diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/core/memory.cpp | 199 | ||||
-rw-r--r-- | src/core/memory.h | 53 |
2 files changed, 161 insertions, 91 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp index 8c3489ed3..c939e980d 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -225,6 +225,99 @@ struct Memory::Impl { return string; } + 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; + 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 ZeroBlock @ 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::memset(dest_ptr, 0, copy_amount); + break; + } + case Common::PageType::RasterizerCachedMemory: { + u8* const host_ptr = GetPointerFromVMA(process, current_vaddr); + system.GPU().InvalidateRegion(ToCacheAddr(host_ptr), copy_amount); + std::memset(host_ptr, 0, copy_amount); + break; + } + default: + UNREACHABLE(); + } + + page_index++; + page_offset = 0; + remaining_size -= copy_amount; + } + } + + void ZeroBlock(const VAddr dest_addr, const std::size_t size) { + ZeroBlock(*system.CurrentProcess(), dest_addr, size); + } + + void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr, + const std::size_t size) { + const auto& page_table = process.VMManager().page_table; + std::size_t remaining_size = size; + std::size_t page_index = src_addr >> PAGE_BITS; + std::size_t page_offset = src_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 CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", + current_vaddr, src_addr, size); + ZeroBlock(process, dest_addr, copy_amount); + break; + } + case Common::PageType::Memory: { + DEBUG_ASSERT(page_table.pointers[page_index]); + const u8* src_ptr = page_table.pointers[page_index] + page_offset; + WriteBlock(process, dest_addr, src_ptr, copy_amount); + break; + } + case Common::PageType::RasterizerCachedMemory: { + const u8* const host_ptr = GetPointerFromVMA(process, current_vaddr); + system.GPU().FlushRegion(ToCacheAddr(host_ptr), copy_amount); + WriteBlock(process, dest_addr, host_ptr, copy_amount); + 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; + } + } + + void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) { + return CopyBlock(*system.CurrentProcess(), dest_addr, src_addr, size); + } + void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) { if (vaddr == 0) { return; @@ -381,6 +474,23 @@ std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) { return impl->ReadCString(vaddr, max_length); } +void Memory::ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size) { + impl->ZeroBlock(process, dest_addr, size); +} + +void Memory::ZeroBlock(VAddr dest_addr, std::size_t size) { + impl->ZeroBlock(dest_addr, size); +} + +void Memory::CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr, + const std::size_t size) { + impl->CopyBlock(process, dest_addr, src_addr, size); +} + +void Memory::CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) { + impl->CopyBlock(dest_addr, src_addr, size); +} + void Memory::RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) { impl->RasterizerMarkRegionCached(vaddr, size, cached); } @@ -529,93 +639,4 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t WriteBlock(*Core::System::GetInstance().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; - 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 ZeroBlock @ 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::memset(dest_ptr, 0, 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::memset(host_ptr, 0, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - remaining_size -= copy_amount; - } -} - -void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr, - const std::size_t size) { - const auto& page_table = process.VMManager().page_table; - std::size_t remaining_size = size; - std::size_t page_index = src_addr >> PAGE_BITS; - std::size_t page_offset = src_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 CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", - current_vaddr, src_addr, size); - ZeroBlock(process, dest_addr, copy_amount); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(page_table.pointers[page_index]); - const u8* src_ptr = page_table.pointers[page_index] + page_offset; - WriteBlock(process, dest_addr, src_ptr, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - const auto& host_ptr{GetPointerFromVMA(process, current_vaddr)}; - Core::System::GetInstance().GPU().FlushRegion(ToCacheAddr(host_ptr), copy_amount); - WriteBlock(process, dest_addr, host_ptr, copy_amount); - 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; - } -} - -void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) { - CopyBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_addr, size); -} - } // namespace Memory diff --git a/src/core/memory.h b/src/core/memory.h index 7cd348b49..fc0013a96 100644 --- a/src/core/memory.h +++ b/src/core/memory.h @@ -170,6 +170,57 @@ public: std::string ReadCString(VAddr vaddr, std::size_t max_length); /** + * Fills the specified address range within a process' address space with zeroes. + * + * @param process The process that will have a portion of its memory zeroed out. + * @param dest_addr The starting virtual address of the range to zero out. + * @param size The size of the address range to zero out, in bytes. + * + * @post The range [dest_addr, size) within the process' address space is + * filled with zeroes. + */ + void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size); + + /** + * Fills the specified address range within the current process' address space with zeroes. + * + * @param dest_addr The starting virtual address of the range to zero out. + * @param size The size of the address range to zero out, in bytes. + * + * @post The range [dest_addr, size) within the current process' address space is + * filled with zeroes. + */ + void ZeroBlock(VAddr dest_addr, std::size_t size); + + /** + * Copies data within a process' address space to another location within the + * same address space. + * + * @param process The process that will have data copied within its address space. + * @param dest_addr The destination virtual address to begin copying the data into. + * @param src_addr The source virtual address to begin copying the data from. + * @param size The size of the data to copy, in bytes. + * + * @post The range [dest_addr, size) within the process' address space contains the + * same data within the range [src_addr, size). + */ + void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr, + std::size_t size); + + /** + * Copies data within the current process' address space to another location within the + * same address space. + * + * @param dest_addr The destination virtual address to begin copying the data into. + * @param src_addr The source virtual address to begin copying the data from. + * @param size The size of the data to copy, in bytes. + * + * @post The range [dest_addr, size) within the current process' address space + * contains the same data within the range [src_addr, size). + */ + void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size); + + /** * Marks each page within the specified address range as cached or uncached. * * @param vaddr The virtual address indicating the start of the address range. @@ -206,7 +257,5 @@ void ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size); void WriteBlock(const Kernel::Process& process, VAddr dest_addr, const void* src_buffer, std::size_t size); void WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size); -void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size); -void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size); } // namespace Memory |