Merge pull request #2256 from bunnei/gpu-vmm

gpu: Rewrite MemoryManager based on the VMManager implementation.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/video_core/engines/maxwell_dma.cpp b/src/video_core/engines/maxwell_dma.cpp
index a0ded4c25..5cca5c29a 100644
--- a/src/video_core/engines/maxwell_dma.cpp
+++ b/src/video_core/engines/maxwell_dma.cpp
@@ -88,6 +88,16 @@ void MaxwellDMA::HandleCopy() {
     auto source_ptr{memory_manager.GetPointer(source)};
     auto dst_ptr{memory_manager.GetPointer(dest)};
 
+    if (!source_ptr) {
+        LOG_ERROR(HW_GPU, "source_ptr is invalid");
+        return;
+    }
+
+    if (!dst_ptr) {
+        LOG_ERROR(HW_GPU, "dst_ptr is invalid");
+        return;
+    }
+
     const auto FlushAndInvalidate = [&](u32 src_size, u64 dst_size) {
         // TODO(Subv): For now, manually flush the regions until we implement GPU-accelerated
         // copying.