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* [PATCH 1/2] drm/i915/debugfs: Print sink PSR status
@ 2018-03-30 21:15 José Roberto de Souza
  2018-03-30 21:15 ` [PATCH 2/2] drm/i915/psr/cnl: Set y-coordinate as valid in SDP José Roberto de Souza
                   ` (3 more replies)
  0 siblings, 4 replies; 9+ messages in thread
From: José Roberto de Souza @ 2018-03-30 21:15 UTC (permalink / raw)
  To: intel-gfx; +Cc: Rodrigo Vivi

IGT tests could be improved with sink status, knowing for sure that
hardware have activate or exit PSR.

Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 1dba2c451255..c9ac946b62c9 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2603,6 +2603,26 @@ static const char *psr2_live_status(u32 val)
 	return "unknown";
 }
 
+static const char *psr_sink_status(u8 val)
+{
+	static const char * const sink_status[] = {
+		"inactive",
+		"transition to active, capture and display",
+		"active, display from RFB",
+		"active, capture and display on sink device timings",
+		"transition to inactive, capture and display, timing re-sync",
+		"reserved",
+		"reserved",
+		"sink internal error"
+	};
+
+	val &= DP_PSR_SINK_STATE_MASK;
+	if (val < ARRAY_SIZE(sink_status))
+		return sink_status[val];
+
+	return "unknown";
+}
+
 static int i915_edp_psr_status(struct seq_file *m, void *data)
 {
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
@@ -2684,6 +2704,15 @@ static int i915_edp_psr_status(struct seq_file *m, void *data)
 		seq_printf(m, "EDP_PSR2_STATUS: %x [%s]\n",
 			   psr2, psr2_live_status(psr2));
 	}
+
+	if (dev_priv->psr.enabled) {
+		struct drm_dp_aux *aux = &dev_priv->psr.enabled->aux;
+		u8 val;
+
+		if (drm_dp_dpcd_readb(aux, DP_PSR_STATUS, &val) == 1)
+			seq_printf(m, "Sink PSR status: 0x%x [%s]\n", val,
+				   psr_sink_status(val));
+	}
 	mutex_unlock(&dev_priv->psr.lock);
 
 	intel_runtime_pm_put(dev_priv);
-- 
2.16.3

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^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2018-04-02 18:33 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-03-30 21:15 [PATCH 1/2] drm/i915/debugfs: Print sink PSR status José Roberto de Souza
2018-03-30 21:15 ` [PATCH 2/2] drm/i915/psr/cnl: Set y-coordinate as valid in SDP José Roberto de Souza
2018-03-30 23:46   ` Pandiyan, Dhinakaran
2018-03-31  0:17     ` Souza, Jose
2018-04-02 17:42       ` Pandiyan, Dhinakaran
2018-04-02 18:33         ` Rodrigo Vivi
2018-03-30 21:29 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/2] drm/i915/debugfs: Print sink PSR status Patchwork
2018-03-30 21:44 ` ✓ Fi.CI.BAT: success " Patchwork
2018-03-30 22:43 ` ✗ Fi.CI.IGT: failure " Patchwork

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