mirror of
https://github.com/yuzu-mirror/yuzu.git
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779 lines
27 KiB
C++
779 lines
27 KiB
C++
// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <array>
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#include <cstring>
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "common/swap.h"
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#include "core/arm/arm_interface.h"
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#include "core/core.h"
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#include "core/hle/kernel/memory.h"
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#include "core/hle/kernel/process.h"
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#include "core/hle/lock.h"
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#include "core/memory.h"
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#include "core/memory_setup.h"
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#include "video_core/renderer_base.h"
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#include "video_core/video_core.h"
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namespace Memory {
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static std::array<u8, Memory::VRAM_SIZE> vram;
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static std::array<u8, Memory::N3DS_EXTRA_RAM_SIZE> n3ds_extra_ram;
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static PageTable* current_page_table = nullptr;
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void SetCurrentPageTable(PageTable* page_table) {
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current_page_table = page_table;
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if (Core::System::GetInstance().IsPoweredOn()) {
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Core::CPU().PageTableChanged();
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}
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}
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PageTable* GetCurrentPageTable() {
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return current_page_table;
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}
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static void MapPages(PageTable& page_table, VAddr base, u64 size, u8* memory, PageType type) {
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LOG_DEBUG(HW_Memory, "Mapping %p onto %08X-%08X", memory, base * PAGE_SIZE,
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(base + size) * PAGE_SIZE);
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RasterizerFlushVirtualRegion(base << PAGE_BITS, size * PAGE_SIZE,
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FlushMode::FlushAndInvalidate);
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VAddr end = base + size;
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while (base != end) {
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ASSERT_MSG(base < PAGE_TABLE_NUM_ENTRIES, "out of range mapping at %08X", base);
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page_table.attributes[base] = type;
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page_table.pointers[base] = memory;
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page_table.cached_res_count[base] = 0;
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base += 1;
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if (memory != nullptr)
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memory += PAGE_SIZE;
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}
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}
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void MapMemoryRegion(PageTable& page_table, VAddr base, u64 size, u8* target) {
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ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: %08X", size);
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ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: %08X", base);
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MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, PageType::Memory);
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}
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void MapIoRegion(PageTable& page_table, VAddr base, u64 size, MMIORegionPointer mmio_handler) {
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ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: %08X", size);
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ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: %08X", base);
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MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, PageType::Special);
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page_table.special_regions.emplace_back(SpecialRegion{base, size, mmio_handler});
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}
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void UnmapRegion(PageTable& page_table, VAddr base, u64 size) {
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ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: %08X", size);
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ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: %08X", base);
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MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, nullptr, PageType::Unmapped);
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}
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/**
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* Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
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* using a VMA from the current process
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*/
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static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
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u8* direct_pointer = nullptr;
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auto& vm_manager = process.vm_manager;
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auto it = vm_manager.FindVMA(vaddr);
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ASSERT(it != vm_manager.vma_map.end());
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auto& vma = it->second;
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switch (vma.type) {
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case Kernel::VMAType::AllocatedMemoryBlock:
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direct_pointer = vma.backing_block->data() + vma.offset;
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break;
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case Kernel::VMAType::BackingMemory:
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direct_pointer = vma.backing_memory;
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break;
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case Kernel::VMAType::Free:
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return nullptr;
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default:
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UNREACHABLE();
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}
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return direct_pointer + (vaddr - vma.base);
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}
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/**
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* Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
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* using a VMA from the current process.
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*/
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static u8* GetPointerFromVMA(VAddr vaddr) {
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return GetPointerFromVMA(*Kernel::g_current_process, vaddr);
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}
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/**
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* This function should only be called for virtual addreses with attribute `PageType::Special`.
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*/
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static MMIORegionPointer GetMMIOHandler(const PageTable& page_table, VAddr vaddr) {
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for (const auto& region : page_table.special_regions) {
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if (vaddr >= region.base && vaddr < (region.base + region.size)) {
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return region.handler;
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}
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}
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ASSERT_MSG(false, "Mapped IO page without a handler @ %08X", vaddr);
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return nullptr; // Should never happen
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}
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static MMIORegionPointer GetMMIOHandler(VAddr vaddr) {
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const PageTable& page_table = Kernel::g_current_process->vm_manager.page_table;
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return GetMMIOHandler(page_table, vaddr);
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}
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template <typename T>
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T ReadMMIO(MMIORegionPointer mmio_handler, VAddr addr);
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template <typename T>
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T Read(const VAddr vaddr) {
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const u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
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if (page_pointer) {
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// NOTE: Avoid adding any extra logic to this fast-path block
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T value;
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std::memcpy(&value, &page_pointer[vaddr & PAGE_MASK], sizeof(T));
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return value;
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}
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// The memory access might do an MMIO or cached access, so we have to lock the HLE kernel state
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std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
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PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
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switch (type) {
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case PageType::Unmapped:
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LOG_ERROR(HW_Memory, "unmapped Read%lu @ 0x%llx", sizeof(T) * 8, vaddr);
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return 0;
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case PageType::Memory:
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ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr);
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break;
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case PageType::RasterizerCachedMemory: {
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RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
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T value;
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std::memcpy(&value, GetPointerFromVMA(vaddr), sizeof(T));
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return value;
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}
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case PageType::Special:
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return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
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case PageType::RasterizerCachedSpecial: {
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RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
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return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
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}
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default:
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UNREACHABLE();
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}
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}
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template <typename T>
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void WriteMMIO(MMIORegionPointer mmio_handler, VAddr addr, const T data);
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template <typename T>
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void Write(const VAddr vaddr, const T data) {
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u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
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if (page_pointer) {
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// NOTE: Avoid adding any extra logic to this fast-path block
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std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T));
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return;
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}
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// The memory access might do an MMIO or cached access, so we have to lock the HLE kernel state
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std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock);
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PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
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switch (type) {
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case PageType::Unmapped:
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LOG_ERROR(HW_Memory, "unmapped Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data,
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vaddr);
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return;
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case PageType::Memory:
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ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr);
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break;
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case PageType::RasterizerCachedMemory: {
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RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::FlushAndInvalidate);
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std::memcpy(GetPointerFromVMA(vaddr), &data, sizeof(T));
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break;
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}
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case PageType::Special:
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WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
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break;
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case PageType::RasterizerCachedSpecial: {
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RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::FlushAndInvalidate);
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WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
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break;
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}
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default:
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UNREACHABLE();
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}
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}
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bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) {
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auto& page_table = process.vm_manager.page_table;
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const u8* page_pointer = page_table.pointers[vaddr >> PAGE_BITS];
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if (page_pointer)
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return true;
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if (page_table.attributes[vaddr >> PAGE_BITS] == PageType::RasterizerCachedMemory)
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return true;
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if (page_table.attributes[vaddr >> PAGE_BITS] != PageType::Special)
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return false;
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MMIORegionPointer mmio_region = GetMMIOHandler(page_table, vaddr);
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if (mmio_region) {
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return mmio_region->IsValidAddress(vaddr);
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}
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return false;
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}
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bool IsValidVirtualAddress(const VAddr vaddr) {
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return IsValidVirtualAddress(*Kernel::g_current_process, vaddr);
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}
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bool IsValidPhysicalAddress(const PAddr paddr) {
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return GetPhysicalPointer(paddr) != nullptr;
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}
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u8* GetPointer(const VAddr vaddr) {
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u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
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if (page_pointer) {
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return page_pointer + (vaddr & PAGE_MASK);
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}
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if (current_page_table->attributes[vaddr >> PAGE_BITS] == PageType::RasterizerCachedMemory) {
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return GetPointerFromVMA(vaddr);
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}
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LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%08x", vaddr);
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return nullptr;
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}
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std::string ReadCString(VAddr vaddr, std::size_t max_length) {
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std::string string;
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string.reserve(max_length);
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for (std::size_t i = 0; i < max_length; ++i) {
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char c = Read8(vaddr);
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if (c == '\0')
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break;
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string.push_back(c);
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++vaddr;
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}
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string.shrink_to_fit();
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return string;
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}
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u8* GetPhysicalPointer(PAddr address) {
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struct MemoryArea {
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PAddr paddr_base;
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u32 size;
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};
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static constexpr MemoryArea memory_areas[] = {
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{VRAM_PADDR, VRAM_SIZE},
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{IO_AREA_PADDR, IO_AREA_SIZE},
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{DSP_RAM_PADDR, DSP_RAM_SIZE},
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{FCRAM_PADDR, FCRAM_N3DS_SIZE},
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{N3DS_EXTRA_RAM_PADDR, N3DS_EXTRA_RAM_SIZE},
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};
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const auto area =
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std::find_if(std::begin(memory_areas), std::end(memory_areas), [&](const auto& area) {
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return address >= area.paddr_base && address < area.paddr_base + area.size;
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});
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if (area == std::end(memory_areas)) {
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LOG_ERROR(HW_Memory, "unknown GetPhysicalPointer @ 0x%08X", address);
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return nullptr;
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}
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if (area->paddr_base == IO_AREA_PADDR) {
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LOG_ERROR(HW_Memory, "MMIO mappings are not supported yet. phys_addr=0x%08X", address);
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return nullptr;
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}
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u64 offset_into_region = address - area->paddr_base;
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u8* target_pointer = nullptr;
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switch (area->paddr_base) {
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case VRAM_PADDR:
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target_pointer = vram.data() + offset_into_region;
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break;
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case DSP_RAM_PADDR:
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break;
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case FCRAM_PADDR:
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for (const auto& region : Kernel::memory_regions) {
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if (offset_into_region >= region.base &&
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offset_into_region < region.base + region.size) {
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target_pointer =
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region.linear_heap_memory->data() + offset_into_region - region.base;
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break;
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}
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}
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ASSERT_MSG(target_pointer != nullptr, "Invalid FCRAM address");
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break;
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case N3DS_EXTRA_RAM_PADDR:
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target_pointer = n3ds_extra_ram.data() + offset_into_region;
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break;
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default:
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UNREACHABLE();
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}
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return target_pointer;
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}
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void RasterizerMarkRegionCached(PAddr start, u64 size, int count_delta) {
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if (start == 0) {
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return;
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}
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u64 num_pages = ((start + size - 1) >> PAGE_BITS) - (start >> PAGE_BITS) + 1;
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PAddr paddr = start;
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for (unsigned i = 0; i < num_pages; ++i, paddr += PAGE_SIZE) {
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boost::optional<VAddr> maybe_vaddr = PhysicalToVirtualAddress(paddr);
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// While the physical <-> virtual mapping is 1:1 for the regions supported by the cache,
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// some games (like Pokemon Super Mystery Dungeon) will try to use textures that go beyond
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// the end address of VRAM, causing the Virtual->Physical translation to fail when flushing
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// parts of the texture.
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if (!maybe_vaddr) {
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LOG_ERROR(HW_Memory,
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"Trying to flush a cached region to an invalid physical address %08X", paddr);
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continue;
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}
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VAddr vaddr = *maybe_vaddr;
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u8& res_count = current_page_table->cached_res_count[vaddr >> PAGE_BITS];
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ASSERT_MSG(count_delta <= UINT8_MAX - res_count,
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"Rasterizer resource cache counter overflow!");
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ASSERT_MSG(count_delta >= -res_count, "Rasterizer resource cache counter underflow!");
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// Switch page type to cached if now cached
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if (res_count == 0) {
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PageType& page_type = current_page_table->attributes[vaddr >> PAGE_BITS];
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switch (page_type) {
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case PageType::Unmapped:
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// It is not necessary for a process to have this region mapped into its address
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// space, for example, a system module need not have a VRAM mapping.
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break;
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case PageType::Memory:
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page_type = PageType::RasterizerCachedMemory;
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current_page_table->pointers[vaddr >> PAGE_BITS] = nullptr;
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break;
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case PageType::Special:
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page_type = PageType::RasterizerCachedSpecial;
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break;
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default:
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UNREACHABLE();
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}
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}
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res_count += count_delta;
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// Switch page type to uncached if now uncached
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if (res_count == 0) {
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PageType& page_type = current_page_table->attributes[vaddr >> PAGE_BITS];
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switch (page_type) {
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case PageType::Unmapped:
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// It is not necessary for a process to have this region mapped into its address
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// space, for example, a system module need not have a VRAM mapping.
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break;
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case PageType::RasterizerCachedMemory: {
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u8* pointer = GetPointerFromVMA(vaddr & ~PAGE_MASK);
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if (pointer == nullptr) {
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// It's possible that this function has called been while updating the pagetable
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// after unmapping a VMA. In that case the underlying VMA will no longer exist,
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// and we should just leave the pagetable entry blank.
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page_type = PageType::Unmapped;
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} else {
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page_type = PageType::Memory;
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current_page_table->pointers[vaddr >> PAGE_BITS] = pointer;
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}
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break;
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}
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case PageType::RasterizerCachedSpecial:
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page_type = PageType::Special;
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break;
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default:
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UNREACHABLE();
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}
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}
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}
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}
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void RasterizerFlushRegion(PAddr start, u64 size) {}
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void RasterizerFlushAndInvalidateRegion(PAddr start, u64 size) {
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// Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
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// null here
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}
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void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode) {
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// Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
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// null here
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}
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u8 Read8(const VAddr addr) {
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return Read<u8>(addr);
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}
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u16 Read16(const VAddr addr) {
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return Read<u16_le>(addr);
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}
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u32 Read32(const VAddr addr) {
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return Read<u32_le>(addr);
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}
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u64 Read64(const VAddr addr) {
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return Read<u64_le>(addr);
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}
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void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
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const size_t size) {
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auto& page_table = process.vm_manager.page_table;
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size_t remaining_size = size;
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size_t page_index = src_addr >> PAGE_BITS;
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size_t page_offset = src_addr & PAGE_MASK;
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while (remaining_size > 0) {
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const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size);
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const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
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switch (page_table.attributes[page_index]) {
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case PageType::Unmapped: {
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LOG_ERROR(HW_Memory, "unmapped ReadBlock @ 0x%08X (start address = 0xllx, size = %zu)",
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current_vaddr, src_addr, size);
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std::memset(dest_buffer, 0, copy_amount);
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break;
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}
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case PageType::Memory: {
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DEBUG_ASSERT(page_table.pointers[page_index]);
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const u8* src_ptr = page_table.pointers[page_index] + page_offset;
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std::memcpy(dest_buffer, src_ptr, copy_amount);
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break;
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}
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case PageType::Special: {
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MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
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DEBUG_ASSERT(handler);
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handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
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break;
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}
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case PageType::RasterizerCachedMemory: {
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RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
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FlushMode::Flush);
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std::memcpy(dest_buffer, GetPointerFromVMA(process, current_vaddr), copy_amount);
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedSpecial: {
|
|
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
|
|
DEBUG_ASSERT(handler);
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::Flush);
|
|
handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
|
|
break;
|
|
}
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
|
|
page_index++;
|
|
page_offset = 0;
|
|
dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount;
|
|
remaining_size -= copy_amount;
|
|
}
|
|
}
|
|
|
|
void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
|
|
ReadBlock(*Kernel::g_current_process, src_addr, dest_buffer, size);
|
|
}
|
|
|
|
void Write8(const VAddr addr, const u8 data) {
|
|
Write<u8>(addr, data);
|
|
}
|
|
|
|
void Write16(const VAddr addr, const u16 data) {
|
|
Write<u16_le>(addr, data);
|
|
}
|
|
|
|
void Write32(const VAddr addr, const u32 data) {
|
|
Write<u32_le>(addr, data);
|
|
}
|
|
|
|
void Write64(const VAddr addr, const u64 data) {
|
|
Write<u64_le>(addr, data);
|
|
}
|
|
|
|
void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer,
|
|
const size_t size) {
|
|
auto& page_table = process.vm_manager.page_table;
|
|
size_t remaining_size = size;
|
|
size_t page_index = dest_addr >> PAGE_BITS;
|
|
size_t page_offset = dest_addr & PAGE_MASK;
|
|
|
|
while (remaining_size > 0) {
|
|
const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size);
|
|
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
|
|
|
|
switch (page_table.attributes[page_index]) {
|
|
case PageType::Unmapped: {
|
|
LOG_ERROR(HW_Memory,
|
|
"unmapped WriteBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
|
|
current_vaddr, dest_addr, size);
|
|
break;
|
|
}
|
|
case PageType::Memory: {
|
|
DEBUG_ASSERT(page_table.pointers[page_index]);
|
|
|
|
u8* dest_ptr = page_table.pointers[page_index] + page_offset;
|
|
std::memcpy(dest_ptr, src_buffer, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::Special: {
|
|
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
|
|
DEBUG_ASSERT(handler);
|
|
handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedMemory: {
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::FlushAndInvalidate);
|
|
std::memcpy(GetPointerFromVMA(process, current_vaddr), src_buffer, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedSpecial: {
|
|
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
|
|
DEBUG_ASSERT(handler);
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::FlushAndInvalidate);
|
|
handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
|
|
break;
|
|
}
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
|
|
page_index++;
|
|
page_offset = 0;
|
|
src_buffer = static_cast<const u8*>(src_buffer) + copy_amount;
|
|
remaining_size -= copy_amount;
|
|
}
|
|
}
|
|
|
|
void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size) {
|
|
WriteBlock(*Kernel::g_current_process, dest_addr, src_buffer, size);
|
|
}
|
|
|
|
void ZeroBlock(const VAddr dest_addr, const size_t size) {
|
|
size_t remaining_size = size;
|
|
size_t page_index = dest_addr >> PAGE_BITS;
|
|
size_t page_offset = dest_addr & PAGE_MASK;
|
|
|
|
static const std::array<u8, PAGE_SIZE> zeros = {};
|
|
|
|
while (remaining_size > 0) {
|
|
const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size);
|
|
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
|
|
|
|
switch (current_page_table->attributes[page_index]) {
|
|
case PageType::Unmapped: {
|
|
LOG_ERROR(HW_Memory, "unmapped ZeroBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
|
|
current_vaddr, dest_addr, size);
|
|
break;
|
|
}
|
|
case PageType::Memory: {
|
|
DEBUG_ASSERT(current_page_table->pointers[page_index]);
|
|
|
|
u8* dest_ptr = current_page_table->pointers[page_index] + page_offset;
|
|
std::memset(dest_ptr, 0, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::Special: {
|
|
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
|
|
|
|
GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, zeros.data(), copy_amount);
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedMemory: {
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::FlushAndInvalidate);
|
|
std::memset(GetPointerFromVMA(current_vaddr), 0, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedSpecial: {
|
|
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::FlushAndInvalidate);
|
|
GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, zeros.data(), copy_amount);
|
|
break;
|
|
}
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
|
|
page_index++;
|
|
page_offset = 0;
|
|
remaining_size -= copy_amount;
|
|
}
|
|
}
|
|
|
|
void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
|
|
size_t remaining_size = size;
|
|
size_t page_index = src_addr >> PAGE_BITS;
|
|
size_t page_offset = src_addr & PAGE_MASK;
|
|
|
|
while (remaining_size > 0) {
|
|
const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size);
|
|
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
|
|
|
|
switch (current_page_table->attributes[page_index]) {
|
|
case PageType::Unmapped: {
|
|
LOG_ERROR(HW_Memory, "unmapped CopyBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
|
|
current_vaddr, src_addr, size);
|
|
ZeroBlock(dest_addr, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::Memory: {
|
|
DEBUG_ASSERT(current_page_table->pointers[page_index]);
|
|
const u8* src_ptr = current_page_table->pointers[page_index] + page_offset;
|
|
WriteBlock(dest_addr, src_ptr, copy_amount);
|
|
break;
|
|
}
|
|
case PageType::Special: {
|
|
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
|
|
|
|
std::vector<u8> buffer(copy_amount);
|
|
GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, buffer.data(), buffer.size());
|
|
WriteBlock(dest_addr, buffer.data(), buffer.size());
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedMemory: {
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::Flush);
|
|
WriteBlock(dest_addr, GetPointerFromVMA(current_vaddr), copy_amount);
|
|
break;
|
|
}
|
|
case PageType::RasterizerCachedSpecial: {
|
|
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
|
|
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
|
|
FlushMode::Flush);
|
|
|
|
std::vector<u8> buffer(copy_amount);
|
|
GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, buffer.data(), buffer.size());
|
|
WriteBlock(dest_addr, buffer.data(), buffer.size());
|
|
break;
|
|
}
|
|
default:
|
|
UNREACHABLE();
|
|
}
|
|
|
|
page_index++;
|
|
page_offset = 0;
|
|
dest_addr += static_cast<VAddr>(copy_amount);
|
|
src_addr += static_cast<VAddr>(copy_amount);
|
|
remaining_size -= copy_amount;
|
|
}
|
|
}
|
|
|
|
template <>
|
|
u8 ReadMMIO<u8>(MMIORegionPointer mmio_handler, VAddr addr) {
|
|
return mmio_handler->Read8(addr);
|
|
}
|
|
|
|
template <>
|
|
u16 ReadMMIO<u16>(MMIORegionPointer mmio_handler, VAddr addr) {
|
|
return mmio_handler->Read16(addr);
|
|
}
|
|
|
|
template <>
|
|
u32 ReadMMIO<u32>(MMIORegionPointer mmio_handler, VAddr addr) {
|
|
return mmio_handler->Read32(addr);
|
|
}
|
|
|
|
template <>
|
|
u64 ReadMMIO<u64>(MMIORegionPointer mmio_handler, VAddr addr) {
|
|
return mmio_handler->Read64(addr);
|
|
}
|
|
|
|
template <>
|
|
void WriteMMIO<u8>(MMIORegionPointer mmio_handler, VAddr addr, const u8 data) {
|
|
mmio_handler->Write8(addr, data);
|
|
}
|
|
|
|
template <>
|
|
void WriteMMIO<u16>(MMIORegionPointer mmio_handler, VAddr addr, const u16 data) {
|
|
mmio_handler->Write16(addr, data);
|
|
}
|
|
|
|
template <>
|
|
void WriteMMIO<u32>(MMIORegionPointer mmio_handler, VAddr addr, const u32 data) {
|
|
mmio_handler->Write32(addr, data);
|
|
}
|
|
|
|
template <>
|
|
void WriteMMIO<u64>(MMIORegionPointer mmio_handler, VAddr addr, const u64 data) {
|
|
mmio_handler->Write64(addr, data);
|
|
}
|
|
|
|
boost::optional<PAddr> TryVirtualToPhysicalAddress(const VAddr addr) {
|
|
if (addr == 0) {
|
|
return 0;
|
|
} else if (addr >= VRAM_VADDR && addr < VRAM_VADDR_END) {
|
|
return addr - VRAM_VADDR + VRAM_PADDR;
|
|
} else if (addr >= LINEAR_HEAP_VADDR && addr < LINEAR_HEAP_VADDR_END) {
|
|
return addr - LINEAR_HEAP_VADDR + FCRAM_PADDR;
|
|
} else if (addr >= NEW_LINEAR_HEAP_VADDR && addr < NEW_LINEAR_HEAP_VADDR_END) {
|
|
return addr - NEW_LINEAR_HEAP_VADDR + FCRAM_PADDR;
|
|
} else if (addr >= DSP_RAM_VADDR && addr < DSP_RAM_VADDR_END) {
|
|
return addr - DSP_RAM_VADDR + DSP_RAM_PADDR;
|
|
} else if (addr >= IO_AREA_VADDR && addr < IO_AREA_VADDR_END) {
|
|
return addr - IO_AREA_VADDR + IO_AREA_PADDR;
|
|
} else if (addr >= N3DS_EXTRA_RAM_VADDR && addr < N3DS_EXTRA_RAM_VADDR_END) {
|
|
return addr - N3DS_EXTRA_RAM_VADDR + N3DS_EXTRA_RAM_PADDR;
|
|
}
|
|
|
|
return boost::none;
|
|
}
|
|
|
|
PAddr VirtualToPhysicalAddress(const VAddr addr) {
|
|
auto paddr = TryVirtualToPhysicalAddress(addr);
|
|
if (!paddr) {
|
|
LOG_ERROR(HW_Memory, "Unknown virtual address @ 0x%08X", addr);
|
|
// To help with debugging, set bit on address so that it's obviously invalid.
|
|
return addr | 0x80000000;
|
|
}
|
|
return *paddr;
|
|
}
|
|
|
|
boost::optional<VAddr> PhysicalToVirtualAddress(const PAddr addr) {
|
|
if (addr == 0) {
|
|
return 0;
|
|
} else if (addr >= VRAM_PADDR && addr < VRAM_PADDR_END) {
|
|
return addr - VRAM_PADDR + VRAM_VADDR;
|
|
} else if (addr >= FCRAM_PADDR && addr < FCRAM_PADDR_END) {
|
|
return addr - FCRAM_PADDR + Kernel::g_current_process->GetLinearHeapAreaAddress();
|
|
} else if (addr >= DSP_RAM_PADDR && addr < DSP_RAM_PADDR_END) {
|
|
return addr - DSP_RAM_PADDR + DSP_RAM_VADDR;
|
|
} else if (addr >= IO_AREA_PADDR && addr < IO_AREA_PADDR_END) {
|
|
return addr - IO_AREA_PADDR + IO_AREA_VADDR;
|
|
} else if (addr >= N3DS_EXTRA_RAM_PADDR && addr < N3DS_EXTRA_RAM_PADDR_END) {
|
|
return addr - N3DS_EXTRA_RAM_PADDR + N3DS_EXTRA_RAM_VADDR;
|
|
}
|
|
|
|
return boost::none;
|
|
}
|
|
|
|
} // namespace Memory
|