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core/memory: Migrate over memory mapping functions to the new Memory class

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Migrates all of the direct mapping facilities over to the new memory
class. In the process, this also obsoletes the need for memory_setup.h,
so we can remove it entirely from the project.
This commit is contained in:
Lioncash 2019-11-26 13:09:12 -05:00
parent 4c2ed2706e
commit 323680e5ad
6 changed files with 187 additions and 135 deletions
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1
src/core/CMakeLists.txt
View file

@ -509,7 +509,6 @@ add_library(core STATIC
memory/dmnt_cheat_vm.h
memory.cpp
memory.h
memory_setup.h
perf_stats.cpp
perf_stats.h
reporter.cpp

13
src/core/hle/kernel/vm_manager.cpp
View file

@ -16,7 +16,6 @@
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
#include "core/memory_setup.h"
namespace Kernel {
namespace {
@ -786,19 +785,21 @@ void VMManager::MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryAre
}
void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) {
auto& memory = system.Memory();
switch (vma.type) {
case VMAType::Free:
Memory::UnmapRegion(page_table, vma.base, vma.size);
memory.UnmapRegion(page_table, vma.base, vma.size);
break;
case VMAType::AllocatedMemoryBlock:
Memory::MapMemoryRegion(page_table, vma.base, vma.size,
vma.backing_block->data() + vma.offset);
memory.MapMemoryRegion(page_table, vma.base, vma.size,
vma.backing_block->data() + vma.offset);
break;
case VMAType::BackingMemory:
Memory::MapMemoryRegion(page_table, vma.base, vma.size, vma.backing_memory);
memory.MapMemoryRegion(page_table, vma.base, vma.size, vma.backing_memory);
break;
case VMAType::MMIO:
Memory::MapIoRegion(page_table, vma.base, vma.size, vma.mmio_handler);
memory.MapIoRegion(page_table, vma.base, vma.size, vma.mmio_handler);
break;
}
}

191
src/core/memory.cpp
View file

@ -17,7 +17,6 @@
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/vm_manager.h"
#include "core/memory.h"
#include "core/memory_setup.h"
#include "video_core/gpu.h"
namespace Memory {
@ -30,12 +29,125 @@ static Common::PageTable* current_page_table = nullptr;
struct Memory::Impl {
explicit Impl(Core::System& system_) : system{system_} {}
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory);
}
void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer mmio_handler) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr,
Common::PageType::Special);
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
const Common::SpecialRegion region{Common::SpecialRegion::Type::IODevice,
std::move(mmio_handler)};
page_table.special_regions.add(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
}
void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr,
Common::PageType::Unmapped);
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
page_table.special_regions.erase(interval);
}
void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
const Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)};
page_table.special_regions.add(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
}
void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
const auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
const Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)};
page_table.special_regions.subtract(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
}
/**
* Maps a region of pages as a specific type.
*
* @param page_table The page table to use to perform the mapping.
* @param base The base address to begin mapping at.
* @param size The total size of the range in bytes.
* @param memory The memory to map.
* @param type The page type to map the memory as.
*/
void MapPages(Common::PageTable& page_table, VAddr base, u64 size, u8* memory,
Common::PageType type) {
LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
// During boot, current_page_table might not be set yet, in which case we need not flush
if (system.IsPoweredOn()) {
auto& gpu = system.GPU();
for (u64 i = 0; i < size; i++) {
const auto page = base + i;
if (page_table.attributes[page] == Common::PageType::RasterizerCachedMemory) {
gpu.FlushAndInvalidateRegion(page << PAGE_BITS, PAGE_SIZE);
}
}
}
const VAddr end = base + size;
ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
base + page_table.pointers.size());
std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type);
if (memory == nullptr) {
std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end,
memory);
} else {
while (base != end) {
page_table.pointers[base] = memory;
base += 1;
memory += PAGE_SIZE;
}
}
}
Core::System& system;
};
Memory::Memory(Core::System& system) : impl{std::make_unique<Impl>(system)} {}
Memory::~Memory() = default;
void Memory::MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) {
impl->MapMemoryRegion(page_table, base, size, target);
}
void Memory::MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer mmio_handler) {
impl->MapIoRegion(page_table, base, size, std::move(mmio_handler));
}
void Memory::UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
impl->UnmapRegion(page_table, base, size);
}
void Memory::AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
impl->AddDebugHook(page_table, base, size, std::move(hook));
}
void Memory::RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
impl->RemoveDebugHook(page_table, base, size, std::move(hook));
}
void SetCurrentPageTable(Kernel::Process& process) {
current_page_table = &process.VMManager().page_table;
@ -48,83 +160,6 @@ void SetCurrentPageTable(Kernel::Process& process) {
system.ArmInterface(3).PageTableChanged(*current_page_table, address_space_width);
}
static void MapPages(Common::PageTable& page_table, VAddr base, u64 size, u8* memory,
Common::PageType type) {
LOG_DEBUG(HW_Memory, "Mapping {} onto {:016X}-{:016X}", fmt::ptr(memory), base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
// During boot, current_page_table might not be set yet, in which case we need not flush
if (Core::System::GetInstance().IsPoweredOn()) {
auto& gpu = Core::System::GetInstance().GPU();
for (u64 i = 0; i < size; i++) {
const auto page = base + i;
if (page_table.attributes[page] == Common::PageType::RasterizerCachedMemory) {
gpu.FlushAndInvalidateRegion(page << PAGE_BITS, PAGE_SIZE);
}
}
}
VAddr end = base + size;
ASSERT_MSG(end <= page_table.pointers.size(), "out of range mapping at {:016X}",
base + page_table.pointers.size());
std::fill(page_table.attributes.begin() + base, page_table.attributes.begin() + end, type);
if (memory == nullptr) {
std::fill(page_table.pointers.begin() + base, page_table.pointers.begin() + end, memory);
} else {
while (base != end) {
page_table.pointers[base] = memory;
base += 1;
memory += PAGE_SIZE;
}
}
}
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory);
}
void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer mmio_handler) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, Common::PageType::Special);
auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
Common::SpecialRegion region{Common::SpecialRegion::Type::IODevice, std::move(mmio_handler)};
page_table.special_regions.add(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
}
void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) {
ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size);
ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base);
MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, Common::PageType::Unmapped);
auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
page_table.special_regions.erase(interval);
}
void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)};
page_table.special_regions.add(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
}
void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook) {
auto interval = boost::icl::discrete_interval<VAddr>::closed(base, base + size - 1);
Common::SpecialRegion region{Common::SpecialRegion::Type::DebugHook, std::move(hook)};
page_table.special_regions.subtract(
std::make_pair(interval, std::set<Common::SpecialRegion>{region}));
}
/**
* Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
* using a VMA from the current process

59
src/core/memory.h
View file

@ -5,8 +5,14 @@
#pragma once
#include <cstddef>
#include <memory>
#include <string>
#include "common/common_types.h"
#include "common/memory_hook.h"
namespace Common {
struct PageTable;
}
namespace Core {
class System;
@ -52,6 +58,59 @@ public:
Memory(Memory&&) = default;
Memory& operator=(Memory&&) = default;
/**
* Maps an allocated buffer onto a region of the emulated process address space.
*
* @param page_table The page table of the emulated process.
* @param base The address to start mapping at. Must be page-aligned.
* @param size The amount of bytes to map. Must be page-aligned.
* @param target Buffer with the memory backing the mapping. Must be of length at least
* `size`.
*/
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target);
/**
* Maps a region of the emulated process address space as a IO region.
*
* @param page_table The page table of the emulated process.
* @param base The address to start mapping at. Must be page-aligned.
* @param size The amount of bytes to map. Must be page-aligned.
* @param mmio_handler The handler that backs the mapping.
*/
void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer mmio_handler);
/**
* Unmaps a region of the emulated process address space.
*
* @param page_table The page table of the emulated process.
* @param base The address to begin unmapping at.
* @param size The amount of bytes to unmap.
*/
void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size);
/**
* Adds a memory hook to intercept reads and writes to given region of memory.
*
* @param page_table The page table of the emulated process
* @param base The starting address to apply the hook to.
* @param size The size of the memory region to apply the hook to, in bytes.
* @param hook The hook to apply to the region of memory.
*/
void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook);
/**
* Removes a memory hook from a given range of memory.
*
* @param page_table The page table of the emulated process.
* @param base The starting address to remove the hook from.
* @param size The size of the memory region to remove the hook from, in bytes.
* @param hook The hook to remove from the specified region of memory.
*/
void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook);
private:
struct Impl;
std::unique_ptr<Impl> impl;

43
src/core/memory_setup.h
View file

@ -1,43 +0,0 @@
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common_types.h"
#include "common/memory_hook.h"
namespace Common {
struct PageTable;
}
namespace Memory {
/**
* Maps an allocated buffer onto a region of the emulated process address space.
*
* @param page_table The page table of the emulated process.
* @param base The address to start mapping at. Must be page-aligned.
* @param size The amount of bytes to map. Must be page-aligned.
* @param target Buffer with the memory backing the mapping. Must be of length at least `size`.
*/
void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, u8* target);
/**
* Maps a region of the emulated process address space as a IO region.
* @param page_table The page table of the emulated process.
* @param base The address to start mapping at. Must be page-aligned.
* @param size The amount of bytes to map. Must be page-aligned.
* @param mmio_handler The handler that backs the mapping.
*/
void MapIoRegion(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer mmio_handler);
void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size);
void AddDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook);
void RemoveDebugHook(Common::PageTable& page_table, VAddr base, u64 size,
Common::MemoryHookPointer hook);
} // namespace Memory

15
src/tests/core/arm/arm_test_common.cpp
View file

@ -8,7 +8,6 @@
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "core/memory.h"
#include "core/memory_setup.h"
#include "tests/core/arm/arm_test_common.h"
namespace ArmTests {
@ -16,8 +15,9 @@ namespace ArmTests {
TestEnvironment::TestEnvironment(bool mutable_memory_)
: mutable_memory(mutable_memory_),
test_memory(std::make_shared<TestMemory>(this)), kernel{Core::System::GetInstance()} {
auto process = Kernel::Process::Create(Core::System::GetInstance(), "",
Kernel::Process::ProcessType::Userland);
auto& system = Core::System::GetInstance();
auto process = Kernel::Process::Create(system, "", Kernel::Process::ProcessType::Userland);
page_table = &process->VMManager().page_table;
std::fill(page_table->pointers.begin(), page_table->pointers.end(), nullptr);
@ -25,15 +25,16 @@ TestEnvironment::TestEnvironment(bool mutable_memory_)
std::fill(page_table->attributes.begin(), page_table->attributes.end(),
Common::PageType::Unmapped);
Memory::MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory);
Memory::MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory);
system.Memory().MapIoRegion(*page_table, 0x00000000, 0x80000000, test_memory);
system.Memory().MapIoRegion(*page_table, 0x80000000, 0x80000000, test_memory);
kernel.MakeCurrentProcess(process.get());
}
TestEnvironment::~TestEnvironment() {
Memory::UnmapRegion(*page_table, 0x80000000, 0x80000000);
Memory::UnmapRegion(*page_table, 0x00000000, 0x80000000);
auto& system = Core::System::GetInstance();
system.Memory().UnmapRegion(*page_table, 0x80000000, 0x80000000);
system.Memory().UnmapRegion(*page_table, 0x00000000, 0x80000000);
}
void TestEnvironment::SetMemory64(VAddr vaddr, u64 value) {