hle: service: nvdrv: Implement SyncpointManager, to manage syncpoints.

This commit is contained in:
bunnei 2020-10-26 21:45:08 -07:00
parent bca9591660
commit d567b7e841
4 changed files with 127 additions and 1 deletions

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@ -454,6 +454,8 @@ add_library(core STATIC
hle/service/nvdrv/nvdrv.h hle/service/nvdrv/nvdrv.h
hle/service/nvdrv/nvmemp.cpp hle/service/nvdrv/nvmemp.cpp
hle/service/nvdrv/nvmemp.h 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.cpp
hle/service/nvflinger/buffer_queue.h hle/service/nvflinger/buffer_queue.h
hle/service/nvflinger/nvflinger.cpp hle/service/nvflinger/nvflinger.cpp

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@ -36,7 +36,7 @@ void InstallInterfaces(SM::ServiceManager& service_manager, NVFlinger::NVFlinger
nvflinger.SetNVDrvInstance(module_); nvflinger.SetNVDrvInstance(module_);
} }
Module::Module(Core::System& system) { Module::Module(Core::System& system) : syncpoint_manager{system.GPU()} {
auto& kernel = system.Kernel(); auto& kernel = system.Kernel();
for (u32 i = 0; i < MaxNvEvents; i++) { for (u32 i = 0; i < MaxNvEvents; i++) {
std::string event_label = fmt::format("NVDRV::NvEvent_{}", i); std::string event_label = fmt::format("NVDRV::NvEvent_{}", i);

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@ -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

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@ -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 <array>
#include <atomic>
#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<u32> min;
std::atomic<u32> max;
std::atomic<bool> is_allocated;
};
std::array<Syncpoint, MaxSyncPoints> syncpoints{};
Tegra::GPU& gpu;
};
} // namespace Service::Nvidia