// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv3 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <atomic>
#include <condition_variable>
#include <functional>
#include <list>
#include <mutex>
#include "common/common_types.h"
namespace Tegra {
namespace Host1x {
class SyncpointManager {
public:
u32 GetGuestSyncpointValue(u32 id) {
return syncpoints_guest[id].load(std::memory_order_acquire);
}
u32 GetHostSyncpointValue(u32 id) {
return syncpoints_host[id].load(std::memory_order_acquire);
}
struct RegisteredAction {
RegisteredAction(u32 expected_value_, std::function<void(void)>& action_)
: expected_value{expected_value_}, action{action_} {}
u32 expected_value;
std::function<void(void)> action;
};
using ActionHandle = std::list<RegisteredAction>::iterator;
template <typename Func>
ActionHandle RegisterGuestAction(u32 syncpoint_id, u32 expected_value, Func&& action) {
std::function<void(void)> func(action);
return RegisterAction(syncpoints_guest[syncpoint_id], guest_action_storage[syncpoint_id],
expected_value, func);
}
template <typename Func>
ActionHandle RegisterHostAction(u32 syncpoint_id, u32 expected_value, Func&& action) {
std::function<void(void)> func(action);
return RegisterAction(syncpoints_host[syncpoint_id], host_action_storage[syncpoint_id],
expected_value, func);
}
void DeregisterGuestAction(u32 syncpoint_id, ActionHandle& handle);
void DeregisterHostAction(u32 syncpoint_id, ActionHandle& handle);
void IncrementGuest(u32 syncpoint_id);
void IncrementHost(u32 syncpoint_id);
void WaitGuest(u32 syncpoint_id, u32 expected_value);
void WaitHost(u32 syncpoint_id, u32 expected_value);
bool IsReadyGuest(u32 syncpoint_id, u32 expected_value) {
return syncpoints_guest[syncpoint_id].load(std::memory_order_acquire) >= expected_value;
}
bool IsReadyHost(u32 syncpoint_id, u32 expected_value) {
return syncpoints_host[syncpoint_id].load(std::memory_order_acquire) >= expected_value;
}
private:
void Increment(std::atomic<u32>& syncpoint, std::condition_variable& wait_cv,
std::list<RegisteredAction>& action_storage);
ActionHandle RegisterAction(std::atomic<u32>& syncpoint,
std::list<RegisteredAction>& action_storage, u32 expected_value,
std::function<void(void)>& action);
void DeregisterAction(std::list<RegisteredAction>& action_storage, ActionHandle& handle);
void Wait(std::atomic<u32>& syncpoint, std::condition_variable& wait_cv, u32 expected_value);
static constexpr size_t NUM_MAX_SYNCPOINTS = 192;
std::array<std::atomic<u32>, NUM_MAX_SYNCPOINTS> syncpoints_guest{};
std::array<std::atomic<u32>, NUM_MAX_SYNCPOINTS> syncpoints_host{};
std::array<std::list<RegisteredAction>, NUM_MAX_SYNCPOINTS> guest_action_storage;
std::array<std::list<RegisteredAction>, NUM_MAX_SYNCPOINTS> host_action_storage;
std::mutex guard;
std::condition_variable wait_guest_cv;
std::condition_variable wait_host_cv;
};
} // namespace Host1x
} // namespace Tegra
