2015-06-18 5:30 GMT-03:00 Daniel Vetter <daniel.vetter@xxxxxxxx>:
> Useful to figure out whether stuck bits are due to the frontbuffer
> tracking code as opposed to individual consumers (who have their own
> bitmask tracking).
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_debugfs.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index c49fe2afa223..f3b80627d5b7 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -1581,6 +1581,21 @@ static int i915_drpc_info(struct seq_file *m, void *unused)
> return ironlake_drpc_info(m);
> }
>
> +static int i915_frontbuffer_tracking(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;
> +
> + seq_printf(m, "FB tracking busy bits: 0x%08x\n",
> + dev_priv->fb_tracking.busy_bits);
> +
> + seq_printf(m, "FB tracking flip bits: 0x%08x\n",
> + dev_priv->fb_tracking.flip_bits);
> +
> + return 0;
> +}
> +
> static int i915_fbc_status(struct seq_file *m, void *unused)
> {
> struct drm_info_node *node = m->private;
> @@ -5024,6 +5039,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
> {"i915_drpc_info", i915_drpc_info, 0},
> {"i915_emon_status", i915_emon_status, 0},
> {"i915_ring_freq_table", i915_ring_freq_table, 0},
> + {"i915_frontbuffer_tracking", i915_frontbuffer_tracking, 0},
> {"i915_fbc_status", i915_fbc_status, 0},
> {"i915_ips_status", i915_ips_status, 0},
> {"i915_sr_status", i915_sr_status, 0},
> --
> 2.1.0
>
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--
Paulo Zanoni
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