summaryrefslogtreecommitdiffstats
path: root/src/core/memory.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/core/memory.cpp')
-rw-r--r--src/core/memory.cpp228
1 files changed, 132 insertions, 96 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index c939e980d..699c48107 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -60,37 +60,6 @@ u8* GetPointerFromVMA(VAddr vaddr) {
}
template <typename T>
-T Read(const VAddr vaddr) {
- const u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
- if (page_pointer != nullptr) {
- // 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 Common::PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
- switch (type) {
- case Common::PageType::Unmapped:
- LOG_ERROR(HW_Memory, "Unmapped Read{} @ 0x{:08X}", sizeof(T) * 8, vaddr);
- return 0;
- case Common::PageType::Memory:
- ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr);
- break;
- case Common::PageType::RasterizerCachedMemory: {
- const u8* const host_ptr{GetPointerFromVMA(vaddr)};
- Core::System::GetInstance().GPU().FlushRegion(ToCacheAddr(host_ptr), sizeof(T));
- T value;
- std::memcpy(&value, host_ptr, sizeof(T));
- return value;
- }
- default:
- UNREACHABLE();
- }
- return {};
-}
-
-template <typename T>
void Write(const VAddr vaddr, const T data) {
u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
if (page_pointer != nullptr) {
@@ -210,6 +179,22 @@ struct Memory::Impl {
return nullptr;
}
+ u8 Read8(const VAddr addr) {
+ return Read<u8>(addr);
+ }
+
+ u16 Read16(const VAddr addr) {
+ return Read<u16_le>(addr);
+ }
+
+ u32 Read32(const VAddr addr) {
+ return Read<u32_le>(addr);
+ }
+
+ u64 Read64(const VAddr addr) {
+ return Read<u64_le>(addr);
+ }
+
std::string ReadCString(VAddr vaddr, std::size_t max_length) {
std::string string;
string.reserve(max_length);
@@ -225,6 +210,55 @@ struct Memory::Impl {
return string;
}
+ void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
+ 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 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(page_table.pointers[page_index]);
+
+ const u8* const src_ptr = page_table.pointers[page_index] + page_offset;
+ std::memcpy(dest_buffer, 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);
+ 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;
+ }
+ }
+
+ void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
+ ReadBlock(*system.CurrentProcess(), src_addr, dest_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;
@@ -425,6 +459,48 @@ struct Memory::Impl {
}
}
+ /**
+ * Reads a particular data type out of memory at the given virtual address.
+ *
+ * @param vaddr The virtual address to read the data type from.
+ *
+ * @tparam T The data type to read out of memory. This type *must* be
+ * trivially copyable, otherwise the behavior of this function
+ * is undefined.
+ *
+ * @returns The instance of T read from the specified virtual address.
+ */
+ template <typename T>
+ T Read(const VAddr vaddr) {
+ const u8* const page_pointer = current_page_table->pointers[vaddr >> PAGE_BITS];
+ if (page_pointer != nullptr) {
+ // 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 Common::PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
+ switch (type) {
+ case Common::PageType::Unmapped:
+ LOG_ERROR(HW_Memory, "Unmapped Read{} @ 0x{:08X}", sizeof(T) * 8, vaddr);
+ return 0;
+ case Common::PageType::Memory:
+ ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr);
+ break;
+ case Common::PageType::RasterizerCachedMemory: {
+ const u8* const host_ptr = GetPointerFromVMA(vaddr);
+ system.GPU().FlushRegion(ToCacheAddr(host_ptr), sizeof(T));
+ T value;
+ std::memcpy(&value, host_ptr, sizeof(T));
+ return value;
+ }
+ default:
+ UNREACHABLE();
+ }
+ return {};
+ }
+
Core::System& system;
};
@@ -470,10 +546,35 @@ const u8* Memory::GetPointer(VAddr vaddr) const {
return impl->GetPointer(vaddr);
}
+u8 Memory::Read8(const VAddr addr) {
+ return impl->Read8(addr);
+}
+
+u16 Memory::Read16(const VAddr addr) {
+ return impl->Read16(addr);
+}
+
+u32 Memory::Read32(const VAddr addr) {
+ return impl->Read32(addr);
+}
+
+u64 Memory::Read64(const VAddr addr) {
+ return impl->Read64(addr);
+}
+
std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) {
return impl->ReadCString(vaddr, max_length);
}
+void Memory::ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
+ const std::size_t size) {
+ impl->ReadBlock(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::ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size) {
impl->ZeroBlock(process, dest_addr, size);
}
@@ -511,71 +612,6 @@ bool IsKernelVirtualAddress(const VAddr vaddr) {
return KERNEL_REGION_VADDR <= vaddr && vaddr < KERNEL_REGION_END;
}
-u8 Read8(const VAddr addr) {
- return Read<u8>(addr);
-}
-
-u16 Read16(const VAddr addr) {
- return Read<u16_le>(addr);
-}
-
-u32 Read32(const VAddr addr) {
- return Read<u32_le>(addr);
-}
-
-u64 Read64(const VAddr addr) {
- return Read<u64_le>(addr);
-}
-
-void ReadBlock(const Kernel::Process& process, const VAddr src_addr, void* dest_buffer,
- 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 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(page_table.pointers[page_index]);
-
- const u8* src_ptr = page_table.pointers[page_index] + page_offset;
- std::memcpy(dest_buffer, 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);
- 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;
- }
-}
-
-void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) {
- ReadBlock(*Core::System::GetInstance().CurrentProcess(), src_addr, dest_buffer, size);
-}
-
void Write8(const VAddr addr, const u8 data) {
Write<u8>(addr, data);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-20 00:19:19 +0200