From 2c99dc8a1870c01e9724760aa86c78e0f92b9796 Mon Sep 17 00:00:00 2001
From: Jesse Natalie <jenatali@microsoft.com>
Date: Fri, 10 Apr 2026 15:54:25 -0700
Subject: [PATCH] d3d12: Don't allow CPU storage for huge buffers

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40896>
---
 src/gallium/drivers/d3d12/d3d12_resource.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/d3d12/d3d12_resource.cpp b/src/gallium/drivers/d3d12/d3d12_resource.cpp
index 9b0a4e9d973..88be1bce21e 100644
--- a/src/gallium/drivers/d3d12/d3d12_resource.cpp
+++ b/src/gallium/drivers/d3d12/d3d12_resource.cpp
@@ -513,7 +513,8 @@ d3d12_resource_create_or_place(struct d3d12_screen *screen,
    init_valid_range(res);
    threaded_resource_init(&res->base.b,
       templ->usage == PIPE_USAGE_DEFAULT &&
-      templ->target == PIPE_BUFFER);
+      templ->target == PIPE_BUFFER &&
+      templ->width0 < 0x1000);
 
    memset(&res->bind_counts, 0, sizeof(d3d12_resource::bind_counts));