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Commit 9a851789 authored by Daniel Vetter's avatar Daniel Vetter
Browse files

drm/i915: debugfs for frontbuffer tracking 



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: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
parent 27e78a2a

drivers/gpu/drm/i915/i915_debugfs.c

+16 −0
Original line number Original line Diff line number Diff line
@@ -1581,6 +1581,21 @@ static int i915_drpc_info(struct seq_file *m, void *unused) 
		return ironlake_drpc_info(m);

		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)

static int i915_fbc_status(struct seq_file *m, void *unused)

{

{

	struct drm_info_node *node = m->private;

	struct drm_info_node *node = m->private;
@@ -5021,6 +5036,7 @@ static const struct drm_info_list i915_debugfs_list[] = { 
	{"i915_drpc_info", i915_drpc_info, 0},

	{"i915_drpc_info", i915_drpc_info, 0},

	{"i915_emon_status", i915_emon_status, 0},

	{"i915_emon_status", i915_emon_status, 0},

	{"i915_ring_freq_table", i915_ring_freq_table, 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_fbc_status", i915_fbc_status, 0},

	{"i915_ips_status", i915_ips_status, 0},

	{"i915_ips_status", i915_ips_status, 0},

	{"i915_sr_status", i915_sr_status, 0},

	{"i915_sr_status", i915_sr_status, 0},