diff options
Diffstat (limited to 'src/core/memory.cpp')
| -rw-r--r-- | src/core/memory.cpp | 306 |
1 files changed, 77 insertions, 229 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp index f285c6f63..7b23c189c 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -1,11 +1,9 @@ -// Copyright 2015 Citra Emulator Project +// Copyright 2021 Citra Emulator Project // Licensed under GPLv2 or any later version // Refer to the license.txt file included. #include <algorithm> #include <cstring> -#include <optional> -#include <utility> #include "common/assert.h" #include "common/atomic_ops.h" @@ -14,12 +12,10 @@ #include "common/page_table.h" #include "common/settings.h" #include "common/swap.h" -#include "core/arm/arm_interface.h" #include "core/core.h" #include "core/device_memory.h" #include "core/hle/kernel/k_page_table.h" #include "core/hle/kernel/k_process.h" -#include "core/hle/kernel/physical_memory.h" #include "core/memory.h" #include "video_core/gpu.h" @@ -62,17 +58,7 @@ struct Memory::Impl { } } - bool IsValidVirtualAddress(const Kernel::KProcess& process, const VAddr vaddr) const { - const auto& page_table = process.PageTable().PageTableImpl(); - const auto [pointer, type] = page_table.pointers[vaddr >> PAGE_BITS].PointerType(); - return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory; - } - - bool IsValidVirtualAddress(VAddr vaddr) const { - return IsValidVirtualAddress(*system.CurrentProcess(), vaddr); - } - - u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const { + [[nodiscard]] u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const { const PAddr paddr{current_page_table->backing_addr[vaddr >> PAGE_BITS]}; if (!paddr) { @@ -82,7 +68,7 @@ struct Memory::Impl { return system.DeviceMemory().GetPointer(paddr) + vaddr; } - u8* GetPointer(const VAddr vaddr) const { + [[nodiscard]] u8* GetPointer(const VAddr vaddr) const { const uintptr_t raw_pointer = current_page_table->pointers[vaddr >> PAGE_BITS].Raw(); if (u8* const pointer = Common::PageTable::PageInfo::ExtractPointer(raw_pointer)) { return pointer + vaddr; @@ -179,7 +165,7 @@ struct Memory::Impl { std::string string; string.reserve(max_length); for (std::size_t i = 0; i < max_length; ++i) { - const char c = Read8(vaddr); + const char c = Read<s8>(vaddr); if (c == '\0') { break; } @@ -190,15 +176,14 @@ struct Memory::Impl { return string; } - void ReadBlock(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, - const std::size_t size) { + void WalkBlock(const Kernel::KProcess& process, VAddr addr, const std::size_t size, + 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 = src_addr >> PAGE_BITS; - std::size_t page_offset = src_addr & PAGE_MASK; + std::size_t page_index = addr >> PAGE_BITS; + std::size_t page_offset = addr & PAGE_MASK; - while (remaining_size > 0) { + 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); @@ -206,22 +191,18 @@ struct Memory::Impl { const auto [pointer, type] = page_table.pointers[page_index].PointerType(); switch (type) { case Common::PageType::Unmapped: { - LOG_ERROR(HW_Memory, - "Unmapped ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", - current_vaddr, src_addr, size); - std::memset(dest_buffer, 0, copy_amount); + on_unmapped(copy_amount, current_vaddr); break; } case Common::PageType::Memory: { DEBUG_ASSERT(pointer); - const u8* const src_ptr = pointer + page_offset + (page_index << PAGE_BITS); - std::memcpy(dest_buffer, src_ptr, copy_amount); + u8* mem_ptr = pointer + page_offset + (page_index << PAGE_BITS); + on_memory(copy_amount, mem_ptr); break; } case Common::PageType::RasterizerCachedMemory: { - const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; - system.GPU().FlushRegion(current_vaddr, copy_amount); - std::memcpy(dest_buffer, host_ptr, copy_amount); + u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + on_rasterizer(current_vaddr, copy_amount, host_ptr); break; } default: @@ -230,199 +211,98 @@ struct Memory::Impl { page_index++; page_offset = 0; - dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount; + addr += static_cast<VAddr>(copy_amount); + increment(copy_amount); remaining_size -= copy_amount; } } - void ReadBlockUnsafe(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, - const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - - 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); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { + template <bool UNSAFE> + void ReadBlockImpl(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, + const std::size_t size) { + WalkBlock( + process, src_addr, size, + [src_addr, size, &dest_buffer](const std::size_t copy_amount, + const VAddr current_vaddr) { LOG_ERROR(HW_Memory, "Unmapped ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", current_vaddr, src_addr, size); std::memset(dest_buffer, 0, copy_amount); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - const u8* const src_ptr = pointer + page_offset + (page_index << PAGE_BITS); + }, + [&dest_buffer](const std::size_t copy_amount, const u8* const src_ptr) { std::memcpy(dest_buffer, src_ptr, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + }, + [&system = system, &dest_buffer](const VAddr current_vaddr, + const std::size_t copy_amount, + const u8* const host_ptr) { + if (!UNSAFE) { + system.GPU().FlushRegion(current_vaddr, copy_amount); + } std::memcpy(dest_buffer, host_ptr, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount; - remaining_size -= copy_amount; - } + }, + [&dest_buffer](const std::size_t copy_amount) { + dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount; + }); } void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) { - ReadBlock(*system.CurrentProcess(), src_addr, dest_buffer, size); + ReadBlockImpl<false>(*system.CurrentProcess(), src_addr, dest_buffer, size); } void ReadBlockUnsafe(const VAddr src_addr, void* dest_buffer, const std::size_t size) { - ReadBlockUnsafe(*system.CurrentProcess(), src_addr, dest_buffer, size); + ReadBlockImpl<true>(*system.CurrentProcess(), src_addr, dest_buffer, size); } - void WriteBlock(const Kernel::KProcess& process, const VAddr dest_addr, const void* src_buffer, - const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - 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); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { + template <bool UNSAFE> + void WriteBlockImpl(const Kernel::KProcess& process, const VAddr dest_addr, + const void* src_buffer, const std::size_t size) { + WalkBlock( + process, dest_addr, size, + [dest_addr, size](const std::size_t copy_amount, const VAddr current_vaddr) { LOG_ERROR(HW_Memory, "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", current_vaddr, dest_addr, size); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - u8* const dest_ptr = pointer + page_offset + (page_index << PAGE_BITS); + }, + [&src_buffer](const std::size_t copy_amount, u8* const dest_ptr) { std::memcpy(dest_ptr, src_buffer, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; - system.GPU().InvalidateRegion(current_vaddr, copy_amount); - std::memcpy(host_ptr, src_buffer, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - src_buffer = static_cast<const u8*>(src_buffer) + copy_amount; - remaining_size -= copy_amount; - } - } - - void WriteBlockUnsafe(const Kernel::KProcess& process, const VAddr dest_addr, - const void* src_buffer, const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - 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); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { - LOG_ERROR(HW_Memory, - "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", - current_vaddr, dest_addr, size); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - u8* const dest_ptr = pointer + page_offset + (page_index << PAGE_BITS); - std::memcpy(dest_ptr, src_buffer, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + }, + [&system = system, &src_buffer](const VAddr current_vaddr, + const std::size_t copy_amount, u8* const host_ptr) { + if (!UNSAFE) { + system.GPU().InvalidateRegion(current_vaddr, copy_amount); + } std::memcpy(host_ptr, src_buffer, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - src_buffer = static_cast<const u8*>(src_buffer) + copy_amount; - remaining_size -= copy_amount; - } + }, + [&src_buffer](const std::size_t copy_amount) { + src_buffer = static_cast<const u8*>(src_buffer) + copy_amount; + }); } void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { - WriteBlock(*system.CurrentProcess(), dest_addr, src_buffer, size); + WriteBlockImpl<false>(*system.CurrentProcess(), dest_addr, src_buffer, size); } void WriteBlockUnsafe(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { - WriteBlockUnsafe(*system.CurrentProcess(), dest_addr, src_buffer, size); + WriteBlockImpl<true>(*system.CurrentProcess(), dest_addr, src_buffer, size); } void ZeroBlock(const Kernel::KProcess& process, const VAddr dest_addr, const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - 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); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { + WalkBlock( + process, dest_addr, size, + [dest_addr, size](const std::size_t copy_amount, const VAddr current_vaddr) { 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(pointer); - u8* const dest_ptr = pointer + page_offset + (page_index << PAGE_BITS); + }, + [](const std::size_t copy_amount, u8* const dest_ptr) { std::memset(dest_ptr, 0, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + }, + [&system = system](const VAddr current_vaddr, const std::size_t copy_amount, + u8* const host_ptr) { system.GPU().InvalidateRegion(current_vaddr, 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); + }, + [](const std::size_t copy_amount) {}); } void CopyBlock(const Kernel::KProcess& process, VAddr dest_addr, VAddr src_addr, @@ -432,7 +312,7 @@ struct Memory::Impl { std::size_t page_index = src_addr >> PAGE_BITS; std::size_t page_offset = src_addr & PAGE_MASK; - while (remaining_size > 0) { + 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); @@ -449,13 +329,13 @@ struct Memory::Impl { case Common::PageType::Memory: { DEBUG_ASSERT(pointer); const u8* src_ptr = pointer + page_offset + (page_index << PAGE_BITS); - WriteBlock(process, dest_addr, src_ptr, copy_amount); + WriteBlockImpl<false>(process, dest_addr, src_ptr, copy_amount); break; } case Common::PageType::RasterizerCachedMemory: { const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; system.GPU().FlushRegion(current_vaddr, copy_amount); - WriteBlock(process, dest_addr, host_ptr, copy_amount); + WriteBlockImpl<false>(process, dest_addr, host_ptr, copy_amount); break; } default: @@ -470,10 +350,6 @@ struct Memory::Impl { } } - 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; @@ -517,7 +393,6 @@ struct Memory::Impl { case Common::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 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. @@ -789,12 +664,11 @@ void Memory::UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { impl->UnmapRegion(page_table, base, size); } -bool Memory::IsValidVirtualAddress(const Kernel::KProcess& process, const VAddr vaddr) const { - return impl->IsValidVirtualAddress(process, vaddr); -} - bool Memory::IsValidVirtualAddress(const VAddr vaddr) const { - return impl->IsValidVirtualAddress(vaddr); + const Kernel::KProcess& process = *system.CurrentProcess(); + const auto& pageTable = process.PageTable().PageTableImpl(); + const auto [pointer, type] = pageTable.pointers[vaddr >> PAGE_BITS].PointerType(); + return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory; } u8* Memory::GetPointer(VAddr vaddr) { @@ -863,64 +737,38 @@ std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) { void Memory::ReadBlock(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, const std::size_t size) { - impl->ReadBlock(process, src_addr, dest_buffer, size); + impl->ReadBlockImpl<false>(process, src_addr, dest_buffer, size); } void Memory::ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) { impl->ReadBlock(src_addr, dest_buffer, size); } -void Memory::ReadBlockUnsafe(const Kernel::KProcess& process, const VAddr src_addr, - void* dest_buffer, const std::size_t size) { - impl->ReadBlockUnsafe(process, src_addr, dest_buffer, size); -} - void Memory::ReadBlockUnsafe(const VAddr src_addr, void* dest_buffer, const std::size_t size) { impl->ReadBlockUnsafe(src_addr, dest_buffer, size); } void Memory::WriteBlock(const Kernel::KProcess& process, VAddr dest_addr, const void* src_buffer, std::size_t size) { - impl->WriteBlock(process, dest_addr, src_buffer, size); + impl->WriteBlockImpl<false>(process, dest_addr, src_buffer, size); } void Memory::WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { impl->WriteBlock(dest_addr, src_buffer, size); } -void Memory::WriteBlockUnsafe(const Kernel::KProcess& process, VAddr dest_addr, - const void* src_buffer, std::size_t size) { - impl->WriteBlockUnsafe(process, dest_addr, src_buffer, size); -} - void Memory::WriteBlockUnsafe(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { impl->WriteBlockUnsafe(dest_addr, src_buffer, size); } -void Memory::ZeroBlock(const Kernel::KProcess& 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::KProcess& 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); } -bool IsKernelVirtualAddress(const VAddr vaddr) { - return KERNEL_REGION_VADDR <= vaddr && vaddr < KERNEL_REGION_END; -} - } // namespace Core::Memory |