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@ -82,10 +82,10 @@ void UnmapRegion(PageTable& page_table, VAddr base, u32 size) {
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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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static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
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u8* direct_pointer = nullptr;
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auto& vm_manager = Kernel::g_current_process->vm_manager;
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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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@ -107,6 +107,14 @@ static u8* GetPointerFromVMA(VAddr vaddr) {
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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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@ -470,7 +478,10 @@ 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 VAddr src_addr, void* dest_buffer, const size_t size) {
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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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@ -479,7 +490,7 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
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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 = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
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switch (current_page_table->attributes[page_index]) {
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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 = 0x%08X, size = %zu)",
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current_vaddr, src_addr, size);
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@ -487,29 +498,30 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
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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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DEBUG_ASSERT(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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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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DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
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GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, dest_buffer, copy_amount);
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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(current_vaddr), copy_amount);
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std::memcpy(dest_buffer, GetPointerFromVMA(process, current_vaddr), copy_amount);
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break;
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}
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case PageType::RasterizerCachedSpecial: {
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DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
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MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
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DEBUG_ASSERT(handler);
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RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
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FlushMode::Flush);
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GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, dest_buffer, copy_amount);
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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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default:
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@ -523,6 +535,10 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
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}
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}
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void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
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ReadBlock(*Kernel::g_current_process, src_addr, dest_buffer, size);
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}
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void Write8(const VAddr addr, const u8 data) {
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Write<u8>(addr, data);
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}
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@ -539,7 +555,9 @@ void Write64(const VAddr addr, const u64 data) {
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Write<u64_le>(addr, data);
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}
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void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size) {
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void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_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 = dest_addr >> PAGE_BITS;
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size_t page_offset = dest_addr & PAGE_MASK;
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@ -548,7 +566,7 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
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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 = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
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switch (current_page_table->attributes[page_index]) {
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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,
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"unmapped WriteBlock @ 0x%08X (start address = 0x%08X, size = %zu)",
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@ -556,29 +574,30 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
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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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DEBUG_ASSERT(page_table.pointers[page_index]);
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u8* dest_ptr = current_page_table->pointers[page_index] + page_offset;
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u8* dest_ptr = page_table.pointers[page_index] + page_offset;
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std::memcpy(dest_ptr, src_buffer, 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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GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, src_buffer, copy_amount);
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MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
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DEBUG_ASSERT(handler);
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handler->WriteBlock(current_vaddr, src_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::FlushAndInvalidate);
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std::memcpy(GetPointerFromVMA(current_vaddr), src_buffer, copy_amount);
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std::memcpy(GetPointerFromVMA(process, current_vaddr), src_buffer, copy_amount);
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break;
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}
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case PageType::RasterizerCachedSpecial: {
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DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
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MMIORegionPointer handler = GetMMIOHandler(page_table, current_vaddr);
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DEBUG_ASSERT(handler);
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RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount),
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FlushMode::FlushAndInvalidate);
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GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, src_buffer, copy_amount);
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handler->WriteBlock(current_vaddr, src_buffer, copy_amount);
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break;
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}
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default:
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@ -592,6 +611,10 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
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}
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}
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void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size) {
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WriteBlock(*Kernel::g_current_process, dest_addr, src_buffer, size);
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}
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void ZeroBlock(const VAddr dest_addr, const size_t size) {
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size_t remaining_size = size;
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size_t page_index = dest_addr >> PAGE_BITS;
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