From e896c132eb2cb4975d99477ea7e95aedb6dffa95 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Noralf=20Tr=C3=B8nnes?= Date: Tue, 3 Jul 2018 18:03:51 +0200 Subject: [PATCH] drm/debugfs: Add internal client debugfs file MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Print the names of the internal clients currently attached. Reviewed-by: Daniel Vetter Signed-off-by: Noralf Trønnes Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-6-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 743495f7f833..4039a4d103a8 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -385,3 +385,31 @@ 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 #include +#include #include #include #include @@ -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 671052d80e38..989f8e52864d 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; /** @@ -133,4 +134,6 @@ 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 -- 2.45.2