[PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

Currently MST on a port can get enabled/disabled from the hotplug work
and get disabled from the short pulse work in a racy way. Fix this by
relying on the MST state checking in the hotplug work and just schedule
a hotplug work from the short pulse handler if some problem happened
during the MST interrupt handling.

This removes the explicit MST disabling in case of an AUX failure, but
if AUX fails, then probably the detection will also fail during the
scheduled hotplug work and it's not guaranteed that we'll see
intermittent errors anyway.

While at it also simplify the error checking of the MST interrupt
handler.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
 1 file changed, 4 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 55fda074c0ad..befbcacddaa1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		}
 	}
 
-	return need_retrain;
+	return need_retrain ? -EINVAL : 0;
 }
 
 static bool
@@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	}
 
 	if (intel_dp->is_mst) {
-		switch (intel_dp_check_mst_status(intel_dp)) {
-		case -EINVAL:
-			/*
-			 * If we were in MST mode, and device is not
-			 * there, get out of MST mode
-			 */
-			drm_dbg_kms(&i915->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-
-			return IRQ_NONE;
-		case 1:
-			return IRQ_NONE;
-		default:
-			break;
-		}
-	}
-
-	if (!intel_dp->is_mst) {
-		bool handled;
-
-		handled = intel_dp_short_pulse(intel_dp);
-
-		if (!handled)
+		if (intel_dp_check_mst_status(intel_dp) < 0)
 			return IRQ_NONE;
+	} else if (!intel_dp_short_pulse(intel_dp)) {
+		return IRQ_NONE;
 	}
 
 	return IRQ_HANDLED;
-- 
2.23.1

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[Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

Currently MST on a port can get enabled/disabled from the hotplug work
and get disabled from the short pulse work in a racy way. Fix this by
relying on the MST state checking in the hotplug work and just schedule
a hotplug work from the short pulse handler if some problem happened
during the MST interrupt handling.

This removes the explicit MST disabling in case of an AUX failure, but
if AUX fails, then probably the detection will also fail during the
scheduled hotplug work and it's not guaranteed that we'll see
intermittent errors anyway.

While at it also simplify the error checking of the MST interrupt
handler.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
 1 file changed, 4 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 55fda074c0ad..befbcacddaa1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		}
 	}
 
-	return need_retrain;
+	return need_retrain ? -EINVAL : 0;
 }
 
 static bool
@@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	}
 
 	if (intel_dp->is_mst) {
-		switch (intel_dp_check_mst_status(intel_dp)) {
-		case -EINVAL:
-			/*
-			 * If we were in MST mode, and device is not
-			 * there, get out of MST mode
-			 */
-			drm_dbg_kms(&i915->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-
-			return IRQ_NONE;
-		case 1:
-			return IRQ_NONE;
-		default:
-			break;
-		}
-	}
-
-	if (!intel_dp->is_mst) {
-		bool handled;
-
-		handled = intel_dp_short_pulse(intel_dp);
-
-		if (!handled)
+		if (intel_dp_check_mst_status(intel_dp) < 0)
 			return IRQ_NONE;
+	} else if (!intel_dp_short_pulse(intel_dp)) {
+		return IRQ_NONE;
 	}
 
 	return IRQ_HANDLED;
-- 
2.23.1

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[PATCH 2/3] drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()

[Imre Deak]

Make the locking look symmetric with the unlocking.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 1bdf3cfeeebb..5bc72e800b85 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1183,7 +1183,7 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 	ret = wait_event_timeout(mgr->tx_waitq,
 				 check_txmsg_state(mgr, txmsg),
 				 (4 * HZ));
-	mutex_lock(&mstb->mgr->qlock);
+	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
 			ret = -EIO;
-- 
2.23.1

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[Intel-gfx] [PATCH 2/3] drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()

[Imre Deak]

Make the locking look symmetric with the unlocking.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 1bdf3cfeeebb..5bc72e800b85 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1183,7 +1183,7 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 	ret = wait_event_timeout(mgr->tx_waitq,
 				 check_txmsg_state(mgr, txmsg),
 				 (4 * HZ));
-	mutex_lock(&mstb->mgr->qlock);
+	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
 			ret = -EIO;
-- 
2.23.1

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Re: [Intel-gfx] [PATCH 2/3] drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()

[Souza, Jose]

On Thu, 2020-06-04 at 00:10 +0300, Imre Deak wrote:
> Make the locking look symmetric with the unlocking.
> 

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 1bdf3cfeeebb..5bc72e800b85 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1183,7 +1183,7 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  	ret = wait_event_timeout(mgr->tx_waitq,
>  				 check_txmsg_state(mgr, txmsg),
>  				 (4 * HZ));
> -	mutex_lock(&mstb->mgr->qlock);
> +	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
>  			ret = -EIO;
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Re: [Intel-gfx] [PATCH 2/3] drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()

[Souza, Jose]

On Thu, 2020-06-04 at 00:10 +0300, Imre Deak wrote:
> Make the locking look symmetric with the unlocking.
> 

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 1bdf3cfeeebb..5bc72e800b85 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1183,7 +1183,7 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  	ret = wait_event_timeout(mgr->tx_waitq,
>  				 check_txmsg_state(mgr, txmsg),
>  				 (4 * HZ));
> -	mutex_lock(&mstb->mgr->qlock);
> +	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
>  			ret = -EIO;
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[PATCH 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
incorrectly filter out HPD short pulses with a duration less than ~540
usec, leading to MST probe failures.

According to the DP alt mode specification adapters should forward short
pulses with a duration greater than 250 usec. According to the DP
specificatin DP sources should detect short pulses in the
500 usec -> 2 ms range. Based on this filtering out short pulses with a
duration less than 540 usec is incorrect.

To make such adapters work add support for a driver polling on MST
inerrupt flags, and wire this up in the i915 driver. The sink can clear
an interrupt it raised after 110 ms if the source doesn't respond, so
use a 50 ms poll period to avoid missing an interrupt. Polling of the
MST interrupt flags is explicitly allowed by the DP specification.

This fixes MST probe failures I saw using this adapter and a DELL U2515H
monitor.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c       | 18 +++++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
 include/drm/drm_dp_mst_helper.h             |  1 +
 3 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5bc72e800b85..d1bf340a95a8 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1178,11 +1178,23 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 				    struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
+	unsigned long wait_expires = jiffies + msecs_to_jiffies(4000);
 	int ret;
 
-	ret = wait_event_timeout(mgr->tx_waitq,
-				 check_txmsg_state(mgr, txmsg),
-				 (4 * HZ));
+	for (;;) {
+		ret = wait_event_timeout(mgr->tx_waitq,
+					 check_txmsg_state(mgr, txmsg),
+					 mgr->cbs->update_hpd_irq_state ?
+						msecs_to_jiffies(50) :
+						wait_expires);
+
+		if (ret || !mgr->cbs->update_hpd_irq_state ||
+		    time_after(jiffies, wait_expires))
+			break;
+
+		mgr->cbs->update_hpd_irq_state(mgr);
+	}
+
 	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d18b406f2a7d..1ff7d0096262 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	return NULL;
 }
 
+static void
+intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
+{
+	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	spin_lock_irq(&i915->irq_lock);
+	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
+	spin_unlock_irq(&i915->irq_lock);
+
+	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
+}
+
 static const struct drm_dp_mst_topology_cbs mst_cbs = {
 	.add_connector = intel_dp_add_mst_connector,
+	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
 };
 
 static struct intel_dp_mst_encoder *
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9e1ffcd7cb68..c902f4380200 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-- 
2.23.1

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[Intel-gfx] [PATCH 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
incorrectly filter out HPD short pulses with a duration less than ~540
usec, leading to MST probe failures.

According to the DP alt mode specification adapters should forward short
pulses with a duration greater than 250 usec. According to the DP
specificatin DP sources should detect short pulses in the
500 usec -> 2 ms range. Based on this filtering out short pulses with a
duration less than 540 usec is incorrect.

To make such adapters work add support for a driver polling on MST
inerrupt flags, and wire this up in the i915 driver. The sink can clear
an interrupt it raised after 110 ms if the source doesn't respond, so
use a 50 ms poll period to avoid missing an interrupt. Polling of the
MST interrupt flags is explicitly allowed by the DP specification.

This fixes MST probe failures I saw using this adapter and a DELL U2515H
monitor.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c       | 18 +++++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
 include/drm/drm_dp_mst_helper.h             |  1 +
 3 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5bc72e800b85..d1bf340a95a8 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1178,11 +1178,23 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 				    struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
+	unsigned long wait_expires = jiffies + msecs_to_jiffies(4000);
 	int ret;
 
-	ret = wait_event_timeout(mgr->tx_waitq,
-				 check_txmsg_state(mgr, txmsg),
-				 (4 * HZ));
+	for (;;) {
+		ret = wait_event_timeout(mgr->tx_waitq,
+					 check_txmsg_state(mgr, txmsg),
+					 mgr->cbs->update_hpd_irq_state ?
+						msecs_to_jiffies(50) :
+						wait_expires);
+
+		if (ret || !mgr->cbs->update_hpd_irq_state ||
+		    time_after(jiffies, wait_expires))
+			break;
+
+		mgr->cbs->update_hpd_irq_state(mgr);
+	}
+
 	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d18b406f2a7d..1ff7d0096262 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	return NULL;
 }
 
+static void
+intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
+{
+	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	spin_lock_irq(&i915->irq_lock);
+	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
+	spin_unlock_irq(&i915->irq_lock);
+
+	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
+}
+
 static const struct drm_dp_mst_topology_cbs mst_cbs = {
 	.add_connector = intel_dp_add_mst_connector,
+	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
 };
 
 static struct intel_dp_mst_encoder *
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9e1ffcd7cb68..c902f4380200 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-- 
2.23.1

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[PATCH v2 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
incorrectly filter out HPD short pulses with a duration less than ~540
usec, leading to MST probe failures.

According to the DP alt mode specification adapters should forward short
pulses with a duration greater than 250 usec. According to the DP
specificatin DP sources should detect short pulses in the
500 usec -> 2 ms range. Based on this filtering out short pulses with a
duration less than 540 usec is incorrect.

To make such adapters work add support for a driver polling on MST
inerrupt flags, and wire this up in the i915 driver. The sink can clear
an interrupt it raised after 110 ms if the source doesn't respond, so
use a 50 ms poll period to avoid missing an interrupt. Polling of the
MST interrupt flags is explicitly allowed by the DP specification.

This fixes MST probe failures I saw using this adapter and a DELL U2515H
monitor.

v2:
- Fix the wait event timeout for the no-poll case.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c       | 19 ++++++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
 include/drm/drm_dp_mst_helper.h             |  1 +
 3 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5bc72e800b85..4e987a513df8 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1178,11 +1178,24 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 				    struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
+	unsigned long wait_timeout = msecs_to_jiffies(4000);
+	unsigned long wait_expires = jiffies + wait_timeout;
 	int ret;
 
-	ret = wait_event_timeout(mgr->tx_waitq,
-				 check_txmsg_state(mgr, txmsg),
-				 (4 * HZ));
+	for (;;) {
+		ret = wait_event_timeout(mgr->tx_waitq,
+					 check_txmsg_state(mgr, txmsg),
+					 mgr->cbs->update_hpd_irq_state ?
+						msecs_to_jiffies(50) :
+						wait_timeout);
+
+		if (ret || !mgr->cbs->update_hpd_irq_state ||
+		    time_after(jiffies, wait_expires))
+			break;
+
+		mgr->cbs->update_hpd_irq_state(mgr);
+	}
+
 	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d18b406f2a7d..1ff7d0096262 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	return NULL;
 }
 
+static void
+intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
+{
+	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	spin_lock_irq(&i915->irq_lock);
+	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
+	spin_unlock_irq(&i915->irq_lock);
+
+	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
+}
+
 static const struct drm_dp_mst_topology_cbs mst_cbs = {
 	.add_connector = intel_dp_add_mst_connector,
+	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
 };
 
 static struct intel_dp_mst_encoder *
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9e1ffcd7cb68..c902f4380200 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-- 
2.23.1

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[Intel-gfx] [PATCH v2 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
incorrectly filter out HPD short pulses with a duration less than ~540
usec, leading to MST probe failures.

According to the DP alt mode specification adapters should forward short
pulses with a duration greater than 250 usec. According to the DP
specificatin DP sources should detect short pulses in the
500 usec -> 2 ms range. Based on this filtering out short pulses with a
duration less than 540 usec is incorrect.

To make such adapters work add support for a driver polling on MST
inerrupt flags, and wire this up in the i915 driver. The sink can clear
an interrupt it raised after 110 ms if the source doesn't respond, so
use a 50 ms poll period to avoid missing an interrupt. Polling of the
MST interrupt flags is explicitly allowed by the DP specification.

This fixes MST probe failures I saw using this adapter and a DELL U2515H
monitor.

v2:
- Fix the wait event timeout for the no-poll case.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c       | 19 ++++++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
 include/drm/drm_dp_mst_helper.h             |  1 +
 3 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5bc72e800b85..4e987a513df8 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1178,11 +1178,24 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 				    struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
+	unsigned long wait_timeout = msecs_to_jiffies(4000);
+	unsigned long wait_expires = jiffies + wait_timeout;
 	int ret;
 
-	ret = wait_event_timeout(mgr->tx_waitq,
-				 check_txmsg_state(mgr, txmsg),
-				 (4 * HZ));
+	for (;;) {
+		ret = wait_event_timeout(mgr->tx_waitq,
+					 check_txmsg_state(mgr, txmsg),
+					 mgr->cbs->update_hpd_irq_state ?
+						msecs_to_jiffies(50) :
+						wait_timeout);
+
+		if (ret || !mgr->cbs->update_hpd_irq_state ||
+		    time_after(jiffies, wait_expires))
+			break;
+
+		mgr->cbs->update_hpd_irq_state(mgr);
+	}
+
 	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d18b406f2a7d..1ff7d0096262 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	return NULL;
 }
 
+static void
+intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
+{
+	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	spin_lock_irq(&i915->irq_lock);
+	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
+	spin_unlock_irq(&i915->irq_lock);
+
+	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
+}
+
 static const struct drm_dp_mst_topology_cbs mst_cbs = {
 	.add_connector = intel_dp_add_mst_connector,
+	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
 };
 
 static struct intel_dp_mst_encoder *
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9e1ffcd7cb68..c902f4380200 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-- 
2.23.1

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Re: [Intel-gfx] [PATCH v2 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Ville Syrjälä]

On Thu, Jun 04, 2020 at 01:18:59AM +0300, Imre Deak wrote:
> Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
> incorrectly filter out HPD short pulses with a duration less than ~540
> usec, leading to MST probe failures.
> 
> According to the DP alt mode specification adapters should forward short
> pulses with a duration greater than 250 usec. According to the DP
> specificatin DP sources should detect short pulses in the
> 500 usec -> 2 ms range. 

IIRC it was 250 usec -> 2 ms as well in the DP spec.

500 usec -> 1 ms is the duration of the short hpd
the signalling side should use.

> Based on this filtering out short pulses with a
> duration less than 540 usec is incorrect.
> 
> To make such adapters work add support for a driver polling on MST
> inerrupt flags, and wire this up in the i915 driver. The sink can clear
> an interrupt it raised after 110 ms if the source doesn't respond, so
> use a 50 ms poll period to avoid missing an interrupt. Polling of the
> MST interrupt flags is explicitly allowed by the DP specification.
> 
> This fixes MST probe failures I saw using this adapter and a DELL U2515H
> monitor.
> 
> v2:
> - Fix the wait event timeout for the no-poll case.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c       | 19 ++++++++++++++++---
>  drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
>  include/drm/drm_dp_mst_helper.h             |  1 +
>  3 files changed, 32 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5bc72e800b85..4e987a513df8 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1178,11 +1178,24 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  				    struct drm_dp_sideband_msg_tx *txmsg)
>  {
>  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> +	unsigned long wait_expires = jiffies + wait_timeout;
>  	int ret;
>  
> -	ret = wait_event_timeout(mgr->tx_waitq,
> -				 check_txmsg_state(mgr, txmsg),
> -				 (4 * HZ));
> +	for (;;) {
> +		ret = wait_event_timeout(mgr->tx_waitq,
> +					 check_txmsg_state(mgr, txmsg),
> +					 mgr->cbs->update_hpd_irq_state ?
> +						msecs_to_jiffies(50) :
> +						wait_timeout);
> +
> +		if (ret || !mgr->cbs->update_hpd_irq_state ||
> +		    time_after(jiffies, wait_expires))
> +			break;

First I thought this was changing the behaviour when the callback
isn't provided, but then I noticed the ?: stuff for the timeout.

I think this stuff deserves a comment to explain why we would
ever do such a thing instead of simply waiting like we did before.

> +
> +		mgr->cbs->update_hpd_irq_state(mgr);
> +	}
> +
>  	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index d18b406f2a7d..1ff7d0096262 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
>  	return NULL;
>  }
>  
> +static void
> +intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
> +{
> +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> +	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +
> +	spin_lock_irq(&i915->irq_lock);
> +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> +	spin_unlock_irq(&i915->irq_lock);
> +
> +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);

I might suggest putting this code right next to intel_hpd_irq_handler()
so that people can actually see it when working on the hotplug code.

> +}
> +
>  static const struct drm_dp_mst_topology_cbs mst_cbs = {
>  	.add_connector = intel_dp_add_mst_connector,
> +	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
>  };
>  
>  static struct intel_dp_mst_encoder *
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 9e1ffcd7cb68..c902f4380200 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
>  struct drm_dp_mst_topology_cbs {
>  	/* create a connector for a port */
>  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> +	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);

I guess a bit of docs for this might be nice. Maybe s/update/poll/
might make the intention more clear? Not sure.

>  };
>  
>  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> -- 
> 2.23.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH v2 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Ville Syrjälä]

On Thu, Jun 04, 2020 at 01:18:59AM +0300, Imre Deak wrote:
> Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
> incorrectly filter out HPD short pulses with a duration less than ~540
> usec, leading to MST probe failures.
> 
> According to the DP alt mode specification adapters should forward short
> pulses with a duration greater than 250 usec. According to the DP
> specificatin DP sources should detect short pulses in the
> 500 usec -> 2 ms range. 

IIRC it was 250 usec -> 2 ms as well in the DP spec.

500 usec -> 1 ms is the duration of the short hpd
the signalling side should use.

> Based on this filtering out short pulses with a
> duration less than 540 usec is incorrect.
> 
> To make such adapters work add support for a driver polling on MST
> inerrupt flags, and wire this up in the i915 driver. The sink can clear
> an interrupt it raised after 110 ms if the source doesn't respond, so
> use a 50 ms poll period to avoid missing an interrupt. Polling of the
> MST interrupt flags is explicitly allowed by the DP specification.
> 
> This fixes MST probe failures I saw using this adapter and a DELL U2515H
> monitor.
> 
> v2:
> - Fix the wait event timeout for the no-poll case.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c       | 19 ++++++++++++++++---
>  drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
>  include/drm/drm_dp_mst_helper.h             |  1 +
>  3 files changed, 32 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5bc72e800b85..4e987a513df8 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1178,11 +1178,24 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  				    struct drm_dp_sideband_msg_tx *txmsg)
>  {
>  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> +	unsigned long wait_expires = jiffies + wait_timeout;
>  	int ret;
>  
> -	ret = wait_event_timeout(mgr->tx_waitq,
> -				 check_txmsg_state(mgr, txmsg),
> -				 (4 * HZ));
> +	for (;;) {
> +		ret = wait_event_timeout(mgr->tx_waitq,
> +					 check_txmsg_state(mgr, txmsg),
> +					 mgr->cbs->update_hpd_irq_state ?
> +						msecs_to_jiffies(50) :
> +						wait_timeout);
> +
> +		if (ret || !mgr->cbs->update_hpd_irq_state ||
> +		    time_after(jiffies, wait_expires))
> +			break;

First I thought this was changing the behaviour when the callback
isn't provided, but then I noticed the ?: stuff for the timeout.

I think this stuff deserves a comment to explain why we would
ever do such a thing instead of simply waiting like we did before.

> +
> +		mgr->cbs->update_hpd_irq_state(mgr);
> +	}
> +
>  	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index d18b406f2a7d..1ff7d0096262 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
>  	return NULL;
>  }
>  
> +static void
> +intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
> +{
> +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> +	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +
> +	spin_lock_irq(&i915->irq_lock);
> +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> +	spin_unlock_irq(&i915->irq_lock);
> +
> +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);

I might suggest putting this code right next to intel_hpd_irq_handler()
so that people can actually see it when working on the hotplug code.

> +}
> +
>  static const struct drm_dp_mst_topology_cbs mst_cbs = {
>  	.add_connector = intel_dp_add_mst_connector,
> +	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
>  };
>  
>  static struct intel_dp_mst_encoder *
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 9e1ffcd7cb68..c902f4380200 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
>  struct drm_dp_mst_topology_cbs {
>  	/* create a connector for a port */
>  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> +	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);

I guess a bit of docs for this might be nice. Maybe s/update/poll/
might make the intention more clear? Not sure.

>  };
>  
>  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> -- 
> 2.23.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH v2 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

On Thu, Jun 04, 2020 at 06:12:27PM +0300, Ville Syrjälä wrote:
> On Thu, Jun 04, 2020 at 01:18:59AM +0300, Imre Deak wrote:
> > Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
> > incorrectly filter out HPD short pulses with a duration less than ~540
> > usec, leading to MST probe failures.
> > 
> > According to the DP alt mode specification adapters should forward short
> > pulses with a duration greater than 250 usec. According to the DP
> > specificatin DP sources should detect short pulses in the
> > 500 usec -> 2 ms range. 
> 
> IIRC it was 250 usec -> 2 ms as well in the DP spec.
> 
> 500 usec -> 1 ms is the duration of the short hpd
> the signalling side should use.

Ah, correct (and this is what makes actually sense). For reference it's
described under "5.1.4 Source Device Behavior upon HPD Pulse Detection"

> > Based on this filtering out short pulses with a
> > duration less than 540 usec is incorrect.
> > 
> > To make such adapters work add support for a driver polling on MST
> > inerrupt flags, and wire this up in the i915 driver. The sink can clear
> > an interrupt it raised after 110 ms if the source doesn't respond, so
> > use a 50 ms poll period to avoid missing an interrupt. Polling of the
> > MST interrupt flags is explicitly allowed by the DP specification.
> > 
> > This fixes MST probe failures I saw using this adapter and a DELL U2515H
> > monitor.
> > 
> > v2:
> > - Fix the wait event timeout for the no-poll case.
> > 
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/drm_dp_mst_topology.c       | 19 ++++++++++++++++---
> >  drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
> >  include/drm/drm_dp_mst_helper.h             |  1 +
> >  3 files changed, 32 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> > index 5bc72e800b85..4e987a513df8 100644
> > --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> > @@ -1178,11 +1178,24 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
> >  				    struct drm_dp_sideband_msg_tx *txmsg)
> >  {
> >  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> > +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> > +	unsigned long wait_expires = jiffies + wait_timeout;
> >  	int ret;
> >  
> > -	ret = wait_event_timeout(mgr->tx_waitq,
> > -				 check_txmsg_state(mgr, txmsg),
> > -				 (4 * HZ));
> > +	for (;;) {
> > +		ret = wait_event_timeout(mgr->tx_waitq,
> > +					 check_txmsg_state(mgr, txmsg),
> > +					 mgr->cbs->update_hpd_irq_state ?
> > +						msecs_to_jiffies(50) :
> > +						wait_timeout);
> > +
> > +		if (ret || !mgr->cbs->update_hpd_irq_state ||
> > +		    time_after(jiffies, wait_expires))
> > +			break;
> 
> First I thought this was changing the behaviour when the callback
> isn't provided, but then I noticed the ?: stuff for the timeout.
>
> I think this stuff deserves a comment to explain why we would
> ever do such a thing instead of simply waiting like we did before.

Ok, will add a compact form of the commit log explanation.

> 
> > +
> > +		mgr->cbs->update_hpd_irq_state(mgr);
> > +	}
> > +
> >  	mutex_lock(&mgr->qlock);
> >  	if (ret > 0) {
> >  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > index d18b406f2a7d..1ff7d0096262 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > @@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> >  	return NULL;
> >  }
> >  
> > +static void
> > +intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
> > +{
> > +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> > +	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > +
> > +	spin_lock_irq(&i915->irq_lock);
> > +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> > +	spin_unlock_irq(&i915->irq_lock);
> > +
> > +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> 
> I might suggest putting this code right next to intel_hpd_irq_handler()
> so that people can actually see it when working on the hotplug code.

Ok.

> 
> > +}
> > +
> >  static const struct drm_dp_mst_topology_cbs mst_cbs = {
> >  	.add_connector = intel_dp_add_mst_connector,
> > +	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
> >  };
> >  
> >  static struct intel_dp_mst_encoder *
> > diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> > index 9e1ffcd7cb68..c902f4380200 100644
> > --- a/include/drm/drm_dp_mst_helper.h
> > +++ b/include/drm/drm_dp_mst_helper.h
> > @@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
> >  struct drm_dp_mst_topology_cbs {
> >  	/* create a connector for a port */
> >  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> > +	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);
> 
> I guess a bit of docs for this might be nice. Maybe s/update/poll/
> might make the intention more clear? Not sure.

Ok.

> 
> >  };
> >  
> >  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> > -- 
> > 2.23.1
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Ville Syrjälä
> Intel
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Re: [Intel-gfx] [PATCH v2 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

On Thu, Jun 04, 2020 at 06:12:27PM +0300, Ville Syrjälä wrote:
> On Thu, Jun 04, 2020 at 01:18:59AM +0300, Imre Deak wrote:
> > Some TypeC -> native DP adapters, at least the Club CAC-1557 adapter,
> > incorrectly filter out HPD short pulses with a duration less than ~540
> > usec, leading to MST probe failures.
> > 
> > According to the DP alt mode specification adapters should forward short
> > pulses with a duration greater than 250 usec. According to the DP
> > specificatin DP sources should detect short pulses in the
> > 500 usec -> 2 ms range. 
> 
> IIRC it was 250 usec -> 2 ms as well in the DP spec.
> 
> 500 usec -> 1 ms is the duration of the short hpd
> the signalling side should use.

Ah, correct (and this is what makes actually sense). For reference it's
described under "5.1.4 Source Device Behavior upon HPD Pulse Detection"

> > Based on this filtering out short pulses with a
> > duration less than 540 usec is incorrect.
> > 
> > To make such adapters work add support for a driver polling on MST
> > inerrupt flags, and wire this up in the i915 driver. The sink can clear
> > an interrupt it raised after 110 ms if the source doesn't respond, so
> > use a 50 ms poll period to avoid missing an interrupt. Polling of the
> > MST interrupt flags is explicitly allowed by the DP specification.
> > 
> > This fixes MST probe failures I saw using this adapter and a DELL U2515H
> > monitor.
> > 
> > v2:
> > - Fix the wait event timeout for the no-poll case.
> > 
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/drm_dp_mst_topology.c       | 19 ++++++++++++++++---
> >  drivers/gpu/drm/i915/display/intel_dp_mst.c | 15 +++++++++++++++
> >  include/drm/drm_dp_mst_helper.h             |  1 +
> >  3 files changed, 32 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> > index 5bc72e800b85..4e987a513df8 100644
> > --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> > @@ -1178,11 +1178,24 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
> >  				    struct drm_dp_sideband_msg_tx *txmsg)
> >  {
> >  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> > +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> > +	unsigned long wait_expires = jiffies + wait_timeout;
> >  	int ret;
> >  
> > -	ret = wait_event_timeout(mgr->tx_waitq,
> > -				 check_txmsg_state(mgr, txmsg),
> > -				 (4 * HZ));
> > +	for (;;) {
> > +		ret = wait_event_timeout(mgr->tx_waitq,
> > +					 check_txmsg_state(mgr, txmsg),
> > +					 mgr->cbs->update_hpd_irq_state ?
> > +						msecs_to_jiffies(50) :
> > +						wait_timeout);
> > +
> > +		if (ret || !mgr->cbs->update_hpd_irq_state ||
> > +		    time_after(jiffies, wait_expires))
> > +			break;
> 
> First I thought this was changing the behaviour when the callback
> isn't provided, but then I noticed the ?: stuff for the timeout.
>
> I think this stuff deserves a comment to explain why we would
> ever do such a thing instead of simply waiting like we did before.

Ok, will add a compact form of the commit log explanation.

> 
> > +
> > +		mgr->cbs->update_hpd_irq_state(mgr);
> > +	}
> > +
> >  	mutex_lock(&mgr->qlock);
> >  	if (ret > 0) {
> >  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > index d18b406f2a7d..1ff7d0096262 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > @@ -765,8 +765,23 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> >  	return NULL;
> >  }
> >  
> > +static void
> > +intel_dp_mst_update_hpd_irq_state(struct drm_dp_mst_topology_mgr *mgr)
> > +{
> > +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> > +	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > +
> > +	spin_lock_irq(&i915->irq_lock);
> > +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> > +	spin_unlock_irq(&i915->irq_lock);
> > +
> > +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> 
> I might suggest putting this code right next to intel_hpd_irq_handler()
> so that people can actually see it when working on the hotplug code.

Ok.

> 
> > +}
> > +
> >  static const struct drm_dp_mst_topology_cbs mst_cbs = {
> >  	.add_connector = intel_dp_add_mst_connector,
> > +	.update_hpd_irq_state = intel_dp_mst_update_hpd_irq_state,
> >  };
> >  
> >  static struct intel_dp_mst_encoder *
> > diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> > index 9e1ffcd7cb68..c902f4380200 100644
> > --- a/include/drm/drm_dp_mst_helper.h
> > +++ b/include/drm/drm_dp_mst_helper.h
> > @@ -475,6 +475,7 @@ struct drm_dp_mst_topology_mgr;
> >  struct drm_dp_mst_topology_cbs {
> >  	/* create a connector for a port */
> >  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> > +	void (*update_hpd_irq_state)(struct drm_dp_mst_topology_mgr *mgr);
> 
> I guess a bit of docs for this might be nice. Maybe s/update/poll/
> might make the intention more clear? Not sure.

Ok.

> 
> >  };
> >  
> >  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> > -- 
> > 2.23.1
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Ville Syrjälä
> Intel
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[PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
incorrectly filter out HPD short pulses with a duration less than
~540 usec, leading to MST probe failures.

According to the DP Standard 2.0 section 5.1.4:
- DP sinks should generate short pulses in the 500 usec -> 1 msec range
- DP sources should detect short pulses in the 250 usec -> 2 msec range

According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
should detect and forward short pulses according to how sources should
detect them as specified in the DP Standard (250 usec -> 2 msec).

Based on the above filtering out short pulses with a duration less than
540 usec is incorrect.

To make such adapters work add support for a driver polling on MST
inerrupt flags, and wire this up in the i915 driver. The sink can clear
an interrupt it raised after 110 msec if the source doesn't respond, so
use a 50 msec poll period to avoid missing an interrupt. Polling of the
MST interrupt flags is explicitly allowed by the DP Standard.

This fixes MST probe failures I saw using this adapter and a DELL U2515H
monitor.

v2:
- Fix the wait event timeout for the no-poll case.
v3 (Ville):
- Fix the short pulse duration limits in the commit log prescribed by the
  DP Standard.
- Add code comment explaining why/how polling is used.
- Factor out a helper to schedule the port's hpd irq handler and move it
  to the rest of hotplug handlers.
- Document the new MST callback.
- s/update_hpd_irq_state/poll_hpd_irq/

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
 drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
 drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
 drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
 include/drm/drm_dp_mst_helper.h              |  9 ++++++
 5 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5bc72e800b85..2a309fb2c4cc 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 				    struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
+	unsigned long wait_timeout = msecs_to_jiffies(4000);
+	unsigned long wait_expires = jiffies + wait_timeout;
 	int ret;
 
-	ret = wait_event_timeout(mgr->tx_waitq,
-				 check_txmsg_state(mgr, txmsg),
-				 (4 * HZ));
+	for (;;) {
+		/*
+		 * If the driver provides a way for this, change to
+		 * poll-waiting for the MST reply interrupt if we didn't receive
+		 * it for 50 msec. This would cater for cases where the HPD
+		 * pulse signal got lost somewhere, even though the sink raised
+		 * the corresponding MST interrupt correctly. One example is the
+		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
+		 * filters out short pulses with a duration less than ~540 usec.
+		 *
+		 * The poll period is 50 msec to avoid missing an interrupt
+		 * after the sink has cleared it (after a 110msec timeout
+		 * since it raised the interrupt).
+		 */
+		ret = wait_event_timeout(mgr->tx_waitq,
+					 check_txmsg_state(mgr, txmsg),
+					 mgr->cbs->poll_hpd_irq ?
+						msecs_to_jiffies(50) :
+						wait_timeout);
+
+		if (ret || !mgr->cbs->poll_hpd_irq ||
+		    time_after(jiffies, wait_expires))
+			break;
+
+		mgr->cbs->poll_hpd_irq(mgr);
+	}
+
 	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d18b406f2a7d..9be52643205d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -33,6 +33,7 @@
 #include "intel_connector.h"
 #include "intel_ddi.h"
 #include "intel_display_types.h"
+#include "intel_hotplug.h"
 #include "intel_dp.h"
 #include "intel_dp_mst.h"
 #include "intel_dpio_phy.h"
@@ -765,8 +766,17 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	return NULL;
 }
 
+static void
+intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
+{
+	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
+
+	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
+}
+
 static const struct drm_dp_mst_topology_cbs mst_cbs = {
 	.add_connector = intel_dp_add_mst_connector,
+	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
 };
 
 static struct intel_dp_mst_encoder *
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 4f6f560e093e..664f88354101 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct *work)
 	}
 }
 
+/**
+ * intel_hpd_trigger_irq - trigger an hpd irq event for a port
+ * @dig_port: digital port
+ *
+ * Trigger an HPD interrupt event for the given port, emulating a short pulse
+ * generated by the sink, and schedule the dig port work to handle it.
+ */
+void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	spin_lock_irq(&i915->irq_lock);
+	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
+	spin_unlock_irq(&i915->irq_lock);
+
+	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
+}
+
 /*
  * Handle hotplug events outside the interrupt handler proper.
  */
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h
index 777b0743257e..a704d7c94d16 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.h
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
@@ -10,6 +10,7 @@
 
 struct drm_i915_private;
 struct intel_connector;
+struct intel_digital_port;
 struct intel_encoder;
 enum port;
 
@@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
 					       struct intel_connector *connector);
 void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
 			   u32 pin_mask, u32 long_mask);
+void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
 void intel_hpd_init(struct drm_i915_private *dev_priv);
 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9e1ffcd7cb68..b230ff6f7081 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	/*
+	 * Checks for any pending MST interrupts, passing them to MST core for
+	 * processing, the same way an HPD IRQ pulse handler would do this.
+	 * If provided MST core calls this callback from a poll-waiting loop
+	 * when waiting for MST down message replies. The driver is expected
+	 * to guard against a race between this callback and the driver's HPD
+	 * IRQ pulse handler.
+	 */
+	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-- 
2.23.1

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[Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
incorrectly filter out HPD short pulses with a duration less than
~540 usec, leading to MST probe failures.

According to the DP Standard 2.0 section 5.1.4:
- DP sinks should generate short pulses in the 500 usec -> 1 msec range
- DP sources should detect short pulses in the 250 usec -> 2 msec range

According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
should detect and forward short pulses according to how sources should
detect them as specified in the DP Standard (250 usec -> 2 msec).

Based on the above filtering out short pulses with a duration less than
540 usec is incorrect.

To make such adapters work add support for a driver polling on MST
inerrupt flags, and wire this up in the i915 driver. The sink can clear
an interrupt it raised after 110 msec if the source doesn't respond, so
use a 50 msec poll period to avoid missing an interrupt. Polling of the
MST interrupt flags is explicitly allowed by the DP Standard.

This fixes MST probe failures I saw using this adapter and a DELL U2515H
monitor.

v2:
- Fix the wait event timeout for the no-poll case.
v3 (Ville):
- Fix the short pulse duration limits in the commit log prescribed by the
  DP Standard.
- Add code comment explaining why/how polling is used.
- Factor out a helper to schedule the port's hpd irq handler and move it
  to the rest of hotplug handlers.
- Document the new MST callback.
- s/update_hpd_irq_state/poll_hpd_irq/

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
 drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
 drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
 drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
 include/drm/drm_dp_mst_helper.h              |  9 ++++++
 5 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 5bc72e800b85..2a309fb2c4cc 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
 				    struct drm_dp_sideband_msg_tx *txmsg)
 {
 	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
+	unsigned long wait_timeout = msecs_to_jiffies(4000);
+	unsigned long wait_expires = jiffies + wait_timeout;
 	int ret;
 
-	ret = wait_event_timeout(mgr->tx_waitq,
-				 check_txmsg_state(mgr, txmsg),
-				 (4 * HZ));
+	for (;;) {
+		/*
+		 * If the driver provides a way for this, change to
+		 * poll-waiting for the MST reply interrupt if we didn't receive
+		 * it for 50 msec. This would cater for cases where the HPD
+		 * pulse signal got lost somewhere, even though the sink raised
+		 * the corresponding MST interrupt correctly. One example is the
+		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
+		 * filters out short pulses with a duration less than ~540 usec.
+		 *
+		 * The poll period is 50 msec to avoid missing an interrupt
+		 * after the sink has cleared it (after a 110msec timeout
+		 * since it raised the interrupt).
+		 */
+		ret = wait_event_timeout(mgr->tx_waitq,
+					 check_txmsg_state(mgr, txmsg),
+					 mgr->cbs->poll_hpd_irq ?
+						msecs_to_jiffies(50) :
+						wait_timeout);
+
+		if (ret || !mgr->cbs->poll_hpd_irq ||
+		    time_after(jiffies, wait_expires))
+			break;
+
+		mgr->cbs->poll_hpd_irq(mgr);
+	}
+
 	mutex_lock(&mgr->qlock);
 	if (ret > 0) {
 		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d18b406f2a7d..9be52643205d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -33,6 +33,7 @@
 #include "intel_connector.h"
 #include "intel_ddi.h"
 #include "intel_display_types.h"
+#include "intel_hotplug.h"
 #include "intel_dp.h"
 #include "intel_dp_mst.h"
 #include "intel_dpio_phy.h"
@@ -765,8 +766,17 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	return NULL;
 }
 
+static void
+intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
+{
+	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
+
+	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
+}
+
 static const struct drm_dp_mst_topology_cbs mst_cbs = {
 	.add_connector = intel_dp_add_mst_connector,
+	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
 };
 
 static struct intel_dp_mst_encoder *
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 4f6f560e093e..664f88354101 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct *work)
 	}
 }
 
+/**
+ * intel_hpd_trigger_irq - trigger an hpd irq event for a port
+ * @dig_port: digital port
+ *
+ * Trigger an HPD interrupt event for the given port, emulating a short pulse
+ * generated by the sink, and schedule the dig port work to handle it.
+ */
+void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	spin_lock_irq(&i915->irq_lock);
+	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
+	spin_unlock_irq(&i915->irq_lock);
+
+	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
+}
+
 /*
  * Handle hotplug events outside the interrupt handler proper.
  */
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h
index 777b0743257e..a704d7c94d16 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.h
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
@@ -10,6 +10,7 @@
 
 struct drm_i915_private;
 struct intel_connector;
+struct intel_digital_port;
 struct intel_encoder;
 enum port;
 
@@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
 					       struct intel_connector *connector);
 void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
 			   u32 pin_mask, u32 long_mask);
+void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
 void intel_hpd_init(struct drm_i915_private *dev_priv);
 void intel_hpd_init_work(struct drm_i915_private *dev_priv);
 void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 9e1ffcd7cb68..b230ff6f7081 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
 struct drm_dp_mst_topology_cbs {
 	/* create a connector for a port */
 	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
+	/*
+	 * Checks for any pending MST interrupts, passing them to MST core for
+	 * processing, the same way an HPD IRQ pulse handler would do this.
+	 * If provided MST core calls this callback from a poll-waiting loop
+	 * when waiting for MST down message replies. The driver is expected
+	 * to guard against a race between this callback and the driver's HPD
+	 * IRQ pulse handler.
+	 */
+	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
 };
 
 #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
-- 
2.23.1

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Re: [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Ville Syrjälä]

On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> incorrectly filter out HPD short pulses with a duration less than
> ~540 usec, leading to MST probe failures.
> 
> According to the DP Standard 2.0 section 5.1.4:
> - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> - DP sources should detect short pulses in the 250 usec -> 2 msec range
> 
> According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> should detect and forward short pulses according to how sources should
> detect them as specified in the DP Standard (250 usec -> 2 msec).
> 
> Based on the above filtering out short pulses with a duration less than
> 540 usec is incorrect.
> 
> To make such adapters work add support for a driver polling on MST
> inerrupt flags, and wire this up in the i915 driver. The sink can clear
> an interrupt it raised after 110 msec if the source doesn't respond, so
> use a 50 msec poll period to avoid missing an interrupt. Polling of the
> MST interrupt flags is explicitly allowed by the DP Standard.
> 
> This fixes MST probe failures I saw using this adapter and a DELL U2515H
> monitor.
> 
> v2:
> - Fix the wait event timeout for the no-poll case.
> v3 (Ville):
> - Fix the short pulse duration limits in the commit log prescribed by the
>   DP Standard.
> - Add code comment explaining why/how polling is used.
> - Factor out a helper to schedule the port's hpd irq handler and move it
>   to the rest of hotplug handlers.
> - Document the new MST callback.
> - s/update_hpd_irq_state/poll_hpd_irq/
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>

lgtm
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
>  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
>  include/drm/drm_dp_mst_helper.h              |  9 ++++++
>  5 files changed, 68 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5bc72e800b85..2a309fb2c4cc 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  				    struct drm_dp_sideband_msg_tx *txmsg)
>  {
>  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> +	unsigned long wait_expires = jiffies + wait_timeout;
>  	int ret;
>  
> -	ret = wait_event_timeout(mgr->tx_waitq,
> -				 check_txmsg_state(mgr, txmsg),
> -				 (4 * HZ));
> +	for (;;) {
> +		/*
> +		 * If the driver provides a way for this, change to
> +		 * poll-waiting for the MST reply interrupt if we didn't receive
> +		 * it for 50 msec. This would cater for cases where the HPD
> +		 * pulse signal got lost somewhere, even though the sink raised
> +		 * the corresponding MST interrupt correctly. One example is the
> +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> +		 * filters out short pulses with a duration less than ~540 usec.
> +		 *
> +		 * The poll period is 50 msec to avoid missing an interrupt
> +		 * after the sink has cleared it (after a 110msec timeout
> +		 * since it raised the interrupt).
> +		 */
> +		ret = wait_event_timeout(mgr->tx_waitq,
> +					 check_txmsg_state(mgr, txmsg),
> +					 mgr->cbs->poll_hpd_irq ?
> +						msecs_to_jiffies(50) :
> +						wait_timeout);
> +
> +		if (ret || !mgr->cbs->poll_hpd_irq ||
> +		    time_after(jiffies, wait_expires))
> +			break;
> +
> +		mgr->cbs->poll_hpd_irq(mgr);
> +	}
> +
>  	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index d18b406f2a7d..9be52643205d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -33,6 +33,7 @@
>  #include "intel_connector.h"
>  #include "intel_ddi.h"
>  #include "intel_display_types.h"
> +#include "intel_hotplug.h"
>  #include "intel_dp.h"
>  #include "intel_dp_mst.h"
>  #include "intel_dpio_phy.h"
> @@ -765,8 +766,17 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
>  	return NULL;
>  }
>  
> +static void
> +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> +{
> +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> +
> +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> +}
> +
>  static const struct drm_dp_mst_topology_cbs mst_cbs = {
>  	.add_connector = intel_dp_add_mst_connector,
> +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
>  };
>  
>  static struct intel_dp_mst_encoder *
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
> index 4f6f560e093e..664f88354101 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct *work)
>  	}
>  }
>  
> +/**
> + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> + * @dig_port: digital port
> + *
> + * Trigger an HPD interrupt event for the given port, emulating a short pulse
> + * generated by the sink, and schedule the dig port work to handle it.
> + */
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +
> +	spin_lock_irq(&i915->irq_lock);
> +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> +	spin_unlock_irq(&i915->irq_lock);
> +
> +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> +}
> +
>  /*
>   * Handle hotplug events outside the interrupt handler proper.
>   */
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h
> index 777b0743257e..a704d7c94d16 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> @@ -10,6 +10,7 @@
>  
>  struct drm_i915_private;
>  struct intel_connector;
> +struct intel_digital_port;
>  struct intel_encoder;
>  enum port;
>  
> @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
>  					       struct intel_connector *connector);
>  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
>  			   u32 pin_mask, u32 long_mask);
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
>  void intel_hpd_init(struct drm_i915_private *dev_priv);
>  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
>  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 9e1ffcd7cb68..b230ff6f7081 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
>  struct drm_dp_mst_topology_cbs {
>  	/* create a connector for a port */
>  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> +	/*
> +	 * Checks for any pending MST interrupts, passing them to MST core for
> +	 * processing, the same way an HPD IRQ pulse handler would do this.
> +	 * If provided MST core calls this callback from a poll-waiting loop
> +	 * when waiting for MST down message replies. The driver is expected
> +	 * to guard against a race between this callback and the driver's HPD
> +	 * IRQ pulse handler.
> +	 */
> +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
>  };
>  
>  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> -- 
> 2.23.1

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Ville Syrjälä]

On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> incorrectly filter out HPD short pulses with a duration less than
> ~540 usec, leading to MST probe failures.
> 
> According to the DP Standard 2.0 section 5.1.4:
> - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> - DP sources should detect short pulses in the 250 usec -> 2 msec range
> 
> According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> should detect and forward short pulses according to how sources should
> detect them as specified in the DP Standard (250 usec -> 2 msec).
> 
> Based on the above filtering out short pulses with a duration less than
> 540 usec is incorrect.
> 
> To make such adapters work add support for a driver polling on MST
> inerrupt flags, and wire this up in the i915 driver. The sink can clear
> an interrupt it raised after 110 msec if the source doesn't respond, so
> use a 50 msec poll period to avoid missing an interrupt. Polling of the
> MST interrupt flags is explicitly allowed by the DP Standard.
> 
> This fixes MST probe failures I saw using this adapter and a DELL U2515H
> monitor.
> 
> v2:
> - Fix the wait event timeout for the no-poll case.
> v3 (Ville):
> - Fix the short pulse duration limits in the commit log prescribed by the
>   DP Standard.
> - Add code comment explaining why/how polling is used.
> - Factor out a helper to schedule the port's hpd irq handler and move it
>   to the rest of hotplug handlers.
> - Document the new MST callback.
> - s/update_hpd_irq_state/poll_hpd_irq/
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>

lgtm
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
>  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
>  include/drm/drm_dp_mst_helper.h              |  9 ++++++
>  5 files changed, 68 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5bc72e800b85..2a309fb2c4cc 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  				    struct drm_dp_sideband_msg_tx *txmsg)
>  {
>  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> +	unsigned long wait_expires = jiffies + wait_timeout;
>  	int ret;
>  
> -	ret = wait_event_timeout(mgr->tx_waitq,
> -				 check_txmsg_state(mgr, txmsg),
> -				 (4 * HZ));
> +	for (;;) {
> +		/*
> +		 * If the driver provides a way for this, change to
> +		 * poll-waiting for the MST reply interrupt if we didn't receive
> +		 * it for 50 msec. This would cater for cases where the HPD
> +		 * pulse signal got lost somewhere, even though the sink raised
> +		 * the corresponding MST interrupt correctly. One example is the
> +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> +		 * filters out short pulses with a duration less than ~540 usec.
> +		 *
> +		 * The poll period is 50 msec to avoid missing an interrupt
> +		 * after the sink has cleared it (after a 110msec timeout
> +		 * since it raised the interrupt).
> +		 */
> +		ret = wait_event_timeout(mgr->tx_waitq,
> +					 check_txmsg_state(mgr, txmsg),
> +					 mgr->cbs->poll_hpd_irq ?
> +						msecs_to_jiffies(50) :
> +						wait_timeout);
> +
> +		if (ret || !mgr->cbs->poll_hpd_irq ||
> +		    time_after(jiffies, wait_expires))
> +			break;
> +
> +		mgr->cbs->poll_hpd_irq(mgr);
> +	}
> +
>  	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index d18b406f2a7d..9be52643205d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -33,6 +33,7 @@
>  #include "intel_connector.h"
>  #include "intel_ddi.h"
>  #include "intel_display_types.h"
> +#include "intel_hotplug.h"
>  #include "intel_dp.h"
>  #include "intel_dp_mst.h"
>  #include "intel_dpio_phy.h"
> @@ -765,8 +766,17 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
>  	return NULL;
>  }
>  
> +static void
> +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> +{
> +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> +
> +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> +}
> +
>  static const struct drm_dp_mst_topology_cbs mst_cbs = {
>  	.add_connector = intel_dp_add_mst_connector,
> +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
>  };
>  
>  static struct intel_dp_mst_encoder *
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
> index 4f6f560e093e..664f88354101 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct *work)
>  	}
>  }
>  
> +/**
> + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> + * @dig_port: digital port
> + *
> + * Trigger an HPD interrupt event for the given port, emulating a short pulse
> + * generated by the sink, and schedule the dig port work to handle it.
> + */
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +
> +	spin_lock_irq(&i915->irq_lock);
> +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> +	spin_unlock_irq(&i915->irq_lock);
> +
> +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> +}
> +
>  /*
>   * Handle hotplug events outside the interrupt handler proper.
>   */
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h
> index 777b0743257e..a704d7c94d16 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> @@ -10,6 +10,7 @@
>  
>  struct drm_i915_private;
>  struct intel_connector;
> +struct intel_digital_port;
>  struct intel_encoder;
>  enum port;
>  
> @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
>  					       struct intel_connector *connector);
>  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
>  			   u32 pin_mask, u32 long_mask);
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
>  void intel_hpd_init(struct drm_i915_private *dev_priv);
>  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
>  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 9e1ffcd7cb68..b230ff6f7081 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
>  struct drm_dp_mst_topology_cbs {
>  	/* create a connector for a port */
>  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> +	/*
> +	 * Checks for any pending MST interrupts, passing them to MST core for
> +	 * processing, the same way an HPD IRQ pulse handler would do this.
> +	 * If provided MST core calls this callback from a poll-waiting loop
> +	 * when waiting for MST down message replies. The driver is expected
> +	 * to guard against a race between this callback and the driver's HPD
> +	 * IRQ pulse handler.
> +	 */
> +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
>  };
>  
>  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> -- 
> 2.23.1

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Hi Dave, Lyude,

are you ok to merge this patchset via the drm-intel-next-queued tree?

--Imre

On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> incorrectly filter out HPD short pulses with a duration less than
> ~540 usec, leading to MST probe failures.
> 
> According to the DP Standard 2.0 section 5.1.4:
> - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> - DP sources should detect short pulses in the 250 usec -> 2 msec range
> 
> According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> should detect and forward short pulses according to how sources should
> detect them as specified in the DP Standard (250 usec -> 2 msec).
> 
> Based on the above filtering out short pulses with a duration less than
> 540 usec is incorrect.
> 
> To make such adapters work add support for a driver polling on MST
> inerrupt flags, and wire this up in the i915 driver. The sink can clear
> an interrupt it raised after 110 msec if the source doesn't respond, so
> use a 50 msec poll period to avoid missing an interrupt. Polling of the
> MST interrupt flags is explicitly allowed by the DP Standard.
> 
> This fixes MST probe failures I saw using this adapter and a DELL U2515H
> monitor.
> 
> v2:
> - Fix the wait event timeout for the no-poll case.
> v3 (Ville):
> - Fix the short pulse duration limits in the commit log prescribed by the
>   DP Standard.
> - Add code comment explaining why/how polling is used.
> - Factor out a helper to schedule the port's hpd irq handler and move it
>   to the rest of hotplug handlers.
> - Document the new MST callback.
> - s/update_hpd_irq_state/poll_hpd_irq/
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
>  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
>  include/drm/drm_dp_mst_helper.h              |  9 ++++++
>  5 files changed, 68 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5bc72e800b85..2a309fb2c4cc 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  				    struct drm_dp_sideband_msg_tx *txmsg)
>  {
>  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> +	unsigned long wait_expires = jiffies + wait_timeout;
>  	int ret;
>  
> -	ret = wait_event_timeout(mgr->tx_waitq,
> -				 check_txmsg_state(mgr, txmsg),
> -				 (4 * HZ));
> +	for (;;) {
> +		/*
> +		 * If the driver provides a way for this, change to
> +		 * poll-waiting for the MST reply interrupt if we didn't receive
> +		 * it for 50 msec. This would cater for cases where the HPD
> +		 * pulse signal got lost somewhere, even though the sink raised
> +		 * the corresponding MST interrupt correctly. One example is the
> +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> +		 * filters out short pulses with a duration less than ~540 usec.
> +		 *
> +		 * The poll period is 50 msec to avoid missing an interrupt
> +		 * after the sink has cleared it (after a 110msec timeout
> +		 * since it raised the interrupt).
> +		 */
> +		ret = wait_event_timeout(mgr->tx_waitq,
> +					 check_txmsg_state(mgr, txmsg),
> +					 mgr->cbs->poll_hpd_irq ?
> +						msecs_to_jiffies(50) :
> +						wait_timeout);
> +
> +		if (ret || !mgr->cbs->poll_hpd_irq ||
> +		    time_after(jiffies, wait_expires))
> +			break;
> +
> +		mgr->cbs->poll_hpd_irq(mgr);
> +	}
> +
>  	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index d18b406f2a7d..9be52643205d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -33,6 +33,7 @@
>  #include "intel_connector.h"
>  #include "intel_ddi.h"
>  #include "intel_display_types.h"
> +#include "intel_hotplug.h"
>  #include "intel_dp.h"
>  #include "intel_dp_mst.h"
>  #include "intel_dpio_phy.h"
> @@ -765,8 +766,17 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
>  	return NULL;
>  }
>  
> +static void
> +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> +{
> +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> +
> +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> +}
> +
>  static const struct drm_dp_mst_topology_cbs mst_cbs = {
>  	.add_connector = intel_dp_add_mst_connector,
> +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
>  };
>  
>  static struct intel_dp_mst_encoder *
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
> index 4f6f560e093e..664f88354101 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct *work)
>  	}
>  }
>  
> +/**
> + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> + * @dig_port: digital port
> + *
> + * Trigger an HPD interrupt event for the given port, emulating a short pulse
> + * generated by the sink, and schedule the dig port work to handle it.
> + */
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +
> +	spin_lock_irq(&i915->irq_lock);
> +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> +	spin_unlock_irq(&i915->irq_lock);
> +
> +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> +}
> +
>  /*
>   * Handle hotplug events outside the interrupt handler proper.
>   */
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h
> index 777b0743257e..a704d7c94d16 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> @@ -10,6 +10,7 @@
>  
>  struct drm_i915_private;
>  struct intel_connector;
> +struct intel_digital_port;
>  struct intel_encoder;
>  enum port;
>  
> @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
>  					       struct intel_connector *connector);
>  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
>  			   u32 pin_mask, u32 long_mask);
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
>  void intel_hpd_init(struct drm_i915_private *dev_priv);
>  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
>  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 9e1ffcd7cb68..b230ff6f7081 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
>  struct drm_dp_mst_topology_cbs {
>  	/* create a connector for a port */
>  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> +	/*
> +	 * Checks for any pending MST interrupts, passing them to MST core for
> +	 * processing, the same way an HPD IRQ pulse handler would do this.
> +	 * If provided MST core calls this callback from a poll-waiting loop
> +	 * when waiting for MST down message replies. The driver is expected
> +	 * to guard against a race between this callback and the driver's HPD
> +	 * IRQ pulse handler.
> +	 */
> +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
>  };
>  
>  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> -- 
> 2.23.1
> 
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> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

Hi Dave, Lyude,

are you ok to merge this patchset via the drm-intel-next-queued tree?

--Imre

On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> incorrectly filter out HPD short pulses with a duration less than
> ~540 usec, leading to MST probe failures.
> 
> According to the DP Standard 2.0 section 5.1.4:
> - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> - DP sources should detect short pulses in the 250 usec -> 2 msec range
> 
> According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> should detect and forward short pulses according to how sources should
> detect them as specified in the DP Standard (250 usec -> 2 msec).
> 
> Based on the above filtering out short pulses with a duration less than
> 540 usec is incorrect.
> 
> To make such adapters work add support for a driver polling on MST
> inerrupt flags, and wire this up in the i915 driver. The sink can clear
> an interrupt it raised after 110 msec if the source doesn't respond, so
> use a 50 msec poll period to avoid missing an interrupt. Polling of the
> MST interrupt flags is explicitly allowed by the DP Standard.
> 
> This fixes MST probe failures I saw using this adapter and a DELL U2515H
> monitor.
> 
> v2:
> - Fix the wait event timeout for the no-poll case.
> v3 (Ville):
> - Fix the short pulse duration limits in the commit log prescribed by the
>   DP Standard.
> - Add code comment explaining why/how polling is used.
> - Factor out a helper to schedule the port's hpd irq handler and move it
>   to the rest of hotplug handlers.
> - Document the new MST callback.
> - s/update_hpd_irq_state/poll_hpd_irq/
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
>  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
>  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
>  include/drm/drm_dp_mst_helper.h              |  9 ++++++
>  5 files changed, 68 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
> index 5bc72e800b85..2a309fb2c4cc 100644
> --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb,
>  				    struct drm_dp_sideband_msg_tx *txmsg)
>  {
>  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> +	unsigned long wait_expires = jiffies + wait_timeout;
>  	int ret;
>  
> -	ret = wait_event_timeout(mgr->tx_waitq,
> -				 check_txmsg_state(mgr, txmsg),
> -				 (4 * HZ));
> +	for (;;) {
> +		/*
> +		 * If the driver provides a way for this, change to
> +		 * poll-waiting for the MST reply interrupt if we didn't receive
> +		 * it for 50 msec. This would cater for cases where the HPD
> +		 * pulse signal got lost somewhere, even though the sink raised
> +		 * the corresponding MST interrupt correctly. One example is the
> +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> +		 * filters out short pulses with a duration less than ~540 usec.
> +		 *
> +		 * The poll period is 50 msec to avoid missing an interrupt
> +		 * after the sink has cleared it (after a 110msec timeout
> +		 * since it raised the interrupt).
> +		 */
> +		ret = wait_event_timeout(mgr->tx_waitq,
> +					 check_txmsg_state(mgr, txmsg),
> +					 mgr->cbs->poll_hpd_irq ?
> +						msecs_to_jiffies(50) :
> +						wait_timeout);
> +
> +		if (ret || !mgr->cbs->poll_hpd_irq ||
> +		    time_after(jiffies, wait_expires))
> +			break;
> +
> +		mgr->cbs->poll_hpd_irq(mgr);
> +	}
> +
>  	mutex_lock(&mgr->qlock);
>  	if (ret > 0) {
>  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index d18b406f2a7d..9be52643205d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -33,6 +33,7 @@
>  #include "intel_connector.h"
>  #include "intel_ddi.h"
>  #include "intel_display_types.h"
> +#include "intel_hotplug.h"
>  #include "intel_dp.h"
>  #include "intel_dp_mst.h"
>  #include "intel_dpio_phy.h"
> @@ -765,8 +766,17 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
>  	return NULL;
>  }
>  
> +static void
> +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> +{
> +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> +
> +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> +}
> +
>  static const struct drm_dp_mst_topology_cbs mst_cbs = {
>  	.add_connector = intel_dp_add_mst_connector,
> +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
>  };
>  
>  static struct intel_dp_mst_encoder *
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
> index 4f6f560e093e..664f88354101 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct *work)
>  	}
>  }
>  
> +/**
> + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> + * @dig_port: digital port
> + *
> + * Trigger an HPD interrupt event for the given port, emulating a short pulse
> + * generated by the sink, and schedule the dig port work to handle it.
> + */
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +
> +	spin_lock_irq(&i915->irq_lock);
> +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> +	spin_unlock_irq(&i915->irq_lock);
> +
> +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> +}
> +
>  /*
>   * Handle hotplug events outside the interrupt handler proper.
>   */
> diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h
> index 777b0743257e..a704d7c94d16 100644
> --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> @@ -10,6 +10,7 @@
>  
>  struct drm_i915_private;
>  struct intel_connector;
> +struct intel_digital_port;
>  struct intel_encoder;
>  enum port;
>  
> @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct intel_encoder *encoder,
>  					       struct intel_connector *connector);
>  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
>  			   u32 pin_mask, u32 long_mask);
> +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
>  void intel_hpd_init(struct drm_i915_private *dev_priv);
>  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
>  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
> index 9e1ffcd7cb68..b230ff6f7081 100644
> --- a/include/drm/drm_dp_mst_helper.h
> +++ b/include/drm/drm_dp_mst_helper.h
> @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
>  struct drm_dp_mst_topology_cbs {
>  	/* create a connector for a port */
>  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *path);
> +	/*
> +	 * Checks for any pending MST interrupts, passing them to MST core for
> +	 * processing, the same way an HPD IRQ pulse handler would do this.
> +	 * If provided MST core calls this callback from a poll-waiting loop
> +	 * when waiting for MST down message replies. The driver is expected
> +	 * to guard against a race between this callback and the driver's HPD
> +	 * IRQ pulse handler.
> +	 */
> +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
>  };
>  
>  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> -- 
> 2.23.1
> 
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> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Lyude Paul]

Hi! Awesome patch series!

Reviewed-by: Lyude Paul <lyude@redhat.com>

Also re merging via drm-intel-next-queued - I think that should be fine, fwiw
merging via drm-misc-next might be another option (I've definitely done this in
the past for series that touched MST and drivers, but I don't have a hard
preference either way).

On Tue, 2020-06-09 at 15:15 +0300, Imre Deak wrote:
> Hi Dave, Lyude,
> 
> are you ok to merge this patchset via the drm-intel-next-queued tree?
> 
> --Imre
> 
> On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> > Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> > incorrectly filter out HPD short pulses with a duration less than
> > ~540 usec, leading to MST probe failures.
> > 
> > According to the DP Standard 2.0 section 5.1.4:
> > - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> > - DP sources should detect short pulses in the 250 usec -> 2 msec range
> > 
> > According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> > should detect and forward short pulses according to how sources should
> > detect them as specified in the DP Standard (250 usec -> 2 msec).
> > 
> > Based on the above filtering out short pulses with a duration less than
> > 540 usec is incorrect.
> > 
> > To make such adapters work add support for a driver polling on MST
> > inerrupt flags, and wire this up in the i915 driver. The sink can clear
> > an interrupt it raised after 110 msec if the source doesn't respond, so
> > use a 50 msec poll period to avoid missing an interrupt. Polling of the
> > MST interrupt flags is explicitly allowed by the DP Standard.
> > 
> > This fixes MST probe failures I saw using this adapter and a DELL U2515H
> > monitor.
> > 
> > v2:
> > - Fix the wait event timeout for the no-poll case.
> > v3 (Ville):
> > - Fix the short pulse duration limits in the commit log prescribed by the
> >   DP Standard.
> > - Add code comment explaining why/how polling is used.
> > - Factor out a helper to schedule the port's hpd irq handler and move it
> >   to the rest of hotplug handlers.
> > - Document the new MST callback.
> > - s/update_hpd_irq_state/poll_hpd_irq/
> > 
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
> >  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
> >  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
> >  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
> >  include/drm/drm_dp_mst_helper.h              |  9 ++++++
> >  5 files changed, 68 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> > b/drivers/gpu/drm/drm_dp_mst_topology.c
> > index 5bc72e800b85..2a309fb2c4cc 100644
> > --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> > @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct
> > drm_dp_mst_branch *mstb,
> >  				    struct drm_dp_sideband_msg_tx *txmsg)
> >  {
> >  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> > +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> > +	unsigned long wait_expires = jiffies + wait_timeout;
> >  	int ret;
> >  
> > -	ret = wait_event_timeout(mgr->tx_waitq,
> > -				 check_txmsg_state(mgr, txmsg),
> > -				 (4 * HZ));
> > +	for (;;) {
> > +		/*
> > +		 * If the driver provides a way for this, change to
> > +		 * poll-waiting for the MST reply interrupt if we didn't receive
> > +		 * it for 50 msec. This would cater for cases where the HPD
> > +		 * pulse signal got lost somewhere, even though the sink raised
> > +		 * the corresponding MST interrupt correctly. One example is the
> > +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> > +		 * filters out short pulses with a duration less than ~540 usec.
> > +		 *
> > +		 * The poll period is 50 msec to avoid missing an interrupt
> > +		 * after the sink has cleared it (after a 110msec timeout
> > +		 * since it raised the interrupt).
> > +		 */
> > +		ret = wait_event_timeout(mgr->tx_waitq,
> > +					 check_txmsg_state(mgr, txmsg),
> > +					 mgr->cbs->poll_hpd_irq ?
> > +						msecs_to_jiffies(50) :
> > +						wait_timeout);
> > +
> > +		if (ret || !mgr->cbs->poll_hpd_irq ||
> > +		    time_after(jiffies, wait_expires))
> > +			break;
> > +
> > +		mgr->cbs->poll_hpd_irq(mgr);
> > +	}
> > +
> >  	mutex_lock(&mgr->qlock);
> >  	if (ret > 0) {
> >  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > index d18b406f2a7d..9be52643205d 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > @@ -33,6 +33,7 @@
> >  #include "intel_connector.h"
> >  #include "intel_ddi.h"
> >  #include "intel_display_types.h"
> > +#include "intel_hotplug.h"
> >  #include "intel_dp.h"
> >  #include "intel_dp_mst.h"
> >  #include "intel_dpio_phy.h"
> > @@ -765,8 +766,17 @@ static struct drm_connector
> > *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> >  	return NULL;
> >  }
> >  
> > +static void
> > +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> > +{
> > +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> > +
> > +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> > +}
> > +
> >  static const struct drm_dp_mst_topology_cbs mst_cbs = {
> >  	.add_connector = intel_dp_add_mst_connector,
> > +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
> >  };
> >  
> >  static struct intel_dp_mst_encoder *
> > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > index 4f6f560e093e..664f88354101 100644
> > --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct
> > *work)
> >  	}
> >  }
> >  
> > +/**
> > + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> > + * @dig_port: digital port
> > + *
> > + * Trigger an HPD interrupt event for the given port, emulating a short
> > pulse
> > + * generated by the sink, and schedule the dig port work to handle it.
> > + */
> > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > +
> > +	spin_lock_irq(&i915->irq_lock);
> > +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> > +	spin_unlock_irq(&i915->irq_lock);
> > +
> > +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> > +}
> > +
> >  /*
> >   * Handle hotplug events outside the interrupt handler proper.
> >   */
> > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > index 777b0743257e..a704d7c94d16 100644
> > --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > @@ -10,6 +10,7 @@
> >  
> >  struct drm_i915_private;
> >  struct intel_connector;
> > +struct intel_digital_port;
> >  struct intel_encoder;
> >  enum port;
> >  
> > @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct
> > intel_encoder *encoder,
> >  					       struct intel_connector
> > *connector);
> >  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
> >  			   u32 pin_mask, u32 long_mask);
> > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
> >  void intel_hpd_init(struct drm_i915_private *dev_priv);
> >  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
> >  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> > diff --git a/include/drm/drm_dp_mst_helper.h
> > b/include/drm/drm_dp_mst_helper.h
> > index 9e1ffcd7cb68..b230ff6f7081 100644
> > --- a/include/drm/drm_dp_mst_helper.h
> > +++ b/include/drm/drm_dp_mst_helper.h
> > @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
> >  struct drm_dp_mst_topology_cbs {
> >  	/* create a connector for a port */
> >  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr
> > *mgr, struct drm_dp_mst_port *port, const char *path);
> > +	/*
> > +	 * Checks for any pending MST interrupts, passing them to MST core for
> > +	 * processing, the same way an HPD IRQ pulse handler would do this.
> > +	 * If provided MST core calls this callback from a poll-waiting loop
> > +	 * when waiting for MST down message replies. The driver is expected
> > +	 * to guard against a race between this callback and the driver's HPD
> > +	 * IRQ pulse handler.
> > +	 */
> > +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
> >  };
> >  
> >  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> > -- 
> > 2.23.1
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx

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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Lyude Paul]

Hi! Awesome patch series!

Reviewed-by: Lyude Paul <lyude@redhat.com>

Also re merging via drm-intel-next-queued - I think that should be fine, fwiw
merging via drm-misc-next might be another option (I've definitely done this in
the past for series that touched MST and drivers, but I don't have a hard
preference either way).

On Tue, 2020-06-09 at 15:15 +0300, Imre Deak wrote:
> Hi Dave, Lyude,
> 
> are you ok to merge this patchset via the drm-intel-next-queued tree?
> 
> --Imre
> 
> On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> > Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> > incorrectly filter out HPD short pulses with a duration less than
> > ~540 usec, leading to MST probe failures.
> > 
> > According to the DP Standard 2.0 section 5.1.4:
> > - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> > - DP sources should detect short pulses in the 250 usec -> 2 msec range
> > 
> > According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> > should detect and forward short pulses according to how sources should
> > detect them as specified in the DP Standard (250 usec -> 2 msec).
> > 
> > Based on the above filtering out short pulses with a duration less than
> > 540 usec is incorrect.
> > 
> > To make such adapters work add support for a driver polling on MST
> > inerrupt flags, and wire this up in the i915 driver. The sink can clear
> > an interrupt it raised after 110 msec if the source doesn't respond, so
> > use a 50 msec poll period to avoid missing an interrupt. Polling of the
> > MST interrupt flags is explicitly allowed by the DP Standard.
> > 
> > This fixes MST probe failures I saw using this adapter and a DELL U2515H
> > monitor.
> > 
> > v2:
> > - Fix the wait event timeout for the no-poll case.
> > v3 (Ville):
> > - Fix the short pulse duration limits in the commit log prescribed by the
> >   DP Standard.
> > - Add code comment explaining why/how polling is used.
> > - Factor out a helper to schedule the port's hpd irq handler and move it
> >   to the rest of hotplug handlers.
> > - Document the new MST callback.
> > - s/update_hpd_irq_state/poll_hpd_irq/
> > 
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
> >  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
> >  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
> >  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
> >  include/drm/drm_dp_mst_helper.h              |  9 ++++++
> >  5 files changed, 68 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> > b/drivers/gpu/drm/drm_dp_mst_topology.c
> > index 5bc72e800b85..2a309fb2c4cc 100644
> > --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> > @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct
> > drm_dp_mst_branch *mstb,
> >  				    struct drm_dp_sideband_msg_tx *txmsg)
> >  {
> >  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> > +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> > +	unsigned long wait_expires = jiffies + wait_timeout;
> >  	int ret;
> >  
> > -	ret = wait_event_timeout(mgr->tx_waitq,
> > -				 check_txmsg_state(mgr, txmsg),
> > -				 (4 * HZ));
> > +	for (;;) {
> > +		/*
> > +		 * If the driver provides a way for this, change to
> > +		 * poll-waiting for the MST reply interrupt if we didn't receive
> > +		 * it for 50 msec. This would cater for cases where the HPD
> > +		 * pulse signal got lost somewhere, even though the sink raised
> > +		 * the corresponding MST interrupt correctly. One example is the
> > +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> > +		 * filters out short pulses with a duration less than ~540 usec.
> > +		 *
> > +		 * The poll period is 50 msec to avoid missing an interrupt
> > +		 * after the sink has cleared it (after a 110msec timeout
> > +		 * since it raised the interrupt).
> > +		 */
> > +		ret = wait_event_timeout(mgr->tx_waitq,
> > +					 check_txmsg_state(mgr, txmsg),
> > +					 mgr->cbs->poll_hpd_irq ?
> > +						msecs_to_jiffies(50) :
> > +						wait_timeout);
> > +
> > +		if (ret || !mgr->cbs->poll_hpd_irq ||
> > +		    time_after(jiffies, wait_expires))
> > +			break;
> > +
> > +		mgr->cbs->poll_hpd_irq(mgr);
> > +	}
> > +
> >  	mutex_lock(&mgr->qlock);
> >  	if (ret > 0) {
> >  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > index d18b406f2a7d..9be52643205d 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > @@ -33,6 +33,7 @@
> >  #include "intel_connector.h"
> >  #include "intel_ddi.h"
> >  #include "intel_display_types.h"
> > +#include "intel_hotplug.h"
> >  #include "intel_dp.h"
> >  #include "intel_dp_mst.h"
> >  #include "intel_dpio_phy.h"
> > @@ -765,8 +766,17 @@ static struct drm_connector
> > *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> >  	return NULL;
> >  }
> >  
> > +static void
> > +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> > +{
> > +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> > +
> > +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> > +}
> > +
> >  static const struct drm_dp_mst_topology_cbs mst_cbs = {
> >  	.add_connector = intel_dp_add_mst_connector,
> > +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
> >  };
> >  
> >  static struct intel_dp_mst_encoder *
> > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > index 4f6f560e093e..664f88354101 100644
> > --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct
> > *work)
> >  	}
> >  }
> >  
> > +/**
> > + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> > + * @dig_port: digital port
> > + *
> > + * Trigger an HPD interrupt event for the given port, emulating a short
> > pulse
> > + * generated by the sink, and schedule the dig port work to handle it.
> > + */
> > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > +
> > +	spin_lock_irq(&i915->irq_lock);
> > +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> > +	spin_unlock_irq(&i915->irq_lock);
> > +
> > +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> > +}
> > +
> >  /*
> >   * Handle hotplug events outside the interrupt handler proper.
> >   */
> > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > index 777b0743257e..a704d7c94d16 100644
> > --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > @@ -10,6 +10,7 @@
> >  
> >  struct drm_i915_private;
> >  struct intel_connector;
> > +struct intel_digital_port;
> >  struct intel_encoder;
> >  enum port;
> >  
> > @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct
> > intel_encoder *encoder,
> >  					       struct intel_connector
> > *connector);
> >  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
> >  			   u32 pin_mask, u32 long_mask);
> > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
> >  void intel_hpd_init(struct drm_i915_private *dev_priv);
> >  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
> >  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> > diff --git a/include/drm/drm_dp_mst_helper.h
> > b/include/drm/drm_dp_mst_helper.h
> > index 9e1ffcd7cb68..b230ff6f7081 100644
> > --- a/include/drm/drm_dp_mst_helper.h
> > +++ b/include/drm/drm_dp_mst_helper.h
> > @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
> >  struct drm_dp_mst_topology_cbs {
> >  	/* create a connector for a port */
> >  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr
> > *mgr, struct drm_dp_mst_port *port, const char *path);
> > +	/*
> > +	 * Checks for any pending MST interrupts, passing them to MST core for
> > +	 * processing, the same way an HPD IRQ pulse handler would do this.
> > +	 * If provided MST core calls this callback from a poll-waiting loop
> > +	 * when waiting for MST down message replies. The driver is expected
> > +	 * to guard against a race between this callback and the driver's HPD
> > +	 * IRQ pulse handler.
> > +	 */
> > +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
> >  };
> >  
> >  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> > -- 
> > 2.23.1
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx

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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

On Tue, Jun 09, 2020 at 11:58:18AM -0400, Lyude Paul wrote:
> Hi! Awesome patch series!
> 
> Reviewed-by: Lyude Paul <lyude@redhat.com>

Thanks.

> Also re merging via drm-intel-next-queued - I think that should be fine, fwiw
> merging via drm-misc-next might be another option (I've definitely done this in
> the past for series that touched MST and drivers, but I don't have a hard
> preference either way).

Ok, if no objections I'll merge 2/3 via drm-misc-next, that seems to
make more sense.

Could you also take a look at
https://patchwork.freedesktop.org/series/78100/

I should've CC'd you.

> On Tue, 2020-06-09 at 15:15 +0300, Imre Deak wrote:
> > Hi Dave, Lyude,
> > 
> > are you ok to merge this patchset via the drm-intel-next-queued tree?
> > 
> > --Imre
> > 
> > On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> > > Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> > > incorrectly filter out HPD short pulses with a duration less than
> > > ~540 usec, leading to MST probe failures.
> > > 
> > > According to the DP Standard 2.0 section 5.1.4:
> > > - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> > > - DP sources should detect short pulses in the 250 usec -> 2 msec range
> > > 
> > > According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> > > should detect and forward short pulses according to how sources should
> > > detect them as specified in the DP Standard (250 usec -> 2 msec).
> > > 
> > > Based on the above filtering out short pulses with a duration less than
> > > 540 usec is incorrect.
> > > 
> > > To make such adapters work add support for a driver polling on MST
> > > inerrupt flags, and wire this up in the i915 driver. The sink can clear
> > > an interrupt it raised after 110 msec if the source doesn't respond, so
> > > use a 50 msec poll period to avoid missing an interrupt. Polling of the
> > > MST interrupt flags is explicitly allowed by the DP Standard.
> > > 
> > > This fixes MST probe failures I saw using this adapter and a DELL U2515H
> > > monitor.
> > > 
> > > v2:
> > > - Fix the wait event timeout for the no-poll case.
> > > v3 (Ville):
> > > - Fix the short pulse duration limits in the commit log prescribed by the
> > >   DP Standard.
> > > - Add code comment explaining why/how polling is used.
> > > - Factor out a helper to schedule the port's hpd irq handler and move it
> > >   to the rest of hotplug handlers.
> > > - Document the new MST callback.
> > > - s/update_hpd_irq_state/poll_hpd_irq/
> > > 
> > > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > > ---
> > >  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
> > >  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
> > >  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
> > >  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
> > >  include/drm/drm_dp_mst_helper.h              |  9 ++++++
> > >  5 files changed, 68 insertions(+), 3 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> > > b/drivers/gpu/drm/drm_dp_mst_topology.c
> > > index 5bc72e800b85..2a309fb2c4cc 100644
> > > --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> > > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> > > @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct
> > > drm_dp_mst_branch *mstb,
> > >  				    struct drm_dp_sideband_msg_tx *txmsg)
> > >  {
> > >  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> > > +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> > > +	unsigned long wait_expires = jiffies + wait_timeout;
> > >  	int ret;
> > >  
> > > -	ret = wait_event_timeout(mgr->tx_waitq,
> > > -				 check_txmsg_state(mgr, txmsg),
> > > -				 (4 * HZ));
> > > +	for (;;) {
> > > +		/*
> > > +		 * If the driver provides a way for this, change to
> > > +		 * poll-waiting for the MST reply interrupt if we didn't receive
> > > +		 * it for 50 msec. This would cater for cases where the HPD
> > > +		 * pulse signal got lost somewhere, even though the sink raised
> > > +		 * the corresponding MST interrupt correctly. One example is the
> > > +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> > > +		 * filters out short pulses with a duration less than ~540 usec.
> > > +		 *
> > > +		 * The poll period is 50 msec to avoid missing an interrupt
> > > +		 * after the sink has cleared it (after a 110msec timeout
> > > +		 * since it raised the interrupt).
> > > +		 */
> > > +		ret = wait_event_timeout(mgr->tx_waitq,
> > > +					 check_txmsg_state(mgr, txmsg),
> > > +					 mgr->cbs->poll_hpd_irq ?
> > > +						msecs_to_jiffies(50) :
> > > +						wait_timeout);
> > > +
> > > +		if (ret || !mgr->cbs->poll_hpd_irq ||
> > > +		    time_after(jiffies, wait_expires))
> > > +			break;
> > > +
> > > +		mgr->cbs->poll_hpd_irq(mgr);
> > > +	}
> > > +
> > >  	mutex_lock(&mgr->qlock);
> > >  	if (ret > 0) {
> > >  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> > > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > index d18b406f2a7d..9be52643205d 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > @@ -33,6 +33,7 @@
> > >  #include "intel_connector.h"
> > >  #include "intel_ddi.h"
> > >  #include "intel_display_types.h"
> > > +#include "intel_hotplug.h"
> > >  #include "intel_dp.h"
> > >  #include "intel_dp_mst.h"
> > >  #include "intel_dpio_phy.h"
> > > @@ -765,8 +766,17 @@ static struct drm_connector
> > > *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> > >  	return NULL;
> > >  }
> > >  
> > > +static void
> > > +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> > > +{
> > > +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> > > +
> > > +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> > > +}
> > > +
> > >  static const struct drm_dp_mst_topology_cbs mst_cbs = {
> > >  	.add_connector = intel_dp_add_mst_connector,
> > > +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
> > >  };
> > >  
> > >  static struct intel_dp_mst_encoder *
> > > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > index 4f6f560e093e..664f88354101 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct
> > > *work)
> > >  	}
> > >  }
> > >  
> > > +/**
> > > + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> > > + * @dig_port: digital port
> > > + *
> > > + * Trigger an HPD interrupt event for the given port, emulating a short
> > > pulse
> > > + * generated by the sink, and schedule the dig port work to handle it.
> > > + */
> > > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> > > +{
> > > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > > +
> > > +	spin_lock_irq(&i915->irq_lock);
> > > +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> > > +	spin_unlock_irq(&i915->irq_lock);
> > > +
> > > +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> > > +}
> > > +
> > >  /*
> > >   * Handle hotplug events outside the interrupt handler proper.
> > >   */
> > > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > index 777b0743257e..a704d7c94d16 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > @@ -10,6 +10,7 @@
> > >  
> > >  struct drm_i915_private;
> > >  struct intel_connector;
> > > +struct intel_digital_port;
> > >  struct intel_encoder;
> > >  enum port;
> > >  
> > > @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct
> > > intel_encoder *encoder,
> > >  					       struct intel_connector
> > > *connector);
> > >  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
> > >  			   u32 pin_mask, u32 long_mask);
> > > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
> > >  void intel_hpd_init(struct drm_i915_private *dev_priv);
> > >  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
> > >  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> > > diff --git a/include/drm/drm_dp_mst_helper.h
> > > b/include/drm/drm_dp_mst_helper.h
> > > index 9e1ffcd7cb68..b230ff6f7081 100644
> > > --- a/include/drm/drm_dp_mst_helper.h
> > > +++ b/include/drm/drm_dp_mst_helper.h
> > > @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
> > >  struct drm_dp_mst_topology_cbs {
> > >  	/* create a connector for a port */
> > >  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr
> > > *mgr, struct drm_dp_mst_port *port, const char *path);
> > > +	/*
> > > +	 * Checks for any pending MST interrupts, passing them to MST core for
> > > +	 * processing, the same way an HPD IRQ pulse handler would do this.
> > > +	 * If provided MST core calls this callback from a poll-waiting loop
> > > +	 * when waiting for MST down message replies. The driver is expected
> > > +	 * to guard against a race between this callback and the driver's HPD
> > > +	 * IRQ pulse handler.
> > > +	 */
> > > +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
> > >  };
> > >  
> > >  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> > > -- 
> > > 2.23.1
> > > 
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > Intel-gfx@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
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Re: [Intel-gfx] [PATCH v3 3/3] drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses

[Imre Deak]

On Tue, Jun 09, 2020 at 11:58:18AM -0400, Lyude Paul wrote:
> Hi! Awesome patch series!
> 
> Reviewed-by: Lyude Paul <lyude@redhat.com>

Thanks.

> Also re merging via drm-intel-next-queued - I think that should be fine, fwiw
> merging via drm-misc-next might be another option (I've definitely done this in
> the past for series that touched MST and drivers, but I don't have a hard
> preference either way).

Ok, if no objections I'll merge 2/3 via drm-misc-next, that seems to
make more sense.

Could you also take a look at
https://patchwork.freedesktop.org/series/78100/

I should've CC'd you.

> On Tue, 2020-06-09 at 15:15 +0300, Imre Deak wrote:
> > Hi Dave, Lyude,
> > 
> > are you ok to merge this patchset via the drm-intel-next-queued tree?
> > 
> > --Imre
> > 
> > On Thu, Jun 04, 2020 at 09:45:00PM +0300, Imre Deak wrote:
> > > Some TypeC -> native DP adapters, at least the Club 3D CAC-1557 adapter,
> > > incorrectly filter out HPD short pulses with a duration less than
> > > ~540 usec, leading to MST probe failures.
> > > 
> > > According to the DP Standard 2.0 section 5.1.4:
> > > - DP sinks should generate short pulses in the 500 usec -> 1 msec range
> > > - DP sources should detect short pulses in the 250 usec -> 2 msec range
> > > 
> > > According to the DP Alt Mode on TypeC Standard section 3.9.2, adapters
> > > should detect and forward short pulses according to how sources should
> > > detect them as specified in the DP Standard (250 usec -> 2 msec).
> > > 
> > > Based on the above filtering out short pulses with a duration less than
> > > 540 usec is incorrect.
> > > 
> > > To make such adapters work add support for a driver polling on MST
> > > inerrupt flags, and wire this up in the i915 driver. The sink can clear
> > > an interrupt it raised after 110 msec if the source doesn't respond, so
> > > use a 50 msec poll period to avoid missing an interrupt. Polling of the
> > > MST interrupt flags is explicitly allowed by the DP Standard.
> > > 
> > > This fixes MST probe failures I saw using this adapter and a DELL U2515H
> > > monitor.
> > > 
> > > v2:
> > > - Fix the wait event timeout for the no-poll case.
> > > v3 (Ville):
> > > - Fix the short pulse duration limits in the commit log prescribed by the
> > >   DP Standard.
> > > - Add code comment explaining why/how polling is used.
> > > - Factor out a helper to schedule the port's hpd irq handler and move it
> > >   to the rest of hotplug handlers.
> > > - Document the new MST callback.
> > > - s/update_hpd_irq_state/poll_hpd_irq/
> > > 
> > > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > > ---
> > >  drivers/gpu/drm/drm_dp_mst_topology.c        | 32 ++++++++++++++++++--
> > >  drivers/gpu/drm/i915/display/intel_dp_mst.c  | 10 ++++++
> > >  drivers/gpu/drm/i915/display/intel_hotplug.c | 18 +++++++++++
> > >  drivers/gpu/drm/i915/display/intel_hotplug.h |  2 ++
> > >  include/drm/drm_dp_mst_helper.h              |  9 ++++++
> > >  5 files changed, 68 insertions(+), 3 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c
> > > b/drivers/gpu/drm/drm_dp_mst_topology.c
> > > index 5bc72e800b85..2a309fb2c4cc 100644
> > > --- a/drivers/gpu/drm/drm_dp_mst_topology.c
> > > +++ b/drivers/gpu/drm/drm_dp_mst_topology.c
> > > @@ -1178,11 +1178,37 @@ static int drm_dp_mst_wait_tx_reply(struct
> > > drm_dp_mst_branch *mstb,
> > >  				    struct drm_dp_sideband_msg_tx *txmsg)
> > >  {
> > >  	struct drm_dp_mst_topology_mgr *mgr = mstb->mgr;
> > > +	unsigned long wait_timeout = msecs_to_jiffies(4000);
> > > +	unsigned long wait_expires = jiffies + wait_timeout;
> > >  	int ret;
> > >  
> > > -	ret = wait_event_timeout(mgr->tx_waitq,
> > > -				 check_txmsg_state(mgr, txmsg),
> > > -				 (4 * HZ));
> > > +	for (;;) {
> > > +		/*
> > > +		 * If the driver provides a way for this, change to
> > > +		 * poll-waiting for the MST reply interrupt if we didn't receive
> > > +		 * it for 50 msec. This would cater for cases where the HPD
> > > +		 * pulse signal got lost somewhere, even though the sink raised
> > > +		 * the corresponding MST interrupt correctly. One example is the
> > > +		 * Club 3D CAC-1557 TypeC -> DP adapter which for some reason
> > > +		 * filters out short pulses with a duration less than ~540 usec.
> > > +		 *
> > > +		 * The poll period is 50 msec to avoid missing an interrupt
> > > +		 * after the sink has cleared it (after a 110msec timeout
> > > +		 * since it raised the interrupt).
> > > +		 */
> > > +		ret = wait_event_timeout(mgr->tx_waitq,
> > > +					 check_txmsg_state(mgr, txmsg),
> > > +					 mgr->cbs->poll_hpd_irq ?
> > > +						msecs_to_jiffies(50) :
> > > +						wait_timeout);
> > > +
> > > +		if (ret || !mgr->cbs->poll_hpd_irq ||
> > > +		    time_after(jiffies, wait_expires))
> > > +			break;
> > > +
> > > +		mgr->cbs->poll_hpd_irq(mgr);
> > > +	}
> > > +
> > >  	mutex_lock(&mgr->qlock);
> > >  	if (ret > 0) {
> > >  		if (txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT) {
> > > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > index d18b406f2a7d..9be52643205d 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > > @@ -33,6 +33,7 @@
> > >  #include "intel_connector.h"
> > >  #include "intel_ddi.h"
> > >  #include "intel_display_types.h"
> > > +#include "intel_hotplug.h"
> > >  #include "intel_dp.h"
> > >  #include "intel_dp_mst.h"
> > >  #include "intel_dpio_phy.h"
> > > @@ -765,8 +766,17 @@ static struct drm_connector
> > > *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
> > >  	return NULL;
> > >  }
> > >  
> > > +static void
> > > +intel_dp_mst_poll_hpd_irq(struct drm_dp_mst_topology_mgr *mgr)
> > > +{
> > > +	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
> > > +
> > > +	intel_hpd_trigger_irq(dp_to_dig_port(intel_dp));
> > > +}
> > > +
> > >  static const struct drm_dp_mst_topology_cbs mst_cbs = {
> > >  	.add_connector = intel_dp_add_mst_connector,
> > > +	.poll_hpd_irq = intel_dp_mst_poll_hpd_irq,
> > >  };
> > >  
> > >  static struct intel_dp_mst_encoder *
> > > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > index 4f6f560e093e..664f88354101 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
> > > @@ -347,6 +347,24 @@ static void i915_digport_work_func(struct work_struct
> > > *work)
> > >  	}
> > >  }
> > >  
> > > +/**
> > > + * intel_hpd_trigger_irq - trigger an hpd irq event for a port
> > > + * @dig_port: digital port
> > > + *
> > > + * Trigger an HPD interrupt event for the given port, emulating a short
> > > pulse
> > > + * generated by the sink, and schedule the dig port work to handle it.
> > > + */
> > > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port)
> > > +{
> > > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > > +
> > > +	spin_lock_irq(&i915->irq_lock);
> > > +	i915->hotplug.short_port_mask |= BIT(dig_port->base.port);
> > > +	spin_unlock_irq(&i915->irq_lock);
> > > +
> > > +	queue_work(i915->hotplug.dp_wq, &i915->hotplug.dig_port_work);
> > > +}
> > > +
> > >  /*
> > >   * Handle hotplug events outside the interrupt handler proper.
> > >   */
> > > diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > index 777b0743257e..a704d7c94d16 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h
> > > @@ -10,6 +10,7 @@
> > >  
> > >  struct drm_i915_private;
> > >  struct intel_connector;
> > > +struct intel_digital_port;
> > >  struct intel_encoder;
> > >  enum port;
> > >  
> > > @@ -18,6 +19,7 @@ enum intel_hotplug_state intel_encoder_hotplug(struct
> > > intel_encoder *encoder,
> > >  					       struct intel_connector
> > > *connector);
> > >  void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
> > >  			   u32 pin_mask, u32 long_mask);
> > > +void intel_hpd_trigger_irq(struct intel_digital_port *dig_port);
> > >  void intel_hpd_init(struct drm_i915_private *dev_priv);
> > >  void intel_hpd_init_work(struct drm_i915_private *dev_priv);
> > >  void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> > > diff --git a/include/drm/drm_dp_mst_helper.h
> > > b/include/drm/drm_dp_mst_helper.h
> > > index 9e1ffcd7cb68..b230ff6f7081 100644
> > > --- a/include/drm/drm_dp_mst_helper.h
> > > +++ b/include/drm/drm_dp_mst_helper.h
> > > @@ -475,6 +475,15 @@ struct drm_dp_mst_topology_mgr;
> > >  struct drm_dp_mst_topology_cbs {
> > >  	/* create a connector for a port */
> > >  	struct drm_connector *(*add_connector)(struct drm_dp_mst_topology_mgr
> > > *mgr, struct drm_dp_mst_port *port, const char *path);
> > > +	/*
> > > +	 * Checks for any pending MST interrupts, passing them to MST core for
> > > +	 * processing, the same way an HPD IRQ pulse handler would do this.
> > > +	 * If provided MST core calls this callback from a poll-waiting loop
> > > +	 * when waiting for MST down message replies. The driver is expected
> > > +	 * to guard against a race between this callback and the driver's HPD
> > > +	 * IRQ pulse handler.
> > > +	 */
> > > +	void (*poll_hpd_irq)(struct drm_dp_mst_topology_mgr *mgr);
> > >  };
> > >  
> > >  #define DP_MAX_PAYLOAD (sizeof(unsigned long) * 8)
> > > -- 
> > > 2.23.1
> > > 
> > > _______________________________________________
> > > Intel-gfx mailing list
> > > Intel-gfx@lists.freedesktop.org
> > > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
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Re: [Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Souza, Jose]

On Thu, 2020-06-04 at 00:10 +0300, Imre Deak wrote:
> Currently MST on a port can get enabled/disabled from the hotplug work
> and get disabled from the short pulse work in a racy way. Fix this by
> relying on the MST state checking in the hotplug work and just schedule
> a hotplug work from the short pulse handler if some problem happened
> during the MST interrupt handling.

Nice

> 
> This removes the explicit MST disabling in case of an AUX failure, but
> if AUX fails, then probably the detection will also fail during the
> scheduled hotplug work and it's not guaranteed that we'll see
> intermittent errors anyway.
> 
> While at it also simplify the error checking of the MST interrupt
> handler.
> 

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
>  1 file changed, 4 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 55fda074c0ad..befbcacddaa1 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
>  		}
>  	}
>  
> -	return need_retrain;
> +	return need_retrain ? -EINVAL : 0;
>  }
>  
>  static bool
> @@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
>  	}
>  
>  	if (intel_dp->is_mst) {
> -		switch (intel_dp_check_mst_status(intel_dp)) {
> -		case -EINVAL:
> -			/*
> -			 * If we were in MST mode, and device is not
> -			 * there, get out of MST mode
> -			 */
> -			drm_dbg_kms(&i915->drm,
> -				    "MST device may have disappeared %d vs %d\n",
> -				    intel_dp->is_mst,
> -				    intel_dp->mst_mgr.mst_state);
> -			intel_dp->is_mst = false;
> -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> -							intel_dp->is_mst);
> -
> -			return IRQ_NONE;
> -		case 1:
> -			return IRQ_NONE;
> -		default:
> -			break;
> -		}
> -	}
> -
> -	if (!intel_dp->is_mst) {
> -		bool handled;
> -
> -		handled = intel_dp_short_pulse(intel_dp);
> -
> -		if (!handled)
> +		if (intel_dp_check_mst_status(intel_dp) < 0)
>  			return IRQ_NONE;
> +	} else if (!intel_dp_short_pulse(intel_dp)) {
> +		return IRQ_NONE;
>  	}
>  
>  	return IRQ_HANDLED;
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Re: [Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Souza, Jose]

On Thu, 2020-06-04 at 00:10 +0300, Imre Deak wrote:
> Currently MST on a port can get enabled/disabled from the hotplug work
> and get disabled from the short pulse work in a racy way. Fix this by
> relying on the MST state checking in the hotplug work and just schedule
> a hotplug work from the short pulse handler if some problem happened
> during the MST interrupt handling.

Nice

> 
> This removes the explicit MST disabling in case of an AUX failure, but
> if AUX fails, then probably the detection will also fail during the
> scheduled hotplug work and it's not guaranteed that we'll see
> intermittent errors anyway.
> 
> While at it also simplify the error checking of the MST interrupt
> handler.
> 

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
>  1 file changed, 4 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 55fda074c0ad..befbcacddaa1 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
>  		}
>  	}
>  
> -	return need_retrain;
> +	return need_retrain ? -EINVAL : 0;
>  }
>  
>  static bool
> @@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
>  	}
>  
>  	if (intel_dp->is_mst) {
> -		switch (intel_dp_check_mst_status(intel_dp)) {
> -		case -EINVAL:
> -			/*
> -			 * If we were in MST mode, and device is not
> -			 * there, get out of MST mode
> -			 */
> -			drm_dbg_kms(&i915->drm,
> -				    "MST device may have disappeared %d vs %d\n",
> -				    intel_dp->is_mst,
> -				    intel_dp->mst_mgr.mst_state);
> -			intel_dp->is_mst = false;
> -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> -							intel_dp->is_mst);
> -
> -			return IRQ_NONE;
> -		case 1:
> -			return IRQ_NONE;
> -		default:
> -			break;
> -		}
> -	}
> -
> -	if (!intel_dp->is_mst) {
> -		bool handled;
> -
> -		handled = intel_dp_short_pulse(intel_dp);
> -
> -		if (!handled)
> +		if (intel_dp_check_mst_status(intel_dp) < 0)
>  			return IRQ_NONE;
> +	} else if (!intel_dp_short_pulse(intel_dp)) {
> +		return IRQ_NONE;
>  	}
>  
>  	return IRQ_HANDLED;
_______________________________________________
Intel-gfx mailing list
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port
URL   : https://patchwork.freedesktop.org/series/77969/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
1fa53eafe47a drm/i915/dp_mst: Fix disabling MST on a port
6474c11029fb drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
7a10916bbf7e drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses
-:13: WARNING:TYPO_SPELLING: 'specificatin' may be misspelled - perhaps 'specification'?
#13: 
specificatin DP sources should detect short pulses in the

total: 0 errors, 1 warnings, 0 checks, 56 lines checked

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8579 -> Patchwork_17858
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/index.html

Known issues
------------

  Here are the changes found in Patchwork_17858 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@kms_cursor_legacy@basic-flip-after-cursor-atomic:
    - fi-icl-u2:          [PASS][1] -> [DMESG-WARN][2] ([i915#1982])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-icl-u2/igt@kms_cursor_legacy@basic-flip-after-cursor-atomic.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-icl-u2/igt@kms_cursor_legacy@basic-flip-after-cursor-atomic.html

  
#### Possible fixes ####

  * igt@i915_module_load@reload:
    - fi-byt-n2820:       [DMESG-WARN][3] ([i915#1982]) -> [PASS][4] +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-byt-n2820/igt@i915_module_load@reload.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-byt-n2820/igt@i915_module_load@reload.html

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - {fi-tgl-dsi}:       [DMESG-WARN][5] ([i915#1982]) -> [PASS][6]
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-tgl-dsi/igt@i915_pm_rpm@basic-pci-d3-state.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-tgl-dsi/igt@i915_pm_rpm@basic-pci-d3-state.html
    - fi-tgl-y:           [DMESG-WARN][7] ([i915#1982]) -> [PASS][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-tgl-y/igt@i915_pm_rpm@basic-pci-d3-state.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-tgl-y/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-bsw-kefka:       [DMESG-WARN][9] ([i915#1982]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-bsw-kefka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-bsw-kefka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * {igt@kms_flip@basic-flip-vs-wf_vblank@b-dvi-d1}:
    - fi-bwr-2160:        [FAIL][11] ([i915#1928]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-bwr-2160/igt@kms_flip@basic-flip-vs-wf_vblank@b-dvi-d1.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-bwr-2160/igt@kms_flip@basic-flip-vs-wf_vblank@b-dvi-d1.html

  * {igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1}:
    - fi-icl-u2:          [DMESG-WARN][13] ([i915#1982]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-icl-u2/igt@kms_flip@basic-flip-vs-wf_vblank@c-edp1.html

  
#### Warnings ####

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence:
    - fi-kbl-x1275:       [DMESG-WARN][15] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][16] ([i915#62] / [i915#92]) +3 similar issues
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-kbl-x1275/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-kbl-x1275/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
    - fi-kbl-x1275:       [DMESG-WARN][17] ([i915#62] / [i915#92]) -> [DMESG-WARN][18] ([i915#62] / [i915#92] / [i915#95])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-kbl-x1275/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/fi-kbl-x1275/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (51 -> 44)
------------------------------

  Missing    (7): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-kbl-7560u fi-byt-clapper fi-bdw-samus 


Build changes
-------------

  * Linux: CI_DRM_8579 -> Patchwork_17858

  CI-20190529: 20190529
  CI_DRM_8579: 289eb12c88c49a4ac8d325dc457d8878c7f5bdc0 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5694: a9b6c4c74bfddf7d3d2da3be08804fe315945cea @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17858: 7a10916bbf7e8b6d18f552c3d6135250da4caa20 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

7a10916bbf7e drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses
6474c11029fb drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
1fa53eafe47a drm/i915/dp_mst: Fix disabling MST on a port

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev2)

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev2)
URL   : https://patchwork.freedesktop.org/series/77969/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
240b4ea78683 drm/i915/dp_mst: Fix disabling MST on a port
36ebc90ef54b drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
10ec0f0a95d1 drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses
-:13: WARNING:TYPO_SPELLING: 'specificatin' may be misspelled - perhaps 'specification'?
#13: 
specificatin DP sources should detect short pulses in the

total: 0 errors, 1 warnings, 0 checks, 57 lines checked

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev2)

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev2)
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8579 -> Patchwork_17861
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/index.html

Known issues
------------

  Here are the changes found in Patchwork_17861 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - fi-bsw-kefka:       [PASS][1] -> [DMESG-WARN][2] ([i915#1982])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-bsw-kefka/igt@i915_pm_rpm@basic-pci-d3-state.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-bsw-kefka/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@kms_chamelium@hdmi-crc-fast:
    - fi-kbl-7500u:       [PASS][3] -> [FAIL][4] ([i915#1372])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-kbl-7500u/igt@kms_chamelium@hdmi-crc-fast.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-kbl-7500u/igt@kms_chamelium@hdmi-crc-fast.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-c:
    - fi-tgl-y:           [PASS][5] -> [DMESG-WARN][6] ([i915#1982])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-tgl-y/igt@kms_pipe_crc_basic@read-crc-pipe-c.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-tgl-y/igt@kms_pipe_crc_basic@read-crc-pipe-c.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
    - fi-glk-dsi:         [PASS][7] -> [DMESG-WARN][8] ([i915#1982])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-glk-dsi/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-glk-dsi/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html

  
#### Possible fixes ####

  * igt@i915_module_load@reload:
    - fi-byt-n2820:       [DMESG-WARN][9] ([i915#1982]) -> [PASS][10] +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-byt-n2820/igt@i915_module_load@reload.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-byt-n2820/igt@i915_module_load@reload.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-tgl-y:           [DMESG-WARN][11] ([i915#1982]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-tgl-y/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-tgl-y/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
    - fi-bsw-n3050:       [DMESG-WARN][13] ([i915#1982]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-bsw-n3050/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-bsw-n3050/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * {igt@kms_flip@basic-flip-vs-wf_vblank@b-dvi-d1}:
    - fi-bwr-2160:        [FAIL][15] ([i915#1928]) -> [PASS][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-bwr-2160/igt@kms_flip@basic-flip-vs-wf_vblank@b-dvi-d1.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-bwr-2160/igt@kms_flip@basic-flip-vs-wf_vblank@b-dvi-d1.html

  
#### Warnings ####

  * igt@kms_cursor_legacy@basic-flip-after-cursor-legacy:
    - fi-kbl-x1275:       [DMESG-WARN][17] ([i915#62] / [i915#92]) -> [DMESG-WARN][18] ([i915#62] / [i915#92] / [i915#95]) +2 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-kbl-x1275/igt@kms_cursor_legacy@basic-flip-after-cursor-legacy.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-kbl-x1275/igt@kms_cursor_legacy@basic-flip-after-cursor-legacy.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence:
    - fi-kbl-x1275:       [DMESG-WARN][19] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][20] ([i915#62] / [i915#92]) +2 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/fi-kbl-x1275/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/fi-kbl-x1275/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [i915#1372]: https://gitlab.freedesktop.org/drm/intel/issues/1372
  [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (51 -> 44)
------------------------------

  Missing    (7): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-kbl-7560u fi-byt-clapper fi-bdw-samus 


Build changes
-------------

  * Linux: CI_DRM_8579 -> Patchwork_17861

  CI-20190529: 20190529
  CI_DRM_8579: 289eb12c88c49a4ac8d325dc457d8878c7f5bdc0 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5694: a9b6c4c74bfddf7d3d2da3be08804fe315945cea @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17861: 10ec0f0a95d1ed7b600df217f021788844964bc8 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

10ec0f0a95d1 drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses
36ebc90ef54b drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
240b4ea78683 drm/i915/dp_mst: Fix disabling MST on a port

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.IGT: success for series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8579_full -> Patchwork_17858_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Known issues
------------

  Here are the changes found in Patchwork_17858_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_exec_reloc@basic-write-gtt-active:
    - shard-tglb:         [PASS][1] -> [DMESG-WARN][2] ([i915#402])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb6/igt@gem_exec_reloc@basic-write-gtt-active.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-tglb7/igt@gem_exec_reloc@basic-write-gtt-active.html

  * igt@gem_sync@basic-all:
    - shard-glk:          [PASS][3] -> [DMESG-WARN][4] ([i915#118] / [i915#95])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk6/igt@gem_sync@basic-all.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-glk4/igt@gem_sync@basic-all.html

  * igt@gem_tiled_partial_pwrite_pread@writes-after-reads:
    - shard-apl:          [PASS][5] -> [DMESG-WARN][6] ([i915#95]) +19 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@gem_tiled_partial_pwrite_pread@writes-after-reads.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl3/igt@gem_tiled_partial_pwrite_pread@writes-after-reads.html

  * igt@i915_suspend@debugfs-reader:
    - shard-skl:          [PASS][7] -> [INCOMPLETE][8] ([i915#69])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl6/igt@i915_suspend@debugfs-reader.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl6/igt@i915_suspend@debugfs-reader.html

  * igt@kms_big_fb@x-tiled-32bpp-rotate-180:
    - shard-skl:          [PASS][9] -> [DMESG-WARN][10] ([i915#1982]) +10 similar issues
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl1/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl2/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html

  * igt@kms_big_fb@y-tiled-32bpp-rotate-90:
    - shard-apl:          [PASS][11] -> [DMESG-WARN][12] ([i915#1982]) +2 similar issues
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl4/igt@kms_big_fb@y-tiled-32bpp-rotate-90.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl1/igt@kms_big_fb@y-tiled-32bpp-rotate-90.html

  * igt@kms_cursor_crc@pipe-b-cursor-suspend:
    - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#180])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl1/igt@kms_cursor_crc@pipe-b-cursor-suspend.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl1/igt@kms_cursor_crc@pipe-b-cursor-suspend.html

  * igt@kms_cursor_legacy@cursorb-vs-flipa-toggle:
    - shard-glk:          [PASS][15] -> [DMESG-FAIL][16] ([i915#1925] / [i915#1926])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk9/igt@kms_cursor_legacy@cursorb-vs-flipa-toggle.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-glk6/igt@kms_cursor_legacy@cursorb-vs-flipa-toggle.html

  * igt@kms_cursor_legacy@pipe-b-torture-move:
    - shard-iclb:         [PASS][17] -> [DMESG-WARN][18] ([i915#128])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb1/igt@kms_cursor_legacy@pipe-b-torture-move.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-iclb4/igt@kms_cursor_legacy@pipe-b-torture-move.html

  * igt@kms_flip_tiling@flip-yf-tiled:
    - shard-skl:          [PASS][19] -> [FAIL][20] ([fdo#108145])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl7/igt@kms_flip_tiling@flip-yf-tiled.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl5/igt@kms_flip_tiling@flip-yf-tiled.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-draw-mmap-wc:
    - shard-snb:          [PASS][21] -> [SKIP][22] ([fdo#109271])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-snb1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-draw-mmap-wc.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-snb6/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-draw-mmap-wc.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-pri-shrfb-draw-mmap-wc:
    - shard-iclb:         [PASS][23] -> [DMESG-WARN][24] ([i915#1982])
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb8/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-pri-shrfb-draw-mmap-wc.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-iclb5/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-pri-shrfb-draw-mmap-wc.html

  * igt@kms_frontbuffer_tracking@fbc-badstride:
    - shard-glk:          [PASS][25] -> [DMESG-WARN][26] ([i915#1982]) +1 similar issue
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk4/igt@kms_frontbuffer_tracking@fbc-badstride.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-glk5/igt@kms_frontbuffer_tracking@fbc-badstride.html

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-move:
    - shard-tglb:         [PASS][27] -> [DMESG-WARN][28] ([i915#1982]) +1 similar issue
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb5/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-move.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-tglb3/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-move.html

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-draw-mmap-cpu:
    - shard-skl:          [PASS][29] -> [FAIL][30] ([i915#49])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl7/igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-draw-mmap-cpu.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl5/igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-draw-mmap-cpu.html

  * igt@kms_hdr@bpc-switch-dpms:
    - shard-skl:          [PASS][31] -> [FAIL][32] ([i915#1188]) +1 similar issue
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl9/igt@kms_hdr@bpc-switch-dpms.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl8/igt@kms_hdr@bpc-switch-dpms.html

  * igt@kms_plane@plane-panning-bottom-right-suspend-pipe-a-planes:
    - shard-kbl:          [PASS][33] -> [DMESG-WARN][34] ([i915#180]) +2 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl4/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-a-planes.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-kbl7/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-a-planes.html

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min:
    - shard-skl:          [PASS][35] -> [FAIL][36] ([fdo#108145] / [i915#265]) +1 similar issue
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl7/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl5/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html

  * igt@kms_psr@psr2_primary_page_flip:
    - shard-iclb:         [PASS][37] -> [SKIP][38] ([fdo#109441]) +1 similar issue
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb2/igt@kms_psr@psr2_primary_page_flip.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-iclb8/igt@kms_psr@psr2_primary_page_flip.html

  * igt@kms_setmode@basic:
    - shard-apl:          [PASS][39] -> [FAIL][40] ([i915#31])
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl6/igt@kms_setmode@basic.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl3/igt@kms_setmode@basic.html

  * igt@syncobj_wait@single-wait-all-signaled:
    - shard-kbl:          [PASS][41] -> [DMESG-WARN][42] ([i915#93] / [i915#95]) +1 similar issue
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl7/igt@syncobj_wait@single-wait-all-signaled.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-kbl4/igt@syncobj_wait@single-wait-all-signaled.html

  
#### Possible fixes ####

  * igt@gem_exec_whisper@basic-contexts-forked-all:
    - shard-glk:          [DMESG-WARN][43] ([i915#118] / [i915#95]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk7/igt@gem_exec_whisper@basic-contexts-forked-all.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-glk9/igt@gem_exec_whisper@basic-contexts-forked-all.html

  * igt@gem_workarounds@suspend-resume-context:
    - shard-apl:          [DMESG-WARN][45] ([i915#180]) -> [PASS][46] +2 similar issues
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl6/igt@gem_workarounds@suspend-resume-context.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl7/igt@gem_workarounds@suspend-resume-context.html

  * igt@kms_big_fb@y-tiled-8bpp-rotate-0:
    - shard-apl:          [DMESG-WARN][47] ([i915#1982]) -> [PASS][48] +1 similar issue
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@kms_big_fb@y-tiled-8bpp-rotate-0.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl3/igt@kms_big_fb@y-tiled-8bpp-rotate-0.html

  * igt@kms_cursor_crc@pipe-a-cursor-256x256-onscreen:
    - shard-tglb:         [DMESG-WARN][49] ([i915#402]) -> [PASS][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb2/igt@kms_cursor_crc@pipe-a-cursor-256x256-onscreen.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-tglb8/igt@kms_cursor_crc@pipe-a-cursor-256x256-onscreen.html

  * igt@kms_cursor_edge_walk@pipe-a-64x64-top-edge:
    - shard-apl:          [DMESG-WARN][51] ([i915#95]) -> [PASS][52] +8 similar issues
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl1/igt@kms_cursor_edge_walk@pipe-a-64x64-top-edge.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl2/igt@kms_cursor_edge_walk@pipe-a-64x64-top-edge.html

  * {igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1}:
    - shard-skl:          [FAIL][53] ([i915#46]) -> [PASS][54]
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl5/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl2/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html

  * {igt@kms_flip@plain-flip-fb-recreate-interruptible@a-dp1}:
    - shard-kbl:          [DMESG-WARN][55] ([i915#1982]) -> [PASS][56]
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl1/igt@kms_flip@plain-flip-fb-recreate-interruptible@a-dp1.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-kbl2/igt@kms_flip@plain-flip-fb-recreate-interruptible@a-dp1.html

  * igt@kms_frontbuffer_tracking@fbc-suspend:
    - shard-kbl:          [DMESG-WARN][57] ([i915#93] / [i915#95]) -> [PASS][58] +1 similar issue
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-suspend.html

  * igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes:
    - shard-skl:          [INCOMPLETE][59] ([i915#69]) -> [PASS][60]
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl8/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl9/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes.html

  * igt@kms_plane@plane-position-hole-pipe-a-planes:
    - shard-skl:          [DMESG-WARN][61] ([i915#1982]) -> [PASS][62] +10 similar issues
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl4/igt@kms_plane@plane-position-hole-pipe-a-planes.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl4/igt@kms_plane@plane-position-hole-pipe-a-planes.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [FAIL][63] ([fdo#108145] / [i915#265]) -> [PASS][64]
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl2/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl8/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping:
    - shard-iclb:         [DMESG-WARN][65] ([i915#1982]) -> [PASS][66] +1 similar issue
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb3/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-iclb3/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html

  * igt@kms_psr2_su@page_flip:
    - shard-iclb:         [SKIP][67] ([fdo#109642] / [fdo#111068]) -> [PASS][68]
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb1/igt@kms_psr2_su@page_flip.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-iclb2/igt@kms_psr2_su@page_flip.html

  * igt@kms_psr@psr2_cursor_mmap_gtt:
    - shard-iclb:         [SKIP][69] ([fdo#109441]) -> [PASS][70]
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb6/igt@kms_psr@psr2_cursor_mmap_gtt.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-iclb2/igt@kms_psr@psr2_cursor_mmap_gtt.html

  * igt@kms_setmode@basic:
    - shard-skl:          [FAIL][71] ([i915#31]) -> [PASS][72]
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl8/igt@kms_setmode@basic.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-skl5/igt@kms_setmode@basic.html

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-kbl:          [DMESG-WARN][73] ([i915#180]) -> [PASS][74] +5 similar issues
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl3/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-kbl6/igt@kms_vblank@pipe-a-ts-continuation-suspend.html

  * {igt@perf@blocking-parameterized}:
    - shard-tglb:         [FAIL][75] ([i915#1542]) -> [PASS][76]
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb7/igt@perf@blocking-parameterized.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-tglb2/igt@perf@blocking-parameterized.html

  
#### Warnings ####

  * igt@kms_content_protection@atomic:
    - shard-apl:          [TIMEOUT][77] ([i915#1319] / [i915#1635]) -> [TIMEOUT][78] ([i915#1319])
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl6/igt@kms_content_protection@atomic.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl2/igt@kms_content_protection@atomic.html

  * igt@kms_content_protection@atomic-dpms:
    - shard-apl:          [TIMEOUT][79] ([i915#1319]) -> [TIMEOUT][80] ([i915#1319] / [i915#1635])
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl1/igt@kms_content_protection@atomic-dpms.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl4/igt@kms_content_protection@atomic-dpms.html

  * igt@kms_content_protection@legacy:
    - shard-apl:          [TIMEOUT][81] ([i915#1319] / [i915#1635]) -> [FAIL][82] ([fdo#110321] / [fdo#110336])
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl3/igt@kms_content_protection@legacy.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl6/igt@kms_content_protection@legacy.html

  * igt@kms_content_protection@srm:
    - shard-apl:          [FAIL][83] ([fdo#110321]) -> [TIMEOUT][84] ([i915#1319] / [i915#1635])
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@kms_content_protection@srm.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl4/igt@kms_content_protection@srm.html

  * igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc:
    - shard-tglb:         [DMESG-WARN][85] ([i915#1982]) -> [DMESG-WARN][86] ([i915#1982] / [i915#402])
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb7/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc.html
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-tglb7/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-mmap-cpu:
    - shard-apl:          [DMESG-FAIL][87] ([i915#49] / [i915#95]) -> [FAIL][88] ([i915#49])
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-mmap-cpu.html
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/shard-apl4/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-draw-mmap-cpu.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#103375]: https://bugs.freedesktop.org/show_bug.cgi?id=103375
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#109642]: https://bugs.freedesktop.org/show_bug.cgi?id=109642
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
  [fdo#111068]: https://bugs.freedesktop.org/show_bug.cgi?id=111068
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1925]: https://gitlab.freedesktop.org/drm/intel/issues/1925
  [i915#1926]: https://gitlab.freedesktop.org/drm/intel/issues/1926
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#58]: https://gitlab.freedesktop.org/drm/intel/issues/58
  [i915#69]: https://gitlab.freedesktop.org/drm/intel/issues/69
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
  [k.org#198133]: https://bugzilla.kernel.org/show_bug.cgi?id=198133


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * Linux: CI_DRM_8579 -> Patchwork_17858

  CI-20190529: 20190529
  CI_DRM_8579: 289eb12c88c49a4ac8d325dc457d8878c7f5bdc0 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5694: a9b6c4c74bfddf7d3d2da3be08804fe315945cea @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17858: 7a10916bbf7e8b6d18f552c3d6135250da4caa20 @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17858/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.IGT: success for series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev2)

[Patchwork]

== Series Details ==

Series: series starting with [1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev2)
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8579_full -> Patchwork_17861_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Known issues
------------

  Here are the changes found in Patchwork_17861_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_tiled_partial_pwrite_pread@writes-after-reads:
    - shard-apl:          [PASS][1] -> [DMESG-WARN][2] ([i915#95]) +16 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@gem_tiled_partial_pwrite_pread@writes-after-reads.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl3/igt@gem_tiled_partial_pwrite_pread@writes-after-reads.html

  * igt@i915_suspend@fence-restore-tiled2untiled:
    - shard-apl:          [PASS][3] -> [DMESG-WARN][4] ([i915#180]) +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl1/igt@i915_suspend@fence-restore-tiled2untiled.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl6/igt@i915_suspend@fence-restore-tiled2untiled.html

  * igt@kms_color@pipe-c-ctm-0-25:
    - shard-skl:          [PASS][5] -> [DMESG-WARN][6] ([i915#1982]) +9 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl4/igt@kms_color@pipe-c-ctm-0-25.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl2/igt@kms_color@pipe-c-ctm-0-25.html

  * igt@kms_cursor_crc@pipe-c-cursor-size-change:
    - shard-skl:          [PASS][7] -> [FAIL][8] ([i915#54])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl2/igt@kms_cursor_crc@pipe-c-cursor-size-change.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl1/igt@kms_cursor_crc@pipe-c-cursor-size-change.html

  * igt@kms_cursor_legacy@cursorb-vs-flipa-toggle:
    - shard-glk:          [PASS][9] -> [DMESG-FAIL][10] ([i915#1925] / [i915#1926])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk9/igt@kms_cursor_legacy@cursorb-vs-flipa-toggle.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-glk7/igt@kms_cursor_legacy@cursorb-vs-flipa-toggle.html

  * igt@kms_flip_tiling@flip-yf-tiled:
    - shard-skl:          [PASS][11] -> [FAIL][12] ([fdo#108145])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl7/igt@kms_flip_tiling@flip-yf-tiled.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl7/igt@kms_flip_tiling@flip-yf-tiled.html

  * igt@kms_frontbuffer_tracking@fbc-badstride:
    - shard-glk:          [PASS][13] -> [DMESG-WARN][14] ([i915#1982])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk4/igt@kms_frontbuffer_tracking@fbc-badstride.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-glk5/igt@kms_frontbuffer_tracking@fbc-badstride.html

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-draw-mmap-cpu:
    - shard-skl:          [PASS][15] -> [FAIL][16] ([i915#49])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl7/igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-draw-mmap-cpu.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl7/igt@kms_frontbuffer_tracking@psr-1p-primscrn-cur-indfb-draw-mmap-cpu.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence:
    - shard-skl:          [PASS][17] -> [FAIL][18] ([i915#53])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl2/igt@kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl1/igt@kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence.html

  * igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min:
    - shard-skl:          [PASS][19] -> [FAIL][20] ([fdo#108145] / [i915#265])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl7/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl7/igt@kms_plane_alpha_blend@pipe-a-constant-alpha-min.html

  * igt@kms_setmode@basic:
    - shard-apl:          [PASS][21] -> [FAIL][22] ([i915#31])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl6/igt@kms_setmode@basic.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl8/igt@kms_setmode@basic.html

  * igt@syncobj_wait@single-wait-all-signaled:
    - shard-kbl:          [PASS][23] -> [DMESG-WARN][24] ([i915#93] / [i915#95]) +1 similar issue
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl7/igt@syncobj_wait@single-wait-all-signaled.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-kbl7/igt@syncobj_wait@single-wait-all-signaled.html

  
#### Possible fixes ####

  * {igt@gem_ctx_isolation@preservation-s3@bcs0}:
    - shard-kbl:          [FAIL][25] ([fdo#103375]) -> [PASS][26]
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl6/igt@gem_ctx_isolation@preservation-s3@bcs0.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-kbl6/igt@gem_ctx_isolation@preservation-s3@bcs0.html

  * {igt@gem_ctx_isolation@preservation-s3@vcs0}:
    - shard-kbl:          [INCOMPLETE][27] ([i915#1780]) -> [PASS][28]
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl6/igt@gem_ctx_isolation@preservation-s3@vcs0.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-kbl6/igt@gem_ctx_isolation@preservation-s3@vcs0.html

  * {igt@gem_exec_reloc@basic-concurrent0}:
    - shard-glk:          [FAIL][29] ([i915#1930]) -> [PASS][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk4/igt@gem_exec_reloc@basic-concurrent0.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-glk5/igt@gem_exec_reloc@basic-concurrent0.html

  * {igt@gem_exec_schedule@implicit-write-read@rcs0}:
    - shard-snb:          [INCOMPLETE][31] ([i915#82]) -> [PASS][32]
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-snb5/igt@gem_exec_schedule@implicit-write-read@rcs0.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-snb4/igt@gem_exec_schedule@implicit-write-read@rcs0.html

  * igt@gem_exec_whisper@basic-contexts-forked-all:
    - shard-glk:          [DMESG-WARN][33] ([i915#118] / [i915#95]) -> [PASS][34]
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-glk7/igt@gem_exec_whisper@basic-contexts-forked-all.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-glk2/igt@gem_exec_whisper@basic-contexts-forked-all.html

  * igt@gem_workarounds@suspend-resume-context:
    - shard-apl:          [DMESG-WARN][35] ([i915#180]) -> [PASS][36] +2 similar issues
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl6/igt@gem_workarounds@suspend-resume-context.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl3/igt@gem_workarounds@suspend-resume-context.html

  * igt@i915_suspend@sysfs-reader:
    - shard-apl:          [TIMEOUT][37] ([i915#1635]) -> [PASS][38] +2 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl4/igt@i915_suspend@sysfs-reader.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl7/igt@i915_suspend@sysfs-reader.html

  * igt@kms_big_fb@y-tiled-8bpp-rotate-0:
    - shard-apl:          [DMESG-WARN][39] ([i915#1982]) -> [PASS][40] +1 similar issue
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@kms_big_fb@y-tiled-8bpp-rotate-0.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl3/igt@kms_big_fb@y-tiled-8bpp-rotate-0.html

  * igt@kms_cursor_crc@pipe-a-cursor-256x256-onscreen:
    - shard-tglb:         [DMESG-WARN][41] ([i915#402]) -> [PASS][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb2/igt@kms_cursor_crc@pipe-a-cursor-256x256-onscreen.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-tglb1/igt@kms_cursor_crc@pipe-a-cursor-256x256-onscreen.html

  * {igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1}:
    - shard-skl:          [FAIL][43] ([i915#46]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl5/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl5/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html

  * igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc:
    - shard-kbl:          [DMESG-WARN][45] ([i915#93] / [i915#95]) -> [PASS][46] +1 similar issue
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-kbl3/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc.html
    - shard-tglb:         [DMESG-WARN][47] ([i915#1982]) -> [PASS][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb7/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-tglb3/igt@kms_frontbuffer_tracking@fbc-1p-offscren-pri-shrfb-draw-mmap-wc.html

  * igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes:
    - shard-skl:          [INCOMPLETE][49] ([i915#69]) -> [PASS][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl8/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl4/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-c-planes.html

  * igt@kms_plane@plane-position-hole-pipe-a-planes:
    - shard-skl:          [DMESG-WARN][51] ([i915#1982]) -> [PASS][52] +8 similar issues
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-skl4/igt@kms_plane@plane-position-hole-pipe-a-planes.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-skl2/igt@kms_plane@plane-position-hole-pipe-a-planes.html

  * igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping:
    - shard-iclb:         [DMESG-WARN][53] ([i915#1982]) -> [PASS][54] +1 similar issue
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-iclb3/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-iclb5/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-kbl:          [DMESG-WARN][55] ([i915#180]) -> [PASS][56] +5 similar issues
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl3/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-kbl4/igt@kms_vblank@pipe-a-ts-continuation-suspend.html

  * {igt@perf@blocking-parameterized}:
    - shard-tglb:         [FAIL][57] ([i915#1542]) -> [PASS][58]
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb7/igt@perf@blocking-parameterized.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-tglb7/igt@perf@blocking-parameterized.html

  * igt@vgem_basic@dmabuf-mmap:
    - shard-apl:          [DMESG-WARN][59] ([i915#95]) -> [PASS][60] +6 similar issues
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@vgem_basic@dmabuf-mmap.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl3/igt@vgem_basic@dmabuf-mmap.html

  
#### Warnings ####

  * igt@gem_ctx_bad_destroy@invalid-pad:
    - shard-apl:          [TIMEOUT][61] ([i915#1635]) -> [DMESG-WARN][62] ([i915#95])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl4/igt@gem_ctx_bad_destroy@invalid-pad.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl7/igt@gem_ctx_bad_destroy@invalid-pad.html

  * igt@i915_pm_dc@dc6-dpms:
    - shard-tglb:         [FAIL][63] ([i915#454]) -> [SKIP][64] ([i915#468])
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-tglb5/igt@i915_pm_dc@dc6-dpms.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-tglb2/igt@i915_pm_dc@dc6-dpms.html

  * igt@i915_pm_rpm@sysfs-read:
    - shard-snb:          [SKIP][65] ([fdo#109271]) -> [INCOMPLETE][66] ([i915#82])
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-snb4/igt@i915_pm_rpm@sysfs-read.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-snb4/igt@i915_pm_rpm@sysfs-read.html

  * igt@kms_content_protection@atomic:
    - shard-apl:          [TIMEOUT][67] ([i915#1319] / [i915#1635]) -> [TIMEOUT][68] ([i915#1319])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl6/igt@kms_content_protection@atomic.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl8/igt@kms_content_protection@atomic.html

  * igt@kms_content_protection@atomic-dpms:
    - shard-apl:          [TIMEOUT][69] ([i915#1319]) -> [TIMEOUT][70] ([i915#1319] / [i915#1635])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl1/igt@kms_content_protection@atomic-dpms.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl6/igt@kms_content_protection@atomic-dpms.html

  * igt@kms_content_protection@srm:
    - shard-apl:          [FAIL][71] ([fdo#110321]) -> [TIMEOUT][72] ([i915#1319] / [i915#1635])
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl2/igt@kms_content_protection@srm.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl8/igt@kms_content_protection@srm.html

  * igt@kms_frontbuffer_tracking@fbc-suspend:
    - shard-kbl:          [DMESG-WARN][73] ([i915#93] / [i915#95]) -> [DMESG-WARN][74] ([i915#180] / [i915#93] / [i915#95])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-kbl3/igt@kms_frontbuffer_tracking@fbc-suspend.html

  * igt@kms_vblank@pipe-d-query-idle-hang:
    - shard-apl:          [TIMEOUT][75] ([i915#1635] / [i915#1640]) -> [SKIP][76] ([fdo#109271])
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8579/shard-apl4/igt@kms_vblank@pipe-d-query-idle-hang.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/shard-apl7/igt@kms_vblank@pipe-d-query-idle-hang.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#103375]: https://bugs.freedesktop.org/show_bug.cgi?id=103375
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#1640]: https://gitlab.freedesktop.org/drm/intel/issues/1640
  [i915#1780]: https://gitlab.freedesktop.org/drm/intel/issues/1780
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1925]: https://gitlab.freedesktop.org/drm/intel/issues/1925
  [i915#1926]: https://gitlab.freedesktop.org/drm/intel/issues/1926
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#198]: https://gitlab.freedesktop.org/drm/intel/issues/198
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#454]: https://gitlab.freedesktop.org/drm/intel/issues/454
  [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
  [i915#468]: https://gitlab.freedesktop.org/drm/intel/issues/468
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#53]: https://gitlab.freedesktop.org/drm/intel/issues/53
  [i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
  [i915#69]: https://gitlab.freedesktop.org/drm/intel/issues/69
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
  [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * Linux: CI_DRM_8579 -> Patchwork_17861

  CI-20190529: 20190529
  CI_DRM_8579: 289eb12c88c49a4ac8d325dc457d8878c7f5bdc0 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5694: a9b6c4c74bfddf7d3d2da3be08804fe315945cea @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17861: 10ec0f0a95d1ed7b600df217f021788844964bc8 @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17861/index.html
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Re: [Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Ville Syrjälä]

On Thu, Jun 04, 2020 at 12:10:38AM +0300, Imre Deak wrote:
> Currently MST on a port can get enabled/disabled from the hotplug work
> and get disabled from the short pulse work in a racy way. Fix this by
> relying on the MST state checking in the hotplug work and just schedule
> a hotplug work from the short pulse handler if some problem happened
> during the MST interrupt handling.
> 
> This removes the explicit MST disabling in case of an AUX failure, but
> if AUX fails, then probably the detection will also fail during the
> scheduled hotplug work and it's not guaranteed that we'll see
> intermittent errors anyway.
> 
> While at it also simplify the error checking of the MST interrupt
> handler.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
>  1 file changed, 4 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 55fda074c0ad..befbcacddaa1 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
>  		}
>  	}
>  
> -	return need_retrain;
> +	return need_retrain ? -EINVAL : 0;
>  }
>  
>  static bool
> @@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
>  	}
>  
>  	if (intel_dp->is_mst) {
> -		switch (intel_dp_check_mst_status(intel_dp)) {
> -		case -EINVAL:
> -			/*
> -			 * If we were in MST mode, and device is not
> -			 * there, get out of MST mode
> -			 */
> -			drm_dbg_kms(&i915->drm,
> -				    "MST device may have disappeared %d vs %d\n",
> -				    intel_dp->is_mst,
> -				    intel_dp->mst_mgr.mst_state);
> -			intel_dp->is_mst = false;
> -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> -							intel_dp->is_mst);
> -
> -			return IRQ_NONE;
> -		case 1:
> -			return IRQ_NONE;
> -		default:
> -			break;
> -		}
> -	}
> -
> -	if (!intel_dp->is_mst) {
> -		bool handled;
> -
> -		handled = intel_dp_short_pulse(intel_dp);
> -
> -		if (!handled)
> +		if (intel_dp_check_mst_status(intel_dp) < 0)
>  			return IRQ_NONE;

Since we no longer need the tristate return, can you follow up
with a conversion to bool return? I'd vote to make it match the
semantics of intel_dp_short_pulse() so we get one step
closer to unifying the hpd_irq handling across the board.

> +	} else if (!intel_dp_short_pulse(intel_dp)) {
> +		return IRQ_NONE;
>  	}
>  
>  	return IRQ_HANDLED;
> -- 
> 2.23.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Ville Syrjälä]

On Thu, Jun 04, 2020 at 12:10:38AM +0300, Imre Deak wrote:
> Currently MST on a port can get enabled/disabled from the hotplug work
> and get disabled from the short pulse work in a racy way. Fix this by
> relying on the MST state checking in the hotplug work and just schedule
> a hotplug work from the short pulse handler if some problem happened
> during the MST interrupt handling.
> 
> This removes the explicit MST disabling in case of an AUX failure, but
> if AUX fails, then probably the detection will also fail during the
> scheduled hotplug work and it's not guaranteed that we'll see
> intermittent errors anyway.
> 
> While at it also simplify the error checking of the MST interrupt
> handler.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
>  1 file changed, 4 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 55fda074c0ad..befbcacddaa1 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
>  		}
>  	}
>  
> -	return need_retrain;
> +	return need_retrain ? -EINVAL : 0;
>  }
>  
>  static bool
> @@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
>  	}
>  
>  	if (intel_dp->is_mst) {
> -		switch (intel_dp_check_mst_status(intel_dp)) {
> -		case -EINVAL:
> -			/*
> -			 * If we were in MST mode, and device is not
> -			 * there, get out of MST mode
> -			 */
> -			drm_dbg_kms(&i915->drm,
> -				    "MST device may have disappeared %d vs %d\n",
> -				    intel_dp->is_mst,
> -				    intel_dp->mst_mgr.mst_state);
> -			intel_dp->is_mst = false;
> -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> -							intel_dp->is_mst);
> -
> -			return IRQ_NONE;
> -		case 1:
> -			return IRQ_NONE;
> -		default:
> -			break;
> -		}
> -	}
> -
> -	if (!intel_dp->is_mst) {
> -		bool handled;
> -
> -		handled = intel_dp_short_pulse(intel_dp);
> -
> -		if (!handled)
> +		if (intel_dp_check_mst_status(intel_dp) < 0)
>  			return IRQ_NONE;

Since we no longer need the tristate return, can you follow up
with a conversion to bool return? I'd vote to make it match the
semantics of intel_dp_short_pulse() so we get one step
closer to unifying the hpd_irq handling across the board.

> +	} else if (!intel_dp_short_pulse(intel_dp)) {
> +		return IRQ_NONE;
>  	}
>  
>  	return IRQ_HANDLED;
> -- 
> 2.23.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel
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Re: [Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

On Thu, Jun 04, 2020 at 05:55:30PM +0300, Ville Syrjälä wrote:
> On Thu, Jun 04, 2020 at 12:10:38AM +0300, Imre Deak wrote:
> > Currently MST on a port can get enabled/disabled from the hotplug work
> > and get disabled from the short pulse work in a racy way. Fix this by
> > relying on the MST state checking in the hotplug work and just schedule
> > a hotplug work from the short pulse handler if some problem happened
> > during the MST interrupt handling.
> > 
> > This removes the explicit MST disabling in case of an AUX failure, but
> > if AUX fails, then probably the detection will also fail during the
> > scheduled hotplug work and it's not guaranteed that we'll see
> > intermittent errors anyway.
> > 
> > While at it also simplify the error checking of the MST interrupt
> > handler.
> > 
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
> >  1 file changed, 4 insertions(+), 29 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> > index 55fda074c0ad..befbcacddaa1 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> > @@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
> >  		}
> >  	}
> >  
> > -	return need_retrain;
> > +	return need_retrain ? -EINVAL : 0;
> >  }
> >  
> >  static bool
> > @@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
> >  	}
> >  
> >  	if (intel_dp->is_mst) {
> > -		switch (intel_dp_check_mst_status(intel_dp)) {
> > -		case -EINVAL:
> > -			/*
> > -			 * If we were in MST mode, and device is not
> > -			 * there, get out of MST mode
> > -			 */
> > -			drm_dbg_kms(&i915->drm,
> > -				    "MST device may have disappeared %d vs %d\n",
> > -				    intel_dp->is_mst,
> > -				    intel_dp->mst_mgr.mst_state);
> > -			intel_dp->is_mst = false;
> > -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> > -							intel_dp->is_mst);
> > -
> > -			return IRQ_NONE;
> > -		case 1:
> > -			return IRQ_NONE;
> > -		default:
> > -			break;
> > -		}
> > -	}
> > -
> > -	if (!intel_dp->is_mst) {
> > -		bool handled;
> > -
> > -		handled = intel_dp_short_pulse(intel_dp);
> > -
> > -		if (!handled)
> > +		if (intel_dp_check_mst_status(intel_dp) < 0)
> >  			return IRQ_NONE;
> 
> Since we no longer need the tristate return, can you follow up
> with a conversion to bool return? I'd vote to make it match the
> semantics of intel_dp_short_pulse() so we get one step
> closer to unifying the hpd_irq handling across the board.

Ok, makes sense.

> 
> > +	} else if (!intel_dp_short_pulse(intel_dp)) {
> > +		return IRQ_NONE;
> >  	}
> >  
> >  	return IRQ_HANDLED;
> > -- 
> > 2.23.1
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Ville Syrjälä
> Intel
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Re: [Intel-gfx] [PATCH 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

On Thu, Jun 04, 2020 at 05:55:30PM +0300, Ville Syrjälä wrote:
> On Thu, Jun 04, 2020 at 12:10:38AM +0300, Imre Deak wrote:
> > Currently MST on a port can get enabled/disabled from the hotplug work
> > and get disabled from the short pulse work in a racy way. Fix this by
> > relying on the MST state checking in the hotplug work and just schedule
> > a hotplug work from the short pulse handler if some problem happened
> > during the MST interrupt handling.
> > 
> > This removes the explicit MST disabling in case of an AUX failure, but
> > if AUX fails, then probably the detection will also fail during the
> > scheduled hotplug work and it's not guaranteed that we'll see
> > intermittent errors anyway.
> > 
> > While at it also simplify the error checking of the MST interrupt
> > handler.
> > 
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_dp.c | 33 +++----------------------
> >  1 file changed, 4 insertions(+), 29 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> > index 55fda074c0ad..befbcacddaa1 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> > @@ -5604,7 +5604,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
> >  		}
> >  	}
> >  
> > -	return need_retrain;
> > +	return need_retrain ? -EINVAL : 0;
> >  }
> >  
> >  static bool
> > @@ -7255,35 +7255,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
> >  	}
> >  
> >  	if (intel_dp->is_mst) {
> > -		switch (intel_dp_check_mst_status(intel_dp)) {
> > -		case -EINVAL:
> > -			/*
> > -			 * If we were in MST mode, and device is not
> > -			 * there, get out of MST mode
> > -			 */
> > -			drm_dbg_kms(&i915->drm,
> > -				    "MST device may have disappeared %d vs %d\n",
> > -				    intel_dp->is_mst,
> > -				    intel_dp->mst_mgr.mst_state);
> > -			intel_dp->is_mst = false;
> > -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> > -							intel_dp->is_mst);
> > -
> > -			return IRQ_NONE;
> > -		case 1:
> > -			return IRQ_NONE;
> > -		default:
> > -			break;
> > -		}
> > -	}
> > -
> > -	if (!intel_dp->is_mst) {
> > -		bool handled;
> > -
> > -		handled = intel_dp_short_pulse(intel_dp);
> > -
> > -		if (!handled)
> > +		if (intel_dp_check_mst_status(intel_dp) < 0)
> >  			return IRQ_NONE;
> 
> Since we no longer need the tristate return, can you follow up
> with a conversion to bool return? I'd vote to make it match the
> semantics of intel_dp_short_pulse() so we get one step
> closer to unifying the hpd_irq handling across the board.

Ok, makes sense.

> 
> > +	} else if (!intel_dp_short_pulse(intel_dp)) {
> > +		return IRQ_NONE;
> >  	}
> >  
> >  	return IRQ_HANDLED;
> > -- 
> > 2.23.1
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Ville Syrjälä
> Intel
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[PATCH v2 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

Currently MST on a port can get enabled/disabled from the hotplug work
and get disabled from the short pulse work in a racy way. Fix this by
relying on the MST state checking in the hotplug work and just schedule
a hotplug work from the short pulse handler if some problem happened
during the MST interrupt handling.

This removes the explicit MST disabling in case of an AUX failure, but
if AUX fails, then probably the detection will also fail during the
scheduled hotplug work and it's not guaranteed that we'll see
intermittent errors anyway.

While at it also simplify the error checking of the MST interrupt
handler.

v2:
- Convert intel_dp_check_mst_status() to return bool. (Ville)
- Change the intel_dp->is_mst check to an assert, since after this patch
  the condition can't change after we checked it previously.
- Document the return value from intel_dp_check_mst_status().

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 67 ++++++++++---------------
 1 file changed, 27 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 55fda074c0ad..4b6e7cf577dd 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5556,35 +5556,47 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
 			    "Could not write test response to sink\n");
 }
 
-static int
+/**
+ * intel_dp_check_mst_status - service any pending MST interrupts, check link status
+ * @intel_dp: Intel DP struct
+ *
+ * Read any pending MST interrupts, call MST core to handle these and ack the
+ * interrupts. Check if the main and AUX link state is ok.
+ *
+ * Returns:
+ * - %true if pending interrupts were serviced (or no interrupts were
+ *   pending) w/o detecting an error condition.
+ * - %false if an error condition - like AUX failure or a loss of link - is
+ *   detected, which needs servicing from the hotplug work.
+ */
+static bool
 intel_dp_check_mst_status(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	bool need_retrain = false;
-
-	if (!intel_dp->is_mst)
-		return -EINVAL;
+	bool link_ok = true;
 
+	drm_WARN_ON_ONCE(&i915->drm, !intel_dp->is_mst);
 	drm_WARN_ON_ONCE(&i915->drm, intel_dp->active_mst_links < 0);
 
 	for (;;) {
 		u8 esi[DP_DPRX_ESI_LEN] = {};
-		bool bret, handled;
+		bool handled;
 		int retry;
 
-		bret = intel_dp_get_sink_irq_esi(intel_dp, esi);
-		if (!bret) {
+		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
 			drm_dbg_kms(&i915->drm,
 				    "failed to get ESI - device may have failed\n");
-			return -EINVAL;
+			link_ok = false;
+
+			break;
 		}
 
 		/* check link status - esi[10] = 0x200c */
-		if (intel_dp->active_mst_links > 0 && !need_retrain &&
+		if (intel_dp->active_mst_links > 0 && link_ok &&
 		    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
 			drm_dbg_kms(&i915->drm,
 				    "channel EQ not ok, retraining\n");
-			need_retrain = true;
+			link_ok = false;
 		}
 
 		drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
@@ -5604,7 +5616,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		}
 	}
 
-	return need_retrain;
+	return link_ok;
 }
 
 static bool
@@ -7255,35 +7267,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	}
 
 	if (intel_dp->is_mst) {
-		switch (intel_dp_check_mst_status(intel_dp)) {
-		case -EINVAL:
-			/*
-			 * If we were in MST mode, and device is not
-			 * there, get out of MST mode
-			 */
-			drm_dbg_kms(&i915->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-
-			return IRQ_NONE;
-		case 1:
-			return IRQ_NONE;
-		default:
-			break;
-		}
-	}
-
-	if (!intel_dp->is_mst) {
-		bool handled;
-
-		handled = intel_dp_short_pulse(intel_dp);
-
-		if (!handled)
+		if (!intel_dp_check_mst_status(intel_dp))
 			return IRQ_NONE;
+	} else if (!intel_dp_short_pulse(intel_dp)) {
+		return IRQ_NONE;
 	}
 
 	return IRQ_HANDLED;
-- 
2.23.1

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[Intel-gfx] [PATCH v2 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

Currently MST on a port can get enabled/disabled from the hotplug work
and get disabled from the short pulse work in a racy way. Fix this by
relying on the MST state checking in the hotplug work and just schedule
a hotplug work from the short pulse handler if some problem happened
during the MST interrupt handling.

This removes the explicit MST disabling in case of an AUX failure, but
if AUX fails, then probably the detection will also fail during the
scheduled hotplug work and it's not guaranteed that we'll see
intermittent errors anyway.

While at it also simplify the error checking of the MST interrupt
handler.

v2:
- Convert intel_dp_check_mst_status() to return bool. (Ville)
- Change the intel_dp->is_mst check to an assert, since after this patch
  the condition can't change after we checked it previously.
- Document the return value from intel_dp_check_mst_status().

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 67 ++++++++++---------------
 1 file changed, 27 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 55fda074c0ad..4b6e7cf577dd 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5556,35 +5556,47 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
 			    "Could not write test response to sink\n");
 }
 
-static int
+/**
+ * intel_dp_check_mst_status - service any pending MST interrupts, check link status
+ * @intel_dp: Intel DP struct
+ *
+ * Read any pending MST interrupts, call MST core to handle these and ack the
+ * interrupts. Check if the main and AUX link state is ok.
+ *
+ * Returns:
+ * - %true if pending interrupts were serviced (or no interrupts were
+ *   pending) w/o detecting an error condition.
+ * - %false if an error condition - like AUX failure or a loss of link - is
+ *   detected, which needs servicing from the hotplug work.
+ */
+static bool
 intel_dp_check_mst_status(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	bool need_retrain = false;
-
-	if (!intel_dp->is_mst)
-		return -EINVAL;
+	bool link_ok = true;
 
+	drm_WARN_ON_ONCE(&i915->drm, !intel_dp->is_mst);
 	drm_WARN_ON_ONCE(&i915->drm, intel_dp->active_mst_links < 0);
 
 	for (;;) {
 		u8 esi[DP_DPRX_ESI_LEN] = {};
-		bool bret, handled;
+		bool handled;
 		int retry;
 
-		bret = intel_dp_get_sink_irq_esi(intel_dp, esi);
-		if (!bret) {
+		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
 			drm_dbg_kms(&i915->drm,
 				    "failed to get ESI - device may have failed\n");
-			return -EINVAL;
+			link_ok = false;
+
+			break;
 		}
 
 		/* check link status - esi[10] = 0x200c */
-		if (intel_dp->active_mst_links > 0 && !need_retrain &&
+		if (intel_dp->active_mst_links > 0 && link_ok &&
 		    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
 			drm_dbg_kms(&i915->drm,
 				    "channel EQ not ok, retraining\n");
-			need_retrain = true;
+			link_ok = false;
 		}
 
 		drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
@@ -5604,7 +5616,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		}
 	}
 
-	return need_retrain;
+	return link_ok;
 }
 
 static bool
@@ -7255,35 +7267,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	}
 
 	if (intel_dp->is_mst) {
-		switch (intel_dp_check_mst_status(intel_dp)) {
-		case -EINVAL:
-			/*
-			 * If we were in MST mode, and device is not
-			 * there, get out of MST mode
-			 */
-			drm_dbg_kms(&i915->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-
-			return IRQ_NONE;
-		case 1:
-			return IRQ_NONE;
-		default:
-			break;
-		}
-	}
-
-	if (!intel_dp->is_mst) {
-		bool handled;
-
-		handled = intel_dp_short_pulse(intel_dp);
-
-		if (!handled)
+		if (!intel_dp_check_mst_status(intel_dp))
 			return IRQ_NONE;
+	} else if (!intel_dp_short_pulse(intel_dp)) {
+		return IRQ_NONE;
 	}
 
 	return IRQ_HANDLED;
-- 
2.23.1

_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] [PATCH v3 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

Currently MST on a port can get enabled/disabled from the hotplug work
and get disabled from the short pulse work in a racy way. Fix this by
relying on the MST state checking in the hotplug work and just schedule
a hotplug work from the short pulse handler if some problem happened
during the MST interrupt handling.

This removes the explicit MST disabling in case of an AUX failure, but
if AUX fails, then probably the detection will also fail during the
scheduled hotplug work and it's not guaranteed that we'll see
intermittent errors anyway.

While at it also simplify the error checking of the MST interrupt
handler.

v2:
- Convert intel_dp_check_mst_status() to return bool. (Ville)
- Change the intel_dp->is_mst check to an assert, since after this patch
  the condition can't change after we checked it previously.
- Document the return value from intel_dp_check_mst_status().
v3:
- Remove the intel_dp->is_mst check from intel_dp_check_mst_status().
  There is no point in checking the same condition twice, even though
  there is a chance that the hotplug work running concurrently changes
  it.

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 66 ++++++++++---------------
 1 file changed, 26 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 7ef60af8308b..ade21157f29b 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5556,14 +5556,24 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
 			    "Could not write test response to sink\n");
 }
 
-static int
+/**
+ * intel_dp_check_mst_status - service any pending MST interrupts, check link status
+ * @intel_dp: Intel DP struct
+ *
+ * Read any pending MST interrupts, call MST core to handle these and ack the
+ * interrupts. Check if the main and AUX link state is ok.
+ *
+ * Returns:
+ * - %true if pending interrupts were serviced (or no interrupts were
+ *   pending) w/o detecting an error condition.
+ * - %false if an error condition - like AUX failure or a loss of link - is
+ *   detected, which needs servicing from the hotplug work.
+ */
+static bool
 intel_dp_check_mst_status(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	bool need_retrain = false;
-
-	if (!intel_dp->is_mst)
-		return -EINVAL;
+	bool link_ok = true;
 
 	drm_WARN_ON_ONCE(&i915->drm, intel_dp->active_mst_links < 0);
 
@@ -5591,22 +5601,23 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 
 	for (;;) {
 		u8 esi[DP_DPRX_ESI_LEN] = {};
-		bool bret, handled;
+		bool handled;
 		int retry;
 
-		bret = intel_dp_get_sink_irq_esi(intel_dp, esi);
-		if (!bret) {
+		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
 			drm_dbg_kms(&i915->drm,
 				    "failed to get ESI - device may have failed\n");
-			return -EINVAL;
+			link_ok = false;
+
+			break;
 		}
 
 		/* check link status - esi[10] = 0x200c */
-		if (intel_dp->active_mst_links > 0 && !need_retrain &&
+		if (intel_dp->active_mst_links > 0 && link_ok &&
 		    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
 			drm_dbg_kms(&i915->drm,
 				    "channel EQ not ok, retraining\n");
-			need_retrain = true;
+			link_ok = false;
 		}
 
 		drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
@@ -5626,7 +5637,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		}
 	}
 
-	return need_retrain;
+	return link_ok;
 }
 
 static bool
@@ -7277,35 +7288,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	}
 
 	if (intel_dp->is_mst) {
-		switch (intel_dp_check_mst_status(intel_dp)) {
-		case -EINVAL:
-			/*
-			 * If we were in MST mode, and device is not
-			 * there, get out of MST mode
-			 */
-			drm_dbg_kms(&i915->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-
-			return IRQ_NONE;
-		case 1:
-			return IRQ_NONE;
-		default:
-			break;
-		}
-	}
-
-	if (!intel_dp->is_mst) {
-		bool handled;
-
-		handled = intel_dp_short_pulse(intel_dp);
-
-		if (!handled)
+		if (!intel_dp_check_mst_status(intel_dp))
 			return IRQ_NONE;
+	} else if (!intel_dp_short_pulse(intel_dp)) {
+		return IRQ_NONE;
 	}
 
 	return IRQ_HANDLED;
-- 
2.23.1

_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] [PATCH RESEND v3 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

Currently MST on a port can get enabled/disabled from the hotplug work
and get disabled from the short pulse work in a racy way. Fix this by
relying on the MST state checking in the hotplug work and just schedule
a hotplug work from the short pulse handler if some problem happened
during the MST interrupt handling.

This removes the explicit MST disabling in case of an AUX failure, but
if AUX fails, then probably the detection will also fail during the
scheduled hotplug work and it's not guaranteed that we'll see
intermittent errors anyway.

While at it also simplify the error checking of the MST interrupt
handler.

v2:
- Convert intel_dp_check_mst_status() to return bool. (Ville)
- Change the intel_dp->is_mst check to an assert, since after this patch
  the condition can't change after we checked it previously.
- Document the return value from intel_dp_check_mst_status().
v3:
- Remove the intel_dp->is_mst check from intel_dp_check_mst_status().
  There is no point in checking the same condition twice, even though
  there is a chance that the hotplug work running concurrently changes
  it.

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 66 ++++++++++---------------
 1 file changed, 26 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 55fda074c0ad..42589cae766d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5556,35 +5556,46 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
 			    "Could not write test response to sink\n");
 }
 
-static int
+/**
+ * intel_dp_check_mst_status - service any pending MST interrupts, check link status
+ * @intel_dp: Intel DP struct
+ *
+ * Read any pending MST interrupts, call MST core to handle these and ack the
+ * interrupts. Check if the main and AUX link state is ok.
+ *
+ * Returns:
+ * - %true if pending interrupts were serviced (or no interrupts were
+ *   pending) w/o detecting an error condition.
+ * - %false if an error condition - like AUX failure or a loss of link - is
+ *   detected, which needs servicing from the hotplug work.
+ */
+static bool
 intel_dp_check_mst_status(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	bool need_retrain = false;
-
-	if (!intel_dp->is_mst)
-		return -EINVAL;
+	bool link_ok = true;
 
 	drm_WARN_ON_ONCE(&i915->drm, intel_dp->active_mst_links < 0);
 
 	for (;;) {
 		u8 esi[DP_DPRX_ESI_LEN] = {};
-		bool bret, handled;
+		bool handled;
 		int retry;
 
-		bret = intel_dp_get_sink_irq_esi(intel_dp, esi);
-		if (!bret) {
+		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
 			drm_dbg_kms(&i915->drm,
 				    "failed to get ESI - device may have failed\n");
-			return -EINVAL;
+			link_ok = false;
+
+			break;
 		}
 
 		/* check link status - esi[10] = 0x200c */
-		if (intel_dp->active_mst_links > 0 && !need_retrain &&
+		if (intel_dp->active_mst_links > 0 && link_ok &&
 		    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
 			drm_dbg_kms(&i915->drm,
 				    "channel EQ not ok, retraining\n");
-			need_retrain = true;
+			link_ok = false;
 		}
 
 		drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
@@ -5604,7 +5615,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
 		}
 	}
 
-	return need_retrain;
+	return link_ok;
 }
 
 static bool
@@ -7255,35 +7266,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	}
 
 	if (intel_dp->is_mst) {
-		switch (intel_dp_check_mst_status(intel_dp)) {
-		case -EINVAL:
-			/*
-			 * If we were in MST mode, and device is not
-			 * there, get out of MST mode
-			 */
-			drm_dbg_kms(&i915->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-
-			return IRQ_NONE;
-		case 1:
-			return IRQ_NONE;
-		default:
-			break;
-		}
-	}
-
-	if (!intel_dp->is_mst) {
-		bool handled;
-
-		handled = intel_dp_short_pulse(intel_dp);
-
-		if (!handled)
+		if (!intel_dp_check_mst_status(intel_dp))
 			return IRQ_NONE;
+	} else if (!intel_dp_short_pulse(intel_dp)) {
+		return IRQ_NONE;
 	}
 
 	return IRQ_HANDLED;
-- 
2.23.1

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Re: [Intel-gfx] [PATCH RESEND v3 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Souza, Jose]

On Fri, 2020-06-05 at 12:48 +0300, Imre Deak wrote:
> Currently MST on a port can get enabled/disabled from the hotplug work
> and get disabled from the short pulse work in a racy way. Fix this by
> relying on the MST state checking in the hotplug work and just schedule
> a hotplug work from the short pulse handler if some problem happened
> during the MST interrupt handling.
> 
> This removes the explicit MST disabling in case of an AUX failure, but
> if AUX fails, then probably the detection will also fail during the
> scheduled hotplug work and it's not guaranteed that we'll see
> intermittent errors anyway.
> 
> While at it also simplify the error checking of the MST interrupt
> handler.
> 
> v2:
> - Convert intel_dp_check_mst_status() to return bool. (Ville)
> - Change the intel_dp->is_mst check to an assert, since after this patch
>   the condition can't change after we checked it previously.
> - Document the return value from intel_dp_check_mst_status().
> v3:
> - Remove the intel_dp->is_mst check from intel_dp_check_mst_status().
>   There is no point in checking the same condition twice, even though
>   there is a chance that the hotplug work running concurrently changes
>   it.
> 
> Cc: José Roberto de Souza <jose.souza@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 66 ++++++++++---------------
>  1 file changed, 26 insertions(+), 40 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 55fda074c0ad..42589cae766d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5556,35 +5556,46 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
>  			    "Could not write test response to sink\n");
>  }
>  
> -static int
> +/**
> + * intel_dp_check_mst_status - service any pending MST interrupts, check link status
> + * @intel_dp: Intel DP struct
> + *
> + * Read any pending MST interrupts, call MST core to handle these and ack the
> + * interrupts. Check if the main and AUX link state is ok.
> + *
> + * Returns:
> + * - %true if pending interrupts were serviced (or no interrupts were
> + *   pending) w/o detecting an error condition.
> + * - %false if an error condition - like AUX failure or a loss of link - is
> + *   detected, which needs servicing from the hotplug work.
> + */
> +static bool
>  intel_dp_check_mst_status(struct intel_dp *intel_dp)
>  {
>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> -	bool need_retrain = false;
> -
> -	if (!intel_dp->is_mst)
> -		return -EINVAL;
> +	bool link_ok = true;
>  
>  	drm_WARN_ON_ONCE(&i915->drm, intel_dp->active_mst_links < 0);
>  
>  	for (;;) {
>  		u8 esi[DP_DPRX_ESI_LEN] = {};
> -		bool bret, handled;
> +		bool handled;
>  		int retry;
>  
> -		bret = intel_dp_get_sink_irq_esi(intel_dp, esi);
> -		if (!bret) {
> +		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
>  			drm_dbg_kms(&i915->drm,
>  				    "failed to get ESI - device may have failed\n");
> -			return -EINVAL;
> +			link_ok = false;
> +
> +			break;
>  		}
>  
>  		/* check link status - esi[10] = 0x200c */
> -		if (intel_dp->active_mst_links > 0 && !need_retrain &&
> +		if (intel_dp->active_mst_links > 0 && link_ok &&
>  		    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
>  			drm_dbg_kms(&i915->drm,
>  				    "channel EQ not ok, retraining\n");
> -			need_retrain = true;
> +			link_ok = false;
>  		}
>  
>  		drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
> @@ -5604,7 +5615,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
>  		}
>  	}
>  
> -	return need_retrain;
> +	return link_ok;
>  }
>  
>  static bool
> @@ -7255,35 +7266,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
>  	}
>  
>  	if (intel_dp->is_mst) {
> -		switch (intel_dp_check_mst_status(intel_dp)) {
> -		case -EINVAL:
> -			/*
> -			 * If we were in MST mode, and device is not
> -			 * there, get out of MST mode
> -			 */
> -			drm_dbg_kms(&i915->drm,
> -				    "MST device may have disappeared %d vs %d\n",
> -				    intel_dp->is_mst,
> -				    intel_dp->mst_mgr.mst_state);
> -			intel_dp->is_mst = false;
> -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> -							intel_dp->is_mst);
> -
> -			return IRQ_NONE;
> -		case 1:
> -			return IRQ_NONE;
> -		default:
> -			break;
> -		}
> -	}
> -
> -	if (!intel_dp->is_mst) {
> -		bool handled;
> -
> -		handled = intel_dp_short_pulse(intel_dp);
> -
> -		if (!handled)
> +		if (!intel_dp_check_mst_status(intel_dp))
>  			return IRQ_NONE;
> +	} else if (!intel_dp_short_pulse(intel_dp)) {
> +		return IRQ_NONE;
>  	}
>  

Now it don't need the braces but this is minor.

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

>  	return IRQ_HANDLED;
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Re: [Intel-gfx] [PATCH RESEND v3 1/3] drm/i915/dp_mst: Fix disabling MST on a port

[Imre Deak]

On Mon, Jun 08, 2020 at 01:11:44AM +0300, Souza, Jose wrote:
> On Fri, 2020-06-05 at 12:48 +0300, Imre Deak wrote:
> > Currently MST on a port can get enabled/disabled from the hotplug work
> > and get disabled from the short pulse work in a racy way. Fix this by
> > relying on the MST state checking in the hotplug work and just schedule
> > a hotplug work from the short pulse handler if some problem happened
> > during the MST interrupt handling.
> > 
> > This removes the explicit MST disabling in case of an AUX failure, but
> > if AUX fails, then probably the detection will also fail during the
> > scheduled hotplug work and it's not guaranteed that we'll see
> > intermittent errors anyway.
> > 
> > While at it also simplify the error checking of the MST interrupt
> > handler.
> > 
> > v2:
> > - Convert intel_dp_check_mst_status() to return bool. (Ville)
> > - Change the intel_dp->is_mst check to an assert, since after this patch
> >   the condition can't change after we checked it previously.
> > - Document the return value from intel_dp_check_mst_status().
> > v3:
> > - Remove the intel_dp->is_mst check from intel_dp_check_mst_status().
> >   There is no point in checking the same condition twice, even though
> >   there is a chance that the hotplug work running concurrently changes
> >   it.
> > 
> > Cc: José Roberto de Souza <jose.souza@intel.com>
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Reviewed-by: José Roberto de Souza <jose.souza@intel.com> (v1)
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_dp.c | 66 ++++++++++---------------
> >  1 file changed, 26 insertions(+), 40 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> > index 55fda074c0ad..42589cae766d 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> > @@ -5556,35 +5556,46 @@ static void intel_dp_handle_test_request(struct intel_dp *intel_dp)
> >  			    "Could not write test response to sink\n");
> >  }
> >  
> > -static int
> > +/**
> > + * intel_dp_check_mst_status - service any pending MST interrupts, check link status
> > + * @intel_dp: Intel DP struct
> > + *
> > + * Read any pending MST interrupts, call MST core to handle these and ack the
> > + * interrupts. Check if the main and AUX link state is ok.
> > + *
> > + * Returns:
> > + * - %true if pending interrupts were serviced (or no interrupts were
> > + *   pending) w/o detecting an error condition.
> > + * - %false if an error condition - like AUX failure or a loss of link - is
> > + *   detected, which needs servicing from the hotplug work.
> > + */
> > +static bool
> >  intel_dp_check_mst_status(struct intel_dp *intel_dp)
> >  {
> >  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> > -	bool need_retrain = false;
> > -
> > -	if (!intel_dp->is_mst)
> > -		return -EINVAL;
> > +	bool link_ok = true;
> >  
> >  	drm_WARN_ON_ONCE(&i915->drm, intel_dp->active_mst_links < 0);
> >  
> >  	for (;;) {
> >  		u8 esi[DP_DPRX_ESI_LEN] = {};
> > -		bool bret, handled;
> > +		bool handled;
> >  		int retry;
> >  
> > -		bret = intel_dp_get_sink_irq_esi(intel_dp, esi);
> > -		if (!bret) {
> > +		if (!intel_dp_get_sink_irq_esi(intel_dp, esi)) {
> >  			drm_dbg_kms(&i915->drm,
> >  				    "failed to get ESI - device may have failed\n");
> > -			return -EINVAL;
> > +			link_ok = false;
> > +
> > +			break;
> >  		}
> >  
> >  		/* check link status - esi[10] = 0x200c */
> > -		if (intel_dp->active_mst_links > 0 && !need_retrain &&
> > +		if (intel_dp->active_mst_links > 0 && link_ok &&
> >  		    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
> >  			drm_dbg_kms(&i915->drm,
> >  				    "channel EQ not ok, retraining\n");
> > -			need_retrain = true;
> > +			link_ok = false;
> >  		}
> >  
> >  		drm_dbg_kms(&i915->drm, "got esi %3ph\n", esi);
> > @@ -5604,7 +5615,7 @@ intel_dp_check_mst_status(struct intel_dp *intel_dp)
> >  		}
> >  	}
> >  
> > -	return need_retrain;
> > +	return link_ok;
> >  }
> >  
> >  static bool
> > @@ -7255,35 +7266,10 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
> >  	}
> >  
> >  	if (intel_dp->is_mst) {
> > -		switch (intel_dp_check_mst_status(intel_dp)) {
> > -		case -EINVAL:
> > -			/*
> > -			 * If we were in MST mode, and device is not
> > -			 * there, get out of MST mode
> > -			 */
> > -			drm_dbg_kms(&i915->drm,
> > -				    "MST device may have disappeared %d vs %d\n",
> > -				    intel_dp->is_mst,
> > -				    intel_dp->mst_mgr.mst_state);
> > -			intel_dp->is_mst = false;
> > -			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
> > -							intel_dp->is_mst);
> > -
> > -			return IRQ_NONE;
> > -		case 1:
> > -			return IRQ_NONE;
> > -		default:
> > -			break;
> > -		}
> > -	}
> > -
> > -	if (!intel_dp->is_mst) {
> > -		bool handled;
> > -
> > -		handled = intel_dp_short_pulse(intel_dp);
> > -
> > -		if (!handled)
> > +		if (!intel_dp_check_mst_status(intel_dp))
> >  			return IRQ_NONE;
> > +	} else if (!intel_dp_short_pulse(intel_dp)) {
> > +		return IRQ_NONE;
> >  	}
> >  
> 
> Now it don't need the braces but this is minor.

Without the braces it wouldn't be correct.

> 
> Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
> 
> >  	return IRQ_HANDLED;
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [v2,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev4)

[Patchwork]

== Series Details ==

Series: series starting with [v2,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev4)
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8585 -> Patchwork_17876
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/index.html

Known issues
------------

  Here are the changes found in Patchwork_17876 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - fi-bsw-kefka:       [PASS][1] -> [DMESG-WARN][2] ([i915#1982])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-bsw-kefka/igt@i915_pm_rpm@basic-pci-d3-state.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-bsw-kefka/igt@i915_pm_rpm@basic-pci-d3-state.html

  * igt@i915_pm_rpm@module-reload:
    - fi-glk-dsi:         [PASS][3] -> [DMESG-WARN][4] ([i915#1982])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-glk-dsi/igt@i915_pm_rpm@module-reload.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-glk-dsi/igt@i915_pm_rpm@module-reload.html

  
#### Possible fixes ####

  * igt@i915_selftest@live@execlists:
    - fi-icl-y:           [DMESG-FAIL][5] ([i915#1993]) -> [PASS][6]
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-icl-y/igt@i915_selftest@live@execlists.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-icl-y/igt@i915_selftest@live@execlists.html

  * igt@kms_busy@basic@flip:
    - fi-kbl-x1275:       [DMESG-WARN][7] ([i915#62] / [i915#92] / [i915#95]) -> [PASS][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-kbl-x1275/igt@kms_busy@basic@flip.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-kbl-x1275/igt@kms_busy@basic@flip.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - fi-icl-u2:          [DMESG-WARN][9] ([i915#1982]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-icl-u2/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-icl-u2/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a:
    - fi-tgl-y:           [DMESG-WARN][11] ([i915#1982]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-tgl-y/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-tgl-y/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a.html

  * igt@kms_pipe_crc_basic@read-crc-pipe-c:
    - {fi-tgl-dsi}:       [DMESG-WARN][13] ([i915#1982]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-tgl-dsi/igt@kms_pipe_crc_basic@read-crc-pipe-c.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-tgl-dsi/igt@kms_pipe_crc_basic@read-crc-pipe-c.html

  
#### Warnings ####

  * igt@gem_exec_suspend@basic-s0:
    - fi-kbl-x1275:       [DMESG-WARN][15] ([i915#62] / [i915#92]) -> [DMESG-WARN][16] ([i915#62] / [i915#92] / [i915#95]) +5 similar issues
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-kbl-x1275/igt@gem_exec_suspend@basic-s0.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-kbl-x1275/igt@gem_exec_suspend@basic-s0.html

  * igt@kms_force_connector_basic@force-edid:
    - fi-kbl-x1275:       [DMESG-WARN][17] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][18] ([i915#62] / [i915#92]) +4 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#1993]: https://gitlab.freedesktop.org/drm/intel/issues/1993
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (50 -> 44)
------------------------------

  Additional (1): fi-kbl-7560u 
  Missing    (7): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-ctg-p8600 fi-byt-clapper fi-bdw-samus 


Build changes
-------------

  * Linux: CI_DRM_8585 -> Patchwork_17876

  CI-20190529: 20190529
  CI_DRM_8585: 3aef9a510cfe66ba71ed397e91c517402f7c26ac @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17876: 510b25246e2201dfbad5a4a34e0cec24f91db43e @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

510b25246e22 drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses
fb42f8a70d4f drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
90c80197a498 drm/i915/dp_mst: Fix disabling MST on a port

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.IGT: success for series starting with [v2,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev4)

[Patchwork]

== Series Details ==

Series: series starting with [v2,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev4)
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8585_full -> Patchwork_17876_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Known issues
------------

  Here are the changes found in Patchwork_17876_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_ctx_param@basic:
    - shard-apl:          [PASS][1] -> [DMESG-WARN][2] ([i915#95]) +13 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl2/igt@gem_ctx_param@basic.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl1/igt@gem_ctx_param@basic.html

  * igt@gem_exec_nop@basic-series:
    - shard-hsw:          [PASS][3] -> [INCOMPLETE][4] ([i915#61])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-hsw8/igt@gem_exec_nop@basic-series.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-hsw6/igt@gem_exec_nop@basic-series.html

  * igt@gem_exec_whisper@basic-queues-all:
    - shard-glk:          [PASS][5] -> [DMESG-WARN][6] ([i915#118] / [i915#95]) +1 similar issue
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-glk8/igt@gem_exec_whisper@basic-queues-all.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-glk8/igt@gem_exec_whisper@basic-queues-all.html

  * igt@i915_selftest@mock@requests:
    - shard-glk:          [PASS][7] -> [INCOMPLETE][8] ([i915#58] / [k.org#198133])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-glk1/igt@i915_selftest@mock@requests.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-glk8/igt@i915_selftest@mock@requests.html

  * igt@kms_cursor_crc@pipe-a-cursor-suspend:
    - shard-kbl:          [PASS][9] -> [DMESG-WARN][10] ([i915#180])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl3/igt@kms_cursor_crc@pipe-a-cursor-suspend.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl6/igt@kms_cursor_crc@pipe-a-cursor-suspend.html

  * igt@kms_cursor_legacy@all-pipes-torture-bo:
    - shard-hsw:          [PASS][11] -> [DMESG-WARN][12] ([i915#128])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-hsw4/igt@kms_cursor_legacy@all-pipes-torture-bo.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-hsw5/igt@kms_cursor_legacy@all-pipes-torture-bo.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
    - shard-kbl:          [PASS][13] -> [DMESG-WARN][14] ([i915#93] / [i915#95])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl6/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html

  * igt@kms_plane@plane-panning-bottom-right-suspend-pipe-b-planes:
    - shard-apl:          [PASS][15] -> [DMESG-WARN][16] ([i915#180])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl1/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-b-planes.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl4/igt@kms_plane@plane-panning-bottom-right-suspend-pipe-b-planes.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [PASS][17] -> [FAIL][18] ([fdo#108145] / [i915#265])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl10/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl4/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_plane_scaling@pipe-c-plane-scaling:
    - shard-skl:          [PASS][19] -> [DMESG-WARN][20] ([i915#1982]) +7 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl8/igt@kms_plane_scaling@pipe-c-plane-scaling.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl1/igt@kms_plane_scaling@pipe-c-plane-scaling.html

  * igt@kms_psr@psr2_primary_mmap_gtt:
    - shard-iclb:         [PASS][21] -> [SKIP][22] ([fdo#109441]) +2 similar issues
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-iclb2/igt@kms_psr@psr2_primary_mmap_gtt.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-iclb3/igt@kms_psr@psr2_primary_mmap_gtt.html

  * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
    - shard-tglb:         [PASS][23] -> [DMESG-WARN][24] ([i915#1982]) +1 similar issue
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-tglb6/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-tglb7/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html

  * igt@perf@blocking:
    - shard-skl:          [PASS][25] -> [FAIL][26] ([i915#1542])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl6/igt@perf@blocking.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl9/igt@perf@blocking.html

  
#### Possible fixes ####

  * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
    - shard-apl:          [DMESG-WARN][27] ([i915#180]) -> [PASS][28] +1 similar issue
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl4/igt@gem_ctx_isolation@preservation-s3@rcs0.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl3/igt@gem_ctx_isolation@preservation-s3@rcs0.html

  * {igt@gem_exec_schedule@implicit-boths@bcs0}:
    - shard-snb:          [INCOMPLETE][29] ([i915#82]) -> [PASS][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-snb4/igt@gem_exec_schedule@implicit-boths@bcs0.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-snb1/igt@gem_exec_schedule@implicit-boths@bcs0.html

  * {igt@gem_exec_schedule@preempt@bcs0}:
    - shard-tglb:         [DMESG-WARN][31] ([i915#402]) -> [PASS][32]
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-tglb8/igt@gem_exec_schedule@preempt@bcs0.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-tglb2/igt@gem_exec_schedule@preempt@bcs0.html

  * igt@kms_big_fb@linear-64bpp-rotate-0:
    - shard-glk:          [DMESG-FAIL][33] ([i915#118] / [i915#95]) -> [PASS][34]
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-0.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-glk9/igt@kms_big_fb@linear-64bpp-rotate-0.html

  * igt@kms_big_fb@x-tiled-32bpp-rotate-180:
    - shard-skl:          [DMESG-WARN][35] ([i915#1982]) -> [PASS][36] +4 similar issues
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl1/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl7/igt@kms_big_fb@x-tiled-32bpp-rotate-180.html

  * igt@kms_color@pipe-c-ctm-red-to-blue:
    - shard-kbl:          [DMESG-WARN][37] ([i915#93] / [i915#95]) -> [PASS][38] +2 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl1/igt@kms_color@pipe-c-ctm-red-to-blue.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl3/igt@kms_color@pipe-c-ctm-red-to-blue.html

  * igt@kms_cursor_crc@pipe-a-cursor-128x42-offscreen:
    - shard-skl:          [FAIL][39] ([i915#54]) -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl5/igt@kms_cursor_crc@pipe-a-cursor-128x42-offscreen.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl2/igt@kms_cursor_crc@pipe-a-cursor-128x42-offscreen.html

  * igt@kms_cursor_crc@pipe-a-cursor-64x21-random:
    - shard-kbl:          [DMESG-FAIL][41] ([i915#54] / [i915#95]) -> [PASS][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl4/igt@kms_cursor_crc@pipe-a-cursor-64x21-random.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl4/igt@kms_cursor_crc@pipe-a-cursor-64x21-random.html

  * igt@kms_cursor_crc@pipe-b-cursor-suspend:
    - shard-kbl:          [DMESG-WARN][43] ([i915#180]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl6/igt@kms_cursor_crc@pipe-b-cursor-suspend.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl7/igt@kms_cursor_crc@pipe-b-cursor-suspend.html

  * igt@kms_cursor_edge_walk@pipe-b-256x256-left-edge:
    - shard-glk:          [DMESG-WARN][45] ([i915#1982]) -> [PASS][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-glk5/igt@kms_cursor_edge_walk@pipe-b-256x256-left-edge.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-glk9/igt@kms_cursor_edge_walk@pipe-b-256x256-left-edge.html

  * igt@kms_cursor_legacy@pipe-c-torture-move:
    - shard-hsw:          [DMESG-WARN][47] ([i915#128]) -> [PASS][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-hsw7/igt@kms_cursor_legacy@pipe-c-torture-move.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-hsw1/igt@kms_cursor_legacy@pipe-c-torture-move.html

  * igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size:
    - shard-tglb:         [DMESG-WARN][49] ([i915#1982]) -> [PASS][50] +1 similar issue
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-tglb7/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-tglb3/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size.html
    - shard-apl:          [DMESG-WARN][51] ([i915#1982]) -> [PASS][52]
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl3/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl8/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions-varying-size.html

  * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
    - shard-kbl:          [TIMEOUT][53] -> [PASS][54] +1 similar issue
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl4/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl1/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html

  * {igt@kms_flip@plain-flip-fb-recreate-interruptible@b-edp1}:
    - shard-skl:          [FAIL][55] ([i915#1928]) -> [PASS][56]
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl9/igt@kms_flip@plain-flip-fb-recreate-interruptible@b-edp1.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl6/igt@kms_flip@plain-flip-fb-recreate-interruptible@b-edp1.html

  * {igt@kms_getfb@getfb2-handle-protection}:
    - shard-apl:          [DMESG-WARN][57] ([i915#95]) -> [PASS][58] +20 similar issues
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl7/igt@kms_getfb@getfb2-handle-protection.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl2/igt@kms_getfb@getfb2-handle-protection.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-skl:          [FAIL][59] ([i915#1188]) -> [PASS][60]
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl5/igt@kms_hdr@bpc-switch-suspend.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl7/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_plane_alpha_blend@pipe-b-constant-alpha-min:
    - shard-skl:          [FAIL][61] ([fdo#108145] / [i915#265]) -> [PASS][62]
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl6/igt@kms_plane_alpha_blend@pipe-b-constant-alpha-min.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl10/igt@kms_plane_alpha_blend@pipe-b-constant-alpha-min.html

  * igt@kms_psr@psr2_cursor_render:
    - shard-iclb:         [SKIP][63] ([fdo#109441]) -> [PASS][64] +2 similar issues
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-iclb8/igt@kms_psr@psr2_cursor_render.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-iclb2/igt@kms_psr@psr2_cursor_render.html

  * {igt@perf_pmu@enable-race@vecs0}:
    - shard-glk:          [DMESG-WARN][65] ([i915#118] / [i915#95]) -> [PASS][66] +2 similar issues
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-glk7/igt@perf_pmu@enable-race@vecs0.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-glk7/igt@perf_pmu@enable-race@vecs0.html

  
#### Warnings ####

  * igt@i915_pm_dc@dc6-psr:
    - shard-tglb:         [FAIL][67] ([i915#454]) -> [SKIP][68] ([i915#468])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-tglb8/igt@i915_pm_dc@dc6-psr.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-tglb2/igt@i915_pm_dc@dc6-psr.html

  * igt@kms_ccs@pipe-c-crc-primary-basic:
    - shard-kbl:          [TIMEOUT][69] -> [SKIP][70] ([fdo#109271]) +1 similar issue
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl4/igt@kms_ccs@pipe-c-crc-primary-basic.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl1/igt@kms_ccs@pipe-c-crc-primary-basic.html

  * igt@kms_color_chamelium@pipe-c-ctm-limited-range:
    - shard-kbl:          [INCOMPLETE][71] -> [SKIP][72] ([fdo#109271] / [fdo#111827])
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl4/igt@kms_color_chamelium@pipe-c-ctm-limited-range.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl1/igt@kms_color_chamelium@pipe-c-ctm-limited-range.html

  * igt@kms_content_protection@atomic-dpms:
    - shard-apl:          [FAIL][73] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][74] ([i915#1319] / [i915#1635])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl4/igt@kms_content_protection@atomic-dpms.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl7/igt@kms_content_protection@atomic-dpms.html

  * igt@kms_content_protection@legacy:
    - shard-apl:          [TIMEOUT][75] ([i915#1319] / [i915#1635]) -> [FAIL][76] ([fdo#110321] / [fdo#110336])
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl1/igt@kms_content_protection@legacy.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl4/igt@kms_content_protection@legacy.html

  * igt@kms_content_protection@lic:
    - shard-apl:          [TIMEOUT][77] ([i915#1319] / [i915#1635]) -> [DMESG-FAIL][78] ([fdo#110321] / [i915#95]) +1 similar issue
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-apl4/igt@kms_content_protection@lic.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-apl3/igt@kms_content_protection@lic.html

  * igt@kms_content_protection@srm:
    - shard-kbl:          [DMESG-FAIL][79] ([fdo#110321] / [i915#95]) -> [TIMEOUT][80] ([i915#1319])
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-kbl2/igt@kms_content_protection@srm.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-kbl7/igt@kms_content_protection@srm.html

  * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
    - shard-glk:          [INCOMPLETE][81] ([i915#58] / [k.org#198133]) -> [TIMEOUT][82] ([i915#1958])
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-glk6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-glk6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html

  * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
    - shard-skl:          [DMESG-WARN][83] ([i915#1982]) -> [DMESG-FAIL][84] ([fdo#108145] / [i915#1982])
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8585/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/shard-skl7/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#454]: https://gitlab.freedesktop.org/drm/intel/issues/454
  [i915#468]: https://gitlab.freedesktop.org/drm/intel/issues/468
  [i915#54]: https://gitlab.freedesktop.org/drm/intel/issues/54
  [i915#58]: https://gitlab.freedesktop.org/drm/intel/issues/58
  [i915#61]: https://gitlab.freedesktop.org/drm/intel/issues/61
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
  [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
  [k.org#198133]: https://bugzilla.kernel.org/show_bug.cgi?id=198133


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * Linux: CI_DRM_8585 -> Patchwork_17876

  CI-20190529: 20190529
  CI_DRM_8585: 3aef9a510cfe66ba71ed397e91c517402f7c26ac @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17876: 510b25246e2201dfbad5a4a34e0cec24f91db43e @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17876/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✗ Fi.CI.BUILD: failure for series starting with [v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev5)

[Patchwork]

== Series Details ==

Series: series starting with [v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev5)
URL   : https://patchwork.freedesktop.org/series/77969/
State : failure

== Summary ==

Applying: drm/i915/dp_mst: Fix disabling MST on a port
error: sha1 information is lacking or useless (drivers/gpu/drm/i915/display/intel_dp.c).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 drm/i915/dp_mst: Fix disabling MST on a port
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Patchwork]

== Series Details ==

Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8590 -> Patchwork_17882
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html

Known issues
------------

  Here are the changes found in Patchwork_17882 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_pm_rpm@basic-pci-d3-state:
    - fi-byt-j1900:       [PASS][1] -> [DMESG-WARN][2] ([i915#1982])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-byt-j1900/igt@i915_pm_rpm@basic-pci-d3-state.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-byt-j1900/igt@i915_pm_rpm@basic-pci-d3-state.html

  
#### Possible fixes ####

  * igt@i915_module_load@reload:
    - fi-byt-j1900:       [DMESG-WARN][3] ([i915#1982]) -> [PASS][4] +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-byt-j1900/igt@i915_module_load@reload.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-byt-j1900/igt@i915_module_load@reload.html
    - fi-byt-n2820:       [DMESG-WARN][5] ([i915#1982]) -> [PASS][6]
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-byt-n2820/igt@i915_module_load@reload.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-byt-n2820/igt@i915_module_load@reload.html

  * igt@i915_pm_rpm@module-reload:
    - fi-apl-guc:         [DMESG-WARN][7] ([i915#1982]) -> [PASS][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-apl-guc/igt@i915_pm_rpm@module-reload.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-apl-guc/igt@i915_pm_rpm@module-reload.html

  * igt@i915_selftest@live@active:
    - fi-whl-u:           [DMESG-FAIL][9] ([i915#666]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-whl-u/igt@i915_selftest@live@active.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-whl-u/igt@i915_selftest@live@active.html

  * igt@kms_busy@basic@flip:
    - fi-kbl-x1275:       [DMESG-WARN][11] ([i915#62] / [i915#92] / [i915#95]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-kbl-x1275/igt@kms_busy@basic@flip.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-kbl-x1275/igt@kms_busy@basic@flip.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-tgl-y:           [DMESG-WARN][13] ([i915#1982]) -> [PASS][14] +1 similar issue
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-tgl-y/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-tgl-y/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
    - fi-icl-guc:         [DMESG-WARN][15] ([i915#1982]) -> [PASS][16]
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-icl-guc/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-icl-guc/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  
#### Warnings ####

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - fi-kbl-x1275:       [DMESG-WARN][17] ([i915#62] / [i915#92]) -> [DMESG-WARN][18] ([i915#62] / [i915#92] / [i915#95]) +4 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-kbl-x1275/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-kbl-x1275/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_force_connector_basic@force-edid:
    - fi-kbl-x1275:       [DMESG-WARN][19] ([i915#62] / [i915#92] / [i915#95]) -> [DMESG-WARN][20] ([i915#62] / [i915#92]) +5 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/fi-kbl-x1275/igt@kms_force_connector_basic@force-edid.html

  
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#62]: https://gitlab.freedesktop.org/drm/intel/issues/62
  [i915#666]: https://gitlab.freedesktop.org/drm/intel/issues/666
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (50 -> 43)
------------------------------

  Additional (1): fi-kbl-7560u 
  Missing    (8): fi-ilk-m540 fi-hsw-4200u fi-byt-squawks fi-bsw-cyan fi-ctg-p8600 fi-bsw-kefka fi-byt-clapper fi-bdw-samus 


Build changes
-------------

  * Linux: CI_DRM_8590 -> Patchwork_17882

  CI-20190529: 20190529
  CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

23fe5e3ae835 drm/i915/dp_mst: Work around out-of-spec adapters filtering short pulses
ceb861eabe52 drm/dp_mst: Sanitize mgr->qlock locking in drm_dp_mst_wait_tx_reply()
ba27048a7abb drm/i915/dp_mst: Fix disabling MST on a port

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✗ Fi.CI.IGT: failure for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Patchwork]

== Series Details ==

Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
URL   : https://patchwork.freedesktop.org/series/77969/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_8590_full -> Patchwork_17882_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_17882_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_17882_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_17882_full:

### IGT changes ###

#### Possible regressions ####

  * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
    - shard-snb:          [PASS][1] -> [TIMEOUT][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html

  
#### Warnings ####

  * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
    - shard-snb:          [SKIP][3] ([fdo#109271]) -> [TIMEOUT][4] +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html

  
#### Suppressed ####

  The following results come from untrusted machines, tests, or statuses.
  They do not affect the overall result.

  * {igt@gem_exec_reloc@basic-concurrent16}:
    - shard-snb:          [FAIL][5] ([i915#1930]) -> [TIMEOUT][6]
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@gem_exec_reloc@basic-concurrent16.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@gem_exec_reloc@basic-concurrent16.html

  * {igt@kms_chamelium@vga-hpd-enable-disable-mode}:
    - shard-snb:          [SKIP][7] ([fdo#109271] / [fdo#111827]) -> [TIMEOUT][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_chamelium@vga-hpd-enable-disable-mode.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_chamelium@vga-hpd-enable-disable-mode.html

  
Known issues
------------

  Here are the changes found in Patchwork_17882_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_exec_whisper@basic-forked-all:
    - shard-glk:          [PASS][9] -> [DMESG-WARN][10] ([i915#118] / [i915#95])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk7/igt@gem_exec_whisper@basic-forked-all.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk2/igt@gem_exec_whisper@basic-forked-all.html

  * igt@gem_mmap_gtt@cpuset-big-copy-odd:
    - shard-iclb:         [PASS][11] -> [DMESG-WARN][12] ([i915#1982])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@gem_mmap_gtt@cpuset-big-copy-odd.html

  * igt@gem_workarounds@suspend-resume:
    - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#180])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_workarounds@suspend-resume.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_workarounds@suspend-resume.html

  * igt@kms_big_fb@linear-32bpp-rotate-180:
    - shard-skl:          [PASS][15] -> [DMESG-WARN][16] ([i915#1982]) +9 similar issues
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_big_fb@linear-32bpp-rotate-180.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_big_fb@linear-32bpp-rotate-180.html

  * igt@kms_big_fb@linear-64bpp-rotate-180:
    - shard-glk:          [PASS][17] -> [DMESG-FAIL][18] ([i915#118] / [i915#95]) +1 similar issue
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk2/igt@kms_big_fb@linear-64bpp-rotate-180.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html

  * igt@kms_big_fb@x-tiled-16bpp-rotate-0:
    - shard-glk:          [PASS][19] -> [DMESG-WARN][20] ([i915#1982])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk5/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk4/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html

  * igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen:
    - shard-apl:          [PASS][21] -> [DMESG-WARN][22] ([i915#95]) +17 similar issues
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html

  * igt@kms_cursor_crc@pipe-c-cursor-suspend:
    - shard-kbl:          [PASS][23] -> [DMESG-WARN][24] ([i915#180]) +4 similar issues
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_cursor_crc@pipe-c-cursor-suspend.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
    - shard-kbl:          [PASS][25] -> [DMESG-WARN][26] ([i915#93] / [i915#95])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html

  * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu:
    - shard-skl:          [PASS][27] -> [FAIL][28] ([i915#49])
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html

  * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
    - shard-skl:          [PASS][29] -> [FAIL][30] ([fdo#108145] / [i915#265]) +1 similar issue
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html

  * igt@kms_plane_lowres@pipe-a-tiling-x:
    - shard-snb:          [PASS][31] -> [SKIP][32] ([fdo#109271]) +1 similar issue
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@kms_plane_lowres@pipe-a-tiling-x.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_lowres@pipe-a-tiling-x.html

  * igt@kms_psr@psr2_cursor_blt:
    - shard-iclb:         [PASS][33] -> [SKIP][34] ([fdo#109441]) +3 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb2/igt@kms_psr@psr2_cursor_blt.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb4/igt@kms_psr@psr2_cursor_blt.html

  * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
    - shard-kbl:          [PASS][35] -> [DMESG-WARN][36] ([i915#1982])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html

  * igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted:
    - shard-tglb:         [PASS][37] -> [DMESG-WARN][38] ([i915#402])
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb6/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb7/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html

  
#### Possible fixes ####

  * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
    - shard-apl:          [DMESG-WARN][39] ([i915#180]) -> [PASS][40] +2 similar issues
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_ctx_isolation@preservation-s3@rcs0.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_ctx_isolation@preservation-s3@rcs0.html

  * igt@gem_exec_whisper@basic-queues-forked-all:
    - shard-glk:          [DMESG-WARN][41] ([i915#118] / [i915#95]) -> [PASS][42] +1 similar issue
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html

  * igt@gen9_exec_parse@allowed-all:
    - shard-kbl:          [DMESG-WARN][43] ([i915#1436] / [i915#716]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@gen9_exec_parse@allowed-all.html

  * igt@i915_suspend@debugfs-reader:
    - shard-kbl:          [INCOMPLETE][45] ([i915#155]) -> [PASS][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@i915_suspend@debugfs-reader.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl6/igt@i915_suspend@debugfs-reader.html

  * igt@kms_color@pipe-c-ctm-red-to-blue:
    - shard-kbl:          [DMESG-WARN][47] ([i915#93] / [i915#95]) -> [PASS][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html

  * igt@kms_color@pipe-d-ctm-0-5:
    - shard-tglb:         [DMESG-WARN][49] ([i915#1149] / [i915#402]) -> [PASS][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb2/igt@kms_color@pipe-d-ctm-0-5.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb1/igt@kms_color@pipe-d-ctm-0-5.html

  * igt@kms_cursor_legacy@all-pipes-torture-move:
    - shard-skl:          [DMESG-WARN][51] ([i915#128]) -> [PASS][52]
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_cursor_legacy@all-pipes-torture-move.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_cursor_legacy@all-pipes-torture-move.html

  * {igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2}:
    - shard-glk:          [DMESG-WARN][53] ([i915#1982]) -> [PASS][54]
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk6/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html

  * igt@kms_flip_tiling@flip-x-tiled:
    - shard-apl:          [DMESG-WARN][55] ([i915#95]) -> [PASS][56] +26 similar issues
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl7/igt@kms_flip_tiling@flip-x-tiled.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_flip_tiling@flip-x-tiled.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-skl:          [FAIL][57] ([i915#1188]) -> [PASS][58]
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_hdr@bpc-switch-suspend.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
    - shard-kbl:          [DMESG-WARN][59] ([i915#180]) -> [PASS][60] +3 similar issues
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html

  * igt@kms_plane@plane-panning-bottom-right-pipe-c-planes:
    - shard-skl:          [DMESG-WARN][61] ([i915#1982]) -> [PASS][62] +2 similar issues
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html

  * igt@kms_psr@psr2_primary_mmap_cpu:
    - shard-iclb:         [SKIP][63] ([fdo#109441]) -> [PASS][64] +2 similar issues
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html

  * igt@kms_setmode@basic:
    - shard-apl:          [FAIL][65] ([i915#31]) -> [PASS][66]
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_setmode@basic.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_setmode@basic.html
    - shard-kbl:          [FAIL][67] ([i915#31]) -> [PASS][68]
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl6/igt@kms_setmode@basic.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_setmode@basic.html

  * {igt@perf@polling-parameterized}:
    - shard-hsw:          [FAIL][69] ([i915#1542]) -> [PASS][70]
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-hsw6/igt@perf@polling-parameterized.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-hsw5/igt@perf@polling-parameterized.html

  
#### Warnings ####

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-snb:          [SKIP][71] ([fdo#109271]) -> [INCOMPLETE][72] ([i915#82]) +1 similar issue
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb5/igt@i915_pm_dc@dc3co-vpb-simulation.html
    - shard-iclb:         [SKIP][73] ([i915#658]) -> [SKIP][74] ([i915#588])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html

  * igt@kms_content_protection@atomic:
    - shard-apl:          [FAIL][75] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][76] ([i915#1319] / [i915#1635])
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_content_protection@atomic.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_content_protection@atomic.html

  * igt@kms_content_protection@legacy:
    - shard-kbl:          [DMESG-FAIL][77] ([fdo#110321]) -> [TIMEOUT][78] ([i915#1319] / [i915#1958])
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_content_protection@legacy.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_content_protection@legacy.html

  * igt@kms_content_protection@lic:
    - shard-apl:          [DMESG-FAIL][79] ([fdo#110321] / [i915#95]) -> [TIMEOUT][80] ([i915#1319] / [i915#1635]) +1 similar issue
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@kms_content_protection@lic.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@kms_content_protection@lic.html

  * igt@kms_content_protection@srm:
    - shard-kbl:          [DMESG-FAIL][81] ([fdo#110321] / [i915#95]) -> [TIMEOUT][82] ([i915#1319])
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_content_protection@srm.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_content_protection@srm.html

  * igt@kms_frontbuffer_tracking@fbc-suspend:
    - shard-kbl:          [DMESG-WARN][83] ([i915#180] / [i915#93] / [i915#95]) -> [DMESG-WARN][84] ([i915#93] / [i915#95])
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
    - shard-apl:          [DMESG-WARN][85] ([i915#180] / [i915#95]) -> [DMESG-WARN][86] ([i915#95])
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_frontbuffer_tracking@fbc-suspend.html

  * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
    - shard-skl:          [DMESG-WARN][87] ([i915#1982]) -> [DMESG-FAIL][88] ([fdo#108145] / [i915#1982])
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
  [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * Linux: CI_DRM_8590 -> Patchwork_17882

  CI-20190529: 20190529
  CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [Intel-gfx] ✗ Fi.CI.IGT: failure for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Imre Deak]

On Fri, Jun 05, 2020 at 11:26:13AM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
> URL   : https://patchwork.freedesktop.org/series/77969/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_8590_full -> Patchwork_17882_full
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_17882_full absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_17882_full, please notify your bug team to allow them
>   to document this new failure mode, which will reduce false positives in CI.
> 
>   
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in Patchwork_17882_full:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
>     - shard-snb:          [PASS][1] -> [TIMEOUT][2]
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
> 
>   
> #### Warnings ####
> 
>   * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
>     - shard-snb:          [SKIP][3] ([fdo#109271]) -> [TIMEOUT][4] +1 similar issue
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html

Both of the above are unrelated, since there's only a VGA output
connected to shard-snb1. Both tests time out because an earlier
failure:

<7>[   96.713236] [IGT] gem_exec_reloc: starting subtest basic-concurrent16
<5>[  216.856564] [IGT] Per-test timeout exceeded. Killing the current test with SIGQUIT.

<6>[  216.880307] gem_exec_reloc  S12784  1625   1624 0x00000000
<4>[  216.880311] Call Trace:
<4>[  216.880317]  __schedule+0x2ff/0x8d0
<4>[  216.880325]  schedule+0x37/0xe0
<4>[  216.880328]  schedule_timeout+0x1aa/0x2e0
<4>[  216.880390]  ? mock_breadcrumbs_smoketest+0x290/0x290 [i915]
<4>[  216.880394]  ? find_held_lock+0x2d/0x90
<4>[  216.880442]  ? hwsp_seqno+0x5b/0xd0 [i915]
<4>[  216.880449]  io_schedule_timeout+0x14/0x40
<4>[  216.880502]  i915_request_wait+0x159/0x550 [i915]
<4>[  216.880548]  ? __i915_request_await_external+0x40/0x40 [i915]
<4>[  216.880593]  i915_gem_object_wait+0xb2/0x540 [i915]
<4>[  216.880640]  i915_gem_wait_ioctl+0x113/0x2d0 [i915]
<4>[  216.880683]  ? i915_gem_object_wait+0x540/0x540 [i915]
<4>[  216.880688]  drm_ioctl_kernel+0xb0/0xf0
<4>[  216.880694]  drm_ioctl+0x305/0x3c0
<4>[  216.880737]  ? i915_gem_object_wait+0x540/0x540 [i915]
<4>[  216.880750]  ksys_ioctl+0x7b/0x90
<4>[  216.880755]  __x64_sys_ioctl+0x11/0x20
<4>[  216.880757]  do_syscall_64+0x4f/0x220
<4>[  216.880760]  entry_SYSCALL_64_after_hwframe+0x49/0xb3

> 
>   
> #### Suppressed ####
> 
>   The following results come from untrusted machines, tests, or statuses.
>   They do not affect the overall result.
> 
>   * {igt@gem_exec_reloc@basic-concurrent16}:
>     - shard-snb:          [FAIL][5] ([i915#1930]) -> [TIMEOUT][6]
>    [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@gem_exec_reloc@basic-concurrent16.html
>    [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@gem_exec_reloc@basic-concurrent16.html
> 
>   * {igt@kms_chamelium@vga-hpd-enable-disable-mode}:
>     - shard-snb:          [SKIP][7] ([fdo#109271] / [fdo#111827]) -> [TIMEOUT][8]
>    [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_chamelium@vga-hpd-enable-disable-mode.html
>    [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_chamelium@vga-hpd-enable-disable-mode.html
> 
>   
> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_17882_full that come from known issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@gem_exec_whisper@basic-forked-all:
>     - shard-glk:          [PASS][9] -> [DMESG-WARN][10] ([i915#118] / [i915#95])
>    [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk7/igt@gem_exec_whisper@basic-forked-all.html
>    [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk2/igt@gem_exec_whisper@basic-forked-all.html
> 
>   * igt@gem_mmap_gtt@cpuset-big-copy-odd:
>     - shard-iclb:         [PASS][11] -> [DMESG-WARN][12] ([i915#1982])
>    [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
>    [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
> 
>   * igt@gem_workarounds@suspend-resume:
>     - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#180])
>    [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_workarounds@suspend-resume.html
>    [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_workarounds@suspend-resume.html
> 
>   * igt@kms_big_fb@linear-32bpp-rotate-180:
>     - shard-skl:          [PASS][15] -> [DMESG-WARN][16] ([i915#1982]) +9 similar issues
>    [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_big_fb@linear-32bpp-rotate-180.html
>    [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_big_fb@linear-32bpp-rotate-180.html
> 
>   * igt@kms_big_fb@linear-64bpp-rotate-180:
>     - shard-glk:          [PASS][17] -> [DMESG-FAIL][18] ([i915#118] / [i915#95]) +1 similar issue
>    [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk2/igt@kms_big_fb@linear-64bpp-rotate-180.html
>    [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html
> 
>   * igt@kms_big_fb@x-tiled-16bpp-rotate-0:
>     - shard-glk:          [PASS][19] -> [DMESG-WARN][20] ([i915#1982])
>    [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk5/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
>    [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk4/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen:
>     - shard-apl:          [PASS][21] -> [DMESG-WARN][22] ([i915#95]) +17 similar issues
>    [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
>    [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-suspend:
>     - shard-kbl:          [PASS][23] -> [DMESG-WARN][24] ([i915#180]) +4 similar issues
>    [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
>    [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
>     - shard-kbl:          [PASS][25] -> [DMESG-WARN][26] ([i915#93] / [i915#95])
>    [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
>    [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
> 
>   * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu:
>     - shard-skl:          [PASS][27] -> [FAIL][28] ([i915#49])
>    [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
>    [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
>     - shard-skl:          [PASS][29] -> [FAIL][30] ([fdo#108145] / [i915#265]) +1 similar issue
>    [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
>    [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
> 
>   * igt@kms_plane_lowres@pipe-a-tiling-x:
>     - shard-snb:          [PASS][31] -> [SKIP][32] ([fdo#109271]) +1 similar issue
>    [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@kms_plane_lowres@pipe-a-tiling-x.html
>    [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_lowres@pipe-a-tiling-x.html
> 
>   * igt@kms_psr@psr2_cursor_blt:
>     - shard-iclb:         [PASS][33] -> [SKIP][34] ([fdo#109441]) +3 similar issues
>    [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb2/igt@kms_psr@psr2_cursor_blt.html
>    [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb4/igt@kms_psr@psr2_cursor_blt.html
> 
>   * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
>     - shard-kbl:          [PASS][35] -> [DMESG-WARN][36] ([i915#1982])
>    [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
>    [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
> 
>   * igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted:
>     - shard-tglb:         [PASS][37] -> [DMESG-WARN][38] ([i915#402])
>    [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb6/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
>    [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb7/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
> 
>   
> #### Possible fixes ####
> 
>   * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
>     - shard-apl:          [DMESG-WARN][39] ([i915#180]) -> [PASS][40] +2 similar issues
>    [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_ctx_isolation@preservation-s3@rcs0.html
>    [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_ctx_isolation@preservation-s3@rcs0.html
> 
>   * igt@gem_exec_whisper@basic-queues-forked-all:
>     - shard-glk:          [DMESG-WARN][41] ([i915#118] / [i915#95]) -> [PASS][42] +1 similar issue
>    [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
>    [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
> 
>   * igt@gen9_exec_parse@allowed-all:
>     - shard-kbl:          [DMESG-WARN][43] ([i915#1436] / [i915#716]) -> [PASS][44]
>    [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
>    [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@gen9_exec_parse@allowed-all.html
> 
>   * igt@i915_suspend@debugfs-reader:
>     - shard-kbl:          [INCOMPLETE][45] ([i915#155]) -> [PASS][46]
>    [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@i915_suspend@debugfs-reader.html
>    [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl6/igt@i915_suspend@debugfs-reader.html
> 
>   * igt@kms_color@pipe-c-ctm-red-to-blue:
>     - shard-kbl:          [DMESG-WARN][47] ([i915#93] / [i915#95]) -> [PASS][48]
>    [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
>    [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
> 
>   * igt@kms_color@pipe-d-ctm-0-5:
>     - shard-tglb:         [DMESG-WARN][49] ([i915#1149] / [i915#402]) -> [PASS][50]
>    [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb2/igt@kms_color@pipe-d-ctm-0-5.html
>    [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb1/igt@kms_color@pipe-d-ctm-0-5.html
> 
>   * igt@kms_cursor_legacy@all-pipes-torture-move:
>     - shard-skl:          [DMESG-WARN][51] ([i915#128]) -> [PASS][52]
>    [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_cursor_legacy@all-pipes-torture-move.html
>    [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_cursor_legacy@all-pipes-torture-move.html
> 
>   * {igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2}:
>     - shard-glk:          [DMESG-WARN][53] ([i915#1982]) -> [PASS][54]
>    [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk6/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
>    [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
> 
>   * igt@kms_flip_tiling@flip-x-tiled:
>     - shard-apl:          [DMESG-WARN][55] ([i915#95]) -> [PASS][56] +26 similar issues
>    [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl7/igt@kms_flip_tiling@flip-x-tiled.html
>    [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_flip_tiling@flip-x-tiled.html
> 
>   * igt@kms_hdr@bpc-switch-suspend:
>     - shard-skl:          [FAIL][57] ([i915#1188]) -> [PASS][58]
>    [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_hdr@bpc-switch-suspend.html
>    [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_hdr@bpc-switch-suspend.html
> 
>   * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
>     - shard-kbl:          [DMESG-WARN][59] ([i915#180]) -> [PASS][60] +3 similar issues
>    [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
>    [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
> 
>   * igt@kms_plane@plane-panning-bottom-right-pipe-c-planes:
>     - shard-skl:          [DMESG-WARN][61] ([i915#1982]) -> [PASS][62] +2 similar issues
>    [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
>    [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
> 
>   * igt@kms_psr@psr2_primary_mmap_cpu:
>     - shard-iclb:         [SKIP][63] ([fdo#109441]) -> [PASS][64] +2 similar issues
>    [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html
>    [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html
> 
>   * igt@kms_setmode@basic:
>     - shard-apl:          [FAIL][65] ([i915#31]) -> [PASS][66]
>    [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_setmode@basic.html
>    [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_setmode@basic.html
>     - shard-kbl:          [FAIL][67] ([i915#31]) -> [PASS][68]
>    [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl6/igt@kms_setmode@basic.html
>    [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_setmode@basic.html
> 
>   * {igt@perf@polling-parameterized}:
>     - shard-hsw:          [FAIL][69] ([i915#1542]) -> [PASS][70]
>    [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-hsw6/igt@perf@polling-parameterized.html
>    [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-hsw5/igt@perf@polling-parameterized.html
> 
>   
> #### Warnings ####
> 
>   * igt@i915_pm_dc@dc3co-vpb-simulation:
>     - shard-snb:          [SKIP][71] ([fdo#109271]) -> [INCOMPLETE][72] ([i915#82]) +1 similar issue
>    [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb5/igt@i915_pm_dc@dc3co-vpb-simulation.html
>     - shard-iclb:         [SKIP][73] ([i915#658]) -> [SKIP][74] ([i915#588])
>    [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
> 
>   * igt@kms_content_protection@atomic:
>     - shard-apl:          [FAIL][75] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][76] ([i915#1319] / [i915#1635])
>    [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_content_protection@atomic.html
>    [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_content_protection@atomic.html
> 
>   * igt@kms_content_protection@legacy:
>     - shard-kbl:          [DMESG-FAIL][77] ([fdo#110321]) -> [TIMEOUT][78] ([i915#1319] / [i915#1958])
>    [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_content_protection@legacy.html
>    [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_content_protection@legacy.html
> 
>   * igt@kms_content_protection@lic:
>     - shard-apl:          [DMESG-FAIL][79] ([fdo#110321] / [i915#95]) -> [TIMEOUT][80] ([i915#1319] / [i915#1635]) +1 similar issue
>    [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@kms_content_protection@lic.html
>    [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@kms_content_protection@lic.html
> 
>   * igt@kms_content_protection@srm:
>     - shard-kbl:          [DMESG-FAIL][81] ([fdo#110321] / [i915#95]) -> [TIMEOUT][82] ([i915#1319])
>    [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_content_protection@srm.html
>    [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_content_protection@srm.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-suspend:
>     - shard-kbl:          [DMESG-WARN][83] ([i915#180] / [i915#93] / [i915#95]) -> [DMESG-WARN][84] ([i915#93] / [i915#95])
>    [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>     - shard-apl:          [DMESG-WARN][85] ([i915#180] / [i915#95]) -> [DMESG-WARN][86] ([i915#95])
>    [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_frontbuffer_tracking@fbc-suspend.html
> 
>   * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
>     - shard-skl:          [DMESG-WARN][87] ([i915#1982]) -> [DMESG-FAIL][88] ([fdo#108145] / [i915#1982])
>    [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
>    [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
> 
>   
>   {name}: This element is suppressed. This means it is ignored when computing
>           the status of the difference (SUCCESS, WARNING, or FAILURE).
> 
>   [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
>   [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
>   [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
>   [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
>   [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
>   [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
>   [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
>   [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
>   [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
>   [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
>   [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
>   [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
>   [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
>   [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
>   [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
>   [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
>   [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
>   [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
>   [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
>   [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
>   [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
>   [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
>   [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
>   [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
>   [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
>   [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
>   [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
>   [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
>   [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
>   [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
>   [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
>   [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
> 
> 
> Participating hosts (11 -> 11)
> ------------------------------
> 
>   No changes in participating hosts
> 
> 
> Build changes
> -------------
> 
>   * Linux: CI_DRM_8590 -> Patchwork_17882
> 
>   CI-20190529: 20190529
>   CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
>   IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
>   Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux
>   piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
_______________________________________________
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Re: [Intel-gfx] ✗ Fi.CI.IGT: failure for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Vudum, Lakshminarayana]

Imre, I have addressed and re-reported.

Lakshmi.

-----Original Message-----
From: Imre Deak <imre.deak@intel.com> 
Sent: Friday, June 5, 2020 2:50 PM
To: intel-gfx@lists.freedesktop.org
Cc: Vudum, Lakshminarayana <lakshminarayana.vudum@intel.com>
Subject: Re: ✗ Fi.CI.IGT: failure for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

On Fri, Jun 05, 2020 at 11:26:13AM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
> URL   : https://patchwork.freedesktop.org/series/77969/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_8590_full -> Patchwork_17882_full 
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_17882_full absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_17882_full, please notify your bug team to allow them
>   to document this new failure mode, which will reduce false positives in CI.
> 
>   
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in Patchwork_17882_full:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
>     - shard-snb:          [PASS][1] -> [TIMEOUT][2]
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
>    [2]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/ig
> t@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
> 
>   
> #### Warnings ####
> 
>   * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
>     - shard-snb:          [SKIP][3] ([fdo#109271]) -> [TIMEOUT][4] +1 similar issue
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
>    [4]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/ig
> t@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html

Both of the above are unrelated, since there's only a VGA output connected to shard-snb1. Both tests time out because an earlier
failure:

<7>[   96.713236] [IGT] gem_exec_reloc: starting subtest basic-concurrent16
<5>[  216.856564] [IGT] Per-test timeout exceeded. Killing the current test with SIGQUIT.

<6>[  216.880307] gem_exec_reloc  S12784  1625   1624 0x00000000
<4>[  216.880311] Call Trace:
<4>[  216.880317]  __schedule+0x2ff/0x8d0 <4>[  216.880325]  schedule+0x37/0xe0 <4>[  216.880328]  schedule_timeout+0x1aa/0x2e0 <4>[  216.880390]  ? mock_breadcrumbs_smoketest+0x290/0x290 [i915] <4>[  216.880394]  ? find_held_lock+0x2d/0x90 <4>[  216.880442]  ? hwsp_seqno+0x5b/0xd0 [i915] <4>[  216.880449]  io_schedule_timeout+0x14/0x40 <4>[  216.880502]  i915_request_wait+0x159/0x550 [i915] <4>[  216.880548]  ? __i915_request_await_external+0x40/0x40 [i915] <4>[  216.880593]  i915_gem_object_wait+0xb2/0x540 [i915] <4>[  216.880640]  i915_gem_wait_ioctl+0x113/0x2d0 [i915] <4>[  216.880683]  ? i915_gem_object_wait+0x540/0x540 [i915] <4>[  216.880688]  drm_ioctl_kernel+0xb0/0xf0 <4>[  216.880694]  drm_ioctl+0x305/0x3c0 <4>[  216.880737]  ? i915_gem_object_wait+0x540/0x540 [i915] <4>[  216.880750]  ksys_ioctl+0x7b/0x90 <4>[  216.880755]  __x64_sys_ioctl+0x11/0x20 <4>[  216.880757]  do_syscall_64+0x4f/0x220 <4>[  216.880760]  entry_SYSCALL_64_after_hwframe+0x49/0xb3

> 
>   
> #### Suppressed ####
> 
>   The following results come from untrusted machines, tests, or statuses.
>   They do not affect the overall result.
> 
>   * {igt@gem_exec_reloc@basic-concurrent16}:
>     - shard-snb:          [FAIL][5] ([i915#1930]) -> [TIMEOUT][6]
>    [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@gem_exec_reloc@basic-concurrent16.html
>    [6]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/ig
> t@gem_exec_reloc@basic-concurrent16.html
> 
>   * {igt@kms_chamelium@vga-hpd-enable-disable-mode}:
>     - shard-snb:          [SKIP][7] ([fdo#109271] / [fdo#111827]) -> [TIMEOUT][8]
>    [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_chamelium@vga-hpd-enable-disable-mode.html
>    [8]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/ig
> t@kms_chamelium@vga-hpd-enable-disable-mode.html
> 
>   
> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_17882_full that come from known issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@gem_exec_whisper@basic-forked-all:
>     - shard-glk:          [PASS][9] -> [DMESG-WARN][10] ([i915#118] / [i915#95])
>    [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk7/igt@gem_exec_whisper@basic-forked-all.html
>    [10]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk2/ig
> t@gem_exec_whisper@basic-forked-all.html
> 
>   * igt@gem_mmap_gtt@cpuset-big-copy-odd:
>     - shard-iclb:         [PASS][11] -> [DMESG-WARN][12] ([i915#1982])
>    [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
>    [12]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/i
> gt@gem_mmap_gtt@cpuset-big-copy-odd.html
> 
>   * igt@gem_workarounds@suspend-resume:
>     - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#180])
>    [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_workarounds@suspend-resume.html
>    [14]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/ig
> t@gem_workarounds@suspend-resume.html
> 
>   * igt@kms_big_fb@linear-32bpp-rotate-180:
>     - shard-skl:          [PASS][15] -> [DMESG-WARN][16] ([i915#1982]) +9 similar issues
>    [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_big_fb@linear-32bpp-rotate-180.html
>    [16]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/ig
> t@kms_big_fb@linear-32bpp-rotate-180.html
> 
>   * igt@kms_big_fb@linear-64bpp-rotate-180:
>     - shard-glk:          [PASS][17] -> [DMESG-FAIL][18] ([i915#118] / [i915#95]) +1 similar issue
>    [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk2/igt@kms_big_fb@linear-64bpp-rotate-180.html
>    [18]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/ig
> t@kms_big_fb@linear-64bpp-rotate-180.html
> 
>   * igt@kms_big_fb@x-tiled-16bpp-rotate-0:
>     - shard-glk:          [PASS][19] -> [DMESG-WARN][20] ([i915#1982])
>    [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk5/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
>    [20]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk4/ig
> t@kms_big_fb@x-tiled-16bpp-rotate-0.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen:
>     - shard-apl:          [PASS][21] -> [DMESG-WARN][22] ([i915#95]) +17 similar issues
>    [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
>    [22]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/ig
> t@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-suspend:
>     - shard-kbl:          [PASS][23] -> [DMESG-WARN][24] ([i915#180]) +4 similar issues
>    [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
>    [24]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/ig
> t@kms_cursor_crc@pipe-c-cursor-suspend.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
>     - shard-kbl:          [PASS][25] -> [DMESG-WARN][26] ([i915#93] / [i915#95])
>    [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
>    [26]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl1/ig
> t@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
> 
>   * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu:
>     - shard-skl:          [PASS][27] -> [FAIL][28] ([i915#49])
>    [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
>    [28]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl9/ig
> t@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
>     - shard-skl:          [PASS][29] -> [FAIL][30] ([fdo#108145] / [i915#265]) +1 similar issue
>    [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
>    [30]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/ig
> t@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
> 
>   * igt@kms_plane_lowres@pipe-a-tiling-x:
>     - shard-snb:          [PASS][31] -> [SKIP][32] ([fdo#109271]) +1 similar issue
>    [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@kms_plane_lowres@pipe-a-tiling-x.html
>    [32]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/ig
> t@kms_plane_lowres@pipe-a-tiling-x.html
> 
>   * igt@kms_psr@psr2_cursor_blt:
>     - shard-iclb:         [PASS][33] -> [SKIP][34] ([fdo#109441]) +3 similar issues
>    [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb2/igt@kms_psr@psr2_cursor_blt.html
>    [34]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb4/i
> gt@kms_psr@psr2_cursor_blt.html
> 
>   * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
>     - shard-kbl:          [PASS][35] -> [DMESG-WARN][36] ([i915#1982])
>    [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
>    [36]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/ig
> t@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
> 
>   * igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted:
>     - shard-tglb:         [PASS][37] -> [DMESG-WARN][38] ([i915#402])
>    [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb6/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
>    [38]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb7/i
> gt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
> 
>   
> #### Possible fixes ####
> 
>   * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
>     - shard-apl:          [DMESG-WARN][39] ([i915#180]) -> [PASS][40] +2 similar issues
>    [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_ctx_isolation@preservation-s3@rcs0.html
>    [40]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/ig
> t@gem_ctx_isolation@preservation-s3@rcs0.html
> 
>   * igt@gem_exec_whisper@basic-queues-forked-all:
>     - shard-glk:          [DMESG-WARN][41] ([i915#118] / [i915#95]) -> [PASS][42] +1 similar issue
>    [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
>    [42]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk9/ig
> t@gem_exec_whisper@basic-queues-forked-all.html
> 
>   * igt@gen9_exec_parse@allowed-all:
>     - shard-kbl:          [DMESG-WARN][43] ([i915#1436] / [i915#716]) -> [PASS][44]
>    [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
>    [44]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/ig
> t@gen9_exec_parse@allowed-all.html
> 
>   * igt@i915_suspend@debugfs-reader:
>     - shard-kbl:          [INCOMPLETE][45] ([i915#155]) -> [PASS][46]
>    [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@i915_suspend@debugfs-reader.html
>    [46]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl6/ig
> t@i915_suspend@debugfs-reader.html
> 
>   * igt@kms_color@pipe-c-ctm-red-to-blue:
>     - shard-kbl:          [DMESG-WARN][47] ([i915#93] / [i915#95]) -> [PASS][48]
>    [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
>    [48]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/ig
> t@kms_color@pipe-c-ctm-red-to-blue.html
> 
>   * igt@kms_color@pipe-d-ctm-0-5:
>     - shard-tglb:         [DMESG-WARN][49] ([i915#1149] / [i915#402]) -> [PASS][50]
>    [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb2/igt@kms_color@pipe-d-ctm-0-5.html
>    [50]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb1/i
> gt@kms_color@pipe-d-ctm-0-5.html
> 
>   * igt@kms_cursor_legacy@all-pipes-torture-move:
>     - shard-skl:          [DMESG-WARN][51] ([i915#128]) -> [PASS][52]
>    [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_cursor_legacy@all-pipes-torture-move.html
>    [52]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/ig
> t@kms_cursor_legacy@all-pipes-torture-move.html
> 
>   * {igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2}:
>     - shard-glk:          [DMESG-WARN][53] ([i915#1982]) -> [PASS][54]
>    [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk6/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
>    [54]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/ig
> t@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
> 
>   * igt@kms_flip_tiling@flip-x-tiled:
>     - shard-apl:          [DMESG-WARN][55] ([i915#95]) -> [PASS][56] +26 similar issues
>    [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl7/igt@kms_flip_tiling@flip-x-tiled.html
>    [56]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/ig
> t@kms_flip_tiling@flip-x-tiled.html
> 
>   * igt@kms_hdr@bpc-switch-suspend:
>     - shard-skl:          [FAIL][57] ([i915#1188]) -> [PASS][58]
>    [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_hdr@bpc-switch-suspend.html
>    [58]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/ig
> t@kms_hdr@bpc-switch-suspend.html
> 
>   * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
>     - shard-kbl:          [DMESG-WARN][59] ([i915#180]) -> [PASS][60] +3 similar issues
>    [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
>    [60]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/ig
> t@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
> 
>   * igt@kms_plane@plane-panning-bottom-right-pipe-c-planes:
>     - shard-skl:          [DMESG-WARN][61] ([i915#1982]) -> [PASS][62] +2 similar issues
>    [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
>    [62]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/ig
> t@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
> 
>   * igt@kms_psr@psr2_primary_mmap_cpu:
>     - shard-iclb:         [SKIP][63] ([fdo#109441]) -> [PASS][64] +2 similar issues
>    [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html
>    [64]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/i
> gt@kms_psr@psr2_primary_mmap_cpu.html
> 
>   * igt@kms_setmode@basic:
>     - shard-apl:          [FAIL][65] ([i915#31]) -> [PASS][66]
>    [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_setmode@basic.html
>    [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_setmode@basic.html
>     - shard-kbl:          [FAIL][67] ([i915#31]) -> [PASS][68]
>    [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl6/igt@kms_setmode@basic.html
>    [68]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/ig
> t@kms_setmode@basic.html
> 
>   * {igt@perf@polling-parameterized}:
>     - shard-hsw:          [FAIL][69] ([i915#1542]) -> [PASS][70]
>    [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-hsw6/igt@perf@polling-parameterized.html
>    [70]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-hsw5/ig
> t@perf@polling-parameterized.html
> 
>   
> #### Warnings ####
> 
>   * igt@i915_pm_dc@dc3co-vpb-simulation:
>     - shard-snb:          [SKIP][71] ([fdo#109271]) -> [INCOMPLETE][72] ([i915#82]) +1 similar issue
>    [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb5/igt@i915_pm_dc@dc3co-vpb-simulation.html
>     - shard-iclb:         [SKIP][73] ([i915#658]) -> [SKIP][74] ([i915#588])
>    [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [74]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/i
> gt@i915_pm_dc@dc3co-vpb-simulation.html
> 
>   * igt@kms_content_protection@atomic:
>     - shard-apl:          [FAIL][75] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][76] ([i915#1319] / [i915#1635])
>    [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_content_protection@atomic.html
>    [76]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/ig
> t@kms_content_protection@atomic.html
> 
>   * igt@kms_content_protection@legacy:
>     - shard-kbl:          [DMESG-FAIL][77] ([fdo#110321]) -> [TIMEOUT][78] ([i915#1319] / [i915#1958])
>    [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_content_protection@legacy.html
>    [78]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/ig
> t@kms_content_protection@legacy.html
> 
>   * igt@kms_content_protection@lic:
>     - shard-apl:          [DMESG-FAIL][79] ([fdo#110321] / [i915#95]) -> [TIMEOUT][80] ([i915#1319] / [i915#1635]) +1 similar issue
>    [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@kms_content_protection@lic.html
>    [80]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/ig
> t@kms_content_protection@lic.html
> 
>   * igt@kms_content_protection@srm:
>     - shard-kbl:          [DMESG-FAIL][81] ([fdo#110321] / [i915#95]) -> [TIMEOUT][82] ([i915#1319])
>    [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_content_protection@srm.html
>    [82]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/ig
> t@kms_content_protection@srm.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-suspend:
>     - shard-kbl:          [DMESG-WARN][83] ([i915#180] / [i915#93] / [i915#95]) -> [DMESG-WARN][84] ([i915#93] / [i915#95])
>    [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>     - shard-apl:          [DMESG-WARN][85] ([i915#180] / [i915#95]) -> [DMESG-WARN][86] ([i915#95])
>    [85]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [86]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/ig
> t@kms_frontbuffer_tracking@fbc-suspend.html
> 
>   * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
>     - shard-skl:          [DMESG-WARN][87] ([i915#1982]) -> [DMESG-FAIL][88] ([fdo#108145] / [i915#1982])
>    [87]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
>    [88]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/ig
> t@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
> 
>   
>   {name}: This element is suppressed. This means it is ignored when computing
>           the status of the difference (SUCCESS, WARNING, or FAILURE).
> 
>   [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
>   [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
>   [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
>   [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
>   [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
>   [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
>   [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
>   [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
>   [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
>   [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
>   [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
>   [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
>   [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
>   [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
>   [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
>   [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
>   [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
>   [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
>   [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
>   [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
>   [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
>   [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
>   [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
>   [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
>   [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
>   [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
>   [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
>   [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
>   [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
>   [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
>   [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
>   [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
> 
> 
> Participating hosts (11 -> 11)
> ------------------------------
> 
>   No changes in participating hosts
> 
> 
> Build changes
> -------------
> 
>   * Linux: CI_DRM_8590 -> Patchwork_17882
> 
>   CI-20190529: 20190529
>   CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
>   IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
>   Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux
>   piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ 
> git://anongit.freedesktop.org/piglit
> 
> == Logs ==
> 
> For more details see: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
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[Intel-gfx] ✓ Fi.CI.IGT: success for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Patchwork]

== Series Details ==

Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
URL   : https://patchwork.freedesktop.org/series/77969/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_8590_full -> Patchwork_17882_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Known issues
------------

  Here are the changes found in Patchwork_17882_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_exec_whisper@basic-forked-all:
    - shard-glk:          [PASS][1] -> [DMESG-WARN][2] ([i915#118] / [i915#95])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk7/igt@gem_exec_whisper@basic-forked-all.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk2/igt@gem_exec_whisper@basic-forked-all.html

  * igt@gem_mmap_gtt@cpuset-big-copy-odd:
    - shard-iclb:         [PASS][3] -> [DMESG-WARN][4] ([i915#1982])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@gem_mmap_gtt@cpuset-big-copy-odd.html

  * igt@gem_workarounds@suspend-resume:
    - shard-apl:          [PASS][5] -> [DMESG-WARN][6] ([i915#180])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_workarounds@suspend-resume.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_workarounds@suspend-resume.html

  * igt@kms_big_fb@linear-32bpp-rotate-180:
    - shard-skl:          [PASS][7] -> [DMESG-WARN][8] ([i915#1982]) +9 similar issues
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_big_fb@linear-32bpp-rotate-180.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_big_fb@linear-32bpp-rotate-180.html

  * igt@kms_big_fb@linear-64bpp-rotate-180:
    - shard-glk:          [PASS][9] -> [DMESG-FAIL][10] ([i915#118] / [i915#95]) +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk2/igt@kms_big_fb@linear-64bpp-rotate-180.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html

  * igt@kms_big_fb@x-tiled-16bpp-rotate-0:
    - shard-glk:          [PASS][11] -> [DMESG-WARN][12] ([i915#1982])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk5/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk4/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html

  * igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen:
    - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#95]) +17 similar issues
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html

  * igt@kms_cursor_crc@pipe-c-cursor-suspend:
    - shard-kbl:          [PASS][15] -> [DMESG-WARN][16] ([i915#180]) +4 similar issues
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_cursor_crc@pipe-c-cursor-suspend.html

  * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
    - shard-snb:          [PASS][17] -> [TIMEOUT][18] ([i915#1958])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
    - shard-kbl:          [PASS][19] -> [DMESG-WARN][20] ([i915#93] / [i915#95])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html

  * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu:
    - shard-skl:          [PASS][21] -> [FAIL][22] ([i915#49])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html

  * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
    - shard-skl:          [PASS][23] -> [FAIL][24] ([fdo#108145] / [i915#265]) +1 similar issue
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html

  * igt@kms_plane_lowres@pipe-a-tiling-x:
    - shard-snb:          [PASS][25] -> [SKIP][26] ([fdo#109271]) +1 similar issue
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@kms_plane_lowres@pipe-a-tiling-x.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_lowres@pipe-a-tiling-x.html

  * igt@kms_psr@psr2_cursor_blt:
    - shard-iclb:         [PASS][27] -> [SKIP][28] ([fdo#109441]) +3 similar issues
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb2/igt@kms_psr@psr2_cursor_blt.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb4/igt@kms_psr@psr2_cursor_blt.html

  * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
    - shard-kbl:          [PASS][29] -> [DMESG-WARN][30] ([i915#1982])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html

  * igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted:
    - shard-tglb:         [PASS][31] -> [DMESG-WARN][32] ([i915#402])
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb6/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb7/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html

  
#### Possible fixes ####

  * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
    - shard-apl:          [DMESG-WARN][33] ([i915#180]) -> [PASS][34] +2 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_ctx_isolation@preservation-s3@rcs0.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_ctx_isolation@preservation-s3@rcs0.html

  * igt@gem_exec_whisper@basic-queues-forked-all:
    - shard-glk:          [DMESG-WARN][35] ([i915#118] / [i915#95]) -> [PASS][36] +1 similar issue
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html

  * igt@gen9_exec_parse@allowed-all:
    - shard-kbl:          [DMESG-WARN][37] ([i915#1436] / [i915#716]) -> [PASS][38]
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@gen9_exec_parse@allowed-all.html

  * igt@i915_suspend@debugfs-reader:
    - shard-kbl:          [INCOMPLETE][39] ([i915#155]) -> [PASS][40]
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@i915_suspend@debugfs-reader.html
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl6/igt@i915_suspend@debugfs-reader.html

  * igt@kms_color@pipe-c-ctm-red-to-blue:
    - shard-kbl:          [DMESG-WARN][41] ([i915#93] / [i915#95]) -> [PASS][42]
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html

  * igt@kms_color@pipe-d-ctm-0-5:
    - shard-tglb:         [DMESG-WARN][43] ([i915#1149] / [i915#402]) -> [PASS][44]
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb2/igt@kms_color@pipe-d-ctm-0-5.html
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb1/igt@kms_color@pipe-d-ctm-0-5.html

  * igt@kms_cursor_legacy@all-pipes-torture-move:
    - shard-skl:          [DMESG-WARN][45] ([i915#128]) -> [PASS][46]
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_cursor_legacy@all-pipes-torture-move.html
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_cursor_legacy@all-pipes-torture-move.html

  * {igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2}:
    - shard-glk:          [DMESG-WARN][47] ([i915#1982]) -> [PASS][48]
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk6/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html

  * igt@kms_flip_tiling@flip-x-tiled:
    - shard-apl:          [DMESG-WARN][49] ([i915#95]) -> [PASS][50] +26 similar issues
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl7/igt@kms_flip_tiling@flip-x-tiled.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_flip_tiling@flip-x-tiled.html

  * igt@kms_hdr@bpc-switch-suspend:
    - shard-skl:          [FAIL][51] ([i915#1188]) -> [PASS][52]
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_hdr@bpc-switch-suspend.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_hdr@bpc-switch-suspend.html

  * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
    - shard-kbl:          [DMESG-WARN][53] ([i915#180]) -> [PASS][54] +3 similar issues
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html

  * igt@kms_plane@plane-panning-bottom-right-pipe-c-planes:
    - shard-skl:          [DMESG-WARN][55] ([i915#1982]) -> [PASS][56] +2 similar issues
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html

  * igt@kms_psr@psr2_primary_mmap_cpu:
    - shard-iclb:         [SKIP][57] ([fdo#109441]) -> [PASS][58] +2 similar issues
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html

  * igt@kms_setmode@basic:
    - shard-apl:          [FAIL][59] ([i915#31]) -> [PASS][60]
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_setmode@basic.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_setmode@basic.html
    - shard-kbl:          [FAIL][61] ([i915#31]) -> [PASS][62]
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl6/igt@kms_setmode@basic.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_setmode@basic.html

  * {igt@perf@polling-parameterized}:
    - shard-hsw:          [FAIL][63] ([i915#1542]) -> [PASS][64]
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-hsw6/igt@perf@polling-parameterized.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-hsw5/igt@perf@polling-parameterized.html

  
#### Warnings ####

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-snb:          [SKIP][65] ([fdo#109271]) -> [INCOMPLETE][66] ([i915#82]) +1 similar issue
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb5/igt@i915_pm_dc@dc3co-vpb-simulation.html
    - shard-iclb:         [SKIP][67] ([i915#658]) -> [SKIP][68] ([i915#588])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html

  * igt@kms_content_protection@atomic:
    - shard-apl:          [FAIL][69] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][70] ([i915#1319] / [i915#1635])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_content_protection@atomic.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_content_protection@atomic.html

  * igt@kms_content_protection@legacy:
    - shard-kbl:          [DMESG-FAIL][71] ([fdo#110321]) -> [TIMEOUT][72] ([i915#1319] / [i915#1958])
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_content_protection@legacy.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_content_protection@legacy.html

  * igt@kms_content_protection@lic:
    - shard-apl:          [DMESG-FAIL][73] ([fdo#110321] / [i915#95]) -> [TIMEOUT][74] ([i915#1319] / [i915#1635]) +1 similar issue
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@kms_content_protection@lic.html
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@kms_content_protection@lic.html

  * igt@kms_content_protection@srm:
    - shard-kbl:          [DMESG-FAIL][75] ([fdo#110321] / [i915#95]) -> [TIMEOUT][76] ([i915#1319])
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_content_protection@srm.html
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_content_protection@srm.html

  * igt@kms_frontbuffer_tracking@fbc-suspend:
    - shard-kbl:          [DMESG-WARN][77] ([i915#180] / [i915#93] / [i915#95]) -> [DMESG-WARN][78] ([i915#93] / [i915#95])
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
    - shard-apl:          [DMESG-WARN][79] ([i915#180] / [i915#95]) -> [DMESG-WARN][80] ([i915#95])
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_frontbuffer_tracking@fbc-suspend.html

  * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
    - shard-skl:          [DMESG-WARN][81] ([i915#1982]) -> [DMESG-FAIL][82] ([fdo#108145] / [i915#1982])
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html

  * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
    - shard-snb:          [SKIP][83] ([fdo#109271]) -> [TIMEOUT][84] ([i915#1958]) +1 similar issue
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
  [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
  [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
  [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
  [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
  [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
  [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
  [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
  [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
  [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
  [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
  [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
  [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
  [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
  [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
  [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95


Participating hosts (11 -> 11)
------------------------------

  No changes in participating hosts


Build changes
-------------

  * Linux: CI_DRM_8590 -> Patchwork_17882

  CI-20190529: 20190529
  CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
  Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
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Re: ✓ Fi.CI.IGT: success for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Imre Deak]

On Fri, Jun 05, 2020 at 01:53:52PM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
> URL   : https://patchwork.freedesktop.org/series/77969/
> State : success

Thanks for the reviews, pushed patch 1 to -dinq and patches 2,3 to
drm-misc-next.

> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_8590_full -> Patchwork_17882_full
> ====================================================
> 
> Summary
> -------
> 
>   **SUCCESS**
> 
>   No regressions found.
> 
>   
> 
> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_17882_full that come from known issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@gem_exec_whisper@basic-forked-all:
>     - shard-glk:          [PASS][1] -> [DMESG-WARN][2] ([i915#118] / [i915#95])
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk7/igt@gem_exec_whisper@basic-forked-all.html
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk2/igt@gem_exec_whisper@basic-forked-all.html
> 
>   * igt@gem_mmap_gtt@cpuset-big-copy-odd:
>     - shard-iclb:         [PASS][3] -> [DMESG-WARN][4] ([i915#1982])
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
> 
>   * igt@gem_workarounds@suspend-resume:
>     - shard-apl:          [PASS][5] -> [DMESG-WARN][6] ([i915#180])
>    [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_workarounds@suspend-resume.html
>    [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_workarounds@suspend-resume.html
> 
>   * igt@kms_big_fb@linear-32bpp-rotate-180:
>     - shard-skl:          [PASS][7] -> [DMESG-WARN][8] ([i915#1982]) +9 similar issues
>    [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_big_fb@linear-32bpp-rotate-180.html
>    [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_big_fb@linear-32bpp-rotate-180.html
> 
>   * igt@kms_big_fb@linear-64bpp-rotate-180:
>     - shard-glk:          [PASS][9] -> [DMESG-FAIL][10] ([i915#118] / [i915#95]) +1 similar issue
>    [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk2/igt@kms_big_fb@linear-64bpp-rotate-180.html
>    [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html
> 
>   * igt@kms_big_fb@x-tiled-16bpp-rotate-0:
>     - shard-glk:          [PASS][11] -> [DMESG-WARN][12] ([i915#1982])
>    [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk5/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
>    [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk4/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen:
>     - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#95]) +17 similar issues
>    [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
>    [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-suspend:
>     - shard-kbl:          [PASS][15] -> [DMESG-WARN][16] ([i915#180]) +4 similar issues
>    [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
>    [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
> 
>   * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
>     - shard-snb:          [PASS][17] -> [TIMEOUT][18] ([i915#1958])
>    [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
>    [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
>     - shard-kbl:          [PASS][19] -> [DMESG-WARN][20] ([i915#93] / [i915#95])
>    [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
>    [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
> 
>   * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu:
>     - shard-skl:          [PASS][21] -> [FAIL][22] ([i915#49])
>    [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
>    [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
>     - shard-skl:          [PASS][23] -> [FAIL][24] ([fdo#108145] / [i915#265]) +1 similar issue
>    [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
>    [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
> 
>   * igt@kms_plane_lowres@pipe-a-tiling-x:
>     - shard-snb:          [PASS][25] -> [SKIP][26] ([fdo#109271]) +1 similar issue
>    [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@kms_plane_lowres@pipe-a-tiling-x.html
>    [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_lowres@pipe-a-tiling-x.html
> 
>   * igt@kms_psr@psr2_cursor_blt:
>     - shard-iclb:         [PASS][27] -> [SKIP][28] ([fdo#109441]) +3 similar issues
>    [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb2/igt@kms_psr@psr2_cursor_blt.html
>    [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb4/igt@kms_psr@psr2_cursor_blt.html
> 
>   * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
>     - shard-kbl:          [PASS][29] -> [DMESG-WARN][30] ([i915#1982])
>    [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
>    [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
> 
>   * igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted:
>     - shard-tglb:         [PASS][31] -> [DMESG-WARN][32] ([i915#402])
>    [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb6/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
>    [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb7/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
> 
>   
> #### Possible fixes ####
> 
>   * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
>     - shard-apl:          [DMESG-WARN][33] ([i915#180]) -> [PASS][34] +2 similar issues
>    [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_ctx_isolation@preservation-s3@rcs0.html
>    [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_ctx_isolation@preservation-s3@rcs0.html
> 
>   * igt@gem_exec_whisper@basic-queues-forked-all:
>     - shard-glk:          [DMESG-WARN][35] ([i915#118] / [i915#95]) -> [PASS][36] +1 similar issue
>    [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
>    [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
> 
>   * igt@gen9_exec_parse@allowed-all:
>     - shard-kbl:          [DMESG-WARN][37] ([i915#1436] / [i915#716]) -> [PASS][38]
>    [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
>    [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@gen9_exec_parse@allowed-all.html
> 
>   * igt@i915_suspend@debugfs-reader:
>     - shard-kbl:          [INCOMPLETE][39] ([i915#155]) -> [PASS][40]
>    [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@i915_suspend@debugfs-reader.html
>    [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl6/igt@i915_suspend@debugfs-reader.html
> 
>   * igt@kms_color@pipe-c-ctm-red-to-blue:
>     - shard-kbl:          [DMESG-WARN][41] ([i915#93] / [i915#95]) -> [PASS][42]
>    [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
>    [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
> 
>   * igt@kms_color@pipe-d-ctm-0-5:
>     - shard-tglb:         [DMESG-WARN][43] ([i915#1149] / [i915#402]) -> [PASS][44]
>    [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb2/igt@kms_color@pipe-d-ctm-0-5.html
>    [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb1/igt@kms_color@pipe-d-ctm-0-5.html
> 
>   * igt@kms_cursor_legacy@all-pipes-torture-move:
>     - shard-skl:          [DMESG-WARN][45] ([i915#128]) -> [PASS][46]
>    [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_cursor_legacy@all-pipes-torture-move.html
>    [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_cursor_legacy@all-pipes-torture-move.html
> 
>   * {igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2}:
>     - shard-glk:          [DMESG-WARN][47] ([i915#1982]) -> [PASS][48]
>    [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk6/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
>    [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
> 
>   * igt@kms_flip_tiling@flip-x-tiled:
>     - shard-apl:          [DMESG-WARN][49] ([i915#95]) -> [PASS][50] +26 similar issues
>    [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl7/igt@kms_flip_tiling@flip-x-tiled.html
>    [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_flip_tiling@flip-x-tiled.html
> 
>   * igt@kms_hdr@bpc-switch-suspend:
>     - shard-skl:          [FAIL][51] ([i915#1188]) -> [PASS][52]
>    [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_hdr@bpc-switch-suspend.html
>    [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_hdr@bpc-switch-suspend.html
> 
>   * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
>     - shard-kbl:          [DMESG-WARN][53] ([i915#180]) -> [PASS][54] +3 similar issues
>    [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
>    [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
> 
>   * igt@kms_plane@plane-panning-bottom-right-pipe-c-planes:
>     - shard-skl:          [DMESG-WARN][55] ([i915#1982]) -> [PASS][56] +2 similar issues
>    [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
>    [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
> 
>   * igt@kms_psr@psr2_primary_mmap_cpu:
>     - shard-iclb:         [SKIP][57] ([fdo#109441]) -> [PASS][58] +2 similar issues
>    [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html
>    [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html
> 
>   * igt@kms_setmode@basic:
>     - shard-apl:          [FAIL][59] ([i915#31]) -> [PASS][60]
>    [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_setmode@basic.html
>    [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_setmode@basic.html
>     - shard-kbl:          [FAIL][61] ([i915#31]) -> [PASS][62]
>    [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl6/igt@kms_setmode@basic.html
>    [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_setmode@basic.html
> 
>   * {igt@perf@polling-parameterized}:
>     - shard-hsw:          [FAIL][63] ([i915#1542]) -> [PASS][64]
>    [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-hsw6/igt@perf@polling-parameterized.html
>    [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-hsw5/igt@perf@polling-parameterized.html
> 
>   
> #### Warnings ####
> 
>   * igt@i915_pm_dc@dc3co-vpb-simulation:
>     - shard-snb:          [SKIP][65] ([fdo#109271]) -> [INCOMPLETE][66] ([i915#82]) +1 similar issue
>    [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb5/igt@i915_pm_dc@dc3co-vpb-simulation.html
>     - shard-iclb:         [SKIP][67] ([i915#658]) -> [SKIP][68] ([i915#588])
>    [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
> 
>   * igt@kms_content_protection@atomic:
>     - shard-apl:          [FAIL][69] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][70] ([i915#1319] / [i915#1635])
>    [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_content_protection@atomic.html
>    [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_content_protection@atomic.html
> 
>   * igt@kms_content_protection@legacy:
>     - shard-kbl:          [DMESG-FAIL][71] ([fdo#110321]) -> [TIMEOUT][72] ([i915#1319] / [i915#1958])
>    [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_content_protection@legacy.html
>    [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_content_protection@legacy.html
> 
>   * igt@kms_content_protection@lic:
>     - shard-apl:          [DMESG-FAIL][73] ([fdo#110321] / [i915#95]) -> [TIMEOUT][74] ([i915#1319] / [i915#1635]) +1 similar issue
>    [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@kms_content_protection@lic.html
>    [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@kms_content_protection@lic.html
> 
>   * igt@kms_content_protection@srm:
>     - shard-kbl:          [DMESG-FAIL][75] ([fdo#110321] / [i915#95]) -> [TIMEOUT][76] ([i915#1319])
>    [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_content_protection@srm.html
>    [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_content_protection@srm.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-suspend:
>     - shard-kbl:          [DMESG-WARN][77] ([i915#180] / [i915#93] / [i915#95]) -> [DMESG-WARN][78] ([i915#93] / [i915#95])
>    [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>     - shard-apl:          [DMESG-WARN][79] ([i915#180] / [i915#95]) -> [DMESG-WARN][80] ([i915#95])
>    [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_frontbuffer_tracking@fbc-suspend.html
> 
>   * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
>     - shard-skl:          [DMESG-WARN][81] ([i915#1982]) -> [DMESG-FAIL][82] ([fdo#108145] / [i915#1982])
>    [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
>    [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
> 
>   * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
>     - shard-snb:          [SKIP][83] ([fdo#109271]) -> [TIMEOUT][84] ([i915#1958]) +1 similar issue
>    [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
>    [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
> 
>   
>   {name}: This element is suppressed. This means it is ignored when computing
>           the status of the difference (SUCCESS, WARNING, or FAILURE).
> 
>   [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
>   [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
>   [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
>   [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
>   [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
>   [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
>   [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
>   [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
>   [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
>   [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
>   [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
>   [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
>   [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
>   [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
>   [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
>   [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
>   [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
>   [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
>   [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
>   [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
>   [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
>   [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
>   [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
>   [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
>   [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
>   [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
>   [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
>   [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
>   [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
>   [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
>   [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
>   [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
> 
> 
> Participating hosts (11 -> 11)
> ------------------------------
> 
>   No changes in participating hosts
> 
> 
> Build changes
> -------------
> 
>   * Linux: CI_DRM_8590 -> Patchwork_17882
> 
>   CI-20190529: 20190529
>   CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
>   IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
>   Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux
>   piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
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Re: [Intel-gfx] ✓ Fi.CI.IGT: success for series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)

[Imre Deak]

On Fri, Jun 05, 2020 at 01:53:52PM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: series starting with [RESEND,v3,1/3] drm/i915/dp_mst: Fix disabling MST on a port (rev6)
> URL   : https://patchwork.freedesktop.org/series/77969/
> State : success

Thanks for the reviews, pushed patch 1 to -dinq and patches 2,3 to
drm-misc-next.

> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_8590_full -> Patchwork_17882_full
> ====================================================
> 
> Summary
> -------
> 
>   **SUCCESS**
> 
>   No regressions found.
> 
>   
> 
> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_17882_full that come from known issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@gem_exec_whisper@basic-forked-all:
>     - shard-glk:          [PASS][1] -> [DMESG-WARN][2] ([i915#118] / [i915#95])
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk7/igt@gem_exec_whisper@basic-forked-all.html
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk2/igt@gem_exec_whisper@basic-forked-all.html
> 
>   * igt@gem_mmap_gtt@cpuset-big-copy-odd:
>     - shard-iclb:         [PASS][3] -> [DMESG-WARN][4] ([i915#1982])
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@gem_mmap_gtt@cpuset-big-copy-odd.html
> 
>   * igt@gem_workarounds@suspend-resume:
>     - shard-apl:          [PASS][5] -> [DMESG-WARN][6] ([i915#180])
>    [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_workarounds@suspend-resume.html
>    [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_workarounds@suspend-resume.html
> 
>   * igt@kms_big_fb@linear-32bpp-rotate-180:
>     - shard-skl:          [PASS][7] -> [DMESG-WARN][8] ([i915#1982]) +9 similar issues
>    [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_big_fb@linear-32bpp-rotate-180.html
>    [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_big_fb@linear-32bpp-rotate-180.html
> 
>   * igt@kms_big_fb@linear-64bpp-rotate-180:
>     - shard-glk:          [PASS][9] -> [DMESG-FAIL][10] ([i915#118] / [i915#95]) +1 similar issue
>    [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk2/igt@kms_big_fb@linear-64bpp-rotate-180.html
>    [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_big_fb@linear-64bpp-rotate-180.html
> 
>   * igt@kms_big_fb@x-tiled-16bpp-rotate-0:
>     - shard-glk:          [PASS][11] -> [DMESG-WARN][12] ([i915#1982])
>    [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk5/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
>    [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk4/igt@kms_big_fb@x-tiled-16bpp-rotate-0.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen:
>     - shard-apl:          [PASS][13] -> [DMESG-WARN][14] ([i915#95]) +17 similar issues
>    [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
>    [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_cursor_crc@pipe-c-cursor-256x85-offscreen.html
> 
>   * igt@kms_cursor_crc@pipe-c-cursor-suspend:
>     - shard-kbl:          [PASS][15] -> [DMESG-WARN][16] ([i915#180]) +4 similar issues
>    [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
>    [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
> 
>   * igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled:
>     - shard-snb:          [PASS][17] -> [TIMEOUT][18] ([i915#1958])
>    [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
>    [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_draw_crc@draw-method-rgb565-mmap-gtt-xtiled.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
>     - shard-kbl:          [PASS][19] -> [DMESG-WARN][20] ([i915#93] / [i915#95])
>    [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
>    [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl1/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
> 
>   * igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu:
>     - shard-skl:          [PASS][21] -> [FAIL][22] ([i915#49])
>    [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
>    [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl9/igt@kms_frontbuffer_tracking@psr-rgb101010-draw-mmap-cpu.html
> 
>   * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
>     - shard-skl:          [PASS][23] -> [FAIL][24] ([fdo#108145] / [i915#265]) +1 similar issue
>    [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
>    [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html
> 
>   * igt@kms_plane_lowres@pipe-a-tiling-x:
>     - shard-snb:          [PASS][25] -> [SKIP][26] ([fdo#109271]) +1 similar issue
>    [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@kms_plane_lowres@pipe-a-tiling-x.html
>    [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_lowres@pipe-a-tiling-x.html
> 
>   * igt@kms_psr@psr2_cursor_blt:
>     - shard-iclb:         [PASS][27] -> [SKIP][28] ([fdo#109441]) +3 similar issues
>    [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb2/igt@kms_psr@psr2_cursor_blt.html
>    [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb4/igt@kms_psr@psr2_cursor_blt.html
> 
>   * igt@kms_universal_plane@universal-plane-gen9-features-pipe-c:
>     - shard-kbl:          [PASS][29] -> [DMESG-WARN][30] ([i915#1982])
>    [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
>    [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_universal_plane@universal-plane-gen9-features-pipe-c.html
> 
>   * igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted:
>     - shard-tglb:         [PASS][31] -> [DMESG-WARN][32] ([i915#402])
>    [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb6/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
>    [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb7/igt@syncobj_wait@invalid-multi-wait-unsubmitted-submitted.html
> 
>   
> #### Possible fixes ####
> 
>   * {igt@gem_ctx_isolation@preservation-s3@rcs0}:
>     - shard-apl:          [DMESG-WARN][33] ([i915#180]) -> [PASS][34] +2 similar issues
>    [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@gem_ctx_isolation@preservation-s3@rcs0.html
>    [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@gem_ctx_isolation@preservation-s3@rcs0.html
> 
>   * igt@gem_exec_whisper@basic-queues-forked-all:
>     - shard-glk:          [DMESG-WARN][35] ([i915#118] / [i915#95]) -> [PASS][36] +1 similar issue
>    [35]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
>    [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk9/igt@gem_exec_whisper@basic-queues-forked-all.html
> 
>   * igt@gen9_exec_parse@allowed-all:
>     - shard-kbl:          [DMESG-WARN][37] ([i915#1436] / [i915#716]) -> [PASS][38]
>    [37]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl1/igt@gen9_exec_parse@allowed-all.html
>    [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@gen9_exec_parse@allowed-all.html
> 
>   * igt@i915_suspend@debugfs-reader:
>     - shard-kbl:          [INCOMPLETE][39] ([i915#155]) -> [PASS][40]
>    [39]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@i915_suspend@debugfs-reader.html
>    [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl6/igt@i915_suspend@debugfs-reader.html
> 
>   * igt@kms_color@pipe-c-ctm-red-to-blue:
>     - shard-kbl:          [DMESG-WARN][41] ([i915#93] / [i915#95]) -> [PASS][42]
>    [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
>    [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_color@pipe-c-ctm-red-to-blue.html
> 
>   * igt@kms_color@pipe-d-ctm-0-5:
>     - shard-tglb:         [DMESG-WARN][43] ([i915#1149] / [i915#402]) -> [PASS][44]
>    [43]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-tglb2/igt@kms_color@pipe-d-ctm-0-5.html
>    [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-tglb1/igt@kms_color@pipe-d-ctm-0-5.html
> 
>   * igt@kms_cursor_legacy@all-pipes-torture-move:
>     - shard-skl:          [DMESG-WARN][45] ([i915#128]) -> [PASS][46]
>    [45]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_cursor_legacy@all-pipes-torture-move.html
>    [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_cursor_legacy@all-pipes-torture-move.html
> 
>   * {igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2}:
>     - shard-glk:          [DMESG-WARN][47] ([i915#1982]) -> [PASS][48]
>    [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-glk6/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
>    [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-glk8/igt@kms_flip@2x-flip-vs-suspend@ab-hdmi-a1-hdmi-a2.html
> 
>   * igt@kms_flip_tiling@flip-x-tiled:
>     - shard-apl:          [DMESG-WARN][49] ([i915#95]) -> [PASS][50] +26 similar issues
>    [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl7/igt@kms_flip_tiling@flip-x-tiled.html
>    [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_flip_tiling@flip-x-tiled.html
> 
>   * igt@kms_hdr@bpc-switch-suspend:
>     - shard-skl:          [FAIL][51] ([i915#1188]) -> [PASS][52]
>    [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl10/igt@kms_hdr@bpc-switch-suspend.html
>    [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl3/igt@kms_hdr@bpc-switch-suspend.html
> 
>   * igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a:
>     - shard-kbl:          [DMESG-WARN][53] ([i915#180]) -> [PASS][54] +3 similar issues
>    [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
>    [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html
> 
>   * igt@kms_plane@plane-panning-bottom-right-pipe-c-planes:
>     - shard-skl:          [DMESG-WARN][55] ([i915#1982]) -> [PASS][56] +2 similar issues
>    [55]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl6/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
>    [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl5/igt@kms_plane@plane-panning-bottom-right-pipe-c-planes.html
> 
>   * igt@kms_psr@psr2_primary_mmap_cpu:
>     - shard-iclb:         [SKIP][57] ([fdo#109441]) -> [PASS][58] +2 similar issues
>    [57]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html
>    [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html
> 
>   * igt@kms_setmode@basic:
>     - shard-apl:          [FAIL][59] ([i915#31]) -> [PASS][60]
>    [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_setmode@basic.html
>    [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_setmode@basic.html
>     - shard-kbl:          [FAIL][61] ([i915#31]) -> [PASS][62]
>    [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl6/igt@kms_setmode@basic.html
>    [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_setmode@basic.html
> 
>   * {igt@perf@polling-parameterized}:
>     - shard-hsw:          [FAIL][63] ([i915#1542]) -> [PASS][64]
>    [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-hsw6/igt@perf@polling-parameterized.html
>    [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-hsw5/igt@perf@polling-parameterized.html
> 
>   
> #### Warnings ####
> 
>   * igt@i915_pm_dc@dc3co-vpb-simulation:
>     - shard-snb:          [SKIP][65] ([fdo#109271]) -> [INCOMPLETE][66] ([i915#82]) +1 similar issue
>    [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb5/igt@i915_pm_dc@dc3co-vpb-simulation.html
>     - shard-iclb:         [SKIP][67] ([i915#658]) -> [SKIP][68] ([i915#588])
>    [67]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-iclb6/igt@i915_pm_dc@dc3co-vpb-simulation.html
>    [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html
> 
>   * igt@kms_content_protection@atomic:
>     - shard-apl:          [FAIL][69] ([fdo#110321] / [fdo#110336]) -> [TIMEOUT][70] ([i915#1319] / [i915#1635])
>    [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl6/igt@kms_content_protection@atomic.html
>    [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl3/igt@kms_content_protection@atomic.html
> 
>   * igt@kms_content_protection@legacy:
>     - shard-kbl:          [DMESG-FAIL][71] ([fdo#110321]) -> [TIMEOUT][72] ([i915#1319] / [i915#1958])
>    [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl3/igt@kms_content_protection@legacy.html
>    [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl4/igt@kms_content_protection@legacy.html
> 
>   * igt@kms_content_protection@lic:
>     - shard-apl:          [DMESG-FAIL][73] ([fdo#110321] / [i915#95]) -> [TIMEOUT][74] ([i915#1319] / [i915#1635]) +1 similar issue
>    [73]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl2/igt@kms_content_protection@lic.html
>    [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl1/igt@kms_content_protection@lic.html
> 
>   * igt@kms_content_protection@srm:
>     - shard-kbl:          [DMESG-FAIL][75] ([fdo#110321] / [i915#95]) -> [TIMEOUT][76] ([i915#1319])
>    [75]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl2/igt@kms_content_protection@srm.html
>    [76]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl3/igt@kms_content_protection@srm.html
> 
>   * igt@kms_frontbuffer_tracking@fbc-suspend:
>     - shard-kbl:          [DMESG-WARN][77] ([i915#180] / [i915#93] / [i915#95]) -> [DMESG-WARN][78] ([i915#93] / [i915#95])
>    [77]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-kbl7/igt@kms_frontbuffer_tracking@fbc-suspend.html
>     - shard-apl:          [DMESG-WARN][79] ([i915#180] / [i915#95]) -> [DMESG-WARN][80] ([i915#95])
>    [79]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-apl4/igt@kms_frontbuffer_tracking@fbc-suspend.html
>    [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-apl8/igt@kms_frontbuffer_tracking@fbc-suspend.html
> 
>   * igt@kms_plane_alpha_blend@pipe-b-coverage-7efc:
>     - shard-skl:          [DMESG-WARN][81] ([i915#1982]) -> [DMESG-FAIL][82] ([fdo#108145] / [i915#1982])
>    [81]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
>    [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-skl2/igt@kms_plane_alpha_blend@pipe-b-coverage-7efc.html
> 
>   * igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping:
>     - shard-snb:          [SKIP][83] ([fdo#109271]) -> [TIMEOUT][84] ([i915#1958]) +1 similar issue
>    [83]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_8590/shard-snb6/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
>    [84]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/shard-snb1/igt@kms_plane_scaling@pipe-b-scaler-with-clipping-clamping.html
> 
>   
>   {name}: This element is suppressed. This means it is ignored when computing
>           the status of the difference (SUCCESS, WARNING, or FAILURE).
> 
>   [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
>   [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
>   [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
>   [fdo#110321]: https://bugs.freedesktop.org/show_bug.cgi?id=110321
>   [fdo#110336]: https://bugs.freedesktop.org/show_bug.cgi?id=110336
>   [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
>   [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
>   [i915#118]: https://gitlab.freedesktop.org/drm/intel/issues/118
>   [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
>   [i915#128]: https://gitlab.freedesktop.org/drm/intel/issues/128
>   [i915#1319]: https://gitlab.freedesktop.org/drm/intel/issues/1319
>   [i915#1436]: https://gitlab.freedesktop.org/drm/intel/issues/1436
>   [i915#1542]: https://gitlab.freedesktop.org/drm/intel/issues/1542
>   [i915#155]: https://gitlab.freedesktop.org/drm/intel/issues/155
>   [i915#1635]: https://gitlab.freedesktop.org/drm/intel/issues/1635
>   [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
>   [i915#1928]: https://gitlab.freedesktop.org/drm/intel/issues/1928
>   [i915#1930]: https://gitlab.freedesktop.org/drm/intel/issues/1930
>   [i915#1958]: https://gitlab.freedesktop.org/drm/intel/issues/1958
>   [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
>   [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
>   [i915#31]: https://gitlab.freedesktop.org/drm/intel/issues/31
>   [i915#402]: https://gitlab.freedesktop.org/drm/intel/issues/402
>   [i915#46]: https://gitlab.freedesktop.org/drm/intel/issues/46
>   [i915#49]: https://gitlab.freedesktop.org/drm/intel/issues/49
>   [i915#588]: https://gitlab.freedesktop.org/drm/intel/issues/588
>   [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
>   [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
>   [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
>   [i915#82]: https://gitlab.freedesktop.org/drm/intel/issues/82
>   [i915#93]: https://gitlab.freedesktop.org/drm/intel/issues/93
>   [i915#95]: https://gitlab.freedesktop.org/drm/intel/issues/95
> 
> 
> Participating hosts (11 -> 11)
> ------------------------------
> 
>   No changes in participating hosts
> 
> 
> Build changes
> -------------
> 
>   * Linux: CI_DRM_8590 -> Patchwork_17882
> 
>   CI-20190529: 20190529
>   CI_DRM_8590: 91c6f0274b54c89679cd23f6fc65e9fe5922971f @ git://anongit.freedesktop.org/gfx-ci/linux
>   IGT_5695: 53e8c878a6fb5708e63c99403691e8960b86ea9c @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
>   Patchwork_17882: 23fe5e3ae83585e3d4ad9ecdfea368dd42ff6dfb @ git://anongit.freedesktop.org/gfx-ci/linux
>   piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_17882/index.html
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