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-rw-r--r--src/core/memory.cpp195
1 files changed, 98 insertions, 97 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 4c13ea1e7..017033613 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -20,8 +20,105 @@
#include "video_core/gpu.h"
namespace Memory {
+namespace {
+Common::PageTable* current_page_table = nullptr;
-static Common::PageTable* current_page_table = nullptr;
+/**
+ * Gets a pointer to the exact memory at the virtual address (i.e. not page aligned)
+ * using a VMA from the current process
+ */
+u8* GetPointerFromVMA(const Kernel::Process& process, VAddr vaddr) {
+ const auto& vm_manager = process.VMManager();
+
+ const auto it = vm_manager.FindVMA(vaddr);
+ DEBUG_ASSERT(vm_manager.IsValidHandle(it));
+
+ u8* direct_pointer = nullptr;
+ const 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.
+ */
+u8* GetPointerFromVMA(VAddr vaddr) {
+ return ::Memory::GetPointerFromVMA(*Core::System::GetInstance().CurrentProcess(), 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) {
+ // NOTE: Avoid adding any extra logic to this fast-path block
+ std::memcpy(&page_pointer[vaddr & PAGE_MASK], &data, sizeof(T));
+ return;
+ }
+
+ Common::PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
+ switch (type) {
+ case Common::PageType::Unmapped:
+ LOG_ERROR(HW_Memory, "Unmapped Write{} 0x{:08X} @ 0x{:016X}", sizeof(data) * 8,
+ static_cast<u32>(data), vaddr);
+ return;
+ case Common::PageType::Memory:
+ ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr);
+ break;
+ case Common::PageType::RasterizerCachedMemory: {
+ u8* const host_ptr{GetPointerFromVMA(vaddr)};
+ Core::System::GetInstance().GPU().InvalidateRegion(ToCacheAddr(host_ptr), sizeof(T));
+ std::memcpy(host_ptr, &data, sizeof(T));
+ break;
+ }
+ default:
+ UNREACHABLE();
+ }
+}
+} // Anonymous namespace
// Implementation class used to keep the specifics of the memory subsystem hidden
// from outside classes. This also allows modification to the internals of the memory
@@ -191,102 +288,6 @@ void SetCurrentPageTable(Kernel::Process& process) {
system.ArmInterface(3).PageTableChanged(*current_page_table, address_space_width);
}
-/**
- * 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) {
- const auto& vm_manager = process.VMManager();
-
- const auto it = vm_manager.FindVMA(vaddr);
- DEBUG_ASSERT(vm_manager.IsValidHandle(it));
-
- u8* direct_pointer = nullptr;
- const 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::System::GetInstance().CurrentProcess(), vaddr);
-}
-
-template <typename T>
-T Read(const VAddr vaddr) {
- 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;
- }
-
- 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: {
- auto 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* 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;
- }
-
- Common::PageType type = current_page_table->attributes[vaddr >> PAGE_BITS];
- switch (type) {
- case Common::PageType::Unmapped:
- LOG_ERROR(HW_Memory, "Unmapped Write{} 0x{:08X} @ 0x{:016X}", sizeof(data) * 8,
- static_cast<u32>(data), vaddr);
- return;
- case Common::PageType::Memory:
- ASSERT_MSG(false, "Mapped memory page without a pointer @ {:016X}", vaddr);
- break;
- case Common::PageType::RasterizerCachedMemory: {
- auto host_ptr{GetPointerFromVMA(vaddr)};
- Core::System::GetInstance().GPU().InvalidateRegion(ToCacheAddr(host_ptr), sizeof(T));
- std::memcpy(host_ptr, &data, sizeof(T));
- break;
- }
- default:
- UNREACHABLE();
- }
-}
-
bool IsKernelVirtualAddress(const VAddr vaddr) {
return KERNEL_REGION_VADDR <= vaddr && vaddr < KERNEL_REGION_END;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 23:41:48 +0100