diff options
Diffstat (limited to 'src/core/memory.cpp')
| -rw-r--r-- | src/core/memory.cpp | 176 |
1 files changed, 140 insertions, 36 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp index 88d6ec908..2ac792566 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -1,6 +1,5 @@ -// Copyright 2015 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. +// SPDX-FileCopyrightText: 2015 Citra Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later #include <algorithm> #include <cstring> @@ -37,11 +36,11 @@ struct Memory::Impl { } void MapMemoryRegion(Common::PageTable& page_table, VAddr base, u64 size, PAddr target) { - ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); - ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); - ASSERT_MSG(target >= DramMemoryMap::Base && target < DramMemoryMap::End, - "Out of bounds target: {:016X}", target); - MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, target, Common::PageType::Memory); + ASSERT_MSG((size & YUZU_PAGEMASK) == 0, "non-page aligned size: {:016X}", size); + ASSERT_MSG((base & YUZU_PAGEMASK) == 0, "non-page aligned base: {:016X}", base); + ASSERT_MSG(target >= DramMemoryMap::Base, "Out of bounds target: {:016X}", target); + MapPages(page_table, base / YUZU_PAGESIZE, size / YUZU_PAGESIZE, target, + Common::PageType::Memory); if (Settings::IsFastmemEnabled()) { system.DeviceMemory().buffer.Map(base, target - DramMemoryMap::Base, size); @@ -49,9 +48,10 @@ struct Memory::Impl { } void UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { - ASSERT_MSG((size & PAGE_MASK) == 0, "non-page aligned size: {:016X}", size); - ASSERT_MSG((base & PAGE_MASK) == 0, "non-page aligned base: {:016X}", base); - MapPages(page_table, base / PAGE_SIZE, size / PAGE_SIZE, 0, Common::PageType::Unmapped); + ASSERT_MSG((size & YUZU_PAGEMASK) == 0, "non-page aligned size: {:016X}", size); + ASSERT_MSG((base & YUZU_PAGEMASK) == 0, "non-page aligned base: {:016X}", base); + MapPages(page_table, base / YUZU_PAGESIZE, size / YUZU_PAGESIZE, 0, + Common::PageType::Unmapped); if (Settings::IsFastmemEnabled()) { system.DeviceMemory().buffer.Unmap(base, size); @@ -59,7 +59,7 @@ struct Memory::Impl { } [[nodiscard]] u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const { - const PAddr paddr{current_page_table->backing_addr[vaddr >> PAGE_BITS]}; + const PAddr paddr{current_page_table->backing_addr[vaddr >> YUZU_PAGEBITS]}; if (!paddr) { return {}; @@ -68,6 +68,16 @@ struct Memory::Impl { return system.DeviceMemory().GetPointer(paddr) + vaddr; } + [[nodiscard]] u8* GetPointerFromDebugMemory(VAddr vaddr) const { + const PAddr paddr{current_page_table->backing_addr[vaddr >> YUZU_PAGEBITS]}; + + if (paddr == 0) { + return {}; + } + + return system.DeviceMemory().GetPointer(paddr) + vaddr; + } + u8 Read8(const VAddr addr) { return Read<u8>(addr); } @@ -168,13 +178,14 @@ struct Memory::Impl { auto on_unmapped, auto on_memory, auto on_rasterizer, auto increment) { const auto& page_table = process.PageTable().PageTableImpl(); std::size_t remaining_size = size; - std::size_t page_index = addr >> PAGE_BITS; - std::size_t page_offset = addr & PAGE_MASK; + std::size_t page_index = addr >> YUZU_PAGEBITS; + std::size_t page_offset = addr & YUZU_PAGEMASK; while (remaining_size) { 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); + std::min(static_cast<std::size_t>(YUZU_PAGESIZE) - page_offset, remaining_size); + const auto current_vaddr = + static_cast<VAddr>((page_index << YUZU_PAGEBITS) + page_offset); const auto [pointer, type] = page_table.pointers[page_index].PointerType(); switch (type) { @@ -184,7 +195,13 @@ struct Memory::Impl { } case Common::PageType::Memory: { DEBUG_ASSERT(pointer); - u8* mem_ptr = pointer + page_offset + (page_index << PAGE_BITS); + u8* mem_ptr = pointer + page_offset + (page_index << YUZU_PAGEBITS); + on_memory(copy_amount, mem_ptr); + break; + } + case Common::PageType::DebugMemory: { + DEBUG_ASSERT(pointer); + u8* const mem_ptr{GetPointerFromDebugMemory(current_vaddr)}; on_memory(copy_amount, mem_ptr); break; } @@ -317,6 +334,58 @@ struct Memory::Impl { }); } + void MarkRegionDebug(VAddr vaddr, u64 size, bool debug) { + if (vaddr == 0) { + return; + } + + // Iterate over a contiguous CPU address space, marking/unmarking the region. + // The region is at a granularity of CPU pages. + + const u64 num_pages = ((vaddr + size - 1) >> YUZU_PAGEBITS) - (vaddr >> YUZU_PAGEBITS) + 1; + for (u64 i = 0; i < num_pages; ++i, vaddr += YUZU_PAGESIZE) { + const Common::PageType page_type{ + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Type()}; + if (debug) { + // Switch page type to debug if now debug + switch (page_type) { + case Common::PageType::Unmapped: + ASSERT_MSG(false, "Attempted to mark unmapped pages as debug"); + break; + case Common::PageType::RasterizerCachedMemory: + case Common::PageType::DebugMemory: + // Page is already marked. + break; + case Common::PageType::Memory: + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Store( + nullptr, Common::PageType::DebugMemory); + break; + default: + UNREACHABLE(); + } + } else { + // Switch page type to non-debug if now non-debug + switch (page_type) { + case Common::PageType::Unmapped: + ASSERT_MSG(false, "Attempted to mark unmapped pages as non-debug"); + break; + case Common::PageType::RasterizerCachedMemory: + case Common::PageType::Memory: + // Don't mess with already non-debug or rasterizer memory. + break; + case Common::PageType::DebugMemory: { + u8* const pointer{GetPointerFromDebugMemory(vaddr & ~YUZU_PAGEMASK)}; + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Store( + pointer - (vaddr & ~YUZU_PAGEMASK), Common::PageType::Memory); + break; + } + default: + UNREACHABLE(); + } + } + } + } + void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) { if (vaddr == 0) { return; @@ -332,10 +401,10 @@ struct Memory::Impl { // granularity of CPU pages, hence why we iterate on a CPU page basis (note: GPU page size // is different). This assumes the specified GPU address region is contiguous as well. - const u64 num_pages = ((vaddr + size - 1) >> PAGE_BITS) - (vaddr >> PAGE_BITS) + 1; - for (u64 i = 0; i < num_pages; ++i, vaddr += PAGE_SIZE) { + const u64 num_pages = ((vaddr + size - 1) >> YUZU_PAGEBITS) - (vaddr >> YUZU_PAGEBITS) + 1; + for (u64 i = 0; i < num_pages; ++i, vaddr += YUZU_PAGESIZE) { const Common::PageType page_type{ - current_page_table->pointers[vaddr >> PAGE_BITS].Type()}; + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Type()}; if (cached) { // Switch page type to cached if now cached switch (page_type) { @@ -343,8 +412,9 @@ struct Memory::Impl { // 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 Common::PageType::DebugMemory: case Common::PageType::Memory: - current_page_table->pointers[vaddr >> PAGE_BITS].Store( + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Store( nullptr, Common::PageType::RasterizerCachedMemory); break; case Common::PageType::RasterizerCachedMemory: @@ -361,21 +431,22 @@ struct Memory::Impl { // 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 Common::PageType::DebugMemory: case Common::PageType::Memory: // There can be more than one GPU region mapped per CPU region, so it's common // that this area is already unmarked as cached. break; case Common::PageType::RasterizerCachedMemory: { - u8* const pointer{GetPointerFromRasterizerCachedMemory(vaddr & ~PAGE_MASK)}; + u8* const pointer{GetPointerFromRasterizerCachedMemory(vaddr & ~YUZU_PAGEMASK)}; 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. - current_page_table->pointers[vaddr >> PAGE_BITS].Store( + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Store( nullptr, Common::PageType::Unmapped); } else { - current_page_table->pointers[vaddr >> PAGE_BITS].Store( - pointer - (vaddr & ~PAGE_MASK), Common::PageType::Memory); + current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Store( + pointer - (vaddr & ~YUZU_PAGEMASK), Common::PageType::Memory); } break; } @@ -397,8 +468,8 @@ struct Memory::Impl { */ void MapPages(Common::PageTable& page_table, VAddr base, u64 size, PAddr target, Common::PageType type) { - LOG_DEBUG(HW_Memory, "Mapping {:016X} onto {:016X}-{:016X}", target, base * PAGE_SIZE, - (base + size) * PAGE_SIZE); + LOG_DEBUG(HW_Memory, "Mapping {:016X} onto {:016X}-{:016X}", target, base * YUZU_PAGESIZE, + (base + size) * YUZU_PAGESIZE); // During boot, current_page_table might not be set yet, in which case we need not flush if (system.IsPoweredOn()) { @@ -406,7 +477,7 @@ struct Memory::Impl { for (u64 i = 0; i < size; i++) { const auto page = base + i; if (page_table.pointers[page].Type() == Common::PageType::RasterizerCachedMemory) { - gpu.FlushAndInvalidateRegion(page << PAGE_BITS, PAGE_SIZE); + gpu.FlushAndInvalidateRegion(page << YUZU_PAGEBITS, YUZU_PAGESIZE); } } } @@ -417,7 +488,7 @@ struct Memory::Impl { if (!target) { ASSERT_MSG(type != Common::PageType::Memory, - "Mapping memory page without a pointer @ {:016x}", base * PAGE_SIZE); + "Mapping memory page without a pointer @ {:016x}", base * YUZU_PAGESIZE); while (base != end) { page_table.pointers[base].Store(nullptr, type); @@ -428,21 +499,21 @@ struct Memory::Impl { } else { while (base != end) { page_table.pointers[base].Store( - system.DeviceMemory().GetPointer(target) - (base << PAGE_BITS), type); - page_table.backing_addr[base] = target - (base << PAGE_BITS); + system.DeviceMemory().GetPointer(target) - (base << YUZU_PAGEBITS), type); + page_table.backing_addr[base] = target - (base << YUZU_PAGEBITS); ASSERT_MSG(page_table.pointers[base].Pointer(), "memory mapping base yield a nullptr within the table"); base += 1; - target += PAGE_SIZE; + target += YUZU_PAGESIZE; } } } [[nodiscard]] u8* GetPointerImpl(VAddr vaddr, auto on_unmapped, auto on_rasterizer) const { // AARCH64 masks the upper 16 bit of all memory accesses - vaddr &= 0xffffffffffffLL; + vaddr &= 0xffffffffffffULL; if (vaddr >= 1uLL << current_page_table->GetAddressSpaceBits()) { on_unmapped(); @@ -450,7 +521,7 @@ struct Memory::Impl { } // Avoid adding any extra logic to this fast-path block - const uintptr_t raw_pointer = current_page_table->pointers[vaddr >> PAGE_BITS].Raw(); + const uintptr_t raw_pointer = current_page_table->pointers[vaddr >> YUZU_PAGEBITS].Raw(); if (u8* const pointer = Common::PageTable::PageInfo::ExtractPointer(raw_pointer)) { return &pointer[vaddr]; } @@ -461,6 +532,8 @@ struct Memory::Impl { case Common::PageType::Memory: ASSERT_MSG(false, "Mapped memory page without a pointer @ 0x{:016X}", vaddr); return nullptr; + case Common::PageType::DebugMemory: + return GetPointerFromDebugMemory(vaddr); case Common::PageType::RasterizerCachedMemory: { u8* const host_ptr{GetPointerFromRasterizerCachedMemory(vaddr)}; on_rasterizer(); @@ -478,6 +551,11 @@ struct Memory::Impl { []() {}); } + [[nodiscard]] u8* GetPointerSilent(const VAddr vaddr) const { + return GetPointerImpl( + vaddr, []() {}, []() {}); + } + /** * Reads a particular data type out of memory at the given virtual address. * @@ -587,18 +665,36 @@ void Memory::UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { bool Memory::IsValidVirtualAddress(const VAddr vaddr) const { const Kernel::KProcess& process = *system.CurrentProcess(); const auto& page_table = process.PageTable().PageTableImpl(); - const size_t page = vaddr >> PAGE_BITS; + const size_t page = vaddr >> YUZU_PAGEBITS; if (page >= page_table.pointers.size()) { return false; } const auto [pointer, type] = page_table.pointers[page].PointerType(); - return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory; + return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory || + type == Common::PageType::DebugMemory; +} + +bool Memory::IsValidVirtualAddressRange(VAddr base, u64 size) const { + VAddr end = base + size; + VAddr page = Common::AlignDown(base, YUZU_PAGESIZE); + + for (; page < end; page += YUZU_PAGESIZE) { + if (!IsValidVirtualAddress(page)) { + return false; + } + } + + return true; } u8* Memory::GetPointer(VAddr vaddr) { return impl->GetPointer(vaddr); } +u8* Memory::GetPointerSilent(VAddr vaddr) { + return impl->GetPointerSilent(vaddr); +} + const u8* Memory::GetPointer(VAddr vaddr) const { return impl->GetPointer(vaddr); } @@ -691,8 +787,16 @@ void Memory::CopyBlock(const Kernel::KProcess& process, VAddr dest_addr, VAddr s impl->CopyBlock(process, dest_addr, src_addr, size); } +void Memory::ZeroBlock(const Kernel::KProcess& process, VAddr dest_addr, const std::size_t size) { + impl->ZeroBlock(process, dest_addr, size); +} + void Memory::RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) { impl->RasterizerMarkRegionCached(vaddr, size, cached); } +void Memory::MarkRegionDebug(VAddr vaddr, u64 size, bool debug) { + impl->MarkRegionDebug(vaddr, size, debug); +} + } // namespace Core::Memory |