}
#ifdef CONFIG_OF
+
+static bool of_check_cache_nodes(struct device_node *np);
+
/* OF properties to query for a given cache type */
struct cache_type_info {
const char *size_prop;
return -ENOENT;
}
+ if (!of_check_cache_nodes(np)) {
+ of_node_put(np);
+ return -ENOENT;
+ }
+
prev = np;
while (index < cache_leaves(cpu)) {
return 0;
}
+static bool of_check_cache_nodes(struct device_node *np)
+{
+ struct device_node *next;
+
+ if (of_property_present(np, "cache-size") ||
+ of_property_present(np, "i-cache-size") ||
+ of_property_present(np, "d-cache-size") ||
+ of_property_present(np, "cache-unified"))
+ return true;
+
+ next = of_find_next_cache_node(np);
+ if (next) {
+ of_node_put(next);
+ return true;
+ }
+
+ return false;
+}
+
static int of_count_cache_leaves(struct device_node *np)
{
unsigned int leaves = 0;
struct device_node *prev = NULL;
unsigned int levels = 0, leaves, level;
+ if (!of_check_cache_nodes(np)) {
+ of_node_put(np);
+ return -ENOENT;
+ }
+
leaves = of_count_cache_leaves(np);
if (leaves > 0)
levels = 1;