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Memory: CopyBlock
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parent
e936f5952c
commit
31d49e0109
2 changed files with 43 additions and 2 deletions
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@ -495,6 +495,47 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) {
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}
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}
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}
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}
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void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
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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(PAGE_SIZE - page_offset, remaining_size);
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const VAddr current_vaddr = (page_index << PAGE_BITS) + page_offset;
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switch (current_page_table->attributes[page_index]) {
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case PageType::Unmapped: {
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LOG_ERROR(HW_Memory, "unmapped CopyBlock @ 0x%08X (start address = 0x%08X, size = %zu)", current_vaddr, src_addr, size);
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ZeroBlock(dest_addr, copy_amount);
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break;
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}
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case PageType::Memory: {
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DEBUG_ASSERT(current_page_table->pointers[page_index]);
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const u8* src_ptr = current_page_table->pointers[page_index] + page_offset;
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WriteBlock(dest_addr, src_ptr, copy_amount);
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break;
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}
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case PageType::Special: {
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DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
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std::vector<u8> buffer(copy_amount);
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GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, buffer.data(), buffer.size());
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WriteBlock(dest_addr, buffer.data(), buffer.size());
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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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page_index++;
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page_offset = 0;
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dest_addr += copy_amount;
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src_addr += copy_amount;
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remaining_size -= copy_amount;
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}
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}
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template<>
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template<>
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u8 ReadMMIO<u8>(MMIORegionPointer mmio_handler, VAddr addr) {
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u8 ReadMMIO<u8>(MMIORegionPointer mmio_handler, VAddr addr) {
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return mmio_handler->Read8(addr);
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return mmio_handler->Read8(addr);
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@ -118,15 +118,15 @@ u16 Read16(VAddr addr);
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u32 Read32(VAddr addr);
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u32 Read32(VAddr addr);
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u64 Read64(VAddr addr);
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u64 Read64(VAddr addr);
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void ReadBlock(const VAddr src_addr, u8* dest_buffer, size_t size);
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void Write8(VAddr addr, u8 data);
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void Write8(VAddr addr, u8 data);
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void Write16(VAddr addr, u16 data);
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void Write16(VAddr addr, u16 data);
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void Write32(VAddr addr, u32 data);
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void Write32(VAddr addr, u32 data);
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void Write64(VAddr addr, u64 data);
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void Write64(VAddr addr, u64 data);
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void ReadBlock(const VAddr src_addr, u8* dest_buffer, size_t size);
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void WriteBlock(const VAddr dest_addr, const u8* src_buffer, size_t size);
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void WriteBlock(const VAddr dest_addr, const u8* src_buffer, size_t size);
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void ZeroBlock(const VAddr dest_addr, const size_t size);
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void ZeroBlock(const VAddr dest_addr, const size_t size);
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void CopyBlock(VAddr dest_addr, VAddr src_addr, size_t size);
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u8* GetPointer(VAddr virtual_address);
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u8* GetPointer(VAddr virtual_address);
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