From 8735a06f3cc36ee113edc848dcb4d6e756eb63b6 Mon Sep 17 00:00:00 2001
From: kd-11 <karokidii@gmail.com>
Date: Fri, 24 Mar 2023 03:04:53 +0300
Subject: [PATCH] vk: GTX970 workaround

---
 rpcs3/Emu/RSX/VK/vkutils/device.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/rpcs3/Emu/RSX/VK/vkutils/device.cpp b/rpcs3/Emu/RSX/VK/vkutils/device.cpp
index a7ce8c9bb5..042617e6af 100644
--- a/rpcs3/Emu/RSX/VK/vkutils/device.cpp
+++ b/rpcs3/Emu/RSX/VK/vkutils/device.cpp
@@ -678,9 +678,21 @@ namespace vk
 		}
 
 		if (g_cfg.video.disable_vulkan_mem_allocator)
+		{
 			m_allocator = std::make_unique<vk::mem_allocator_vk>(dev, pdev);
+		}
 		else
+		{
 			m_allocator = std::make_unique<vk::mem_allocator_vma>(dev, pdev);
+		}
+
+		if (pgpu->props.deviceID == 0x13c2)
+		{
+			// GTX970 workaround/hack
+			// The driver reports a full working 4GB of memory which is incorrect.
+			// Limit to ~3GB to allow vma to avoid running over the headroom of 0.5G.
+			memory_map.device_local_total_bytes = 3072 * 0x100000;
+		}
 	}
 
 	void render_device::destroy()