core/memory: Migrate over ZeroBlock() and CopyBlock() to the Memory class

These currently aren't used anywhere in the codebase, so these are very
trivial to move over to the Memory class.

2 files changed, 161 insertions, 91 deletions

diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 8c3489ed3..c939e980d 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -225,6 +225,99 @@ struct Memory::Impl {
         return string;
     }
 
+    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;
+        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);
+
+            switch (page_table.attributes[page_index]) {
+            case Common::PageType::Unmapped: {
+                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(page_table.pointers[page_index]);
+
+                u8* dest_ptr = page_table.pointers[page_index] + page_offset;
+                std::memset(dest_ptr, 0, copy_amount);
+                break;
+            }
+            case Common::PageType::RasterizerCachedMemory: {
+                u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
+                system.GPU().InvalidateRegion(ToCacheAddr(host_ptr), 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);
+    }
+
+    void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
+                   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 CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
+                          current_vaddr, src_addr, size);
+                ZeroBlock(process, dest_addr, 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;
+                WriteBlock(process, dest_addr, 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);
+                WriteBlock(process, dest_addr, host_ptr, copy_amount);
+                break;
+            }
+            default:
+                UNREACHABLE();
+            }
+
+            page_index++;
+            page_offset = 0;
+            dest_addr += static_cast<VAddr>(copy_amount);
+            src_addr += static_cast<VAddr>(copy_amount);
+            remaining_size -= copy_amount;
+        }
+    }
+
+    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;
@@ -381,6 +474,23 @@ std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) {
     return impl->ReadCString(vaddr, max_length);
 }
 
+void Memory::ZeroBlock(const Kernel::Process& 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::Process& 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);
 }
@@ -529,93 +639,4 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t
     WriteBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_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;
-    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 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 ZeroBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
-                      current_vaddr, dest_addr, size);
-            break;
-        }
-        case Common::PageType::Memory: {
-            DEBUG_ASSERT(page_table.pointers[page_index]);
-
-            u8* dest_ptr = page_table.pointers[page_index] + page_offset;
-            std::memset(dest_ptr, 0, copy_amount);
-            break;
-        }
-        case Common::PageType::RasterizerCachedMemory: {
-            const auto& host_ptr{GetPointerFromVMA(process, current_vaddr)};
-            Core::System::GetInstance().GPU().InvalidateRegion(ToCacheAddr(host_ptr), copy_amount);
-            std::memset(host_ptr, 0, copy_amount);
-            break;
-        }
-        default:
-            UNREACHABLE();
-        }
-
-        page_index++;
-        page_offset = 0;
-        remaining_size -= copy_amount;
-    }
-}
-
-void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
-               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 CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
-                      current_vaddr, src_addr, size);
-            ZeroBlock(process, dest_addr, 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;
-            WriteBlock(process, dest_addr, 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);
-            WriteBlock(process, dest_addr, host_ptr, copy_amount);
-            break;
-        }
-        default:
-            UNREACHABLE();
-        }
-
-        page_index++;
-        page_offset = 0;
-        dest_addr += static_cast<VAddr>(copy_amount);
-        src_addr += static_cast<VAddr>(copy_amount);
-        remaining_size -= copy_amount;
-    }
-}
-
-void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
-    CopyBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_addr, size);
-}
-
 } // namespace Memory
diff --git a/src/core/memory.h b/src/core/memory.h
index 7cd348b49..fc0013a96 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -170,6 +170,57 @@ public:
     std::string ReadCString(VAddr vaddr, std::size_t max_length);
 
     /**
+     * Fills the specified address range within a process' address space with zeroes.
+     *
+     * @param process   The process that will have a portion of its memory zeroed out.
+     * @param dest_addr The starting virtual address of the range to zero out.
+     * @param size      The size of the address range to zero out, in bytes.
+     *
+     * @post The range [dest_addr, size) within the process' address space is
+     *       filled with zeroes.
+     */
+    void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size);
+
+    /**
+     * Fills the specified address range within the current process' address space with zeroes.
+     *
+     * @param dest_addr The starting virtual address of the range to zero out.
+     * @param size      The size of the address range to zero out, in bytes.
+     *
+     * @post The range [dest_addr, size) within the current process' address space is
+     *       filled with zeroes.
+     */
+    void ZeroBlock(VAddr dest_addr, std::size_t size);
+
+    /**
+     * Copies data within a process' address space to another location within the
+     * same address space.
+     *
+     * @param process   The process that will have data copied within its address space.
+     * @param dest_addr The destination virtual address to begin copying the data into.
+     * @param src_addr  The source virtual address to begin copying the data from.
+     * @param size      The size of the data to copy, in bytes.
+     *
+     * @post The range [dest_addr, size) within the process' address space contains the
+     *       same data within the range [src_addr, size).
+     */
+    void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
+                   std::size_t size);
+
+    /**
+     * Copies data within the current process' address space to another location within the
+     * same address space.
+     *
+     * @param dest_addr The destination virtual address to begin copying the data into.
+     * @param src_addr  The source virtual address to begin copying the data from.
+     * @param size      The size of the data to copy, in bytes.
+     *
+     * @post The range [dest_addr, size) within the current process' address space
+     *       contains the same data within the range [src_addr, size).
+     */
+    void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
+
+    /**
      * Marks each page within the specified address range as cached or uncached.
      *
      * @param vaddr  The virtual address indicating the start of the address range.
@@ -206,7 +257,5 @@ void ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size);
 void WriteBlock(const Kernel::Process& process, VAddr dest_addr, const void* src_buffer,
                 std::size_t size);
 void WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size);
-void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size);
-void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
 
 } // namespace Memory