From 17959640c3bfe96a96a600ab14b96658f6acf4d6 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Mon, 22 Aug 2022 20:30:16 +0200
Subject: [PATCH] [dxvk] Work around vkWaitSemaphore incorrectly returning with
 VK_TIMEOUT

---
 src/dxvk/dxvk_queue.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/dxvk/dxvk_queue.cpp b/src/dxvk/dxvk_queue.cpp
index 02671a096..46a594ce0 100644
--- a/src/dxvk/dxvk_queue.cpp
+++ b/src/dxvk/dxvk_queue.cpp
@@ -104,7 +104,13 @@ namespace dxvk {
     waitInfo.pSemaphores = &m_semaphore;
     waitInfo.pValues = &semaphoreValue;
 
-    VkResult vr = vk->vkWaitSemaphores(vk->device(), &waitInfo, ~0ull);
+    // 32-bit winevulkan on Proton seems to be broken here
+    // and returns with VK_TIMEOUT, even though the timeout
+    // is infinite. Work around this by spinning.
+    VkResult vr = VK_TIMEOUT;
+
+    while (vr == VK_TIMEOUT)
+      vr = vk->vkWaitSemaphores(vk->device(), &waitInfo, ~0ull);
 
     if (vr)
       Logger::err(str::format("Failed to synchronize with global timeline semaphore: ", vr));