From 0d53786ee5e6c39ca4e1115ceffb6987822bbfe3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Fri, 29 Nov 2019 20:54:31 +0200
Subject: drm/i915: Use drm_modeset_lock_all() in debugfs display info
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Git-commit: 3ff11a0ab5fe69b66e4a2608b3dca13712c0634a
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Make out life easier by just grabbing all modeset locks around
the display_info dump.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191129185434.25549-7-ville.syrjala@linux.intel.com
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/i915_debugfs.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 11f3f91befb9..3bf7d4e2f940 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2667,23 +2667,22 @@ static int i915_display_info(struct seq_file *m, void *unused)
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
+ drm_modeset_lock_all(dev);
+
seq_printf(m, "CRTC info\n");
seq_printf(m, "---------\n");
- for_each_intel_crtc(dev, crtc) {
- drm_modeset_lock(&crtc->base.mutex, NULL);
+ for_each_intel_crtc(dev, crtc)
intel_crtc_info(m, crtc);
- drm_modeset_unlock(&crtc->base.mutex);
- }
seq_printf(m, "\n");
seq_printf(m, "Connector info\n");
seq_printf(m, "--------------\n");
- mutex_lock(&dev->mode_config.mutex);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
intel_connector_info(m, connector);
drm_connector_list_iter_end(&conn_iter);
- mutex_unlock(&dev->mode_config.mutex);
+
+ drm_modeset_unlock_all(dev);
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
--
2.28.0