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Implement pre-wait and post-increment syncpoint operations in submit

Browse Source 
These are used by both OpenGL and Vulkan games as opposed to including
the operations inside the main commandbuffer.
This commit is contained in:
Billy Laws 2021-10-11 20:08:42 +01:00
parent 9b9bf8d300
commit fc017e1e95
11 changed files with 224 additions and 70 deletions
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1
app/CMakeLists.txt
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@ -107,6 +107,7 @@ add_library(skyline SHARED
${source_DIR}/skyline/soc/gm20b/channel.cpp
${source_DIR}/skyline/soc/gm20b/gpfifo.cpp
${source_DIR}/skyline/soc/gm20b/gmmu.cpp
${source_DIR}/skyline/soc/gm20b/engines/gpfifo.cpp
${source_DIR}/skyline/soc/gm20b/engines/maxwell_3d.cpp
${source_DIR}/skyline/soc/gm20b/engines/maxwell/macro_interpreter.cpp
${source_DIR}/skyline/input/npad.cpp

10
app/src/main/cpp/skyline/common/circular_queue.h
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@ -76,12 +76,14 @@ namespace skyline {
void Push(const Type &item) {
std::unique_lock lock(productionMutex);
end = (end == reinterpret_cast<Type *>(vector.end().base()) - 1) ? reinterpret_cast<Type *>(vector.begin().base()) : end;
if (start == end + 1) {
auto next{end + 1};
next = (next == reinterpret_cast<Type *>(vector.end().base())) ? reinterpret_cast<Type *>(vector.begin().base()) : next;
if (next == start) {
std::unique_lock consumeLock(consumptionMutex);
consumeCondition.wait(consumeLock, [=]() { return start != end + 1; });
consumeCondition.wait(consumeLock, [=]() { return next != start; });
}
*end = item;
*next = item;
end = next;
produceCondition.notify_one();
}

28
app/src/main/cpp/skyline/services/nvdrv/devices/nvhost/as_gpu.cpp
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@ -37,6 +37,7 @@ namespace skyline::service::nvdrv::device::nvhost {
}
gpuCh.asCtx = asCtx;
gpuCh.asAllocator = vm.smallPageAllocator;
} catch (const std::out_of_range &e) {
state.logger->Warn("Attempting to bind AS to an invalid channel: {}", channelFd);
return PosixResult::InvalidArgument;
@ -62,17 +63,12 @@ namespace skyline::service::nvdrv::device::nvhost {
u32 pageSizeBits{pageSize == VM::PageSize ? VM::PageSizeBits : vm.bigPageSizeBits};
auto &allocator{[&] () -> auto & {
if (pageSize == VM::PageSize)
return vm.smallPageAllocator;
else
return vm.bigPageAllocator;
}()};
auto &allocator{pageSize == VM::PageSize ? *vm.smallPageAllocator : *vm.bigPageAllocator};
if (flags.fixed)
allocator->AllocateFixed(offset >> pageSizeBits, pages);
allocator.AllocateFixed(offset >> pageSizeBits, pages);
else
offset = static_cast<u64>(allocator->Allocate(pages)) << pageSizeBits;
offset = static_cast<u64>(allocator.Allocate(pages)) << pageSizeBits;
u64 size{static_cast<u64>(pages) * pageSize};
@ -92,10 +88,10 @@ namespace skyline::service::nvdrv::device::nvhost {
auto mapping{mappingMap.at(offset)};
if (!mapping->fixed) {
auto &allocator{mapping->bigPage ? vm.bigPageAllocator : vm.smallPageAllocator};
auto &allocator{mapping->bigPage ? *vm.bigPageAllocator : *vm.smallPageAllocator};
u32 pageSizeBits{mapping->bigPage ? vm.bigPageSizeBits : VM::PageSizeBits};
allocator->Free(mapping->offset >> pageSizeBits, mapping->size >> pageSizeBits);
allocator.Free(mapping->offset >> pageSizeBits, mapping->size >> pageSizeBits);
}
// Sparse mappings shouldn't be fully unmapped, just returned to their sparse state
@ -129,10 +125,10 @@ namespace skyline::service::nvdrv::device::nvhost {
if (allocation.sparse)
asCtx->gmmu.Unmap(offset, allocation.size);
auto &allocator{pageSize == VM::PageSize ? vm.smallPageAllocator : vm.bigPageAllocator};
auto &allocator{pageSize == VM::PageSize ? *vm.smallPageAllocator : *vm.bigPageAllocator};
u32 pageSizeBits{pageSize == VM::PageSize ? VM::PageSizeBits : vm.bigPageSizeBits};
allocator->Free(offset >> pageSizeBits, allocation.size >> pageSizeBits);
allocator.Free(offset >> pageSizeBits, allocation.size >> pageSizeBits);
allocationMap.erase(offset);
} catch (const std::out_of_range &e) {
return PosixResult::InvalidArgument;
@ -153,10 +149,10 @@ namespace skyline::service::nvdrv::device::nvhost {
auto mapping{mappingMap.at(offset)};
if (!mapping->fixed) {
auto &allocator{mapping->bigPage ? vm.bigPageAllocator : vm.smallPageAllocator};
auto &allocator{mapping->bigPage ? *vm.bigPageAllocator : *vm.smallPageAllocator};
u32 pageSizeBits{mapping->bigPage ? vm.bigPageSizeBits : VM::PageSizeBits};
allocator->Free(mapping->offset >> pageSizeBits, mapping->size >> pageSizeBits);
allocator.Free(mapping->offset >> pageSizeBits, mapping->size >> pageSizeBits);
}
// Sparse mappings shouldn't be fully unmapped, just returned to their sparse state
@ -233,11 +229,11 @@ namespace skyline::service::nvdrv::device::nvhost {
throw exception("Invalid handle alignment: 0x{:X}", h->align);
}()};
auto &allocator{bigPage ? vm.bigPageAllocator : vm.smallPageAllocator};
auto &allocator{bigPage ? *vm.bigPageAllocator : *vm.smallPageAllocator};
u32 pageSize{bigPage ? vm.bigPageSize : VM::PageSize};
u32 pageSizeBits{bigPage ? vm.bigPageSizeBits : VM::PageSizeBits};
offset = static_cast<u64>(allocator->Allocate(util::AlignUp(size, pageSize) >> pageSizeBits)) << pageSizeBits;
offset = static_cast<u64>(allocator.Allocate(util::AlignUp(size, pageSize) >> pageSizeBits)) << pageSizeBits;
asCtx->gmmu.Map(offset, cpuPtr, size);
auto mapping{std::make_shared<Mapping>(cpuPtr, offset, size, false, bigPage, false)};

8
app/src/main/cpp/skyline/services/nvdrv/devices/nvhost/as_gpu.h
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@ -8,6 +8,8 @@
#include <services/nvdrv/devices/nvdevice.h>
namespace skyline::service::nvdrv::device::nvhost {
class GpuChannel;
/**
* @brief nvhost::AsGpu (/dev/nvhost-as-gpu) is used to access a GPU virtual address space
* @url https://switchbrew.org/wiki/NV_services#.2Fdev.2Fnvhost-as-gpu
@ -59,14 +61,16 @@ namespace skyline::service::nvdrv::device::nvhost {
using Allocator = FlatAllocator<u32, 0, 32>;
std::unique_ptr<Allocator> bigPageAllocator{};
std::unique_ptr<Allocator> smallPageAllocator{};
std::unique_ptr<Allocator> bigPageAllocator;
std::shared_ptr<Allocator> smallPageAllocator; // Shared as this is also used by nvhost::GpuChannel
bool initialised{};
} vm;
std::shared_ptr<soc::gm20b::AddressSpaceContext> asCtx;
friend GpuChannel;
void FreeMappingLocked(u64 offset);
public:

97
app/src/main/cpp/skyline/services/nvdrv/devices/nvhost/gpu_channel.cpp
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@ -14,6 +14,57 @@ namespace skyline::service::nvdrv::device::nvhost {
channelSyncpoint = core.syncpointManager.AllocateSyncpoint(false);
}
static constexpr size_t SyncpointWaitCmdLen{4};
static void AddSyncpointWaitCmd(span<u32> mem, Fence fence) {
size_t offset{};
// gpfifo.regs.syncpoint.payload = fence.threshold
mem[offset++] = 0x2001001C;
mem[offset++] = fence.threshold;
/*
gpfifo.regs.syncpoint = {
.index = fence.id
.operation = SyncpointOperation::Wait
.waitSwitch = SyncpointWaitSwitch::En
}
Then wait is triggered
*/
mem[offset++] = 0x2001001D;
mem[offset++] = (fence.id << 8) | 0x10;
}
static constexpr size_t SyncpointIncrCmdMaxLen{8};
static void AddSyncpointIncrCmd(span<u32> mem, Fence fence, bool wfi) {
size_t offset{};
if (wfi) {
// gpfifo.regs.wfi.scope = WfiScope::CurrentScgType
// Then WFI is triggered
mem[offset++] = 0x2001001E;
mem[offset++] = 0;
}
// gpfifo.regs.syncpoint.payload = 0
mem[offset++] = 0x2001001C;
mem[offset++] = 0;
/*
gpfifo.regs.syncpoint = {
.index = fence.id
.operation = SyncpointOperation::Incr
}
Then increment is triggered
*/
mem[offset++] = 0x2001001D;
mem[offset++] = (fence.id << 8) | 0x1;
// Repeat twice, likely due to HW bugs
mem[offset++] = 0x2001001D;
mem[offset++] = (fence.id << 8) | 0x1;
}
PosixResult GpuChannel::SetNvmapFd(In<core::NvMap::Handle::Id> id) {
state.logger->Debug("id: {}", id);
return PosixResult::Success;
@ -35,16 +86,24 @@ namespace skyline::service::nvdrv::device::nvhost {
if (numEntries > gpEntries.size())
throw exception("GpEntry size mismatch!");
std::scoped_lock lock(channelMutex);
if (flags.fenceWait) {
if (flags.incrementWithValue)
return PosixResult::InvalidArgument;
if (!core.syncpointManager.IsFenceSignalled(fence))
throw exception("Waiting on a fence through SubmitGpfifo is unimplemented");
}
if (!core.syncpointManager.IsFenceSignalled(fence)) {
// Wraparound
if (pushBufferMemoryOffset + SyncpointWaitCmdLen >= pushBufferMemory.size())
pushBufferMemoryOffset = 0;
{
std::scoped_lock lock(channelMutex);
AddSyncpointWaitCmd(span(pushBufferMemory).subspan(pushBufferMemoryOffset, SyncpointWaitCmdLen), fence);
channelCtx->gpfifo.Push(soc::gm20b::GpEntry(pushBufferAddr + pushBufferMemoryOffset * sizeof(u32), SyncpointWaitCmdLen));
// Increment offset
pushBufferMemoryOffset += SyncpointWaitCmdLen;
}
}
channelCtx->gpfifo.Push(gpEntries.subspan(0, numEntries));
@ -52,10 +111,18 @@ namespace skyline::service::nvdrv::device::nvhost {
u32 increment{(flags.fenceIncrement ? 2 : 0) + (flags.incrementWithValue ? fence.threshold : 0)};
fence.threshold = core.syncpointManager.IncrementSyncpointMaxExt(channelSyncpoint, increment);
}
if (flags.fenceIncrement)
throw exception("Incrementing a fence through SubmitGpfifo is unimplemented");
if (flags.fenceIncrement) {
// Wraparound
if (pushBufferMemoryOffset + SyncpointIncrCmdMaxLen >= pushBufferMemory.size())
pushBufferMemoryOffset = 0;
AddSyncpointIncrCmd(span(pushBufferMemory).subspan(pushBufferMemoryOffset, SyncpointIncrCmdMaxLen), fence, !flags.suppressWfi);
channelCtx->gpfifo.Push(soc::gm20b::GpEntry(pushBufferAddr + pushBufferMemoryOffset * sizeof(u32), SyncpointIncrCmdMaxLen));
// Increment offset
pushBufferMemoryOffset += SyncpointIncrCmdMaxLen;
}
flags.raw = 0;
@ -90,7 +157,7 @@ namespace skyline::service::nvdrv::device::nvhost {
state.logger->Debug("numEntries: {}, numJobs: {}, flags: 0x{:X}", numEntries, numJobs, flags);
std::scoped_lock lock(channelMutex);
if (!asCtx) {
if (!asCtx || !asAllocator) {
state.logger->Warn("Trying to allocate a channel without a bound address space");
return PosixResult::InvalidArgument;
}
@ -104,6 +171,18 @@ namespace skyline::service::nvdrv::device::nvhost {
fence = core.syncpointManager.GetSyncpointFence(channelSyncpoint);
// Allocate space for one wait and incr for each entry, though we're not likely to hit this in practice
size_t pushBufferWords{numEntries * SyncpointIncrCmdMaxLen + numEntries * SyncpointWaitCmdLen};
size_t pushBufferSize{pushBufferWords * sizeof(u32)};
pushBufferMemory.resize(pushBufferWords);
// Allocate pages in the GPU AS
pushBufferAddr = static_cast<u64>(asAllocator->Allocate((pushBufferWords >> AsGpu::VM::PageSizeBits) + 1)) << AsGpu::VM::PageSizeBits;
// Map onto the GPU
asCtx->gmmu.Map(pushBufferAddr, reinterpret_cast<u8 *>(pushBufferMemory.data()), pushBufferSize);
return PosixResult::Success;
}

11
app/src/main/cpp/skyline/services/nvdrv/devices/nvhost/gpu_channel.h
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@ -6,11 +6,10 @@
#include <services/common/fence.h>
#include <soc/gm20b/engines/maxwell_3d.h> // TODO: remove
#include <soc/gm20b/channel.h>
#include "services/nvdrv/devices/nvdevice.h"
#include <services/nvdrv/devices/nvdevice.h>
#include "as_gpu.h"
namespace skyline::service::nvdrv::device::nvhost {
class AsGpu;
/**
* @brief nvhost::GpuChannel is used to create and submit commands to channels which are effectively GPU processes
* @url https://switchbrew.org/wiki/NV_services#Channels
@ -25,8 +24,14 @@ namespace skyline::service::nvdrv::device::nvhost {
std::shared_ptr<type::KEvent> errorNotifierEvent;
std::shared_ptr<soc::gm20b::AddressSpaceContext> asCtx;
std::shared_ptr<AsGpu::VM::Allocator> asAllocator;
std::unique_ptr<soc::gm20b::ChannelContext> channelCtx;
u64 pushBufferAddr{};
size_t pushBufferMemoryOffset{};
std::vector<u32> pushBufferMemory;
friend AsGpu;
public:

50
app/src/main/cpp/skyline/soc/gm20b/engines/gpfifo.cpp Normal file
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@ -0,0 +1,50 @@
// SPDX-License-Identifier: MPL-2.0
// Copyright © 2021 Skyline Team and Contributors (https://github.com/skyline-emu/)
#pragma once
#include <soc.h>
#include <soc/gm20b/channel.h>
#include "gpfifo.h"
namespace skyline::soc::gm20b::engine {
GPFIFO::GPFIFO(const DeviceState &state, ChannelContext &channelCtx) : Engine(state), channelCtx(channelCtx) {}
void GPFIFO::CallMethod(u32 method, u32 argument, bool lastCall) {
state.logger->Debug("Called method in GPFIFO: 0x{:X} args: 0x{:X}", method, argument);
registers.raw[method] = argument;
#define GPFIFO_OFFSET(field) U32_OFFSET(Registers, field)
#define GPFIFO_STRUCT_OFFSET(field, member) GPFIFO_OFFSET(field) + U32_OFFSET(typeof(Registers::field), member)
#define GPFIFO_CASE_BASE(fieldName, fieldAccessor, offset, content) case offset: { \
auto fieldName{util::BitCast<typeof(registers.fieldAccessor)>(argument)}; \
content \
return; \
}
#define GPFIFO_CASE(field, content) GPFIFO_CASE_BASE(field, field, GPFIFO_OFFSET(field), content)
#define GPFIFO_STRUCT_CASE(field, member, content) GPFIFO_CASE_BASE(member, field.member, GPFIFO_STRUCT_OFFSET(field, member), content)
switch (method) {
GPFIFO_STRUCT_CASE(syncpoint, action, {
if (action.operation == Registers::SyncpointOperation::Incr) {
state.logger->Debug("Increment syncpoint: {}", +action.index);
channelCtx.executor.Execute();
state.soc->host1x.syncpoints.at(action.index).Increment();
} else if (action.operation == Registers::SyncpointOperation::Wait) {
state.logger->Debug("Wait syncpoint: {}, thresh: {}", +action.index, registers.syncpoint.payload);
// Wait forever for another channel to increment
state.soc->host1x.syncpoints.at(action.index).Wait(registers.syncpoint.payload, std::chrono::steady_clock::duration::max());
}
})
}
#undef GPFIFO_STRUCT_CASE
#undef GPFIFO_CASE
#undef GPFIFO_CASE_BASE
#undef GPFIFO_STRUCT_OFFSET
#undef GPFIFO_OFFSET
};
}

58
app/src/main/cpp/skyline/soc/gm20b/engines/gpfifo.h
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@ -5,6 +5,10 @@
#include "engine.h"
namespace skyline::soc::gm20b {
struct ChannelContext;
}
namespace skyline::soc::gm20b::engine {
/**
* @brief The GPFIFO engine handles managing macros and semaphores
@ -93,24 +97,24 @@ namespace skyline::soc::gm20b::engine {
u16 nvClass : 16;
u8 engine : 5;
u16 _pad_ : 11;
} setObject;
} setObject; // 0x0
u32 illegal;
u32 nop;
u32 _pad0_;
u32 illegal; // 0x1
u32 nop; // 0x2
u32 _pad0_; // 0x3
struct {
struct {
u32 offsetUpper : 8;
u32 _pad0_ : 24;
};
}; // 0x4
struct {
u8 _pad1_ : 2;
u32 offsetLower : 30;
};
}; // 0x5
u32 payload;
u32 payload; // 0x6
struct {
SemaphoreOperation operation : 5;
@ -123,54 +127,52 @@ namespace skyline::soc::gm20b::engine {
u8 _pad5_ : 2;
SemaphoreReduction reduction : 4;
SemaphoreFormat format : 1;
};
}; // 0x7
} semaphore;
u32 nonStallInterrupt;
u32 fbFlush;
u32 _pad1_[2];
u32 memOpC;
u32 memOpD;
u32 _pad2_[6];
u32 setReference;
u32 _pad3_[7];
u32 nonStallInterrupt; // 0x8
u32 fbFlush; // 0x9
u32 _pad1_[2]; // 0xA
u32 memOpC; // 0xC
u32 memOpD; // 0xD
u32 _pad2_[6]; // 0xE
u32 setReference; // 0x14
u32 _pad3_[7]; // 0x15
struct {
u32 payload;
u32 payload; // 0x1C
struct {
SyncpointOperation operation : 1;
u8 _pad0_ : 3;
SyncpointWaitSwitch waitSwitch : 1;
SyncpointWaitSwitch waitSwitch : 1; //!< If the PBDMA unit can switch to a different timeslice group (TSG) while waiting on a syncpoint
u8 _pad1_ : 3;
u16 index : 12;
u16 _pad2_ : 12;
};
} action; // 0x1D
} syncpoint;
struct {
WfiScope scope : 1;
u32 _pad_ : 31;
} wfi;
} wfi; // 0x1E
u32 crcCheck;
u32 crcCheck; // 0x1F
struct {
YieldOp op : 2;
u32 _pad_ : 30;
} yield;
} yield; // 0x20
};
} registers{};
static_assert(sizeof(Registers) == (RegisterCount * sizeof(u32)));
#pragma pack(pop)
ChannelContext &channelCtx;
public:
GPFIFO(const DeviceState &state) : Engine(state) {}
GPFIFO(const DeviceState &state, ChannelContext &channelCtx);
void CallMethod(u32 method, u32 argument, bool lastCall) {
state.logger->Debug("Called method in GPFIFO: 0x{:X} args: 0x{:X}", method, argument);
registers.raw[method] = argument;
};
void CallMethod(u32 method, u32 argument, bool lastCall);
};
}

2
app/src/main/cpp/skyline/soc/gm20b/engines/maxwell_3d.cpp
View File

@ -244,7 +244,7 @@ namespace skyline::soc::gm20b::engine::maxwell3d {
})
MAXWELL3D_CASE(syncpointAction, {
state.logger->Debug("Increment syncpoint: {}", static_cast<u16>(syncpointAction.id));
state.logger->Debug("Increment syncpoint: {}", +syncpointAction.id);
channelCtx.executor.Execute();
state.soc->host1x.syncpoints.at(syncpointAction.id).Increment();
})

8
app/src/main/cpp/skyline/soc/gm20b/gpfifo.cpp
View File

@ -61,7 +61,7 @@ namespace skyline::soc::gm20b {
ChannelGpfifo::ChannelGpfifo(const DeviceState &state, ChannelContext &channelCtx, size_t numEntries) :
state(state),
gpfifoEngine(state),
gpfifoEngine(state, channelCtx),
channelCtx(channelCtx),
gpEntries(numEntries),
thread(std::thread(&ChannelGpfifo::Run, this)) {}
@ -155,7 +155,7 @@ namespace skyline::soc::gm20b {
try {
signal::SetSignalHandler({SIGINT, SIGILL, SIGTRAP, SIGBUS, SIGFPE, SIGSEGV}, signal::ExceptionalSignalHandler);
gpEntries.Process([this](GpEntry gpEntry) {
state.logger->Debug("Processing pushbuffer: 0x{:X}", gpEntry.Address());
state.logger->Debug("Processing pushbuffer: 0x{:X}, Size: 0x{:X}", gpEntry.Address(), +gpEntry.size);
Process(gpEntry);
});
} catch (const signal::SignalException &e) {
@ -175,6 +175,10 @@ namespace skyline::soc::gm20b {
gpEntries.Append(entries);
}
void ChannelGpfifo::Push(GpEntry entry) {
gpEntries.Push(entry);
}
ChannelGpfifo::~ChannelGpfifo() {
if (thread.joinable()) {
pthread_kill(thread.native_handle(), SIGINT);

15
app/src/main/cpp/skyline/soc/gm20b/gpfifo.h
View File

@ -21,7 +21,7 @@ namespace skyline::soc::gm20b {
};
union {
u32 entry0;
u32 entry0{};
struct {
Fetch fetch : 1;
@ -53,7 +53,7 @@ namespace skyline::soc::gm20b {
};
union {
u32 entry1;
u32 entry1{};
struct {
union {
@ -68,6 +68,12 @@ namespace skyline::soc::gm20b {
};
};
constexpr GpEntry(u64 gpuAddress, u32 pSize) {
getHi = static_cast<u8>(gpuAddress >> 32);
get = static_cast<u32>(gpuAddress >> 2);
size = pSize;
}
constexpr u64 Address() const {
return (static_cast<u64>(getHi) << 32) | (static_cast<u64>(get) << 2);
}
@ -115,5 +121,10 @@ namespace skyline::soc::gm20b {
* @brief Pushes a list of entries to the FIFO, these commands will be executed on calls to 'Step'
*/
void Push(span<GpEntry> entries);
/**
* @brief Pushes a single entry to the FIFO, these commands will be executed on calls to 'Process'
*/
void Push(GpEntry entries);
};
}