From 9d616e5951f89a602aa822ecdca6a0d7287f36dd Mon Sep 17 00:00:00 2001
From: Weiyi Wang <wwylele@gmail.com>
Date: Mon, 10 Dec 2018 22:05:28 -0500
Subject: [PATCH] Memory: mark pages on mapping if it is already
 rasterizer-cached

---
 src/core/memory.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 75667ad2a6..cfb42c30c0 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -100,6 +100,12 @@ void MemorySystem::MapPages(PageTable& page_table, u32 base, u32 size, u8* memor
         page_table.attributes[base] = type;
         page_table.pointers[base] = memory;
 
+        // If the memory to map is already rasterizer-cached, mark the page
+        if (type == PageType::Memory && impl->cache_marker.IsCached(base * PAGE_SIZE)) {
+            page_table.attributes[base] = PageType::RasterizerCachedMemory;
+            page_table.pointers[base] = nullptr;
+        }
+
         base += 1;
         if (memory != nullptr)
             memory += PAGE_SIZE;