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Merge pull request #3324 from Subv/gspgpu 

Services: Keep track of per-session data in GSPGPU
This commit is contained in:
Weiyi Wang 2018-01-11 20:03:46 +02:00 committed by GitHub
parent 2e41810608 34685f48dc
commit 9b647d459b
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3 changed files with 152 additions and 58 deletions
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4
src/core/hle/kernel/hle_ipc.h
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@ -59,7 +59,9 @@ public:
/// Empty placeholder structure for services with no per-session data. The session data classes
/// in each service must inherit from this.
struct SessionDataBase {};
struct SessionDataBase {
virtual ~SessionDataBase() = default;
};
protected:
/// Creates the storage for the session data of the service.

167
src/core/hle/service/gsp/gsp_gpu.cpp
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@ -9,7 +9,6 @@
#include "core/core.h"
#include "core/hle/ipc.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/shared_memory.h"
#include "core/hle/result.h"
@ -51,6 +50,20 @@ constexpr ResultCode ERR_REGS_INVALID_SIZE(ErrorDescription::InvalidSize, ErrorM
ErrorSummary::InvalidArgument,
ErrorLevel::Usage); // 0xE0E02BEC
/// Maximum number of threads that can be registered at the same time in the GSP module.
constexpr u32 MaxGSPThreads = 4;
/// Thread ids currently in use by the sessions connected to the GSPGPU service.
static std::array<bool, MaxGSPThreads> used_thread_ids = {false, false, false, false};
static u32 GetUnusedThreadId() {
for (u32 id = 0; id < MaxGSPThreads; ++id) {
if (!used_thread_ids[id])
return id;
}
ASSERT_MSG(false, "All GSP threads are in use");
}
/// Gets a pointer to a thread command buffer in GSP shared memory
static inline u8* GetCommandBuffer(Kernel::SharedPtr<Kernel::SharedMemory> shared_memory,
u32 thread_id) {
@ -319,12 +332,16 @@ void GSP_GPU::RegisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x13, 1, 2);
u32 flags = rp.Pop<u32>();
interrupt_event = rp.PopObject<Kernel::Event>();
auto interrupt_event = rp.PopObject<Kernel::Event>();
// TODO(mailwl): return right error code instead assert
ASSERT_MSG((interrupt_event != nullptr), "handle is not valid!");
interrupt_event->name = "GSP_GSP_GPU::interrupt_event";
SessionData* session_data = GetSessionData(ctx.Session());
session_data->interrupt_event = std::move(interrupt_event);
session_data->registered = true;
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
if (first_initialization) {
@ -335,25 +352,60 @@ void GSP_GPU::RegisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
rb.Push(RESULT_SUCCESS);
}
rb.Push(thread_id);
rb.Push(session_data->thread_id);
rb.PushCopyObjects(shared_memory);
thread_id++;
interrupt_event->Signal(); // TODO(bunnei): Is this correct?
LOG_WARNING(Service_GSP, "called, flags=0x%08X", flags);
LOG_DEBUG(Service_GSP, "called, flags=0x%08X", flags);
}
void GSP_GPU::UnregisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x14, 0, 0);
thread_id = 0;
interrupt_event = nullptr;
SessionData* session_data = GetSessionData(ctx.Session());
session_data->interrupt_event = nullptr;
session_data->registered = false;
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
LOG_WARNING(Service_GSP, "(STUBBED) called");
LOG_DEBUG(Service_GSP, "called");
}
void GSP_GPU::SignalInterruptForThread(InterruptId interrupt_id, u32 thread_id) {
SessionData* session_data = FindRegisteredThreadData(thread_id);
if (session_data == nullptr)
return;
auto interrupt_event = session_data->interrupt_event;
if (interrupt_event == nullptr) {
LOG_WARNING(Service_GSP, "cannot synchronize until GSP event has been created!");
return;
}
InterruptRelayQueue* interrupt_relay_queue = GetInterruptRelayQueue(shared_memory, thread_id);
u8 next = interrupt_relay_queue->index;
next += interrupt_relay_queue->number_interrupts;
next = next % 0x34; // 0x34 is the number of interrupt slots
interrupt_relay_queue->number_interrupts += 1;
interrupt_relay_queue->slot[next] = interrupt_id;
interrupt_relay_queue->error_code = 0x0; // No error
// Update framebuffer information if requested
// TODO(yuriks): Confirm where this code should be called. It is definitely updated without
// executing any GSP commands, only waiting on the event.
// TODO(Subv): The real GSP module triggers PDC0 after updating both the top and bottom
// screen, it is currently unknown what PDC1 does.
int screen_id =
(interrupt_id == InterruptId::PDC0) ? 0 : (interrupt_id == InterruptId::PDC1) ? 1 : -1;
if (screen_id != -1) {
FrameBufferUpdate* info = GetFrameBufferInfo(thread_id, screen_id);
if (info->is_dirty) {
GSP::SetBufferSwap(screen_id, info->framebuffer_info[info->index]);
info->is_dirty.Assign(false);
}
}
interrupt_event->Signal();
}
/**
@ -363,43 +415,26 @@ void GSP_GPU::UnregisterInterruptRelayQueue(Kernel::HLERequestContext& ctx) {
* @todo This probably does not belong in the GSP module, instead move to video_core
*/
void GSP_GPU::SignalInterrupt(InterruptId interrupt_id) {
if (!gpu_right_acquired) {
return;
}
if (nullptr == interrupt_event) {
LOG_WARNING(Service_GSP, "cannot synchronize until GSP event has been created!");
return;
}
if (nullptr == shared_memory) {
LOG_WARNING(Service_GSP, "cannot synchronize until GSP shared memory has been created!");
return;
}
for (int thread_id = 0; thread_id < 0x4; ++thread_id) {
InterruptRelayQueue* interrupt_relay_queue =
GetInterruptRelayQueue(shared_memory, thread_id);
u8 next = interrupt_relay_queue->index;
next += interrupt_relay_queue->number_interrupts;
next = next % 0x34; // 0x34 is the number of interrupt slots
interrupt_relay_queue->number_interrupts += 1;
interrupt_relay_queue->slot[next] = interrupt_id;
interrupt_relay_queue->error_code = 0x0; // No error
// Update framebuffer information if requested
// TODO(yuriks): Confirm where this code should be called. It is definitely updated without
// executing any GSP commands, only waiting on the event.
int screen_id =
(interrupt_id == InterruptId::PDC0) ? 0 : (interrupt_id == InterruptId::PDC1) ? 1 : -1;
if (screen_id != -1) {
FrameBufferUpdate* info = GetFrameBufferInfo(thread_id, screen_id);
if (info->is_dirty) {
GSP::SetBufferSwap(screen_id, info->framebuffer_info[info->index]);
info->is_dirty.Assign(false);
}
// The PDC0 and PDC1 interrupts are fired even if the GPU right hasn't been acquired.
// Normal interrupts are only signaled for the active thread (ie, the thread that has the GPU
// right), but the PDC0/1 interrupts are signaled for every registered thread.
if (interrupt_id == InterruptId::PDC0 || interrupt_id == InterruptId::PDC1) {
for (u32 thread_id = 0; thread_id < MaxGSPThreads; ++thread_id) {
SignalInterruptForThread(interrupt_id, thread_id);
}
return;
}
interrupt_event->Signal();
// For normal interrupts, don't do anything if no process has acquired the GPU right.
if (active_thread_id == -1)
return;
SignalInterruptForThread(interrupt_id, active_thread_id);
}
MICROPROFILE_DEFINE(GPU_GSP_DMA, "GPU", "GSP DMA", MP_RGB(100, 0, 255));
@ -622,18 +657,34 @@ void GSP_GPU::AcquireRight(Kernel::HLERequestContext& ctx) {
u32 flag = rp.Pop<u32>();
auto process = rp.PopObject<Kernel::Process>();
gpu_right_acquired = true;
SessionData* session_data = GetSessionData(ctx.Session());
LOG_WARNING(Service_GSP, "called flag=%08X process=%u thread_id=%u", flag, process->process_id,
session_data->thread_id);
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
LOG_WARNING(Service_GSP, "called flag=%08X process=%u", flag, process->process_id);
if (active_thread_id == session_data->thread_id) {
rb.Push(ResultCode(ErrorDescription::AlreadyDone, ErrorModule::GX, ErrorSummary::Success,
ErrorLevel::Success));
return;
}
// TODO(Subv): This case should put the caller thread to sleep until the right is released.
ASSERT_MSG(active_thread_id == -1, "GPU right has already been acquired");
active_thread_id = session_data->thread_id;
rb.Push(RESULT_SUCCESS);
}
void GSP_GPU::ReleaseRight(Kernel::HLERequestContext& ctx) {
IPC::RequestParser rp(ctx, 0x17, 0, 0);
gpu_right_acquired = false;
SessionData* session_data = GetSessionData(ctx.Session());
ASSERT_MSG(active_thread_id == session_data->thread_id,
"Wrong thread tried to release GPU right");
active_thread_id = -1;
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
rb.Push(RESULT_SUCCESS);
@ -655,6 +706,17 @@ void GSP_GPU::StoreDataCache(Kernel::HLERequestContext& ctx) {
size, process->process_id);
}
SessionData* GSP_GPU::FindRegisteredThreadData(u32 thread_id) {
for (auto& session_info : connected_sessions) {
SessionData* data = static_cast<SessionData*>(session_info.data.get());
if (!data->registered)
continue;
if (data->thread_id == thread_id)
return data;
}
return nullptr;
}
GSP_GPU::GSP_GPU() : ServiceFramework("gsp::Gpu", 2) {
static const FunctionInfo functions[] = {
{0x00010082, &GSP_GPU::WriteHWRegs, "WriteHWRegs"},
@ -691,17 +753,26 @@ GSP_GPU::GSP_GPU() : ServiceFramework("gsp::Gpu", 2) {
};
RegisterHandlers(functions);
interrupt_event = nullptr;
using Kernel::MemoryPermission;
shared_memory = Kernel::SharedMemory::Create(nullptr, 0x1000, MemoryPermission::ReadWrite,
MemoryPermission::ReadWrite, 0,
Kernel::MemoryRegion::BASE, "GSP:SharedMemory");
thread_id = 0;
gpu_right_acquired = false;
first_initialization = true;
};
SessionData::SessionData() {
// Assign a new thread id to this session when it connects. Note: In the real GSP service this
// is done through a real thread (svcCreateThread) but we have to simulate it since our HLE
// services don't have threads.
thread_id = GetUnusedThreadId();
used_thread_ids[thread_id] = true;
}
SessionData::~SessionData() {
// Free the thread id slot so that other sessions can use it.
used_thread_ids[thread_id] = false;
}
} // namespace GSP
} // namespace Service

39
src/core/hle/service/gsp/gsp_gpu.h
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@ -8,12 +8,12 @@
#include <string>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "core/hle/kernel/event.h"
#include "core/hle/kernel/hle_ipc.h"
#include "core/hle/result.h"
#include "core/hle/service/service.h"
namespace Kernel {
class Event;
class SharedMemory;
} // namespace Kernel
@ -179,7 +179,19 @@ struct CommandBuffer {
};
static_assert(sizeof(CommandBuffer) == 0x200, "CommandBuffer struct has incorrect size");
class GSP_GPU final : public ServiceFramework<GSP_GPU> {
struct SessionData : public Kernel::SessionRequestHandler::SessionDataBase {
SessionData();
~SessionData();
/// Event triggered when GSP interrupt has been signalled
Kernel::SharedPtr<Kernel::Event> interrupt_event;
/// Thread index into interrupt relay queue
u32 thread_id;
/// Whether RegisterInterruptRelayQueue was called for this session
bool registered = false;
};
class GSP_GPU final : public ServiceFramework<GSP_GPU, SessionData> {
public:
GSP_GPU();
~GSP_GPU() = default;
@ -201,6 +213,14 @@ public:
FrameBufferUpdate* GetFrameBufferInfo(u32 thread_id, u32 screen_index);
private:
/**
* Signals that the specified interrupt type has occurred to userland code for the specified GSP
* thread id.
* @param interrupt_id ID of interrupt that is being signalled.
* @param thread_id GSP thread that will receive the interrupt.
*/
void SignalInterruptForThread(InterruptId interrupt_id, u32 thread_id);
/**
* GSP_GPU::WriteHWRegs service function
*
@ -351,14 +371,15 @@ private:
*/
void StoreDataCache(Kernel::HLERequestContext& ctx);
/// Event triggered when GSP interrupt has been signalled
Kernel::SharedPtr<Kernel::Event> interrupt_event;
/// GSP shared memoryings
Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;
/// Thread index into interrupt relay queue
u32 thread_id = 0;
/// Returns the session data for the specified registered thread id, or nullptr if not found.
SessionData* FindRegisteredThreadData(u32 thread_id);
/// GSP shared memory
Kernel::SharedPtr<Kernel::SharedMemory> shared_memory;
/// Thread id that currently has GPU rights or -1 if none.
int active_thread_id = -1;
bool gpu_right_acquired = false;
bool first_initialization = true;
};