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drm/i915/fbc: Pimp the FBC debugfs output

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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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211124113652.22090-21-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2021-11-24 13:36:52 +02:00
parent d5ba72f3c1
commit 812e338619
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/i915/display/intel_fbc.c
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@ -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;
}