From 68be040f4aec52d39f0f3b77236215e2385424e7 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 5 May 2020 12:49:13 +0200
Subject: [PATCH] [dxvk] Use compute queue for transfers if DMA queue is not
 available

Affects RADV. Let's see if this works and does anything for performance.
---
 src/dxvk/dxvk_adapter.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/dxvk/dxvk_adapter.cpp b/src/dxvk/dxvk_adapter.cpp
index a2e900bc0c5..ee3b270f6d9 100644
--- a/src/dxvk/dxvk_adapter.cpp
+++ b/src/dxvk/dxvk_adapter.cpp
@@ -88,12 +88,19 @@ namespace dxvk {
       VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT,
       VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT);
     
+    uint32_t computeQueue = findQueueFamily(
+      VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT,
+      VK_QUEUE_COMPUTE_BIT);
+    
+    if (computeQueue == VK_QUEUE_FAMILY_IGNORED)
+      computeQueue = graphicsQueue;
+
     uint32_t transferQueue = findQueueFamily(
       VK_QUEUE_GRAPHICS_BIT | VK_QUEUE_COMPUTE_BIT | VK_QUEUE_TRANSFER_BIT,
       VK_QUEUE_TRANSFER_BIT);
     
     if (transferQueue == VK_QUEUE_FAMILY_IGNORED)
-      transferQueue = graphicsQueue;
+      transferQueue = computeQueue;
     
     DxvkAdapterQueueIndices queues;
     queues.graphics = graphicsQueue;