From e9d147349bd90b7b2ee6d0f9f5825de28c3a018e Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Mon, 2 Jul 2018 09:42:48 -0500
Subject: [PATCH] GPU: Allow GpuToCpuAddress to return boost::none for unmapped
 addresses.

---
 src/video_core/memory_manager.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/video_core/memory_manager.cpp b/src/video_core/memory_manager.cpp
index 5cefce9fce..2f814a1842 100644
--- a/src/video_core/memory_manager.cpp
+++ b/src/video_core/memory_manager.cpp
@@ -100,9 +100,9 @@ boost::optional<GPUVAddr> MemoryManager::FindFreeBlock(u64 size, u64 align) {
 
 boost::optional<VAddr> MemoryManager::GpuToCpuAddress(GPUVAddr gpu_addr) {
     VAddr base_addr = PageSlot(gpu_addr);
-    ASSERT(base_addr != static_cast<u64>(PageStatus::Unmapped));
 
-    if (base_addr == static_cast<u64>(PageStatus::Allocated)) {
+    if (base_addr == static_cast<u64>(PageStatus::Allocated) ||
+        base_addr == static_cast<u64>(PageStatus::Unmapped)) {
         return {};
     }