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Merge pull request #2748 from FernandoS27/align-memory 

VM_Manager: Align allocated host physical memory to 256bytes
This commit is contained in:
bunnei 2019-08-21 12:10:10 -04:00 committed by GitHub
parent d654b3d82e febb88efc4
commit b4a8cfbd00
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GPG Key ID: 4AEE18F83AFDEB23
15 changed files with 119 additions and 37 deletions
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60
src/common/alignment.h
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@ -3,6 +3,7 @@
#pragma once
#include <cstddef>
#include <memory>
#include <type_traits>
namespace Common {
@ -37,4 +38,63 @@ constexpr bool IsWordAligned(T value) {
return (value & 0b11) == 0;
}
template <typename T, std::size_t Align = 16>
class AlignmentAllocator {
public:
using value_type = T;
using size_type = std::size_t;
using difference_type = std::ptrdiff_t;
using pointer = T*;
using const_pointer = const T*;
using reference = T&;
using const_reference = const T&;
public:
pointer address(reference r) noexcept {
return std::addressof(r);
}
const_pointer address(const_reference r) const noexcept {
return std::addressof(r);
}
pointer allocate(size_type n) {
return static_cast<pointer>(::operator new (n, std::align_val_t{Align}));
}
void deallocate(pointer p, size_type) {
::operator delete (p, std::align_val_t{Align});
}
void construct(pointer p, const value_type& wert) {
new (p) value_type(wert);
}
void destroy(pointer p) {
p->~value_type();
}
size_type max_size() const noexcept {
return size_type(-1) / sizeof(value_type);
}
template <typename T2>
struct rebind {
using other = AlignmentAllocator<T2, Align>;
};
bool operator!=(const AlignmentAllocator<T, Align>& other) const noexcept {
return !(*this == other);
}
// Returns true if and only if storage allocated from *this
// can be deallocated from other, and vice versa.
// Always returns true for stateless allocators.
bool operator==(const AlignmentAllocator<T, Align>& other) const noexcept {
return true;
}
};
} // namespace Common

3
src/core/hle/kernel/code_set.h
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@ -8,6 +8,7 @@
#include <vector>
#include "common/common_types.h"
#include "core/hle/kernel/physical_memory.h"
namespace Kernel {
@ -77,7 +78,7 @@ struct CodeSet final {
}
/// The overall data that backs this code set.
std::vector<u8> memory;
Kernel::PhysicalMemory memory;
/// The segments that comprise this code set.
std::array<Segment, 3> segments;

19
src/core/hle/kernel/physical_memory.h Normal file
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@ -0,0 +1,19 @@
// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/alignment.h"
namespace Kernel {
// This encapsulation serves 2 purposes:
// - First, to encapsulate host physical memory under a single type and set an
// standard for managing it.
// - Second to ensure all host backing memory used is aligned to 256 bytes due
// to strict alignment restrictions on GPU memory.
using PhysicalMemory = std::vector<u8, Common::AlignmentAllocator<u8, 256>>;
} // namespace Kernel

6
src/core/hle/kernel/process.cpp
View File

@ -247,7 +247,7 @@ VAddr Process::CreateTLSRegion() {
ASSERT(region_address.Succeeded());
const auto map_result = vm_manager.MapMemoryBlock(
*region_address, std::make_shared<std::vector<u8>>(Memory::PAGE_SIZE), 0,
*region_address, std::make_shared<PhysicalMemory>(Memory::PAGE_SIZE), 0,
Memory::PAGE_SIZE, MemoryState::ThreadLocal);
ASSERT(map_result.Succeeded());
@ -277,7 +277,7 @@ void Process::FreeTLSRegion(VAddr tls_address) {
}
void Process::LoadModule(CodeSet module_, VAddr base_addr) {
const auto memory = std::make_shared<std::vector<u8>>(std::move(module_.memory));
const auto memory = std::make_shared<PhysicalMemory>(std::move(module_.memory));
const auto MapSegment = [&](const CodeSet::Segment& segment, VMAPermission permissions,
MemoryState memory_state) {
@ -327,7 +327,7 @@ void Process::AllocateMainThreadStack(u64 stack_size) {
// Allocate and map the main thread stack
const VAddr mapping_address = vm_manager.GetTLSIORegionEndAddress() - main_thread_stack_size;
vm_manager
.MapMemoryBlock(mapping_address, std::make_shared<std::vector<u8>>(main_thread_stack_size),
.MapMemoryBlock(mapping_address, std::make_shared<PhysicalMemory>(main_thread_stack_size),
0, main_thread_stack_size, MemoryState::Stack)
.Unwrap();
}

6
src/core/hle/kernel/shared_memory.cpp
View File

@ -28,7 +28,7 @@ SharedPtr<SharedMemory> SharedMemory::Create(KernelCore& kernel, Process* owner_
shared_memory->other_permissions = other_permissions;
if (address == 0) {
shared_memory->backing_block = std::make_shared<std::vector<u8>>(size);
shared_memory->backing_block = std::make_shared<Kernel::PhysicalMemory>(size);
shared_memory->backing_block_offset = 0;
// Refresh the address mappings for the current process.
@ -59,8 +59,8 @@ SharedPtr<SharedMemory> SharedMemory::Create(KernelCore& kernel, Process* owner_
}
SharedPtr<SharedMemory> SharedMemory::CreateForApplet(
KernelCore& kernel, std::shared_ptr<std::vector<u8>> heap_block, std::size_t offset, u64 size,
MemoryPermission permissions, MemoryPermission other_permissions, std::string name) {
KernelCore& kernel, std::shared_ptr<Kernel::PhysicalMemory> heap_block, std::size_t offset,
u64 size, MemoryPermission permissions, MemoryPermission other_permissions, std::string name) {
SharedPtr<SharedMemory> shared_memory(new SharedMemory(kernel));
shared_memory->owner_process = nullptr;

11
src/core/hle/kernel/shared_memory.h
View File

@ -10,6 +10,7 @@
#include "common/common_types.h"
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/physical_memory.h"
#include "core/hle/kernel/process.h"
#include "core/hle/result.h"
@ -62,11 +63,9 @@ public:
* block.
* @param name Optional object name, used for debugging purposes.
*/
static SharedPtr<SharedMemory> CreateForApplet(KernelCore& kernel,
std::shared_ptr<std::vector<u8>> heap_block,
std::size_t offset, u64 size,
MemoryPermission permissions,
MemoryPermission other_permissions,
static SharedPtr<SharedMemory> CreateForApplet(
KernelCore& kernel, std::shared_ptr<Kernel::PhysicalMemory> heap_block, std::size_t offset,
u64 size, MemoryPermission permissions, MemoryPermission other_permissions,
std::string name = "Unknown Applet");
std::string GetTypeName() const override {
@ -135,7 +134,7 @@ private:
~SharedMemory() override;
/// Backing memory for this shared memory block.
std::shared_ptr<std::vector<u8>> backing_block;
std::shared_ptr<PhysicalMemory> backing_block;
/// Offset into the backing block for this shared memory.
std::size_t backing_block_offset = 0;
/// Size of the memory block. Page-aligned.

2
src/core/hle/kernel/transfer_memory.cpp
View File

@ -47,7 +47,7 @@ ResultCode TransferMemory::MapMemory(VAddr address, u64 size, MemoryPermission p
return ERR_INVALID_STATE;
}
backing_block = std::make_shared<std::vector<u8>>(size);
backing_block = std::make_shared<PhysicalMemory>(size);
const auto map_state = owner_permissions == MemoryPermission::None
? MemoryState::TransferMemoryIsolated

3
src/core/hle/kernel/transfer_memory.h
View File

@ -8,6 +8,7 @@
#include <vector>
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/physical_memory.h"
union ResultCode;
@ -82,7 +83,7 @@ private:
~TransferMemory() override;
/// Memory block backing this instance.
std::shared_ptr<std::vector<u8>> backing_block;
std::shared_ptr<PhysicalMemory> backing_block;
/// The base address for the memory managed by this instance.
VAddr base_address = 0;

15
src/core/hle/kernel/vm_manager.cpp
View File

@ -5,6 +5,7 @@
#include <algorithm>
#include <iterator>
#include <utility>
#include "common/alignment.h"
#include "common/assert.h"
#include "common/logging/log.h"
#include "common/memory_hook.h"
@ -103,7 +104,7 @@ bool VMManager::IsValidHandle(VMAHandle handle) const {
}
ResultVal<VMManager::VMAHandle> VMManager::MapMemoryBlock(VAddr target,
std::shared_ptr<std::vector<u8>> block,
std::shared_ptr<PhysicalMemory> block,
std::size_t offset, u64 size,
MemoryState state, VMAPermission perm) {
ASSERT(block != nullptr);
@ -260,7 +261,7 @@ ResultVal<VAddr> VMManager::SetHeapSize(u64 size) {
if (heap_memory == nullptr) {
// Initialize heap
heap_memory = std::make_shared<std::vector<u8>>(size);
heap_memory = std::make_shared<PhysicalMemory>(size);
heap_end = heap_region_base + size;
} else {
UnmapRange(heap_region_base, GetCurrentHeapSize());
@ -341,7 +342,7 @@ ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) {
const auto map_size = std::min(end_addr - cur_addr, vma_end - cur_addr);
if (vma.state == MemoryState::Unmapped) {
const auto map_res =
MapMemoryBlock(cur_addr, std::make_shared<std::vector<u8>>(map_size, 0), 0,
MapMemoryBlock(cur_addr, std::make_shared<PhysicalMemory>(map_size, 0), 0,
map_size, MemoryState::Heap, VMAPermission::ReadWrite);
result = map_res.Code();
if (result.IsError()) {
@ -442,7 +443,7 @@ ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) {
if (result.IsError()) {
for (const auto [map_address, map_size] : unmapped_regions) {
const auto remap_res =
MapMemoryBlock(map_address, std::make_shared<std::vector<u8>>(map_size, 0), 0,
MapMemoryBlock(map_address, std::make_shared<PhysicalMemory>(map_size, 0), 0,
map_size, MemoryState::Heap, VMAPermission::None);
ASSERT_MSG(remap_res.Succeeded(), "UnmapPhysicalMemory re-map on error");
}
@ -593,7 +594,7 @@ ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, Mem
ASSERT_MSG(vma_offset + size <= vma->second.size,
"Shared memory exceeds bounds of mapped block");
const std::shared_ptr<std::vector<u8>>& backing_block = vma->second.backing_block;
const std::shared_ptr<PhysicalMemory>& backing_block = vma->second.backing_block;
const std::size_t backing_block_offset = vma->second.offset + vma_offset;
CASCADE_RESULT(auto new_vma,
@ -606,7 +607,7 @@ ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, Mem
return RESULT_SUCCESS;
}
void VMManager::RefreshMemoryBlockMappings(const std::vector<u8>* block) {
void VMManager::RefreshMemoryBlockMappings(const PhysicalMemory* block) {
// If this ever proves to have a noticeable performance impact, allow users of the function to
// specify a specific range of addresses to limit the scan to.
for (const auto& p : vma_map) {
@ -764,7 +765,7 @@ void VMManager::MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryAre
right.backing_block->begin() + right.offset + right.size);
} else {
// Slow case: make a new memory block for left and right.
auto new_memory = std::make_shared<std::vector<u8>>();
auto new_memory = std::make_shared<PhysicalMemory>();
new_memory->insert(new_memory->end(), left.backing_block->begin() + left.offset,
left.backing_block->begin() + left.offset + left.size);
new_memory->insert(new_memory->end(), right.backing_block->begin() + right.offset,

9
src/core/hle/kernel/vm_manager.h
View File

@ -11,6 +11,7 @@
#include "common/common_types.h"
#include "common/memory_hook.h"
#include "common/page_table.h"
#include "core/hle/kernel/physical_memory.h"
#include "core/hle/result.h"
#include "core/memory.h"
@ -290,7 +291,7 @@ struct VirtualMemoryArea {
// Settings for type = AllocatedMemoryBlock
/// Memory block backing this VMA.
std::shared_ptr<std::vector<u8>> backing_block = nullptr;
std::shared_ptr<PhysicalMemory> backing_block = nullptr;
/// Offset into the backing_memory the mapping starts from.
std::size_t offset = 0;
@ -348,7 +349,7 @@ public:
* @param size Size of the mapping.
* @param state MemoryState tag to attach to the VMA.
*/
ResultVal<VMAHandle> MapMemoryBlock(VAddr target, std::shared_ptr<std::vector<u8>> block,
ResultVal<VMAHandle> MapMemoryBlock(VAddr target, std::shared_ptr<PhysicalMemory> block,
std::size_t offset, u64 size, MemoryState state,
VMAPermission perm = VMAPermission::ReadWrite);
@ -547,7 +548,7 @@ public:
* Scans all VMAs and updates the page table range of any that use the given vector as backing
* memory. This should be called after any operation that causes reallocation of the vector.
*/
void RefreshMemoryBlockMappings(const std::vector<u8>* block);
void RefreshMemoryBlockMappings(const PhysicalMemory* block);
/// Dumps the address space layout to the log, for debugging
void LogLayout() const;
@ -777,7 +778,7 @@ private:
// the entire virtual address space extents that bound the allocations, including any holes.
// This makes deallocation and reallocation of holes fast and keeps process memory contiguous
// in the emulator address space, allowing Memory::GetPointer to be reasonably safe.
std::shared_ptr<std::vector<u8>> heap_memory;
std::shared_ptr<PhysicalMemory> heap_memory;
// The end of the currently allocated heap. This is not an inclusive
// end of the range. This is essentially 'base_address + current_size'.

12
src/core/hle/service/ns/pl_u.cpp
View File

@ -77,7 +77,7 @@ enum class LoadState : u32 {
Done = 1,
};
static void DecryptSharedFont(const std::vector<u32>& input, std::vector<u8>& output,
static void DecryptSharedFont(const std::vector<u32>& input, Kernel::PhysicalMemory& output,
std::size_t& offset) {
ASSERT_MSG(offset + (input.size() * sizeof(u32)) < SHARED_FONT_MEM_SIZE,
"Shared fonts exceeds 17mb!");
@ -94,7 +94,7 @@ static void DecryptSharedFont(const std::vector<u32>& input, std::vector<u8>& ou
offset += transformed_font.size() * sizeof(u32);
}
static void EncryptSharedFont(const std::vector<u8>& input, std::vector<u8>& output,
static void EncryptSharedFont(const std::vector<u8>& input, Kernel::PhysicalMemory& output,
std::size_t& offset) {
ASSERT_MSG(offset + input.size() + 8 < SHARED_FONT_MEM_SIZE, "Shared fonts exceeds 17mb!");
const u32 KEY = EXPECTED_MAGIC ^ EXPECTED_RESULT;
@ -121,7 +121,7 @@ struct PL_U::Impl {
return shared_font_regions.at(index);
}
void BuildSharedFontsRawRegions(const std::vector<u8>& input) {
void BuildSharedFontsRawRegions(const Kernel::PhysicalMemory& input) {
// As we can derive the xor key we can just populate the offsets
// based on the shared memory dump
unsigned cur_offset = 0;
@ -144,7 +144,7 @@ struct PL_U::Impl {
Kernel::SharedPtr<Kernel::SharedMemory> shared_font_mem;
/// Backing memory for the shared font data
std::shared_ptr<std::vector<u8>> shared_font;
std::shared_ptr<Kernel::PhysicalMemory> shared_font;
// Automatically populated based on shared_fonts dump or system archives.
std::vector<FontRegion> shared_font_regions;
@ -166,7 +166,7 @@ PL_U::PL_U() : ServiceFramework("pl:u"), impl{std::make_unique<Impl>()} {
// Rebuild shared fonts from data ncas
if (nand->HasEntry(static_cast<u64>(FontArchives::Standard),
FileSys::ContentRecordType::Data)) {
impl->shared_font = std::make_shared<std::vector<u8>>(SHARED_FONT_MEM_SIZE);
impl->shared_font = std::make_shared<Kernel::PhysicalMemory>(SHARED_FONT_MEM_SIZE);
for (auto font : SHARED_FONTS) {
const auto nca =
nand->GetEntry(static_cast<u64>(font.first), FileSys::ContentRecordType::Data);
@ -207,7 +207,7 @@ PL_U::PL_U() : ServiceFramework("pl:u"), impl{std::make_unique<Impl>()} {
}
} else {
impl->shared_font = std::make_shared<std::vector<u8>>(
impl->shared_font = std::make_shared<Kernel::PhysicalMemory>(
SHARED_FONT_MEM_SIZE); // Shared memory needs to always be allocated and a fixed size
const std::string user_path = FileUtil::GetUserPath(FileUtil::UserPath::SysDataDir);

2
src/core/loader/elf.cpp
View File

@ -295,7 +295,7 @@ Kernel::CodeSet ElfReader::LoadInto(VAddr vaddr) {
}
}
std::vector<u8> program_image(total_image_size);
Kernel::PhysicalMemory program_image(total_image_size);
std::size_t current_image_position = 0;
Kernel::CodeSet codeset;

2
src/core/loader/kip.cpp
View File

@ -69,7 +69,7 @@ AppLoader::LoadResult AppLoader_KIP::Load(Kernel::Process& process) {
const VAddr base_address = process.VMManager().GetCodeRegionBaseAddress();
Kernel::CodeSet codeset;
std::vector<u8> program_image;
Kernel::PhysicalMemory program_image;
const auto load_segment = [&program_image](Kernel::CodeSet::Segment& segment,
const std::vector<u8>& data, u32 offset) {

2
src/core/loader/nro.cpp
View File

@ -143,7 +143,7 @@ static bool LoadNroImpl(Kernel::Process& process, const std::vector<u8>& data,
}
// Build program image
std::vector<u8> program_image(PageAlignSize(nro_header.file_size));
Kernel::PhysicalMemory program_image(PageAlignSize(nro_header.file_size));
std::memcpy(program_image.data(), data.data(), program_image.size());
if (program_image.size() != PageAlignSize(nro_header.file_size)) {
return {};

2
src/core/loader/nso.cpp
View File

@ -89,7 +89,7 @@ std::optional<VAddr> AppLoader_NSO::LoadModule(Kernel::Process& process,
// Build program image
Kernel::CodeSet codeset;
std::vector<u8> program_image;
Kernel::PhysicalMemory program_image;
for (std::size_t i = 0; i < nso_header.segments.size(); ++i) {
std::vector<u8> data =
file.ReadBytes(nso_header.segments_compressed_size[i], nso_header.segments[i].offset);