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core: Remove special regions (#7211)

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GPUCode 2023-11-26 22:07:30 +02:00 • committed by GitHub
parent dc8425a986
commit db7b929e47
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 4 additions and 13996 deletions
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118
src/core/memory.cpp
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@ -156,20 +156,6 @@ public:
return system.GetRunningCore().GetPC();
}
/**
* This function should only be called for virtual addreses with attribute `PageType::Special`.
*/
MMIORegionPointer GetMMIOHandler(const PageTable& page_table, VAddr vaddr) {
for (const auto& region : page_table.special_regions) {
if (vaddr >= region.base && vaddr < (region.base + region.size)) {
return region.handler;
}
}
ASSERT_MSG(false, "Mapped IO page without a handler @ {:08X}", vaddr);
return nullptr; // Should never happen
}
template <bool UNSAFE>
void ReadBlockImpl(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
const std::size_t size) {
@ -201,12 +187,6 @@ public:
std::memcpy(dest_buffer, src_ptr, copy_amount);
break;
}
case PageType::Special: {
MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
handler->ReadBlock(current_vaddr, dest_buffer, copy_amount);
break;
}
case PageType::RasterizerCachedMemory: {
if constexpr (!UNSAFE) {
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
@ -255,12 +235,6 @@ public:
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: {
if constexpr (!UNSAFE) {
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
@ -405,16 +379,6 @@ void MemorySystem::MapMemoryRegion(PageTable& page_table, VAddr base, u32 size,
MapPages(page_table, base / CITRA_PAGE_SIZE, size / CITRA_PAGE_SIZE, target, PageType::Memory);
}
void MemorySystem::MapIoRegion(PageTable& page_table, VAddr base, u32 size,
MMIORegionPointer mmio_handler) {
ASSERT_MSG((size & CITRA_PAGE_MASK) == 0, "non-page aligned size: {:08X}", size);
ASSERT_MSG((base & CITRA_PAGE_MASK) == 0, "non-page aligned base: {:08X}", base);
MapPages(page_table, base / CITRA_PAGE_SIZE, size / CITRA_PAGE_SIZE, nullptr,
PageType::Special);
page_table.special_regions.emplace_back(SpecialRegion{base, size, mmio_handler});
}
void MemorySystem::UnmapRegion(PageTable& page_table, VAddr base, u32 size) {
ASSERT_MSG((size & CITRA_PAGE_MASK) == 0, "non-page aligned size: {:08X}", size);
ASSERT_MSG((base & CITRA_PAGE_MASK) == 0, "non-page aligned base: {:08X}", base);
@ -437,9 +401,6 @@ void MemorySystem::UnregisterPageTable(std::shared_ptr<PageTable> page_table) {
}
}
template <typename T>
T ReadMMIO(MMIORegionPointer mmio_handler, VAddr addr);
template <typename T>
T MemorySystem::Read(const VAddr vaddr) {
const u8* page_pointer = impl->current_page_table->pointers[vaddr >> CITRA_PAGE_BITS];
@ -482,8 +443,6 @@ T MemorySystem::Read(const VAddr vaddr) {
std::memcpy(&value, GetPointerForRasterizerCache(vaddr), sizeof(T));
return value;
}
case PageType::Special:
return ReadMMIO<T>(impl->GetMMIOHandler(*impl->current_page_table, vaddr), vaddr);
default:
UNREACHABLE();
}
@ -491,9 +450,6 @@ T MemorySystem::Read(const VAddr vaddr) {
return T{};
}
template <typename T>
void WriteMMIO(MMIORegionPointer mmio_handler, VAddr addr, const T data);
template <typename T>
void MemorySystem::Write(const VAddr vaddr, const T data) {
u8* page_pointer = impl->current_page_table->pointers[vaddr >> CITRA_PAGE_BITS];
@ -531,9 +487,6 @@ void MemorySystem::Write(const VAddr vaddr, const T data) {
std::memcpy(GetPointerForRasterizerCache(vaddr), &data, sizeof(T));
break;
}
case PageType::Special:
WriteMMIO<T>(impl->GetMMIOHandler(*impl->current_page_table, vaddr), vaddr, data);
break;
default:
UNREACHABLE();
}
@ -564,9 +517,6 @@ bool MemorySystem::WriteExclusive(const VAddr vaddr, const T data, const T expec
reinterpret_cast<volatile T*>(GetPointerForRasterizerCache(vaddr).GetPtr());
return Common::AtomicCompareAndSwap(volatile_pointer, data, expected);
}
case PageType::Special:
WriteMMIO<T>(impl->GetMMIOHandler(*impl->current_page_table, vaddr), vaddr, data);
return false;
default:
UNREACHABLE();
}
@ -577,18 +527,12 @@ bool MemorySystem::IsValidVirtualAddress(const Kernel::Process& process, const V
auto& page_table = *process.vm_manager.page_table;
auto page_pointer = page_table.pointers[vaddr >> CITRA_PAGE_BITS];
if (page_pointer)
if (page_pointer) {
return true;
}
if (page_table.attributes[vaddr >> CITRA_PAGE_BITS] == PageType::RasterizerCachedMemory)
if (page_table.attributes[vaddr >> CITRA_PAGE_BITS] == PageType::RasterizerCachedMemory) {
return true;
if (page_table.attributes[vaddr >> CITRA_PAGE_BITS] != PageType::Special)
return false;
MMIORegionPointer mmio_region = impl->GetMMIOHandler(page_table, vaddr);
if (mmio_region) {
return mmio_region->IsValidAddress(vaddr);
}
return false;
@ -923,8 +867,6 @@ void MemorySystem::ZeroBlock(const Kernel::Process& process, const VAddr dest_ad
std::size_t page_index = dest_addr >> CITRA_PAGE_BITS;
std::size_t page_offset = dest_addr & CITRA_PAGE_MASK;
static const std::array<u8, CITRA_PAGE_SIZE> zeros = {};
while (remaining_size > 0) {
const std::size_t copy_amount = std::min(CITRA_PAGE_SIZE - page_offset, remaining_size);
const VAddr current_vaddr =
@ -945,12 +887,6 @@ void MemorySystem::ZeroBlock(const Kernel::Process& process, const VAddr dest_ad
std::memset(dest_ptr, 0, copy_amount);
break;
}
case PageType::Special: {
MMIORegionPointer handler = impl->GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
handler->WriteBlock(current_vaddr, zeros.data(), copy_amount);
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Invalidate);
@ -1000,14 +936,6 @@ void MemorySystem::CopyBlock(const Kernel::Process& dest_process,
WriteBlock(dest_process, dest_addr, src_ptr, copy_amount);
break;
}
case PageType::Special: {
MMIORegionPointer handler = impl->GetMMIOHandler(page_table, current_vaddr);
DEBUG_ASSERT(handler);
std::vector<u8> buffer(copy_amount);
handler->ReadBlock(current_vaddr, buffer.data(), buffer.size());
WriteBlock(dest_process, dest_addr, buffer.data(), buffer.size());
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
FlushMode::Flush);
@ -1027,46 +955,6 @@ void MemorySystem::CopyBlock(const Kernel::Process& dest_process,
}
}
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);
}
u32 MemorySystem::GetFCRAMOffset(const u8* pointer) const {
ASSERT(pointer >= impl->fcram.get() && pointer <= impl->fcram.get() + Memory::FCRAM_N3DS_SIZE);
return static_cast<u32>(pointer - impl->fcram.get());