From 40a54a268ffc0fa1d28150054d1fffbe0ea37fd8 Mon Sep 17 00:00:00 2001 From: Juha-Pekka Heikkila Date: Mon, 14 Aug 2023 19:34:45 +0300 Subject: [PATCH] drm/i915/display: add lock while printing frontbuffer tracking bits to debugfs MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add missing spin_lock/unlock Signed-off-by: Juha-Pekka Heikkila Reviewed-by: Jouni Högander Signed-off-by: Jouni Högander Link: https://patchwork.freedesktop.org/patch/msgid/20230814163452.2925-1-juhapekka.heikkila@gmail.com --- drivers/gpu/drm/i915/display/intel_display_debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c index 63c1fb9e479fa..f05b52381a831 100644 --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c @@ -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; } -- 2.30.2