From f07be3b416e2c44a96aba14062d35def50564bc1 Mon Sep 17 00:00:00 2001
From: Silvio Vilerino <sivileri@microsoft.com>
Date: Tue, 21 Apr 2026 14:48:31 -0400
Subject: [PATCH] d3d12: Create PIPE_BIND_SHARED resources with
 D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS

Reviewed-by: Pohsiang (John) Hsu <pohhsu@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41110>
---
 src/gallium/drivers/d3d12/d3d12_resource.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gallium/drivers/d3d12/d3d12_resource.cpp b/src/gallium/drivers/d3d12/d3d12_resource.cpp
index 2c4d500537c..e74f3558fcc 100644
--- a/src/gallium/drivers/d3d12/d3d12_resource.cpp
+++ b/src/gallium/drivers/d3d12/d3d12_resource.cpp
@@ -254,6 +254,10 @@ init_texture(struct d3d12_screen *screen,
    if (templ->bind & PIPE_BIND_RENDER_TARGET)
       desc.Flags |= D3D12_RESOURCE_FLAG_ALLOW_RENDER_TARGET;
 
+   // This is expected from D3D11 openers for D3D12 created shareable resources
+   if (templ->bind & PIPE_BIND_SHARED)
+      desc.Flags |= D3D12_RESOURCE_FLAG_ALLOW_SIMULTANEOUS_ACCESS;
+
    if (templ->bind & PIPE_BIND_DEPTH_STENCIL) {
       desc.Flags |= D3D12_RESOURCE_FLAG_ALLOW_DEPTH_STENCIL;