#include "ttm_module.h"
-static void ttm_bo_global_kobj_release(struct kobject *kobj);
-
/*
* ttm_global_mutex - protecting the global BO state
*/
struct ttm_bo_global ttm_bo_glob;
EXPORT_SYMBOL(ttm_bo_glob);
-static struct attribute ttm_bo_count = {
- .name = "bo_count",
- .mode = S_IRUGO
-};
-
/* default destructor */
static void ttm_bo_default_destroy(struct ttm_buffer_object *bo)
{
}
}
-static ssize_t ttm_bo_global_show(struct kobject *kobj,
- struct attribute *attr,
- char *buffer)
-{
- struct ttm_bo_global *glob =
- container_of(kobj, struct ttm_bo_global, kobj);
-
- return snprintf(buffer, PAGE_SIZE, "%d\n",
- atomic_read(&glob->bo_count));
-}
-
-static struct attribute *ttm_bo_global_attrs[] = {
- &ttm_bo_count,
- NULL
-};
-
-static const struct sysfs_ops ttm_bo_global_ops = {
- .show = &ttm_bo_global_show
-};
-
-static struct kobj_type ttm_bo_glob_kobj_type = {
- .release = &ttm_bo_global_kobj_release,
- .sysfs_ops = &ttm_bo_global_ops,
- .default_attrs = ttm_bo_global_attrs
-};
-
static void ttm_bo_del_from_lru(struct ttm_buffer_object *bo)
{
struct ttm_bo_device *bdev = bo->bdev;
}
EXPORT_SYMBOL(ttm_bo_dma_acc_size);
-static void ttm_bo_global_kobj_release(struct kobject *kobj)
-{
- struct ttm_bo_global *glob =
- container_of(kobj, struct ttm_bo_global, kobj);
-
- __free_page(glob->dummy_read_page);
-}
-
static void ttm_bo_global_release(void)
{
struct ttm_bo_global *glob = &ttm_bo_glob;
kobject_del(&glob->kobj);
kobject_put(&glob->kobj);
ttm_mem_global_release(&ttm_mem_glob);
+ __free_page(glob->dummy_read_page);
memset(glob, 0, sizeof(*glob));
out:
mutex_unlock(&ttm_global_mutex);
INIT_LIST_HEAD(&glob->device_list);
atomic_set(&glob->bo_count, 0);
- ret = kobject_init_and_add(
- &glob->kobj, &ttm_bo_glob_kobj_type, ttm_get_kobj(), "buffer_objects");
- if (unlikely(ret != 0))
- kobject_put(&glob->kobj);
+ debugfs_create_atomic_t("buffer_objects", 0444, ttm_debugfs_root,
+ &glob->bo_count);
out:
mutex_unlock(&ttm_global_mutex);
return ret;
#include <linux/module.h>
#include <linux/device.h>
#include <linux/sched.h>
+#include <linux/debugfs.h>
#include <drm/drm_sysfs.h>
#include "ttm_module.h"
static DECLARE_WAIT_QUEUE_HEAD(exit_q);
static atomic_t device_released;
+struct dentry *ttm_debugfs_root;
static struct device_type ttm_drm_class_type = {
.name = "ttm",
if (unlikely(ret != 0))
goto out_no_dev_reg;
+ ttm_debugfs_root = debugfs_create_dir("ttm", NULL);
return 0;
out_no_dev_reg:
atomic_set(&device_released, 1);
*/
wait_event(exit_q, atomic_read(&device_released) == 1);
+ debugfs_remove(ttm_debugfs_root);
}
module_init(ttm_init);