Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 11bed958 authored by Dave Airlie's avatar Dave Airlie
Browse files

drm/i915: mst topology dumper in debugfs (v0.2) 



use the mst helper code to dump the topology in debugfs.

v0.2: drop is_mst check - as we want to dump other info

Reviewed-by: default avatarTodd Previte <tprevite@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 0e32b39c

drivers/gpu/drm/i915/i915_debugfs.c

+23 −0
Original line number Diff line number Diff line
@@ -2405,6 +2405,28 @@ struct pipe_crc_info { 
	enum pipe pipe;

};



static int i915_dp_mst_info(struct seq_file *m, void *unused)

{

	struct drm_info_node *node = (struct drm_info_node *) m->private;

	struct drm_device *dev = node->minor->dev;

	struct drm_encoder *encoder;

	struct intel_encoder *intel_encoder;

	struct intel_digital_port *intel_dig_port;

	drm_modeset_lock_all(dev);

	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {

		intel_encoder = to_intel_encoder(encoder);

		if (intel_encoder->type != INTEL_OUTPUT_DISPLAYPORT)

			continue;

		intel_dig_port = enc_to_dig_port(encoder);

		if (!intel_dig_port->dp.can_mst)

			continue;



		drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);

	}

	drm_modeset_unlock_all(dev);

	return 0;

}



static int i915_pipe_crc_open(struct inode *inode, struct file *filep)

{

	struct pipe_crc_info *info = inode->i_private;
@@ -3906,6 +3928,7 @@ static const struct drm_info_list i915_debugfs_list[] = { 
	{"i915_display_info", i915_display_info, 0},

	{"i915_semaphore_status", i915_semaphore_status, 0},

	{"i915_shared_dplls_info", i915_shared_dplls_info, 0},

	{"i915_dp_mst_info", i915_dp_mst_info, 0},

};

#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)