.h"
#include "core/hle/kernel/vm_manager.h"
@ -17,10 +18,8 @@ static constexpr u64 audio_frame_ticks = 1310252ull; ///< Units: ARM11 cycles
static void AudioTickCallback(u64 /*userdata*/, int cycles_late) {
if (DSP::HLE::Tick()) {
// HACK: We're not signaling the interrups when they should be, but just firing them all off together.
// It should be only (interrupt_id = 2, channel_id = 2) that's signalled here.
// TODO(merry): Understand when the other interrupts are fired.
DSP_DSP::SignalAllInterrupts();
// TODO(merry): Signal all the other interrupts as appropriate.
DSP_DSP::SignalPipeInterrupt(DSP::HLE::DspPipe::Audio);
}
// Reschedule recurrent event

4
src/audio_core/hle/pipe.cpp
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@ -12,6 +12,8 @@
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/hle/service/dsp_dsp.h"
namespace DSP {
namespace HLE {
@ -97,6 +99,8 @@ static void AudioPipeWriteStructAddresses() {
for (u16 addr : struct_addresses) {
WriteU16(DspPipe::Audio, addr);
}
// Signal that we have data on this pipe.
DSP_DSP::SignalPipeInterrupt(DspPipe::Audio);
}
void PipeWrite(DspPipe pipe_number, const std::vector<u8>& buffer) {

129
src/core/hle/service/dsp_dsp.cpp
View File

@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cinttypes>
#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<Kernel::Event> semaphore_event;
struct PairHash {
template <typename T, typename U>
std::size_t operator()(const std::pair<T, U> &x) const {
// TODO(yuriks): Replace with better hash combining function.
return std::hash<T>()(x.first) ^ std::hash<U>()(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<Kernel::Event>& event = Get(type, pipe);
if (event) {
event->Signal();
}
}
Kernel::SharedPtr<Kernel::Event>& 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<size_t>(dsp_pipe);
ASSERT(pipe_index < DSP::HLE::NUM_DSP_PIPE);
return pipe[pipe_index];
}
}
UNREACHABLE_MSG("Invalid interrupt type = %zu", static_cast<size_t>(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<Kernel::Event> zero = nullptr;
/// Currently unknown purpose
Kernel::SharedPtr<Kernel::Event> one = nullptr;
/// Each DSP pipe has an associated interrupt
std::array<Kernel::SharedPtr<Kernel::Event>, DSP::HLE::NUM_DSP_PIPE> pipe = {{}};
};
/// Map of (audio interrupt number, channel number) to Kernel::Events. See: RegisterInterruptEvents
static std::unordered_map<std::pair<u32, u32>, Kernel::SharedPtr<Kernel::Event>, 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<InterruptType>(cmd_buff[1]);
DspPipe pipe = static_cast<DspPipe>(cmd_buff[2]);
cmd_buff[0] = IPC::MakeHeader(0x15, 1, 0);
if (event_handle) {
auto evt = Kernel::g_handle_table.Get<Kernel::Event>(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

19
src/core/hle/service/dsp_dsp.h
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@ -8,6 +8,12 @@
#include "core/hle/service/service.h"
namespace DSP {
namespace HLE {
enum class DspPipe;
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
// Namespace DSP_DSP
@ -23,15 +29,10 @@ public:
}
};
/// Signal all audio related interrupts.
void SignalAllInterrupts();
/**
* Signal a specific audio related interrupt based on interrupt id and channel id.
* @param interrupt_id The interrupt id
* @param channel_id The channel id
* The significance of various values of interrupt_id and channel_id is not yet known.
* Signal a specific DSP related interrupt of type == InterruptType::Pipe, pipe == pipe.
* @param pipe The DSP pipe for which to signal an interrupt for.
*/
void SignalInterrupt(u32 interrupt_id, u32 channel_id);
void SignalPipeInterrupt(DSP::HLE::DspPipe pipe);
} // namespace
} // namespace DSP_DSP