drm: Merge drm_info.c into drm_debugfs.c
Ever since
commit cb6458f97b53d7f73043206c18014b3ca63ac345
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Aug 8 15:41:34 2013 +0200
drm: remove procfs code, take 2
Having the code shared between procfs and debugfs in the separate
drm_info.c file stopped making sense. Merge them.
Noticed because Lyude asked some questions on irc about why we even
have drm_info_node and I remember this old story.
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181121213510.31260-1-daniel.vetter@ffwll.ch
diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c
index 373bd4c..f8468ea 100644
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@ -32,6 +32,8 @@
#include <drm/drm_debugfs.h>
#include <drm/drm_edid.h>
#include <drm/drm_atomic.h>
+#include <drm/drm_auth.h>
+#include <drm/drm_gem.h>
#include <drm/drmP.h>
#include "drm_internal.h"
@@ -43,6 +45,93 @@
* Initialization, etc.
**************************************************/
+static int drm_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_minor *minor = node->minor;
+ struct drm_device *dev = minor->dev;
+ struct drm_master *master;
+
+ mutex_lock(&dev->master_mutex);
+ master = dev->master;
+ seq_printf(m, "%s", dev->driver->name);
+ if (dev->dev)
+ seq_printf(m, " dev=%s", dev_name(dev->dev));
+ if (master && master->unique)
+ seq_printf(m, " master=%s", master->unique);
+ if (dev->unique)
+ seq_printf(m, " unique=%s", dev->unique);
+ seq_printf(m, "\n");
+ mutex_unlock(&dev->master_mutex);
+
+ return 0;
+}
+
+static int drm_clients_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_file *priv;
+ kuid_t uid;
+
+ seq_printf(m,
+ "%20s %5s %3s master a %5s %10s\n",
+ "command",
+ "pid",
+ "dev",
+ "uid",
+ "magic");
+
+ /* dev->filelist is sorted youngest first, but we want to present
+ * oldest first (i.e. kernel, servers, clients), so walk backwardss.
+ */
+ mutex_lock(&dev->filelist_mutex);
+ list_for_each_entry_reverse(priv, &dev->filelist, lhead) {
+ struct task_struct *task;
+
+ rcu_read_lock(); /* locks pid_task()->comm */
+ task = pid_task(priv->pid, PIDTYPE_PID);
+ uid = task ? __task_cred(task)->euid : GLOBAL_ROOT_UID;
+ seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n",
+ task ? task->comm : "<unknown>",
+ pid_vnr(priv->pid),
+ priv->minor->index,
+ drm_is_current_master(priv) ? 'y' : 'n',
+ priv->authenticated ? 'y' : 'n',
+ from_kuid_munged(seq_user_ns(m), uid),
+ priv->magic);
+ rcu_read_unlock();
+ }
+ mutex_unlock(&dev->filelist_mutex);
+ return 0;
+}
+
+static int drm_gem_one_name_info(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *obj = ptr;
+ struct seq_file *m = data;
+
+ seq_printf(m, "%6d %8zd %7d %8d\n",
+ obj->name, obj->size,
+ obj->handle_count,
+ kref_read(&obj->refcount));
+ return 0;
+}
+
+static int drm_gem_name_info(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+
+ seq_printf(m, " name size handles refcount\n");
+
+ mutex_lock(&dev->object_name_lock);
+ idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
+ mutex_unlock(&dev->object_name_lock);
+
+ return 0;
+}
+
static const struct drm_info_list drm_debugfs_list[] = {
{"name", drm_name_info, 0},
{"clients", drm_clients_info, 0},