diff options
Diffstat (limited to 'src/core/memory.cpp')
-rw-r--r-- | src/core/memory.cpp | 220 |
1 files changed, 128 insertions, 92 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp index 699c48107..5c940a82e 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -58,35 +58,6 @@ u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) { u8* GetPointerFromVMA(VAddr vaddr) { return ::Memory::GetPointerFromVMA(*Core::System::GetInstance().CurrentProcess(), vaddr); } - -template <typename T> -void Write(const VAddr vaddr, const T data) { - u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS]; - if (page_pointer != nullptr) { - // NOTE: Avoid adding any extra logic to this fast-path block - std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T)); - return; - } - - Common::PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; - switch (type) { - case Common::PageType::Unmapped: - LOG_ERROR(HW_Memory, "Unmapped Write{} 0x{:08X} @ 0x{:016X}", sizeof(data) * 8, - static_cast<u32>(data), vaddr); - return; - case Common::PageType::Memory: - ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr); - break; - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromVMA(vaddr)}; - Core::System::GetInstance().GPU().InvalidateRegion(ToCacheAddr(host_ptr), sizeof(T)); - std::memcpy(host_ptr, &data, sizeof(T)); - break; - } - default: - UNREACHABLE(); - } -} } // Anonymous namespace // Implementation class used to keep the specifics of the memory subsystem hidden @@ -195,6 +166,22 @@ struct Memory::Impl { return Read<u64_le>(addr); } + 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); + } + std::string ReadCString(VAddr vaddr, std::size_t max_length) { std::string string; string.reserve(max_length); @@ -259,6 +246,53 @@ struct Memory::Impl { ReadBlock(*system.CurrentProcess(), src_addr, dest_buffer, size); } + void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer, + const std::size_t size) { + const auto& page_table = process.VMManager().page_table; + std::size_t remaining_size = size; + std::size_t page_index = dest_addr >> PAGE_BITS; + std::size_t page_offset = dest_addr & PAGE_MASK; + + while (remaining_size > 0) { + const std::size_t copy_amount = + std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); + const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); + + switch (page_table.attributes[page_index]) { + case Common::PageType::Unmapped: { + LOG_ERROR(HW_Memory, + "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", + current_vaddr, dest_addr, size); + break; + } + case Common::PageType::Memory: { + DEBUG_ASSERT(page_table.pointers[page_index]); + + u8* const dest_ptr = page_table.pointers[page_index] + page_offset; + std::memcpy(dest_ptr, src_buffer, copy_amount); + break; + } + case Common::PageType::RasterizerCachedMemory: { + u8* const host_ptr = GetPointerFromVMA(process, current_vaddr); + system.GPU().InvalidateRegion(ToCacheAddr(host_ptr), copy_amount); + std::memcpy(host_ptr, 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 std::size_t size) { + WriteBlock(*system.CurrentProcess(), dest_addr, src_buffer, size); + } + void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) { const auto& page_table = process.VMManager().page_table; std::size_t remaining_size = size; @@ -501,6 +535,46 @@ struct Memory::Impl { return {}; } + /** + * Writes a particular data type to memory at the given virtual address. + * + * @param vaddr The virtual address to write the data type to. + * + * @tparam T The data type to write to memory. This type *must* be + * trivially copyable, otherwise the behavior of this function + * is undefined. + * + * @returns The instance of T write to the specified virtual address. + */ + template <typename T> + void Write(const VAddr vaddr, const T data) { + u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS]; + if (page_pointer != nullptr) { + // NOTE: Avoid adding any extra logic to this fast-path block + std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T)); + return; + } + + const Common::PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; + switch (type) { + case Common::PageType::Unmapped: + LOG_ERROR(HW_Memory, "Unmapped Write{} 0x{:08X} @ 0x{:016X}", sizeof(data) * 8, + static_cast<u32>(data), vaddr); + return; + case Common::PageType::Memory: + ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr); + break; + case Common::PageType::RasterizerCachedMemory: { + u8* const host_ptr{GetPointerFromVMA(vaddr)}; + system.GPU().InvalidateRegion(ToCacheAddr(host_ptr), sizeof(T)); + std::memcpy(host_ptr, &data, sizeof(T)); + break; + } + default: + UNREACHABLE(); + } + } + Core::System& system; }; @@ -562,6 +636,22 @@ u64 Memory::Read64(const VAddr addr) { return impl->Read64(addr); } +void Memory::Write8(VAddr addr, u8 data) { + impl->Write8(addr, data); +} + +void Memory::Write16(VAddr addr, u16 data) { + impl->Write16(addr, data); +} + +void Memory::Write32(VAddr addr, u32 data) { + impl->Write32(addr, data); +} + +void Memory::Write64(VAddr addr, u64 data) { + impl->Write64(addr, data); +} + std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) { return impl->ReadCString(vaddr, max_length); } @@ -575,6 +665,15 @@ void Memory::ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_ impl->ReadBlock(src_addr, dest_buffer, size); } +void Memory::WriteBlock(const Kernel::Process& process, VAddr dest_addr, const void* src_buffer, + std::size_t size) { + impl->WriteBlock(process, dest_addr, src_buffer, size); +} + +void Memory::WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { + impl->WriteBlock(dest_addr, src_buffer, size); +} + void Memory::ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size) { impl->ZeroBlock(process, dest_addr, size); } @@ -612,67 +711,4 @@ bool IsKernelVirtualAddress(const VAddr vaddr) { return KERNEL_REGION_VADDR <= vaddr && vaddr < KERNEL_REGION_END; } -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 std::size_t size) { - const auto& page_table = process.VMManager().page_table; - std::size_t remaining_size = size; - std::size_t page_index = dest_addr >> PAGE_BITS; - std::size_t page_offset = dest_addr & PAGE_MASK; - - while (remaining_size > 0) { - const std::size_t copy_amount = - std::min(static_cast<std::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 Common::PageType::Unmapped: { - LOG_ERROR(HW_Memory, - "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", - current_vaddr, dest_addr, size); - break; - } - case Common::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 Common::PageType::RasterizerCachedMemory: { - const auto& host_ptr{GetPointerFromVMA(process, current_vaddr)}; - Core::System::GetInstance().GPU().InvalidateRegion(ToCacheAddr(host_ptr), copy_amount); - std::memcpy(host_ptr, 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 std::size_t size) { - WriteBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_buffer, size); -} - } // namespace Memory |