drm/i915/dg1: Fix mapping type for default state object

Use I915_MAP_WC when default state object is allocated in LMEM.

Signed-off-by: Venkata Ramana Nayana <[e-mail]>
Reviewed-by: Matthew Auld <[e-mail]>
Signed-off-by: Matthew Auld <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/gt/shmem_utils.c

···
 #include <linux/shmem_fs.h>
 
 #include "gem/i915_gem_object.h"
+#include "gem/i915_gem_lmem.h"
 #include "shmem_utils.h"
 
 struct file *shmem_create_from_data(const char *name, void *data, size_t len)
···
 		return file;
 	}
 
-	ptr = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WB);
+	ptr = i915_gem_object_pin_map_unlocked(obj, i915_gem_object_is_lmem(obj) ?
+						I915_MAP_WC : I915_MAP_WB);
 	if (IS_ERR(ptr))
 		return ERR_CAST(ptr);