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Diffstat (limited to 'arch/powerpc/kernel/cacheinfo.c')
-rw-r--r--arch/powerpc/kernel/cacheinfo.c69
1 files changed, 40 insertions, 29 deletions
diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index a3c684b4c86..40198d50b4c 100644
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c
@@ -12,7 +12,6 @@
#include <linux/cpu.h>
#include <linux/cpumask.h>
-#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/kobject.h>
#include <linux/list.h>
@@ -131,7 +130,8 @@ static const char *cache_type_string(const struct cache *cache)
return cache_type_info[cache->type].name;
}
-static void __cpuinit cache_init(struct cache *cache, int type, int level, struct device_node *ofnode)
+static void cache_init(struct cache *cache, int type, int level,
+ struct device_node *ofnode)
{
cache->type = type;
cache->level = level;
@@ -140,7 +140,7 @@ static void __cpuinit cache_init(struct cache *cache, int type, int level, struc
list_add(&cache->list, &cache_list);
}
-static struct cache *__cpuinit new_cache(int type, int level, struct device_node *ofnode)
+static struct cache *new_cache(int type, int level, struct device_node *ofnode)
{
struct cache *cache;
@@ -195,7 +195,7 @@ static void cache_cpu_set(struct cache *cache, int cpu)
static int cache_size(const struct cache *cache, unsigned int *ret)
{
const char *propname;
- const u32 *cache_size;
+ const __be32 *cache_size;
propname = cache_type_info[cache->type].size_prop;
@@ -203,7 +203,7 @@ static int cache_size(const struct cache *cache, unsigned int *ret)
if (!cache_size)
return -ENODEV;
- *ret = *cache_size;
+ *ret = of_read_number(cache_size, 1);
return 0;
}
@@ -221,7 +221,7 @@ static int cache_size_kb(const struct cache *cache, unsigned int *ret)
/* not cache_line_size() because that's a macro in include/linux/cache.h */
static int cache_get_line_size(const struct cache *cache, unsigned int *ret)
{
- const u32 *line_size;
+ const __be32 *line_size;
int i, lim;
lim = ARRAY_SIZE(cache_type_info[cache->type].line_size_props);
@@ -238,14 +238,14 @@ static int cache_get_line_size(const struct cache *cache, unsigned int *ret)
if (!line_size)
return -ENODEV;
- *ret = *line_size;
+ *ret = of_read_number(line_size, 1);
return 0;
}
static int cache_nr_sets(const struct cache *cache, unsigned int *ret)
{
const char *propname;
- const u32 *nr_sets;
+ const __be32 *nr_sets;
propname = cache_type_info[cache->type].nr_sets_prop;
@@ -253,7 +253,7 @@ static int cache_nr_sets(const struct cache *cache, unsigned int *ret)
if (!nr_sets)
return -ENODEV;
- *ret = *nr_sets;
+ *ret = of_read_number(nr_sets, 1);
return 0;
}
@@ -324,7 +324,8 @@ static bool cache_node_is_unified(const struct device_node *np)
return of_get_property(np, "cache-unified", NULL);
}
-static struct cache *__cpuinit cache_do_one_devnode_unified(struct device_node *node, int level)
+static struct cache *cache_do_one_devnode_unified(struct device_node *node,
+ int level)
{
struct cache *cache;
@@ -335,7 +336,8 @@ static struct cache *__cpuinit cache_do_one_devnode_unified(struct device_node *
return cache;
}
-static struct cache *__cpuinit cache_do_one_devnode_split(struct device_node *node, int level)
+static struct cache *cache_do_one_devnode_split(struct device_node *node,
+ int level)
{
struct cache *dcache, *icache;
@@ -357,7 +359,7 @@ err:
return NULL;
}
-static struct cache *__cpuinit cache_do_one_devnode(struct device_node *node, int level)
+static struct cache *cache_do_one_devnode(struct device_node *node, int level)
{
struct cache *cache;
@@ -369,7 +371,8 @@ static struct cache *__cpuinit cache_do_one_devnode(struct device_node *node, in
return cache;
}
-static struct cache *__cpuinit cache_lookup_or_instantiate(struct device_node *node, int level)
+static struct cache *cache_lookup_or_instantiate(struct device_node *node,
+ int level)
{
struct cache *cache;
@@ -385,7 +388,7 @@ static struct cache *__cpuinit cache_lookup_or_instantiate(struct device_node *n
return cache;
}
-static void __cpuinit link_cache_lists(struct cache *smaller, struct cache *bigger)
+static void link_cache_lists(struct cache *smaller, struct cache *bigger)
{
while (smaller->next_local) {
if (smaller->next_local == bigger)
@@ -396,13 +399,13 @@ static void __cpuinit link_cache_lists(struct cache *smaller, struct cache *bigg
smaller->next_local = bigger;
}
-static void __cpuinit do_subsidiary_caches_debugcheck(struct cache *cache)
+static void do_subsidiary_caches_debugcheck(struct cache *cache)
{
WARN_ON_ONCE(cache->level != 1);
WARN_ON_ONCE(strcmp(cache->ofnode->type, "cpu"));
}
-static void __cpuinit do_subsidiary_caches(struct cache *cache)
+static void do_subsidiary_caches(struct cache *cache)
{
struct device_node *subcache_node;
int level = cache->level;
@@ -423,7 +426,7 @@ static void __cpuinit do_subsidiary_caches(struct cache *cache)
}
}
-static struct cache *__cpuinit cache_chain_instantiate(unsigned int cpu_id)
+static struct cache *cache_chain_instantiate(unsigned int cpu_id)
{
struct device_node *cpu_node;
struct cache *cpu_cache = NULL;
@@ -448,18 +451,18 @@ out:
return cpu_cache;
}
-static struct cache_dir *__cpuinit cacheinfo_create_cache_dir(unsigned int cpu_id)
+static struct cache_dir *cacheinfo_create_cache_dir(unsigned int cpu_id)
{
struct cache_dir *cache_dir;
- struct sys_device *sysdev;
+ struct device *dev;
struct kobject *kobj = NULL;
- sysdev = get_cpu_sysdev(cpu_id);
- WARN_ONCE(!sysdev, "no sysdev for CPU %i\n", cpu_id);
- if (!sysdev)
+ dev = get_cpu_device(cpu_id);
+ WARN_ONCE(!dev, "no dev for CPU %i\n", cpu_id);
+ if (!dev)
goto err;
- kobj = kobject_create_and_add("cache", &sysdev->kobj);
+ kobj = kobject_create_and_add("cache", &dev->kobj);
if (!kobj)
goto err;
@@ -653,7 +656,7 @@ static struct kobj_type cache_index_type = {
.default_attrs = cache_index_default_attrs,
};
-static void __cpuinit cacheinfo_create_index_opt_attrs(struct cache_index_dir *dir)
+static void cacheinfo_create_index_opt_attrs(struct cache_index_dir *dir)
{
const char *cache_name;
const char *cache_type;
@@ -696,7 +699,8 @@ static void __cpuinit cacheinfo_create_index_opt_attrs(struct cache_index_dir *d
kfree(buf);
}
-static void __cpuinit cacheinfo_create_index_dir(struct cache *cache, int index, struct cache_dir *cache_dir)
+static void cacheinfo_create_index_dir(struct cache *cache, int index,
+ struct cache_dir *cache_dir)
{
struct cache_index_dir *index_dir;
int rc;
@@ -722,7 +726,8 @@ err:
kfree(index_dir);
}
-static void __cpuinit cacheinfo_sysfs_populate(unsigned int cpu_id, struct cache *cache_list)
+static void cacheinfo_sysfs_populate(unsigned int cpu_id,
+ struct cache *cache_list)
{
struct cache_dir *cache_dir;
struct cache *cache;
@@ -740,7 +745,7 @@ static void __cpuinit cacheinfo_sysfs_populate(unsigned int cpu_id, struct cache
}
}
-void __cpuinit cacheinfo_cpu_online(unsigned int cpu_id)
+void cacheinfo_cpu_online(unsigned int cpu_id)
{
struct cache *cache;
@@ -751,7 +756,10 @@ void __cpuinit cacheinfo_cpu_online(unsigned int cpu_id)
cacheinfo_sysfs_populate(cpu_id, cache);
}
-#ifdef CONFIG_HOTPLUG_CPU /* functions needed for cpu offline */
+/* functions needed to remove cache entry for cpu offline or suspend/resume */
+
+#if (defined(CONFIG_PPC_PSERIES) && defined(CONFIG_SUSPEND)) || \
+ defined(CONFIG_HOTPLUG_CPU)
static struct cache *cache_lookup_by_cpu(unsigned int cpu_id)
{
@@ -788,6 +796,9 @@ static void remove_cache_dir(struct cache_dir *cache_dir)
{
remove_index_dirs(cache_dir);
+ /* Remove cache dir from sysfs */
+ kobject_del(cache_dir->kobj);
+
kobject_put(cache_dir->kobj);
kfree(cache_dir);
@@ -835,4 +846,4 @@ void cacheinfo_cpu_offline(unsigned int cpu_id)
if (cache)
cache_cpu_clear(cache, cpu_id);
}
-#endif /* CONFIG_HOTPLUG_CPU */
+#endif /* (CONFIG_PPC_PSERIES && CONFIG_SUSPEND) || CONFIG_HOTPLUG_CPU */