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Introduce page size constants and replace all usages of PAGE_SIZE

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Avoids using macros and results in code which looks slightly cleaner.
This commit is contained in:
Billy Laws 2022-08-31 13:08:28 +01:00
parent 30ec844a1b
commit 6359852652
11 changed files with 30 additions and 26 deletions
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6
app/src/main/cpp/skyline/common/base.h
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@ -42,6 +42,12 @@ namespace skyline {
constexpr i64 NsInSecond{1000000000}; //!< The amount of nanoseconds in a second
constexpr i64 NsInMillisecond{1000000}; //!< The amount of nanoseconds in a millisecond
constexpr i64 NsInDay{86400000000000UL}; //!< The amount of nanoseconds in a day
constexpr size_t AddressSpaceSize{1ULL << 39}; //!< The size of the host CPU AS in bytes
constexpr size_t PageSize{0x1000}; //!< The size of a host page
constexpr size_t PageSizeBits{12}; //!< log2(PageSize)
static_assert(PageSize == PAGE_SIZE);
}
namespace util {

2
app/src/main/cpp/skyline/common/utils.h
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@ -115,7 +115,7 @@ namespace skyline::util {
template<typename TypeVal>
requires IsPointerOrUnsignedIntegral<TypeVal>
constexpr bool IsPageAligned(TypeVal value) {
return IsAligned(value, PAGE_SIZE);
return IsAligned(value, constant::PageSize);
}
template<typename TypeVal>

4
app/src/main/cpp/skyline/gpu/buffer.cpp
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@ -9,8 +9,8 @@
namespace skyline::gpu {
void Buffer::SetupGuestMappings() {
u8 *alignedData{util::AlignDown(guest->data(), PAGE_SIZE)};
size_t alignedSize{static_cast<size_t>(util::AlignUp(guest->data() + guest->size(), PAGE_SIZE) - alignedData)};
u8 *alignedData{util::AlignDown(guest->data(), constant::PageSize)};
size_t alignedSize{static_cast<size_t>(util::AlignUp(guest->data() + guest->size(), constant::PageSize) - alignedData)};
alignedMirror = gpu.state.process->memory.CreateMirror(span<u8>{alignedData, alignedSize});
mirror = alignedMirror.subspan(static_cast<size_t>(guest->data() - alignedData), guest->size());

4
app/src/main/cpp/skyline/gpu/buffer_manager.h
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@ -16,10 +16,8 @@ namespace skyline::gpu {
std::mutex mutex; //!< Synchronizes access to the buffer mappings
std::vector<std::shared_ptr<Buffer>> bufferMappings; //!< A sorted vector of all buffer mappings
static constexpr size_t AddressSpaceSize{1ULL << 39}; //!< The size of the guest CPU AS in bytes
static constexpr size_t PageSizeBits{12}; //!< The size of a single page of the guest CPU AS as a power of two (4 KiB == 1 << 12)
static constexpr size_t L2EntryGranularity{19}; //!< The amount of AS (in bytes) a single L2 PTE covers (512 KiB == 1 << 19)
SegmentTable<Buffer*, AddressSpaceSize, PageSizeBits, L2EntryGranularity> bufferTable; //!< A page table of all buffer mappings for O(1) lookups on full matches
SegmentTable<Buffer *, constant::AddressSpaceSize, constant::PageSizeBits, L2EntryGranularity> bufferTable; //!< A page table of all buffer mappings for O(1) lookups on full matches
/**
* @brief A wrapper around a Buffer which locks it with the specified ContextTag

8
app/src/main/cpp/skyline/gpu/texture/texture.cpp
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@ -116,8 +116,8 @@ namespace skyline::gpu {
auto &mappings{guest->mappings};
if (mappings.size() == 1) {
auto mapping{mappings.front()};
u8 *alignedData{util::AlignDown(mapping.data(), PAGE_SIZE)};
size_t alignedSize{static_cast<size_t>(util::AlignUp(mapping.data() + mapping.size(), PAGE_SIZE) - alignedData)};
u8 *alignedData{util::AlignDown(mapping.data(), constant::PageSize)};
size_t alignedSize{static_cast<size_t>(util::AlignUp(mapping.data() + mapping.size(), constant::PageSize) - alignedData)};
alignedMirror = gpu.state.process->memory.CreateMirror(span<u8>{alignedData, alignedSize});
mirror = alignedMirror.subspan(static_cast<size_t>(mapping.data() - alignedData), mapping.size());
@ -125,7 +125,7 @@ namespace skyline::gpu {
std::vector<span<u8>> alignedMappings;
const auto &frontMapping{mappings.front()};
u8 *alignedData{util::AlignDown(frontMapping.data(), PAGE_SIZE)};
u8 *alignedData{util::AlignDown(frontMapping.data(), constant::PageSize)};
alignedMappings.emplace_back(alignedData, (frontMapping.data() + frontMapping.size()) - alignedData);
size_t totalSize{frontMapping.size()};
@ -137,7 +137,7 @@ namespace skyline::gpu {
const auto &backMapping{mappings.back()};
totalSize += backMapping.size();
alignedMappings.emplace_back(backMapping.data(), util::AlignUp(backMapping.size(), PAGE_SIZE));
alignedMappings.emplace_back(backMapping.data(), util::AlignUp(backMapping.size(), constant::PageSize));
alignedMirror = gpu.state.process->memory.CreateMirrors(alignedMappings);
mirror = alignedMirror.subspan(static_cast<size_t>(frontMapping.data() - alignedData), totalSize);

2
app/src/main/cpp/skyline/kernel/memory.cpp
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@ -266,6 +266,6 @@ namespace skyline::kernel {
size_t MemoryManager::GetSystemResourceUsage() {
std::shared_lock lock(mutex);
constexpr size_t KMemoryBlockSize{0x40};
return std::min(static_cast<size_t>(state.process->npdm.meta.systemResourceSize), util::AlignUp(chunks.size() * KMemoryBlockSize, PAGE_SIZE));
return std::min(static_cast<size_t>(state.process->npdm.meta.systemResourceSize), util::AlignUp(chunks.size() * KMemoryBlockSize, constant::PageSize));
}
}

2
app/src/main/cpp/skyline/kernel/types/KProcess.h
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@ -12,7 +12,7 @@
namespace skyline {
namespace constant {
constexpr u16 TlsSlotSize{0x200}; //!< The size of a single TLS slot
constexpr u8 TlsSlots{PAGE_SIZE / TlsSlotSize}; //!< The amount of TLS slots in a single page
constexpr u8 TlsSlots{constant::PageSize / TlsSlotSize}; //!< The amount of TLS slots in a single page
constexpr KHandle BaseHandleIndex{0xD000}; //!< The index of the base handle
}

6
app/src/main/cpp/skyline/loader/nso.cpp
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@ -38,18 +38,18 @@ namespace skyline::loader {
Executable executable{};
executable.text.contents = GetSegment(backing, header.text, header.flags.textCompressed ? header.textCompressedSize : 0);
executable.text.contents.resize(util::AlignUp(executable.text.contents.size(), PAGE_SIZE));
executable.text.contents.resize(util::AlignUp(executable.text.contents.size(), constant::PageSize));
executable.text.offset = header.text.memoryOffset;
executable.ro.contents = GetSegment(backing, header.ro, header.flags.roCompressed ? header.roCompressedSize : 0);
executable.ro.contents.resize(util::AlignUp(executable.ro.contents.size(), PAGE_SIZE));
executable.ro.contents.resize(util::AlignUp(executable.ro.contents.size(), constant::PageSize));
executable.ro.offset = header.ro.memoryOffset;
executable.data.contents = GetSegment(backing, header.data, header.flags.dataCompressed ? header.dataCompressedSize : 0);
executable.data.offset = header.data.memoryOffset;
// Data and BSS are aligned together
executable.bssSize = util::AlignUp(executable.data.contents.size() + header.bssSize, PAGE_SIZE) - executable.data.contents.size();
executable.bssSize = util::AlignUp(executable.data.contents.size() + header.bssSize, constant::PageSize) - executable.data.contents.size();
if (header.dynsym.offset + header.dynsym.size <= header.ro.decompressedSize && header.dynstr.offset + header.dynstr.size <= header.ro.decompressedSize) {
executable.dynsym = {header.dynsym.offset, header.dynsym.size};

10
app/src/main/cpp/skyline/nce.cpp
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@ -243,7 +243,7 @@ namespace skyline::nce {
offsets.push_back(instructionOffset);
}
}
return {util::AlignUp(size * sizeof(u32), PAGE_SIZE), offsets};
return {util::AlignUp(size * sizeof(u32), constant::PageSize), offsets};
}
void NCE::PatchCode(std::vector<u8> &text, u32 *patch, size_t patchSize, const std::vector<size_t> &offsets) {
@ -413,7 +413,7 @@ namespace skyline::nce {
auto reprotectIntervalsWithFunction = [&intervals](auto getProtection) {
for (auto region : intervals) {
region = region.Align(PAGE_SIZE);
region = region.Align(constant::PageSize);
mprotect(region.start, region.Size(), getProtection(region));
}
};
@ -472,7 +472,7 @@ namespace skyline::nce {
std::scoped_lock lock(trapMutex);
// Retrieve any callbacks for the page that was faulted
auto[entries, intervals]{trapMap.GetAlignedRecursiveRange<PAGE_SIZE>(address)};
auto[entries, intervals]{trapMap.GetAlignedRecursiveRange<constant::PageSize>(address)};
if (entries.empty())
return false; // There's no callbacks associated with this page
@ -543,10 +543,10 @@ namespace skyline::nce {
TRACE_EVENT("host", "NCE::PageOutRegions");
std::scoped_lock lock{trapMutex};
for (auto region : handle->intervals) {
auto freeStart{util::AlignUp(region.start, PAGE_SIZE)}, freeEnd{util::AlignDown(region.end, PAGE_SIZE)}; // We want to avoid the first and last page as they may contain unrelated data
auto freeStart{util::AlignUp(region.start, constant::PageSize)}, freeEnd{util::AlignDown(region.end, constant::PageSize)}; // We want to avoid the first and last page as they may contain unrelated data
ssize_t freeSize{freeEnd - freeStart};
constexpr ssize_t MinimumPageoutSize{PAGE_SIZE}; //!< The minimum size to page out, we don't want to page out small intervals for performance reasons
constexpr ssize_t MinimumPageoutSize{constant::PageSize}; //!< The minimum size to page out, we don't want to page out small intervals for performance reasons
if (freeSize > MinimumPageoutSize)
state.process->memory.FreeMemory(span<u8>{freeStart, static_cast<size_t>(freeSize)});
}

6
app/src/main/cpp/skyline/services/nvdrv/core/nvmap.cpp
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@ -22,7 +22,7 @@ namespace skyline::service::nvdrv::core {
flags = pFlags;
kind = pKind;
align = pAlign < PAGE_SIZE ? PAGE_SIZE : pAlign;
align = pAlign < constant::PageSize ? constant::PageSize : pAlign;
// This flag is only applicable for handles with an address passed
if (pAddress)
@ -30,7 +30,7 @@ namespace skyline::service::nvdrv::core {
else
throw exception("Mapping nvmap handles without a CPU side address is unimplemented!");
size = util::AlignUp(size, PAGE_SIZE);
size = util::AlignUp(size, constant::PageSize);
alignedSize = util::AlignUp(size, align);
address = pAddress;
@ -56,7 +56,7 @@ namespace skyline::service::nvdrv::core {
return PosixResult::Success;
}
NvMap::NvMap(const DeviceState &state) : state(state), smmuAllocator(PAGE_SIZE) {}
NvMap::NvMap(const DeviceState &state) : state(state), smmuAllocator(soc::SmmuPageSize) {}
void NvMap::AddHandle(std::shared_ptr<Handle> handleDesc) {
std::scoped_lock lock(handlesLock);

6
app/src/main/cpp/skyline/services/nvdrv/devices/nvmap.cpp
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@ -9,7 +9,7 @@ namespace skyline::service::nvdrv::device {
NvMap::NvMap(const DeviceState &state, Driver &driver, Core &core, const SessionContext &ctx) : NvDevice(state, driver, core, ctx) {}
PosixResult NvMap::Create(In<u32> size, Out<NvMapCore::Handle::Id> handle) {
auto handleDesc{core.nvMap.CreateHandle(util::AlignUp(static_cast<u32>(size), PAGE_SIZE))};
auto handleDesc{core.nvMap.CreateHandle(util::AlignUp(static_cast<u32>(size), constant::PageSize))};
if (handleDesc) {
(*handleDesc)->origSize = size; // Orig size is the unaligned size
handle = (*handleDesc)->id;
@ -51,8 +51,8 @@ namespace skyline::service::nvdrv::device {
return PosixResult::InvalidArgument;
// Force page size alignment at a minimum
if (align < PAGE_SIZE) [[unlikely]]
align = PAGE_SIZE;
if (align < constant::PageSize) [[unlikely]]
align = constant::PageSize;
auto handleDesc{core.nvMap.GetHandle(handle)};
if (!handleDesc) [[unlikely]]