forked from suyu/suyu
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
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// Copyright 2020 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <atomic>
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#include "common/common_types.h"
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#include "core/hle/service/nvdrv/nvdata.h"
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namespace Tegra {
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class GPU;
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}
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namespace Service::Nvidia {
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class SyncpointManager final {
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public:
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explicit SyncpointManager(Tegra::GPU& gpu);
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~SyncpointManager();
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/**
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* Returns true if the specified syncpoint is expired for the given value.
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* @param syncpoint_id Syncpoint ID to check.
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* @param value Value to check against the specified syncpoint.
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* @returns True if the specified syncpoint is expired for the given value, otherwise False.
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*/
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bool IsSyncpointExpired(u32 syncpoint_id, u32 value) const {
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return (GetSyncpointMax(syncpoint_id) - value) >= (GetSyncpointMin(syncpoint_id) - value);
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}
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/**
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* Gets the lower bound for the specified syncpoint.
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* @param syncpoint_id Syncpoint ID to get the lower bound for.
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* @returns The lower bound for the specified syncpoint.
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*/
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u32 GetSyncpointMin(u32 syncpoint_id) const {
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return syncpoints[syncpoint_id].min.load(std::memory_order_relaxed);
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}
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/**
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* Gets the uper bound for the specified syncpoint.
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* @param syncpoint_id Syncpoint ID to get the upper bound for.
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* @returns The upper bound for the specified syncpoint.
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*/
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u32 GetSyncpointMax(u32 syncpoint_id) const {
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return syncpoints[syncpoint_id].max.load(std::memory_order_relaxed);
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}
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/**
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* Refreshes the minimum value for the specified syncpoint.
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* @param syncpoint_id Syncpoint ID to be refreshed.
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* @returns The new syncpoint minimum value.
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*/
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u32 RefreshSyncpoint(u32 syncpoint_id);
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/**
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* Allocates a new syncoint.
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* @returns The syncpoint ID for the newly allocated syncpoint.
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*/
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u32 AllocateSyncpoint();
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/**
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* Increases the maximum value for the specified syncpoint.
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* @param syncpoint_id Syncpoint ID to be increased.
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* @param value Value to increase the specified syncpoint by.
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* @returns The new syncpoint maximum value.
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*/
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u32 IncreaseSyncpoint(u32 syncpoint_id, u32 value);
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private:
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struct Syncpoint {
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std::atomic<u32> min;
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std::atomic<u32> max;
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std::atomic<bool> is_allocated;
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};
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std::array<Syncpoint, MaxSyncPoints> syncpoints{};
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Tegra::GPU& gpu;
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};
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} // namespace Service::Nvidia
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