Reimplement the invalidate_texture_data_cache register

src/video_core/engines/maxwell_3d.cpp

@@ -186,6 +186,7 @@ bool Maxwell3D::IsMethodExecutable(u32 method) {
     case MAXWELL3D_REG_INDEX(launch_dma):
     case MAXWELL3D_REG_INDEX(inline_data):
     case MAXWELL3D_REG_INDEX(fragment_barrier):
+    case MAXWELL3D_REG_INDEX(invalidate_texture_data_cache):
     case MAXWELL3D_REG_INDEX(tiled_cache_barrier):
         return true;
     default:
@@ -375,6 +376,9 @@ void Maxwell3D::ProcessMethodCall(u32 method, u32 argument, u32 nonshadow_argume
         return;
     case MAXWELL3D_REG_INDEX(fragment_barrier):
         return rasterizer->FragmentBarrier();
+    case MAXWELL3D_REG_INDEX(invalidate_texture_data_cache):
+        rasterizer->InvalidateGPUCache();
+        return rasterizer->WaitForIdle();
     case MAXWELL3D_REG_INDEX(tiled_cache_barrier):
         return rasterizer->TiledCacheBarrier();
     default: