hw/sparc: Set graphic display dimensions generically

If a dimension is not set, have the machine init code
set the default values.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20260216213121.47122-7-philmd@linaro.org>

hw/sparc/sun4m.c

@@ -892,6 +892,15 @@ static void sun4m_hw_init(MachineState *machine)
                      hwdef->esp_base, slavio_irq[18],
                      hwdef->le_base, slavio_irq[16], &hostid);
 
+    if (!graphic_width) {
+        graphic_width = 1024;
+    }
+    if (!graphic_height) {
+        graphic_height = 768;
+    }
+    if (!graphic_depth) {
+        graphic_depth = 8;
+    }
     if (graphic_depth != 8 && graphic_depth != 24) {
         error_report("Unsupported depth: %d", graphic_depth);
         exit (1);

hw/sparc64/sun4u.c

@@ -666,6 +666,16 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
                                 sysbus_mmio_get_region(s, 0));
     nvram = NVRAM(dev);
  
+    if (!graphic_width) {
+        graphic_width = 1024;
+    }
+    if (!graphic_height) {
+        graphic_height = 768;
+    }
+    if (!graphic_depth) {
+        graphic_depth = 8;
+    }
+
     initrd_size = 0;
     initrd_addr = 0;
     kernel_size = sun4u_load_kernel(machine->kernel_filename,

system/globals-target.c

@@ -9,11 +9,7 @@
 #include "qemu/osdep.h"
 #include "system/system.h"
 
-#ifdef TARGET_SPARC
-int graphic_width = 1024;
-int graphic_height = 768;
-int graphic_depth = 8;
-#elif defined(TARGET_M68K)
+#if defined(TARGET_SPARC) || defined(TARGET_M68K)
 int graphic_width;
 int graphic_height;
 int graphic_depth;