Print the names of the internal clients currently attached.
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Signed-off-by: Noralf Trønnes noralf@tronnes.org --- drivers/gpu/drm/drm_client.c | 28 ++++++++++++++++++++++++++++ drivers/gpu/drm/drm_debugfs.c | 7 +++++++ include/drm/drm_client.h | 3 +++ 3 files changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index f05ee98bd10c..e8d7b259ff22 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -375,3 +375,31 @@ void drm_client_framebuffer_delete(struct drm_client_buffer *buffer) drm_client_buffer_delete(buffer); } EXPORT_SYMBOL(drm_client_framebuffer_delete); + +#ifdef CONFIG_DEBUG_FS +static int drm_client_debugfs_internal_clients(struct seq_file *m, void *data) +{ + struct drm_info_node *node = m->private; + struct drm_device *dev = node->minor->dev; + struct drm_printer p = drm_seq_file_printer(m); + struct drm_client_dev *client; + + mutex_lock(&dev->clientlist_mutex); + list_for_each_entry(client, &dev->clientlist, list) + drm_printf(&p, "%s\n", client->name); + mutex_unlock(&dev->clientlist_mutex); + + return 0; +} + +static const struct drm_info_list drm_client_debugfs_list[] = { + { "internal_clients", drm_client_debugfs_internal_clients, 0 }, +}; + +int drm_client_debugfs_init(struct drm_minor *minor) +{ + return drm_debugfs_create_files(drm_client_debugfs_list, + ARRAY_SIZE(drm_client_debugfs_list), + minor->debugfs_root, minor); +} +#endif diff --git a/drivers/gpu/drm/drm_debugfs.c b/drivers/gpu/drm/drm_debugfs.c index b2482818fee8..50a20bfc07ea 100644 --- a/drivers/gpu/drm/drm_debugfs.c +++ b/drivers/gpu/drm/drm_debugfs.c @@ -28,6 +28,7 @@ #include <linux/slab.h> #include <linux/export.h>
+#include <drm/drm_client.h> #include <drm/drm_debugfs.h> #include <drm/drm_edid.h> #include <drm/drm_atomic.h> @@ -164,6 +165,12 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id, DRM_ERROR("Failed to create framebuffer debugfs file\n"); return ret; } + + ret = drm_client_debugfs_init(minor); + if (ret) { + DRM_ERROR("Failed to create client debugfs file\n"); + return ret; + } }
if (dev->driver->debugfs_init) { diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index 02cbb02714d8..e03ac786b0e1 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -10,6 +10,7 @@ struct drm_device; struct drm_file; struct drm_framebuffer; struct drm_gem_object; +struct drm_minor; struct module;
/** @@ -146,4 +147,6 @@ struct drm_client_buffer * drm_client_framebuffer_create(struct drm_client_dev *client, u32 width, u32 height, u32 format); void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
+int drm_client_debugfs_init(struct drm_minor *minor); + #endif