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General: Recover Prometheus project from harddrive failure

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This commit: Implements CPU Interrupts, Replaces Cycle Timing for Host 
Timing, Reworks the Kernel's Scheduler, Introduce Idle State and 
Suspended State, Recreates the bootmanager, Initializes Multicore 
system.
This commit is contained in:
Fernando Sahmkow
2020-02-24 22:04:12 -04:00
parent 0ea4a8bcc4
commit e31425df38
57 changed files with 1349 additions and 824 deletions
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232
src/core/hle/kernel/thread.cpp
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@ -9,12 +9,14 @@
#include "common/assert.h"
#include "common/common_types.h"
#include "common/fiber.h"
#include "common/logging/log.h"
#include "common/thread_queue_list.h"
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/core_timing_util.h"
#include "core/cpu_manager.h"
#include "core/hardware_properties.h"
#include "core/hle/kernel/errors.h"
#include "core/hle/kernel/handle_table.h"
@ -23,6 +25,7 @@
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/scheduler.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/time_manager.h"
#include "core/hle/result.h"
#include "core/memory.h"
@ -44,6 +47,7 @@ Thread::Thread(KernelCore& kernel) : SynchronizationObject{kernel} {}
Thread::~Thread() = default;
void Thread::Stop() {
SchedulerLock lock(kernel);
// Cancel any outstanding wakeup events for this thread
Core::System::GetInstance().CoreTiming().UnscheduleEvent(kernel.ThreadWakeupCallbackEventType(),
global_handle);
@ -71,9 +75,8 @@ void Thread::WakeAfterDelay(s64 nanoseconds) {
// This function might be called from any thread so we have to be cautious and use the
// thread-safe version of ScheduleEvent.
const s64 cycles = Core::Timing::nsToCycles(std::chrono::nanoseconds{nanoseconds});
Core::System::GetInstance().CoreTiming().ScheduleEvent(
cycles, kernel.ThreadWakeupCallbackEventType(), global_handle);
nanoseconds, kernel.ThreadWakeupCallbackEventType(), global_handle);
}
void Thread::CancelWakeupTimer() {
@ -125,6 +128,16 @@ void Thread::ResumeFromWait() {
SetStatus(ThreadStatus::Ready);
}
void Thread::OnWakeUp() {
SchedulerLock lock(kernel);
if (activity == ThreadActivity::Paused) {
SetStatus(ThreadStatus::Paused);
return;
}
SetStatus(ThreadStatus::Ready);
}
void Thread::CancelWait() {
if (GetSchedulingStatus() != ThreadSchedStatus::Paused) {
is_sync_cancelled = true;
@ -153,12 +166,29 @@ static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context,
context.fpcr = 0;
}
ResultVal<std::shared_ptr<Thread>> Thread::Create(KernelCore& kernel, std::string name,
VAddr entry_point, u32 priority, u64 arg,
s32 processor_id, VAddr stack_top,
Process& owner_process) {
std::shared_ptr<Common::Fiber> Thread::GetHostContext() const {
return host_context;
}
ResultVal<std::shared_ptr<Thread>> Thread::Create(Core::System& system, ThreadType type_flags,
std::string name, VAddr entry_point, u32 priority,
u64 arg, s32 processor_id, VAddr stack_top,
Process* owner_process) {
std::function<void(void*)> init_func = system.GetCpuManager().GetGuestThreadStartFunc();
void* init_func_parameter = system.GetCpuManager().GetStartFuncParamater();
return Create(system, type_flags, name, entry_point, priority, arg, processor_id, stack_top,
owner_process, std::move(init_func), init_func_parameter);
}
ResultVal<std::shared_ptr<Thread>> Thread::Create(Core::System& system, ThreadType type_flags,
std::string name, VAddr entry_point, u32 priority,
u64 arg, s32 processor_id, VAddr stack_top,
Process* owner_process,
std::function<void(void*)>&& thread_start_func,
void* thread_start_parameter) {
auto& kernel = system.Kernel();
// Check if priority is in ranged. Lowest priority -> highest priority id.
if (priority > THREADPRIO_LOWEST) {
if (priority > THREADPRIO_LOWEST && (type_flags & THREADTYPE_IDLE == 0)) {
LOG_ERROR(Kernel_SVC, "Invalid thread priority: {}", priority);
return ERR_INVALID_THREAD_PRIORITY;
}
@ -168,11 +198,12 @@ ResultVal<std::shared_ptr<Thread>> Thread::Create(KernelCore& kernel, std::strin
return ERR_INVALID_PROCESSOR_ID;
}
auto& system = Core::System::GetInstance();
if (!system.Memory().IsValidVirtualAddress(owner_process, entry_point)) {
LOG_ERROR(Kernel_SVC, "(name={}): invalid entry {:016X}", name, entry_point);
// TODO (bunnei): Find the correct error code to use here
return RESULT_UNKNOWN;
if (owner_process) {
if (!system.Memory().IsValidVirtualAddress(*owner_process, entry_point)) {
LOG_ERROR(Kernel_SVC, "(name={}): invalid entry {:016X}", name, entry_point);
// TODO (bunnei): Find the correct error code to use here
return RESULT_UNKNOWN;
}
}
std::shared_ptr<Thread> thread = std::make_shared<Thread>(kernel);
@ -183,7 +214,7 @@ ResultVal<std::shared_ptr<Thread>> Thread::Create(KernelCore& kernel, std::strin
thread->stack_top = stack_top;
thread->tpidr_el0 = 0;
thread->nominal_priority = thread->current_priority = priority;
thread->last_running_ticks = system.CoreTiming().GetTicks();
thread->last_running_ticks = 0;
thread->processor_id = processor_id;
thread->ideal_core = processor_id;
thread->affinity_mask = 1ULL << processor_id;
@ -193,16 +224,27 @@ ResultVal<std::shared_ptr<Thread>> Thread::Create(KernelCore& kernel, std::strin
thread->wait_handle = 0;
thread->name = std::move(name);
thread->global_handle = kernel.GlobalHandleTable().Create(thread).Unwrap();
thread->owner_process = &owner_process;
auto& scheduler = kernel.GlobalScheduler();
scheduler.AddThread(thread);
thread->tls_address = thread->owner_process->CreateTLSRegion();
thread->owner_process->RegisterThread(thread.get());
ResetThreadContext32(thread->context_32, static_cast<u32>(stack_top),
static_cast<u32>(entry_point), static_cast<u32>(arg));
ResetThreadContext64(thread->context_64, stack_top, entry_point, arg);
thread->owner_process = owner_process;
thread->type = type_flags;
if ((type_flags & THREADTYPE_IDLE) == 0) {
auto& scheduler = kernel.GlobalScheduler();
scheduler.AddThread(thread);
}
if (owner_process) {
thread->tls_address = thread->owner_process->CreateTLSRegion();
thread->owner_process->RegisterThread(thread.get());
} else {
thread->tls_address = 0;
}
// TODO(peachum): move to ScheduleThread() when scheduler is added so selected core is used
// to initialize the context
if ((type_flags & THREADTYPE_HLE) == 0) {
ResetThreadContext32(thread->context_32, static_cast<u32>(stack_top),
static_cast<u32>(entry_point), static_cast<u32>(arg));
ResetThreadContext64(thread->context_64, stack_top, entry_point, arg);
}
thread->host_context =
std::make_shared<Common::Fiber>(std::move(thread_start_func), thread_start_parameter);
return MakeResult<std::shared_ptr<Thread>>(std::move(thread));
}
@ -258,7 +300,7 @@ void Thread::SetStatus(ThreadStatus new_status) {
}
if (status == ThreadStatus::Running) {
last_running_ticks = Core::System::GetInstance().CoreTiming().GetTicks();
last_running_ticks = Core::System::GetInstance().CoreTiming().GetCPUTicks();
}
status = new_status;
@ -375,38 +417,55 @@ void Thread::SetActivity(ThreadActivity value) {
}
void Thread::Sleep(s64 nanoseconds) {
// Sleep current thread and check for next thread to schedule
SetStatus(ThreadStatus::WaitSleep);
Handle event_handle{};
{
SchedulerLockAndSleep lock(kernel, event_handle, this, nanoseconds);
SetStatus(ThreadStatus::WaitSleep);
}
// Create an event to wake the thread up after the specified nanosecond delay has passed
WakeAfterDelay(nanoseconds);
if (event_handle != InvalidHandle) {
auto& time_manager = kernel.TimeManager();
time_manager.UnscheduleTimeEvent(event_handle);
}
}
bool Thread::YieldSimple() {
auto& scheduler = kernel.GlobalScheduler();
return scheduler.YieldThread(this);
bool result{};
{
SchedulerLock lock(kernel);
result = kernel.GlobalScheduler().YieldThread(this);
}
return result;
}
bool Thread::YieldAndBalanceLoad() {
auto& scheduler = kernel.GlobalScheduler();
return scheduler.YieldThreadAndBalanceLoad(this);
bool result{};
{
SchedulerLock lock(kernel);
result = kernel.GlobalScheduler().YieldThreadAndBalanceLoad(this);
}
return result;
}
bool Thread::YieldAndWaitForLoadBalancing() {
auto& scheduler = kernel.GlobalScheduler();
return scheduler.YieldThreadAndWaitForLoadBalancing(this);
bool result{};
{
SchedulerLock lock(kernel);
result = kernel.GlobalScheduler().YieldThreadAndWaitForLoadBalancing(this);
}
return result;
}
void Thread::SetSchedulingStatus(ThreadSchedStatus new_status) {
const u32 old_flags = scheduling_state;
scheduling_state = (scheduling_state & static_cast<u32>(ThreadSchedMasks::HighMask)) |
static_cast<u32>(new_status);
AdjustSchedulingOnStatus(old_flags);
kernel.GlobalScheduler().AdjustSchedulingOnStatus(this, old_flags);
}
void Thread::SetCurrentPriority(u32 new_priority) {
const u32 old_priority = std::exchange(current_priority, new_priority);
AdjustSchedulingOnPriority(old_priority);
kernel.GlobalScheduler().AdjustSchedulingOnPriority(this, old_priority);
}
ResultCode Thread::SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask) {
@ -443,111 +502,12 @@ ResultCode Thread::SetCoreAndAffinityMask(s32 new_core, u64 new_affinity_mask) {
processor_id = ideal_core;
}
}
AdjustSchedulingOnAffinity(old_affinity_mask, old_core);
kernel.GlobalScheduler().AdjustSchedulingOnAffinity(this, old_affinity_mask, old_core);
}
}
return RESULT_SUCCESS;
}
void Thread::AdjustSchedulingOnStatus(u32 old_flags) {
if (old_flags == scheduling_state) {
return;
}
auto& scheduler = kernel.GlobalScheduler();
if (static_cast<ThreadSchedStatus>(old_flags & static_cast<u32>(ThreadSchedMasks::LowMask)) ==
ThreadSchedStatus::Runnable) {
// In this case the thread was running, now it's pausing/exitting
if (processor_id >= 0) {
scheduler.Unschedule(current_priority, static_cast<u32>(processor_id), this);
}
for (u32 core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
if (core != static_cast<u32>(processor_id) && ((affinity_mask >> core) & 1) != 0) {
scheduler.Unsuggest(current_priority, core, this);
}
}
} else if (GetSchedulingStatus() == ThreadSchedStatus::Runnable) {
// The thread is now set to running from being stopped
if (processor_id >= 0) {
scheduler.Schedule(current_priority, static_cast<u32>(processor_id), this);
}
for (u32 core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
if (core != static_cast<u32>(processor_id) && ((affinity_mask >> core) & 1) != 0) {
scheduler.Suggest(current_priority, core, this);
}
}
}
scheduler.SetReselectionPending();
}
void Thread::AdjustSchedulingOnPriority(u32 old_priority) {
if (GetSchedulingStatus() != ThreadSchedStatus::Runnable) {
return;
}
auto& scheduler = kernel.GlobalScheduler();
if (processor_id >= 0) {
scheduler.Unschedule(old_priority, static_cast<u32>(processor_id), this);
}
for (u32 core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
if (core != static_cast<u32>(processor_id) && ((affinity_mask >> core) & 1) != 0) {
scheduler.Unsuggest(old_priority, core, this);
}
}
// Add thread to the new priority queues.
Thread* current_thread = GetCurrentThread();
if (processor_id >= 0) {
if (current_thread == this) {
scheduler.SchedulePrepend(current_priority, static_cast<u32>(processor_id), this);
} else {
scheduler.Schedule(current_priority, static_cast<u32>(processor_id), this);
}
}
for (u32 core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
if (core != static_cast<u32>(processor_id) && ((affinity_mask >> core) & 1) != 0) {
scheduler.Suggest(current_priority, core, this);
}
}
scheduler.SetReselectionPending();
}
void Thread::AdjustSchedulingOnAffinity(u64 old_affinity_mask, s32 old_core) {
auto& scheduler = kernel.GlobalScheduler();
if (GetSchedulingStatus() != ThreadSchedStatus::Runnable ||
current_priority >= THREADPRIO_COUNT) {
return;
}
for (u32 core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
if (((old_affinity_mask >> core) & 1) != 0) {
if (core == static_cast<u32>(old_core)) {
scheduler.Unschedule(current_priority, core, this);
} else {
scheduler.Unsuggest(current_priority, core, this);
}
}
}
for (u32 core = 0; core < Core::Hardware::NUM_CPU_CORES; core++) {
if (((affinity_mask >> core) & 1) != 0) {
if (core == static_cast<u32>(processor_id)) {
scheduler.Schedule(current_priority, core, this);
} else {
scheduler.Suggest(current_priority, core, this);
}
}
}
scheduler.SetReselectionPending();
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/**