diff options
Diffstat (limited to '')
| -rw-r--r-- | src/core/memory.cpp | 390 |
1 files changed, 190 insertions, 200 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp index d6469dd3d..47c4828f7 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -15,6 +15,7 @@ #include "core/core.h" #include "core/hle/kernel/memory.h" #include "core/hle/kernel/process.h" +#include "core/hle/lock.h" #include "core/memory.h" #include "core/memory_setup.h" #include "video_core/renderer_base.h" @@ -115,91 +116,120 @@ static std::set<MemoryHookPointer> GetSpecialHandlers(VAddr vaddr, u64 size) { return GetSpecialHandlers(page_table, vaddr, size); } -template <typename T> -boost::optional<T> ReadSpecial(VAddr addr); +/** + * Gets a pointer to the exact memory at the virtual address (i.e. not page aligned) + * using a VMA from the current process + */ +static u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) { + u8* direct_pointer = nullptr; + + auto& vm_manager = process.vm_manager; + + auto it = vm_manager.FindVMA(vaddr); + ASSERT(it != vm_manager.vma_map.end()); + + auto& vma = it->second; + switch (vma.type) { + case Kernel::VMAType::AllocatedMemoryBlock: + direct_pointer = vma.backing_block->data() + vma.offset; + break; + case Kernel::VMAType::BackingMemory: + direct_pointer = vma.backing_memory; + break; + case Kernel::VMAType::Free: + return nullptr; + default: + UNREACHABLE(); + } + + return direct_pointer + (vaddr - vma.base); +} + +/** + * Gets a pointer to the exact memory at the virtual address (i.e. not page aligned) + * using a VMA from the current process. + */ +static u8* GetPointerFromVMA(VAddr vaddr) { + return GetPointerFromVMA(*Core::CurrentProcess(), vaddr); +} template <typename T> T Read(const VAddr vaddr) { - if ((vaddr >> PAGE_BITS) >= PAGE_TABLE_NUM_ENTRIES) { - LOG_ERROR(HW_Memory, "Read%lu after page table @ 0x%016" PRIX64, sizeof(T) * 8, vaddr); - return 0; + const u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS]; + if (page_pointer) { + // NOTE: Avoid adding any extra logic to this fast-path block + T value; + std::memcpy(&value, &page_pointer[vaddr & PAGE_MASK], sizeof(T)); + return value; } - const PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; + // The memory access might do an MMIO or cached access, so we have to lock the HLE kernel state + std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock); + + PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; switch (type) { case PageType::Unmapped: - LOG_ERROR(HW_Memory, "unmapped Read%zu @ 0x%016" PRIX64, sizeof(T) * 8, vaddr); + LOG_ERROR(HW_Memory, "unmapped Read%lu @ 0x%08X", sizeof(T) * 8, vaddr); return 0; - case PageType::Special: { - if (auto result = ReadSpecial<T>(vaddr)) - return *result; - [[fallthrough]]; - } - case PageType::Memory: { - const u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS]; - ASSERT_MSG(page_pointer, "Mapped memory page without a pointer @ %016" PRIX64, vaddr); + case PageType::Memory: + ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr); + break; + case PageType::RasterizerCachedMemory: { + RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush); T value; - std::memcpy(&value, &page_pointer[vaddr & PAGE_MASK], sizeof(T)); + std::memcpy(&value, GetPointerFromVMA(vaddr), sizeof(T)); return value; } + default: + UNREACHABLE(); } - UNREACHABLE(); - return 0; } template <typename T> -bool WriteSpecial(VAddr addr, const T data); - -template <typename T> void Write(const VAddr vaddr, const T data) { - if ((vaddr >> PAGE_BITS) >= PAGE_TABLE_NUM_ENTRIES) { - LOG_ERROR(HW_Memory, "Write%lu after page table 0x%08X @ 0x%016" PRIX64, sizeof(data) * 8, - (u32)data, vaddr); + u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS]; + if (page_pointer) { + // NOTE: Avoid adding any extra logic to this fast-path block + std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T)); return; } - const PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; + // The memory access might do an MMIO or cached access, so we have to lock the HLE kernel state + std::lock_guard<std::recursive_mutex> lock(HLE::g_hle_lock); + + PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; switch (type) { case PageType::Unmapped: - LOG_ERROR(HW_Memory, "unmapped Write%zu 0x%08X @ 0x%016" PRIX64, sizeof(data) * 8, - static_cast<u32>(data), vaddr); - return; - case PageType::Special: { - if (WriteSpecial<T>(vaddr, data)) - return; - [[fallthrough]]; - } - case PageType::Memory: { - u8* page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS]; - ASSERT_MSG(page_pointer, "Mapped memory page without a pointer @ %016" PRIX64, vaddr); - std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T)); + LOG_ERROR(HW_Memory, "unmapped Write%lu 0x%08X @ 0x%08X", sizeof(data) * 8, (u32)data, + vaddr); return; + case PageType::Memory: + ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr); + break; + case PageType::RasterizerCachedMemory: { + RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Invalidate); + std::memcpy(GetPointerFromVMA(vaddr), &data, sizeof(T)); + break; } + default: + UNREACHABLE(); } - UNREACHABLE(); } bool IsValidVirtualAddress(const Kernel::Process& process, const VAddr vaddr) { auto& page_table = process.vm_manager.page_table; - if ((vaddr >> PAGE_BITS) >= PAGE_TABLE_NUM_ENTRIES) - return false; + const u8* page_pointer = page_table.pointers[vaddr >> PAGE_BITS]; + if (page_pointer) + return true; - const PageType type = current_page_table->attributes[vaddr >> PAGE_BITS]; - switch (type) { - case PageType::Unmapped: - return false; - case PageType::Memory: + if (page_table.attributes[vaddr >> PAGE_BITS] == PageType::RasterizerCachedMemory) return true; - case PageType::Special: { - for (auto handler : GetSpecialHandlers(page_table, vaddr, 1)) - if (auto result = handler->IsValidAddress(vaddr)) - return *result; - return current_page_table->pointers[vaddr >> PAGE_BITS] != nullptr; - } - } - UNREACHABLE(); + + if (page_table.attributes[vaddr >> PAGE_BITS] != PageType::Special) + return false; + return false; } @@ -217,7 +247,11 @@ u8* GetPointer(const VAddr vaddr) { return page_pointer + (vaddr & PAGE_MASK); } - LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%016" PRIx64, vaddr); + if (current_page_table->attributes[vaddr >> PAGE_BITS] == PageType::RasterizerCachedMemory) { + return GetPointerFromVMA(vaddr); + } + + LOG_ERROR(HW_Memory, "unknown GetPointer @ 0x%08x", vaddr); return nullptr; } @@ -291,6 +325,58 @@ u8* GetPhysicalPointer(PAddr address) { return target_pointer; } +void RasterizerMarkRegionCached(VAddr start, u64 size, bool cached) { + if (start == 0) { + return; + } + + u64 num_pages = ((start + size - 1) >> PAGE_BITS) - (start >> PAGE_BITS) + 1; + VAddr vaddr = start; + + for (unsigned i = 0; i < num_pages; ++i, vaddr += PAGE_SIZE) { + PageType& page_type = current_page_table->attributes[vaddr >> PAGE_BITS]; + + if (cached) { + // Switch page type to cached if now cached + switch (page_type) { + case PageType::Unmapped: + // It is not necessary for a process to have this region mapped into its address + // space, for example, a system module need not have a VRAM mapping. + break; + case PageType::Memory: + page_type = PageType::RasterizerCachedMemory; + current_page_table->pointers[vaddr >> PAGE_BITS] = nullptr; + break; + default: + UNREACHABLE(); + } + } else { + // Switch page type to uncached if now uncached + switch (page_type) { + case PageType::Unmapped: + // It is not necessary for a process to have this region mapped into its address + // space, for example, a system module need not have a VRAM mapping. + break; + case PageType::RasterizerCachedMemory: { + u8* pointer = GetPointerFromVMA(vaddr & ~PAGE_MASK); + if (pointer == nullptr) { + // It's possible that this function has been called while updating the pagetable + // after unmapping a VMA. In that case the underlying VMA will no longer exist, + // and we should just leave the pagetable entry blank. + page_type = PageType::Unmapped; + } else { + page_type = PageType::Memory; + current_page_table->pointers[vaddr >> PAGE_BITS] = pointer; + } + break; + } + default: + UNREACHABLE(); + } + } + } +} + void RasterizerFlushVirtualRegion(VAddr start, u64 size, FlushMode mode) { // Since pages are unmapped on shutdown after video core is shutdown, the renderer may be // null here @@ -344,17 +430,6 @@ u64 Read64(const VAddr addr) { return Read<u64_le>(addr); } -static bool ReadSpecialBlock(const Kernel::Process& process, const VAddr src_addr, - void* dest_buffer, const size_t size) { - auto& page_table = process.vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, src_addr, size)) { - if (handler->ReadBlock(src_addr, dest_buffer, size)) { - return true; - } - } - return false; -} - void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer, const size_t size) { auto& page_table = process.vm_manager.page_table; @@ -364,21 +439,15 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_ size_t page_offset = src_addr & PAGE_MASK; while (remaining_size > 0) { - const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size); + const size_t copy_amount = std::min(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 PageType::Unmapped: - LOG_ERROR(HW_Memory, - "unmapped ReadBlock @ 0x%016" PRIX64 " (start address = 0x%" PRIx64 - ", size = %zu)", + case PageType::Unmapped: { + LOG_ERROR(HW_Memory, "unmapped ReadBlock @ 0x%08X (start address = 0x%08X, size = %zu)", current_vaddr, src_addr, size); std::memset(dest_buffer, 0, copy_amount); break; - case PageType::Special: { - if (ReadSpecialBlock(process, current_vaddr, dest_buffer, copy_amount)) - break; - [[fallthrough]]; } case PageType::Memory: { DEBUG_ASSERT(page_table.pointers[page_index]); @@ -387,6 +456,12 @@ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_ std::memcpy(dest_buffer, src_ptr, copy_amount); break; } + case PageType::RasterizerCachedMemory: { + RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount), + FlushMode::Flush); + std::memcpy(dest_buffer, GetPointerFromVMA(process, current_vaddr), copy_amount); + break; + } default: UNREACHABLE(); } @@ -418,17 +493,6 @@ void Write64(const VAddr addr, const u64 data) { Write<u64_le>(addr, data); } -static bool WriteSpecialBlock(const Kernel::Process& process, const VAddr dest_addr, - const void* src_buffer, const size_t size) { - auto& page_table = process.vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, dest_addr, size)) { - if (handler->WriteBlock(dest_addr, src_buffer, size)) { - return true; - } - } - return false; -} - void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const void* src_buffer, const size_t size) { auto& page_table = process.vm_manager.page_table; @@ -437,20 +501,16 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi size_t page_offset = dest_addr & PAGE_MASK; while (remaining_size > 0) { - const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size); + const size_t copy_amount = std::min(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 PageType::Unmapped: + case PageType::Unmapped: { LOG_ERROR(HW_Memory, - "unmapped WriteBlock @ 0x%016" PRIX64 " (start address = 0x%016" PRIX64 - ", size = %zu)", + "unmapped WriteBlock @ 0x%08X (start address = 0x%08X, size = %zu)", current_vaddr, dest_addr, size); break; - case PageType::Special: - if (WriteSpecialBlock(process, current_vaddr, src_buffer, copy_amount)) - break; - [[fallthrough]]; + } case PageType::Memory: { DEBUG_ASSERT(page_table.pointers[page_index]); @@ -458,6 +518,12 @@ void WriteBlock(const Kernel::Process& process, const VAddr dest_addr, const voi std::memcpy(dest_ptr, src_buffer, copy_amount); break; } + case PageType::RasterizerCachedMemory: { + RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount), + FlushMode::Invalidate); + std::memcpy(GetPointerFromVMA(process, current_vaddr), src_buffer, copy_amount); + break; + } default: UNREACHABLE(); } @@ -473,9 +539,8 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size WriteBlock(*Core::CurrentProcess(), dest_addr, src_buffer, size); } -void ZeroBlock(const VAddr dest_addr, const size_t size) { - const auto& process = *Core::CurrentProcess(); - +void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const size_t size) { + auto& page_table = process.vm_manager.page_table; size_t remaining_size = size; size_t page_index = dest_addr >> PAGE_BITS; size_t page_offset = dest_addr & PAGE_MASK; @@ -483,27 +548,28 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) { static const std::array<u8, PAGE_SIZE> zeros = {}; while (remaining_size > 0) { - const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size); + const size_t copy_amount = std::min(PAGE_SIZE - page_offset, remaining_size); const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); - switch (current_page_table->attributes[page_index]) { - case PageType::Unmapped: - LOG_ERROR(HW_Memory, - "unmapped ZeroBlock @ 0x%016" PRIX64 " (start address = 0x%016" PRIX64 - ", size = %zu)", + switch (page_table.attributes[page_index]) { + case PageType::Unmapped: { + LOG_ERROR(HW_Memory, "unmapped ZeroBlock @ 0x%08X (start address = 0x%08X, size = %zu)", current_vaddr, dest_addr, size); break; - case PageType::Special: - if (WriteSpecialBlock(process, current_vaddr, zeros.data(), copy_amount)) - break; - [[fallthrough]]; + } case PageType::Memory: { - DEBUG_ASSERT(current_page_table->pointers[page_index]); + DEBUG_ASSERT(page_table.pointers[page_index]); - u8* dest_ptr = current_page_table->pointers[page_index] + page_offset; + u8* dest_ptr = page_table.pointers[page_index] + page_offset; std::memset(dest_ptr, 0, copy_amount); break; } + case PageType::RasterizerCachedMemory: { + RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount), + FlushMode::Invalidate); + std::memset(GetPointerFromVMA(process, current_vaddr), 0, copy_amount); + break; + } default: UNREACHABLE(); } @@ -514,37 +580,33 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) { } } -void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) { - const auto& process = *Core::CurrentProcess(); - +void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr, const size_t size) { + auto& page_table = process.vm_manager.page_table; size_t remaining_size = size; size_t page_index = src_addr >> PAGE_BITS; size_t page_offset = src_addr & PAGE_MASK; while (remaining_size > 0) { - const size_t copy_amount = std::min<size_t>(PAGE_SIZE - page_offset, remaining_size); + const size_t copy_amount = std::min(PAGE_SIZE - page_offset, remaining_size); const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); - switch (current_page_table->attributes[page_index]) { - case PageType::Unmapped: - LOG_ERROR(HW_Memory, - "unmapped CopyBlock @ 0x%016" PRIX64 " (start address = 0x%016" PRIX64 - ", size = %zu)", + switch (page_table.attributes[page_index]) { + case PageType::Unmapped: { + LOG_ERROR(HW_Memory, "unmapped CopyBlock @ 0x%08X (start address = 0x%08X, size = %zu)", current_vaddr, src_addr, size); - ZeroBlock(dest_addr, copy_amount); + ZeroBlock(process, dest_addr, copy_amount); break; - case PageType::Special: { - std::vector<u8> buffer(copy_amount); - if (ReadSpecialBlock(process, current_vaddr, buffer.data(), buffer.size())) { - WriteBlock(dest_addr, buffer.data(), buffer.size()); - break; - } - [[fallthrough]]; } case PageType::Memory: { - DEBUG_ASSERT(current_page_table->pointers[page_index]); - const u8* src_ptr = current_page_table->pointers[page_index] + page_offset; - WriteBlock(dest_addr, src_ptr, copy_amount); + 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 PageType::RasterizerCachedMemory: { + RasterizerFlushVirtualRegion(current_vaddr, static_cast<u32>(copy_amount), + FlushMode::Flush); + WriteBlock(process, dest_addr, GetPointerFromVMA(process, current_vaddr), copy_amount); break; } default: @@ -559,78 +621,6 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) { } } -template <> -boost::optional<u8> ReadSpecial<u8>(VAddr addr) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u8))) - if (auto result = handler->Read8(addr)) - return *result; - return {}; -} - -template <> -boost::optional<u16> ReadSpecial<u16>(VAddr addr) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u16))) - if (auto result = handler->Read16(addr)) - return *result; - return {}; -} - -template <> -boost::optional<u32> ReadSpecial<u32>(VAddr addr) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u32))) - if (auto result = handler->Read32(addr)) - return *result; - return {}; -} - -template <> -boost::optional<u64> ReadSpecial<u64>(VAddr addr) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u64))) - if (auto result = handler->Read64(addr)) - return *result; - return {}; -} - -template <> -bool WriteSpecial<u8>(VAddr addr, const u8 data) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u8))) - if (handler->Write8(addr, data)) - return true; - return false; -} - -template <> -bool WriteSpecial<u16>(VAddr addr, const u16 data) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u16))) - if (handler->Write16(addr, data)) - return true; - return false; -} - -template <> -bool WriteSpecial<u32>(VAddr addr, const u32 data) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u32))) - if (handler->Write32(addr, data)) - return true; - return false; -} - -template <> -bool WriteSpecial<u64>(VAddr addr, const u64 data) { - const PageTable& page_table = Core::CurrentProcess()->vm_manager.page_table; - for (const auto& handler : GetSpecialHandlers(page_table, addr, sizeof(u64))) - if (handler->Write64(addr, data)) - return true; - return false; -} - boost::optional<PAddr> TryVirtualToPhysicalAddress(const VAddr addr) { if (addr == 0) { return 0; |