Re: [PATCH 4/4] drm/i915: remove i915_rstdby_delays debugfs entry

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On Wed,  9 Jul 2014 15:10:46 +0300
Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> wrote:

> CHV hard hangs on reading on 0x11100
> 
> References: https://bugs.freedesktop.org/show_bug.cgi?id=80893
> Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c |   24 ------------------------
>  1 file changed, 24 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index 21e1f92..3945191 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -994,29 +994,6 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
>  			i915_next_seqno_get, i915_next_seqno_set,
>  			"0x%llx\n");
>  
> -static int i915_rstdby_delays(struct seq_file *m, void *unused)
> -{
> -	struct drm_info_node *node = m->private;
> -	struct drm_device *dev = node->minor->dev;
> -	struct drm_i915_private *dev_priv = dev->dev_private;
> -	u16 crstanddelay;
> -	int ret;
> -
> -	ret = mutex_lock_interruptible(&dev->struct_mutex);
> -	if (ret)
> -		return ret;
> -	intel_runtime_pm_get(dev_priv);
> -
> -	crstanddelay = I915_READ16(CRSTANDVID);
> -
> -	intel_runtime_pm_put(dev_priv);
> -	mutex_unlock(&dev->struct_mutex);
> -
> -	seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
> -
> -	return 0;
> -}
> -
>  static int i915_frequency_info(struct seq_file *m, void *unused)
>  {
>  	struct drm_info_node *node = m->private;
> @@ -3875,7 +3852,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
>  	{"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
>  	{"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
>  	{"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
> -	{"i915_rstdby_delays", i915_rstdby_delays, 0},
>  	{"i915_frequency_info", i915_frequency_info, 0},
>  	{"i915_drpc_info", i915_drpc_info, 0},
>  	{"i915_emon_status", i915_emon_status, 0},

Reviewed-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>

-- 
Jesse Barnes, Intel Open Source Technology Center
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