From 909072abcfed4798f86b14c0a79df057a9e6ab47 Mon Sep 17 00:00:00 2001
From: matt23654 <193348153+matt23654@users.noreply.github.com>
Date: Thu, 27 Nov 2025 11:35:35 +0000
Subject: [PATCH] cuda : fix UMA detection on discrete GPUs. (#17537)

---
 ggml/src/ggml-cuda/ggml-cuda.cu | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ggml/src/ggml-cuda/ggml-cuda.cu b/ggml/src/ggml-cuda/ggml-cuda.cu
index 0b29074f33..aa6570765a 100644
--- a/ggml/src/ggml-cuda/ggml-cuda.cu
+++ b/ggml/src/ggml-cuda/ggml-cuda.cu
@@ -3837,7 +3837,7 @@ static void ggml_backend_cuda_device_get_memory(ggml_backend_dev_t dev, size_t *
 
     // Check if UMA is explicitly enabled via environment variable
     bool uma_env = getenv("GGML_CUDA_ENABLE_UNIFIED_MEMORY") != nullptr;
-    bool is_uma = prop.unifiedAddressing > 0 || uma_env;
+    bool is_uma = prop.integrated > 0 || uma_env;
 
     if (is_uma) {
         // For UMA systems (like DGX Spark), use system memory info