[Intel-gfx] [PATCH] drm/i915/display: add lock while printing frontbuffer tracking bits to debugfs

[Hogander, Jouni]

On Mon, 2023-08-21 at 06:33 +0000, Hogander, Jouni wrote:
> On Mon, 2023-08-14 at 19:34 +0300, Juha-Pekka Heikkila wrote:
> > Add missing spin_lock/unlock
> > 
> > Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
> 
> Reviewed-by: Jouni Högander <jouni.hogander at intel.com>

Thank you for the patch. This is now merged.

BR,

Jouni Högander

> 
> > ---
> >  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 63c1fb9e479f..f05b52381a83 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;
> >  }
> >  
>