@@ -20,7 +20,6 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
struct device_node *node,
enum cache_type type, unsigned int level)
{
- this_leaf->of_node = node;
this_leaf->level = level;
this_leaf->type = type;
/* not a sector cache */
@@ -71,7 +71,7 @@ static inline int get_cacheinfo_idx(enum cache_type type)
return type;
}
-static void cache_size(struct cacheinfo *this_leaf)
+static void cache_size(struct cacheinfo *this_leaf, struct device_node *np)
{
const char *propname;
const __be32 *cache_size;
@@ -80,13 +80,14 @@ static void cache_size(struct cacheinfo *this_leaf)
ct_idx = get_cacheinfo_idx(this_leaf->type);
propname = cache_type_info[ct_idx].size_prop;
- cache_size = of_get_property(this_leaf->of_node, propname, NULL);
+ cache_size = of_get_property(np, propname, NULL);
if (cache_size)
this_leaf->size = of_read_number(cache_size, 1);
}
/* not cache_line_size() because that's a macro in include/linux/cache.h */
-static void cache_get_line_size(struct cacheinfo *this_leaf)
+static void cache_get_line_size(struct cacheinfo *this_leaf,
+ struct device_node *np)
{
const __be32 *line_size;
int i, lim, ct_idx;
@@ -98,7 +99,7 @@ static void cache_get_line_size(struct cacheinfo *this_leaf)
const char *propname;
propname = cache_type_info[ct_idx].line_size_props[i];
- line_size = of_get_property(this_leaf->of_node, propname, NULL);
+ line_size = of_get_property(np, propname, NULL);
if (line_size)
break;
}
@@ -107,7 +108,7 @@ static void cache_get_line_size(struct cacheinfo *this_leaf)
this_leaf->coherency_line_size = of_read_number(line_size, 1);
}
-static void cache_nr_sets(struct cacheinfo *this_leaf)
+static void cache_nr_sets(struct cacheinfo *this_leaf, struct device_node *np)
{
const char *propname;
const __be32 *nr_sets;
@@ -116,7 +117,7 @@ static void cache_nr_sets(struct cacheinfo *this_leaf)
ct_idx = get_cacheinfo_idx(this_leaf->type);
propname = cache_type_info[ct_idx].nr_sets_prop;
- nr_sets = of_get_property(this_leaf->of_node, propname, NULL);
+ nr_sets = of_get_property(np, propname, NULL);
if (nr_sets)
this_leaf->number_of_sets = of_read_number(nr_sets, 1);
}
@@ -135,32 +136,27 @@ static void cache_associativity(struct cacheinfo *this_leaf)
this_leaf->ways_of_associativity = (size / nr_sets) / line_size;
}
-static bool cache_node_is_unified(struct cacheinfo *this_leaf)
+static bool cache_node_is_unified(struct cacheinfo *this_leaf,
+ struct device_node *np)
{
- return of_property_read_bool(this_leaf->of_node, "cache-unified");
+ return of_property_read_bool(np, "cache-unified");
}
-static void cache_of_override_properties(unsigned int cpu)
+static void cache_of_set_props(struct cacheinfo *this_leaf,
+ struct device_node *np)
{
- int index;
- struct cacheinfo *this_leaf;
- struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
-
- for (index = 0; index < cache_leaves(cpu); index++) {
- this_leaf = this_cpu_ci->info_list + index;
- /*
- * init_cache_level must setup the cache level correctly
- * overriding the architecturally specified levels, so
- * if type is NONE at this stage, it should be unified
- */
- if (this_leaf->type == CACHE_TYPE_NOCACHE &&
- cache_node_is_unified(this_leaf))
- this_leaf->type = CACHE_TYPE_UNIFIED;
- cache_size(this_leaf);
- cache_get_line_size(this_leaf);
- cache_nr_sets(this_leaf);
- cache_associativity(this_leaf);
- }
+ /*
+ * init_cache_level must setup the cache level correctly
+ * overriding the architecturally specified levels, so
+ * if type is NONE at this stage, it should be unified
+ */
+ if (this_leaf->type == CACHE_TYPE_NOCACHE &&
+ cache_node_is_unified(this_leaf, np))
+ this_leaf->type = CACHE_TYPE_UNIFIED;
+ cache_size(this_leaf, np);
+ cache_get_line_size(this_leaf, np);
+ cache_nr_sets(this_leaf, np);
+ cache_associativity(this_leaf);
}
static int cache_setup_of_node(unsigned int cpu)
@@ -193,6 +189,7 @@ static int cache_setup_of_node(unsigned int cpu)
np = of_node_get(np);/* cpu node itself */
if (!np)
break;
+ cache_of_set_props(this_leaf, np);
this_leaf->of_node = np;
index++;
}
@@ -203,7 +200,6 @@ static int cache_setup_of_node(unsigned int cpu)
return 0;
}
#else
-static void cache_of_override_properties(unsigned int cpu) { }
static inline int cache_setup_of_node(unsigned int cpu) { return 0; }
static inline bool cache_leaves_are_shared(struct cacheinfo *this_leaf,
struct cacheinfo *sib_leaf)
@@ -286,12 +282,6 @@ static void cache_shared_cpu_map_remove(unsigned int cpu)
}
}
-static void cache_override_properties(unsigned int cpu)
-{
- if (of_have_populated_dt())
- return cache_of_override_properties(cpu);
-}
-
static void free_cache_attributes(unsigned int cpu)
{
if (!per_cpu_cacheinfo(cpu))
@@ -325,6 +315,10 @@ static int detect_cache_attributes(unsigned int cpu)
if (per_cpu_cacheinfo(cpu) == NULL)
return -ENOMEM;
+ /*
+ * populate_cache_leaves() may completely setup the cache leaves and
+ * shared_cpu_map or it may leave it partially setup.
+ */
ret = populate_cache_leaves(cpu);
if (ret)
goto free_ci;
@@ -338,7 +332,6 @@ static int detect_cache_attributes(unsigned int cpu)
goto free_ci;
}
- cache_override_properties(cpu);
return 0;
free_ci: