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svc: Implement svcGetInfo command 0xF0000002

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This retrieves:

if (curr_thread == handle_thread) {
   result = total_thread_ticks + (hardware_tick_count - last_context_switch_ticks);
} else if (curr_thread == handle_thread && sub_id == current_core_index) {
   result = hardware_tick_count - last_context_switch_ticks;
}
This commit is contained in:
Lioncash
2018-10-25 18:42:50 -04:00
parent d278f25bda
commit 6594853eb1
6 changed files with 98 additions and 4 deletions
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28
src/core/hle/kernel/scheduler.cpp
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@ -9,6 +9,7 @@
#include "common/logging/log.h"
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/scheduler.h"
@ -34,6 +35,10 @@ Thread* Scheduler::GetCurrentThread() const {
return current_thread.get();
}
u64 Scheduler::GetLastContextSwitchTicks() const {
return last_context_switch_time;
}
Thread* Scheduler::PopNextReadyThread() {
Thread* next = nullptr;
Thread* thread = GetCurrentThread();
@ -54,7 +59,10 @@ Thread* Scheduler::PopNextReadyThread() {
}
void Scheduler::SwitchContext(Thread* new_thread) {
Thread* previous_thread = GetCurrentThread();
Thread* const previous_thread = GetCurrentThread();
Process* const previous_process = Core::CurrentProcess();
UpdateLastContextSwitchTime(previous_thread, previous_process);
// Save context for previous thread
if (previous_thread) {
@ -78,8 +86,6 @@ void Scheduler::SwitchContext(Thread* new_thread) {
// Cancel any outstanding wakeup events for this thread
new_thread->CancelWakeupTimer();
auto* const previous_process = Core::CurrentProcess();
current_thread = new_thread;
ready_queue.remove(new_thread->GetPriority(), new_thread);
@ -102,6 +108,22 @@ void Scheduler::SwitchContext(Thread* new_thread) {
}
}
void Scheduler::UpdateLastContextSwitchTime(Thread* thread, Process* process) {
const u64 prev_switch_ticks = last_context_switch_time;
const u64 most_recent_switch_ticks = CoreTiming::GetTicks();
const u64 update_ticks = most_recent_switch_ticks - prev_switch_ticks;
if (thread != nullptr) {
thread->UpdateCPUTimeTicks(update_ticks);
}
if (process != nullptr) {
process->UpdateCPUTimeTicks(update_ticks);
}
last_context_switch_time = most_recent_switch_ticks;
}
void Scheduler::Reschedule() {
std::lock_guard<std::mutex> lock(scheduler_mutex);