diff options
| author | Dave Airlie <airlied@redhat.com> | 2014-05-12 15:22:27 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2014-07-22 11:20:42 +1000 |
| commit | 11bed958b72e15fd12d78c30ce49047b94817840 (patch) | |
| tree | 5ec889a95118244554f26f76b120eef5ae512a23 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 0e32b39ceed665bfa4a77a4bc307b6652b991632 (diff) | |
| download | lwn-11bed958b72e15fd12d78c30ce49047b94817840.tar.gz lwn-11bed958b72e15fd12d78c30ce49047b94817840.zip | |
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: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index f27daf70ba72..e6ff0ecf161c 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -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) |