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drm/i915/display: add lock while printing frontbuffer tracking bits to debugfs

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Add missing spin_lock/unlock

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814163452.2925-1-juhapekka.heikkila@gmail.com
This commit is contained in:
Juha-Pekka Heikkila 2023-08-14 19:34:45 +03:00 committed by Jouni Högander
parent 50452f2f76
commit 40a54a268f
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/display/intel_display_debugfs.c
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@ -43,12 +43,16 @@ static int i915_frontbuffer_tracking(struct seq_file *m, void *unused)
{
struct drm_i915_private *dev_priv = node_to_i915(m->private);
spin_lock(&dev_priv->display.fb_tracking.lock);
seq_printf(m, "FB tracking busy bits: 0x%08x\n",
dev_priv->display.fb_tracking.busy_bits);
seq_printf(m, "FB tracking flip bits: 0x%08x\n",
dev_priv->display.fb_tracking.flip_bits);
spin_unlock(&dev_priv->display.fb_tracking.lock);
return 0;
}