Re: [Intel-gfx] [PATCH v2 09/12] drm/debugfs: Add internal client debugfs file

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On Mon, Jun 18, 2018 at 04:17:36PM +0200, Noralf Trønnes wrote:
> Print the names of the internal clients currently attached.
> 
> Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

> ---
>  drivers/gpu/drm/drm_client.c  | 28 ++++++++++++++++++++++++++++
>  drivers/gpu/drm/drm_debugfs.c |  7 +++++++
>  include/drm/drm_client.h      |  2 ++
>  3 files changed, 37 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
> index f1dc04d641cc..3ebb8fa34655 100644
> --- a/drivers/gpu/drm/drm_client.c
> +++ b/drivers/gpu/drm/drm_client.c
> @@ -405,3 +405,31 @@ 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 80fe21c86f69..c3a87d6c30fc 100644
> --- a/include/drm/drm_client.h
> +++ b/include/drm/drm_client.h
> @@ -151,4 +151,6 @@ 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
> -- 
> 2.15.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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