From d567b7e841558a367e37d64b032b3492ed4d5cf4 Mon Sep 17 00:00:00 2001 From: bunnei Date: Mon, 26 Oct 2020 21:45:08 -0700 Subject: hle: service: nvdrv: Implement SyncpointManager, to manage syncpoints. --- src/core/CMakeLists.txt | 2 + src/core/hle/service/nvdrv/nvdrv.cpp | 2 +- src/core/hle/service/nvdrv/syncpoint_manager.cpp | 39 +++++++++++ src/core/hle/service/nvdrv/syncpoint_manager.h | 85 ++++++++++++++++++++++++ 4 files changed, 127 insertions(+), 1 deletion(-) create mode 100644 src/core/hle/service/nvdrv/syncpoint_manager.cpp create mode 100644 src/core/hle/service/nvdrv/syncpoint_manager.h diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt index e0f207f3e..9a983e81d 100644 --- a/src/core/CMakeLists.txt +++ b/src/core/CMakeLists.txt @@ -454,6 +454,8 @@ add_library(core STATIC hle/service/nvdrv/nvdrv.h hle/service/nvdrv/nvmemp.cpp hle/service/nvdrv/nvmemp.h + hle/service/nvdrv/syncpoint_manager.cpp + hle/service/nvdrv/syncpoint_manager.h hle/service/nvflinger/buffer_queue.cpp hle/service/nvflinger/buffer_queue.h hle/service/nvflinger/nvflinger.cpp diff --git a/src/core/hle/service/nvdrv/nvdrv.cpp b/src/core/hle/service/nvdrv/nvdrv.cpp index 803c1a984..e6a205c8e 100644 --- a/src/core/hle/service/nvdrv/nvdrv.cpp +++ b/src/core/hle/service/nvdrv/nvdrv.cpp @@ -36,7 +36,7 @@ void InstallInterfaces(SM::ServiceManager& service_manager, NVFlinger::NVFlinger nvflinger.SetNVDrvInstance(module_); } -Module::Module(Core::System& system) { +Module::Module(Core::System& system) : syncpoint_manager{system.GPU()} { auto& kernel = system.Kernel(); for (u32 i = 0; i < MaxNvEvents; i++) { std::string event_label = fmt::format("NVDRV::NvEvent_{}", i); diff --git a/src/core/hle/service/nvdrv/syncpoint_manager.cpp b/src/core/hle/service/nvdrv/syncpoint_manager.cpp new file mode 100644 index 000000000..0151a03b7 --- /dev/null +++ b/src/core/hle/service/nvdrv/syncpoint_manager.cpp @@ -0,0 +1,39 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/assert.h" +#include "core/hle/service/nvdrv/syncpoint_manager.h" +#include "video_core/gpu.h" + +namespace Service::Nvidia { + +SyncpointManager::SyncpointManager(Tegra::GPU& gpu) : gpu{gpu} {} + +SyncpointManager::~SyncpointManager() = default; + +u32 SyncpointManager::RefreshSyncpoint(u32 syncpoint_id) { + syncpoints[syncpoint_id].min = gpu.GetSyncpointValue(syncpoint_id); + return GetSyncpointMin(syncpoint_id); +} + +u32 SyncpointManager::AllocateSyncpoint() { + for (u32 syncpoint_id = 1; syncpoint_id < MaxSyncPoints; syncpoint_id++) { + if (!syncpoints[syncpoint_id].is_allocated) { + syncpoints[syncpoint_id].is_allocated = true; + return syncpoint_id; + } + } + UNREACHABLE_MSG("No more available syncpoints!"); + return {}; +} + +u32 SyncpointManager::IncreaseSyncpoint(u32 syncpoint_id, u32 value) { + for (u32 index = 0; index < value; ++index) { + syncpoints[syncpoint_id].max.fetch_add(1, std::memory_order_relaxed); + } + + return GetSyncpointMax(syncpoint_id); +} + +} // namespace Service::Nvidia diff --git a/src/core/hle/service/nvdrv/syncpoint_manager.h b/src/core/hle/service/nvdrv/syncpoint_manager.h new file mode 100644 index 000000000..4168b6c7e --- /dev/null +++ b/src/core/hle/service/nvdrv/syncpoint_manager.h @@ -0,0 +1,85 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include +#include + +#include "common/common_types.h" +#include "core/hle/service/nvdrv/nvdata.h" + +namespace Tegra { +class GPU; +} + +namespace Service::Nvidia { + +class SyncpointManager final { +public: + explicit SyncpointManager(Tegra::GPU& gpu); + ~SyncpointManager(); + + /** + * Returns true if the specified syncpoint is expired for the given value. + * @param syncpoint_id Syncpoint ID to check. + * @param value Value to check against the specified syncpoint. + * @returns True if the specified syncpoint is expired for the given value, otherwise False. + */ + bool IsSyncpointExpired(u32 syncpoint_id, u32 value) const { + return (GetSyncpointMax(syncpoint_id) - value) >= (GetSyncpointMin(syncpoint_id) - value); + } + + /** + * Gets the lower bound for the specified syncpoint. + * @param syncpoint_id Syncpoint ID to get the lower bound for. + * @returns The lower bound for the specified syncpoint. + */ + u32 GetSyncpointMin(u32 syncpoint_id) const { + return syncpoints[syncpoint_id].min.load(std::memory_order_relaxed); + } + + /** + * Gets the uper bound for the specified syncpoint. + * @param syncpoint_id Syncpoint ID to get the upper bound for. + * @returns The upper bound for the specified syncpoint. + */ + u32 GetSyncpointMax(u32 syncpoint_id) const { + return syncpoints[syncpoint_id].max.load(std::memory_order_relaxed); + } + + /** + * Refreshes the minimum value for the specified syncpoint. + * @param syncpoint_id Syncpoint ID to be refreshed. + * @returns The new syncpoint minimum value. + */ + u32 RefreshSyncpoint(u32 syncpoint_id); + + /** + * Allocates a new syncoint. + * @returns The syncpoint ID for the newly allocated syncpoint. + */ + u32 AllocateSyncpoint(); + + /** + * Increases the maximum value for the specified syncpoint. + * @param syncpoint_id Syncpoint ID to be increased. + * @param value Value to increase the specified syncpoint by. + * @returns The new syncpoint maximum value. + */ + u32 IncreaseSyncpoint(u32 syncpoint_id, u32 value); + +private: + struct Syncpoint { + std::atomic min; + std::atomic max; + std::atomic is_allocated; + }; + + std::array syncpoints{}; + + Tegra::GPU& gpu; +}; + +} // namespace Service::Nvidia -- cgit v1.2.3