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Code Issues Releases Activity

Merge pull request #4869 from bunnei/improve-gpu-sync

Browse source 
Improvements to GPU synchronization & various refactoring
This commit is contained in:
Chloe 2020-11-04 18:36:55 +11:00 committed by GitHub
commit 6bbbbe8f85
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 451 additions and 120 deletions
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2
src/core/CMakeLists.txt
View file

@ -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

10
src/core/core.cpp
View file

@ -179,16 +179,18 @@ struct System::Impl {
arp_manager.ResetAll();
telemetry_session = std::make_unique<Core::TelemetrySession>();
gpu_core = VideoCore::CreateGPU(emu_window, system);
if (!gpu_core) {
return ResultStatus::ErrorVideoCore;
}
service_manager = std::make_shared<Service::SM::ServiceManager>(kernel);
Service::Init(service_manager, system);
GDBStub::DeferStart();
interrupt_manager = std::make_unique<Core::Hardware::InterruptManager>(system);
gpu_core = VideoCore::CreateGPU(emu_window, system);
if (!gpu_core) {
return ResultStatus::ErrorVideoCore;
}
// Initialize time manager, which must happen after kernel is created
time_manager.Initialize();

33
src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
View file

@ -15,8 +15,9 @@
namespace Service::Nvidia::Devices {
nvhost_ctrl::nvhost_ctrl(Core::System& system, EventInterface& events_interface)
: nvdevice(system), events_interface{events_interface} {}
nvhost_ctrl::nvhost_ctrl(Core::System& system, EventInterface& events_interface,
SyncpointManager& syncpoint_manager)
: nvdevice(system), events_interface{events_interface}, syncpoint_manager{syncpoint_manager} {}
nvhost_ctrl::~nvhost_ctrl() = default;
u32 nvhost_ctrl::ioctl(Ioctl command, const std::vector<u8>& input, const std::vector<u8>& input2,
@ -70,19 +71,33 @@ u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>&
return NvResult::BadParameter;
}
if (syncpoint_manager.IsSyncpointExpired(params.syncpt_id, params.threshold)) {
params.value = syncpoint_manager.GetSyncpointMin(params.syncpt_id);
std::memcpy(output.data(), &params, sizeof(params));
return NvResult::Success;
}
if (const auto new_value = syncpoint_manager.RefreshSyncpoint(params.syncpt_id);
syncpoint_manager.IsSyncpointExpired(params.syncpt_id, params.threshold)) {
params.value = new_value;
std::memcpy(output.data(), &params, sizeof(params));
return NvResult::Success;
}
auto event = events_interface.events[event_id];
auto& gpu = system.GPU();
// This is mostly to take into account unimplemented features. As synced
// gpu is always synced.
if (!gpu.IsAsync()) {
event.writable->Signal();
event.event.writable->Signal();
return NvResult::Success;
}
auto lock = gpu.LockSync();
const u32 current_syncpoint_value = gpu.GetSyncpointValue(params.syncpt_id);
const u32 current_syncpoint_value = event.fence.value;
const s32 diff = current_syncpoint_value - params.threshold;
if (diff >= 0) {
event.writable->Signal();
event.event.writable->Signal();
params.value = current_syncpoint_value;
std::memcpy(output.data(), &params, sizeof(params));
return NvResult::Success;
@ -109,7 +124,7 @@ u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>&
params.value = ((params.syncpt_id & 0xfff) << 16) | 0x10000000;
}
params.value |= event_id;
event.writable->Clear();
event.event.writable->Clear();
gpu.RegisterSyncptInterrupt(params.syncpt_id, target_value);
if (!is_async && ctrl.fresh_call) {
ctrl.must_delay = true;
@ -157,15 +172,19 @@ u32 nvhost_ctrl::IocCtrlEventUnregister(const std::vector<u8>& input, std::vecto
u32 nvhost_ctrl::IocCtrlClearEventWait(const std::vector<u8>& input, std::vector<u8>& output) {
IocCtrlEventSignalParams params{};
std::memcpy(&params, input.data(), sizeof(params));
u32 event_id = params.event_id & 0x00FF;
LOG_WARNING(Service_NVDRV, "cleared event wait on, event_id: {:X}", event_id);
if (event_id >= MaxNvEvents) {
return NvResult::BadParameter;
}
if (events_interface.status[event_id] == EventState::Waiting) {
events_interface.LiberateEvent(event_id);
events_interface.events[event_id].writable->Signal();
}
syncpoint_manager.RefreshSyncpoint(events_interface.events[event_id].fence.id);
return NvResult::Success;
}

4
src/core/hle/service/nvdrv/devices/nvhost_ctrl.h
View file

@ -14,7 +14,8 @@ namespace Service::Nvidia::Devices {
class nvhost_ctrl final : public nvdevice {
public:
explicit nvhost_ctrl(Core::System& system, EventInterface& events_interface);
explicit nvhost_ctrl(Core::System& system, EventInterface& events_interface,
SyncpointManager& syncpoint_manager);
~nvhost_ctrl() override;
u32 ioctl(Ioctl command, const std::vector<u8>& input, const std::vector<u8>& input2,
@ -145,6 +146,7 @@ private:
u32 IocCtrlClearEventWait(const std::vector<u8>& input, std::vector<u8>& output);
EventInterface& events_interface;
SyncpointManager& syncpoint_manager;
};
} // namespace Service::Nvidia::Devices

141
src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp
View file

@ -7,14 +7,20 @@
#include "common/logging/log.h"
#include "core/core.h"
#include "core/hle/service/nvdrv/devices/nvhost_gpu.h"
#include "core/hle/service/nvdrv/syncpoint_manager.h"
#include "core/memory.h"
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
namespace Service::Nvidia::Devices {
nvhost_gpu::nvhost_gpu(Core::System& system, std::shared_ptr<nvmap> nvmap_dev)
: nvdevice(system), nvmap_dev(std::move(nvmap_dev)) {}
nvhost_gpu::nvhost_gpu(Core::System& system, std::shared_ptr<nvmap> nvmap_dev,
SyncpointManager& syncpoint_manager)
: nvdevice(system), nvmap_dev(std::move(nvmap_dev)), syncpoint_manager{syncpoint_manager} {
channel_fence.id = syncpoint_manager.AllocateSyncpoint();
channel_fence.value = system.GPU().GetSyncpointValue(channel_fence.id);
}
nvhost_gpu::~nvhost_gpu() = default;
u32 nvhost_gpu::ioctl(Ioctl command, const std::vector<u8>& input, const std::vector<u8>& input2,
@ -126,10 +132,10 @@ u32 nvhost_gpu::AllocGPFIFOEx2(const std::vector<u8>& input, std::vector<u8>& ou
params.num_entries, params.flags, params.unk0, params.unk1, params.unk2,
params.unk3);
auto& gpu = system.GPU();
params.fence_out.id = assigned_syncpoints;
params.fence_out.value = gpu.GetSyncpointValue(assigned_syncpoints);
assigned_syncpoints++;
channel_fence.value = system.GPU().GetSyncpointValue(channel_fence.id);
params.fence_out = channel_fence;
std::memcpy(output.data(), &params, output.size());
return 0;
}
@ -145,37 +151,98 @@ u32 nvhost_gpu::AllocateObjectContext(const std::vector<u8>& input, std::vector<
return 0;
}
static std::vector<Tegra::CommandHeader> BuildWaitCommandList(Fence fence) {
return {
Tegra::BuildCommandHeader(Tegra::BufferMethods::FenceValue, 1,
Tegra::SubmissionMode::Increasing),
{fence.value},
Tegra::BuildCommandHeader(Tegra::BufferMethods::FenceAction, 1,
Tegra::SubmissionMode::Increasing),
Tegra::GPU::FenceAction::Build(Tegra::GPU::FenceOperation::Acquire, fence.id),
};
}
static std::vector<Tegra::CommandHeader> BuildIncrementCommandList(Fence fence, u32 add_increment) {
std::vector<Tegra::CommandHeader> result{
Tegra::BuildCommandHeader(Tegra::BufferMethods::FenceValue, 1,
Tegra::SubmissionMode::Increasing),
{}};
for (u32 count = 0; count < add_increment; ++count) {
result.emplace_back(Tegra::BuildCommandHeader(Tegra::BufferMethods::FenceAction, 1,
Tegra::SubmissionMode::Increasing));
result.emplace_back(
Tegra::GPU::FenceAction::Build(Tegra::GPU::FenceOperation::Increment, fence.id));
}
return result;
}
static std::vector<Tegra::CommandHeader> BuildIncrementWithWfiCommandList(Fence fence,
u32 add_increment) {
std::vector<Tegra::CommandHeader> result{
Tegra::BuildCommandHeader(Tegra::BufferMethods::WaitForInterrupt, 1,
Tegra::SubmissionMode::Increasing),
{}};
const std::vector<Tegra::CommandHeader> increment{
BuildIncrementCommandList(fence, add_increment)};
result.insert(result.end(), increment.begin(), increment.end());
return result;
}
u32 nvhost_gpu::SubmitGPFIFOImpl(IoctlSubmitGpfifo& params, std::vector<u8>& output,
Tegra::CommandList&& entries) {
LOG_TRACE(Service_NVDRV, "called, gpfifo={:X}, num_entries={:X}, flags={:X}", params.address,
params.num_entries, params.flags.raw);
auto& gpu = system.GPU();
params.fence_out.id = channel_fence.id;
if (params.flags.add_wait.Value() &&
!syncpoint_manager.IsSyncpointExpired(params.fence_out.id, params.fence_out.value)) {
gpu.PushGPUEntries(Tegra::CommandList{BuildWaitCommandList(params.fence_out)});
}
if (params.flags.add_increment.Value() || params.flags.increment.Value()) {
const u32 increment_value = params.flags.increment.Value() ? params.fence_out.value : 0;
params.fence_out.value = syncpoint_manager.IncreaseSyncpoint(
params.fence_out.id, params.AddIncrementValue() + increment_value);
} else {
params.fence_out.value = syncpoint_manager.GetSyncpointMax(params.fence_out.id);
}
entries.RefreshIntegrityChecks(gpu);
gpu.PushGPUEntries(std::move(entries));
if (params.flags.add_increment.Value()) {
if (params.flags.suppress_wfi) {
gpu.PushGPUEntries(Tegra::CommandList{
BuildIncrementCommandList(params.fence_out, params.AddIncrementValue())});
} else {
gpu.PushGPUEntries(Tegra::CommandList{
BuildIncrementWithWfiCommandList(params.fence_out, params.AddIncrementValue())});
}
}
std::memcpy(output.data(), &params, sizeof(IoctlSubmitGpfifo));
return 0;
}
u32 nvhost_gpu::SubmitGPFIFO(const std::vector<u8>& input, std::vector<u8>& output) {
if (input.size() < sizeof(IoctlSubmitGpfifo)) {
UNIMPLEMENTED();
}
IoctlSubmitGpfifo params{};
std::memcpy(&params, input.data(), sizeof(IoctlSubmitGpfifo));
LOG_TRACE(Service_NVDRV, "called, gpfifo={:X}, num_entries={:X}, flags={:X}", params.address,
params.num_entries, params.flags.raw);
ASSERT_MSG(input.size() == sizeof(IoctlSubmitGpfifo) +
params.num_entries * sizeof(Tegra::CommandListHeader),
"Incorrect input size");
Tegra::CommandList entries(params.num_entries);
std::memcpy(entries.data(), &input[sizeof(IoctlSubmitGpfifo)],
std::memcpy(entries.command_lists.data(), &input[sizeof(IoctlSubmitGpfifo)],
params.num_entries * sizeof(Tegra::CommandListHeader));
UNIMPLEMENTED_IF(params.flags.add_wait.Value() != 0);
UNIMPLEMENTED_IF(params.flags.add_increment.Value() != 0);
auto& gpu = system.GPU();
u32 current_syncpoint_value = gpu.GetSyncpointValue(params.fence_out.id);
if (params.flags.increment.Value()) {
params.fence_out.value += current_syncpoint_value;
} else {
params.fence_out.value = current_syncpoint_value;
}
gpu.PushGPUEntries(std::move(entries));
std::memcpy(output.data(), &params, sizeof(IoctlSubmitGpfifo));
return 0;
return SubmitGPFIFOImpl(params, output, std::move(entries));
}
u32 nvhost_gpu::KickoffPB(const std::vector<u8>& input, std::vector<u8>& output,
@ -185,31 +252,17 @@ u32 nvhost_gpu::KickoffPB(const std::vector<u8>& input, std::vector<u8>& output,
}
IoctlSubmitGpfifo params{};
std::memcpy(&params, input.data(), sizeof(IoctlSubmitGpfifo));
LOG_TRACE(Service_NVDRV, "called, gpfifo={:X}, num_entries={:X}, flags={:X}", params.address,
params.num_entries, params.flags.raw);
Tegra::CommandList entries(params.num_entries);
if (version == IoctlVersion::Version2) {
std::memcpy(entries.data(), input2.data(),
std::memcpy(entries.command_lists.data(), input2.data(),
params.num_entries * sizeof(Tegra::CommandListHeader));
} else {
system.Memory().ReadBlock(params.address, entries.data(),
system.Memory().ReadBlock(params.address, entries.command_lists.data(),
params.num_entries * sizeof(Tegra::CommandListHeader));
}
UNIMPLEMENTED_IF(params.flags.add_wait.Value() != 0);
UNIMPLEMENTED_IF(params.flags.add_increment.Value() != 0);
auto& gpu = system.GPU();
u32 current_syncpoint_value = gpu.GetSyncpointValue(params.fence_out.id);
if (params.flags.increment.Value()) {
params.fence_out.value += current_syncpoint_value;
} else {
params.fence_out.value = current_syncpoint_value;
}
gpu.PushGPUEntries(std::move(entries));
std::memcpy(output.data(), &params, output.size());
return 0;
return SubmitGPFIFOImpl(params, output, std::move(entries));
}
u32 nvhost_gpu::GetWaitbase(const std::vector<u8>& input, std::vector<u8>& output) {

20
src/core/hle/service/nvdrv/devices/nvhost_gpu.h
View file

@ -11,6 +11,11 @@
#include "common/swap.h"
#include "core/hle/service/nvdrv/devices/nvdevice.h"
#include "core/hle/service/nvdrv/nvdata.h"
#include "video_core/dma_pusher.h"
namespace Service::Nvidia {
class SyncpointManager;
}
namespace Service::Nvidia::Devices {
@ -21,7 +26,8 @@ constexpr u32 NVGPU_IOCTL_CHANNEL_KICKOFF_PB(0x1b);
class nvhost_gpu final : public nvdevice {
public:
explicit nvhost_gpu(Core::System& system, std::shared_ptr<nvmap> nvmap_dev);
explicit nvhost_gpu(Core::System& system, std::shared_ptr<nvmap> nvmap_dev,
SyncpointManager& syncpoint_manager);
~nvhost_gpu() override;
u32 ioctl(Ioctl command, const std::vector<u8>& input, const std::vector<u8>& input2,
@ -162,10 +168,15 @@ private:
u32_le raw;
BitField<0, 1, u32_le> add_wait; // append a wait sync_point to the list
BitField<1, 1, u32_le> add_increment; // append an increment to the list
BitField<2, 1, u32_le> new_hw_format; // Mostly ignored
BitField<2, 1, u32_le> new_hw_format; // mostly ignored
BitField<4, 1, u32_le> suppress_wfi; // suppress wait for interrupt
BitField<8, 1, u32_le> increment; // increment the returned fence
} flags;
Fence fence_out; // returned new fence object for others to wait on
u32 AddIncrementValue() const {
return flags.add_increment.Value() << 1;
}
};
static_assert(sizeof(IoctlSubmitGpfifo) == 16 + sizeof(Fence),
"IoctlSubmitGpfifo is incorrect size");
@ -190,6 +201,8 @@ private:
u32 SetChannelPriority(const std::vector<u8>& input, std::vector<u8>& output);
u32 AllocGPFIFOEx2(const std::vector<u8>& input, std::vector<u8>& output);
u32 AllocateObjectContext(const std::vector<u8>& input, std::vector<u8>& output);
u32 SubmitGPFIFOImpl(IoctlSubmitGpfifo& params, std::vector<u8>& output,
Tegra::CommandList&& entries);
u32 SubmitGPFIFO(const std::vector<u8>& input, std::vector<u8>& output);
u32 KickoffPB(const std::vector<u8>& input, std::vector<u8>& output,
const std::vector<u8>& input2, IoctlVersion version);
@ -198,7 +211,8 @@ private:
u32 ChannelSetTimeslice(const std::vector<u8>& input, std::vector<u8>& output);
std::shared_ptr<nvmap> nvmap_dev;
u32 assigned_syncpoints{};
SyncpointManager& syncpoint_manager;
Fence channel_fence;
};
} // namespace Service::Nvidia::Devices

17
src/core/hle/service/nvdrv/nvdrv.cpp
View file

@ -21,6 +21,7 @@
#include "core/hle/service/nvdrv/interface.h"
#include "core/hle/service/nvdrv/nvdrv.h"
#include "core/hle/service/nvdrv/nvmemp.h"
#include "core/hle/service/nvdrv/syncpoint_manager.h"
#include "core/hle/service/nvflinger/nvflinger.h"
namespace Service::Nvidia {
@ -36,21 +37,23 @@ 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);
events_interface.events[i] = Kernel::WritableEvent::CreateEventPair(kernel, event_label);
events_interface.events[i] = {Kernel::WritableEvent::CreateEventPair(kernel, event_label)};
events_interface.status[i] = EventState::Free;
events_interface.registered[i] = false;
}
auto nvmap_dev = std::make_shared<Devices::nvmap>(system);
devices["/dev/nvhost-as-gpu"] = std::make_shared<Devices::nvhost_as_gpu>(system, nvmap_dev);
devices["/dev/nvhost-gpu"] = std::make_shared<Devices::nvhost_gpu>(system, nvmap_dev);
devices["/dev/nvhost-gpu"] =
std::make_shared<Devices::nvhost_gpu>(system, nvmap_dev, syncpoint_manager);
devices["/dev/nvhost-ctrl-gpu"] = std::make_shared<Devices::nvhost_ctrl_gpu>(system);
devices["/dev/nvmap"] = nvmap_dev;
devices["/dev/nvdisp_disp0"] = std::make_shared<Devices::nvdisp_disp0>(system, nvmap_dev);
devices["/dev/nvhost-ctrl"] = std::make_shared<Devices::nvhost_ctrl>(system, events_interface);
devices["/dev/nvhost-ctrl"] =
std::make_shared<Devices::nvhost_ctrl>(system, events_interface, syncpoint_manager);
devices["/dev/nvhost-nvdec"] = std::make_shared<Devices::nvhost_nvdec>(system, nvmap_dev);
devices["/dev/nvhost-nvjpg"] = std::make_shared<Devices::nvhost_nvjpg>(system);
devices["/dev/nvhost-vic"] = std::make_shared<Devices::nvhost_vic>(system, nvmap_dev);
@ -95,17 +98,17 @@ void Module::SignalSyncpt(const u32 syncpoint_id, const u32 value) {
if (events_interface.assigned_syncpt[i] == syncpoint_id &&
events_interface.assigned_value[i] == value) {
events_interface.LiberateEvent(i);
events_interface.events[i].writable->Signal();
events_interface.events[i].event.writable->Signal();
}
}
}
std::shared_ptr<Kernel::ReadableEvent> Module::GetEvent(const u32 event_id) const {
return events_interface.events[event_id].readable;
return events_interface.events[event_id].event.readable;
}
std::shared_ptr<Kernel::WritableEvent> Module::GetEventWriteable(const u32 event_id) const {
return events_interface.events[event_id].writable;
return events_interface.events[event_id].event.writable;
}
} // namespace Service::Nvidia

14
src/core/hle/service/nvdrv/nvdrv.h
View file

@ -10,6 +10,7 @@
#include "common/common_types.h"
#include "core/hle/kernel/writable_event.h"
#include "core/hle/service/nvdrv/nvdata.h"
#include "core/hle/service/nvdrv/syncpoint_manager.h"
#include "core/hle/service/service.h"
namespace Core {
@ -22,15 +23,23 @@ class NVFlinger;
namespace Service::Nvidia {
class SyncpointManager;
namespace Devices {
class nvdevice;
}
/// Represents an Nvidia event
struct NvEvent {
Kernel::EventPair event;
Fence fence{};
};
struct EventInterface {
// Mask representing currently busy events
u64 events_mask{};
// Each kernel event associated to an NV event
std::array<Kernel::EventPair, MaxNvEvents> events;
std::array<NvEvent, MaxNvEvents> events;
// The status of the current NVEvent
std::array<EventState, MaxNvEvents> status{};
// Tells if an NVEvent is registered or not
@ -119,6 +128,9 @@ public:
std::shared_ptr<Kernel::WritableEvent> GetEventWriteable(u32 event_id) const;
private:
/// Manages syncpoints on the host
SyncpointManager syncpoint_manager;
/// Id to use for the next open file descriptor.
u32 next_fd = 1;

39
src/core/hle/service/nvdrv/syncpoint_manager.cpp Normal file
View file

@ -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

85
src/core/hle/service/nvdrv/syncpoint_manager.h Normal file
View file

@ -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

4
src/core/hle/service/nvflinger/nvflinger.cpp
View file

@ -242,6 +242,10 @@ void NVFlinger::Compose() {
const auto& igbp_buffer = buffer->get().igbp_buffer;
if (!system.IsPoweredOn()) {
return; // We are likely shutting down
}
auto& gpu = system.GPU();
const auto& multi_fence = buffer->get().multi_fence;
guard->unlock();

80
src/video_core/dma_pusher.cpp
View file

@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/cityhash.h"
#include "common/microprofile.h"
#include "core/core.h"
#include "core/memory.h"
@ -12,6 +13,20 @@
namespace Tegra {
void CommandList::RefreshIntegrityChecks(GPU& gpu) {
command_list_hashes.resize(command_lists.size());
for (std::size_t index = 0; index < command_lists.size(); ++index) {
const CommandListHeader command_list_header = command_lists[index];
std::vector<CommandHeader> command_headers(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(command_list_header.addr, command_headers.data(),
command_list_header.size * sizeof(u32));
command_list_hashes[index] =
Common::CityHash64(reinterpret_cast<char*>(command_headers.data()),
command_list_header.size * sizeof(u32));
}
}
DmaPusher::DmaPusher(Core::System& system, GPU& gpu) : gpu{gpu}, system{system} {}
DmaPusher::~DmaPusher() = default;
@ -45,32 +60,51 @@ bool DmaPusher::Step() {
return false;
}
const CommandList& command_list{dma_pushbuffer.front()};
ASSERT_OR_EXECUTE(!command_list.empty(), {
// Somehow the command_list is empty, in order to avoid a crash
// We ignore it and assume its size is 0.
CommandList& command_list{dma_pushbuffer.front()};
ASSERT_OR_EXECUTE(
command_list.command_lists.size() || command_list.prefetch_command_list.size(), {
// Somehow the command_list is empty, in order to avoid a crash
// We ignore it and assume its size is 0.
dma_pushbuffer.pop();
dma_pushbuffer_subindex = 0;
return true;
});
if (command_list.prefetch_command_list.size()) {
// Prefetched command list from nvdrv, used for things like synchronization
command_headers = std::move(command_list.prefetch_command_list);
dma_pushbuffer.pop();
dma_pushbuffer_subindex = 0;
return true;
});
const CommandListHeader command_list_header{command_list[dma_pushbuffer_subindex++]};
const GPUVAddr dma_get = command_list_header.addr;
} else {
const CommandListHeader command_list_header{
command_list.command_lists[dma_pushbuffer_subindex]};
const u64 next_hash = command_list.command_list_hashes[dma_pushbuffer_subindex++];
const GPUVAddr dma_get = command_list_header.addr;
if (dma_pushbuffer_subindex >= command_list.size()) {
// We've gone through the current list, remove it from the queue
dma_pushbuffer.pop();
dma_pushbuffer_subindex = 0;
if (dma_pushbuffer_subindex >= command_list.command_lists.size()) {
// We've gone through the current list, remove it from the queue
dma_pushbuffer.pop();
dma_pushbuffer_subindex = 0;
}
if (command_list_header.size == 0) {
return true;
}
// Push buffer non-empty, read a word
command_headers.resize(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
// Integrity check
const u64 new_hash = Common::CityHash64(reinterpret_cast<char*>(command_headers.data()),
command_list_header.size * sizeof(u32));
if (new_hash != next_hash) {
LOG_CRITICAL(HW_GPU, "CommandList at addr=0x{:X} is corrupt, skipping!", dma_get);
dma_pushbuffer.pop();
return true;
}
}
if (command_list_header.size == 0) {
return true;
}
// Push buffer non-empty, read a word
command_headers.resize(command_list_header.size);
gpu.MemoryManager().ReadBlockUnsafe(dma_get, command_headers.data(),
command_list_header.size * sizeof(u32));
for (std::size_t index = 0; index < command_headers.size();) {
const CommandHeader& command_header = command_headers[index];

49
src/video_core/dma_pusher.h
View file

@ -27,6 +27,31 @@ enum class SubmissionMode : u32 {
IncreaseOnce = 5
};
// Note that, traditionally, methods are treated as 4-byte addressable locations, and hence
// their numbers are written down multiplied by 4 in Docs. Here we are not multiply by 4.
// So the values you see in docs might be multiplied by 4.
enum class BufferMethods : u32 {
BindObject = 0x0,
Nop = 0x2,
SemaphoreAddressHigh = 0x4,
SemaphoreAddressLow = 0x5,
SemaphoreSequence = 0x6,
SemaphoreTrigger = 0x7,
NotifyIntr = 0x8,
WrcacheFlush = 0x9,
Unk28 = 0xA,
UnkCacheFlush = 0xB,
RefCnt = 0x14,
SemaphoreAcquire = 0x1A,
SemaphoreRelease = 0x1B,
FenceValue = 0x1C,
FenceAction = 0x1D,
WaitForInterrupt = 0x1E,
Unk7c = 0x1F,
Yield = 0x20,
NonPullerMethods = 0x40,
};
struct CommandListHeader {
union {
u64 raw;
@ -49,9 +74,29 @@ union CommandHeader {
static_assert(std::is_standard_layout_v<CommandHeader>, "CommandHeader is not standard layout");
static_assert(sizeof(CommandHeader) == sizeof(u32), "CommandHeader has incorrect size!");
static constexpr CommandHeader BuildCommandHeader(BufferMethods method, u32 arg_count,
SubmissionMode mode) {
CommandHeader result{};
result.method.Assign(static_cast<u32>(method));
result.arg_count.Assign(arg_count);
result.mode.Assign(mode);
return result;
}
class GPU;
using CommandList = std::vector<Tegra::CommandListHeader>;
struct CommandList final {
CommandList() = default;
explicit CommandList(std::size_t size) : command_lists(size) {}
explicit CommandList(std::vector<Tegra::CommandHeader>&& prefetch_command_list)
: prefetch_command_list{std::move(prefetch_command_list)} {}
void RefreshIntegrityChecks(GPU& gpu);
std::vector<Tegra::CommandListHeader> command_lists;
std::vector<u64> command_list_hashes;
std::vector<Tegra::CommandHeader> prefetch_command_list;
};
/**
* The DmaPusher class implements DMA submission to FIFOs, providing an area of memory that the
@ -60,7 +105,7 @@ using CommandList = std::vector<Tegra::CommandListHeader>;
* See https://envytools.readthedocs.io/en/latest/hw/fifo/dma-pusher.html#fifo-dma-pusher for
* details on this implementation.
*/
class DmaPusher {
class DmaPusher final {
public:
explicit DmaPusher(Core::System& system, GPU& gpu);
~DmaPusher();

48
src/video_core/gpu.cpp
View file

@ -194,30 +194,6 @@ void GPU::SyncGuestHost() {
void GPU::OnCommandListEnd() {
renderer->Rasterizer().ReleaseFences();
}
// Note that, traditionally, methods are treated as 4-byte addressable locations, and hence
// their numbers are written down multiplied by 4 in Docs. Here we are not multiply by 4.
// So the values you see in docs might be multiplied by 4.
enum class BufferMethods {
BindObject = 0x0,
Nop = 0x2,
SemaphoreAddressHigh = 0x4,
SemaphoreAddressLow = 0x5,
SemaphoreSequence = 0x6,
SemaphoreTrigger = 0x7,
NotifyIntr = 0x8,
WrcacheFlush = 0x9,
Unk28 = 0xA,
UnkCacheFlush = 0xB,
RefCnt = 0x14,
SemaphoreAcquire = 0x1A,
SemaphoreRelease = 0x1B,
FenceValue = 0x1C,
FenceAction = 0x1D,
Unk78 = 0x1E,
Unk7c = 0x1F,
Yield = 0x20,
NonPullerMethods = 0x40,
};
enum class GpuSemaphoreOperation {
AcquireEqual = 0x1,
@ -277,7 +253,12 @@ void GPU::CallPullerMethod(const MethodCall& method_call) {
case BufferMethods::UnkCacheFlush:
case BufferMethods::WrcacheFlush:
case BufferMethods::FenceValue:
break;
case BufferMethods::FenceAction:
ProcessFenceActionMethod();
break;
case BufferMethods::WaitForInterrupt:
ProcessWaitForInterruptMethod();
break;
case BufferMethods::SemaphoreTrigger: {
ProcessSemaphoreTriggerMethod();
@ -391,6 +372,25 @@ void GPU::ProcessBindMethod(const MethodCall& method_call) {
}
}
void GPU::ProcessFenceActionMethod() {
switch (regs.fence_action.op) {
case FenceOperation::Acquire:
WaitFence(regs.fence_action.syncpoint_id, regs.fence_value);
break;
case FenceOperation::Increment:
IncrementSyncPoint(regs.fence_action.syncpoint_id);
break;
default:
UNIMPLEMENTED_MSG("Unimplemented operation {}",
static_cast<u32>(regs.fence_action.op.Value()));
}
}
void GPU::ProcessWaitForInterruptMethod() {
// TODO(bunnei) ImplementMe
LOG_WARNING(HW_GPU, "(STUBBED) called");
}
void GPU::ProcessSemaphoreTriggerMethod() {
const auto semaphoreOperationMask = 0xF;
const auto op =

25
src/video_core/gpu.h
View file

@ -263,6 +263,24 @@ public:
return use_nvdec;
}
enum class FenceOperation : u32 {
Acquire = 0,
Increment = 1,
};
union FenceAction {
u32 raw;
BitField<0, 1, FenceOperation> op;
BitField<8, 24, u32> syncpoint_id;
static constexpr CommandHeader Build(FenceOperation op, u32 syncpoint_id) {
FenceAction result{};
result.op.Assign(op);
result.syncpoint_id.Assign(syncpoint_id);
return {result.raw};
}
};
struct Regs {
static constexpr size_t NUM_REGS = 0x40;
@ -291,10 +309,7 @@ public:
u32 semaphore_acquire;
u32 semaphore_release;
u32 fence_value;
union {
BitField<4, 4, u32> operation;
BitField<8, 8, u32> id;
} fence_action;
FenceAction fence_action;
INSERT_UNION_PADDING_WORDS(0xE2);
// Puller state
@ -342,6 +357,8 @@ protected:
private:
void ProcessBindMethod(const MethodCall& method_call);
void ProcessFenceActionMethod();
void ProcessWaitForInterruptMethod();
void ProcessSemaphoreTriggerMethod();
void ProcessSemaphoreRelease();
void ProcessSemaphoreAcquire();