diff --git a/tests/drivers/display/display_read_write/Kconfig b/tests/drivers/display/display_read_write/Kconfig
new file mode 100644
index 000000000000000..8a19da841e521be
--- /dev/null
+++ b/tests/drivers/display/display_read_write/Kconfig
@@ -0,0 +1,10 @@
+# Copyright (c) 2023 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+mainmenu "Display Read/Write Test"
+
+source "Kconfig.zephyr"
+
+config DISPLAY_READ_WRITE_BUF_SRAM_EXT
+	bool "Buffer allocation is done from sram-ext alias"
+	default n
diff --git a/tests/drivers/display/display_read_write/src/main.c b/tests/drivers/display/display_read_write/src/main.c
index 2ae246e4fb9a696..27d2932540b0587 100644
--- a/tests/drivers/display/display_read_write/src/main.c
+++ b/tests/drivers/display/display_read_write/src/main.c
@@ -8,14 +8,22 @@
 #include <zephyr/ztest.h>
 #include <zephyr/device.h>
 #include <zephyr/logging/log.h>
+#include <zephyr/linker/devicetree_regions.h>
 
 LOG_MODULE_DECLARE(display_api, CONFIG_DISPLAY_LOG_LEVEL);
 
+#if CONFIG_DISPLAY_READ_WRITE_BUF_SRAM_EXT
+#define DISP_BUFFER_LINKER_SECTION	\
+	Z_GENERIC_SECTION(LINKER_DT_NODE_REGION_NAME(DT_ALIAS(sram_ext)))
+#else
+#define DISP_BUFFER_LINKER_SECTION
+#endif
+
 static const struct device *dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));
 static const uint32_t display_width = DT_PROP(DT_CHOSEN(zephyr_display), width);
 static const uint32_t display_height = DT_PROP(DT_CHOSEN(zephyr_display), height);
 static uint8_t disp_buffer[DT_PROP(DT_CHOSEN(zephyr_display), width) *
-			   DT_PROP(DT_CHOSEN(zephyr_display), height) * 4];
+	DT_PROP(DT_CHOSEN(zephyr_display), height) * 4] DISP_BUFFER_LINKER_SECTION;
 static struct display_capabilities cfg;
 static uint8_t bpp;
 static bool is_tiled;