Commit 812e3386 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/fbc: Pimp the FBC debugfs output 



Now that each plane tracks its own no_fbc_reason we can print that
out in debugfs, and we can also show which plane is currently
selected for FBC duty.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211124113652.22090-21-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
parent d5ba72f3

drivers/gpu/drm/i915/display/intel_fbc.c

+18 −0
Original line number Diff line number Diff line
@@ -1688,8 +1688,11 @@ static int intel_fbc_debugfs_status_show(struct seq_file *m, void *unused) 
{

	struct intel_fbc *fbc = m->private;

	struct drm_i915_private *i915 = fbc->i915;

	struct intel_plane *plane;

	intel_wakeref_t wakeref;



	drm_modeset_lock_all(&i915->drm);



	wakeref = intel_runtime_pm_get(&i915->runtime_pm);

	mutex_lock(&fbc->lock);
@@ -1701,9 +1704,24 @@ static int intel_fbc_debugfs_status_show(struct seq_file *m, void *unused) 
		seq_printf(m, "FBC disabled: %s\n", fbc->no_fbc_reason);

	}



	for_each_intel_plane(&i915->drm, plane) {

		const struct intel_plane_state *plane_state =

			to_intel_plane_state(plane->base.state);



		if (plane->fbc != fbc)

			continue;



		seq_printf(m, "%c [PLANE:%d:%s]: %s\n",

			   fbc->state.plane == plane ? '*' : ' ',

			   plane->base.base.id, plane->base.name,

			   plane_state->no_fbc_reason ?: "FBC possible");

	}



	mutex_unlock(&fbc->lock);

	intel_runtime_pm_put(&i915->runtime_pm, wakeref);



	drm_modeset_unlock_all(&i915->drm);



	return 0;

}