[Intel-gfx] [PATCH v2 00/12] drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue

[Intel-gfx] [PATCH v2 00/12] drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue

[Imre Deak]

This is v2 of [1] addressing the review comments from Ville. It also
includes a few fixes I noticed during further testing, and a workaround
for the firmware blocking the HPD state update of an active/disconnected
port (stuck in the connected state) until another active/disconnected
port gets disabled (added in the last patch).

Tested on regular and port-sync configs (on ICL/TGL/ADLP) and on
bigjoiner/port-sync+bigjoiner configs (on ADLP).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>

[1] https://lore.kernel.org/all/20230426165305.2049341-1-imre.deak@intel.com/

Imre Deak (12):
  drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration
  drm/i915: Make the CRTC state consistent during sanitize-disabling
  drm/i915: Update connector atomic state before crtc sanitize-disabling
  drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()
  drm/i915: Factor out set_encoder_for_connector()
  drm/i915: Add support for disabling any CRTCs during HW
    readout/sanitization
  drm/i915/dp: Add link training debug and error printing helpers
  drm/i915/dp: Convert link training error to debug message on
    disconnected sink
  drm/i915/dp: Prevent link training fallback on disconnected port
  drm/i915/dp: Factor out intel_dp_get_active_pipes()
  drm/i915: Factor out a helper for handling atomic modeset locks/state
  drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the
    sink disconnects

 drivers/gpu/drm/i915/Makefile                 |   1 +
 drivers/gpu/drm/i915/display/intel_ddi.c      |  77 +++-
 drivers/gpu/drm/i915/display/intel_display.c  |  14 +-
 drivers/gpu/drm/i915/display/intel_display.h  |   1 +
 .../drm/i915/display/intel_display_types.h    |   2 +
 drivers/gpu/drm/i915/display/intel_dp.c       |  81 +++-
 drivers/gpu/drm/i915/display/intel_dp.h       |   3 +
 .../drm/i915/display/intel_dp_link_training.c | 399 +++++++-----------
 .../gpu/drm/i915/display/intel_modeset_lock.c |  50 +++
 .../gpu/drm/i915/display/intel_modeset_lock.h |  33 ++
 .../drm/i915/display/intel_modeset_setup.c    | 316 +++++++++++---
 drivers/gpu/drm/i915/display/intel_tc.c       |  29 ++
 drivers/gpu/drm/i915/display/intel_tc.h       |   1 +
 13 files changed, 676 insertions(+), 331 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_lock.c
 create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_lock.h

-- 
2.37.2

[Intel-gfx] [PATCH v2 01/12] drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration

[Imre Deak]

For a bigjoiner configuration display->crtc_disable() will be called
first for the slave CRTCs and then for the master CRTC. However slave
CRTCs will be actually disabled only after the master CRTC is disabled
(from the encoder disable hooks called with the master CRTC state).
Hence the slave PIPEDMCs can be disabled only after the master CRTC is
disabled, make this so.

intel_encoders_post_pll_disable() must be called only for the master
CRTC, as for the other two encoder disable hooks. While at it fix this
up as well. This didn't cause a problem, since
intel_encoders_post_pll_disable() will call the corresponding hook only
for an encoder/connector connected to the given CRTC, however slave
CRTCs will have no associated encoder/connector.

Fixes: 3af2ff0840be ("drm/i915: Enable a PIPEDMC whenever its corresponding pipe is enabled")
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 3d3483e6f8363..ca95cf6764c04 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1700,9 +1700,17 @@ static void hsw_crtc_disable(struct intel_atomic_state *state,
 
 	intel_disable_shared_dpll(old_crtc_state);
 
-	intel_encoders_post_pll_disable(state, crtc);
+	if (!intel_crtc_is_bigjoiner_slave(old_crtc_state)) {
+		struct intel_crtc *slave_crtc;
+
+		intel_encoders_post_pll_disable(state, crtc);
 
-	intel_dmc_disable_pipe(i915, crtc->pipe);
+		intel_dmc_disable_pipe(i915, crtc->pipe);
+
+		for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc,
+						 intel_crtc_bigjoiner_slave_pipes(old_crtc_state))
+			intel_dmc_disable_pipe(i915, slave_crtc->pipe);
+	}
 }
 
 static void i9xx_pfit_enable(const struct intel_crtc_state *crtc_state)
-- 
2.37.2

[Intel-gfx] [PATCH v2 02/12] drm/i915: Make the CRTC state consistent during sanitize-disabling

[Imre Deak]

Make sure that the CRTC state is reset correctly, as expected after
disabling the CRTC.

In particular this change will:
- Zero all the CSC blob pointers after intel_crtc_free_hw_state()
  has freed them.
- Zero the shared DPLL and port PLL pointers and clear the
  corresponding active flags in the PLL state.
- Reset all the transcoder and pipe fields.

v2:
- Reset fully the CRTC state. (Ville)
- Clear pipe active flags in the DPLL state.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_modeset_setup.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index eefa4018dc0c2..2ca66e49d8863 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -88,13 +88,14 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 	crtc->active = false;
 	crtc->base.enabled = false;
 
-	drm_WARN_ON(&i915->drm,
-		    drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0);
-	crtc_state->uapi.active = false;
-	crtc_state->uapi.connector_mask = 0;
-	crtc_state->uapi.encoder_mask = 0;
+	if (crtc_state->shared_dpll) {
+		crtc_state->shared_dpll->state.pipe_mask &= ~BIT(pipe);
+		crtc_state->shared_dpll->active_mask &= ~BIT(pipe);
+	}
+
+	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
 	intel_crtc_free_hw_state(crtc_state);
-	memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
+	intel_crtc_state_reset(crtc_state, crtc);
 
 	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
 		encoder->base.crtc = NULL;
-- 
2.37.2

[Intel-gfx] [PATCH v2 03/12] drm/i915: Update connector atomic state before crtc sanitize-disabling

[Imre Deak]

During HW state readout/sanitization an up-to-date connector atomic
state will be required by a follow-up patch, which can disable CRTCs
with an encoder (and calling the correct encoder hooks happens via the
connector atomic state encoder pointer). So update the connector state
already before the CRTC sanitize/disable step. For now this doesn't make
a difference, since intel_modeset_update_connector_atomic_state() will
update/enable the atomic state only for connectors that have an enabled
encoder/CRTC. Such CRTCs/encoders will not be affected by
intel_sanitize_crtc().

v2: Add comment about why the connector state needs to be up-to-date.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_modeset_setup.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 2ca66e49d8863..c1a4a7bcc56ae 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -701,6 +701,12 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
 	for_each_intel_encoder(&i915->drm, encoder)
 		intel_sanitize_encoder(encoder);
 
+	/*
+	 * Sanitizing CRTCs needs their connector atomic state to be
+	 * up-to-date, so ensure that already here.
+	 */
+	intel_modeset_update_connector_atomic_state(i915);
+
 	for_each_intel_crtc(&i915->drm, crtc) {
 		struct intel_crtc_state *crtc_state =
 			to_intel_crtc_state(crtc->base.state);
@@ -709,8 +715,6 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
 		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
 	}
 
-	intel_modeset_update_connector_atomic_state(i915);
-
 	intel_dpll_sanitize_state(i915);
 
 	intel_wm_get_hw_state(i915);
-- 
2.37.2

[Intel-gfx] [PATCH v2 04/12] drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()

[Imre Deak]

Split calling the CRTC/encoder disabling hooks and updating the CRTC and
DPLL object states from updating the CRTC and atomic state and other
global state (BW, CDCLK, DBUF) into separate functions. When disabling a
bigjoiner configuration the latter step can be done only after all the
linked pipes are disabled, so this change prepares for that.

No functional changes.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../drm/i915/display/intel_modeset_setup.c    | 33 ++++++++++++++-----
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index c1a4a7bcc56ae..922ea5ddd0c5b 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -30,17 +30,10 @@
 #include "intel_wm.h"
 #include "skl_watermark.h"
 
-static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
-					struct drm_modeset_acquire_ctx *ctx)
+static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
+					      struct drm_modeset_acquire_ctx *ctx)
 {
-	struct intel_encoder *encoder;
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
-	struct intel_bw_state *bw_state =
-		to_intel_bw_state(i915->display.bw.obj.state);
-	struct intel_cdclk_state *cdclk_state =
-		to_intel_cdclk_state(i915->display.cdclk.obj.state);
-	struct intel_dbuf_state *dbuf_state =
-		to_intel_dbuf_state(i915->display.dbuf.obj.state);
 	struct intel_crtc_state *crtc_state =
 		to_intel_crtc_state(crtc->base.state);
 	struct intel_plane *plane;
@@ -92,6 +85,21 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 		crtc_state->shared_dpll->state.pipe_mask &= ~BIT(pipe);
 		crtc_state->shared_dpll->active_mask &= ~BIT(pipe);
 	}
+}
+
+static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
+{
+	struct intel_encoder *encoder;
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_bw_state *bw_state =
+		to_intel_bw_state(i915->display.bw.obj.state);
+	struct intel_cdclk_state *cdclk_state =
+		to_intel_cdclk_state(i915->display.cdclk.obj.state);
+	struct intel_dbuf_state *dbuf_state =
+		to_intel_dbuf_state(i915->display.dbuf.obj.state);
+	struct intel_crtc_state *crtc_state =
+		to_intel_crtc_state(crtc->base.state);
+	enum pipe pipe = crtc->pipe;
 
 	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
 	intel_crtc_free_hw_state(crtc_state);
@@ -115,6 +123,13 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 	bw_state->num_active_planes[pipe] = 0;
 }
 
+static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
+					struct drm_modeset_acquire_ctx *ctx)
+{
+	intel_crtc_disable_noatomic_begin(crtc, ctx);
+	intel_crtc_disable_noatomic_complete(crtc);
+}
+
 static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
 {
 	struct intel_connector *connector;
-- 
2.37.2

[Intel-gfx] [PATCH v2 05/12] drm/i915: Factor out set_encoder_for_connector()

[Imre Deak]

Factor out a function setting the encoder and CRTC in the connector
atomic state, required by a follow up patch.

No functional changes.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../drm/i915/display/intel_modeset_setup.c    | 28 +++++++++++++------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 922ea5ddd0c5b..9848d20582963 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -87,6 +87,24 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
 	}
 }
 
+static void set_encoder_for_connector(struct intel_connector *connector,
+				      struct intel_encoder *encoder)
+{
+	struct drm_connector_state *conn_state = connector->base.state;
+
+	if (conn_state->crtc)
+		drm_connector_put(&connector->base);
+
+	if (encoder) {
+		conn_state->best_encoder = &encoder->base;
+		conn_state->crtc = encoder->base.crtc;
+		drm_connector_get(&connector->base);
+	} else {
+		conn_state->best_encoder = NULL;
+		conn_state->crtc = NULL;
+	}
+}
+
 static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 {
 	struct intel_encoder *encoder;
@@ -141,8 +159,7 @@ static void intel_modeset_update_connector_atomic_state(struct drm_i915_private
 		struct intel_encoder *encoder =
 			to_intel_encoder(connector->base.encoder);
 
-		if (conn_state->crtc)
-			drm_connector_put(&connector->base);
+		set_encoder_for_connector(connector, encoder);
 
 		if (encoder) {
 			struct intel_crtc *crtc =
@@ -150,14 +167,7 @@ static void intel_modeset_update_connector_atomic_state(struct drm_i915_private
 			const struct intel_crtc_state *crtc_state =
 				to_intel_crtc_state(crtc->base.state);
 
-			conn_state->best_encoder = &encoder->base;
-			conn_state->crtc = &crtc->base;
 			conn_state->max_bpc = (crtc_state->pipe_bpp ?: 24) / 3;
-
-			drm_connector_get(&connector->base);
-		} else {
-			conn_state->best_encoder = NULL;
-			conn_state->crtc = NULL;
 		}
 	}
 	drm_connector_list_iter_end(&conn_iter);
-- 
2.37.2

[Intel-gfx] [PATCH v2 06/12] drm/i915: Add support for disabling any CRTCs during HW readout/sanitization

[Imre Deak]

During HW readout/sanitization CRTCs can be disabled only if they don't
have an attached encoder (and so the encoder disable hooks don't need to
be called). An upcoming patch will need to disable CRTCs also with an
attached an encoder, so add support for this.

For bigjoiner configs the encoder disabling hooks require the slave CRTC
states, so add these too to the atomic state. Since the connector atomic
state is already up-to-date when the CRTC is disabled the connector
state needs to be updated (reset) after the CRTC is disabled, make this
so. Follow the proper order of disabling first all bigjoiner slaves,
then any port synced CRTC slaves followed by the CRTC originally
requested to be disabled.

v2:
- Fix calculating the bigjoiner_masters mask in a port sync config,
  (Ville)
- Keep _noatomic suffix in intel_crtc_disable_noatomic(). (Ville)
- Rebase on full CRTC state reset in this patchset, not requiring
  resetting the bigjoiner state separately and (instead) resetting
  the full atomic CRTC and related global state after all linked
  pipes got disabled.
- Disable portsync slaves before a portsync master.
- Disable a portsync master if a linked portsync slave is disabled.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
 drivers/gpu/drm/i915/display/intel_display.h  |   1 +
 .../drm/i915/display/intel_modeset_setup.c    | 159 ++++++++++++++++--
 3 files changed, 151 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index ca95cf6764c04..f567c6bbc2a05 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -225,7 +225,7 @@ is_trans_port_sync_slave(const struct intel_crtc_state *crtc_state)
 	return crtc_state->master_transcoder != INVALID_TRANSCODER;
 }
 
-static bool
+bool
 is_trans_port_sync_master(const struct intel_crtc_state *crtc_state)
 {
 	return crtc_state->sync_mode_slaves_mask != 0;
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index ac95961f68ba7..3ecc5649a73ab 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -407,6 +407,7 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
 				bool bigjoiner);
 enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port);
 bool is_trans_port_sync_mode(const struct intel_crtc_state *state);
+bool is_trans_port_sync_master(const struct intel_crtc_state *state);
 bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state);
 bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state);
 u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state);
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 9848d20582963..1e10580e5ab31 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -38,9 +38,8 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
 		to_intel_crtc_state(crtc->base.state);
 	struct intel_plane *plane;
 	struct drm_atomic_state *state;
-	struct intel_crtc_state *temp_crtc_state;
+	struct intel_crtc *temp_crtc;
 	enum pipe pipe = crtc->pipe;
-	int ret;
 
 	if (!crtc_state->hw.active)
 		return;
@@ -65,10 +64,17 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
 	to_intel_atomic_state(state)->internal = true;
 
 	/* Everything's already locked, -EDEADLK can't happen. */
-	temp_crtc_state = intel_atomic_get_crtc_state(state, crtc);
-	ret = drm_atomic_add_affected_connectors(state, &crtc->base);
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
+					 BIT(pipe) |
+					 intel_crtc_bigjoiner_slave_pipes(crtc_state)) {
+		struct intel_crtc_state *temp_crtc_state =
+			intel_atomic_get_crtc_state(state, temp_crtc);
+		int ret;
 
-	drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
+		ret = drm_atomic_add_affected_connectors(state, &temp_crtc->base);
+
+		drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
+	}
 
 	i915->display.funcs.display->crtc_disable(to_intel_atomic_state(state), crtc);
 
@@ -105,9 +111,38 @@ static void set_encoder_for_connector(struct intel_connector *connector,
 	}
 }
 
-static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
+static void reset_encoder_connector_state(struct intel_encoder *encoder)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	struct intel_connector *connector;
+	struct drm_connector_list_iter conn_iter;
+
+	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
+	for_each_intel_connector_iter(connector, &conn_iter) {
+		if (connector->base.encoder != &encoder->base)
+			continue;
+
+		set_encoder_for_connector(connector, NULL);
+
+		connector->base.dpms = DRM_MODE_DPMS_OFF;
+		connector->base.encoder = NULL;
+	}
+	drm_connector_list_iter_end(&conn_iter);
+}
+
+static void reset_crtc_encoder_state(struct intel_crtc *crtc)
 {
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_encoder *encoder;
+
+	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
+		reset_encoder_connector_state(encoder);
+		encoder->base.crtc = NULL;
+	}
+}
+
+static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
+{
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_bw_state *bw_state =
 		to_intel_bw_state(i915->display.bw.obj.state);
@@ -123,8 +158,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	intel_crtc_free_hw_state(crtc_state);
 	intel_crtc_state_reset(crtc_state, crtc);
 
-	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
-		encoder->base.crtc = NULL;
+	reset_crtc_encoder_state(crtc);
 
 	intel_fbc_disable(crtc);
 	intel_update_watermarks(i915);
@@ -141,11 +175,116 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	bw_state->num_active_planes[pipe] = 0;
 }
 
+/*
+ * Return all the pipes using a transcoder in @transcoder_mask.
+ * For bigjoiner configs return only the bigjoiner master.
+ */
+static u32 get_transcoder_pipes(struct drm_i915_private *i915,
+				u32 transcoder_mask)
+{
+	struct intel_crtc *temp_crtc;
+	u32 pipes = 0;
+
+	for_each_intel_crtc(&i915->drm, temp_crtc) {
+		struct intel_crtc_state *temp_crtc_state =
+			to_intel_crtc_state(temp_crtc->base.state);
+
+		if (temp_crtc_state->cpu_transcoder == INVALID_TRANSCODER)
+			continue;
+
+		if (intel_crtc_is_bigjoiner_slave(temp_crtc_state))
+			continue;
+
+		if (transcoder_mask & BIT(temp_crtc_state->cpu_transcoder))
+			pipes |= BIT(temp_crtc->pipe);
+	}
+
+	return pipes;
+}
+
+/*
+ * Return the port sync master and slave pipes linked to @crtc.
+ * For bigjoiner configs return only the bigjoiner master pipes.
+ */
+static void get_portsync_pipes(struct intel_crtc *crtc,
+			       u32 *master_pipe_mask, u32 *slave_pipes_mask)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_crtc_state *crtc_state =
+		to_intel_crtc_state(crtc->base.state);
+	struct intel_crtc *master_crtc;
+	struct intel_crtc_state *master_crtc_state;
+	enum transcoder master_transcoder;
+
+	if (!is_trans_port_sync_mode(crtc_state)) {
+		*master_pipe_mask = BIT(crtc->pipe);
+		*slave_pipes_mask = 0;
+
+		return;
+	}
+
+	if (is_trans_port_sync_master(crtc_state))
+		master_transcoder = crtc_state->cpu_transcoder;
+	else
+		master_transcoder = crtc_state->master_transcoder;
+
+	*master_pipe_mask = get_transcoder_pipes(i915, BIT(master_transcoder));
+	drm_WARN_ON(&i915->drm, hweight32(*master_pipe_mask) != 1);
+
+	master_crtc = intel_crtc_for_pipe(i915, ffs(*master_pipe_mask) - 1);
+	master_crtc_state = to_intel_crtc_state(master_crtc->base.state);
+	*slave_pipes_mask = get_transcoder_pipes(i915, master_crtc_state->sync_mode_slaves_mask);
+}
+
+static u32 get_bigjoiner_slave_pipes(struct drm_i915_private *i915, u32 master_pipes_mask)
+{
+	struct intel_crtc *master_crtc;
+	u32 pipes = 0;
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, master_crtc, master_pipes_mask) {
+		struct intel_crtc_state *master_crtc_state =
+			to_intel_crtc_state(master_crtc->base.state);
+
+		pipes |= intel_crtc_bigjoiner_slave_pipes(master_crtc_state);
+	}
+
+	return pipes;
+}
+
 static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 					struct drm_modeset_acquire_ctx *ctx)
 {
-	intel_crtc_disable_noatomic_begin(crtc, ctx);
-	intel_crtc_disable_noatomic_complete(crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	u32 portsync_master_mask;
+	u32 portsync_slaves_mask;
+	u32 bigjoiner_slaves_mask;
+	struct intel_crtc *temp_crtc;
+
+	/* TODO: Add support for MST */
+	get_portsync_pipes(crtc, &portsync_master_mask, &portsync_slaves_mask);
+	bigjoiner_slaves_mask = get_bigjoiner_slave_pipes(i915,
+							  portsync_master_mask |
+							  portsync_slaves_mask);
+
+	drm_WARN_ON(&i915->drm,
+		    portsync_master_mask & portsync_slaves_mask ||
+		    portsync_master_mask & bigjoiner_slaves_mask ||
+		    portsync_slaves_mask & bigjoiner_slaves_mask);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, bigjoiner_slaves_mask)
+		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_slaves_mask)
+		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_master_mask)
+		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
+					 bigjoiner_slaves_mask |
+					 portsync_slaves_mask |
+					 portsync_master_mask)
+		intel_crtc_disable_noatomic_complete(temp_crtc);
 }
 
 static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
-- 
2.37.2

[Intel-gfx] [PATCH v2 07/12] drm/i915/dp: Add link training debug and error printing helpers

[Imre Deak]

Add functions for printing link training debug and error messages, both
to prepare for the next patch, which downgrades an error to a debug
message if the sink is disconnected and to remove some code duplication.

v2: (Ville)
- Always print the connector prefix.
- Preserve the drm_dbg_kms() debug category.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../drm/i915/display/intel_dp_link_training.c | 387 +++++++-----------
 1 file changed, 140 insertions(+), 247 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index e92c62bcc9b85..f83944eaac128 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -26,6 +26,43 @@
 #include "intel_dp.h"
 #include "intel_dp_link_training.h"
 
+__printf(4, 5)
+static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
+		   bool is_error, const char *format, ...)
+{
+	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+	struct intel_connector *connector = intel_dp->attached_connector;
+	struct va_format vaf;
+	va_list args;
+
+	if (drm_WARN_ON(&i915->drm, !connector))
+		return;
+
+	va_start(args, format);
+	vaf.fmt = format;
+	vaf.va = &args;
+
+	if (is_error)
+		drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
+			connector->base.base.id, connector->base.name,
+			encoder->base.base.id, encoder->base.name,
+			drm_dp_phy_name(dp_phy),
+			&vaf);
+	else
+		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
+			    connector->base.base.id, connector->base.name,
+			    encoder->base.base.id, encoder->base.name,
+			    drm_dp_phy_name(dp_phy),
+			    &vaf);
+}
+
+#define lt_err(intel_dp, dp_phy, format, ...) \
+	lt_msg(intel_dp, dp_phy, true, format, ## __VA_ARGS__)
+
+#define lt_dbg(intel_dp, dp_phy, format, ...) \
+	lt_msg(intel_dp, dp_phy, false, format, ## __VA_ARGS__)
+
 static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
 {
 	memset(intel_dp->lttpr_common_caps, 0, sizeof(intel_dp->lttpr_common_caps));
@@ -47,29 +84,21 @@ static void intel_dp_read_lttpr_phy_caps(struct intel_dp *intel_dp,
 					 const u8 dpcd[DP_RECEIVER_CAP_SIZE],
 					 enum drm_dp_phy dp_phy)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy);
 
 	if (drm_dp_read_lttpr_phy_caps(&intel_dp->aux, dpcd, dp_phy, phy_caps) < 0) {
-		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-			    "[ENCODER:%d:%s][%s] failed to read the PHY caps\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy));
+		lt_dbg(intel_dp, dp_phy, "failed to read the PHY caps\n");
 		return;
 	}
 
-	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-		    "[ENCODER:%d:%s][%s] PHY capabilities: %*ph\n",
-		    encoder->base.base.id, encoder->base.name,
-		    drm_dp_phy_name(dp_phy),
-		    (int)sizeof(intel_dp->lttpr_phy_caps[0]),
-		    phy_caps);
+	lt_dbg(intel_dp, dp_phy, "PHY capabilities: %*ph\n",
+	       (int)sizeof(intel_dp->lttpr_phy_caps[0]),
+	       phy_caps);
 }
 
 static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
 					    const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	int ret;
 
 	ret = drm_dp_read_lttpr_common_caps(&intel_dp->aux, dpcd,
@@ -77,11 +106,9 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
 	if (ret < 0)
 		goto reset_caps;
 
-	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-		    "[ENCODER:%d:%s] LTTPR common capabilities: %*ph\n",
-		    encoder->base.base.id, encoder->base.name,
-		    (int)sizeof(intel_dp->lttpr_common_caps),
-		    intel_dp->lttpr_common_caps);
+	lt_dbg(intel_dp, DP_PHY_DPRX, "LTTPR common capabilities: %*ph\n",
+	       (int)sizeof(intel_dp->lttpr_common_caps),
+	       intel_dp->lttpr_common_caps);
 
 	/* The minimum value of LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV is 1.4 */
 	if (intel_dp->lttpr_common_caps[0] < 0x14)
@@ -105,8 +132,6 @@ intel_dp_set_lttpr_transparent_mode(struct intel_dp *intel_dp, bool enable)
 
 static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	int lttpr_count;
 	int i;
 
@@ -138,9 +163,8 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
 		return 0;
 
 	if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) {
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n",
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+		       "Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n");
 
 		intel_dp_set_lttpr_transparent_mode(intel_dp, true);
 		intel_dp_reset_lttpr_count(intel_dp);
@@ -409,26 +433,22 @@ intel_dp_get_adjust_train(struct intel_dp *intel_dp,
 			  enum drm_dp_phy dp_phy,
 			  const u8 link_status[DP_LINK_STATUS_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	int lane;
 
 	if (intel_dp_is_uhbr(crtc_state)) {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
-			    "TX FFE request: " TRAIN_REQ_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_REQ_TX_FFE_ARGS(link_status));
+		lt_dbg(intel_dp, dp_phy,
+		       "128b/132b, lanes: %d, "
+		       "TX FFE request: " TRAIN_REQ_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_REQ_TX_FFE_ARGS(link_status));
 	} else {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
-			    "vswing request: " TRAIN_REQ_FMT ", "
-			    "pre-emphasis request: " TRAIN_REQ_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_REQ_VSWING_ARGS(link_status),
-			    TRAIN_REQ_PREEMPH_ARGS(link_status));
+		lt_dbg(intel_dp, dp_phy,
+		       "8b/10b, lanes: %d, "
+		       "vswing request: " TRAIN_REQ_FMT ", "
+		       "pre-emphasis request: " TRAIN_REQ_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_REQ_VSWING_ARGS(link_status),
+		       TRAIN_REQ_PREEMPH_ARGS(link_status));
 	}
 
 	for (lane = 0; lane < 4; lane++)
@@ -487,16 +507,11 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
 				       enum drm_dp_phy dp_phy,
 				       u8 dp_train_pat)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
 
 	if (train_pat != DP_TRAINING_PATTERN_DISABLE)
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s][%s] Using DP training pattern TPS%c\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    dp_training_pattern_name(train_pat));
+		lt_dbg(intel_dp, dp_phy, "Using DP training pattern TPS%c\n",
+		       dp_training_pattern_name(train_pat));
 
 	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
 }
@@ -531,24 +546,21 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
 				enum drm_dp_phy dp_phy)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 
 	if (intel_dp_is_uhbr(crtc_state)) {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
-			    "TX FFE presets: " TRAIN_SET_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
+		lt_dbg(intel_dp, dp_phy,
+		       "128b/132b, lanes: %d, "
+		       "TX FFE presets: " TRAIN_SET_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
 	} else {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
-			    "vswing levels: " TRAIN_SET_FMT ", "
-			    "pre-emphasis levels: " TRAIN_SET_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
-			    TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
+		lt_dbg(intel_dp, dp_phy,
+		       "8b/10b, lanes: %d, "
+		       "vswing levels: " TRAIN_SET_FMT ", "
+		       "pre-emphasis levels: " TRAIN_SET_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
+		       TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
 	}
 
 	if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy))
@@ -677,8 +689,6 @@ static bool
 intel_dp_prepare_link_train(struct intel_dp *intel_dp,
 			    const struct intel_crtc_state *crtc_state)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 link_bw, rate_select;
 
 	if (intel_dp->prepare_link_retrain)
@@ -699,24 +709,21 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp,
 	 * link rates are not stable.
 	 */
 	if (!link_bw) {
-		struct intel_connector *connector = intel_dp->attached_connector;
 		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
 
-		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Reloading eDP link rates\n",
-			    connector->base.base.id, connector->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Reloading eDP link rates\n");
 
 		drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,
 				 sink_rates, sizeof(sink_rates));
 	}
 
 	if (link_bw)
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] Using LINK_BW_SET value %02x\n",
-			    encoder->base.base.id, encoder->base.name, link_bw);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Using LINK_BW_SET value %02x\n",
+		       link_bw);
 	else
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] Using LINK_RATE_SET value %02x\n",
-			    encoder->base.base.id, encoder->base.name, rate_select);
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+			    "Using LINK_RATE_SET value %02x\n",
+			    rate_select);
 	/*
 	 * Spec DP2.1 Section 3.5.2.16
 	 * Prior to LT DPTX should set 128b/132b DP Channel coding and then set link rate
@@ -758,15 +765,10 @@ void
 intel_dp_dump_link_status(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
 			  const u8 link_status[DP_LINK_STATUS_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
-	drm_dbg_kms(&i915->drm,
-		    "[ENCODER:%d:%s][%s] ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
-		    encoder->base.base.id, encoder->base.name,
-		    drm_dp_phy_name(dp_phy),
-		    link_status[0], link_status[1], link_status[2],
-		    link_status[3], link_status[4], link_status[5]);
+	lt_dbg(intel_dp, dp_phy,
+	       "ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
+	       link_status[0], link_status[1], link_status[2],
+	       link_status[3], link_status[4], link_status[5]);
 }
 
 /*
@@ -778,8 +780,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 				      const struct intel_crtc_state *crtc_state,
 				      enum drm_dp_phy dp_phy)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 old_link_status[DP_LINK_STATUS_SIZE] = {};
 	int voltage_tries, cr_tries, max_cr_tries;
 	u8 link_status[DP_LINK_STATUS_SIZE];
@@ -794,9 +794,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 	if (!intel_dp_reset_link_train(intel_dp, crtc_state, dp_phy,
 				       DP_TRAINING_PATTERN_1 |
 				       DP_LINK_SCRAMBLING_DISABLE)) {
-		drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to enable link training\n",
-			encoder->base.base.id, encoder->base.name,
-			drm_dp_phy_name(dp_phy));
+		lt_err(intel_dp, dp_phy, "Failed to enable link training\n");
 		return false;
 	}
 
@@ -819,35 +817,24 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 
 		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
 						     link_status) < 0) {
-			drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to get link status\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
 			return false;
 		}
 
 		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Clock recovery OK\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Clock recovery OK\n");
 			return true;
 		}
 
 		if (voltage_tries == 5) {
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Same voltage tried 5 times\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Same voltage tried 5 times\n");
 			return false;
 		}
 
 		if (max_vswing_reached) {
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Max Voltage Swing reached\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Max Voltage Swing reached\n");
 			return false;
 		}
 
@@ -855,10 +842,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
 					  link_status);
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s][%s] Failed to update link training\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
 			return false;
 		}
 
@@ -874,10 +858,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 	}
 
 	intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-	drm_err(&i915->drm,
-		"[ENCODER:%d:%s][%s] Failed clock recovery %d times, giving up!\n",
-		encoder->base.base.id, encoder->base.name,
-		drm_dp_phy_name(dp_phy), max_cr_tries);
+	lt_err(intel_dp, dp_phy, "Failed clock recovery %d times, giving up!\n",
+	       max_cr_tries);
 
 	return false;
 }
@@ -911,11 +893,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
 		return DP_TRAINING_PATTERN_4;
 	} else if (crtc_state->port_clock == 810000) {
 		if (!source_tps4)
-			drm_dbg_kms(&i915->drm,
-				    "8.1 Gbps link rate without source TPS4 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       "8.1 Gbps link rate without source TPS4 support\n");
 		if (!sink_tps4)
-			drm_dbg_kms(&i915->drm,
-				    "8.1 Gbps link rate without sink TPS4 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       "8.1 Gbps link rate without sink TPS4 support\n");
 	}
 
 	/*
@@ -929,11 +911,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
 		return  DP_TRAINING_PATTERN_3;
 	} else if (crtc_state->port_clock >= 540000) {
 		if (!source_tps3)
-			drm_dbg_kms(&i915->drm,
-				    ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
 		if (!sink_tps3)
-			drm_dbg_kms(&i915->drm,
-				    ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
 	}
 
 	return DP_TRAINING_PATTERN_2;
@@ -949,8 +931,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 					    const struct intel_crtc_state *crtc_state,
 					    enum drm_dp_phy dp_phy)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	int tries;
 	u32 training_pattern;
 	u8 link_status[DP_LINK_STATUS_SIZE];
@@ -969,10 +949,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 	/* channel equalization */
 	if (!intel_dp_set_link_train(intel_dp, crtc_state, dp_phy,
 				     training_pattern)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s][%s] Failed to start channel equalization\n",
-			encoder->base.base.id, encoder->base.name,
-			drm_dp_phy_name(dp_phy));
+		lt_err(intel_dp, dp_phy, "Failed to start channel equalization\n");
 		return false;
 	}
 
@@ -981,10 +958,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 
 		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
 						     link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s][%s] Failed to get link status\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
 			break;
 		}
 
@@ -992,21 +966,15 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 		if (!drm_dp_clock_recovery_ok(link_status,
 					      crtc_state->lane_count)) {
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Clock recovery check failed, cannot "
-				    "continue channel equalization\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy,
+			       "Clock recovery check failed, cannot continue channel equalization\n");
 			break;
 		}
 
 		if (drm_dp_channel_eq_ok(link_status,
 					 crtc_state->lane_count)) {
 			channel_eq = true;
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Channel EQ done. DP Training successful\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Channel EQ done. DP Training successful\n");
 			break;
 		}
 
@@ -1014,10 +982,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
 					  link_status);
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s][%s] Failed to update link training\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
 			break;
 		}
 	}
@@ -1025,10 +990,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 	/* Try 5 times, else fail and try at lower BW */
 	if (tries == 5) {
 		intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s][%s] Channel equalization failed 5 times\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy));
+		lt_dbg(intel_dp, dp_phy, "Channel equalization failed 5 times\n");
 	}
 
 	return channel_eq;
@@ -1047,13 +1009,12 @@ static int
 intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
 			    const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	u8 sink_status;
 	int ret;
 
 	ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_SINK_STATUS, &sink_status);
 	if (ret != 1) {
-		drm_dbg_kms(&i915->drm, "Failed to read sink status\n");
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Failed to read sink status\n");
 		return ret < 0 ? ret : -EIO;
 	}
 
@@ -1079,9 +1040,6 @@ intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
 void intel_dp_stop_link_train(struct intel_dp *intel_dp,
 			      const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-
 	intel_dp->link_trained = true;
 
 	intel_dp_disable_dpcd_training_pattern(intel_dp, DP_PHY_DPRX);
@@ -1090,9 +1048,7 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp,
 
 	if (intel_dp_is_uhbr(crtc_state) &&
 	    wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] 128b/132b intra-hop not clearing\n",
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clearing\n");
 	}
 }
 
@@ -1101,8 +1057,6 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
 			const struct intel_crtc_state *crtc_state,
 			enum drm_dp_phy dp_phy)
 {
-	struct intel_connector *connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	bool ret = false;
 
 	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state, dp_phy))
@@ -1114,13 +1068,10 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
 	ret = true;
 
 out:
-	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-		    "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] Link Training %s at link rate = %d, lane count = %d\n",
-		    connector->base.base.id, connector->base.name,
-		    encoder->base.base.id, encoder->base.name,
-		    drm_dp_phy_name(dp_phy),
-		    ret ? "passed" : "failed",
-		    crtc_state->port_clock, crtc_state->lane_count);
+	lt_dbg(intel_dp, dp_phy,
+	       "Link Training %s at link rate = %d, lane count = %d\n",
+	       ret ? "passed" : "failed",
+	       crtc_state->port_clock, crtc_state->lane_count);
 
 	return ret;
 }
@@ -1129,13 +1080,10 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
 						     const struct intel_crtc_state *crtc_state)
 {
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 
 	if (intel_dp->hobl_active) {
-		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-			    "[ENCODER:%d:%s] Link Training failed with HOBL active, "
-			    "not enabling it from now on",
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+		       "Link Training failed with HOBL active, not enabling it from now on\n");
 		intel_dp->hobl_failed = true;
 	} else if (intel_dp_get_link_train_fallback_values(intel_dp,
 							   crtc_state->port_clock,
@@ -1182,8 +1130,6 @@ static bool
 intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 			  const struct intel_crtc_state *crtc_state)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	int delay_us;
 	int try, max_tries = 20;
@@ -1198,9 +1144,7 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 	 */
 	if (!intel_dp_reset_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
 				       DP_TRAINING_PATTERN_1)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to start 128b/132b TPS1\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS1\n");
 		return false;
 	}
 
@@ -1208,27 +1152,21 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 
 	/* Read the initial TX FFE settings. */
 	if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to read TX FFE presets\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to read TX FFE presets\n");
 		return false;
 	}
 
 	/* Update signal levels and training set as requested. */
 	intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
 	if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to set initial TX FFE settings\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to set initial TX FFE settings\n");
 		return false;
 	}
 
 	/* Start transmitting 128b/132b TPS2. */
 	if (!intel_dp_set_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
 				     DP_TRAINING_PATTERN_2)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2\n");
 		return false;
 	}
 
@@ -1245,32 +1183,25 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 		delay_us = drm_dp_128b132b_read_aux_rd_interval(&intel_dp->aux);
 
 		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to read link status\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_link_training_failed(link_status)) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Downstream link training failure\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX,
+			       "Downstream link training failure\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_lane_channel_eq_done(link_status, crtc_state->lane_count)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s] Lane channel eq done\n",
-				    encoder->base.base.id, encoder->base.name);
+			lt_dbg(intel_dp, DP_PHY_DPRX, "Lane channel eq done\n");
 			break;
 		}
 
 		if (timeout) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Lane channel eq timeout\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Lane channel eq timeout\n");
 			return false;
 		}
 
@@ -1280,18 +1211,14 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 		/* Update signal levels and training set as requested. */
 		intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to update TX FFE settings\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to update TX FFE settings\n");
 			return false;
 		}
 	}
 
 	if (try == max_tries) {
 		intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Max loop count reached\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Max loop count reached\n");
 		return false;
 	}
 
@@ -1300,32 +1227,24 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 			timeout = true; /* try one last time after deadline */
 
 		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to read link status\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_link_training_failed(link_status)) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Downstream link training failure\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_eq_interlane_align_done(link_status)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s] Interlane align done\n",
-				    encoder->base.base.id, encoder->base.name);
+			lt_dbg(intel_dp, DP_PHY_DPRX, "Interlane align done\n");
 			break;
 		}
 
 		if (timeout) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Interlane align timeout\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Interlane align timeout\n");
 			return false;
 		}
 
@@ -1343,16 +1262,12 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
 			   const struct intel_crtc_state *crtc_state,
 			   int lttpr_count)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	unsigned long deadline;
 
 	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TRAINING_PATTERN_SET,
 			       DP_TRAINING_PATTERN_2_CDS) != 1) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2 CDS\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2 CDS\n");
 		return false;
 	}
 
@@ -1368,34 +1283,26 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
 		usleep_range(2000, 3000);
 
 		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to read link status\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_eq_interlane_align_done(link_status) &&
 		    drm_dp_128b132b_cds_interlane_align_done(link_status) &&
 		    drm_dp_128b132b_lane_symbol_locked(link_status, crtc_state->lane_count)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s] CDS interlane align done\n",
-				    encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "CDS interlane align done\n");
 			break;
 		}
 
 		if (drm_dp_128b132b_link_training_failed(link_status)) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Downstream link training failure\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
 			return false;
 		}
 
 		if (timeout) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] CDS timeout\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "CDS timeout\n");
 			return false;
 		}
 	}
@@ -1411,15 +1318,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
 			     const struct intel_crtc_state *crtc_state,
 			     int lttpr_count)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	struct intel_connector *connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	bool passed = false;
 
 	if (wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] 128b/132b intra-hop not clear\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clear\n");
 		return false;
 	}
 
@@ -1427,12 +1329,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
 	    intel_dp_128b132b_lane_cds(intel_dp, crtc_state, lttpr_count))
 		passed = true;
 
-	drm_dbg_kms(&i915->drm,
-		    "[CONNECTOR:%d:%s][ENCODER:%d:%s] 128b/132b Link Training %s at link rate = %d, lane count = %d\n",
-		    connector->base.base.id, connector->base.name,
-		    encoder->base.base.id, encoder->base.name,
-		    passed ? "passed" : "failed",
-		    crtc_state->port_clock, crtc_state->lane_count);
+	lt_dbg(intel_dp, DP_PHY_DPRX,
+	       "128b/132b Link Training %s at link rate = %d, lane count = %d\n",
+	       passed ? "passed" : "failed",
+	       crtc_state->port_clock, crtc_state->lane_count);
 
 	return passed;
 }
@@ -1451,8 +1351,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
 			       const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	struct intel_connector *connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	bool passed;
 
 	/*
@@ -1485,10 +1383,7 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
 	 * ignore_long_hpd flag can unset from the testcase.
 	 */
 	if (!passed && i915->display.hotplug.ignore_long_hpd) {
-		drm_dbg_kms(&i915->drm,
-			    "[CONNECTOR:%d:%s][ENCODER:%d:%s] Ignore the link failure\n",
-			    connector->base.base.id, connector->base.name,
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Ignore the link failure\n");
 		return;
 	}
 
@@ -1499,8 +1394,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
 void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
 				 const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-
 	/*
 	 * VIDEO_DIP_CTL register bit 31 should be set to '0' to not
 	 * disable SDP CRC. This is applicable for Display version 13.
@@ -1513,5 +1406,5 @@ void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
 				   DP_SDP_ERROR_DETECTION_CONFIGURATION,
 				   DP_SDP_CRC16_128B132B_EN);
 
-	drm_dbg_kms(&i915->drm, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
+	lt_dbg(intel_dp, DP_PHY_DPRX, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
 }
-- 
2.37.2

[Intel-gfx] [PATCH v2 08/12] drm/i915/dp: Convert link training error to debug message on disconnected sink

[Imre Deak]

If a sink is disconnected it's expected that link training actions will
fail on it, so downgrade the error messages about such actions to be a
debug message. Such - expected - link training failures are more
frequent after a follow up patch, after which an active TypeC link is
reset after the sink is disconnected which also involves a link
training.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c               |  2 +-
 drivers/gpu/drm/i915/display/intel_dp.h               |  1 +
 drivers/gpu/drm/i915/display/intel_dp_link_training.c | 11 +++++++++--
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 4361c1ac65c3a..1942a05719776 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4179,7 +4179,7 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
 	return ret;
 }
 
-static bool intel_dp_is_connected(struct intel_dp *intel_dp)
+bool intel_dp_is_connected(struct intel_dp *intel_dp)
 {
 	struct intel_connector *connector = intel_dp->attached_connector;
 
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index ef39e4f7a329e..488da392fafe5 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -42,6 +42,7 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
 			      int link_rate, int lane_count);
 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
 					    int link_rate, u8 lane_count);
+bool intel_dp_is_connected(struct intel_dp *intel_dp);
 int intel_dp_retrain_link(struct intel_encoder *encoder,
 			  struct drm_modeset_acquire_ctx *ctx);
 void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index f83944eaac128..2fe076e2d64b3 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -33,6 +33,7 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	struct intel_connector *connector = intel_dp->attached_connector;
+	const char *discon_str = "";
 	struct va_format vaf;
 	va_list args;
 
@@ -43,6 +44,11 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
 	vaf.fmt = format;
 	vaf.va = &args;
 
+	if (is_error && !intel_dp_is_connected(intel_dp)) {
+		discon_str = " (sink disconnected)";
+		is_error = false;
+	}
+
 	if (is_error)
 		drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
 			connector->base.base.id, connector->base.name,
@@ -50,11 +56,12 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
 			drm_dp_phy_name(dp_phy),
 			&vaf);
 	else
-		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
+		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV%s\n",
 			    connector->base.base.id, connector->base.name,
 			    encoder->base.base.id, encoder->base.name,
 			    drm_dp_phy_name(dp_phy),
-			    &vaf);
+			    &vaf,
+			    discon_str);
 }
 
 #define lt_err(intel_dp, dp_phy, format, ...) \
-- 
2.37.2

[Intel-gfx] [PATCH v2 09/12] drm/i915/dp: Prevent link training fallback on disconnected port

[Imre Deak]

Prevent downgrading the link training maximum lane count/rate if the
sink is disconnected - and so the link training failure is expected. In
such cases modeset failures due to the reduced max link params would be
just confusing for user space (instead of which the correct thing it
should act on is the sink disconnect signaled by a hotplug event,
requiring a disabling modeset).

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.h               | 1 +
 drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 488da392fafe5..ca12a1733df6f 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -102,6 +102,7 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
 void intel_read_dp_sdp(struct intel_encoder *encoder,
 		       struct intel_crtc_state *crtc_state,
 		       unsigned int type);
+bool intel_dp_is_connected(struct intel_dp *intel_dp);
 bool intel_digital_port_connected(struct intel_encoder *encoder);
 int intel_dp_dsc_compute_bpp(struct intel_dp *intel_dp, u8 dsc_max_bpc);
 u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 2fe076e2d64b3..fcccf410f7693 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -1088,6 +1088,11 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
 {
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
 
+	if (!intel_dp_is_connected(intel_dp)) {
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Link Training failed on disconnected sink.\n");
+		return;
+	}
+
 	if (intel_dp->hobl_active) {
 		lt_dbg(intel_dp, DP_PHY_DPRX,
 		       "Link Training failed with HOBL active, not enabling it from now on\n");
-- 
2.37.2

[Intel-gfx] [PATCH v2 10/12] drm/i915/dp: Factor out intel_dp_get_active_pipes()

[Imre Deak]

Factor out a helper used by a follow up patch to reset an active DP
link.

No functional changes.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1942a05719776..7a349cb9fc2e6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4126,9 +4126,9 @@ static bool intel_dp_has_connector(struct intel_dp *intel_dp,
 	return false;
 }
 
-static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
-				      struct drm_modeset_acquire_ctx *ctx,
-				      u8 *pipe_mask)
+static int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
+				     struct drm_modeset_acquire_ctx *ctx,
+				     u8 *pipe_mask)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	struct drm_connector_list_iter conn_iter;
@@ -4137,9 +4137,6 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
 
 	*pipe_mask = 0;
 
-	if (!intel_dp_needs_link_retrain(intel_dp))
-		return 0;
-
 	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
 	for_each_intel_connector_iter(connector, &conn_iter) {
 		struct drm_connector_state *conn_state =
@@ -4173,9 +4170,6 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
 	}
 	drm_connector_list_iter_end(&conn_iter);
 
-	if (!intel_dp_needs_link_retrain(intel_dp))
-		*pipe_mask = 0;
-
 	return ret;
 }
 
@@ -4204,13 +4198,19 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
 	if (ret)
 		return ret;
 
-	ret = intel_dp_prep_link_retrain(intel_dp, ctx, &pipe_mask);
+	if (!intel_dp_needs_link_retrain(intel_dp))
+		return 0;
+
+	ret = intel_dp_get_active_pipes(intel_dp, ctx, &pipe_mask);
 	if (ret)
 		return ret;
 
 	if (pipe_mask == 0)
 		return 0;
 
+	if (!intel_dp_needs_link_retrain(intel_dp))
+		return 0;
+
 	drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] retraining link\n",
 		    encoder->base.base.id, encoder->base.name);
 
-- 
2.37.2

[Intel-gfx] [PATCH v2 11/12] drm/i915: Factor out a helper for handling atomic modeset locks/state

[Imre Deak]

This patch simplifying the handling of modeset locks and atomic state
for an atomic commit is based on

https://lore.kernel.org/all/20210715184954.7794-2-ville.syrjala@linux.intel.com/

adding the helper to i915. I find this approach preferrable than
open-coding the corresponding steps (fixed for me an atomic
state reset during a DEADLK retry, which I missed in the open-coded
version) and also better than the existing
DRM_MODESET_LOCK_ALL_BEGIN/END macros for the reasons described in the
above original patchset.

This change takes the helper into use only for atomic commits during DDI
hotplug handling, as a preparation for a follow-up patch adding a
similar commit started from the same spot. Other places doing a
driver-internal atomic commit is to be converted by a follow-up
patchset.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/Makefile                 |  1 +
 drivers/gpu/drm/i915/display/intel_ddi.c      | 17 ++-----
 .../gpu/drm/i915/display/intel_modeset_lock.c | 50 +++++++++++++++++++
 .../gpu/drm/i915/display/intel_modeset_lock.h | 33 ++++++++++++
 4 files changed, 87 insertions(+), 14 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_lock.c
 create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_lock.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 9af76e376ca91..ef6feb2aad2ad 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -263,6 +263,7 @@ i915-y += \
 	display/intel_hti.o \
 	display/intel_load_detect.o \
 	display/intel_lpe_audio.o \
+	display/intel_modeset_lock.o \
 	display/intel_modeset_verify.o \
 	display/intel_modeset_setup.o \
 	display/intel_overlay.o \
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 55f36d9d509c6..eb391fff0f1be 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -63,6 +63,7 @@
 #include "intel_hti.h"
 #include "intel_lspcon.h"
 #include "intel_mg_phy_regs.h"
+#include "intel_modeset_lock.h"
 #include "intel_pps.h"
 #include "intel_psr.h"
 #include "intel_quirks.h"
@@ -4400,26 +4401,14 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
 
 	state = intel_encoder_hotplug(encoder, connector);
 
-	drm_modeset_acquire_init(&ctx, 0);
-
-	for (;;) {
+	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
 		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
 			ret = intel_hdmi_reset_link(encoder, &ctx);
 		else
 			ret = intel_dp_retrain_link(encoder, &ctx);
-
-		if (ret == -EDEADLK) {
-			drm_modeset_backoff(&ctx);
-			continue;
-		}
-
-		break;
 	}
 
-	drm_modeset_drop_locks(&ctx);
-	drm_modeset_acquire_fini(&ctx);
-	drm_WARN(encoder->base.dev, ret,
-		 "Acquiring modeset locks failed with %i\n", ret);
+	drm_WARN_ON(encoder->base.dev, ret);
 
 	/*
 	 * Unpowered type-c dongles can take some time to boot and be
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_lock.c b/drivers/gpu/drm/i915/display/intel_modeset_lock.c
new file mode 100644
index 0000000000000..8fb6fd849a75d
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_modeset_lock.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <drm/drm_modeset_lock.h>
+
+#include "intel_display_types.h"
+#include "intel_modeset_lock.h"
+
+void _intel_modeset_lock_begin(struct drm_modeset_acquire_ctx *ctx,
+			       struct intel_atomic_state *state,
+			       unsigned int flags, int *ret)
+{
+	drm_modeset_acquire_init(ctx, flags);
+
+	if (state)
+		state->base.acquire_ctx = ctx;
+
+	*ret = -EDEADLK;
+}
+
+bool _intel_modeset_lock_loop(int *ret)
+{
+	if (*ret == -EDEADLK) {
+		*ret = 0;
+		return true;
+	}
+
+	return false;
+}
+
+void _intel_modeset_lock_end(struct drm_modeset_acquire_ctx *ctx,
+			     struct intel_atomic_state *state,
+			     int *ret)
+{
+	if (*ret == -EDEADLK) {
+		if (state)
+			drm_atomic_state_clear(&state->base);
+
+		*ret = drm_modeset_backoff(ctx);
+		if (*ret == 0) {
+			*ret = -EDEADLK;
+			return;
+		}
+	}
+
+	drm_modeset_drop_locks(ctx);
+	drm_modeset_acquire_fini(ctx);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_lock.h b/drivers/gpu/drm/i915/display/intel_modeset_lock.h
new file mode 100644
index 0000000000000..edb5099bcd99c
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_modeset_lock.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#ifndef __INTEL_MODESET_LOCK_H__
+#define __INTEL_MODESET_LOCK_H__
+
+#include <linux/types.h>
+
+struct drm_modeset_acquire_ctx;
+struct intel_atomic_state;
+
+void _intel_modeset_lock_begin(struct drm_modeset_acquire_ctx *ctx,
+			       struct intel_atomic_state *state,
+			       unsigned int flags,
+			       int *ret);
+bool _intel_modeset_lock_loop(int *ret);
+void _intel_modeset_lock_end(struct drm_modeset_acquire_ctx *ctx,
+			     struct intel_atomic_state *state,
+			     int *ret);
+
+/*
+ * Note that one must always use "continue" rather than
+ * "break" or "return" to handle errors within the
+ * intel_modeset_lock_ctx_retry() block.
+ */
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))
+
+#endif /* __INTEL_MODESET_LOCK_H__ */
-- 
2.37.2

[Intel-gfx] [PATCH v2 12/12] drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects

[Imre Deak]

If the output on a DP-alt link with its sink disconnected is kept
enabled for too long (about 20 sec), then some IOM/TCSS firmware timeout
will cause havoc on the PCI bus, at least for other GFX devices on it
which will stop powering up. Since user space is not guaranteed to do a
disabling modeset in time, switch such disconnected but active links to
TBT mode - which is without such shortcomings - with a 2 second delay.

If the above condition is detected already during the driver load/system
resume sanitization step disable the output instead, as at that point no
user space or kernel client depends on a consistent output state yet and
because subsequent atomic modeset on such connectors - without the
actual sink capabilities available - can fail.

An active/disconnected port as above will also block the HPD status of
other active/disconnected ports to get updated (stuck in the connected
state), until the former port is disabled, its PHY is disconnected and
a ~10 ms delay has elapsed. This means the link state for all TypeC
ports/CRTCs must be rechecked after a CRTC is disabled due to the above
reason. For this disconnect the PHY synchronously after the CRTC/port is
disabled and recheck all CRTCs for the above condition whenever such a
port is disabled.

To account for a race condition during driver loading where the sink is
disconnected after the above sanitization step and before the HPD
interrupts get enabled, do an explicit check/link reset if needed from
the encoder's late_register hook, which is called after the HPD
interrupts are enabled already.

v2:
- Handle an active/disconnected port blocking the HPD state update of
  another active/disconnected port.
- Cancel the delayed work resetting the link also from the encoder
  enable/suspend/shutdown hooks.
- Rebase on the earlier intel_modeset_lock_ctx_retry() addition,
  fixing here the missed atomic state reset in case of a retry.
- Fix handling of an error return from intel_atomic_get_crtc_state().
- Recheck if the port needs to be reset after all the atomic state
  is locked and async commits are waited on.

Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c      | 68 +++++++++++++--
 .../drm/i915/display/intel_display_types.h    |  2 +
 drivers/gpu/drm/i915/display/intel_dp.c       | 59 +++++++++++++
 drivers/gpu/drm/i915/display/intel_dp.h       |  1 +
 .../drm/i915/display/intel_modeset_setup.c    | 83 ++++++++++++++-----
 drivers/gpu/drm/i915/display/intel_tc.c       | 29 +++++++
 drivers/gpu/drm/i915/display/intel_tc.h       |  1 +
 7 files changed, 215 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index eb391fff0f1be..db390b9c824ec 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3313,6 +3313,8 @@ static void intel_disable_ddi(struct intel_atomic_state *state,
 			      const struct intel_crtc_state *old_crtc_state,
 			      const struct drm_connector_state *old_conn_state)
 {
+	cancel_delayed_work(&enc_to_dig_port(encoder)->reset_link_work);
+
 	intel_hdcp_disable(to_intel_connector(old_conn_state->connector));
 
 	if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
@@ -3381,6 +3383,8 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 	bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
 
+	cancel_delayed_work(&dig_port->reset_link_work);
+
 	if (is_tc_port) {
 		struct intel_crtc *master_crtc =
 			to_intel_crtc(crtc_state->uapi.crtc);
@@ -4229,9 +4233,53 @@ static void intel_ddi_encoder_reset(struct drm_encoder *encoder)
 		intel_tc_port_init_mode(dig_port);
 }
 
+static void intel_ddi_tc_port_reset_link_work(struct work_struct *work)
+{
+	struct intel_digital_port *dig_port =
+		container_of(work, struct intel_digital_port, reset_link_work.work);
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	struct intel_encoder *encoder = &dig_port->base;
+
+	mutex_lock(&i915->drm.mode_config.mutex);
+
+	if (intel_tc_port_link_needs_reset(dig_port)) {
+		int ret;
+
+		drm_dbg_kms(&i915->drm,
+			    "[ENCODER:%d:%s] TypeC DP-alt sink disconnected, resetting link\n",
+			    encoder->base.base.id, encoder->base.name);
+		ret = intel_dp_reset_link(encoder);
+		drm_WARN_ON(&i915->drm, ret);
+	}
+
+	mutex_unlock(&i915->drm.mode_config.mutex);
+}
+
+static bool intel_ddi_tc_port_reset_link(struct intel_encoder *encoder)
+{
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+	if (!intel_tc_port_link_needs_reset(dig_port))
+		return false;
+
+	queue_delayed_work(system_unbound_wq, &dig_port->reset_link_work, msecs_to_jiffies(2000));
+
+	return true;
+}
+
+static int intel_ddi_encoder_late_register(struct drm_encoder *_encoder)
+{
+	struct intel_encoder *encoder = to_intel_encoder(_encoder);
+
+	intel_ddi_tc_port_reset_link(encoder);
+
+	return 0;
+}
+
 static const struct drm_encoder_funcs intel_ddi_funcs = {
 	.reset = intel_ddi_encoder_reset,
 	.destroy = intel_ddi_encoder_destroy,
+	.late_register = intel_ddi_encoder_late_register,
 };
 
 static struct intel_connector *
@@ -4401,14 +4449,16 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
 
 	state = intel_encoder_hotplug(encoder, connector);
 
-	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
-		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
-			ret = intel_hdmi_reset_link(encoder, &ctx);
-		else
-			ret = intel_dp_retrain_link(encoder, &ctx);
-	}
+	if (!intel_ddi_tc_port_reset_link(encoder)) {
+		intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
+			if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
+				ret = intel_hdmi_reset_link(encoder, &ctx);
+			else
+				ret = intel_dp_retrain_link(encoder, &ctx);
+		}
 
-	drm_WARN_ON(encoder->base.dev, ret);
+		drm_WARN_ON(encoder->base.dev, ret);
+	}
 
 	/*
 	 * Unpowered type-c dongles can take some time to boot and be
@@ -4624,6 +4674,7 @@ static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
 	if (!intel_phy_is_tc(i915, phy))
 		return;
 
+	cancel_delayed_work(&dig_port->reset_link_work);
 	intel_tc_port_flush_work(dig_port);
 }
 
@@ -4640,6 +4691,7 @@ static void intel_ddi_encoder_shutdown(struct intel_encoder *encoder)
 	if (!intel_phy_is_tc(i915, phy))
 		return;
 
+	cancel_delayed_work(&dig_port->reset_link_work);
 	intel_tc_port_cleanup(dig_port);
 }
 
@@ -4945,6 +4997,8 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 			encoder->pipe_mask = intel_ddi_splitter_pipe_mask(dev_priv);
 	}
 
+	INIT_DELAYED_WORK(&dig_port->reset_link_work, intel_ddi_tc_port_reset_link_work);
+
 	/*
 	 * In theory we don't need the encoder->type check,
 	 * but leave it just in case we have some really bad VBTs...
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 96a3183675bee..b4d5424cf95cf 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1817,6 +1817,8 @@ struct intel_digital_port {
 
 	struct intel_tc_port *tc;
 
+	struct delayed_work reset_link_work;
+
 	/* protects num_hdcp_streams reference count, hdcp_port_data and hdcp_auth_status */
 	struct mutex hdcp_mutex;
 	/* the number of pipes using HDCP signalling out of this port */
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 7a349cb9fc2e6..e7e4266b314a7 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -70,6 +70,7 @@
 #include "intel_hotplug.h"
 #include "intel_lspcon.h"
 #include "intel_lvds.h"
+#include "intel_modeset_lock.h"
 #include "intel_panel.h"
 #include "intel_pch_display.h"
 #include "intel_pps.h"
@@ -4258,6 +4259,64 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
 	return 0;
 }
 
+int intel_dp_reset_link(struct intel_encoder *encoder)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+	struct drm_modeset_acquire_ctx ctx;
+	struct drm_atomic_state *_state;
+	struct intel_atomic_state *state;
+	int ret = 0;
+
+	_state = drm_atomic_state_alloc(&i915->drm);
+	if (!_state)
+		return -ENOMEM;
+
+	state = to_intel_atomic_state(_state);
+
+	intel_modeset_lock_ctx_retry(&ctx, state, 0, ret) {
+		struct intel_crtc *crtc;
+		u8 pipe_mask;
+
+		ret = drm_modeset_lock(&i915->drm.mode_config.connection_mutex, &ctx);
+		if (ret)
+			continue;
+
+		ret = intel_dp_get_active_pipes(enc_to_intel_dp(encoder), &ctx, &pipe_mask);
+		if (ret)
+			continue;
+
+		if (!pipe_mask)
+			continue;
+
+		state->internal = true;
+
+		for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, pipe_mask) {
+			struct intel_crtc_state *crtc_state;
+
+			crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+			if (IS_ERR(crtc_state)) {
+				ret = PTR_ERR(crtc_state);
+				break;
+			}
+
+			crtc_state->uapi.connectors_changed = true;
+		}
+
+		if (ret)
+			continue;
+
+		if (!intel_tc_port_link_needs_reset(dig_port))
+			continue;
+
+		ret = drm_atomic_commit(&state->base);
+	}
+
+	drm_atomic_state_put(&state->base);
+
+	return ret;
+}
+
 static int intel_dp_prep_phy_test(struct intel_dp *intel_dp,
 				  struct drm_modeset_acquire_ctx *ctx,
 				  u8 *pipe_mask)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index ca12a1733df6f..05a8bda8513ee 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -45,6 +45,7 @@ int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
 bool intel_dp_is_connected(struct intel_dp *intel_dp);
 int intel_dp_retrain_link(struct intel_encoder *encoder,
 			  struct drm_modeset_acquire_ctx *ctx);
+int intel_dp_reset_link(struct intel_encoder *encoder);
 void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
 void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
 					   const struct intel_crtc_state *crtc_state);
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 1e10580e5ab31..311249a65f8fb 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -26,6 +26,7 @@
 #include "intel_fifo_underrun.h"
 #include "intel_modeset_setup.h"
 #include "intel_pch_display.h"
+#include "intel_tc.h"
 #include "intel_vblank.h"
 #include "intel_wm.h"
 #include "skl_watermark.h"
@@ -368,17 +369,6 @@ intel_sanitize_plane_mapping(struct drm_i915_private *i915)
 	}
 }
 
-static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
-{
-	struct drm_device *dev = crtc->base.dev;
-	struct intel_encoder *encoder;
-
-	for_each_encoder_on_crtc(dev, &crtc->base, encoder)
-		return true;
-
-	return false;
-}
-
 static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
@@ -421,11 +411,14 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state
 					   !HAS_GMCH(i915));
 }
 
-static void intel_sanitize_crtc(struct intel_crtc *crtc,
+static bool intel_sanitize_crtc(struct intel_crtc *crtc,
 				struct drm_modeset_acquire_ctx *ctx)
 {
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
+	struct intel_encoder *encoder;
+	bool needs_link_reset = false;
+	bool has_encoder = false;
 
 	if (crtc_state->hw.active) {
 		struct intel_plane *plane;
@@ -445,13 +438,67 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
 		intel_color_commit_arm(crtc_state);
 	}
 
+	if (!crtc_state->hw.active ||
+	    intel_crtc_is_bigjoiner_slave(crtc_state))
+		return false;
+
+	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
+		struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+		has_encoder = true;
+
+		if (!dig_port || !intel_tc_port_link_needs_reset(dig_port))
+			continue;
+
+		needs_link_reset = true;
+		break;
+	}
+
 	/*
 	 * Adjust the state of the output pipe according to whether we have
 	 * active connectors/encoders.
 	 */
-	if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) &&
-	    !intel_crtc_is_bigjoiner_slave(crtc_state))
+	if (!has_encoder || needs_link_reset)
 		intel_crtc_disable_noatomic(crtc, ctx);
+
+	/*
+	 * An active and disconnected TypeC port prevents the HPD live state
+	 * to get updated on other active/disconnected TypeC ports, so after
+	 * a port gets disabled the CRTCs using other TypeC ports must be
+	 * rechecked wrt. their link status. After the port is disabled the
+	 * HPD state on other ports will get updated in ~10ms, so also wait
+	 * here for that.
+	 */
+	if (needs_link_reset) {
+		usleep_range(50000, 100000);
+
+		return true;
+	}
+
+	return false;
+}
+
+static void intel_sanitize_all_crtcs(struct drm_i915_private *i915,
+				     struct drm_modeset_acquire_ctx *ctx)
+{
+	int restart_count;
+
+	for (restart_count = 0; restart_count < I915_MAX_PIPES; restart_count++) {
+		struct intel_crtc *crtc;
+		bool restart = false;
+
+		for_each_intel_crtc(&i915->drm, crtc) {
+			struct intel_crtc_state *crtc_state =
+				to_intel_crtc_state(crtc->base.state);
+
+			restart = restart || intel_sanitize_crtc(crtc, ctx);
+			intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
+		}
+
+		if (!restart)
+			break;
+	}
+	drm_WARN_ON(&i915->drm, restart_count == I915_MAX_PIPES);
 }
 
 static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
@@ -871,13 +918,7 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
 	 */
 	intel_modeset_update_connector_atomic_state(i915);
 
-	for_each_intel_crtc(&i915->drm, crtc) {
-		struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-
-		intel_sanitize_crtc(crtc, ctx);
-		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
-	}
+	intel_sanitize_all_crtcs(i915, ctx);
 
 	intel_dpll_sanitize_state(i915);
 
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 4fca711a58bce..8b7f57701c257 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -1572,6 +1572,27 @@ bool intel_tc_port_connected(struct intel_encoder *encoder)
 	return is_connected;
 }
 
+bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+	struct intel_tc_port *tc = to_tc_port(dig_port);
+	bool ret;
+
+	if (!intel_phy_is_tc(i915, phy))
+		return false;
+
+	mutex_lock(&tc->lock);
+
+	ret = tc->link_refcount &&
+	      intel_tc_port_in_dp_alt_mode(dig_port) &&
+	      intel_tc_port_needs_reset(tc);
+
+	mutex_unlock(&tc->lock);
+
+	return ret;
+}
+
 static void __intel_tc_port_lock(struct intel_tc_port *tc,
 				 int required_lanes)
 {
@@ -1660,6 +1681,14 @@ void intel_tc_port_put_link(struct intel_digital_port *dig_port)
 	intel_tc_port_lock(dig_port);
 	__intel_tc_port_put_link(tc);
 	intel_tc_port_unlock(dig_port);
+
+	/*
+	 * The firmware will not update the HPD status of other TypeC ports
+	 * that are active in DP-alt mode with their sink disconnected, until
+	 * this port is disabled and its PHY gets disconnected. Make sure this
+	 * happens in a timely manner by disconnecting the PHY synchronously.
+	 */
+	intel_tc_port_flush_work(dig_port);
 }
 
 int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
index dd0810f9ea95e..c4cf1eac54a1c 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.h
+++ b/drivers/gpu/drm/i915/display/intel_tc.h
@@ -34,6 +34,7 @@ void intel_tc_port_flush_work(struct intel_digital_port *dig_port);
 void intel_tc_port_get_link(struct intel_digital_port *dig_port,
 			    int required_lanes);
 void intel_tc_port_put_link(struct intel_digital_port *dig_port);
+bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port);
 bool intel_tc_port_ref_held(struct intel_digital_port *dig_port);
 
 int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
-- 
2.37.2

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)

[Patchwork]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)
URL   : https://patchwork.freedesktop.org/series/117004/
State : warning

== Summary ==

Error: dim checkpatch failed
c0e23e703186 drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration
6288bedac45a drm/i915: Make the CRTC state consistent during sanitize-disabling
9d06ba0378f5 drm/i915: Update connector atomic state before crtc sanitize-disabling
911d807fe5cb drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()
27a7a66bf8ad drm/i915: Factor out set_encoder_for_connector()
30ef074e0f77 drm/i915: Add support for disabling any CRTCs during HW readout/sanitization
16c5654f45a5 drm/i915/dp: Add link training debug and error printing helpers
-:269: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#269: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:725:
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+			    "Using LINK_RATE_SET value %02x\n",

total: 0 errors, 0 warnings, 1 checks, 778 lines checked
04bb39f61ef4 drm/i915/dp: Convert link training error to debug message on disconnected sink
78e39d21dd0a drm/i915/dp: Prevent link training fallback on disconnected port
501ae18f29b3 drm/i915/dp: Factor out intel_dp_get_active_pipes()
d43245ee5705 drm/i915: Factor out a helper for handling atomic modeset locks/state
Traceback (most recent call last):
  File "scripts/spdxcheck.py", line 6, in <module>
    from ply import lex, yacc
ModuleNotFoundError: No module named 'ply'
Traceback (most recent call last):
  File "scripts/spdxcheck.py", line 6, in <module>
    from ply import lex, yacc
ModuleNotFoundError: No module named 'ply'
-:13: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#13: 
https://lore.kernel.org/all/20210715184954.7794-2-ville.syrjala@linux.intel.com/

-:85: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#85: 
new file mode 100644

-:173: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'ctx' - possible side-effects?
#173: FILE: drivers/gpu/drm/i915/display/intel_modeset_lock.h:28:
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))

-:173: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'state' - possible side-effects?
#173: FILE: drivers/gpu/drm/i915/display/intel_modeset_lock.h:28:
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))

-:173: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'ret' - possible side-effects?
#173: FILE: drivers/gpu/drm/i915/display/intel_modeset_lock.h:28:
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))

total: 0 errors, 2 warnings, 3 checks, 125 lines checked
edd95b07db89 drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects
-:48: WARNING:COMMIT_LOG_USE_LINK: Unknown link reference 'Closes:', use 'Link:' instead
#48: 
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860

total: 0 errors, 1 warnings, 0 checks, 370 lines checked

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)

[Patchwork]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)
URL   : https://patchwork.freedesktop.org/series/117004/
State : warning

== Summary ==

Error: dim sparse failed
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:117:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:148:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:150:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:154:26: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:156:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:174:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:176:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:180:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:182:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:186:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:188:9: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:192:35: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:16: warning: unreplaced symbol 'oldbit'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:195:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:237:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:239:9: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:66:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+./arch/x86/include/asm/bitops.h:92:1: warning: unreplaced symbol 'return'
+drivers/gpu/drm/i915/gt/intel_gt.h:112:16: warning: trying to copy expression type 31
+./drivers/gpu/drm/i915/intel_uncore.h:346:1: warning: trying to copy expression type 31
+./drivers/gpu/drm/i915/intel_uncore.h:346:1: warning: trying to copy expression type 31
+./drivers/gpu/drm/i915/intel_uncore.h:346:1: warning: trying to copy expression type 31
+./drivers/gpu/drm/i915/intel_uncore.h:351:1: warning: trying to copy expression type 31
+./drivers/gpu/drm/i915/intel_uncore.h:351:1: warning: trying to copy expression type 31
+./drivers/gpu/drm/i915/intel_uncore.h:351:1: warning: trying to copy expression type 31
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:105:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:107:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:108:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:109:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:111:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:112:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:121:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:128:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:166:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:168:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:169:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:170:9: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:19: warning: unreplaced symbol 'val'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:25: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:172:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:28:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:30:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:31:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:33:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:37:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:39:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:40:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:42:16: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:55:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:57:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:58:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:60:15: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:73:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:75:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:76:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:77:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:79:20: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:17: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:23: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:80:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:93:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:95:9: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:96:9: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:97:9: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:10: warning: unreplaced symbol 'p'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:14: warning: unreplaced symbol 'old'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/generic-non-atomic.h:99:21: warning: unreplaced symbol 'mask'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:100:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:112:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:115:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:127:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:130:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:139:1: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:142:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:142:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:142:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:142:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrumented-non-atomic.h:142:9: warning: unreplaced symbol 'return'
+./include/asm-generic/bitops/instrum

[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 5355 bytes --]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)
URL   : https://patchwork.freedesktop.org/series/117004/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_13105 -> Patchwork_117004v2
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/index.html

Participating hosts (38 -> 37)
------------------------------

  Missing    (1): fi-snb-2520m 

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

  Here are the changes found in Patchwork_117004v2 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_selftest@live@migrate:
    - bat-dg2-11:         [PASS][1] -> [DMESG-WARN][2] ([i915#7699])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/bat-dg2-11/igt@i915_selftest@live@migrate.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-dg2-11/igt@i915_selftest@live@migrate.html

  * igt@i915_selftest@live@slpc:
    - bat-rpls-1:         NOTRUN -> [DMESG-WARN][3] ([i915#6367])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-rpls-1/igt@i915_selftest@live@slpc.html

  * igt@kms_chamelium_hpd@common-hpd-after-suspend:
    - bat-rpls-1:         NOTRUN -> [SKIP][4] ([i915#7828])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-rpls-1/igt@kms_chamelium_hpd@common-hpd-after-suspend.html

  * igt@kms_pipe_crc_basic@suspend-read-crc:
    - bat-rpls-1:         NOTRUN -> [SKIP][5] ([i915#1845])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-rpls-1/igt@kms_pipe_crc_basic@suspend-read-crc.html

  
#### Possible fixes ####

  * igt@i915_selftest@live@requests:
    - {bat-mtlp-8}:       [ABORT][6] ([i915#4983] / [i915#7920]) -> [PASS][7]
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/bat-mtlp-8/igt@i915_selftest@live@requests.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-mtlp-8/igt@i915_selftest@live@requests.html

  * igt@i915_selftest@live@reset:
    - bat-rpls-1:         [ABORT][8] ([i915#4983] / [i915#7461] / [i915#8347] / [i915#8384]) -> [PASS][9]
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/bat-rpls-1/igt@i915_selftest@live@reset.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-rpls-1/igt@i915_selftest@live@reset.html

  * igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence@pipe-d-dp-1:
    - bat-dg2-8:          [FAIL][10] ([i915#7932]) -> [PASS][11]
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/bat-dg2-8/igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence@pipe-d-dp-1.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/bat-dg2-8/igt@kms_pipe_crc_basic@nonblocking-crc-frame-sequence@pipe-d-dp-1.html

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

  [i915#1845]: https://gitlab.freedesktop.org/drm/intel/issues/1845
  [i915#4817]: https://gitlab.freedesktop.org/drm/intel/issues/4817
  [i915#4983]: https://gitlab.freedesktop.org/drm/intel/issues/4983
  [i915#6367]: https://gitlab.freedesktop.org/drm/intel/issues/6367
  [i915#6645]: https://gitlab.freedesktop.org/drm/intel/issues/6645
  [i915#7461]: https://gitlab.freedesktop.org/drm/intel/issues/7461
  [i915#7699]: https://gitlab.freedesktop.org/drm/intel/issues/7699
  [i915#7828]: https://gitlab.freedesktop.org/drm/intel/issues/7828
  [i915#7920]: https://gitlab.freedesktop.org/drm/intel/issues/7920
  [i915#7932]: https://gitlab.freedesktop.org/drm/intel/issues/7932
  [i915#8347]: https://gitlab.freedesktop.org/drm/intel/issues/8347
  [i915#8384]: https://gitlab.freedesktop.org/drm/intel/issues/8384


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

  * Linux: CI_DRM_13105 -> Patchwork_117004v2

  CI-20190529: 20190529
  CI_DRM_13105: e9c4e0f955197134304733e2417f72ce6392cb30 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7277: 1cb3507f3ff28d11bd5cfabcde576fe78ddab571 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_117004v2: e9c4e0f955197134304733e2417f72ce6392cb30 @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

b51f9e72948a drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects
951c9ad51d5b drm/i915: Factor out a helper for handling atomic modeset locks/state
5f13192945a3 drm/i915/dp: Factor out intel_dp_get_active_pipes()
4406f54743b3 drm/i915/dp: Prevent link training fallback on disconnected port
1a4a446729b7 drm/i915/dp: Convert link training error to debug message on disconnected sink
5e66b95948d0 drm/i915/dp: Add link training debug and error printing helpers
9bf9f927960d drm/i915: Add support for disabling any CRTCs during HW readout/sanitization
9b3cf84935df drm/i915: Factor out set_encoder_for_connector()
a77b153e76ec drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()
704ac9a289e1 drm/i915: Update connector atomic state before crtc sanitize-disabling
71de184bd9db drm/i915: Make the CRTC state consistent during sanitize-disabling
6c1d16972633 drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/index.html

[-- Attachment #2: Type: text/html, Size: 6128 bytes --]

[Intel-gfx] ✓ Fi.CI.IGT: success for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 9948 bytes --]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev2)
URL   : https://patchwork.freedesktop.org/series/117004/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_13105_full -> Patchwork_117004v2_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Participating hosts (7 -> 7)
------------------------------

  No changes in participating hosts

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

  Here are the changes found in Patchwork_117004v2_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_exec_fair@basic-none-solo@rcs0:
    - shard-apl:          [PASS][1] -> [FAIL][2] ([i915#2842])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-apl1/igt@gem_exec_fair@basic-none-solo@rcs0.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-apl6/igt@gem_exec_fair@basic-none-solo@rcs0.html

  * igt@gen9_exec_parse@allowed-single:
    - shard-apl:          [PASS][3] -> [ABORT][4] ([i915#5566])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-apl1/igt@gen9_exec_parse@allowed-single.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-apl1/igt@gen9_exec_parse@allowed-single.html
    - shard-glk:          [PASS][5] -> [ABORT][6] ([i915#5566])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-glk2/igt@gen9_exec_parse@allowed-single.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-glk2/igt@gen9_exec_parse@allowed-single.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions:
    - shard-apl:          [PASS][7] -> [FAIL][8] ([i915#2346])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-apl6/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-apl1/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html

  * igt@kms_plane_scaling@plane-upscale-with-modifiers-factor-0-25@pipe-a-vga-1:
    - shard-snb:          NOTRUN -> [SKIP][9] ([fdo#109271]) +37 similar issues
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-snb2/igt@kms_plane_scaling@plane-upscale-with-modifiers-factor-0-25@pipe-a-vga-1.html

  
#### Possible fixes ####

  * igt@drm_fdinfo@most-busy-idle-check-all@rcs0:
    - {shard-rkl}:        [FAIL][10] ([i915#7742]) -> [PASS][11]
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-rkl-2/igt@drm_fdinfo@most-busy-idle-check-all@rcs0.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-rkl-6/igt@drm_fdinfo@most-busy-idle-check-all@rcs0.html

  * igt@gem_ctx_exec@basic-nohangcheck:
    - {shard-tglu}:       [FAIL][12] ([i915#6268]) -> [PASS][13]
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-tglu-8/igt@gem_ctx_exec@basic-nohangcheck.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-tglu-6/igt@gem_ctx_exec@basic-nohangcheck.html

  * igt@gem_ctx_freq@sysfs:
    - {shard-dg1}:        [FAIL][14] ([i915#6786]) -> [PASS][15]
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-dg1-17/igt@gem_ctx_freq@sysfs.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-dg1-15/igt@gem_ctx_freq@sysfs.html

  * igt@gem_exec_fair@basic-deadline:
    - {shard-rkl}:        [FAIL][16] ([i915#2846]) -> [PASS][17]
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-rkl-3/igt@gem_exec_fair@basic-deadline.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-rkl-7/igt@gem_exec_fair@basic-deadline.html

  * igt@gem_exec_fair@basic-pace-share@rcs0:
    - {shard-tglu}:       [FAIL][18] ([i915#2842]) -> [PASS][19]
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-tglu-6/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-tglu-4/igt@gem_exec_fair@basic-pace-share@rcs0.html

  * igt@i915_pm_lpsp@kms-lpsp@kms-lpsp-hdmi-a:
    - {shard-rkl}:        [SKIP][20] ([i915#1937]) -> [PASS][21]
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-rkl-1/igt@i915_pm_lpsp@kms-lpsp@kms-lpsp-hdmi-a.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-rkl-7/igt@i915_pm_lpsp@kms-lpsp@kms-lpsp-hdmi-a.html

  * igt@i915_pm_rc6_residency@rc6-idle@rcs0:
    - {shard-dg1}:        [FAIL][22] ([i915#3591]) -> [PASS][23]
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-dg1-16/igt@i915_pm_rc6_residency@rc6-idle@rcs0.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-dg1-17/igt@i915_pm_rc6_residency@rc6-idle@rcs0.html

  * igt@i915_pm_rpm@modeset-lpsp:
    - {shard-rkl}:        [SKIP][24] ([i915#1397]) -> [PASS][25] +1 similar issue
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-rkl-1/igt@i915_pm_rpm@modeset-lpsp.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-rkl-7/igt@i915_pm_rpm@modeset-lpsp.html

  * igt@i915_selftest@live@gt_heartbeat:
    - shard-apl:          [DMESG-FAIL][26] ([i915#5334]) -> [PASS][27]
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-apl4/igt@i915_selftest@live@gt_heartbeat.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-apl7/igt@i915_selftest@live@gt_heartbeat.html

  * igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-180-hflip-async-flip:
    - {shard-tglu}:       [FAIL][28] ([i915#3743]) -> [PASS][29]
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-tglu-10/igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-180-hflip-async-flip.html
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-tglu-4/igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-180-hflip-async-flip.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size:
    - shard-apl:          [FAIL][30] ([i915#2346]) -> [PASS][31]
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-apl1/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size.html
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-apl2/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size.html

  * igt@kms_vblank@pipe-c-accuracy-idle:
    - shard-glk:          [FAIL][32] ([i915#43]) -> [PASS][33]
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13105/shard-glk3/igt@kms_vblank@pipe-c-accuracy-idle.html
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v2/shard-glk6/igt@kms_vblank@pipe-c-accuracy-idle.html

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

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#110189]: https://bugs.freedesktop.org/show_bug.cgi?id=110189
  [fdo#111825]: https://bugs.freedesktop.org/show_bug.cgi?id=111825
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1397]: https://gitlab.freedesktop.org/drm/intel/issues/1397
  [i915#1937]: https://gitlab.freedesktop.org/drm/intel/issues/1937
  [i915#2346]: https://gitlab.freedesktop.org/drm/intel/issues/2346
  [i915#2681]: https://gitlab.freedesktop.org/drm/intel/issues/2681
  [i915#2842]: https://gitlab.freedesktop.org/drm/intel/issues/2842
  [i915#2846]: https://gitlab.freedesktop.org/drm/intel/issues/2846
  [i915#3458]: https://gitlab.freedesktop.org/drm/intel/issues/3458
  [i915#3591]: https://gitlab.freedesktop.org/drm/intel/issues/3591
  [i915#3689]: https://gitlab.freedesktop.org/drm/intel/issues/3689
  [i915#3743]: https://gitlab.freedesktop.org/drm/intel/issues/3743
  [i915#3955]: https://gitlab.freedesktop.org/drm/intel/issues/3955
  [i915#4070]: https://gitlab.freedesktop.org/drm/intel/issues/4070
  [i915#4078]: https://gitlab.freedesktop.org/drm/intel/issues/4078
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4098]: https://gitlab.freedesktop.org/drm/intel/issues/4098
  [i915#43]: https://gitlab.freedesktop.org/drm/intel/issues/43
  [i915#4816]: https://gitlab.freedesktop.org/drm/intel/issues/4816
  [i915#5176]: https://gitlab.freedesktop.org/drm/intel/issues/5176
  [i915#5235]: https://gitlab.freedesktop.org/drm/intel/issues/5235
  [i915#5334]: https://gitlab.freedesktop.org/drm/intel/issues/5334
  [i915#5354]: https://gitlab.freedesktop.org/drm/intel/issues/5354
  [i915#5566]: https://gitlab.freedesktop.org/drm/intel/issues/5566
  [i915#5784]: https://gitlab.freedesktop.org/drm/intel/issues/5784
  [i915#6268]: https://gitlab.freedesktop.org/drm/intel/issues/6268
  [i915#6786]: https://gitlab.freedesktop.org/drm/intel/issues/6786
  [i915#7711]: https://gitlab.freedesktop.org/drm/intel/issues/7711
  [i915#7742]: https://gitlab.freedesktop.org/drm/intel/issues/7742
  [i915#7975]: https://gitlab.freedesktop.org/drm/intel/issues/7975
  [i915#8011]: https://gitlab.freedesktop.org/drm/intel/issues/8011
  [i915#8213]: https://gitlab.freedesktop.org/drm/intel/issues/8213
  [i915#8253]: https://gitlab.freedesktop.org/drm/intel/issues/8253


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

  * Linux: CI_DRM_13105 -> Patchwork_117004v2

  CI-20190529: 20190529
  CI_DRM_13105: e9c4e0f955197134304733e2417f72ce6392cb30 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7277: 1cb3507f3ff28d11bd5cfabcde576fe78ddab571 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_117004v2: e9c4e0f955197134304733e2417f72ce6392cb30 @ 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_117004v2/index.html

[-- Attachment #2: Type: text/html, Size: 9675 bytes --]

Re: [Intel-gfx] [PATCH v2 02/12] drm/i915: Make the CRTC state consistent during sanitize-disabling

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:38AM +0300, Imre Deak wrote:
> Make sure that the CRTC state is reset correctly, as expected after
> disabling the CRTC.
> 
> In particular this change will:
> - Zero all the CSC blob pointers after intel_crtc_free_hw_state()
>   has freed them.
> - Zero the shared DPLL and port PLL pointers and clear the
>   corresponding active flags in the PLL state.
> - Reset all the transcoder and pipe fields.
> 
> v2:
> - Reset fully the CRTC state. (Ville)
> - Clear pipe active flags in the DPLL state.
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_modeset_setup.c | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index eefa4018dc0c2..2ca66e49d8863 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -88,13 +88,14 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
>  	crtc->active = false;
>  	crtc->base.enabled = false;
>  
> -	drm_WARN_ON(&i915->drm,
> -		    drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0);
> -	crtc_state->uapi.active = false;
> -	crtc_state->uapi.connector_mask = 0;
> -	crtc_state->uapi.encoder_mask = 0;
> +	if (crtc_state->shared_dpll) {
> +		crtc_state->shared_dpll->state.pipe_mask &= ~BIT(pipe);

So that's basiclly unreference_shared_dpll(). I wonder if we can
refactor that a bit to by usable here?

> +		crtc_state->shared_dpll->active_mask &= ~BIT(pipe);
> +	}

Isn't this part of disable_shared_dpll()? Are we not calling that?

> +
> +	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
>  	intel_crtc_free_hw_state(crtc_state);
> -	memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
> +	intel_crtc_state_reset(crtc_state, crtc);
>  
>  	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
>  		encoder->base.crtc = NULL;
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 01/12] drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:37AM +0300, Imre Deak wrote:
> For a bigjoiner configuration display->crtc_disable() will be called
> first for the slave CRTCs and then for the master CRTC. However slave
> CRTCs will be actually disabled only after the master CRTC is disabled
> (from the encoder disable hooks called with the master CRTC state).
> Hence the slave PIPEDMCs can be disabled only after the master CRTC is
> disabled, make this so.
> 
> intel_encoders_post_pll_disable() must be called only for the master
> CRTC, as for the other two encoder disable hooks. While at it fix this
> up as well. This didn't cause a problem, since
> intel_encoders_post_pll_disable() will call the corresponding hook only
> for an encoder/connector connected to the given CRTC, however slave
> CRTCs will have no associated encoder/connector.
> 
> Fixes: 3af2ff0840be ("drm/i915: Enable a PIPEDMC whenever its corresponding pipe is enabled")
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 3d3483e6f8363..ca95cf6764c04 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -1700,9 +1700,17 @@ static void hsw_crtc_disable(struct intel_atomic_state *state,
>  
>  	intel_disable_shared_dpll(old_crtc_state);
>  
> -	intel_encoders_post_pll_disable(state, crtc);
> +	if (!intel_crtc_is_bigjoiner_slave(old_crtc_state)) {
> +		struct intel_crtc *slave_crtc;
> +
> +		intel_encoders_post_pll_disable(state, crtc);
>  
> -	intel_dmc_disable_pipe(i915, crtc->pipe);
> +		intel_dmc_disable_pipe(i915, crtc->pipe);
> +
> +		for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc,
> +						 intel_crtc_bigjoiner_slave_pipes(old_crtc_state))
> +			intel_dmc_disable_pipe(i915, slave_crtc->pipe);
> +	}
>  }
>  
>  static void i9xx_pfit_enable(const struct intel_crtc_state *crtc_state)
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 03/12] drm/i915: Update connector atomic state before crtc sanitize-disabling

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:39AM +0300, Imre Deak wrote:
> During HW state readout/sanitization an up-to-date connector atomic
> state will be required by a follow-up patch, which can disable CRTCs
> with an encoder (and calling the correct encoder hooks happens via the
> connector atomic state encoder pointer). So update the connector state
> already before the CRTC sanitize/disable step. For now this doesn't make
> a difference, since intel_modeset_update_connector_atomic_state() will
> update/enable the atomic state only for connectors that have an enabled
> encoder/CRTC. Such CRTCs/encoders will not be affected by
> intel_sanitize_crtc().
> 
> v2: Add comment about why the connector state needs to be up-to-date.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  drivers/gpu/drm/i915/display/intel_modeset_setup.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index 2ca66e49d8863..c1a4a7bcc56ae 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -701,6 +701,12 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
>  	for_each_intel_encoder(&i915->drm, encoder)
>  		intel_sanitize_encoder(encoder);
>  
> +	/*
> +	 * Sanitizing CRTCs needs their connector atomic state to be
> +	 * up-to-date, so ensure that already here.
> +	 */
> +	intel_modeset_update_connector_atomic_state(i915);
> +
>  	for_each_intel_crtc(&i915->drm, crtc) {
>  		struct intel_crtc_state *crtc_state =
>  			to_intel_crtc_state(crtc->base.state);
> @@ -709,8 +715,6 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
>  		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
>  	}
>  
> -	intel_modeset_update_connector_atomic_state(i915);
> -
>  	intel_dpll_sanitize_state(i915);
>  
>  	intel_wm_get_hw_state(i915);
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 05/12] drm/i915: Factor out set_encoder_for_connector()

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:41AM +0300, Imre Deak wrote:
> Factor out a function setting the encoder and CRTC in the connector
> atomic state, required by a follow up patch.
> 
> No functional changes.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  .../drm/i915/display/intel_modeset_setup.c    | 28 +++++++++++++------
>  1 file changed, 19 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index 922ea5ddd0c5b..9848d20582963 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -87,6 +87,24 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
>  	}
>  }
>  
> +static void set_encoder_for_connector(struct intel_connector *connector,
> +				      struct intel_encoder *encoder)
> +{
> +	struct drm_connector_state *conn_state = connector->base.state;
> +
> +	if (conn_state->crtc)
> +		drm_connector_put(&connector->base);
> +
> +	if (encoder) {
> +		conn_state->best_encoder = &encoder->base;
> +		conn_state->crtc = encoder->base.crtc;
> +		drm_connector_get(&connector->base);
> +	} else {
> +		conn_state->best_encoder = NULL;
> +		conn_state->crtc = NULL;
> +	}
> +}
> +
>  static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
>  {
>  	struct intel_encoder *encoder;
> @@ -141,8 +159,7 @@ static void intel_modeset_update_connector_atomic_state(struct drm_i915_private
>  		struct intel_encoder *encoder =
>  			to_intel_encoder(connector->base.encoder);
>  
> -		if (conn_state->crtc)
> -			drm_connector_put(&connector->base);
> +		set_encoder_for_connector(connector, encoder);
>  
>  		if (encoder) {
>  			struct intel_crtc *crtc =
> @@ -150,14 +167,7 @@ static void intel_modeset_update_connector_atomic_state(struct drm_i915_private
>  			const struct intel_crtc_state *crtc_state =
>  				to_intel_crtc_state(crtc->base.state);
>  
> -			conn_state->best_encoder = &encoder->base;
> -			conn_state->crtc = &crtc->base;
>  			conn_state->max_bpc = (crtc_state->pipe_bpp ?: 24) / 3;
> -
> -			drm_connector_get(&connector->base);
> -		} else {
> -			conn_state->best_encoder = NULL;
> -			conn_state->crtc = NULL;
>  		}
>  	}
>  	drm_connector_list_iter_end(&conn_iter);
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 07/12] drm/i915/dp: Add link training debug and error printing helpers

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:43AM +0300, Imre Deak wrote:
> Add functions for printing link training debug and error messages, both
> to prepare for the next patch, which downgrades an error to a debug
> message if the sink is disconnected and to remove some code duplication.
> 
> v2: (Ville)
> - Always print the connector prefix.
> - Preserve the drm_dbg_kms() debug category.
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>

While I don't really like the custom debug infrastructure I can't
immediately see any really better way to do this.

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

> ---
>  .../drm/i915/display/intel_dp_link_training.c | 387 +++++++-----------
>  1 file changed, 140 insertions(+), 247 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index e92c62bcc9b85..f83944eaac128 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -26,6 +26,43 @@
>  #include "intel_dp.h"
>  #include "intel_dp_link_training.h"
>  
> +__printf(4, 5)
> +static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
> +		   bool is_error, const char *format, ...)
> +{
> +	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> +	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> +	struct intel_connector *connector = intel_dp->attached_connector;
> +	struct va_format vaf;
> +	va_list args;
> +
> +	if (drm_WARN_ON(&i915->drm, !connector))
> +		return;
> +
> +	va_start(args, format);
> +	vaf.fmt = format;
> +	vaf.va = &args;
> +
> +	if (is_error)
> +		drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> +			connector->base.base.id, connector->base.name,
> +			encoder->base.base.id, encoder->base.name,
> +			drm_dp_phy_name(dp_phy),
> +			&vaf);
> +	else
> +		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> +			    connector->base.base.id, connector->base.name,
> +			    encoder->base.base.id, encoder->base.name,
> +			    drm_dp_phy_name(dp_phy),
> +			    &vaf);
> +}
> +
> +#define lt_err(intel_dp, dp_phy, format, ...) \
> +	lt_msg(intel_dp, dp_phy, true, format, ## __VA_ARGS__)
> +
> +#define lt_dbg(intel_dp, dp_phy, format, ...) \
> +	lt_msg(intel_dp, dp_phy, false, format, ## __VA_ARGS__)
> +
>  static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
>  {
>  	memset(intel_dp->lttpr_common_caps, 0, sizeof(intel_dp->lttpr_common_caps));
> @@ -47,29 +84,21 @@ static void intel_dp_read_lttpr_phy_caps(struct intel_dp *intel_dp,
>  					 const u8 dpcd[DP_RECEIVER_CAP_SIZE],
>  					 enum drm_dp_phy dp_phy)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  	u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy);
>  
>  	if (drm_dp_read_lttpr_phy_caps(&intel_dp->aux, dpcd, dp_phy, phy_caps) < 0) {
> -		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> -			    "[ENCODER:%d:%s][%s] failed to read the PHY caps\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy));
> +		lt_dbg(intel_dp, dp_phy, "failed to read the PHY caps\n");
>  		return;
>  	}
>  
> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> -		    "[ENCODER:%d:%s][%s] PHY capabilities: %*ph\n",
> -		    encoder->base.base.id, encoder->base.name,
> -		    drm_dp_phy_name(dp_phy),
> -		    (int)sizeof(intel_dp->lttpr_phy_caps[0]),
> -		    phy_caps);
> +	lt_dbg(intel_dp, dp_phy, "PHY capabilities: %*ph\n",
> +	       (int)sizeof(intel_dp->lttpr_phy_caps[0]),
> +	       phy_caps);
>  }
>  
>  static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
>  					    const u8 dpcd[DP_RECEIVER_CAP_SIZE])
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  	int ret;
>  
>  	ret = drm_dp_read_lttpr_common_caps(&intel_dp->aux, dpcd,
> @@ -77,11 +106,9 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
>  	if (ret < 0)
>  		goto reset_caps;
>  
> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> -		    "[ENCODER:%d:%s] LTTPR common capabilities: %*ph\n",
> -		    encoder->base.base.id, encoder->base.name,
> -		    (int)sizeof(intel_dp->lttpr_common_caps),
> -		    intel_dp->lttpr_common_caps);
> +	lt_dbg(intel_dp, DP_PHY_DPRX, "LTTPR common capabilities: %*ph\n",
> +	       (int)sizeof(intel_dp->lttpr_common_caps),
> +	       intel_dp->lttpr_common_caps);
>  
>  	/* The minimum value of LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV is 1.4 */
>  	if (intel_dp->lttpr_common_caps[0] < 0x14)
> @@ -105,8 +132,6 @@ intel_dp_set_lttpr_transparent_mode(struct intel_dp *intel_dp, bool enable)
>  
>  static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	int lttpr_count;
>  	int i;
>  
> @@ -138,9 +163,8 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
>  		return 0;
>  
>  	if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) {
> -		drm_dbg_kms(&i915->drm,
> -			    "[ENCODER:%d:%s] Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n",
> -			    encoder->base.base.id, encoder->base.name);
> +		lt_dbg(intel_dp, DP_PHY_DPRX,
> +		       "Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n");
>  
>  		intel_dp_set_lttpr_transparent_mode(intel_dp, true);
>  		intel_dp_reset_lttpr_count(intel_dp);
> @@ -409,26 +433,22 @@ intel_dp_get_adjust_train(struct intel_dp *intel_dp,
>  			  enum drm_dp_phy dp_phy,
>  			  const u8 link_status[DP_LINK_STATUS_SIZE])
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	int lane;
>  
>  	if (intel_dp_is_uhbr(crtc_state)) {
> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
> -			    "TX FFE request: " TRAIN_REQ_FMT "\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy),
> -			    crtc_state->lane_count,
> -			    TRAIN_REQ_TX_FFE_ARGS(link_status));
> +		lt_dbg(intel_dp, dp_phy,
> +		       "128b/132b, lanes: %d, "
> +		       "TX FFE request: " TRAIN_REQ_FMT "\n",
> +		       crtc_state->lane_count,
> +		       TRAIN_REQ_TX_FFE_ARGS(link_status));
>  	} else {
> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
> -			    "vswing request: " TRAIN_REQ_FMT ", "
> -			    "pre-emphasis request: " TRAIN_REQ_FMT "\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy),
> -			    crtc_state->lane_count,
> -			    TRAIN_REQ_VSWING_ARGS(link_status),
> -			    TRAIN_REQ_PREEMPH_ARGS(link_status));
> +		lt_dbg(intel_dp, dp_phy,
> +		       "8b/10b, lanes: %d, "
> +		       "vswing request: " TRAIN_REQ_FMT ", "
> +		       "pre-emphasis request: " TRAIN_REQ_FMT "\n",
> +		       crtc_state->lane_count,
> +		       TRAIN_REQ_VSWING_ARGS(link_status),
> +		       TRAIN_REQ_PREEMPH_ARGS(link_status));
>  	}
>  
>  	for (lane = 0; lane < 4; lane++)
> @@ -487,16 +507,11 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
>  				       enum drm_dp_phy dp_phy,
>  				       u8 dp_train_pat)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
>  
>  	if (train_pat != DP_TRAINING_PATTERN_DISABLE)
> -		drm_dbg_kms(&i915->drm,
> -			    "[ENCODER:%d:%s][%s] Using DP training pattern TPS%c\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy),
> -			    dp_training_pattern_name(train_pat));
> +		lt_dbg(intel_dp, dp_phy, "Using DP training pattern TPS%c\n",
> +		       dp_training_pattern_name(train_pat));
>  
>  	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
>  }
> @@ -531,24 +546,21 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
>  				enum drm_dp_phy dp_phy)
>  {
>  	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  
>  	if (intel_dp_is_uhbr(crtc_state)) {
> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
> -			    "TX FFE presets: " TRAIN_SET_FMT "\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy),
> -			    crtc_state->lane_count,
> -			    TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
> +		lt_dbg(intel_dp, dp_phy,
> +		       "128b/132b, lanes: %d, "
> +		       "TX FFE presets: " TRAIN_SET_FMT "\n",
> +		       crtc_state->lane_count,
> +		       TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
>  	} else {
> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
> -			    "vswing levels: " TRAIN_SET_FMT ", "
> -			    "pre-emphasis levels: " TRAIN_SET_FMT "\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy),
> -			    crtc_state->lane_count,
> -			    TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
> -			    TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
> +		lt_dbg(intel_dp, dp_phy,
> +		       "8b/10b, lanes: %d, "
> +		       "vswing levels: " TRAIN_SET_FMT ", "
> +		       "pre-emphasis levels: " TRAIN_SET_FMT "\n",
> +		       crtc_state->lane_count,
> +		       TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
> +		       TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
>  	}
>  
>  	if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy))
> @@ -677,8 +689,6 @@ static bool
>  intel_dp_prepare_link_train(struct intel_dp *intel_dp,
>  			    const struct intel_crtc_state *crtc_state)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	u8 link_bw, rate_select;
>  
>  	if (intel_dp->prepare_link_retrain)
> @@ -699,24 +709,21 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp,
>  	 * link rates are not stable.
>  	 */
>  	if (!link_bw) {
> -		struct intel_connector *connector = intel_dp->attached_connector;
>  		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
>  
> -		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Reloading eDP link rates\n",
> -			    connector->base.base.id, connector->base.name);
> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Reloading eDP link rates\n");
>  
>  		drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,
>  				 sink_rates, sizeof(sink_rates));
>  	}
>  
>  	if (link_bw)
> -		drm_dbg_kms(&i915->drm,
> -			    "[ENCODER:%d:%s] Using LINK_BW_SET value %02x\n",
> -			    encoder->base.base.id, encoder->base.name, link_bw);
> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Using LINK_BW_SET value %02x\n",
> +		       link_bw);
>  	else
> -		drm_dbg_kms(&i915->drm,
> -			    "[ENCODER:%d:%s] Using LINK_RATE_SET value %02x\n",
> -			    encoder->base.base.id, encoder->base.name, rate_select);
> +		lt_dbg(intel_dp, DP_PHY_DPRX,
> +			    "Using LINK_RATE_SET value %02x\n",
> +			    rate_select);
>  	/*
>  	 * Spec DP2.1 Section 3.5.2.16
>  	 * Prior to LT DPTX should set 128b/132b DP Channel coding and then set link rate
> @@ -758,15 +765,10 @@ void
>  intel_dp_dump_link_status(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>  			  const u8 link_status[DP_LINK_STATUS_SIZE])
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> -
> -	drm_dbg_kms(&i915->drm,
> -		    "[ENCODER:%d:%s][%s] ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
> -		    encoder->base.base.id, encoder->base.name,
> -		    drm_dp_phy_name(dp_phy),
> -		    link_status[0], link_status[1], link_status[2],
> -		    link_status[3], link_status[4], link_status[5]);
> +	lt_dbg(intel_dp, dp_phy,
> +	       "ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
> +	       link_status[0], link_status[1], link_status[2],
> +	       link_status[3], link_status[4], link_status[5]);
>  }
>  
>  /*
> @@ -778,8 +780,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>  				      const struct intel_crtc_state *crtc_state,
>  				      enum drm_dp_phy dp_phy)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	u8 old_link_status[DP_LINK_STATUS_SIZE] = {};
>  	int voltage_tries, cr_tries, max_cr_tries;
>  	u8 link_status[DP_LINK_STATUS_SIZE];
> @@ -794,9 +794,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>  	if (!intel_dp_reset_link_train(intel_dp, crtc_state, dp_phy,
>  				       DP_TRAINING_PATTERN_1 |
>  				       DP_LINK_SCRAMBLING_DISABLE)) {
> -		drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to enable link training\n",
> -			encoder->base.base.id, encoder->base.name,
> -			drm_dp_phy_name(dp_phy));
> +		lt_err(intel_dp, dp_phy, "Failed to enable link training\n");
>  		return false;
>  	}
>  
> @@ -819,35 +817,24 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>  
>  		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
>  						     link_status) < 0) {
> -			drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to get link status\n",
> -				encoder->base.base.id, encoder->base.name,
> -				drm_dp_phy_name(dp_phy));
> +			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
>  			return false;
>  		}
>  
>  		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s][%s] Clock recovery OK\n",
> -				    encoder->base.base.id, encoder->base.name,
> -				    drm_dp_phy_name(dp_phy));
> +			lt_dbg(intel_dp, dp_phy, "Clock recovery OK\n");
>  			return true;
>  		}
>  
>  		if (voltage_tries == 5) {
>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s][%s] Same voltage tried 5 times\n",
> -				    encoder->base.base.id, encoder->base.name,
> -				    drm_dp_phy_name(dp_phy));
> +			lt_dbg(intel_dp, dp_phy, "Same voltage tried 5 times\n");
>  			return false;
>  		}
>  
>  		if (max_vswing_reached) {
>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s][%s] Max Voltage Swing reached\n",
> -				    encoder->base.base.id, encoder->base.name,
> -				    drm_dp_phy_name(dp_phy));
> +			lt_dbg(intel_dp, dp_phy, "Max Voltage Swing reached\n");
>  			return false;
>  		}
>  
> @@ -855,10 +842,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>  		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
>  					  link_status);
>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s][%s] Failed to update link training\n",
> -				encoder->base.base.id, encoder->base.name,
> -				drm_dp_phy_name(dp_phy));
> +			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
>  			return false;
>  		}
>  
> @@ -874,10 +858,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>  	}
>  
>  	intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> -	drm_err(&i915->drm,
> -		"[ENCODER:%d:%s][%s] Failed clock recovery %d times, giving up!\n",
> -		encoder->base.base.id, encoder->base.name,
> -		drm_dp_phy_name(dp_phy), max_cr_tries);
> +	lt_err(intel_dp, dp_phy, "Failed clock recovery %d times, giving up!\n",
> +	       max_cr_tries);
>  
>  	return false;
>  }
> @@ -911,11 +893,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
>  		return DP_TRAINING_PATTERN_4;
>  	} else if (crtc_state->port_clock == 810000) {
>  		if (!source_tps4)
> -			drm_dbg_kms(&i915->drm,
> -				    "8.1 Gbps link rate without source TPS4 support\n");
> +			lt_dbg(intel_dp, dp_phy,
> +			       "8.1 Gbps link rate without source TPS4 support\n");
>  		if (!sink_tps4)
> -			drm_dbg_kms(&i915->drm,
> -				    "8.1 Gbps link rate without sink TPS4 support\n");
> +			lt_dbg(intel_dp, dp_phy,
> +			       "8.1 Gbps link rate without sink TPS4 support\n");
>  	}
>  
>  	/*
> @@ -929,11 +911,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
>  		return  DP_TRAINING_PATTERN_3;
>  	} else if (crtc_state->port_clock >= 540000) {
>  		if (!source_tps3)
> -			drm_dbg_kms(&i915->drm,
> -				    ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
> +			lt_dbg(intel_dp, dp_phy,
> +			       ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
>  		if (!sink_tps3)
> -			drm_dbg_kms(&i915->drm,
> -				    ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
> +			lt_dbg(intel_dp, dp_phy,
> +			       ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
>  	}
>  
>  	return DP_TRAINING_PATTERN_2;
> @@ -949,8 +931,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>  					    const struct intel_crtc_state *crtc_state,
>  					    enum drm_dp_phy dp_phy)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	int tries;
>  	u32 training_pattern;
>  	u8 link_status[DP_LINK_STATUS_SIZE];
> @@ -969,10 +949,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>  	/* channel equalization */
>  	if (!intel_dp_set_link_train(intel_dp, crtc_state, dp_phy,
>  				     training_pattern)) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s][%s] Failed to start channel equalization\n",
> -			encoder->base.base.id, encoder->base.name,
> -			drm_dp_phy_name(dp_phy));
> +		lt_err(intel_dp, dp_phy, "Failed to start channel equalization\n");
>  		return false;
>  	}
>  
> @@ -981,10 +958,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>  
>  		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
>  						     link_status) < 0) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s][%s] Failed to get link status\n",
> -				encoder->base.base.id, encoder->base.name,
> -				drm_dp_phy_name(dp_phy));
> +			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
>  			break;
>  		}
>  
> @@ -992,21 +966,15 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>  		if (!drm_dp_clock_recovery_ok(link_status,
>  					      crtc_state->lane_count)) {
>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s][%s] Clock recovery check failed, cannot "
> -				    "continue channel equalization\n",
> -				    encoder->base.base.id, encoder->base.name,
> -				    drm_dp_phy_name(dp_phy));
> +			lt_dbg(intel_dp, dp_phy,
> +			       "Clock recovery check failed, cannot continue channel equalization\n");
>  			break;
>  		}
>  
>  		if (drm_dp_channel_eq_ok(link_status,
>  					 crtc_state->lane_count)) {
>  			channel_eq = true;
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s][%s] Channel EQ done. DP Training successful\n",
> -				    encoder->base.base.id, encoder->base.name,
> -				    drm_dp_phy_name(dp_phy));
> +			lt_dbg(intel_dp, dp_phy, "Channel EQ done. DP Training successful\n");
>  			break;
>  		}
>  
> @@ -1014,10 +982,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>  		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
>  					  link_status);
>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s][%s] Failed to update link training\n",
> -				encoder->base.base.id, encoder->base.name,
> -				drm_dp_phy_name(dp_phy));
> +			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
>  			break;
>  		}
>  	}
> @@ -1025,10 +990,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>  	/* Try 5 times, else fail and try at lower BW */
>  	if (tries == 5) {
>  		intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> -		drm_dbg_kms(&i915->drm,
> -			    "[ENCODER:%d:%s][%s] Channel equalization failed 5 times\n",
> -			    encoder->base.base.id, encoder->base.name,
> -			    drm_dp_phy_name(dp_phy));
> +		lt_dbg(intel_dp, dp_phy, "Channel equalization failed 5 times\n");
>  	}
>  
>  	return channel_eq;
> @@ -1047,13 +1009,12 @@ static int
>  intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
>  			    const struct intel_crtc_state *crtc_state)
>  {
> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>  	u8 sink_status;
>  	int ret;
>  
>  	ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_SINK_STATUS, &sink_status);
>  	if (ret != 1) {
> -		drm_dbg_kms(&i915->drm, "Failed to read sink status\n");
> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Failed to read sink status\n");
>  		return ret < 0 ? ret : -EIO;
>  	}
>  
> @@ -1079,9 +1040,6 @@ intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
>  void intel_dp_stop_link_train(struct intel_dp *intel_dp,
>  			      const struct intel_crtc_state *crtc_state)
>  {
> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -
>  	intel_dp->link_trained = true;
>  
>  	intel_dp_disable_dpcd_training_pattern(intel_dp, DP_PHY_DPRX);
> @@ -1090,9 +1048,7 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp,
>  
>  	if (intel_dp_is_uhbr(crtc_state) &&
>  	    wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
> -		drm_dbg_kms(&i915->drm,
> -			    "[ENCODER:%d:%s] 128b/132b intra-hop not clearing\n",
> -			    encoder->base.base.id, encoder->base.name);
> +		lt_dbg(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clearing\n");
>  	}
>  }
>  
> @@ -1101,8 +1057,6 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
>  			const struct intel_crtc_state *crtc_state,
>  			enum drm_dp_phy dp_phy)
>  {
> -	struct intel_connector *connector = intel_dp->attached_connector;
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  	bool ret = false;
>  
>  	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state, dp_phy))
> @@ -1114,13 +1068,10 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
>  	ret = true;
>  
>  out:
> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> -		    "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] Link Training %s at link rate = %d, lane count = %d\n",
> -		    connector->base.base.id, connector->base.name,
> -		    encoder->base.base.id, encoder->base.name,
> -		    drm_dp_phy_name(dp_phy),
> -		    ret ? "passed" : "failed",
> -		    crtc_state->port_clock, crtc_state->lane_count);
> +	lt_dbg(intel_dp, dp_phy,
> +	       "Link Training %s at link rate = %d, lane count = %d\n",
> +	       ret ? "passed" : "failed",
> +	       crtc_state->port_clock, crtc_state->lane_count);
>  
>  	return ret;
>  }
> @@ -1129,13 +1080,10 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
>  						     const struct intel_crtc_state *crtc_state)
>  {
>  	struct intel_connector *intel_connector = intel_dp->attached_connector;
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  
>  	if (intel_dp->hobl_active) {
> -		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> -			    "[ENCODER:%d:%s] Link Training failed with HOBL active, "
> -			    "not enabling it from now on",
> -			    encoder->base.base.id, encoder->base.name);
> +		lt_dbg(intel_dp, DP_PHY_DPRX,
> +		       "Link Training failed with HOBL active, not enabling it from now on\n");
>  		intel_dp->hobl_failed = true;
>  	} else if (intel_dp_get_link_train_fallback_values(intel_dp,
>  							   crtc_state->port_clock,
> @@ -1182,8 +1130,6 @@ static bool
>  intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>  			  const struct intel_crtc_state *crtc_state)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	u8 link_status[DP_LINK_STATUS_SIZE];
>  	int delay_us;
>  	int try, max_tries = 20;
> @@ -1198,9 +1144,7 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>  	 */
>  	if (!intel_dp_reset_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
>  				       DP_TRAINING_PATTERN_1)) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS1\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS1\n");
>  		return false;
>  	}
>  
> @@ -1208,27 +1152,21 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>  
>  	/* Read the initial TX FFE settings. */
>  	if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] Failed to read TX FFE presets\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to read TX FFE presets\n");
>  		return false;
>  	}
>  
>  	/* Update signal levels and training set as requested. */
>  	intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
>  	if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] Failed to set initial TX FFE settings\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to set initial TX FFE settings\n");
>  		return false;
>  	}
>  
>  	/* Start transmitting 128b/132b TPS2. */
>  	if (!intel_dp_set_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
>  				     DP_TRAINING_PATTERN_2)) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2\n");
>  		return false;
>  	}
>  
> @@ -1245,32 +1183,25 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>  		delay_us = drm_dp_128b132b_read_aux_rd_interval(&intel_dp->aux);
>  
>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Failed to read link status\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
>  			return false;
>  		}
>  
>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Downstream link training failure\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX,
> +			       "Downstream link training failure\n");
>  			return false;
>  		}
>  
>  		if (drm_dp_128b132b_lane_channel_eq_done(link_status, crtc_state->lane_count)) {
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s] Lane channel eq done\n",
> -				    encoder->base.base.id, encoder->base.name);
> +			lt_dbg(intel_dp, DP_PHY_DPRX, "Lane channel eq done\n");
>  			break;
>  		}
>  
>  		if (timeout) {
>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Lane channel eq timeout\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Lane channel eq timeout\n");
>  			return false;
>  		}
>  
> @@ -1280,18 +1211,14 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>  		/* Update signal levels and training set as requested. */
>  		intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Failed to update TX FFE settings\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to update TX FFE settings\n");
>  			return false;
>  		}
>  	}
>  
>  	if (try == max_tries) {
>  		intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] Max loop count reached\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "Max loop count reached\n");
>  		return false;
>  	}
>  
> @@ -1300,32 +1227,24 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>  			timeout = true; /* try one last time after deadline */
>  
>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Failed to read link status\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
>  			return false;
>  		}
>  
>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Downstream link training failure\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
>  			return false;
>  		}
>  
>  		if (drm_dp_128b132b_eq_interlane_align_done(link_status)) {
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s] Interlane align done\n",
> -				    encoder->base.base.id, encoder->base.name);
> +			lt_dbg(intel_dp, DP_PHY_DPRX, "Interlane align done\n");
>  			break;
>  		}
>  
>  		if (timeout) {
>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Interlane align timeout\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Interlane align timeout\n");
>  			return false;
>  		}
>  
> @@ -1343,16 +1262,12 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
>  			   const struct intel_crtc_state *crtc_state,
>  			   int lttpr_count)
>  {
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	u8 link_status[DP_LINK_STATUS_SIZE];
>  	unsigned long deadline;
>  
>  	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TRAINING_PATTERN_SET,
>  			       DP_TRAINING_PATTERN_2_CDS) != 1) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2 CDS\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2 CDS\n");
>  		return false;
>  	}
>  
> @@ -1368,34 +1283,26 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
>  		usleep_range(2000, 3000);
>  
>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Failed to read link status\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
>  			return false;
>  		}
>  
>  		if (drm_dp_128b132b_eq_interlane_align_done(link_status) &&
>  		    drm_dp_128b132b_cds_interlane_align_done(link_status) &&
>  		    drm_dp_128b132b_lane_symbol_locked(link_status, crtc_state->lane_count)) {
> -			drm_dbg_kms(&i915->drm,
> -				    "[ENCODER:%d:%s] CDS interlane align done\n",
> -				    encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "CDS interlane align done\n");
>  			break;
>  		}
>  
>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] Downstream link training failure\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
>  			return false;
>  		}
>  
>  		if (timeout) {
>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> -			drm_err(&i915->drm,
> -				"[ENCODER:%d:%s] CDS timeout\n",
> -				encoder->base.base.id, encoder->base.name);
> +			lt_err(intel_dp, DP_PHY_DPRX, "CDS timeout\n");
>  			return false;
>  		}
>  	}
> @@ -1411,15 +1318,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
>  			     const struct intel_crtc_state *crtc_state,
>  			     int lttpr_count)
>  {
> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> -	struct intel_connector *connector = intel_dp->attached_connector;
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  	bool passed = false;
>  
>  	if (wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
> -		drm_err(&i915->drm,
> -			"[ENCODER:%d:%s] 128b/132b intra-hop not clear\n",
> -			encoder->base.base.id, encoder->base.name);
> +		lt_err(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clear\n");
>  		return false;
>  	}
>  
> @@ -1427,12 +1329,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
>  	    intel_dp_128b132b_lane_cds(intel_dp, crtc_state, lttpr_count))
>  		passed = true;
>  
> -	drm_dbg_kms(&i915->drm,
> -		    "[CONNECTOR:%d:%s][ENCODER:%d:%s] 128b/132b Link Training %s at link rate = %d, lane count = %d\n",
> -		    connector->base.base.id, connector->base.name,
> -		    encoder->base.base.id, encoder->base.name,
> -		    passed ? "passed" : "failed",
> -		    crtc_state->port_clock, crtc_state->lane_count);
> +	lt_dbg(intel_dp, DP_PHY_DPRX,
> +	       "128b/132b Link Training %s at link rate = %d, lane count = %d\n",
> +	       passed ? "passed" : "failed",
> +	       crtc_state->port_clock, crtc_state->lane_count);
>  
>  	return passed;
>  }
> @@ -1451,8 +1351,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
>  			       const struct intel_crtc_state *crtc_state)
>  {
>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> -	struct intel_connector *connector = intel_dp->attached_connector;
> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  	bool passed;
>  
>  	/*
> @@ -1485,10 +1383,7 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
>  	 * ignore_long_hpd flag can unset from the testcase.
>  	 */
>  	if (!passed && i915->display.hotplug.ignore_long_hpd) {
> -		drm_dbg_kms(&i915->drm,
> -			    "[CONNECTOR:%d:%s][ENCODER:%d:%s] Ignore the link failure\n",
> -			    connector->base.base.id, connector->base.name,
> -			    encoder->base.base.id, encoder->base.name);
> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Ignore the link failure\n");
>  		return;
>  	}
>  
> @@ -1499,8 +1394,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
>  void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
>  				 const struct intel_crtc_state *crtc_state)
>  {
> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> -
>  	/*
>  	 * VIDEO_DIP_CTL register bit 31 should be set to '0' to not
>  	 * disable SDP CRC. This is applicable for Display version 13.
> @@ -1513,5 +1406,5 @@ void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
>  				   DP_SDP_ERROR_DETECTION_CONFIGURATION,
>  				   DP_SDP_CRC16_128B132B_EN);
>  
> -	drm_dbg_kms(&i915->drm, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
> +	lt_dbg(intel_dp, DP_PHY_DPRX, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
>  }
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 08/12] drm/i915/dp: Convert link training error to debug message on disconnected sink

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:44AM +0300, Imre Deak wrote:
> If a sink is disconnected it's expected that link training actions will
> fail on it, so downgrade the error messages about such actions to be a
> debug message. Such - expected - link training failures are more
> frequent after a follow up patch, after which an active TypeC link is
> reset after the sink is disconnected which also involves a link
> training.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c               |  2 +-
>  drivers/gpu/drm/i915/display/intel_dp.h               |  1 +
>  drivers/gpu/drm/i915/display/intel_dp_link_training.c | 11 +++++++++--
>  3 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 4361c1ac65c3a..1942a05719776 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -4179,7 +4179,7 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
>  	return ret;
>  }
>  
> -static bool intel_dp_is_connected(struct intel_dp *intel_dp)
> +bool intel_dp_is_connected(struct intel_dp *intel_dp)
>  {
>  	struct intel_connector *connector = intel_dp->attached_connector;
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index ef39e4f7a329e..488da392fafe5 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -42,6 +42,7 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
>  			      int link_rate, int lane_count);
>  int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
>  					    int link_rate, u8 lane_count);
> +bool intel_dp_is_connected(struct intel_dp *intel_dp);
>  int intel_dp_retrain_link(struct intel_encoder *encoder,
>  			  struct drm_modeset_acquire_ctx *ctx);
>  void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index f83944eaac128..2fe076e2d64b3 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -33,6 +33,7 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>  	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>  	struct intel_connector *connector = intel_dp->attached_connector;
> +	const char *discon_str = "";
>  	struct va_format vaf;
>  	va_list args;
>  
> @@ -43,6 +44,11 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>  	vaf.fmt = format;
>  	vaf.va = &args;
>  
> +	if (is_error && !intel_dp_is_connected(intel_dp)) {
> +		discon_str = " (sink disconnected)";
> +		is_error = false;
> +	}
> +
>  	if (is_error)
>  		drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
>  			connector->base.base.id, connector->base.name,
> @@ -50,11 +56,12 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>  			drm_dp_phy_name(dp_phy),
>  			&vaf);
>  	else
> -		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> +		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV%s\n",
>  			    connector->base.base.id, connector->base.name,
>  			    encoder->base.base.id, encoder->base.name,
>  			    drm_dp_phy_name(dp_phy),
> -			    &vaf);
> +			    &vaf,
> +			    discon_str);
>  }
>  
>  #define lt_err(intel_dp, dp_phy, format, ...) \
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 09/12] drm/i915/dp: Prevent link training fallback on disconnected port

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:45AM +0300, Imre Deak wrote:
> Prevent downgrading the link training maximum lane count/rate if the
> sink is disconnected - and so the link training failure is expected. In
> such cases modeset failures due to the reduced max link params would be
> just confusing for user space (instead of which the correct thing it
> should act on is the sink disconnect signaled by a hotplug event,
> requiring a disabling modeset).
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  drivers/gpu/drm/i915/display/intel_dp.h               | 1 +
>  drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 +++++
>  2 files changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index 488da392fafe5..ca12a1733df6f 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -102,6 +102,7 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
>  void intel_read_dp_sdp(struct intel_encoder *encoder,
>  		       struct intel_crtc_state *crtc_state,
>  		       unsigned int type);
> +bool intel_dp_is_connected(struct intel_dp *intel_dp);
>  bool intel_digital_port_connected(struct intel_encoder *encoder);
>  int intel_dp_dsc_compute_bpp(struct intel_dp *intel_dp, u8 dsc_max_bpc);
>  u16 intel_dp_dsc_get_output_bpp(struct drm_i915_private *i915,
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index 2fe076e2d64b3..fcccf410f7693 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -1088,6 +1088,11 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
>  {
>  	struct intel_connector *intel_connector = intel_dp->attached_connector;
>  
> +	if (!intel_dp_is_connected(intel_dp)) {
> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Link Training failed on disconnected sink.\n");
> +		return;
> +	}
> +
>  	if (intel_dp->hobl_active) {
>  		lt_dbg(intel_dp, DP_PHY_DPRX,
>  		       "Link Training failed with HOBL active, not enabling it from now on\n");
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 10/12] drm/i915/dp: Factor out intel_dp_get_active_pipes()

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:46AM +0300, Imre Deak wrote:
> Factor out a helper used by a follow up patch to reset an active DP
> link.
> 
> No functional changes.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 20 ++++++++++----------
>  1 file changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 1942a05719776..7a349cb9fc2e6 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -4126,9 +4126,9 @@ static bool intel_dp_has_connector(struct intel_dp *intel_dp,
>  	return false;
>  }
>  
> -static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
> -				      struct drm_modeset_acquire_ctx *ctx,
> -				      u8 *pipe_mask)
> +static int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
> +				     struct drm_modeset_acquire_ctx *ctx,
> +				     u8 *pipe_mask)
>  {
>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>  	struct drm_connector_list_iter conn_iter;
> @@ -4137,9 +4137,6 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
>  
>  	*pipe_mask = 0;
>  
> -	if (!intel_dp_needs_link_retrain(intel_dp))
> -		return 0;
> -
>  	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
>  	for_each_intel_connector_iter(connector, &conn_iter) {
>  		struct drm_connector_state *conn_state =
> @@ -4173,9 +4170,6 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
>  	}
>  	drm_connector_list_iter_end(&conn_iter);
>  
> -	if (!intel_dp_needs_link_retrain(intel_dp))
> -		*pipe_mask = 0;
> -
>  	return ret;
>  }
>  
> @@ -4204,13 +4198,19 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
>  	if (ret)
>  		return ret;
>  
> -	ret = intel_dp_prep_link_retrain(intel_dp, ctx, &pipe_mask);
> +	if (!intel_dp_needs_link_retrain(intel_dp))
> +		return 0;
> +
> +	ret = intel_dp_get_active_pipes(intel_dp, ctx, &pipe_mask);
>  	if (ret)
>  		return ret;
>  
>  	if (pipe_mask == 0)
>  		return 0;
>  
> +	if (!intel_dp_needs_link_retrain(intel_dp))
> +		return 0;
> +
>  	drm_dbg_kms(&dev_priv->drm, "[ENCODER:%d:%s] retraining link\n",
>  		    encoder->base.base.id, encoder->base.name);
>  
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 11/12] drm/i915: Factor out a helper for handling atomic modeset locks/state

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:47AM +0300, Imre Deak wrote:
> This patch simplifying the handling of modeset locks and atomic state
> for an atomic commit is based on
> 
> https://lore.kernel.org/all/20210715184954.7794-2-ville.syrjala@linux.intel.com/
> 
> adding the helper to i915. I find this approach preferrable than
> open-coding the corresponding steps (fixed for me an atomic
> state reset during a DEADLK retry, which I missed in the open-coded
> version) and also better than the existing
> DRM_MODESET_LOCK_ALL_BEGIN/END macros for the reasons described in the
> above original patchset.
> 
> This change takes the helper into use only for atomic commits during DDI
> hotplug handling, as a preparation for a follow-up patch adding a
> similar commit started from the same spot. Other places doing a
> driver-internal atomic commit is to be converted by a follow-up
> patchset.
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  drivers/gpu/drm/i915/Makefile                 |  1 +
>  drivers/gpu/drm/i915/display/intel_ddi.c      | 17 ++-----
>  .../gpu/drm/i915/display/intel_modeset_lock.c | 50 +++++++++++++++++++
>  .../gpu/drm/i915/display/intel_modeset_lock.h | 33 ++++++++++++
>  4 files changed, 87 insertions(+), 14 deletions(-)
>  create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_lock.c
>  create mode 100644 drivers/gpu/drm/i915/display/intel_modeset_lock.h
> 
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index 9af76e376ca91..ef6feb2aad2ad 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -263,6 +263,7 @@ i915-y += \
>  	display/intel_hti.o \
>  	display/intel_load_detect.o \
>  	display/intel_lpe_audio.o \
> +	display/intel_modeset_lock.o \
>  	display/intel_modeset_verify.o \
>  	display/intel_modeset_setup.o \
>  	display/intel_overlay.o \
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 55f36d9d509c6..eb391fff0f1be 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -63,6 +63,7 @@
>  #include "intel_hti.h"
>  #include "intel_lspcon.h"
>  #include "intel_mg_phy_regs.h"
> +#include "intel_modeset_lock.h"
>  #include "intel_pps.h"
>  #include "intel_psr.h"
>  #include "intel_quirks.h"
> @@ -4400,26 +4401,14 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
>  
>  	state = intel_encoder_hotplug(encoder, connector);
>  
> -	drm_modeset_acquire_init(&ctx, 0);
> -
> -	for (;;) {
> +	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
>  		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
>  			ret = intel_hdmi_reset_link(encoder, &ctx);
>  		else
>  			ret = intel_dp_retrain_link(encoder, &ctx);
> -
> -		if (ret == -EDEADLK) {
> -			drm_modeset_backoff(&ctx);
> -			continue;
> -		}
> -
> -		break;
>  	}
>  
> -	drm_modeset_drop_locks(&ctx);
> -	drm_modeset_acquire_fini(&ctx);
> -	drm_WARN(encoder->base.dev, ret,
> -		 "Acquiring modeset locks failed with %i\n", ret);
> +	drm_WARN_ON(encoder->base.dev, ret);
>  
>  	/*
>  	 * Unpowered type-c dongles can take some time to boot and be
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_lock.c b/drivers/gpu/drm/i915/display/intel_modeset_lock.c
> new file mode 100644
> index 0000000000000..8fb6fd849a75d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_lock.c
> @@ -0,0 +1,50 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2023 Intel Corporation
> + */
> +
> +#include <drm/drm_modeset_lock.h>
> +
> +#include "intel_display_types.h"
> +#include "intel_modeset_lock.h"
> +
> +void _intel_modeset_lock_begin(struct drm_modeset_acquire_ctx *ctx,
> +			       struct intel_atomic_state *state,
> +			       unsigned int flags, int *ret)
> +{
> +	drm_modeset_acquire_init(ctx, flags);
> +
> +	if (state)
> +		state->base.acquire_ctx = ctx;
> +
> +	*ret = -EDEADLK;
> +}
> +
> +bool _intel_modeset_lock_loop(int *ret)
> +{
> +	if (*ret == -EDEADLK) {
> +		*ret = 0;
> +		return true;
> +	}
> +
> +	return false;
> +}
> +
> +void _intel_modeset_lock_end(struct drm_modeset_acquire_ctx *ctx,
> +			     struct intel_atomic_state *state,
> +			     int *ret)
> +{
> +	if (*ret == -EDEADLK) {
> +		if (state)
> +			drm_atomic_state_clear(&state->base);
> +
> +		*ret = drm_modeset_backoff(ctx);
> +		if (*ret == 0) {
> +			*ret = -EDEADLK;
> +			return;
> +		}
> +	}
> +
> +	drm_modeset_drop_locks(ctx);
> +	drm_modeset_acquire_fini(ctx);
> +}
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_lock.h b/drivers/gpu/drm/i915/display/intel_modeset_lock.h
> new file mode 100644
> index 0000000000000..edb5099bcd99c
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_lock.h
> @@ -0,0 +1,33 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2023 Intel Corporation
> + */
> +
> +#ifndef __INTEL_MODESET_LOCK_H__
> +#define __INTEL_MODESET_LOCK_H__
> +
> +#include <linux/types.h>
> +
> +struct drm_modeset_acquire_ctx;
> +struct intel_atomic_state;
> +
> +void _intel_modeset_lock_begin(struct drm_modeset_acquire_ctx *ctx,
> +			       struct intel_atomic_state *state,
> +			       unsigned int flags,
> +			       int *ret);
> +bool _intel_modeset_lock_loop(int *ret);
> +void _intel_modeset_lock_end(struct drm_modeset_acquire_ctx *ctx,
> +			     struct intel_atomic_state *state,
> +			     int *ret);
> +
> +/*
> + * Note that one must always use "continue" rather than
> + * "break" or "return" to handle errors within the
> + * intel_modeset_lock_ctx_retry() block.
> + */
> +#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
> +	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
> +	     _intel_modeset_lock_loop(&(ret)); \
> +	     _intel_modeset_lock_end((ctx), (state), &(ret)))
> +
> +#endif /* __INTEL_MODESET_LOCK_H__ */
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 02/12] drm/i915: Make the CRTC state consistent during sanitize-disabling

[Imre Deak]

On Thu, May 04, 2023 at 05:38:12PM +0300, Ville Syrjälä wrote:
> On Thu, May 04, 2023 at 02:10:38AM +0300, Imre Deak wrote:
> > Make sure that the CRTC state is reset correctly, as expected after
> > disabling the CRTC.
> > 
> > In particular this change will:
> > - Zero all the CSC blob pointers after intel_crtc_free_hw_state()
> >   has freed them.
> > - Zero the shared DPLL and port PLL pointers and clear the
> >   corresponding active flags in the PLL state.
> > - Reset all the transcoder and pipe fields.
> > 
> > v2:
> > - Reset fully the CRTC state. (Ville)
> > - Clear pipe active flags in the DPLL state.
> > 
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_modeset_setup.c | 13 +++++++------
> >  1 file changed, 7 insertions(+), 6 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > index eefa4018dc0c2..2ca66e49d8863 100644
> > --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > @@ -88,13 +88,14 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
> >  	crtc->active = false;
> >  	crtc->base.enabled = false;
> >  
> > -	drm_WARN_ON(&i915->drm,
> > -		    drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0);
> > -	crtc_state->uapi.active = false;
> > -	crtc_state->uapi.connector_mask = 0;
> > -	crtc_state->uapi.encoder_mask = 0;
> > +	if (crtc_state->shared_dpll) {
> > +		crtc_state->shared_dpll->state.pipe_mask &= ~BIT(pipe);
> 
> So that's basiclly unreference_shared_dpll(). I wonder if we can
> refactor that a bit to by usable here?

Yes, makes sense I can add a
intel_unreference_shared_dpll_crtc(const struct intel_crtc *,
				   const struct intel_shared_dpll *,
				   struct intel_shared_dpll_state *);
for this.

> 
> > +		crtc_state->shared_dpll->active_mask &= ~BIT(pipe);
> > +	}
> 
> Isn't this part of disable_shared_dpll()?

Yes, it is.

> Are we not calling that?

Yes, missed that the active flag gets cleared there. Only the above
unreference is needed then, will fix this.

> 
> > +
> > +	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
> >  	intel_crtc_free_hw_state(crtc_state);
> > -	memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
> > +	intel_crtc_state_reset(crtc_state, crtc);
> >  
> >  	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
> >  		encoder->base.crtc = NULL;
> > -- 
> > 2.37.2
> 
> -- 
> Ville Syrjälä
> Intel

Re: [Intel-gfx] [PATCH v2 06/12] drm/i915: Add support for disabling any CRTCs during HW readout/sanitization

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:42AM +0300, Imre Deak wrote:
> During HW readout/sanitization CRTCs can be disabled only if they don't
> have an attached encoder (and so the encoder disable hooks don't need to
> be called). An upcoming patch will need to disable CRTCs also with an
> attached an encoder, so add support for this.
> 
> For bigjoiner configs the encoder disabling hooks require the slave CRTC
> states, so add these too to the atomic state. Since the connector atomic
> state is already up-to-date when the CRTC is disabled the connector
> state needs to be updated (reset) after the CRTC is disabled, make this
> so. Follow the proper order of disabling first all bigjoiner slaves,
> then any port synced CRTC slaves followed by the CRTC originally
> requested to be disabled.
> 
> v2:
> - Fix calculating the bigjoiner_masters mask in a port sync config,
>   (Ville)
> - Keep _noatomic suffix in intel_crtc_disable_noatomic(). (Ville)
> - Rebase on full CRTC state reset in this patchset, not requiring
>   resetting the bigjoiner state separately and (instead) resetting
>   the full atomic CRTC and related global state after all linked
>   pipes got disabled.
> - Disable portsync slaves before a portsync master.
> - Disable a portsync master if a linked portsync slave is disabled.
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
>  drivers/gpu/drm/i915/display/intel_display.h  |   1 +
>  .../drm/i915/display/intel_modeset_setup.c    | 159 ++++++++++++++++--
>  3 files changed, 151 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index ca95cf6764c04..f567c6bbc2a05 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -225,7 +225,7 @@ is_trans_port_sync_slave(const struct intel_crtc_state *crtc_state)
>  	return crtc_state->master_transcoder != INVALID_TRANSCODER;
>  }
>  
> -static bool
> +bool
>  is_trans_port_sync_master(const struct intel_crtc_state *crtc_state)
>  {
>  	return crtc_state->sync_mode_slaves_mask != 0;
> diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
> index ac95961f68ba7..3ecc5649a73ab 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.h
> +++ b/drivers/gpu/drm/i915/display/intel_display.h
> @@ -407,6 +407,7 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
>  				bool bigjoiner);
>  enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port);
>  bool is_trans_port_sync_mode(const struct intel_crtc_state *state);
> +bool is_trans_port_sync_master(const struct intel_crtc_state *state);
>  bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state);
>  bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state);
>  u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state);
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index 9848d20582963..1e10580e5ab31 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -38,9 +38,8 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
>  		to_intel_crtc_state(crtc->base.state);
>  	struct intel_plane *plane;
>  	struct drm_atomic_state *state;
> -	struct intel_crtc_state *temp_crtc_state;
> +	struct intel_crtc *temp_crtc;
>  	enum pipe pipe = crtc->pipe;
> -	int ret;
>  
>  	if (!crtc_state->hw.active)
>  		return;
> @@ -65,10 +64,17 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
>  	to_intel_atomic_state(state)->internal = true;
>  
>  	/* Everything's already locked, -EDEADLK can't happen. */
> -	temp_crtc_state = intel_atomic_get_crtc_state(state, crtc);
> -	ret = drm_atomic_add_affected_connectors(state, &crtc->base);
> +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
> +					 BIT(pipe) |
> +					 intel_crtc_bigjoiner_slave_pipes(crtc_state)) {
> +		struct intel_crtc_state *temp_crtc_state =
> +			intel_atomic_get_crtc_state(state, temp_crtc);
> +		int ret;
>  
> -	drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
> +		ret = drm_atomic_add_affected_connectors(state, &temp_crtc->base);
> +
> +		drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
> +	}
>  
>  	i915->display.funcs.display->crtc_disable(to_intel_atomic_state(state), crtc);
>  
> @@ -105,9 +111,38 @@ static void set_encoder_for_connector(struct intel_connector *connector,
>  	}
>  }
>  
> -static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> +static void reset_encoder_connector_state(struct intel_encoder *encoder)
> +{
> +	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> +	struct intel_connector *connector;
> +	struct drm_connector_list_iter conn_iter;
> +
> +	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
> +	for_each_intel_connector_iter(connector, &conn_iter) {
> +		if (connector->base.encoder != &encoder->base)
> +			continue;
> +
> +		set_encoder_for_connector(connector, NULL);
> +
> +		connector->base.dpms = DRM_MODE_DPMS_OFF;
> +		connector->base.encoder = NULL;
> +	}
> +	drm_connector_list_iter_end(&conn_iter);
> +}
> +
> +static void reset_crtc_encoder_state(struct intel_crtc *crtc)
>  {
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  	struct intel_encoder *encoder;
> +
> +	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
> +		reset_encoder_connector_state(encoder);
> +		encoder->base.crtc = NULL;
> +	}
> +}
> +
> +static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> +{
>  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  	struct intel_bw_state *bw_state =
>  		to_intel_bw_state(i915->display.bw.obj.state);
> @@ -123,8 +158,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
>  	intel_crtc_free_hw_state(crtc_state);
>  	intel_crtc_state_reset(crtc_state, crtc);
>  
> -	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
> -		encoder->base.crtc = NULL;
> +	reset_crtc_encoder_state(crtc);
>  
>  	intel_fbc_disable(crtc);
>  	intel_update_watermarks(i915);
> @@ -141,11 +175,116 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
>  	bw_state->num_active_planes[pipe] = 0;
>  }
>  
> +/*
> + * Return all the pipes using a transcoder in @transcoder_mask.
> + * For bigjoiner configs return only the bigjoiner master.
> + */
> +static u32 get_transcoder_pipes(struct drm_i915_private *i915,
> +				u32 transcoder_mask)
> +{
> +	struct intel_crtc *temp_crtc;
> +	u32 pipes = 0;

I think we generally use u8 for pipe/transcoder masks. Ditto elsewhere.

> +
> +	for_each_intel_crtc(&i915->drm, temp_crtc) {
> +		struct intel_crtc_state *temp_crtc_state =
> +			to_intel_crtc_state(temp_crtc->base.state);
> +
> +		if (temp_crtc_state->cpu_transcoder == INVALID_TRANSCODER)
> +			continue;
> +
> +		if (intel_crtc_is_bigjoiner_slave(temp_crtc_state))
> +			continue;
> +
> +		if (transcoder_mask & BIT(temp_crtc_state->cpu_transcoder))
> +			pipes |= BIT(temp_crtc->pipe);
> +	}
> +
> +	return pipes;
> +}
> +
> +/*
> + * Return the port sync master and slave pipes linked to @crtc.
> + * For bigjoiner configs return only the bigjoiner master pipes.
> + */
> +static void get_portsync_pipes(struct intel_crtc *crtc,
> +			       u32 *master_pipe_mask, u32 *slave_pipes_mask)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	struct intel_crtc_state *crtc_state =
> +		to_intel_crtc_state(crtc->base.state);
> +	struct intel_crtc *master_crtc;
> +	struct intel_crtc_state *master_crtc_state;
> +	enum transcoder master_transcoder;
> +
> +	if (!is_trans_port_sync_mode(crtc_state)) {
> +		*master_pipe_mask = BIT(crtc->pipe);
> +		*slave_pipes_mask = 0;
> +
> +		return;
> +	}
> +
> +	if (is_trans_port_sync_master(crtc_state))
> +		master_transcoder = crtc_state->cpu_transcoder;
> +	else
> +		master_transcoder = crtc_state->master_transcoder;
> +
> +	*master_pipe_mask = get_transcoder_pipes(i915, BIT(master_transcoder));
> +	drm_WARN_ON(&i915->drm, hweight32(*master_pipe_mask) != 1);

or perhaps is_power_of_two(). Doesn't really matter I suppose.

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

> +
> +	master_crtc = intel_crtc_for_pipe(i915, ffs(*master_pipe_mask) - 1);
> +	master_crtc_state = to_intel_crtc_state(master_crtc->base.state);
> +	*slave_pipes_mask = get_transcoder_pipes(i915, master_crtc_state->sync_mode_slaves_mask);
> +}
> +
> +static u32 get_bigjoiner_slave_pipes(struct drm_i915_private *i915, u32 master_pipes_mask)
> +{
> +	struct intel_crtc *master_crtc;
> +	u32 pipes = 0;
> +
> +	for_each_intel_crtc_in_pipe_mask(&i915->drm, master_crtc, master_pipes_mask) {
> +		struct intel_crtc_state *master_crtc_state =
> +			to_intel_crtc_state(master_crtc->base.state);
> +
> +		pipes |= intel_crtc_bigjoiner_slave_pipes(master_crtc_state);
> +	}
> +
> +	return pipes;
> +}
> +
>  static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
>  					struct drm_modeset_acquire_ctx *ctx)
>  {
> -	intel_crtc_disable_noatomic_begin(crtc, ctx);
> -	intel_crtc_disable_noatomic_complete(crtc);
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	u32 portsync_master_mask;
> +	u32 portsync_slaves_mask;
> +	u32 bigjoiner_slaves_mask;
> +	struct intel_crtc *temp_crtc;
> +
> +	/* TODO: Add support for MST */
> +	get_portsync_pipes(crtc, &portsync_master_mask, &portsync_slaves_mask);
> +	bigjoiner_slaves_mask = get_bigjoiner_slave_pipes(i915,
> +							  portsync_master_mask |
> +							  portsync_slaves_mask);
> +
> +	drm_WARN_ON(&i915->drm,
> +		    portsync_master_mask & portsync_slaves_mask ||
> +		    portsync_master_mask & bigjoiner_slaves_mask ||
> +		    portsync_slaves_mask & bigjoiner_slaves_mask);
> +
> +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, bigjoiner_slaves_mask)
> +		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
> +
> +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_slaves_mask)
> +		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
> +
> +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_master_mask)
> +		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
> +
> +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
> +					 bigjoiner_slaves_mask |
> +					 portsync_slaves_mask |
> +					 portsync_master_mask)
> +		intel_crtc_disable_noatomic_complete(temp_crtc);
>  }
>  
>  static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 04/12] drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:40AM +0300, Imre Deak wrote:
> Split calling the CRTC/encoder disabling hooks and updating the CRTC and
> DPLL object states from updating the CRTC and atomic state and other
> global state (BW, CDCLK, DBUF) into separate functions. When disabling a
> bigjoiner configuration the latter step can be done only after all the
> linked pipes are disabled, so this change prepares for that.
> 
> No functional changes.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>

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

> ---
>  .../drm/i915/display/intel_modeset_setup.c    | 33 ++++++++++++++-----
>  1 file changed, 24 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index c1a4a7bcc56ae..922ea5ddd0c5b 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -30,17 +30,10 @@
>  #include "intel_wm.h"
>  #include "skl_watermark.h"
>  
> -static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
> -					struct drm_modeset_acquire_ctx *ctx)
> +static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
> +					      struct drm_modeset_acquire_ctx *ctx)
>  {
> -	struct intel_encoder *encoder;
>  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> -	struct intel_bw_state *bw_state =
> -		to_intel_bw_state(i915->display.bw.obj.state);
> -	struct intel_cdclk_state *cdclk_state =
> -		to_intel_cdclk_state(i915->display.cdclk.obj.state);
> -	struct intel_dbuf_state *dbuf_state =
> -		to_intel_dbuf_state(i915->display.dbuf.obj.state);
>  	struct intel_crtc_state *crtc_state =
>  		to_intel_crtc_state(crtc->base.state);
>  	struct intel_plane *plane;
> @@ -92,6 +85,21 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
>  		crtc_state->shared_dpll->state.pipe_mask &= ~BIT(pipe);
>  		crtc_state->shared_dpll->active_mask &= ~BIT(pipe);
>  	}
> +}
> +
> +static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> +{
> +	struct intel_encoder *encoder;
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +	struct intel_bw_state *bw_state =
> +		to_intel_bw_state(i915->display.bw.obj.state);
> +	struct intel_cdclk_state *cdclk_state =
> +		to_intel_cdclk_state(i915->display.cdclk.obj.state);
> +	struct intel_dbuf_state *dbuf_state =
> +		to_intel_dbuf_state(i915->display.dbuf.obj.state);
> +	struct intel_crtc_state *crtc_state =
> +		to_intel_crtc_state(crtc->base.state);
> +	enum pipe pipe = crtc->pipe;
>  
>  	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
>  	intel_crtc_free_hw_state(crtc_state);
> @@ -115,6 +123,13 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
>  	bw_state->num_active_planes[pipe] = 0;
>  }
>  
> +static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
> +					struct drm_modeset_acquire_ctx *ctx)
> +{
> +	intel_crtc_disable_noatomic_begin(crtc, ctx);
> +	intel_crtc_disable_noatomic_complete(crtc);
> +}
> +
>  static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
>  {
>  	struct intel_connector *connector;
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 12/12] drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects

[Ville Syrjälä]

On Thu, May 04, 2023 at 02:10:48AM +0300, Imre Deak wrote:
> If the output on a DP-alt link with its sink disconnected is kept
> enabled for too long (about 20 sec), then some IOM/TCSS firmware timeout
> will cause havoc on the PCI bus, at least for other GFX devices on it
> which will stop powering up. Since user space is not guaranteed to do a
> disabling modeset in time, switch such disconnected but active links to
> TBT mode - which is without such shortcomings - with a 2 second delay.
> 
> If the above condition is detected already during the driver load/system
> resume sanitization step disable the output instead, as at that point no
> user space or kernel client depends on a consistent output state yet and
> because subsequent atomic modeset on such connectors - without the
> actual sink capabilities available - can fail.
> 
> An active/disconnected port as above will also block the HPD status of
> other active/disconnected ports to get updated (stuck in the connected
> state), until the former port is disabled, its PHY is disconnected and
> a ~10 ms delay has elapsed. This means the link state for all TypeC
> ports/CRTCs must be rechecked after a CRTC is disabled due to the above
> reason. For this disconnect the PHY synchronously after the CRTC/port is
> disabled and recheck all CRTCs for the above condition whenever such a
> port is disabled.
> 
> To account for a race condition during driver loading where the sink is
> disconnected after the above sanitization step and before the HPD
> interrupts get enabled, do an explicit check/link reset if needed from
> the encoder's late_register hook, which is called after the HPD
> interrupts are enabled already.
> 
> v2:
> - Handle an active/disconnected port blocking the HPD state update of
>   another active/disconnected port.
> - Cancel the delayed work resetting the link also from the encoder
>   enable/suspend/shutdown hooks.
> - Rebase on the earlier intel_modeset_lock_ctx_retry() addition,
>   fixing here the missed atomic state reset in case of a retry.
> - Fix handling of an error return from intel_atomic_get_crtc_state().
> - Recheck if the port needs to be reset after all the atomic state
>   is locked and async commits are waited on.
> 
> Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c      | 68 +++++++++++++--
>  .../drm/i915/display/intel_display_types.h    |  2 +
>  drivers/gpu/drm/i915/display/intel_dp.c       | 59 +++++++++++++
>  drivers/gpu/drm/i915/display/intel_dp.h       |  1 +
>  .../drm/i915/display/intel_modeset_setup.c    | 83 ++++++++++++++-----
>  drivers/gpu/drm/i915/display/intel_tc.c       | 29 +++++++
>  drivers/gpu/drm/i915/display/intel_tc.h       |  1 +
>  7 files changed, 215 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index eb391fff0f1be..db390b9c824ec 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3313,6 +3313,8 @@ static void intel_disable_ddi(struct intel_atomic_state *state,
>  			      const struct intel_crtc_state *old_crtc_state,
>  			      const struct drm_connector_state *old_conn_state)
>  {
> +	cancel_delayed_work(&enc_to_dig_port(encoder)->reset_link_work);
> +
>  	intel_hdcp_disable(to_intel_connector(old_conn_state->connector));
>  
>  	if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
> @@ -3381,6 +3383,8 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
>  	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
>  	bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
>  
> +	cancel_delayed_work(&dig_port->reset_link_work);
> +
>  	if (is_tc_port) {
>  		struct intel_crtc *master_crtc =
>  			to_intel_crtc(crtc_state->uapi.crtc);
> @@ -4229,9 +4233,53 @@ static void intel_ddi_encoder_reset(struct drm_encoder *encoder)
>  		intel_tc_port_init_mode(dig_port);
>  }
>  
> +static void intel_ddi_tc_port_reset_link_work(struct work_struct *work)
> +{
> +	struct intel_digital_port *dig_port =
> +		container_of(work, struct intel_digital_port, reset_link_work.work);
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +	struct intel_encoder *encoder = &dig_port->base;
> +
> +	mutex_lock(&i915->drm.mode_config.mutex);
> +
> +	if (intel_tc_port_link_needs_reset(dig_port)) {
> +		int ret;
> +
> +		drm_dbg_kms(&i915->drm,
> +			    "[ENCODER:%d:%s] TypeC DP-alt sink disconnected, resetting link\n",
> +			    encoder->base.base.id, encoder->base.name);
> +		ret = intel_dp_reset_link(encoder);
> +		drm_WARN_ON(&i915->drm, ret);
> +	}
> +
> +	mutex_unlock(&i915->drm.mode_config.mutex);
> +}
> +
> +static bool intel_ddi_tc_port_reset_link(struct intel_encoder *encoder)
> +{
> +	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> +
> +	if (!intel_tc_port_link_needs_reset(dig_port))
> +		return false;
> +
> +	queue_delayed_work(system_unbound_wq, &dig_port->reset_link_work, msecs_to_jiffies(2000));
> +
> +	return true;
> +}
> +
> +static int intel_ddi_encoder_late_register(struct drm_encoder *_encoder)
> +{
> +	struct intel_encoder *encoder = to_intel_encoder(_encoder);
> +
> +	intel_ddi_tc_port_reset_link(encoder);
> +
> +	return 0;
> +}
> +
>  static const struct drm_encoder_funcs intel_ddi_funcs = {
>  	.reset = intel_ddi_encoder_reset,
>  	.destroy = intel_ddi_encoder_destroy,
> +	.late_register = intel_ddi_encoder_late_register,
>  };
>  
>  static struct intel_connector *
> @@ -4401,14 +4449,16 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
>  
>  	state = intel_encoder_hotplug(encoder, connector);
>  
> -	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
> -		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
> -			ret = intel_hdmi_reset_link(encoder, &ctx);
> -		else
> -			ret = intel_dp_retrain_link(encoder, &ctx);
> -	}
> +	if (!intel_ddi_tc_port_reset_link(encoder)) {
> +		intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
> +			if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
> +				ret = intel_hdmi_reset_link(encoder, &ctx);
> +			else
> +				ret = intel_dp_retrain_link(encoder, &ctx);
> +		}
>  
> -	drm_WARN_ON(encoder->base.dev, ret);
> +		drm_WARN_ON(encoder->base.dev, ret);
> +	}
>  
>  	/*
>  	 * Unpowered type-c dongles can take some time to boot and be
> @@ -4624,6 +4674,7 @@ static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
>  	if (!intel_phy_is_tc(i915, phy))
>  		return;
>  
> +	cancel_delayed_work(&dig_port->reset_link_work);
>  	intel_tc_port_flush_work(dig_port);
>  }
>  
> @@ -4640,6 +4691,7 @@ static void intel_ddi_encoder_shutdown(struct intel_encoder *encoder)
>  	if (!intel_phy_is_tc(i915, phy))
>  		return;
>  
> +	cancel_delayed_work(&dig_port->reset_link_work);
>  	intel_tc_port_cleanup(dig_port);
>  }
>  
> @@ -4945,6 +4997,8 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
>  			encoder->pipe_mask = intel_ddi_splitter_pipe_mask(dev_priv);
>  	}
>  
> +	INIT_DELAYED_WORK(&dig_port->reset_link_work, intel_ddi_tc_port_reset_link_work);
> +
>  	/*
>  	 * In theory we don't need the encoder->type check,
>  	 * but leave it just in case we have some really bad VBTs...
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 96a3183675bee..b4d5424cf95cf 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1817,6 +1817,8 @@ struct intel_digital_port {
>  
>  	struct intel_tc_port *tc;
>  
> +	struct delayed_work reset_link_work;
> +
>  	/* protects num_hdcp_streams reference count, hdcp_port_data and hdcp_auth_status */
>  	struct mutex hdcp_mutex;
>  	/* the number of pipes using HDCP signalling out of this port */
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 7a349cb9fc2e6..e7e4266b314a7 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -70,6 +70,7 @@
>  #include "intel_hotplug.h"
>  #include "intel_lspcon.h"
>  #include "intel_lvds.h"
> +#include "intel_modeset_lock.h"
>  #include "intel_panel.h"
>  #include "intel_pch_display.h"
>  #include "intel_pps.h"
> @@ -4258,6 +4259,64 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
>  	return 0;
>  }
>  
> +int intel_dp_reset_link(struct intel_encoder *encoder)
> +{
> +	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> +	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> +	struct drm_modeset_acquire_ctx ctx;
> +	struct drm_atomic_state *_state;
> +	struct intel_atomic_state *state;
> +	int ret = 0;
> +
> +	_state = drm_atomic_state_alloc(&i915->drm);
> +	if (!_state)
> +		return -ENOMEM;
> +
> +	state = to_intel_atomic_state(_state);
> +
> +	intel_modeset_lock_ctx_retry(&ctx, state, 0, ret) {
> +		struct intel_crtc *crtc;
> +		u8 pipe_mask;
> +
> +		ret = drm_modeset_lock(&i915->drm.mode_config.connection_mutex, &ctx);
> +		if (ret)
> +			continue;
> +
> +		ret = intel_dp_get_active_pipes(enc_to_intel_dp(encoder), &ctx, &pipe_mask);
> +		if (ret)
> +			continue;
> +
> +		if (!pipe_mask)
> +			continue;
> +
> +		state->internal = true;

Can be set immediately after the state is allocated, which is what 
everyone else does.

> +
> +		for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, pipe_mask) {
> +			struct intel_crtc_state *crtc_state;
> +
> +			crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
> +			if (IS_ERR(crtc_state)) {
> +				ret = PTR_ERR(crtc_state);
> +				break;
> +			}
> +
> +			crtc_state->uapi.connectors_changed = true;
> +		}
> +
> +		if (ret)
> +			continue;
> +
> +		if (!intel_tc_port_link_needs_reset(dig_port))
> +			continue;
> +
> +		ret = drm_atomic_commit(&state->base);
> +	}
> +
> +	drm_atomic_state_put(&state->base);
> +
> +	return ret;
> +}
> +
>  static int intel_dp_prep_phy_test(struct intel_dp *intel_dp,
>  				  struct drm_modeset_acquire_ctx *ctx,
>  				  u8 *pipe_mask)
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index ca12a1733df6f..05a8bda8513ee 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -45,6 +45,7 @@ int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
>  bool intel_dp_is_connected(struct intel_dp *intel_dp);
>  int intel_dp_retrain_link(struct intel_encoder *encoder,
>  			  struct drm_modeset_acquire_ctx *ctx);
> +int intel_dp_reset_link(struct intel_encoder *encoder);
>  void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
>  void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
>  					   const struct intel_crtc_state *crtc_state);
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index 1e10580e5ab31..311249a65f8fb 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -26,6 +26,7 @@
>  #include "intel_fifo_underrun.h"
>  #include "intel_modeset_setup.h"
>  #include "intel_pch_display.h"
> +#include "intel_tc.h"
>  #include "intel_vblank.h"
>  #include "intel_wm.h"
>  #include "skl_watermark.h"
> @@ -368,17 +369,6 @@ intel_sanitize_plane_mapping(struct drm_i915_private *i915)
>  	}
>  }
>  
> -static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
> -{
> -	struct drm_device *dev = crtc->base.dev;
> -	struct intel_encoder *encoder;
> -
> -	for_each_encoder_on_crtc(dev, &crtc->base, encoder)
> -		return true;
> -
> -	return false;
> -}

Not really seeing why this is removed.

> -
>  static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder)
>  {
>  	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> @@ -421,11 +411,14 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state
>  					   !HAS_GMCH(i915));
>  }
>  
> -static void intel_sanitize_crtc(struct intel_crtc *crtc,
> +static bool intel_sanitize_crtc(struct intel_crtc *crtc,
>  				struct drm_modeset_acquire_ctx *ctx)
>  {
>  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  	struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
> +	struct intel_encoder *encoder;
> +	bool needs_link_reset = false;
> +	bool has_encoder = false;
>  
>  	if (crtc_state->hw.active) {
>  		struct intel_plane *plane;
> @@ -445,13 +438,67 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
>  		intel_color_commit_arm(crtc_state);
>  	}
>  
> +	if (!crtc_state->hw.active ||
> +	    intel_crtc_is_bigjoiner_slave(crtc_state))
> +		return false;
> +
> +	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
> +		struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> +
> +		has_encoder = true;
> +
> +		if (!dig_port || !intel_tc_port_link_needs_reset(dig_port))
> +			continue;
> +
> +		needs_link_reset = true;
> +		break;
> +	}

Hmm. I guess you wanted to combine the loops. Feels like a
rather pointless micro-optimizaiton. So containing this stuff
into sepraate function(s) could be more readable. Although the
fact that you need the needs_link_reset check after the disable 
means you still need at least one boolean variable.

> +
>  	/*
>  	 * Adjust the state of the output pipe according to whether we have
>  	 * active connectors/encoders.
>  	 */
> -	if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) &&
> -	    !intel_crtc_is_bigjoiner_slave(crtc_state))
> +	if (!has_encoder || needs_link_reset)
>  		intel_crtc_disable_noatomic(crtc, ctx);
> +
> +	/*
> +	 * An active and disconnected TypeC port prevents the HPD live state
> +	 * to get updated on other active/disconnected TypeC ports, so after
> +	 * a port gets disabled the CRTCs using other TypeC ports must be
> +	 * rechecked wrt. their link status. After the port is disabled the
> +	 * HPD state on other ports will get updated in ~10ms, so also wait
> +	 * here for that.
> +	 */
> +	if (needs_link_reset) {
> +		usleep_range(50000, 100000);
> +
> +		return true;
> +	}
> +
> +	return false;
> +}
> +
> +static void intel_sanitize_all_crtcs(struct drm_i915_private *i915,
> +				     struct drm_modeset_acquire_ctx *ctx)
> +{
> +	int restart_count;
> +
> +	for (restart_count = 0; restart_count < I915_MAX_PIPES; restart_count++) {
> +		struct intel_crtc *crtc;
> +		bool restart = false;
> +
> +		for_each_intel_crtc(&i915->drm, crtc) {
> +			struct intel_crtc_state *crtc_state =
> +				to_intel_crtc_state(crtc->base.state);
> +
> +			restart = restart || intel_sanitize_crtc(crtc, ctx);
> +			intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");

So this will dump the state for all imtermediate/final states but not
necessarily the initial state? I think we should either just dump the
final states (which was the case previously), or perhaps dump both the
initial and final states but not any intermediate stuff.

Also this whole restart_count loop is confusing me. I presume it's just
trying to make sure we don't disable the same crtc multiple times or
something? Seems a bit unlikely to me that we'd screw things up so
badly, so maybe just rid of it, or maybe just use a bitmask or something
to track the progress?

> +		}
> +
> +		if (!restart)
> +			break;
> +	}
> +	drm_WARN_ON(&i915->drm, restart_count == I915_MAX_PIPES);
>  }
>  
>  static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
> @@ -871,13 +918,7 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
>  	 */
>  	intel_modeset_update_connector_atomic_state(i915);
>  
> -	for_each_intel_crtc(&i915->drm, crtc) {
> -		struct intel_crtc_state *crtc_state =
> -			to_intel_crtc_state(crtc->base.state);
> -
> -		intel_sanitize_crtc(crtc, ctx);
> -		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
> -	}
> +	intel_sanitize_all_crtcs(i915, ctx);
>  
>  	intel_dpll_sanitize_state(i915);
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
> index 4fca711a58bce..8b7f57701c257 100644
> --- a/drivers/gpu/drm/i915/display/intel_tc.c
> +++ b/drivers/gpu/drm/i915/display/intel_tc.c
> @@ -1572,6 +1572,27 @@ bool intel_tc_port_connected(struct intel_encoder *encoder)
>  	return is_connected;
>  }
>  
> +bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
> +	struct intel_tc_port *tc = to_tc_port(dig_port);
> +	bool ret;
> +
> +	if (!intel_phy_is_tc(i915, phy))
> +		return false;
> +
> +	mutex_lock(&tc->lock);
> +
> +	ret = tc->link_refcount &&
> +	      intel_tc_port_in_dp_alt_mode(dig_port) &&
> +	      intel_tc_port_needs_reset(tc);
> +
> +	mutex_unlock(&tc->lock);
> +
> +	return ret;
> +}
> +
>  static void __intel_tc_port_lock(struct intel_tc_port *tc,
>  				 int required_lanes)
>  {
> @@ -1660,6 +1681,14 @@ void intel_tc_port_put_link(struct intel_digital_port *dig_port)
>  	intel_tc_port_lock(dig_port);
>  	__intel_tc_port_put_link(tc);
>  	intel_tc_port_unlock(dig_port);
> +
> +	/*
> +	 * The firmware will not update the HPD status of other TypeC ports
> +	 * that are active in DP-alt mode with their sink disconnected, until
> +	 * this port is disabled and its PHY gets disconnected. Make sure this
> +	 * happens in a timely manner by disconnecting the PHY synchronously.
> +	 */
> +	intel_tc_port_flush_work(dig_port);
>  }
>  
>  int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
> diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
> index dd0810f9ea95e..c4cf1eac54a1c 100644
> --- a/drivers/gpu/drm/i915/display/intel_tc.h
> +++ b/drivers/gpu/drm/i915/display/intel_tc.h
> @@ -34,6 +34,7 @@ void intel_tc_port_flush_work(struct intel_digital_port *dig_port);
>  void intel_tc_port_get_link(struct intel_digital_port *dig_port,
>  			    int required_lanes);
>  void intel_tc_port_put_link(struct intel_digital_port *dig_port);
> +bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port);
>  bool intel_tc_port_ref_held(struct intel_digital_port *dig_port);
>  
>  int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v2 12/12] drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects

[Imre Deak]

On Thu, May 04, 2023 at 08:41:49PM +0300, Ville Syrjälä wrote:
> On Thu, May 04, 2023 at 02:10:48AM +0300, Imre Deak wrote:
> > If the output on a DP-alt link with its sink disconnected is kept
> > enabled for too long (about 20 sec), then some IOM/TCSS firmware timeout
> > will cause havoc on the PCI bus, at least for other GFX devices on it
> > which will stop powering up. Since user space is not guaranteed to do a
> > disabling modeset in time, switch such disconnected but active links to
> > TBT mode - which is without such shortcomings - with a 2 second delay.
> > 
> > If the above condition is detected already during the driver load/system
> > resume sanitization step disable the output instead, as at that point no
> > user space or kernel client depends on a consistent output state yet and
> > because subsequent atomic modeset on such connectors - without the
> > actual sink capabilities available - can fail.
> > 
> > An active/disconnected port as above will also block the HPD status of
> > other active/disconnected ports to get updated (stuck in the connected
> > state), until the former port is disabled, its PHY is disconnected and
> > a ~10 ms delay has elapsed. This means the link state for all TypeC
> > ports/CRTCs must be rechecked after a CRTC is disabled due to the above
> > reason. For this disconnect the PHY synchronously after the CRTC/port is
> > disabled and recheck all CRTCs for the above condition whenever such a
> > port is disabled.
> > 
> > To account for a race condition during driver loading where the sink is
> > disconnected after the above sanitization step and before the HPD
> > interrupts get enabled, do an explicit check/link reset if needed from
> > the encoder's late_register hook, which is called after the HPD
> > interrupts are enabled already.
> > 
> > v2:
> > - Handle an active/disconnected port blocking the HPD state update of
> >   another active/disconnected port.
> > - Cancel the delayed work resetting the link also from the encoder
> >   enable/suspend/shutdown hooks.
> > - Rebase on the earlier intel_modeset_lock_ctx_retry() addition,
> >   fixing here the missed atomic state reset in case of a retry.
> > - Fix handling of an error return from intel_atomic_get_crtc_state().
> > - Recheck if the port needs to be reset after all the atomic state
> >   is locked and async commits are waited on.
> > 
> > Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
> > Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> > Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_ddi.c      | 68 +++++++++++++--
> >  .../drm/i915/display/intel_display_types.h    |  2 +
> >  drivers/gpu/drm/i915/display/intel_dp.c       | 59 +++++++++++++
> >  drivers/gpu/drm/i915/display/intel_dp.h       |  1 +
> >  .../drm/i915/display/intel_modeset_setup.c    | 83 ++++++++++++++-----
> >  drivers/gpu/drm/i915/display/intel_tc.c       | 29 +++++++
> >  drivers/gpu/drm/i915/display/intel_tc.h       |  1 +
> >  7 files changed, 215 insertions(+), 28 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> > index eb391fff0f1be..db390b9c824ec 100644
> > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > @@ -3313,6 +3313,8 @@ static void intel_disable_ddi(struct intel_atomic_state *state,
> >  			      const struct intel_crtc_state *old_crtc_state,
> >  			      const struct drm_connector_state *old_conn_state)
> >  {
> > +	cancel_delayed_work(&enc_to_dig_port(encoder)->reset_link_work);
> > +
> >  	intel_hdcp_disable(to_intel_connector(old_conn_state->connector));
> >  
> >  	if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
> > @@ -3381,6 +3383,8 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
> >  	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
> >  	bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
> >  
> > +	cancel_delayed_work(&dig_port->reset_link_work);
> > +
> >  	if (is_tc_port) {
> >  		struct intel_crtc *master_crtc =
> >  			to_intel_crtc(crtc_state->uapi.crtc);
> > @@ -4229,9 +4233,53 @@ static void intel_ddi_encoder_reset(struct drm_encoder *encoder)
> >  		intel_tc_port_init_mode(dig_port);
> >  }
> >  
> > +static void intel_ddi_tc_port_reset_link_work(struct work_struct *work)
> > +{
> > +	struct intel_digital_port *dig_port =
> > +		container_of(work, struct intel_digital_port, reset_link_work.work);
> > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > +	struct intel_encoder *encoder = &dig_port->base;
> > +
> > +	mutex_lock(&i915->drm.mode_config.mutex);
> > +
> > +	if (intel_tc_port_link_needs_reset(dig_port)) {
> > +		int ret;
> > +
> > +		drm_dbg_kms(&i915->drm,
> > +			    "[ENCODER:%d:%s] TypeC DP-alt sink disconnected, resetting link\n",
> > +			    encoder->base.base.id, encoder->base.name);
> > +		ret = intel_dp_reset_link(encoder);
> > +		drm_WARN_ON(&i915->drm, ret);
> > +	}
> > +
> > +	mutex_unlock(&i915->drm.mode_config.mutex);
> > +}
> > +
> > +static bool intel_ddi_tc_port_reset_link(struct intel_encoder *encoder)
> > +{
> > +	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> > +
> > +	if (!intel_tc_port_link_needs_reset(dig_port))
> > +		return false;
> > +
> > +	queue_delayed_work(system_unbound_wq, &dig_port->reset_link_work, msecs_to_jiffies(2000));
> > +
> > +	return true;
> > +}
> > +
> > +static int intel_ddi_encoder_late_register(struct drm_encoder *_encoder)
> > +{
> > +	struct intel_encoder *encoder = to_intel_encoder(_encoder);
> > +
> > +	intel_ddi_tc_port_reset_link(encoder);
> > +
> > +	return 0;
> > +}
> > +
> >  static const struct drm_encoder_funcs intel_ddi_funcs = {
> >  	.reset = intel_ddi_encoder_reset,
> >  	.destroy = intel_ddi_encoder_destroy,
> > +	.late_register = intel_ddi_encoder_late_register,
> >  };
> >  
> >  static struct intel_connector *
> > @@ -4401,14 +4449,16 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
> >  
> >  	state = intel_encoder_hotplug(encoder, connector);
> >  
> > -	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
> > -		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
> > -			ret = intel_hdmi_reset_link(encoder, &ctx);
> > -		else
> > -			ret = intel_dp_retrain_link(encoder, &ctx);
> > -	}
> > +	if (!intel_ddi_tc_port_reset_link(encoder)) {
> > +		intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
> > +			if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
> > +				ret = intel_hdmi_reset_link(encoder, &ctx);
> > +			else
> > +				ret = intel_dp_retrain_link(encoder, &ctx);
> > +		}
> >  
> > -	drm_WARN_ON(encoder->base.dev, ret);
> > +		drm_WARN_ON(encoder->base.dev, ret);
> > +	}
> >  
> >  	/*
> >  	 * Unpowered type-c dongles can take some time to boot and be
> > @@ -4624,6 +4674,7 @@ static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
> >  	if (!intel_phy_is_tc(i915, phy))
> >  		return;
> >  
> > +	cancel_delayed_work(&dig_port->reset_link_work);
> >  	intel_tc_port_flush_work(dig_port);
> >  }
> >  
> > @@ -4640,6 +4691,7 @@ static void intel_ddi_encoder_shutdown(struct intel_encoder *encoder)
> >  	if (!intel_phy_is_tc(i915, phy))
> >  		return;
> >  
> > +	cancel_delayed_work(&dig_port->reset_link_work);
> >  	intel_tc_port_cleanup(dig_port);
> >  }
> >  
> > @@ -4945,6 +4997,8 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
> >  			encoder->pipe_mask = intel_ddi_splitter_pipe_mask(dev_priv);
> >  	}
> >  
> > +	INIT_DELAYED_WORK(&dig_port->reset_link_work, intel_ddi_tc_port_reset_link_work);
> > +
> >  	/*
> >  	 * In theory we don't need the encoder->type check,
> >  	 * but leave it just in case we have some really bad VBTs...
> > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> > index 96a3183675bee..b4d5424cf95cf 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> > @@ -1817,6 +1817,8 @@ struct intel_digital_port {
> >  
> >  	struct intel_tc_port *tc;
> >  
> > +	struct delayed_work reset_link_work;
> > +
> >  	/* protects num_hdcp_streams reference count, hdcp_port_data and hdcp_auth_status */
> >  	struct mutex hdcp_mutex;
> >  	/* the number of pipes using HDCP signalling out of this port */
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> > index 7a349cb9fc2e6..e7e4266b314a7 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> > @@ -70,6 +70,7 @@
> >  #include "intel_hotplug.h"
> >  #include "intel_lspcon.h"
> >  #include "intel_lvds.h"
> > +#include "intel_modeset_lock.h"
> >  #include "intel_panel.h"
> >  #include "intel_pch_display.h"
> >  #include "intel_pps.h"
> > @@ -4258,6 +4259,64 @@ int intel_dp_retrain_link(struct intel_encoder *encoder,
> >  	return 0;
> >  }
> >  
> > +int intel_dp_reset_link(struct intel_encoder *encoder)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> > +	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> > +	struct drm_modeset_acquire_ctx ctx;
> > +	struct drm_atomic_state *_state;
> > +	struct intel_atomic_state *state;
> > +	int ret = 0;
> > +
> > +	_state = drm_atomic_state_alloc(&i915->drm);
> > +	if (!_state)
> > +		return -ENOMEM;
> > +
> > +	state = to_intel_atomic_state(_state);
> > +
> > +	intel_modeset_lock_ctx_retry(&ctx, state, 0, ret) {
> > +		struct intel_crtc *crtc;
> > +		u8 pipe_mask;
> > +
> > +		ret = drm_modeset_lock(&i915->drm.mode_config.connection_mutex, &ctx);
> > +		if (ret)
> > +			continue;
> > +
> > +		ret = intel_dp_get_active_pipes(enc_to_intel_dp(encoder), &ctx, &pipe_mask);
> > +		if (ret)
> > +			continue;
> > +
> > +		if (!pipe_mask)
> > +			continue;
> > +
> > +		state->internal = true;
> 
> Can be set immediately after the state is allocated, which is what 
> everyone else does.

Ok, will move it there.

> > +
> > +		for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, pipe_mask) {
> > +			struct intel_crtc_state *crtc_state;
> > +
> > +			crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
> > +			if (IS_ERR(crtc_state)) {
> > +				ret = PTR_ERR(crtc_state);
> > +				break;
> > +			}
> > +
> > +			crtc_state->uapi.connectors_changed = true;
> > +		}
> > +
> > +		if (ret)
> > +			continue;
> > +
> > +		if (!intel_tc_port_link_needs_reset(dig_port))
> > +			continue;
> > +
> > +		ret = drm_atomic_commit(&state->base);
> > +	}
> > +
> > +	drm_atomic_state_put(&state->base);
> > +
> > +	return ret;
> > +}
> > +
> >  static int intel_dp_prep_phy_test(struct intel_dp *intel_dp,
> >  				  struct drm_modeset_acquire_ctx *ctx,
> >  				  u8 *pipe_mask)
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> > index ca12a1733df6f..05a8bda8513ee 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.h
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> > @@ -45,6 +45,7 @@ int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
> >  bool intel_dp_is_connected(struct intel_dp *intel_dp);
> >  int intel_dp_retrain_link(struct intel_encoder *encoder,
> >  			  struct drm_modeset_acquire_ctx *ctx);
> > +int intel_dp_reset_link(struct intel_encoder *encoder);
> >  void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
> >  void intel_dp_configure_protocol_converter(struct intel_dp *intel_dp,
> >  					   const struct intel_crtc_state *crtc_state);
> > diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > index 1e10580e5ab31..311249a65f8fb 100644
> > --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > @@ -26,6 +26,7 @@
> >  #include "intel_fifo_underrun.h"
> >  #include "intel_modeset_setup.h"
> >  #include "intel_pch_display.h"
> > +#include "intel_tc.h"
> >  #include "intel_vblank.h"
> >  #include "intel_wm.h"
> >  #include "skl_watermark.h"
> > @@ -368,17 +369,6 @@ intel_sanitize_plane_mapping(struct drm_i915_private *i915)
> >  	}
> >  }
> >  
> > -static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
> > -{
> > -	struct drm_device *dev = crtc->base.dev;
> > -	struct intel_encoder *encoder;
> > -
> > -	for_each_encoder_on_crtc(dev, &crtc->base, encoder)
> > -		return true;
> > -
> > -	return false;
> > -}
> 
> Not really seeing why this is removed.
> 
> > -
> >  static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder)
> >  {
> >  	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> > @@ -421,11 +411,14 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state
> >  					   !HAS_GMCH(i915));
> >  }
> >  
> > -static void intel_sanitize_crtc(struct intel_crtc *crtc,
> > +static bool intel_sanitize_crtc(struct intel_crtc *crtc,
> >  				struct drm_modeset_acquire_ctx *ctx)
> >  {
> >  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> >  	struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
> > +	struct intel_encoder *encoder;
> > +	bool needs_link_reset = false;
> > +	bool has_encoder = false;
> >  
> >  	if (crtc_state->hw.active) {
> >  		struct intel_plane *plane;
> > @@ -445,13 +438,67 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
> >  		intel_color_commit_arm(crtc_state);
> >  	}
> >  
> > +	if (!crtc_state->hw.active ||
> > +	    intel_crtc_is_bigjoiner_slave(crtc_state))
> > +		return false;
> > +
> > +	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
> > +		struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> > +
> > +		has_encoder = true;
> > +
> > +		if (!dig_port || !intel_tc_port_link_needs_reset(dig_port))
> > +			continue;
> > +
> > +		needs_link_reset = true;
> > +		break;
> > +	}
> 
> Hmm. I guess you wanted to combine the loops. Feels like a
> rather pointless micro-optimizaiton. So containing this stuff
> into sepraate function(s) could be more readable. Although the
> fact that you need the needs_link_reset check after the disable 
> means you still need at least one boolean variable.

Yes, just to iterate the encoders only once, but having separate
functions makes this more readable, will do that.

> 
> > +
> >  	/*
> >  	 * Adjust the state of the output pipe according to whether we have
> >  	 * active connectors/encoders.
> >  	 */
> > -	if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) &&
> > -	    !intel_crtc_is_bigjoiner_slave(crtc_state))
> > +	if (!has_encoder || needs_link_reset)
> >  		intel_crtc_disable_noatomic(crtc, ctx);
> > +
> > +	/*
> > +	 * An active and disconnected TypeC port prevents the HPD live state
> > +	 * to get updated on other active/disconnected TypeC ports, so after
> > +	 * a port gets disabled the CRTCs using other TypeC ports must be
> > +	 * rechecked wrt. their link status. After the port is disabled the
> > +	 * HPD state on other ports will get updated in ~10ms, so also wait
> > +	 * here for that.
> > +	 */
> > +	if (needs_link_reset) {
> > +		usleep_range(50000, 100000);

I realized this slack is more than required, will reduce it to max 30ms.

> > +
> > +		return true;
> > +	}
> > +
> > +	return false;
> > +}
> > +
> > +static void intel_sanitize_all_crtcs(struct drm_i915_private *i915,
> > +				     struct drm_modeset_acquire_ctx *ctx)
> > +{
> > +	int restart_count;
> > +
> > +	for (restart_count = 0; restart_count < I915_MAX_PIPES; restart_count++) {
> > +		struct intel_crtc *crtc;
> > +		bool restart = false;
> > +
> > +		for_each_intel_crtc(&i915->drm, crtc) {
> > +			struct intel_crtc_state *crtc_state =
> > +				to_intel_crtc_state(crtc->base.state);
> > +
> > +			restart = restart || intel_sanitize_crtc(crtc, ctx);
> > +			intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
> 
> So this will dump the state for all imtermediate/final states but not
> necessarily the initial state? I think we should either just dump the
> final states (which was the case previously), or perhaps dump both the
> initial and final states but not any intermediate stuff.

I meant to keep state dumping as-is from the final state, but botched
it, will fix this.

> Also this whole restart_count loop is confusing me. I presume it's just
> trying to make sure we don't disable the same crtc multiple times or
> something?

Yes, just to prevent an endless loop due to some bug.

> Seems a bit unlikely to me that we'd screw things up so badly, so
> maybe just rid of it, or maybe just use a bitmask or something to
> track the progress?

Ok, tracking which crtcs got disabled makes it clearer, can do that.

> 
> > +		}
> > +
> > +		if (!restart)
> > +			break;
> > +	}
> > +	drm_WARN_ON(&i915->drm, restart_count == I915_MAX_PIPES);
> >  }
> >  
> >  static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
> > @@ -871,13 +918,7 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
> >  	 */
> >  	intel_modeset_update_connector_atomic_state(i915);
> >  
> > -	for_each_intel_crtc(&i915->drm, crtc) {
> > -		struct intel_crtc_state *crtc_state =
> > -			to_intel_crtc_state(crtc->base.state);
> > -
> > -		intel_sanitize_crtc(crtc, ctx);
> > -		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
> > -	}
> > +	intel_sanitize_all_crtcs(i915, ctx);
> >  
> >  	intel_dpll_sanitize_state(i915);
> >  
> > diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
> > index 4fca711a58bce..8b7f57701c257 100644
> > --- a/drivers/gpu/drm/i915/display/intel_tc.c
> > +++ b/drivers/gpu/drm/i915/display/intel_tc.c
> > @@ -1572,6 +1572,27 @@ bool intel_tc_port_connected(struct intel_encoder *encoder)
> >  	return is_connected;
> >  }
> >  
> > +bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> > +	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
> > +	struct intel_tc_port *tc = to_tc_port(dig_port);
> > +	bool ret;
> > +
> > +	if (!intel_phy_is_tc(i915, phy))
> > +		return false;
> > +
> > +	mutex_lock(&tc->lock);
> > +
> > +	ret = tc->link_refcount &&
> > +	      intel_tc_port_in_dp_alt_mode(dig_port) &&
> > +	      intel_tc_port_needs_reset(tc);
> > +
> > +	mutex_unlock(&tc->lock);
> > +
> > +	return ret;
> > +}
> > +
> >  static void __intel_tc_port_lock(struct intel_tc_port *tc,
> >  				 int required_lanes)
> >  {
> > @@ -1660,6 +1681,14 @@ void intel_tc_port_put_link(struct intel_digital_port *dig_port)
> >  	intel_tc_port_lock(dig_port);
> >  	__intel_tc_port_put_link(tc);
> >  	intel_tc_port_unlock(dig_port);
> > +
> > +	/*
> > +	 * The firmware will not update the HPD status of other TypeC ports
> > +	 * that are active in DP-alt mode with their sink disconnected, until
> > +	 * this port is disabled and its PHY gets disconnected. Make sure this
> > +	 * happens in a timely manner by disconnecting the PHY synchronously.
> > +	 */
> > +	intel_tc_port_flush_work(dig_port);
> >  }
> >  
> >  int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
> > diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
> > index dd0810f9ea95e..c4cf1eac54a1c 100644
> > --- a/drivers/gpu/drm/i915/display/intel_tc.h
> > +++ b/drivers/gpu/drm/i915/display/intel_tc.h
> > @@ -34,6 +34,7 @@ void intel_tc_port_flush_work(struct intel_digital_port *dig_port);
> >  void intel_tc_port_get_link(struct intel_digital_port *dig_port,
> >  			    int required_lanes);
> >  void intel_tc_port_put_link(struct intel_digital_port *dig_port);
> > +bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port);
> >  bool intel_tc_port_ref_held(struct intel_digital_port *dig_port);
> >  
> >  int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
> > -- 
> > 2.37.2
> 
> -- 
> Ville Syrjälä
> Intel

Re: [Intel-gfx] [PATCH v2 06/12] drm/i915: Add support for disabling any CRTCs during HW readout/sanitization

[Imre Deak]

On Thu, May 04, 2023 at 08:15:01PM +0300, Ville Syrjälä wrote:
> On Thu, May 04, 2023 at 02:10:42AM +0300, Imre Deak wrote:
> > During HW readout/sanitization CRTCs can be disabled only if they don't
> > have an attached encoder (and so the encoder disable hooks don't need to
> > be called). An upcoming patch will need to disable CRTCs also with an
> > attached an encoder, so add support for this.
> > 
> > For bigjoiner configs the encoder disabling hooks require the slave CRTC
> > states, so add these too to the atomic state. Since the connector atomic
> > state is already up-to-date when the CRTC is disabled the connector
> > state needs to be updated (reset) after the CRTC is disabled, make this
> > so. Follow the proper order of disabling first all bigjoiner slaves,
> > then any port synced CRTC slaves followed by the CRTC originally
> > requested to be disabled.
> > 
> > v2:
> > - Fix calculating the bigjoiner_masters mask in a port sync config,
> >   (Ville)
> > - Keep _noatomic suffix in intel_crtc_disable_noatomic(). (Ville)
> > - Rebase on full CRTC state reset in this patchset, not requiring
> >   resetting the bigjoiner state separately and (instead) resetting
> >   the full atomic CRTC and related global state after all linked
> >   pipes got disabled.
> > - Disable portsync slaves before a portsync master.
> > - Disable a portsync master if a linked portsync slave is disabled.
> > 
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
> >  drivers/gpu/drm/i915/display/intel_display.h  |   1 +
> >  .../drm/i915/display/intel_modeset_setup.c    | 159 ++++++++++++++++--
> >  3 files changed, 151 insertions(+), 11 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> > index ca95cf6764c04..f567c6bbc2a05 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -225,7 +225,7 @@ is_trans_port_sync_slave(const struct intel_crtc_state *crtc_state)
> >  	return crtc_state->master_transcoder != INVALID_TRANSCODER;
> >  }
> >  
> > -static bool
> > +bool
> >  is_trans_port_sync_master(const struct intel_crtc_state *crtc_state)
> >  {
> >  	return crtc_state->sync_mode_slaves_mask != 0;
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
> > index ac95961f68ba7..3ecc5649a73ab 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.h
> > +++ b/drivers/gpu/drm/i915/display/intel_display.h
> > @@ -407,6 +407,7 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
> >  				bool bigjoiner);
> >  enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port);
> >  bool is_trans_port_sync_mode(const struct intel_crtc_state *state);
> > +bool is_trans_port_sync_master(const struct intel_crtc_state *state);
> >  bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state);
> >  bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state);
> >  u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state);
> > diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > index 9848d20582963..1e10580e5ab31 100644
> > --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > @@ -38,9 +38,8 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
> >  		to_intel_crtc_state(crtc->base.state);
> >  	struct intel_plane *plane;
> >  	struct drm_atomic_state *state;
> > -	struct intel_crtc_state *temp_crtc_state;
> > +	struct intel_crtc *temp_crtc;
> >  	enum pipe pipe = crtc->pipe;
> > -	int ret;
> >  
> >  	if (!crtc_state->hw.active)
> >  		return;
> > @@ -65,10 +64,17 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
> >  	to_intel_atomic_state(state)->internal = true;
> >  
> >  	/* Everything's already locked, -EDEADLK can't happen. */
> > -	temp_crtc_state = intel_atomic_get_crtc_state(state, crtc);
> > -	ret = drm_atomic_add_affected_connectors(state, &crtc->base);
> > +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
> > +					 BIT(pipe) |
> > +					 intel_crtc_bigjoiner_slave_pipes(crtc_state)) {
> > +		struct intel_crtc_state *temp_crtc_state =
> > +			intel_atomic_get_crtc_state(state, temp_crtc);
> > +		int ret;
> >  
> > -	drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
> > +		ret = drm_atomic_add_affected_connectors(state, &temp_crtc->base);
> > +
> > +		drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
> > +	}
> >  
> >  	i915->display.funcs.display->crtc_disable(to_intel_atomic_state(state), crtc);
> >  
> > @@ -105,9 +111,38 @@ static void set_encoder_for_connector(struct intel_connector *connector,
> >  	}
> >  }
> >  
> > -static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> > +static void reset_encoder_connector_state(struct intel_encoder *encoder)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> > +	struct intel_connector *connector;
> > +	struct drm_connector_list_iter conn_iter;
> > +
> > +	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
> > +	for_each_intel_connector_iter(connector, &conn_iter) {
> > +		if (connector->base.encoder != &encoder->base)
> > +			continue;
> > +
> > +		set_encoder_for_connector(connector, NULL);
> > +
> > +		connector->base.dpms = DRM_MODE_DPMS_OFF;
> > +		connector->base.encoder = NULL;
> > +	}
> > +	drm_connector_list_iter_end(&conn_iter);
> > +}
> > +
> > +static void reset_crtc_encoder_state(struct intel_crtc *crtc)
> >  {
> > +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> >  	struct intel_encoder *encoder;
> > +
> > +	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
> > +		reset_encoder_connector_state(encoder);
> > +		encoder->base.crtc = NULL;
> > +	}
> > +}
> > +
> > +static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> > +{
> >  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> >  	struct intel_bw_state *bw_state =
> >  		to_intel_bw_state(i915->display.bw.obj.state);
> > @@ -123,8 +158,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> >  	intel_crtc_free_hw_state(crtc_state);
> >  	intel_crtc_state_reset(crtc_state, crtc);
> >  
> > -	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
> > -		encoder->base.crtc = NULL;
> > +	reset_crtc_encoder_state(crtc);
> >  
> >  	intel_fbc_disable(crtc);
> >  	intel_update_watermarks(i915);
> > @@ -141,11 +175,116 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
> >  	bw_state->num_active_planes[pipe] = 0;
> >  }
> >  
> > +/*
> > + * Return all the pipes using a transcoder in @transcoder_mask.
> > + * For bigjoiner configs return only the bigjoiner master.
> > + */
> > +static u32 get_transcoder_pipes(struct drm_i915_private *i915,
> > +				u32 transcoder_mask)
> > +{
> > +	struct intel_crtc *temp_crtc;
> > +	u32 pipes = 0;
> 
> I think we generally use u8 for pipe/transcoder masks. Ditto elsewhere.

Yes, did that elsewhere, but got it wrong here, will fix it.

> 
> > +
> > +	for_each_intel_crtc(&i915->drm, temp_crtc) {
> > +		struct intel_crtc_state *temp_crtc_state =
> > +			to_intel_crtc_state(temp_crtc->base.state);
> > +
> > +		if (temp_crtc_state->cpu_transcoder == INVALID_TRANSCODER)
> > +			continue;
> > +
> > +		if (intel_crtc_is_bigjoiner_slave(temp_crtc_state))
> > +			continue;
> > +
> > +		if (transcoder_mask & BIT(temp_crtc_state->cpu_transcoder))
> > +			pipes |= BIT(temp_crtc->pipe);
> > +	}
> > +
> > +	return pipes;
> > +}
> > +
> > +/*
> > + * Return the port sync master and slave pipes linked to @crtc.
> > + * For bigjoiner configs return only the bigjoiner master pipes.
> > + */
> > +static void get_portsync_pipes(struct intel_crtc *crtc,
> > +			       u32 *master_pipe_mask, u32 *slave_pipes_mask)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> > +	struct intel_crtc_state *crtc_state =
> > +		to_intel_crtc_state(crtc->base.state);
> > +	struct intel_crtc *master_crtc;
> > +	struct intel_crtc_state *master_crtc_state;
> > +	enum transcoder master_transcoder;
> > +
> > +	if (!is_trans_port_sync_mode(crtc_state)) {
> > +		*master_pipe_mask = BIT(crtc->pipe);
> > +		*slave_pipes_mask = 0;
> > +
> > +		return;
> > +	}
> > +
> > +	if (is_trans_port_sync_master(crtc_state))
> > +		master_transcoder = crtc_state->cpu_transcoder;
> > +	else
> > +		master_transcoder = crtc_state->master_transcoder;
> > +
> > +	*master_pipe_mask = get_transcoder_pipes(i915, BIT(master_transcoder));
> > +	drm_WARN_ON(&i915->drm, hweight32(*master_pipe_mask) != 1);
> 
> or perhaps is_power_of_two(). Doesn't really matter I suppose.

I wonder if hweight better expresses what we check for, but
is_power_of_2() is enough, so can use that instead.

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

Thanks.

> 
> > +
> > +	master_crtc = intel_crtc_for_pipe(i915, ffs(*master_pipe_mask) - 1);
> > +	master_crtc_state = to_intel_crtc_state(master_crtc->base.state);
> > +	*slave_pipes_mask = get_transcoder_pipes(i915, master_crtc_state->sync_mode_slaves_mask);
> > +}
> > +
> > +static u32 get_bigjoiner_slave_pipes(struct drm_i915_private *i915, u32 master_pipes_mask)
> > +{
> > +	struct intel_crtc *master_crtc;
> > +	u32 pipes = 0;
> > +
> > +	for_each_intel_crtc_in_pipe_mask(&i915->drm, master_crtc, master_pipes_mask) {
> > +		struct intel_crtc_state *master_crtc_state =
> > +			to_intel_crtc_state(master_crtc->base.state);
> > +
> > +		pipes |= intel_crtc_bigjoiner_slave_pipes(master_crtc_state);
> > +	}
> > +
> > +	return pipes;
> > +}
> > +
> >  static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
> >  					struct drm_modeset_acquire_ctx *ctx)
> >  {
> > -	intel_crtc_disable_noatomic_begin(crtc, ctx);
> > -	intel_crtc_disable_noatomic_complete(crtc);
> > +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> > +	u32 portsync_master_mask;
> > +	u32 portsync_slaves_mask;
> > +	u32 bigjoiner_slaves_mask;
> > +	struct intel_crtc *temp_crtc;
> > +
> > +	/* TODO: Add support for MST */
> > +	get_portsync_pipes(crtc, &portsync_master_mask, &portsync_slaves_mask);
> > +	bigjoiner_slaves_mask = get_bigjoiner_slave_pipes(i915,
> > +							  portsync_master_mask |
> > +							  portsync_slaves_mask);
> > +
> > +	drm_WARN_ON(&i915->drm,
> > +		    portsync_master_mask & portsync_slaves_mask ||
> > +		    portsync_master_mask & bigjoiner_slaves_mask ||
> > +		    portsync_slaves_mask & bigjoiner_slaves_mask);
> > +
> > +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, bigjoiner_slaves_mask)
> > +		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
> > +
> > +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_slaves_mask)
> > +		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
> > +
> > +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_master_mask)
> > +		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
> > +
> > +	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
> > +					 bigjoiner_slaves_mask |
> > +					 portsync_slaves_mask |
> > +					 portsync_master_mask)
> > +		intel_crtc_disable_noatomic_complete(temp_crtc);
> >  }
> >  
> >  static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
> > -- 
> > 2.37.2
> 
> -- 
> Ville Syrjälä
> Intel

Re: [Intel-gfx] [PATCH v2 08/12] drm/i915/dp: Convert link training error to debug message on disconnected sink

[Govindapillai, Vinod]

On Thu, 2023-05-04 at 02:10 +0300, Imre Deak wrote:
> If a sink is disconnected it's expected that link training actions will
> fail on it, so downgrade the error messages about such actions to be a
> debug message. Such - expected - link training failures are more
> frequent after a follow up patch, after which an active TypeC link is
> reset after the sink is disconnected which also involves a link
> training.
> 
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c               |  2 +-
>  drivers/gpu/drm/i915/display/intel_dp.h               |  1 +
>  drivers/gpu/drm/i915/display/intel_dp_link_training.c | 11 +++++++++--
>  3 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 4361c1ac65c3a..1942a05719776 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -4179,7 +4179,7 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
>         return ret;
>  }
>  
> -static bool intel_dp_is_connected(struct intel_dp *intel_dp)
> +bool intel_dp_is_connected(struct intel_dp *intel_dp)
>  {
>         struct intel_connector *connector = intel_dp->attached_connector;
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index ef39e4f7a329e..488da392fafe5 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -42,6 +42,7 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
>                               int link_rate, int lane_count);
>  int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
>                                             int link_rate, u8 lane_count);
> +bool intel_dp_is_connected(struct intel_dp *intel_dp);
>  int intel_dp_retrain_link(struct intel_encoder *encoder,
>                           struct drm_modeset_acquire_ctx *ctx);
>  void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index f83944eaac128..2fe076e2d64b3 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -33,6 +33,7 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>         struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>         struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>         struct intel_connector *connector = intel_dp->attached_connector;
> +       const char *discon_str = "";
>         struct va_format vaf;
>         va_list args;
>  
> @@ -43,6 +44,11 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>         vaf.fmt = format;
>         vaf.va = &args;
>  
> +       if (is_error && !intel_dp_is_connected(intel_dp)) {
> +               discon_str = " (sink disconnected)";
> +               is_error = false;
> +       }
> +
Hi imre,

If the ignore long HPD env variable is set, in case of spurious HPDs we will ignore the long HPDs
and the connector status remains unchanged. So don't we need to downgrade the error messages to
debug messages if dev_priv->display.hotplug.ignore_long_hpd is set?

BR
vinod

>         if (is_error)
>                 drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
>                         connector->base.base.id, connector->base.name,
> @@ -50,11 +56,12 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>                         drm_dp_phy_name(dp_phy),
>                         &vaf);
>         else
> -               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> +               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV%s\n",
>                             connector->base.base.id, connector->base.name,
>                             encoder->base.base.id, encoder->base.name,
>                             drm_dp_phy_name(dp_phy),
> -                           &vaf);
> +                           &vaf,
> +                           discon_str);
>  }
>  
>  #define lt_err(intel_dp, dp_phy, format, ...) \

Re: [Intel-gfx] [PATCH v2 07/12] drm/i915/dp: Add link training debug and error printing helpers

[Jani Nikula]

On Thu, 04 May 2023, Ville Syrjälä <ville.syrjala@linux.intel.com> wrote:
> On Thu, May 04, 2023 at 02:10:43AM +0300, Imre Deak wrote:
>> Add functions for printing link training debug and error messages, both
>> to prepare for the next patch, which downgrades an error to a debug
>> message if the sink is disconnected and to remove some code duplication.
>> 
>> v2: (Ville)
>> - Always print the connector prefix.
>> - Preserve the drm_dbg_kms() debug category.
>> 
>> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
>> Signed-off-by: Imre Deak <imre.deak@intel.com>
>
> While I don't really like the custom debug infrastructure I can't
> immediately see any really better way to do this.

To avoid any confusion, NAK on this patch.

For one thing, I'm firmly in the same camp with the custom debug
wrappers. I hate it that gem/gt has started adding their own wrappers,
and as you add one as an example, it just expands from there. We now
have tons. I think it's enough that we have *drm* specific wrappers.

That said, I could've lived with this one, as it's limited to within a
file (though I know that can change all too quickly if we're not
vigilant).

The reason for rejecting this altogether is in the
implementation. Having an extra function in there makes the function
name debugging in __drm_dev_dbg() (where all this leads to after the
onion has been peeled) result in:

<7>[   35.817968] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Using LINK_BW_SET value 0a
<7>[   35.818535] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] 8b/10b, lanes: 2, vswing levels: 0/0/0/0, pre-emphasis levels: 0/0/0/0
<7>[   35.818685] i915 0000:00:02.0: [drm:hsw_set_signal_levels [i915]] Using signal levels 00000000
<7>[   35.818841] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Using DP training pattern TPS1
<7>[   35.819990] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Clock recovery OK
<7>[   35.820146] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Using DP training pattern TPS2
<7>[   35.821886] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Channel EQ done. DP Training successful
<7>[   35.822035] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Link Training passed at link rate = 270000, lane count = 2

And that's just useless.

I don't want it fixed with some __always_inline hack either.

Back to the drawing board, I'm afraid.


BR,
Jani.


>
> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
>> ---
>>  .../drm/i915/display/intel_dp_link_training.c | 387 +++++++-----------
>>  1 file changed, 140 insertions(+), 247 deletions(-)
>> 
>> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
>> index e92c62bcc9b85..f83944eaac128 100644
>> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
>> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
>> @@ -26,6 +26,43 @@
>>  #include "intel_dp.h"
>>  #include "intel_dp_link_training.h"
>>  
>> +__printf(4, 5)
>> +static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>> +		   bool is_error, const char *format, ...)
>> +{
>> +	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>> +	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> +	struct intel_connector *connector = intel_dp->attached_connector;
>> +	struct va_format vaf;
>> +	va_list args;
>> +
>> +	if (drm_WARN_ON(&i915->drm, !connector))
>> +		return;
>> +
>> +	va_start(args, format);
>> +	vaf.fmt = format;
>> +	vaf.va = &args;
>> +
>> +	if (is_error)
>> +		drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
>> +			connector->base.base.id, connector->base.name,
>> +			encoder->base.base.id, encoder->base.name,
>> +			drm_dp_phy_name(dp_phy),
>> +			&vaf);
>> +	else
>> +		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
>> +			    connector->base.base.id, connector->base.name,
>> +			    encoder->base.base.id, encoder->base.name,
>> +			    drm_dp_phy_name(dp_phy),
>> +			    &vaf);
>> +}
>> +
>> +#define lt_err(intel_dp, dp_phy, format, ...) \
>> +	lt_msg(intel_dp, dp_phy, true, format, ## __VA_ARGS__)
>> +
>> +#define lt_dbg(intel_dp, dp_phy, format, ...) \
>> +	lt_msg(intel_dp, dp_phy, false, format, ## __VA_ARGS__)
>> +
>>  static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
>>  {
>>  	memset(intel_dp->lttpr_common_caps, 0, sizeof(intel_dp->lttpr_common_caps));
>> @@ -47,29 +84,21 @@ static void intel_dp_read_lttpr_phy_caps(struct intel_dp *intel_dp,
>>  					 const u8 dpcd[DP_RECEIVER_CAP_SIZE],
>>  					 enum drm_dp_phy dp_phy)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>>  	u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy);
>>  
>>  	if (drm_dp_read_lttpr_phy_caps(&intel_dp->aux, dpcd, dp_phy, phy_caps) < 0) {
>> -		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
>> -			    "[ENCODER:%d:%s][%s] failed to read the PHY caps\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy));
>> +		lt_dbg(intel_dp, dp_phy, "failed to read the PHY caps\n");
>>  		return;
>>  	}
>>  
>> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
>> -		    "[ENCODER:%d:%s][%s] PHY capabilities: %*ph\n",
>> -		    encoder->base.base.id, encoder->base.name,
>> -		    drm_dp_phy_name(dp_phy),
>> -		    (int)sizeof(intel_dp->lttpr_phy_caps[0]),
>> -		    phy_caps);
>> +	lt_dbg(intel_dp, dp_phy, "PHY capabilities: %*ph\n",
>> +	       (int)sizeof(intel_dp->lttpr_phy_caps[0]),
>> +	       phy_caps);
>>  }
>>  
>>  static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
>>  					    const u8 dpcd[DP_RECEIVER_CAP_SIZE])
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>>  	int ret;
>>  
>>  	ret = drm_dp_read_lttpr_common_caps(&intel_dp->aux, dpcd,
>> @@ -77,11 +106,9 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
>>  	if (ret < 0)
>>  		goto reset_caps;
>>  
>> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
>> -		    "[ENCODER:%d:%s] LTTPR common capabilities: %*ph\n",
>> -		    encoder->base.base.id, encoder->base.name,
>> -		    (int)sizeof(intel_dp->lttpr_common_caps),
>> -		    intel_dp->lttpr_common_caps);
>> +	lt_dbg(intel_dp, DP_PHY_DPRX, "LTTPR common capabilities: %*ph\n",
>> +	       (int)sizeof(intel_dp->lttpr_common_caps),
>> +	       intel_dp->lttpr_common_caps);
>>  
>>  	/* The minimum value of LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV is 1.4 */
>>  	if (intel_dp->lttpr_common_caps[0] < 0x14)
>> @@ -105,8 +132,6 @@ intel_dp_set_lttpr_transparent_mode(struct intel_dp *intel_dp, bool enable)
>>  
>>  static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	int lttpr_count;
>>  	int i;
>>  
>> @@ -138,9 +163,8 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
>>  		return 0;
>>  
>>  	if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) {
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[ENCODER:%d:%s] Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n",
>> -			    encoder->base.base.id, encoder->base.name);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX,
>> +		       "Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n");
>>  
>>  		intel_dp_set_lttpr_transparent_mode(intel_dp, true);
>>  		intel_dp_reset_lttpr_count(intel_dp);
>> @@ -409,26 +433,22 @@ intel_dp_get_adjust_train(struct intel_dp *intel_dp,
>>  			  enum drm_dp_phy dp_phy,
>>  			  const u8 link_status[DP_LINK_STATUS_SIZE])
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	int lane;
>>  
>>  	if (intel_dp_is_uhbr(crtc_state)) {
>> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
>> -			    "TX FFE request: " TRAIN_REQ_FMT "\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy),
>> -			    crtc_state->lane_count,
>> -			    TRAIN_REQ_TX_FFE_ARGS(link_status));
>> +		lt_dbg(intel_dp, dp_phy,
>> +		       "128b/132b, lanes: %d, "
>> +		       "TX FFE request: " TRAIN_REQ_FMT "\n",
>> +		       crtc_state->lane_count,
>> +		       TRAIN_REQ_TX_FFE_ARGS(link_status));
>>  	} else {
>> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
>> -			    "vswing request: " TRAIN_REQ_FMT ", "
>> -			    "pre-emphasis request: " TRAIN_REQ_FMT "\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy),
>> -			    crtc_state->lane_count,
>> -			    TRAIN_REQ_VSWING_ARGS(link_status),
>> -			    TRAIN_REQ_PREEMPH_ARGS(link_status));
>> +		lt_dbg(intel_dp, dp_phy,
>> +		       "8b/10b, lanes: %d, "
>> +		       "vswing request: " TRAIN_REQ_FMT ", "
>> +		       "pre-emphasis request: " TRAIN_REQ_FMT "\n",
>> +		       crtc_state->lane_count,
>> +		       TRAIN_REQ_VSWING_ARGS(link_status),
>> +		       TRAIN_REQ_PREEMPH_ARGS(link_status));
>>  	}
>>  
>>  	for (lane = 0; lane < 4; lane++)
>> @@ -487,16 +507,11 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
>>  				       enum drm_dp_phy dp_phy,
>>  				       u8 dp_train_pat)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
>>  
>>  	if (train_pat != DP_TRAINING_PATTERN_DISABLE)
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[ENCODER:%d:%s][%s] Using DP training pattern TPS%c\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy),
>> -			    dp_training_pattern_name(train_pat));
>> +		lt_dbg(intel_dp, dp_phy, "Using DP training pattern TPS%c\n",
>> +		       dp_training_pattern_name(train_pat));
>>  
>>  	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
>>  }
>> @@ -531,24 +546,21 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
>>  				enum drm_dp_phy dp_phy)
>>  {
>>  	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  
>>  	if (intel_dp_is_uhbr(crtc_state)) {
>> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
>> -			    "TX FFE presets: " TRAIN_SET_FMT "\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy),
>> -			    crtc_state->lane_count,
>> -			    TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
>> +		lt_dbg(intel_dp, dp_phy,
>> +		       "128b/132b, lanes: %d, "
>> +		       "TX FFE presets: " TRAIN_SET_FMT "\n",
>> +		       crtc_state->lane_count,
>> +		       TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
>>  	} else {
>> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
>> -			    "vswing levels: " TRAIN_SET_FMT ", "
>> -			    "pre-emphasis levels: " TRAIN_SET_FMT "\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy),
>> -			    crtc_state->lane_count,
>> -			    TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
>> -			    TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
>> +		lt_dbg(intel_dp, dp_phy,
>> +		       "8b/10b, lanes: %d, "
>> +		       "vswing levels: " TRAIN_SET_FMT ", "
>> +		       "pre-emphasis levels: " TRAIN_SET_FMT "\n",
>> +		       crtc_state->lane_count,
>> +		       TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
>> +		       TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
>>  	}
>>  
>>  	if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy))
>> @@ -677,8 +689,6 @@ static bool
>>  intel_dp_prepare_link_train(struct intel_dp *intel_dp,
>>  			    const struct intel_crtc_state *crtc_state)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	u8 link_bw, rate_select;
>>  
>>  	if (intel_dp->prepare_link_retrain)
>> @@ -699,24 +709,21 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp,
>>  	 * link rates are not stable.
>>  	 */
>>  	if (!link_bw) {
>> -		struct intel_connector *connector = intel_dp->attached_connector;
>>  		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
>>  
>> -		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Reloading eDP link rates\n",
>> -			    connector->base.base.id, connector->base.name);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Reloading eDP link rates\n");
>>  
>>  		drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,
>>  				 sink_rates, sizeof(sink_rates));
>>  	}
>>  
>>  	if (link_bw)
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[ENCODER:%d:%s] Using LINK_BW_SET value %02x\n",
>> -			    encoder->base.base.id, encoder->base.name, link_bw);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Using LINK_BW_SET value %02x\n",
>> +		       link_bw);
>>  	else
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[ENCODER:%d:%s] Using LINK_RATE_SET value %02x\n",
>> -			    encoder->base.base.id, encoder->base.name, rate_select);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX,
>> +			    "Using LINK_RATE_SET value %02x\n",
>> +			    rate_select);
>>  	/*
>>  	 * Spec DP2.1 Section 3.5.2.16
>>  	 * Prior to LT DPTX should set 128b/132b DP Channel coding and then set link rate
>> @@ -758,15 +765,10 @@ void
>>  intel_dp_dump_link_status(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
>>  			  const u8 link_status[DP_LINK_STATUS_SIZE])
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>> -
>> -	drm_dbg_kms(&i915->drm,
>> -		    "[ENCODER:%d:%s][%s] ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
>> -		    encoder->base.base.id, encoder->base.name,
>> -		    drm_dp_phy_name(dp_phy),
>> -		    link_status[0], link_status[1], link_status[2],
>> -		    link_status[3], link_status[4], link_status[5]);
>> +	lt_dbg(intel_dp, dp_phy,
>> +	       "ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
>> +	       link_status[0], link_status[1], link_status[2],
>> +	       link_status[3], link_status[4], link_status[5]);
>>  }
>>  
>>  /*
>> @@ -778,8 +780,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>>  				      const struct intel_crtc_state *crtc_state,
>>  				      enum drm_dp_phy dp_phy)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	u8 old_link_status[DP_LINK_STATUS_SIZE] = {};
>>  	int voltage_tries, cr_tries, max_cr_tries;
>>  	u8 link_status[DP_LINK_STATUS_SIZE];
>> @@ -794,9 +794,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>>  	if (!intel_dp_reset_link_train(intel_dp, crtc_state, dp_phy,
>>  				       DP_TRAINING_PATTERN_1 |
>>  				       DP_LINK_SCRAMBLING_DISABLE)) {
>> -		drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to enable link training\n",
>> -			encoder->base.base.id, encoder->base.name,
>> -			drm_dp_phy_name(dp_phy));
>> +		lt_err(intel_dp, dp_phy, "Failed to enable link training\n");
>>  		return false;
>>  	}
>>  
>> @@ -819,35 +817,24 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>>  
>>  		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
>>  						     link_status) < 0) {
>> -			drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to get link status\n",
>> -				encoder->base.base.id, encoder->base.name,
>> -				drm_dp_phy_name(dp_phy));
>> +			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
>>  			return false;
>>  		}
>>  
>>  		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s][%s] Clock recovery OK\n",
>> -				    encoder->base.base.id, encoder->base.name,
>> -				    drm_dp_phy_name(dp_phy));
>> +			lt_dbg(intel_dp, dp_phy, "Clock recovery OK\n");
>>  			return true;
>>  		}
>>  
>>  		if (voltage_tries == 5) {
>>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s][%s] Same voltage tried 5 times\n",
>> -				    encoder->base.base.id, encoder->base.name,
>> -				    drm_dp_phy_name(dp_phy));
>> +			lt_dbg(intel_dp, dp_phy, "Same voltage tried 5 times\n");
>>  			return false;
>>  		}
>>  
>>  		if (max_vswing_reached) {
>>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s][%s] Max Voltage Swing reached\n",
>> -				    encoder->base.base.id, encoder->base.name,
>> -				    drm_dp_phy_name(dp_phy));
>> +			lt_dbg(intel_dp, dp_phy, "Max Voltage Swing reached\n");
>>  			return false;
>>  		}
>>  
>> @@ -855,10 +842,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>>  		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
>>  					  link_status);
>>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s][%s] Failed to update link training\n",
>> -				encoder->base.base.id, encoder->base.name,
>> -				drm_dp_phy_name(dp_phy));
>> +			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
>>  			return false;
>>  		}
>>  
>> @@ -874,10 +858,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
>>  	}
>>  
>>  	intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
>> -	drm_err(&i915->drm,
>> -		"[ENCODER:%d:%s][%s] Failed clock recovery %d times, giving up!\n",
>> -		encoder->base.base.id, encoder->base.name,
>> -		drm_dp_phy_name(dp_phy), max_cr_tries);
>> +	lt_err(intel_dp, dp_phy, "Failed clock recovery %d times, giving up!\n",
>> +	       max_cr_tries);
>>  
>>  	return false;
>>  }
>> @@ -911,11 +893,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
>>  		return DP_TRAINING_PATTERN_4;
>>  	} else if (crtc_state->port_clock == 810000) {
>>  		if (!source_tps4)
>> -			drm_dbg_kms(&i915->drm,
>> -				    "8.1 Gbps link rate without source TPS4 support\n");
>> +			lt_dbg(intel_dp, dp_phy,
>> +			       "8.1 Gbps link rate without source TPS4 support\n");
>>  		if (!sink_tps4)
>> -			drm_dbg_kms(&i915->drm,
>> -				    "8.1 Gbps link rate without sink TPS4 support\n");
>> +			lt_dbg(intel_dp, dp_phy,
>> +			       "8.1 Gbps link rate without sink TPS4 support\n");
>>  	}
>>  
>>  	/*
>> @@ -929,11 +911,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
>>  		return  DP_TRAINING_PATTERN_3;
>>  	} else if (crtc_state->port_clock >= 540000) {
>>  		if (!source_tps3)
>> -			drm_dbg_kms(&i915->drm,
>> -				    ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
>> +			lt_dbg(intel_dp, dp_phy,
>> +			       ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
>>  		if (!sink_tps3)
>> -			drm_dbg_kms(&i915->drm,
>> -				    ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
>> +			lt_dbg(intel_dp, dp_phy,
>> +			       ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
>>  	}
>>  
>>  	return DP_TRAINING_PATTERN_2;
>> @@ -949,8 +931,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>>  					    const struct intel_crtc_state *crtc_state,
>>  					    enum drm_dp_phy dp_phy)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	int tries;
>>  	u32 training_pattern;
>>  	u8 link_status[DP_LINK_STATUS_SIZE];
>> @@ -969,10 +949,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>>  	/* channel equalization */
>>  	if (!intel_dp_set_link_train(intel_dp, crtc_state, dp_phy,
>>  				     training_pattern)) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s][%s] Failed to start channel equalization\n",
>> -			encoder->base.base.id, encoder->base.name,
>> -			drm_dp_phy_name(dp_phy));
>> +		lt_err(intel_dp, dp_phy, "Failed to start channel equalization\n");
>>  		return false;
>>  	}
>>  
>> @@ -981,10 +958,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>>  
>>  		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
>>  						     link_status) < 0) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s][%s] Failed to get link status\n",
>> -				encoder->base.base.id, encoder->base.name,
>> -				drm_dp_phy_name(dp_phy));
>> +			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
>>  			break;
>>  		}
>>  
>> @@ -992,21 +966,15 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>>  		if (!drm_dp_clock_recovery_ok(link_status,
>>  					      crtc_state->lane_count)) {
>>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s][%s] Clock recovery check failed, cannot "
>> -				    "continue channel equalization\n",
>> -				    encoder->base.base.id, encoder->base.name,
>> -				    drm_dp_phy_name(dp_phy));
>> +			lt_dbg(intel_dp, dp_phy,
>> +			       "Clock recovery check failed, cannot continue channel equalization\n");
>>  			break;
>>  		}
>>  
>>  		if (drm_dp_channel_eq_ok(link_status,
>>  					 crtc_state->lane_count)) {
>>  			channel_eq = true;
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s][%s] Channel EQ done. DP Training successful\n",
>> -				    encoder->base.base.id, encoder->base.name,
>> -				    drm_dp_phy_name(dp_phy));
>> +			lt_dbg(intel_dp, dp_phy, "Channel EQ done. DP Training successful\n");
>>  			break;
>>  		}
>>  
>> @@ -1014,10 +982,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>>  		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
>>  					  link_status);
>>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s][%s] Failed to update link training\n",
>> -				encoder->base.base.id, encoder->base.name,
>> -				drm_dp_phy_name(dp_phy));
>> +			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
>>  			break;
>>  		}
>>  	}
>> @@ -1025,10 +990,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
>>  	/* Try 5 times, else fail and try at lower BW */
>>  	if (tries == 5) {
>>  		intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[ENCODER:%d:%s][%s] Channel equalization failed 5 times\n",
>> -			    encoder->base.base.id, encoder->base.name,
>> -			    drm_dp_phy_name(dp_phy));
>> +		lt_dbg(intel_dp, dp_phy, "Channel equalization failed 5 times\n");
>>  	}
>>  
>>  	return channel_eq;
>> @@ -1047,13 +1009,12 @@ static int
>>  intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
>>  			    const struct intel_crtc_state *crtc_state)
>>  {
>> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>>  	u8 sink_status;
>>  	int ret;
>>  
>>  	ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_SINK_STATUS, &sink_status);
>>  	if (ret != 1) {
>> -		drm_dbg_kms(&i915->drm, "Failed to read sink status\n");
>> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Failed to read sink status\n");
>>  		return ret < 0 ? ret : -EIO;
>>  	}
>>  
>> @@ -1079,9 +1040,6 @@ intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
>>  void intel_dp_stop_link_train(struct intel_dp *intel_dp,
>>  			      const struct intel_crtc_state *crtc_state)
>>  {
>> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -
>>  	intel_dp->link_trained = true;
>>  
>>  	intel_dp_disable_dpcd_training_pattern(intel_dp, DP_PHY_DPRX);
>> @@ -1090,9 +1048,7 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp,
>>  
>>  	if (intel_dp_is_uhbr(crtc_state) &&
>>  	    wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[ENCODER:%d:%s] 128b/132b intra-hop not clearing\n",
>> -			    encoder->base.base.id, encoder->base.name);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clearing\n");
>>  	}
>>  }
>>  
>> @@ -1101,8 +1057,6 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
>>  			const struct intel_crtc_state *crtc_state,
>>  			enum drm_dp_phy dp_phy)
>>  {
>> -	struct intel_connector *connector = intel_dp->attached_connector;
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>>  	bool ret = false;
>>  
>>  	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state, dp_phy))
>> @@ -1114,13 +1068,10 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
>>  	ret = true;
>>  
>>  out:
>> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
>> -		    "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] Link Training %s at link rate = %d, lane count = %d\n",
>> -		    connector->base.base.id, connector->base.name,
>> -		    encoder->base.base.id, encoder->base.name,
>> -		    drm_dp_phy_name(dp_phy),
>> -		    ret ? "passed" : "failed",
>> -		    crtc_state->port_clock, crtc_state->lane_count);
>> +	lt_dbg(intel_dp, dp_phy,
>> +	       "Link Training %s at link rate = %d, lane count = %d\n",
>> +	       ret ? "passed" : "failed",
>> +	       crtc_state->port_clock, crtc_state->lane_count);
>>  
>>  	return ret;
>>  }
>> @@ -1129,13 +1080,10 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
>>  						     const struct intel_crtc_state *crtc_state)
>>  {
>>  	struct intel_connector *intel_connector = intel_dp->attached_connector;
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>>  
>>  	if (intel_dp->hobl_active) {
>> -		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
>> -			    "[ENCODER:%d:%s] Link Training failed with HOBL active, "
>> -			    "not enabling it from now on",
>> -			    encoder->base.base.id, encoder->base.name);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX,
>> +		       "Link Training failed with HOBL active, not enabling it from now on\n");
>>  		intel_dp->hobl_failed = true;
>>  	} else if (intel_dp_get_link_train_fallback_values(intel_dp,
>>  							   crtc_state->port_clock,
>> @@ -1182,8 +1130,6 @@ static bool
>>  intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>>  			  const struct intel_crtc_state *crtc_state)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	u8 link_status[DP_LINK_STATUS_SIZE];
>>  	int delay_us;
>>  	int try, max_tries = 20;
>> @@ -1198,9 +1144,7 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>>  	 */
>>  	if (!intel_dp_reset_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
>>  				       DP_TRAINING_PATTERN_1)) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS1\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS1\n");
>>  		return false;
>>  	}
>>  
>> @@ -1208,27 +1152,21 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>>  
>>  	/* Read the initial TX FFE settings. */
>>  	if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] Failed to read TX FFE presets\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to read TX FFE presets\n");
>>  		return false;
>>  	}
>>  
>>  	/* Update signal levels and training set as requested. */
>>  	intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
>>  	if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] Failed to set initial TX FFE settings\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to set initial TX FFE settings\n");
>>  		return false;
>>  	}
>>  
>>  	/* Start transmitting 128b/132b TPS2. */
>>  	if (!intel_dp_set_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
>>  				     DP_TRAINING_PATTERN_2)) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2\n");
>>  		return false;
>>  	}
>>  
>> @@ -1245,32 +1183,25 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>>  		delay_us = drm_dp_128b132b_read_aux_rd_interval(&intel_dp->aux);
>>  
>>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Failed to read link status\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
>>  			return false;
>>  		}
>>  
>>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
>>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Downstream link training failure\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX,
>> +			       "Downstream link training failure\n");
>>  			return false;
>>  		}
>>  
>>  		if (drm_dp_128b132b_lane_channel_eq_done(link_status, crtc_state->lane_count)) {
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s] Lane channel eq done\n",
>> -				    encoder->base.base.id, encoder->base.name);
>> +			lt_dbg(intel_dp, DP_PHY_DPRX, "Lane channel eq done\n");
>>  			break;
>>  		}
>>  
>>  		if (timeout) {
>>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Lane channel eq timeout\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Lane channel eq timeout\n");
>>  			return false;
>>  		}
>>  
>> @@ -1280,18 +1211,14 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>>  		/* Update signal levels and training set as requested. */
>>  		intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
>>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Failed to update TX FFE settings\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to update TX FFE settings\n");
>>  			return false;
>>  		}
>>  	}
>>  
>>  	if (try == max_tries) {
>>  		intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] Max loop count reached\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "Max loop count reached\n");
>>  		return false;
>>  	}
>>  
>> @@ -1300,32 +1227,24 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
>>  			timeout = true; /* try one last time after deadline */
>>  
>>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Failed to read link status\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
>>  			return false;
>>  		}
>>  
>>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
>>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Downstream link training failure\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
>>  			return false;
>>  		}
>>  
>>  		if (drm_dp_128b132b_eq_interlane_align_done(link_status)) {
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s] Interlane align done\n",
>> -				    encoder->base.base.id, encoder->base.name);
>> +			lt_dbg(intel_dp, DP_PHY_DPRX, "Interlane align done\n");
>>  			break;
>>  		}
>>  
>>  		if (timeout) {
>>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Interlane align timeout\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Interlane align timeout\n");
>>  			return false;
>>  		}
>>  
>> @@ -1343,16 +1262,12 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
>>  			   const struct intel_crtc_state *crtc_state,
>>  			   int lttpr_count)
>>  {
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>  	u8 link_status[DP_LINK_STATUS_SIZE];
>>  	unsigned long deadline;
>>  
>>  	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TRAINING_PATTERN_SET,
>>  			       DP_TRAINING_PATTERN_2_CDS) != 1) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2 CDS\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2 CDS\n");
>>  		return false;
>>  	}
>>  
>> @@ -1368,34 +1283,26 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
>>  		usleep_range(2000, 3000);
>>  
>>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Failed to read link status\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
>>  			return false;
>>  		}
>>  
>>  		if (drm_dp_128b132b_eq_interlane_align_done(link_status) &&
>>  		    drm_dp_128b132b_cds_interlane_align_done(link_status) &&
>>  		    drm_dp_128b132b_lane_symbol_locked(link_status, crtc_state->lane_count)) {
>> -			drm_dbg_kms(&i915->drm,
>> -				    "[ENCODER:%d:%s] CDS interlane align done\n",
>> -				    encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "CDS interlane align done\n");
>>  			break;
>>  		}
>>  
>>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
>>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] Downstream link training failure\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
>>  			return false;
>>  		}
>>  
>>  		if (timeout) {
>>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
>> -			drm_err(&i915->drm,
>> -				"[ENCODER:%d:%s] CDS timeout\n",
>> -				encoder->base.base.id, encoder->base.name);
>> +			lt_err(intel_dp, DP_PHY_DPRX, "CDS timeout\n");
>>  			return false;
>>  		}
>>  	}
>> @@ -1411,15 +1318,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
>>  			     const struct intel_crtc_state *crtc_state,
>>  			     int lttpr_count)
>>  {
>> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>> -	struct intel_connector *connector = intel_dp->attached_connector;
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>>  	bool passed = false;
>>  
>>  	if (wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
>> -		drm_err(&i915->drm,
>> -			"[ENCODER:%d:%s] 128b/132b intra-hop not clear\n",
>> -			encoder->base.base.id, encoder->base.name);
>> +		lt_err(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clear\n");
>>  		return false;
>>  	}
>>  
>> @@ -1427,12 +1329,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
>>  	    intel_dp_128b132b_lane_cds(intel_dp, crtc_state, lttpr_count))
>>  		passed = true;
>>  
>> -	drm_dbg_kms(&i915->drm,
>> -		    "[CONNECTOR:%d:%s][ENCODER:%d:%s] 128b/132b Link Training %s at link rate = %d, lane count = %d\n",
>> -		    connector->base.base.id, connector->base.name,
>> -		    encoder->base.base.id, encoder->base.name,
>> -		    passed ? "passed" : "failed",
>> -		    crtc_state->port_clock, crtc_state->lane_count);
>> +	lt_dbg(intel_dp, DP_PHY_DPRX,
>> +	       "128b/132b Link Training %s at link rate = %d, lane count = %d\n",
>> +	       passed ? "passed" : "failed",
>> +	       crtc_state->port_clock, crtc_state->lane_count);
>>  
>>  	return passed;
>>  }
>> @@ -1451,8 +1351,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
>>  			       const struct intel_crtc_state *crtc_state)
>>  {
>>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>> -	struct intel_connector *connector = intel_dp->attached_connector;
>> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
>>  	bool passed;
>>  
>>  	/*
>> @@ -1485,10 +1383,7 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
>>  	 * ignore_long_hpd flag can unset from the testcase.
>>  	 */
>>  	if (!passed && i915->display.hotplug.ignore_long_hpd) {
>> -		drm_dbg_kms(&i915->drm,
>> -			    "[CONNECTOR:%d:%s][ENCODER:%d:%s] Ignore the link failure\n",
>> -			    connector->base.base.id, connector->base.name,
>> -			    encoder->base.base.id, encoder->base.name);
>> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Ignore the link failure\n");
>>  		return;
>>  	}
>>  
>> @@ -1499,8 +1394,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
>>  void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
>>  				 const struct intel_crtc_state *crtc_state)
>>  {
>> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>> -
>>  	/*
>>  	 * VIDEO_DIP_CTL register bit 31 should be set to '0' to not
>>  	 * disable SDP CRC. This is applicable for Display version 13.
>> @@ -1513,5 +1406,5 @@ void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
>>  				   DP_SDP_ERROR_DETECTION_CONFIGURATION,
>>  				   DP_SDP_CRC16_128B132B_EN);
>>  
>> -	drm_dbg_kms(&i915->drm, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
>> +	lt_dbg(intel_dp, DP_PHY_DPRX, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
>>  }
>> -- 
>> 2.37.2

-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH v2 07/12] drm/i915/dp: Add link training debug and error printing helpers

[Imre Deak]

On Fri, May 05, 2023 at 11:51:51AM +0300, Jani Nikula wrote:
> On Thu, 04 May 2023, Ville Syrjälä <ville.syrjala@linux.intel.com> wrote:
> > On Thu, May 04, 2023 at 02:10:43AM +0300, Imre Deak wrote:
> >> Add functions for printing link training debug and error messages, both
> >> to prepare for the next patch, which downgrades an error to a debug
> >> message if the sink is disconnected and to remove some code duplication.
> >> 
> >> v2: (Ville)
> >> - Always print the connector prefix.
> >> - Preserve the drm_dbg_kms() debug category.
> >> 
> >> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >> Signed-off-by: Imre Deak <imre.deak@intel.com>
> >
> > While I don't really like the custom debug infrastructure I can't
> > immediately see any really better way to do this.
> 
> To avoid any confusion, NAK on this patch.
> 
> For one thing, I'm firmly in the same camp with the custom debug
> wrappers. I hate it that gem/gt has started adding their own wrappers,
> and as you add one as an example, it just expands from there. We now
> have tons. I think it's enough that we have *drm* specific wrappers.
> 
> That said, I could've lived with this one, as it's limited to within a
> file (though I know that can change all too quickly if we're not
> vigilant).
> 
> The reason for rejecting this altogether is in the
> implementation. Having an extra function in there makes the function
> name debugging in __drm_dev_dbg() (where all this leads to after the
> onion has been peeled) result in:
> 
> <7>[   35.817968] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Using LINK_BW_SET value 0a
> <7>[   35.818535] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] 8b/10b, lanes: 2, vswing levels: 0/0/0/0, pre-emphasis levels: 0/0/0/0
> <7>[   35.818685] i915 0000:00:02.0: [drm:hsw_set_signal_levels [i915]] Using signal levels 00000000
> <7>[   35.818841] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Using DP training pattern TPS1
> <7>[   35.819990] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Clock recovery OK
> <7>[   35.820146] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Using DP training pattern TPS2
> <7>[   35.821886] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Channel EQ done. DP Training successful
> <7>[   35.822035] i915 0000:00:02.0: [drm:lt_msg [i915]] [CONNECTOR:119:DP-2][ENCODER:118:DDI E/PHY E][DPRX] Link Training passed at link rate = 270000, lane count = 2
> 
> And that's just useless.
> 
> I don't want it fixed with some __always_inline hack either.
> 
> Back to the drawing board, I'm afraid.

Ok, looking for a way to have the caller function printed as a prefix
instead, any good idea for that is welcome.

> 
> 
> BR,
> Jani.
> 
> 
> >
> > Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> >> ---
> >>  .../drm/i915/display/intel_dp_link_training.c | 387 +++++++-----------
> >>  1 file changed, 140 insertions(+), 247 deletions(-)
> >> 
> >> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> >> index e92c62bcc9b85..f83944eaac128 100644
> >> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> >> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> >> @@ -26,6 +26,43 @@
> >>  #include "intel_dp.h"
> >>  #include "intel_dp_link_training.h"
> >>  
> >> +__printf(4, 5)
> >> +static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
> >> +		   bool is_error, const char *format, ...)
> >> +{
> >> +	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >> +	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> +	struct intel_connector *connector = intel_dp->attached_connector;
> >> +	struct va_format vaf;
> >> +	va_list args;
> >> +
> >> +	if (drm_WARN_ON(&i915->drm, !connector))
> >> +		return;
> >> +
> >> +	va_start(args, format);
> >> +	vaf.fmt = format;
> >> +	vaf.va = &args;
> >> +
> >> +	if (is_error)
> >> +		drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> >> +			connector->base.base.id, connector->base.name,
> >> +			encoder->base.base.id, encoder->base.name,
> >> +			drm_dp_phy_name(dp_phy),
> >> +			&vaf);
> >> +	else
> >> +		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> >> +			    connector->base.base.id, connector->base.name,
> >> +			    encoder->base.base.id, encoder->base.name,
> >> +			    drm_dp_phy_name(dp_phy),
> >> +			    &vaf);
> >> +}
> >> +
> >> +#define lt_err(intel_dp, dp_phy, format, ...) \
> >> +	lt_msg(intel_dp, dp_phy, true, format, ## __VA_ARGS__)
> >> +
> >> +#define lt_dbg(intel_dp, dp_phy, format, ...) \
> >> +	lt_msg(intel_dp, dp_phy, false, format, ## __VA_ARGS__)
> >> +
> >>  static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
> >>  {
> >>  	memset(intel_dp->lttpr_common_caps, 0, sizeof(intel_dp->lttpr_common_caps));
> >> @@ -47,29 +84,21 @@ static void intel_dp_read_lttpr_phy_caps(struct intel_dp *intel_dp,
> >>  					 const u8 dpcd[DP_RECEIVER_CAP_SIZE],
> >>  					 enum drm_dp_phy dp_phy)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >>  	u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy);
> >>  
> >>  	if (drm_dp_read_lttpr_phy_caps(&intel_dp->aux, dpcd, dp_phy, phy_caps) < 0) {
> >> -		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> >> -			    "[ENCODER:%d:%s][%s] failed to read the PHY caps\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy));
> >> +		lt_dbg(intel_dp, dp_phy, "failed to read the PHY caps\n");
> >>  		return;
> >>  	}
> >>  
> >> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> >> -		    "[ENCODER:%d:%s][%s] PHY capabilities: %*ph\n",
> >> -		    encoder->base.base.id, encoder->base.name,
> >> -		    drm_dp_phy_name(dp_phy),
> >> -		    (int)sizeof(intel_dp->lttpr_phy_caps[0]),
> >> -		    phy_caps);
> >> +	lt_dbg(intel_dp, dp_phy, "PHY capabilities: %*ph\n",
> >> +	       (int)sizeof(intel_dp->lttpr_phy_caps[0]),
> >> +	       phy_caps);
> >>  }
> >>  
> >>  static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
> >>  					    const u8 dpcd[DP_RECEIVER_CAP_SIZE])
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >>  	int ret;
> >>  
> >>  	ret = drm_dp_read_lttpr_common_caps(&intel_dp->aux, dpcd,
> >> @@ -77,11 +106,9 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
> >>  	if (ret < 0)
> >>  		goto reset_caps;
> >>  
> >> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> >> -		    "[ENCODER:%d:%s] LTTPR common capabilities: %*ph\n",
> >> -		    encoder->base.base.id, encoder->base.name,
> >> -		    (int)sizeof(intel_dp->lttpr_common_caps),
> >> -		    intel_dp->lttpr_common_caps);
> >> +	lt_dbg(intel_dp, DP_PHY_DPRX, "LTTPR common capabilities: %*ph\n",
> >> +	       (int)sizeof(intel_dp->lttpr_common_caps),
> >> +	       intel_dp->lttpr_common_caps);
> >>  
> >>  	/* The minimum value of LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV is 1.4 */
> >>  	if (intel_dp->lttpr_common_caps[0] < 0x14)
> >> @@ -105,8 +132,6 @@ intel_dp_set_lttpr_transparent_mode(struct intel_dp *intel_dp, bool enable)
> >>  
> >>  static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	int lttpr_count;
> >>  	int i;
> >>  
> >> @@ -138,9 +163,8 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
> >>  		return 0;
> >>  
> >>  	if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) {
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[ENCODER:%d:%s] Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n",
> >> -			    encoder->base.base.id, encoder->base.name);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX,
> >> +		       "Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n");
> >>  
> >>  		intel_dp_set_lttpr_transparent_mode(intel_dp, true);
> >>  		intel_dp_reset_lttpr_count(intel_dp);
> >> @@ -409,26 +433,22 @@ intel_dp_get_adjust_train(struct intel_dp *intel_dp,
> >>  			  enum drm_dp_phy dp_phy,
> >>  			  const u8 link_status[DP_LINK_STATUS_SIZE])
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	int lane;
> >>  
> >>  	if (intel_dp_is_uhbr(crtc_state)) {
> >> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
> >> -			    "TX FFE request: " TRAIN_REQ_FMT "\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy),
> >> -			    crtc_state->lane_count,
> >> -			    TRAIN_REQ_TX_FFE_ARGS(link_status));
> >> +		lt_dbg(intel_dp, dp_phy,
> >> +		       "128b/132b, lanes: %d, "
> >> +		       "TX FFE request: " TRAIN_REQ_FMT "\n",
> >> +		       crtc_state->lane_count,
> >> +		       TRAIN_REQ_TX_FFE_ARGS(link_status));
> >>  	} else {
> >> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
> >> -			    "vswing request: " TRAIN_REQ_FMT ", "
> >> -			    "pre-emphasis request: " TRAIN_REQ_FMT "\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy),
> >> -			    crtc_state->lane_count,
> >> -			    TRAIN_REQ_VSWING_ARGS(link_status),
> >> -			    TRAIN_REQ_PREEMPH_ARGS(link_status));
> >> +		lt_dbg(intel_dp, dp_phy,
> >> +		       "8b/10b, lanes: %d, "
> >> +		       "vswing request: " TRAIN_REQ_FMT ", "
> >> +		       "pre-emphasis request: " TRAIN_REQ_FMT "\n",
> >> +		       crtc_state->lane_count,
> >> +		       TRAIN_REQ_VSWING_ARGS(link_status),
> >> +		       TRAIN_REQ_PREEMPH_ARGS(link_status));
> >>  	}
> >>  
> >>  	for (lane = 0; lane < 4; lane++)
> >> @@ -487,16 +507,11 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
> >>  				       enum drm_dp_phy dp_phy,
> >>  				       u8 dp_train_pat)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
> >>  
> >>  	if (train_pat != DP_TRAINING_PATTERN_DISABLE)
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[ENCODER:%d:%s][%s] Using DP training pattern TPS%c\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy),
> >> -			    dp_training_pattern_name(train_pat));
> >> +		lt_dbg(intel_dp, dp_phy, "Using DP training pattern TPS%c\n",
> >> +		       dp_training_pattern_name(train_pat));
> >>  
> >>  	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
> >>  }
> >> @@ -531,24 +546,21 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
> >>  				enum drm_dp_phy dp_phy)
> >>  {
> >>  	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  
> >>  	if (intel_dp_is_uhbr(crtc_state)) {
> >> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
> >> -			    "TX FFE presets: " TRAIN_SET_FMT "\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy),
> >> -			    crtc_state->lane_count,
> >> -			    TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
> >> +		lt_dbg(intel_dp, dp_phy,
> >> +		       "128b/132b, lanes: %d, "
> >> +		       "TX FFE presets: " TRAIN_SET_FMT "\n",
> >> +		       crtc_state->lane_count,
> >> +		       TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
> >>  	} else {
> >> -		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
> >> -			    "vswing levels: " TRAIN_SET_FMT ", "
> >> -			    "pre-emphasis levels: " TRAIN_SET_FMT "\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy),
> >> -			    crtc_state->lane_count,
> >> -			    TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
> >> -			    TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
> >> +		lt_dbg(intel_dp, dp_phy,
> >> +		       "8b/10b, lanes: %d, "
> >> +		       "vswing levels: " TRAIN_SET_FMT ", "
> >> +		       "pre-emphasis levels: " TRAIN_SET_FMT "\n",
> >> +		       crtc_state->lane_count,
> >> +		       TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
> >> +		       TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
> >>  	}
> >>  
> >>  	if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy))
> >> @@ -677,8 +689,6 @@ static bool
> >>  intel_dp_prepare_link_train(struct intel_dp *intel_dp,
> >>  			    const struct intel_crtc_state *crtc_state)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	u8 link_bw, rate_select;
> >>  
> >>  	if (intel_dp->prepare_link_retrain)
> >> @@ -699,24 +709,21 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp,
> >>  	 * link rates are not stable.
> >>  	 */
> >>  	if (!link_bw) {
> >> -		struct intel_connector *connector = intel_dp->attached_connector;
> >>  		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
> >>  
> >> -		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Reloading eDP link rates\n",
> >> -			    connector->base.base.id, connector->base.name);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Reloading eDP link rates\n");
> >>  
> >>  		drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,
> >>  				 sink_rates, sizeof(sink_rates));
> >>  	}
> >>  
> >>  	if (link_bw)
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[ENCODER:%d:%s] Using LINK_BW_SET value %02x\n",
> >> -			    encoder->base.base.id, encoder->base.name, link_bw);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Using LINK_BW_SET value %02x\n",
> >> +		       link_bw);
> >>  	else
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[ENCODER:%d:%s] Using LINK_RATE_SET value %02x\n",
> >> -			    encoder->base.base.id, encoder->base.name, rate_select);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX,
> >> +			    "Using LINK_RATE_SET value %02x\n",
> >> +			    rate_select);
> >>  	/*
> >>  	 * Spec DP2.1 Section 3.5.2.16
> >>  	 * Prior to LT DPTX should set 128b/132b DP Channel coding and then set link rate
> >> @@ -758,15 +765,10 @@ void
> >>  intel_dp_dump_link_status(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
> >>  			  const u8 link_status[DP_LINK_STATUS_SIZE])
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >> -
> >> -	drm_dbg_kms(&i915->drm,
> >> -		    "[ENCODER:%d:%s][%s] ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
> >> -		    encoder->base.base.id, encoder->base.name,
> >> -		    drm_dp_phy_name(dp_phy),
> >> -		    link_status[0], link_status[1], link_status[2],
> >> -		    link_status[3], link_status[4], link_status[5]);
> >> +	lt_dbg(intel_dp, dp_phy,
> >> +	       "ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
> >> +	       link_status[0], link_status[1], link_status[2],
> >> +	       link_status[3], link_status[4], link_status[5]);
> >>  }
> >>  
> >>  /*
> >> @@ -778,8 +780,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
> >>  				      const struct intel_crtc_state *crtc_state,
> >>  				      enum drm_dp_phy dp_phy)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	u8 old_link_status[DP_LINK_STATUS_SIZE] = {};
> >>  	int voltage_tries, cr_tries, max_cr_tries;
> >>  	u8 link_status[DP_LINK_STATUS_SIZE];
> >> @@ -794,9 +794,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
> >>  	if (!intel_dp_reset_link_train(intel_dp, crtc_state, dp_phy,
> >>  				       DP_TRAINING_PATTERN_1 |
> >>  				       DP_LINK_SCRAMBLING_DISABLE)) {
> >> -		drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to enable link training\n",
> >> -			encoder->base.base.id, encoder->base.name,
> >> -			drm_dp_phy_name(dp_phy));
> >> +		lt_err(intel_dp, dp_phy, "Failed to enable link training\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -819,35 +817,24 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
> >>  
> >>  		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
> >>  						     link_status) < 0) {
> >> -			drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to get link status\n",
> >> -				encoder->base.base.id, encoder->base.name,
> >> -				drm_dp_phy_name(dp_phy));
> >> +			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s][%s] Clock recovery OK\n",
> >> -				    encoder->base.base.id, encoder->base.name,
> >> -				    drm_dp_phy_name(dp_phy));
> >> +			lt_dbg(intel_dp, dp_phy, "Clock recovery OK\n");
> >>  			return true;
> >>  		}
> >>  
> >>  		if (voltage_tries == 5) {
> >>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s][%s] Same voltage tried 5 times\n",
> >> -				    encoder->base.base.id, encoder->base.name,
> >> -				    drm_dp_phy_name(dp_phy));
> >> +			lt_dbg(intel_dp, dp_phy, "Same voltage tried 5 times\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (max_vswing_reached) {
> >>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s][%s] Max Voltage Swing reached\n",
> >> -				    encoder->base.base.id, encoder->base.name,
> >> -				    drm_dp_phy_name(dp_phy));
> >> +			lt_dbg(intel_dp, dp_phy, "Max Voltage Swing reached\n");
> >>  			return false;
> >>  		}
> >>  
> >> @@ -855,10 +842,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
> >>  		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
> >>  					  link_status);
> >>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s][%s] Failed to update link training\n",
> >> -				encoder->base.base.id, encoder->base.name,
> >> -				drm_dp_phy_name(dp_phy));
> >> +			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
> >>  			return false;
> >>  		}
> >>  
> >> @@ -874,10 +858,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
> >>  	}
> >>  
> >>  	intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> >> -	drm_err(&i915->drm,
> >> -		"[ENCODER:%d:%s][%s] Failed clock recovery %d times, giving up!\n",
> >> -		encoder->base.base.id, encoder->base.name,
> >> -		drm_dp_phy_name(dp_phy), max_cr_tries);
> >> +	lt_err(intel_dp, dp_phy, "Failed clock recovery %d times, giving up!\n",
> >> +	       max_cr_tries);
> >>  
> >>  	return false;
> >>  }
> >> @@ -911,11 +893,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
> >>  		return DP_TRAINING_PATTERN_4;
> >>  	} else if (crtc_state->port_clock == 810000) {
> >>  		if (!source_tps4)
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "8.1 Gbps link rate without source TPS4 support\n");
> >> +			lt_dbg(intel_dp, dp_phy,
> >> +			       "8.1 Gbps link rate without source TPS4 support\n");
> >>  		if (!sink_tps4)
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "8.1 Gbps link rate without sink TPS4 support\n");
> >> +			lt_dbg(intel_dp, dp_phy,
> >> +			       "8.1 Gbps link rate without sink TPS4 support\n");
> >>  	}
> >>  
> >>  	/*
> >> @@ -929,11 +911,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
> >>  		return  DP_TRAINING_PATTERN_3;
> >>  	} else if (crtc_state->port_clock >= 540000) {
> >>  		if (!source_tps3)
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
> >> +			lt_dbg(intel_dp, dp_phy,
> >> +			       ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
> >>  		if (!sink_tps3)
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
> >> +			lt_dbg(intel_dp, dp_phy,
> >> +			       ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
> >>  	}
> >>  
> >>  	return DP_TRAINING_PATTERN_2;
> >> @@ -949,8 +931,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
> >>  					    const struct intel_crtc_state *crtc_state,
> >>  					    enum drm_dp_phy dp_phy)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	int tries;
> >>  	u32 training_pattern;
> >>  	u8 link_status[DP_LINK_STATUS_SIZE];
> >> @@ -969,10 +949,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
> >>  	/* channel equalization */
> >>  	if (!intel_dp_set_link_train(intel_dp, crtc_state, dp_phy,
> >>  				     training_pattern)) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s][%s] Failed to start channel equalization\n",
> >> -			encoder->base.base.id, encoder->base.name,
> >> -			drm_dp_phy_name(dp_phy));
> >> +		lt_err(intel_dp, dp_phy, "Failed to start channel equalization\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -981,10 +958,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
> >>  
> >>  		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
> >>  						     link_status) < 0) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s][%s] Failed to get link status\n",
> >> -				encoder->base.base.id, encoder->base.name,
> >> -				drm_dp_phy_name(dp_phy));
> >> +			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
> >>  			break;
> >>  		}
> >>  
> >> @@ -992,21 +966,15 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
> >>  		if (!drm_dp_clock_recovery_ok(link_status,
> >>  					      crtc_state->lane_count)) {
> >>  			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s][%s] Clock recovery check failed, cannot "
> >> -				    "continue channel equalization\n",
> >> -				    encoder->base.base.id, encoder->base.name,
> >> -				    drm_dp_phy_name(dp_phy));
> >> +			lt_dbg(intel_dp, dp_phy,
> >> +			       "Clock recovery check failed, cannot continue channel equalization\n");
> >>  			break;
> >>  		}
> >>  
> >>  		if (drm_dp_channel_eq_ok(link_status,
> >>  					 crtc_state->lane_count)) {
> >>  			channel_eq = true;
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s][%s] Channel EQ done. DP Training successful\n",
> >> -				    encoder->base.base.id, encoder->base.name,
> >> -				    drm_dp_phy_name(dp_phy));
> >> +			lt_dbg(intel_dp, dp_phy, "Channel EQ done. DP Training successful\n");
> >>  			break;
> >>  		}
> >>  
> >> @@ -1014,10 +982,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
> >>  		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
> >>  					  link_status);
> >>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s][%s] Failed to update link training\n",
> >> -				encoder->base.base.id, encoder->base.name,
> >> -				drm_dp_phy_name(dp_phy));
> >> +			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
> >>  			break;
> >>  		}
> >>  	}
> >> @@ -1025,10 +990,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
> >>  	/* Try 5 times, else fail and try at lower BW */
> >>  	if (tries == 5) {
> >>  		intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[ENCODER:%d:%s][%s] Channel equalization failed 5 times\n",
> >> -			    encoder->base.base.id, encoder->base.name,
> >> -			    drm_dp_phy_name(dp_phy));
> >> +		lt_dbg(intel_dp, dp_phy, "Channel equalization failed 5 times\n");
> >>  	}
> >>  
> >>  	return channel_eq;
> >> @@ -1047,13 +1009,12 @@ static int
> >>  intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
> >>  			    const struct intel_crtc_state *crtc_state)
> >>  {
> >> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >>  	u8 sink_status;
> >>  	int ret;
> >>  
> >>  	ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_SINK_STATUS, &sink_status);
> >>  	if (ret != 1) {
> >> -		drm_dbg_kms(&i915->drm, "Failed to read sink status\n");
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Failed to read sink status\n");
> >>  		return ret < 0 ? ret : -EIO;
> >>  	}
> >>  
> >> @@ -1079,9 +1040,6 @@ intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
> >>  void intel_dp_stop_link_train(struct intel_dp *intel_dp,
> >>  			      const struct intel_crtc_state *crtc_state)
> >>  {
> >> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -
> >>  	intel_dp->link_trained = true;
> >>  
> >>  	intel_dp_disable_dpcd_training_pattern(intel_dp, DP_PHY_DPRX);
> >> @@ -1090,9 +1048,7 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp,
> >>  
> >>  	if (intel_dp_is_uhbr(crtc_state) &&
> >>  	    wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[ENCODER:%d:%s] 128b/132b intra-hop not clearing\n",
> >> -			    encoder->base.base.id, encoder->base.name);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clearing\n");
> >>  	}
> >>  }
> >>  
> >> @@ -1101,8 +1057,6 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
> >>  			const struct intel_crtc_state *crtc_state,
> >>  			enum drm_dp_phy dp_phy)
> >>  {
> >> -	struct intel_connector *connector = intel_dp->attached_connector;
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >>  	bool ret = false;
> >>  
> >>  	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state, dp_phy))
> >> @@ -1114,13 +1068,10 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
> >>  	ret = true;
> >>  
> >>  out:
> >> -	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> >> -		    "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] Link Training %s at link rate = %d, lane count = %d\n",
> >> -		    connector->base.base.id, connector->base.name,
> >> -		    encoder->base.base.id, encoder->base.name,
> >> -		    drm_dp_phy_name(dp_phy),
> >> -		    ret ? "passed" : "failed",
> >> -		    crtc_state->port_clock, crtc_state->lane_count);
> >> +	lt_dbg(intel_dp, dp_phy,
> >> +	       "Link Training %s at link rate = %d, lane count = %d\n",
> >> +	       ret ? "passed" : "failed",
> >> +	       crtc_state->port_clock, crtc_state->lane_count);
> >>  
> >>  	return ret;
> >>  }
> >> @@ -1129,13 +1080,10 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
> >>  						     const struct intel_crtc_state *crtc_state)
> >>  {
> >>  	struct intel_connector *intel_connector = intel_dp->attached_connector;
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >>  
> >>  	if (intel_dp->hobl_active) {
> >> -		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
> >> -			    "[ENCODER:%d:%s] Link Training failed with HOBL active, "
> >> -			    "not enabling it from now on",
> >> -			    encoder->base.base.id, encoder->base.name);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX,
> >> +		       "Link Training failed with HOBL active, not enabling it from now on\n");
> >>  		intel_dp->hobl_failed = true;
> >>  	} else if (intel_dp_get_link_train_fallback_values(intel_dp,
> >>  							   crtc_state->port_clock,
> >> @@ -1182,8 +1130,6 @@ static bool
> >>  intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
> >>  			  const struct intel_crtc_state *crtc_state)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	u8 link_status[DP_LINK_STATUS_SIZE];
> >>  	int delay_us;
> >>  	int try, max_tries = 20;
> >> @@ -1198,9 +1144,7 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
> >>  	 */
> >>  	if (!intel_dp_reset_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
> >>  				       DP_TRAINING_PATTERN_1)) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS1\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS1\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -1208,27 +1152,21 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
> >>  
> >>  	/* Read the initial TX FFE settings. */
> >>  	if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] Failed to read TX FFE presets\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to read TX FFE presets\n");
> >>  		return false;
> >>  	}
> >>  
> >>  	/* Update signal levels and training set as requested. */
> >>  	intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
> >>  	if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] Failed to set initial TX FFE settings\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to set initial TX FFE settings\n");
> >>  		return false;
> >>  	}
> >>  
> >>  	/* Start transmitting 128b/132b TPS2. */
> >>  	if (!intel_dp_set_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
> >>  				     DP_TRAINING_PATTERN_2)) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -1245,32 +1183,25 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
> >>  		delay_us = drm_dp_128b132b_read_aux_rd_interval(&intel_dp->aux);
> >>  
> >>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Failed to read link status\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
> >>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Downstream link training failure\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX,
> >> +			       "Downstream link training failure\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (drm_dp_128b132b_lane_channel_eq_done(link_status, crtc_state->lane_count)) {
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s] Lane channel eq done\n",
> >> -				    encoder->base.base.id, encoder->base.name);
> >> +			lt_dbg(intel_dp, DP_PHY_DPRX, "Lane channel eq done\n");
> >>  			break;
> >>  		}
> >>  
> >>  		if (timeout) {
> >>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Lane channel eq timeout\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Lane channel eq timeout\n");
> >>  			return false;
> >>  		}
> >>  
> >> @@ -1280,18 +1211,14 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
> >>  		/* Update signal levels and training set as requested. */
> >>  		intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
> >>  		if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Failed to update TX FFE settings\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to update TX FFE settings\n");
> >>  			return false;
> >>  		}
> >>  	}
> >>  
> >>  	if (try == max_tries) {
> >>  		intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] Max loop count reached\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "Max loop count reached\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -1300,32 +1227,24 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
> >>  			timeout = true; /* try one last time after deadline */
> >>  
> >>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Failed to read link status\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
> >>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Downstream link training failure\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (drm_dp_128b132b_eq_interlane_align_done(link_status)) {
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s] Interlane align done\n",
> >> -				    encoder->base.base.id, encoder->base.name);
> >> +			lt_dbg(intel_dp, DP_PHY_DPRX, "Interlane align done\n");
> >>  			break;
> >>  		}
> >>  
> >>  		if (timeout) {
> >>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Interlane align timeout\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Interlane align timeout\n");
> >>  			return false;
> >>  		}
> >>  
> >> @@ -1343,16 +1262,12 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
> >>  			   const struct intel_crtc_state *crtc_state,
> >>  			   int lttpr_count)
> >>  {
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >> -	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> >>  	u8 link_status[DP_LINK_STATUS_SIZE];
> >>  	unsigned long deadline;
> >>  
> >>  	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TRAINING_PATTERN_SET,
> >>  			       DP_TRAINING_PATTERN_2_CDS) != 1) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2 CDS\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2 CDS\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -1368,34 +1283,26 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
> >>  		usleep_range(2000, 3000);
> >>  
> >>  		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Failed to read link status\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (drm_dp_128b132b_eq_interlane_align_done(link_status) &&
> >>  		    drm_dp_128b132b_cds_interlane_align_done(link_status) &&
> >>  		    drm_dp_128b132b_lane_symbol_locked(link_status, crtc_state->lane_count)) {
> >> -			drm_dbg_kms(&i915->drm,
> >> -				    "[ENCODER:%d:%s] CDS interlane align done\n",
> >> -				    encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "CDS interlane align done\n");
> >>  			break;
> >>  		}
> >>  
> >>  		if (drm_dp_128b132b_link_training_failed(link_status)) {
> >>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] Downstream link training failure\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
> >>  			return false;
> >>  		}
> >>  
> >>  		if (timeout) {
> >>  			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
> >> -			drm_err(&i915->drm,
> >> -				"[ENCODER:%d:%s] CDS timeout\n",
> >> -				encoder->base.base.id, encoder->base.name);
> >> +			lt_err(intel_dp, DP_PHY_DPRX, "CDS timeout\n");
> >>  			return false;
> >>  		}
> >>  	}
> >> @@ -1411,15 +1318,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
> >>  			     const struct intel_crtc_state *crtc_state,
> >>  			     int lttpr_count)
> >>  {
> >> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >> -	struct intel_connector *connector = intel_dp->attached_connector;
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >>  	bool passed = false;
> >>  
> >>  	if (wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
> >> -		drm_err(&i915->drm,
> >> -			"[ENCODER:%d:%s] 128b/132b intra-hop not clear\n",
> >> -			encoder->base.base.id, encoder->base.name);
> >> +		lt_err(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clear\n");
> >>  		return false;
> >>  	}
> >>  
> >> @@ -1427,12 +1329,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
> >>  	    intel_dp_128b132b_lane_cds(intel_dp, crtc_state, lttpr_count))
> >>  		passed = true;
> >>  
> >> -	drm_dbg_kms(&i915->drm,
> >> -		    "[CONNECTOR:%d:%s][ENCODER:%d:%s] 128b/132b Link Training %s at link rate = %d, lane count = %d\n",
> >> -		    connector->base.base.id, connector->base.name,
> >> -		    encoder->base.base.id, encoder->base.name,
> >> -		    passed ? "passed" : "failed",
> >> -		    crtc_state->port_clock, crtc_state->lane_count);
> >> +	lt_dbg(intel_dp, DP_PHY_DPRX,
> >> +	       "128b/132b Link Training %s at link rate = %d, lane count = %d\n",
> >> +	       passed ? "passed" : "failed",
> >> +	       crtc_state->port_clock, crtc_state->lane_count);
> >>  
> >>  	return passed;
> >>  }
> >> @@ -1451,8 +1351,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
> >>  			       const struct intel_crtc_state *crtc_state)
> >>  {
> >>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >> -	struct intel_connector *connector = intel_dp->attached_connector;
> >> -	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >>  	bool passed;
> >>  
> >>  	/*
> >> @@ -1485,10 +1383,7 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
> >>  	 * ignore_long_hpd flag can unset from the testcase.
> >>  	 */
> >>  	if (!passed && i915->display.hotplug.ignore_long_hpd) {
> >> -		drm_dbg_kms(&i915->drm,
> >> -			    "[CONNECTOR:%d:%s][ENCODER:%d:%s] Ignore the link failure\n",
> >> -			    connector->base.base.id, connector->base.name,
> >> -			    encoder->base.base.id, encoder->base.name);
> >> +		lt_dbg(intel_dp, DP_PHY_DPRX, "Ignore the link failure\n");
> >>  		return;
> >>  	}
> >>  
> >> @@ -1499,8 +1394,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
> >>  void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
> >>  				 const struct intel_crtc_state *crtc_state)
> >>  {
> >> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >> -
> >>  	/*
> >>  	 * VIDEO_DIP_CTL register bit 31 should be set to '0' to not
> >>  	 * disable SDP CRC. This is applicable for Display version 13.
> >> @@ -1513,5 +1406,5 @@ void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
> >>  				   DP_SDP_ERROR_DETECTION_CONFIGURATION,
> >>  				   DP_SDP_CRC16_128B132B_EN);
> >>  
> >> -	drm_dbg_kms(&i915->drm, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
> >> +	lt_dbg(intel_dp, DP_PHY_DPRX, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
> >>  }
> >> -- 
> >> 2.37.2
> 
> -- 
> Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH v2 08/12] drm/i915/dp: Convert link training error to debug message on disconnected sink

[Imre Deak]

On Fri, May 05, 2023 at 11:22:36AM +0300, Govindapillai, Vinod wrote:
> On Thu, 2023-05-04 at 02:10 +0300, Imre Deak wrote:
> > If a sink is disconnected it's expected that link training actions will
> > fail on it, so downgrade the error messages about such actions to be a
> > debug message. Such - expected - link training failures are more
> > frequent after a follow up patch, after which an active TypeC link is
> > reset after the sink is disconnected which also involves a link
> > training.
> >
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_dp.c               |  2 +-
> >  drivers/gpu/drm/i915/display/intel_dp.h               |  1 +
> >  drivers/gpu/drm/i915/display/intel_dp_link_training.c | 11 +++++++++--
> >  3 files changed, 11 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> > index 4361c1ac65c3a..1942a05719776 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> > @@ -4179,7 +4179,7 @@ static int intel_dp_prep_link_retrain(struct intel_dp *intel_dp,
> >         return ret;
> >  }
> >
> > -static bool intel_dp_is_connected(struct intel_dp *intel_dp)
> > +bool intel_dp_is_connected(struct intel_dp *intel_dp)
> >  {
> >         struct intel_connector *connector = intel_dp->attached_connector;
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> > index ef39e4f7a329e..488da392fafe5 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp.h
> > +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> > @@ -42,6 +42,7 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
> >                               int link_rate, int lane_count);
> >  int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
> >                                             int link_rate, u8 lane_count);
> > +bool intel_dp_is_connected(struct intel_dp *intel_dp);
> >  int intel_dp_retrain_link(struct intel_encoder *encoder,
> >                           struct drm_modeset_acquire_ctx *ctx);
> >  void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > index f83944eaac128..2fe076e2d64b3 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > @@ -33,6 +33,7 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
> >         struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> >         struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
> >         struct intel_connector *connector = intel_dp->attached_connector;
> > +       const char *discon_str = "";
> >         struct va_format vaf;
> >         va_list args;
> >
> > @@ -43,6 +44,11 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
> >         vaf.fmt = format;
> >         vaf.va = &args;
> >
> > +       if (is_error && !intel_dp_is_connected(intel_dp)) {
> > +               discon_str = " (sink disconnected)";
> > +               is_error = false;
> > +       }
> > +
> Hi imre,
> 
> If the ignore long HPD env variable is set, in case of spurious HPDs
> we will ignore the long HPDs and the connector status remains
> unchanged. So don't we need to downgrade the error messages to debug
> messages if dev_priv->display.hotplug.ignore_long_hpd is set?

Yes, if the connector state is forced in general, we should check here
the actual HPD state instead (as reported by intel_digital_port_connected()).

> 
> BR
> vinod
> 
> >         if (is_error)
> >                 drm_err(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> >                         connector->base.base.id, connector->base.name,
> > @@ -50,11 +56,12 @@ static void lt_msg(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
> >                         drm_dp_phy_name(dp_phy),
> >                         &vaf);
> >         else
> > -               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV\n",
> > +               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] %pV%s\n",
> >                             connector->base.base.id, connector->base.name,
> >                             encoder->base.base.id, encoder->base.name,
> >                             drm_dp_phy_name(dp_phy),
> > -                           &vaf);
> > +                           &vaf,
> > +                           discon_str);
> >  }
> >
> >  #define lt_err(intel_dp, dp_phy, format, ...) \
> 

[Intel-gfx] [PATCH v3 02/12] drm/i915: Make the CRTC state consistent during sanitize-disabling

[Imre Deak]

Make sure that the CRTC state is reset correctly, as expected after
disabling the CRTC.

In particular this change will:
- Zero all the CSC blob pointers after intel_crtc_free_hw_state()
  has freed them.
- Zero the shared DPLL and port PLL pointers and clear the
  corresponding CRTC reference flag in the PLL state.
- Reset all the transcoder and pipe fields.

v2:
- Reset fully the CRTC state. (Ville)
- Clear pipe active flags in the DPLL state.

v3:
- Clear only the CRTC reference flag and add a helper for this.
  (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 23 +++++++++++++------
 drivers/gpu/drm/i915/display/intel_dpll_mgr.h |  3 +++
 .../drm/i915/display/intel_modeset_setup.c    | 13 ++++++-----
 3 files changed, 26 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index ed372d227aa73..e436127bfe94e 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -374,22 +374,31 @@ intel_reference_shared_dpll(struct intel_atomic_state *state,
 		    crtc->base.base.id, crtc->base.name, pll->info->name);
 }
 
+void
+intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
+				   const struct intel_shared_dpll *pll,
+				   struct intel_shared_dpll_state *shared_dpll_state)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+
+	drm_WARN_ON(&i915->drm, (shared_dpll_state->pipe_mask & BIT(crtc->pipe)) == 0);
+
+	shared_dpll_state->pipe_mask &= ~BIT(crtc->pipe);
+
+	drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] releasing %s\n",
+		    crtc->base.base.id, crtc->base.name, pll->info->name);
+}
+
 static void intel_unreference_shared_dpll(struct intel_atomic_state *state,
 					  const struct intel_crtc *crtc,
 					  const struct intel_shared_dpll *pll)
 {
-	struct drm_i915_private *i915 = to_i915(state->base.dev);
 	struct intel_shared_dpll_state *shared_dpll;
 	const enum intel_dpll_id id = pll->info->id;
 
 	shared_dpll = intel_atomic_get_shared_dpll_state(&state->base);
 
-	drm_WARN_ON(&i915->drm, (shared_dpll[id].pipe_mask & BIT(crtc->pipe)) == 0);
-
-	shared_dpll[id].pipe_mask &= ~BIT(crtc->pipe);
-
-	drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] releasing %s\n",
-		    crtc->base.base.id, crtc->base.name, pll->info->name);
+	intel_unreference_shared_dpll_crtc(crtc, pll, &shared_dpll[id]);
 }
 
 static void intel_put_dpll(struct intel_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
index 3854f1b4299ac..ba62eb5d7c517 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
@@ -341,6 +341,9 @@ int intel_reserve_shared_dplls(struct intel_atomic_state *state,
 			       struct intel_encoder *encoder);
 void intel_release_shared_dplls(struct intel_atomic_state *state,
 				struct intel_crtc *crtc);
+void intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
+					const struct intel_shared_dpll *pll,
+					struct intel_shared_dpll_state *shared_dpll_state);
 void icl_set_active_port_dpll(struct intel_crtc_state *crtc_state,
 			      enum icl_port_dpll_id port_dpll_id);
 void intel_update_active_dpll(struct intel_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index eefa4018dc0c2..6e55806bbe066 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -88,13 +88,14 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 	crtc->active = false;
 	crtc->base.enabled = false;
 
-	drm_WARN_ON(&i915->drm,
-		    drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0);
-	crtc_state->uapi.active = false;
-	crtc_state->uapi.connector_mask = 0;
-	crtc_state->uapi.encoder_mask = 0;
+	if (crtc_state->shared_dpll)
+		intel_unreference_shared_dpll_crtc(crtc,
+						   crtc_state->shared_dpll,
+						   &crtc_state->shared_dpll->state);
+
+	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
 	intel_crtc_free_hw_state(crtc_state);
-	memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
+	intel_crtc_state_reset(crtc_state, crtc);
 
 	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
 		encoder->base.crtc = NULL;
-- 
2.37.2

[Intel-gfx] [PATCH v3 04/12] drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()

[Imre Deak]

Split calling the CRTC/encoder disabling hooks and updating the CRTC and
DPLL object states from updating the CRTC and atomic state and other
global state (BW, CDCLK, DBUF) into separate functions. When disabling a
bigjoiner configuration the latter step can be done only after all the
linked pipes are disabled, so this change prepares for that.

No functional changes.

v2:
- Rebased on changes in patch 2.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../drm/i915/display/intel_modeset_setup.c    | 34 +++++++++++++------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 66796e8eef90a..2c93f4c5dc8cf 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -30,23 +30,15 @@
 #include "intel_wm.h"
 #include "skl_watermark.h"
 
-static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
-					struct drm_modeset_acquire_ctx *ctx)
+static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
+					      struct drm_modeset_acquire_ctx *ctx)
 {
-	struct intel_encoder *encoder;
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
-	struct intel_bw_state *bw_state =
-		to_intel_bw_state(i915->display.bw.obj.state);
-	struct intel_cdclk_state *cdclk_state =
-		to_intel_cdclk_state(i915->display.cdclk.obj.state);
-	struct intel_dbuf_state *dbuf_state =
-		to_intel_dbuf_state(i915->display.dbuf.obj.state);
 	struct intel_crtc_state *crtc_state =
 		to_intel_crtc_state(crtc->base.state);
 	struct intel_plane *plane;
 	struct drm_atomic_state *state;
 	struct intel_crtc_state *temp_crtc_state;
-	enum pipe pipe = crtc->pipe;
 	int ret;
 
 	if (!crtc_state->hw.active)
@@ -92,6 +84,21 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 		intel_unreference_shared_dpll_crtc(crtc,
 						   crtc_state->shared_dpll,
 						   &crtc_state->shared_dpll->state);
+}
+
+static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
+{
+	struct intel_encoder *encoder;
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_bw_state *bw_state =
+		to_intel_bw_state(i915->display.bw.obj.state);
+	struct intel_cdclk_state *cdclk_state =
+		to_intel_cdclk_state(i915->display.cdclk.obj.state);
+	struct intel_dbuf_state *dbuf_state =
+		to_intel_dbuf_state(i915->display.dbuf.obj.state);
+	struct intel_crtc_state *crtc_state =
+		to_intel_crtc_state(crtc->base.state);
+	enum pipe pipe = crtc->pipe;
 
 	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
 	intel_crtc_free_hw_state(crtc_state);
@@ -115,6 +122,13 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 	bw_state->num_active_planes[pipe] = 0;
 }
 
+static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
+					struct drm_modeset_acquire_ctx *ctx)
+{
+	intel_crtc_disable_noatomic_begin(crtc, ctx);
+	intel_crtc_disable_noatomic_complete(crtc);
+}
+
 static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
 {
 	struct intel_connector *connector;
-- 
2.37.2

[Intel-gfx] [PATCH v3 05/12] drm/i915: Factor out set_encoder_for_connector()

[Imre Deak]

Factor out a function setting the encoder and CRTC in the connector
atomic state, required by a follow up patch.

No functional changes.

v2:
- Rebased on changes in patch 4.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../drm/i915/display/intel_modeset_setup.c    | 28 +++++++++++++------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 2c93f4c5dc8cf..6f59654ea0261 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -86,6 +86,24 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
 						   &crtc_state->shared_dpll->state);
 }
 
+static void set_encoder_for_connector(struct intel_connector *connector,
+				      struct intel_encoder *encoder)
+{
+	struct drm_connector_state *conn_state = connector->base.state;
+
+	if (conn_state->crtc)
+		drm_connector_put(&connector->base);
+
+	if (encoder) {
+		conn_state->best_encoder = &encoder->base;
+		conn_state->crtc = encoder->base.crtc;
+		drm_connector_get(&connector->base);
+	} else {
+		conn_state->best_encoder = NULL;
+		conn_state->crtc = NULL;
+	}
+}
+
 static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 {
 	struct intel_encoder *encoder;
@@ -140,8 +158,7 @@ static void intel_modeset_update_connector_atomic_state(struct drm_i915_private
 		struct intel_encoder *encoder =
 			to_intel_encoder(connector->base.encoder);
 
-		if (conn_state->crtc)
-			drm_connector_put(&connector->base);
+		set_encoder_for_connector(connector, encoder);
 
 		if (encoder) {
 			struct intel_crtc *crtc =
@@ -149,14 +166,7 @@ static void intel_modeset_update_connector_atomic_state(struct drm_i915_private
 			const struct intel_crtc_state *crtc_state =
 				to_intel_crtc_state(crtc->base.state);
 
-			conn_state->best_encoder = &encoder->base;
-			conn_state->crtc = &crtc->base;
 			conn_state->max_bpc = (crtc_state->pipe_bpp ?: 24) / 3;
-
-			drm_connector_get(&connector->base);
-		} else {
-			conn_state->best_encoder = NULL;
-			conn_state->crtc = NULL;
 		}
 	}
 	drm_connector_list_iter_end(&conn_iter);
-- 
2.37.2

[Intel-gfx] [PATCH v3 06/12] drm/i915: Add support for disabling any CRTCs during HW readout/sanitization

[Imre Deak]

During HW readout/sanitization CRTCs can be disabled only if they don't
have an attached encoder (and so the encoder disable hooks don't need to
be called). An upcoming patch will need to disable CRTCs also with an
attached an encoder, so add support for this.

For bigjoiner configs the encoder disabling hooks require the slave CRTC
states, so add these too to the atomic state. Since the connector atomic
state is already up-to-date when the CRTC is disabled the connector
state needs to be updated (reset) after the CRTC is disabled, make this
so. Follow the proper order of disabling first all bigjoiner slaves,
then any port synced CRTC slaves followed by the CRTC originally
requested to be disabled.

v2:
- Fix calculating the bigjoiner_masters mask in a port sync config,
  (Ville)
- Keep _noatomic suffix in intel_crtc_disable_noatomic(). (Ville)
- Rebase on full CRTC state reset in this patchset, not requiring
  resetting the bigjoiner state separately and (instead) resetting
  the full atomic CRTC and related global state after all linked
  pipes got disabled.
- Disable portsync slaves before a portsync master.
- Disable a portsync master if a linked portsync slave is disabled.

v3: (Ville)
- Use s/u32/u8 for transcoder and pipe masks.
- Use is_power_of_2() instead of hweight()==1.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
 drivers/gpu/drm/i915/display/intel_display.h  |   1 +
 .../drm/i915/display/intel_modeset_setup.c    | 160 ++++++++++++++++--
 3 files changed, 152 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 116fa52290b84..3bf67dfa66f2b 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -225,7 +225,7 @@ is_trans_port_sync_slave(const struct intel_crtc_state *crtc_state)
 	return crtc_state->master_transcoder != INVALID_TRANSCODER;
 }
 
-static bool
+bool
 is_trans_port_sync_master(const struct intel_crtc_state *crtc_state)
 {
 	return crtc_state->sync_mode_slaves_mask != 0;
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index ac95961f68ba7..3ecc5649a73ab 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -407,6 +407,7 @@ intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
 				bool bigjoiner);
 enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port);
 bool is_trans_port_sync_mode(const struct intel_crtc_state *state);
+bool is_trans_port_sync_master(const struct intel_crtc_state *state);
 bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state);
 bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state);
 u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state);
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 6f59654ea0261..75b4dea1e442b 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -38,8 +38,8 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
 		to_intel_crtc_state(crtc->base.state);
 	struct intel_plane *plane;
 	struct drm_atomic_state *state;
-	struct intel_crtc_state *temp_crtc_state;
-	int ret;
+	struct intel_crtc *temp_crtc;
+	enum pipe pipe = crtc->pipe;
 
 	if (!crtc_state->hw.active)
 		return;
@@ -64,10 +64,17 @@ static void intel_crtc_disable_noatomic_begin(struct intel_crtc *crtc,
 	to_intel_atomic_state(state)->internal = true;
 
 	/* Everything's already locked, -EDEADLK can't happen. */
-	temp_crtc_state = intel_atomic_get_crtc_state(state, crtc);
-	ret = drm_atomic_add_affected_connectors(state, &crtc->base);
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
+					 BIT(pipe) |
+					 intel_crtc_bigjoiner_slave_pipes(crtc_state)) {
+		struct intel_crtc_state *temp_crtc_state =
+			intel_atomic_get_crtc_state(state, temp_crtc);
+		int ret;
+
+		ret = drm_atomic_add_affected_connectors(state, &temp_crtc->base);
 
-	drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
+		drm_WARN_ON(&i915->drm, IS_ERR(temp_crtc_state) || ret);
+	}
 
 	i915->display.funcs.display->crtc_disable(to_intel_atomic_state(state), crtc);
 
@@ -104,9 +111,38 @@ static void set_encoder_for_connector(struct intel_connector *connector,
 	}
 }
 
-static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
+static void reset_encoder_connector_state(struct intel_encoder *encoder)
 {
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	struct intel_connector *connector;
+	struct drm_connector_list_iter conn_iter;
+
+	drm_connector_list_iter_begin(&i915->drm, &conn_iter);
+	for_each_intel_connector_iter(connector, &conn_iter) {
+		if (connector->base.encoder != &encoder->base)
+			continue;
+
+		set_encoder_for_connector(connector, NULL);
+
+		connector->base.dpms = DRM_MODE_DPMS_OFF;
+		connector->base.encoder = NULL;
+	}
+	drm_connector_list_iter_end(&conn_iter);
+}
+
+static void reset_crtc_encoder_state(struct intel_crtc *crtc)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_encoder *encoder;
+
+	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder) {
+		reset_encoder_connector_state(encoder);
+		encoder->base.crtc = NULL;
+	}
+}
+
+static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
+{
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_bw_state *bw_state =
 		to_intel_bw_state(i915->display.bw.obj.state);
@@ -122,8 +158,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	intel_crtc_free_hw_state(crtc_state);
 	intel_crtc_state_reset(crtc_state, crtc);
 
-	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
-		encoder->base.crtc = NULL;
+	reset_crtc_encoder_state(crtc);
 
 	intel_fbc_disable(crtc);
 	intel_update_watermarks(i915);
@@ -140,11 +175,116 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	bw_state->num_active_planes[pipe] = 0;
 }
 
+/*
+ * Return all the pipes using a transcoder in @transcoder_mask.
+ * For bigjoiner configs return only the bigjoiner master.
+ */
+static u8 get_transcoder_pipes(struct drm_i915_private *i915,
+			       u8 transcoder_mask)
+{
+	struct intel_crtc *temp_crtc;
+	u8 pipes = 0;
+
+	for_each_intel_crtc(&i915->drm, temp_crtc) {
+		struct intel_crtc_state *temp_crtc_state =
+			to_intel_crtc_state(temp_crtc->base.state);
+
+		if (temp_crtc_state->cpu_transcoder == INVALID_TRANSCODER)
+			continue;
+
+		if (intel_crtc_is_bigjoiner_slave(temp_crtc_state))
+			continue;
+
+		if (transcoder_mask & BIT(temp_crtc_state->cpu_transcoder))
+			pipes |= BIT(temp_crtc->pipe);
+	}
+
+	return pipes;
+}
+
+/*
+ * Return the port sync master and slave pipes linked to @crtc.
+ * For bigjoiner configs return only the bigjoiner master pipes.
+ */
+static void get_portsync_pipes(struct intel_crtc *crtc,
+			       u8 *master_pipe_mask, u8 *slave_pipes_mask)
+{
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	struct intel_crtc_state *crtc_state =
+		to_intel_crtc_state(crtc->base.state);
+	struct intel_crtc *master_crtc;
+	struct intel_crtc_state *master_crtc_state;
+	enum transcoder master_transcoder;
+
+	if (!is_trans_port_sync_mode(crtc_state)) {
+		*master_pipe_mask = BIT(crtc->pipe);
+		*slave_pipes_mask = 0;
+
+		return;
+	}
+
+	if (is_trans_port_sync_master(crtc_state))
+		master_transcoder = crtc_state->cpu_transcoder;
+	else
+		master_transcoder = crtc_state->master_transcoder;
+
+	*master_pipe_mask = get_transcoder_pipes(i915, BIT(master_transcoder));
+	drm_WARN_ON(&i915->drm, !is_power_of_2(*master_pipe_mask));
+
+	master_crtc = intel_crtc_for_pipe(i915, ffs(*master_pipe_mask) - 1);
+	master_crtc_state = to_intel_crtc_state(master_crtc->base.state);
+	*slave_pipes_mask = get_transcoder_pipes(i915, master_crtc_state->sync_mode_slaves_mask);
+}
+
+static u8 get_bigjoiner_slave_pipes(struct drm_i915_private *i915, u8 master_pipes_mask)
+{
+	struct intel_crtc *master_crtc;
+	u8 pipes = 0;
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, master_crtc, master_pipes_mask) {
+		struct intel_crtc_state *master_crtc_state =
+			to_intel_crtc_state(master_crtc->base.state);
+
+		pipes |= intel_crtc_bigjoiner_slave_pipes(master_crtc_state);
+	}
+
+	return pipes;
+}
+
 static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
 					struct drm_modeset_acquire_ctx *ctx)
 {
-	intel_crtc_disable_noatomic_begin(crtc, ctx);
-	intel_crtc_disable_noatomic_complete(crtc);
+	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
+	u8 portsync_master_mask;
+	u8 portsync_slaves_mask;
+	u8 bigjoiner_slaves_mask;
+	struct intel_crtc *temp_crtc;
+
+	/* TODO: Add support for MST */
+	get_portsync_pipes(crtc, &portsync_master_mask, &portsync_slaves_mask);
+	bigjoiner_slaves_mask = get_bigjoiner_slave_pipes(i915,
+							  portsync_master_mask |
+							  portsync_slaves_mask);
+
+	drm_WARN_ON(&i915->drm,
+		    portsync_master_mask & portsync_slaves_mask ||
+		    portsync_master_mask & bigjoiner_slaves_mask ||
+		    portsync_slaves_mask & bigjoiner_slaves_mask);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, bigjoiner_slaves_mask)
+		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_slaves_mask)
+		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc, portsync_master_mask)
+		intel_crtc_disable_noatomic_begin(temp_crtc, ctx);
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, temp_crtc,
+					 bigjoiner_slaves_mask |
+					 portsync_slaves_mask |
+					 portsync_master_mask)
+		intel_crtc_disable_noatomic_complete(temp_crtc);
 }
 
 static void intel_modeset_update_connector_atomic_state(struct drm_i915_private *i915)
-- 
2.37.2

[Intel-gfx] [PATCH v3 07/12] drm/i915/dp: Add link training debug and error printing helpers

[Imre Deak]

Add functions for printing link training debug and error messages, both
to prepare for the next patch, which downgrades an error to a debug
message if the sink is disconnected and to remove some code duplication.

v2: (Ville)
- Always print the connector prefix.
- Preserve the drm_dbg_kms() debug category.
v3:
- Keep printing the name of functions calling the helpers. (Jani)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v2)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../drm/i915/display/intel_dp_link_training.c | 367 ++++++------------
 1 file changed, 120 insertions(+), 247 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index e92c62bcc9b85..4f33b79b23db0 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -26,6 +26,23 @@
 #include "intel_dp.h"
 #include "intel_dp_link_training.h"
 
+#define LT_MSG_PREFIX			"[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] "
+#define LT_MSG_ARGS(_intel_dp, _dp_phy)	(_intel_dp)->attached_connector->base.base.id, \
+					(_intel_dp)->attached_connector->base.name, \
+					dp_to_dig_port(_intel_dp)->base.base.base.id, \
+					dp_to_dig_port(_intel_dp)->base.base.name, \
+					drm_dp_phy_name(_dp_phy)
+
+#define lt_dbg(_intel_dp, _dp_phy, _format, ...) \
+	drm_dbg_kms(&dp_to_i915(_intel_dp)->drm, \
+		    LT_MSG_PREFIX _format, \
+		    LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
+
+#define lt_err(_intel_dp, _dp_phy, _format, ...) \
+	drm_err(&dp_to_i915(_intel_dp)->drm, \
+		LT_MSG_PREFIX _format, \
+		LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
+
 static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
 {
 	memset(intel_dp->lttpr_common_caps, 0, sizeof(intel_dp->lttpr_common_caps));
@@ -47,29 +64,21 @@ static void intel_dp_read_lttpr_phy_caps(struct intel_dp *intel_dp,
 					 const u8 dpcd[DP_RECEIVER_CAP_SIZE],
 					 enum drm_dp_phy dp_phy)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy);
 
 	if (drm_dp_read_lttpr_phy_caps(&intel_dp->aux, dpcd, dp_phy, phy_caps) < 0) {
-		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-			    "[ENCODER:%d:%s][%s] failed to read the PHY caps\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy));
+		lt_dbg(intel_dp, dp_phy, "failed to read the PHY caps\n");
 		return;
 	}
 
-	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-		    "[ENCODER:%d:%s][%s] PHY capabilities: %*ph\n",
-		    encoder->base.base.id, encoder->base.name,
-		    drm_dp_phy_name(dp_phy),
-		    (int)sizeof(intel_dp->lttpr_phy_caps[0]),
-		    phy_caps);
+	lt_dbg(intel_dp, dp_phy, "PHY capabilities: %*ph\n",
+	       (int)sizeof(intel_dp->lttpr_phy_caps[0]),
+	       phy_caps);
 }
 
 static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
 					    const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	int ret;
 
 	ret = drm_dp_read_lttpr_common_caps(&intel_dp->aux, dpcd,
@@ -77,11 +86,9 @@ static bool intel_dp_read_lttpr_common_caps(struct intel_dp *intel_dp,
 	if (ret < 0)
 		goto reset_caps;
 
-	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-		    "[ENCODER:%d:%s] LTTPR common capabilities: %*ph\n",
-		    encoder->base.base.id, encoder->base.name,
-		    (int)sizeof(intel_dp->lttpr_common_caps),
-		    intel_dp->lttpr_common_caps);
+	lt_dbg(intel_dp, DP_PHY_DPRX, "LTTPR common capabilities: %*ph\n",
+	       (int)sizeof(intel_dp->lttpr_common_caps),
+	       intel_dp->lttpr_common_caps);
 
 	/* The minimum value of LT_TUNABLE_PHY_REPEATER_FIELD_DATA_STRUCTURE_REV is 1.4 */
 	if (intel_dp->lttpr_common_caps[0] < 0x14)
@@ -105,8 +112,6 @@ intel_dp_set_lttpr_transparent_mode(struct intel_dp *intel_dp, bool enable)
 
 static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	int lttpr_count;
 	int i;
 
@@ -138,9 +143,8 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
 		return 0;
 
 	if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) {
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n",
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+		       "Switching to LTTPR non-transparent LT mode failed, fall-back to transparent mode\n");
 
 		intel_dp_set_lttpr_transparent_mode(intel_dp, true);
 		intel_dp_reset_lttpr_count(intel_dp);
@@ -409,26 +413,22 @@ intel_dp_get_adjust_train(struct intel_dp *intel_dp,
 			  enum drm_dp_phy dp_phy,
 			  const u8 link_status[DP_LINK_STATUS_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	int lane;
 
 	if (intel_dp_is_uhbr(crtc_state)) {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
-			    "TX FFE request: " TRAIN_REQ_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_REQ_TX_FFE_ARGS(link_status));
+		lt_dbg(intel_dp, dp_phy,
+		       "128b/132b, lanes: %d, "
+		       "TX FFE request: " TRAIN_REQ_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_REQ_TX_FFE_ARGS(link_status));
 	} else {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
-			    "vswing request: " TRAIN_REQ_FMT ", "
-			    "pre-emphasis request: " TRAIN_REQ_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_REQ_VSWING_ARGS(link_status),
-			    TRAIN_REQ_PREEMPH_ARGS(link_status));
+		lt_dbg(intel_dp, dp_phy,
+		       "8b/10b, lanes: %d, "
+		       "vswing request: " TRAIN_REQ_FMT ", "
+		       "pre-emphasis request: " TRAIN_REQ_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_REQ_VSWING_ARGS(link_status),
+		       TRAIN_REQ_PREEMPH_ARGS(link_status));
 	}
 
 	for (lane = 0; lane < 4; lane++)
@@ -487,16 +487,11 @@ intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
 				       enum drm_dp_phy dp_phy,
 				       u8 dp_train_pat)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 train_pat = intel_dp_training_pattern_symbol(dp_train_pat);
 
 	if (train_pat != DP_TRAINING_PATTERN_DISABLE)
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s][%s] Using DP training pattern TPS%c\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    dp_training_pattern_name(train_pat));
+		lt_dbg(intel_dp, dp_phy, "Using DP training pattern TPS%c\n",
+		       dp_training_pattern_name(train_pat));
 
 	intel_dp->set_link_train(intel_dp, crtc_state, dp_train_pat);
 }
@@ -531,24 +526,21 @@ void intel_dp_set_signal_levels(struct intel_dp *intel_dp,
 				enum drm_dp_phy dp_phy)
 {
 	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 
 	if (intel_dp_is_uhbr(crtc_state)) {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 128b/132b, lanes: %d, "
-			    "TX FFE presets: " TRAIN_SET_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
+		lt_dbg(intel_dp, dp_phy,
+		       "128b/132b, lanes: %d, "
+		       "TX FFE presets: " TRAIN_SET_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_SET_TX_FFE_ARGS(intel_dp->train_set));
 	} else {
-		drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s][%s] 8b/10b, lanes: %d, "
-			    "vswing levels: " TRAIN_SET_FMT ", "
-			    "pre-emphasis levels: " TRAIN_SET_FMT "\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy),
-			    crtc_state->lane_count,
-			    TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
-			    TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
+		lt_dbg(intel_dp, dp_phy,
+		       "8b/10b, lanes: %d, "
+		       "vswing levels: " TRAIN_SET_FMT ", "
+		       "pre-emphasis levels: " TRAIN_SET_FMT "\n",
+		       crtc_state->lane_count,
+		       TRAIN_SET_VSWING_ARGS(intel_dp->train_set),
+		       TRAIN_SET_PREEMPH_ARGS(intel_dp->train_set));
 	}
 
 	if (intel_dp_phy_is_downstream_of_source(intel_dp, dp_phy))
@@ -677,8 +669,6 @@ static bool
 intel_dp_prepare_link_train(struct intel_dp *intel_dp,
 			    const struct intel_crtc_state *crtc_state)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 link_bw, rate_select;
 
 	if (intel_dp->prepare_link_retrain)
@@ -699,24 +689,21 @@ intel_dp_prepare_link_train(struct intel_dp *intel_dp,
 	 * link rates are not stable.
 	 */
 	if (!link_bw) {
-		struct intel_connector *connector = intel_dp->attached_connector;
 		__le16 sink_rates[DP_MAX_SUPPORTED_RATES];
 
-		drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Reloading eDP link rates\n",
-			    connector->base.base.id, connector->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Reloading eDP link rates\n");
 
 		drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES,
 				 sink_rates, sizeof(sink_rates));
 	}
 
 	if (link_bw)
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] Using LINK_BW_SET value %02x\n",
-			    encoder->base.base.id, encoder->base.name, link_bw);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Using LINK_BW_SET value %02x\n",
+		       link_bw);
 	else
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] Using LINK_RATE_SET value %02x\n",
-			    encoder->base.base.id, encoder->base.name, rate_select);
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+		       "Using LINK_RATE_SET value %02x\n",
+		       rate_select);
 	/*
 	 * Spec DP2.1 Section 3.5.2.16
 	 * Prior to LT DPTX should set 128b/132b DP Channel coding and then set link rate
@@ -758,15 +745,10 @@ void
 intel_dp_dump_link_status(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy,
 			  const u8 link_status[DP_LINK_STATUS_SIZE])
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-
-	drm_dbg_kms(&i915->drm,
-		    "[ENCODER:%d:%s][%s] ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
-		    encoder->base.base.id, encoder->base.name,
-		    drm_dp_phy_name(dp_phy),
-		    link_status[0], link_status[1], link_status[2],
-		    link_status[3], link_status[4], link_status[5]);
+	lt_dbg(intel_dp, dp_phy,
+	       "ln0_1:0x%x ln2_3:0x%x align:0x%x sink:0x%x adj_req0_1:0x%x adj_req2_3:0x%x\n",
+	       link_status[0], link_status[1], link_status[2],
+	       link_status[3], link_status[4], link_status[5]);
 }
 
 /*
@@ -778,8 +760,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 				      const struct intel_crtc_state *crtc_state,
 				      enum drm_dp_phy dp_phy)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 old_link_status[DP_LINK_STATUS_SIZE] = {};
 	int voltage_tries, cr_tries, max_cr_tries;
 	u8 link_status[DP_LINK_STATUS_SIZE];
@@ -794,9 +774,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 	if (!intel_dp_reset_link_train(intel_dp, crtc_state, dp_phy,
 				       DP_TRAINING_PATTERN_1 |
 				       DP_LINK_SCRAMBLING_DISABLE)) {
-		drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to enable link training\n",
-			encoder->base.base.id, encoder->base.name,
-			drm_dp_phy_name(dp_phy));
+		lt_err(intel_dp, dp_phy, "Failed to enable link training\n");
 		return false;
 	}
 
@@ -819,35 +797,24 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 
 		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
 						     link_status) < 0) {
-			drm_err(&i915->drm, "[ENCODER:%d:%s][%s] Failed to get link status\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
 			return false;
 		}
 
 		if (drm_dp_clock_recovery_ok(link_status, crtc_state->lane_count)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Clock recovery OK\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Clock recovery OK\n");
 			return true;
 		}
 
 		if (voltage_tries == 5) {
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Same voltage tried 5 times\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Same voltage tried 5 times\n");
 			return false;
 		}
 
 		if (max_vswing_reached) {
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Max Voltage Swing reached\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Max Voltage Swing reached\n");
 			return false;
 		}
 
@@ -855,10 +822,7 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
 					  link_status);
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s][%s] Failed to update link training\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
 			return false;
 		}
 
@@ -874,10 +838,8 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp,
 	}
 
 	intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-	drm_err(&i915->drm,
-		"[ENCODER:%d:%s][%s] Failed clock recovery %d times, giving up!\n",
-		encoder->base.base.id, encoder->base.name,
-		drm_dp_phy_name(dp_phy), max_cr_tries);
+	lt_err(intel_dp, dp_phy, "Failed clock recovery %d times, giving up!\n",
+	       max_cr_tries);
 
 	return false;
 }
@@ -911,11 +873,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
 		return DP_TRAINING_PATTERN_4;
 	} else if (crtc_state->port_clock == 810000) {
 		if (!source_tps4)
-			drm_dbg_kms(&i915->drm,
-				    "8.1 Gbps link rate without source TPS4 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       "8.1 Gbps link rate without source TPS4 support\n");
 		if (!sink_tps4)
-			drm_dbg_kms(&i915->drm,
-				    "8.1 Gbps link rate without sink TPS4 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       "8.1 Gbps link rate without sink TPS4 support\n");
 	}
 
 	/*
@@ -929,11 +891,11 @@ static u32 intel_dp_training_pattern(struct intel_dp *intel_dp,
 		return  DP_TRAINING_PATTERN_3;
 	} else if (crtc_state->port_clock >= 540000) {
 		if (!source_tps3)
-			drm_dbg_kms(&i915->drm,
-				    ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       ">=5.4/6.48 Gbps link rate without source TPS3 support\n");
 		if (!sink_tps3)
-			drm_dbg_kms(&i915->drm,
-				    ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
+			lt_dbg(intel_dp, dp_phy,
+			       ">=5.4/6.48 Gbps link rate without sink TPS3 support\n");
 	}
 
 	return DP_TRAINING_PATTERN_2;
@@ -949,8 +911,6 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 					    const struct intel_crtc_state *crtc_state,
 					    enum drm_dp_phy dp_phy)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	int tries;
 	u32 training_pattern;
 	u8 link_status[DP_LINK_STATUS_SIZE];
@@ -969,10 +929,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 	/* channel equalization */
 	if (!intel_dp_set_link_train(intel_dp, crtc_state, dp_phy,
 				     training_pattern)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s][%s] Failed to start channel equalization\n",
-			encoder->base.base.id, encoder->base.name,
-			drm_dp_phy_name(dp_phy));
+		lt_err(intel_dp, dp_phy, "Failed to start channel equalization\n");
 		return false;
 	}
 
@@ -981,10 +938,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 
 		if (drm_dp_dpcd_read_phy_link_status(&intel_dp->aux, dp_phy,
 						     link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s][%s] Failed to get link status\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to get link status\n");
 			break;
 		}
 
@@ -992,21 +946,15 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 		if (!drm_dp_clock_recovery_ok(link_status,
 					      crtc_state->lane_count)) {
 			intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Clock recovery check failed, cannot "
-				    "continue channel equalization\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy,
+			       "Clock recovery check failed, cannot continue channel equalization\n");
 			break;
 		}
 
 		if (drm_dp_channel_eq_ok(link_status,
 					 crtc_state->lane_count)) {
 			channel_eq = true;
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s][%s] Channel EQ done. DP Training successful\n",
-				    encoder->base.base.id, encoder->base.name,
-				    drm_dp_phy_name(dp_phy));
+			lt_dbg(intel_dp, dp_phy, "Channel EQ done. DP Training successful\n");
 			break;
 		}
 
@@ -1014,10 +962,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 		intel_dp_get_adjust_train(intel_dp, crtc_state, dp_phy,
 					  link_status);
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, dp_phy)) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s][%s] Failed to update link training\n",
-				encoder->base.base.id, encoder->base.name,
-				drm_dp_phy_name(dp_phy));
+			lt_err(intel_dp, dp_phy, "Failed to update link training\n");
 			break;
 		}
 	}
@@ -1025,10 +970,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp,
 	/* Try 5 times, else fail and try at lower BW */
 	if (tries == 5) {
 		intel_dp_dump_link_status(intel_dp, dp_phy, link_status);
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s][%s] Channel equalization failed 5 times\n",
-			    encoder->base.base.id, encoder->base.name,
-			    drm_dp_phy_name(dp_phy));
+		lt_dbg(intel_dp, dp_phy, "Channel equalization failed 5 times\n");
 	}
 
 	return channel_eq;
@@ -1047,13 +989,12 @@ static int
 intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
 			    const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	u8 sink_status;
 	int ret;
 
 	ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_SINK_STATUS, &sink_status);
 	if (ret != 1) {
-		drm_dbg_kms(&i915->drm, "Failed to read sink status\n");
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Failed to read sink status\n");
 		return ret < 0 ? ret : -EIO;
 	}
 
@@ -1079,9 +1020,6 @@ intel_dp_128b132b_intra_hop(struct intel_dp *intel_dp,
 void intel_dp_stop_link_train(struct intel_dp *intel_dp,
 			      const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-
 	intel_dp->link_trained = true;
 
 	intel_dp_disable_dpcd_training_pattern(intel_dp, DP_PHY_DPRX);
@@ -1090,9 +1028,7 @@ void intel_dp_stop_link_train(struct intel_dp *intel_dp,
 
 	if (intel_dp_is_uhbr(crtc_state) &&
 	    wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
-		drm_dbg_kms(&i915->drm,
-			    "[ENCODER:%d:%s] 128b/132b intra-hop not clearing\n",
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clearing\n");
 	}
 }
 
@@ -1101,8 +1037,6 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
 			const struct intel_crtc_state *crtc_state,
 			enum drm_dp_phy dp_phy)
 {
-	struct intel_connector *connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	bool ret = false;
 
 	if (!intel_dp_link_training_clock_recovery(intel_dp, crtc_state, dp_phy))
@@ -1114,13 +1048,10 @@ intel_dp_link_train_phy(struct intel_dp *intel_dp,
 	ret = true;
 
 out:
-	drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-		    "[CONNECTOR:%d:%s][ENCODER:%d:%s][%s] Link Training %s at link rate = %d, lane count = %d\n",
-		    connector->base.base.id, connector->base.name,
-		    encoder->base.base.id, encoder->base.name,
-		    drm_dp_phy_name(dp_phy),
-		    ret ? "passed" : "failed",
-		    crtc_state->port_clock, crtc_state->lane_count);
+	lt_dbg(intel_dp, dp_phy,
+	       "Link Training %s at link rate = %d, lane count = %d\n",
+	       ret ? "passed" : "failed",
+	       crtc_state->port_clock, crtc_state->lane_count);
 
 	return ret;
 }
@@ -1129,13 +1060,10 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
 						     const struct intel_crtc_state *crtc_state)
 {
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 
 	if (intel_dp->hobl_active) {
-		drm_dbg_kms(&dp_to_i915(intel_dp)->drm,
-			    "[ENCODER:%d:%s] Link Training failed with HOBL active, "
-			    "not enabling it from now on",
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX,
+		       "Link Training failed with HOBL active, not enabling it from now on\n");
 		intel_dp->hobl_failed = true;
 	} else if (intel_dp_get_link_train_fallback_values(intel_dp,
 							   crtc_state->port_clock,
@@ -1182,8 +1110,6 @@ static bool
 intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 			  const struct intel_crtc_state *crtc_state)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	int delay_us;
 	int try, max_tries = 20;
@@ -1198,9 +1124,7 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 	 */
 	if (!intel_dp_reset_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
 				       DP_TRAINING_PATTERN_1)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to start 128b/132b TPS1\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS1\n");
 		return false;
 	}
 
@@ -1208,27 +1132,21 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 
 	/* Read the initial TX FFE settings. */
 	if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to read TX FFE presets\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to read TX FFE presets\n");
 		return false;
 	}
 
 	/* Update signal levels and training set as requested. */
 	intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
 	if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to set initial TX FFE settings\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to set initial TX FFE settings\n");
 		return false;
 	}
 
 	/* Start transmitting 128b/132b TPS2. */
 	if (!intel_dp_set_link_train(intel_dp, crtc_state, DP_PHY_DPRX,
 				     DP_TRAINING_PATTERN_2)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2\n");
 		return false;
 	}
 
@@ -1245,32 +1163,25 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 		delay_us = drm_dp_128b132b_read_aux_rd_interval(&intel_dp->aux);
 
 		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to read link status\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_link_training_failed(link_status)) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Downstream link training failure\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX,
+			       "Downstream link training failure\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_lane_channel_eq_done(link_status, crtc_state->lane_count)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s] Lane channel eq done\n",
-				    encoder->base.base.id, encoder->base.name);
+			lt_dbg(intel_dp, DP_PHY_DPRX, "Lane channel eq done\n");
 			break;
 		}
 
 		if (timeout) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Lane channel eq timeout\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Lane channel eq timeout\n");
 			return false;
 		}
 
@@ -1280,18 +1191,14 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 		/* Update signal levels and training set as requested. */
 		intel_dp_get_adjust_train(intel_dp, crtc_state, DP_PHY_DPRX, link_status);
 		if (!intel_dp_update_link_train(intel_dp, crtc_state, DP_PHY_DPRX)) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to update TX FFE settings\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to update TX FFE settings\n");
 			return false;
 		}
 	}
 
 	if (try == max_tries) {
 		intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Max loop count reached\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Max loop count reached\n");
 		return false;
 	}
 
@@ -1300,32 +1207,24 @@ intel_dp_128b132b_lane_eq(struct intel_dp *intel_dp,
 			timeout = true; /* try one last time after deadline */
 
 		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to read link status\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_link_training_failed(link_status)) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Downstream link training failure\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_eq_interlane_align_done(link_status)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s] Interlane align done\n",
-				    encoder->base.base.id, encoder->base.name);
+			lt_dbg(intel_dp, DP_PHY_DPRX, "Interlane align done\n");
 			break;
 		}
 
 		if (timeout) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Interlane align timeout\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Interlane align timeout\n");
 			return false;
 		}
 
@@ -1343,16 +1242,12 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
 			   const struct intel_crtc_state *crtc_state,
 			   int lttpr_count)
 {
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
-	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
 	u8 link_status[DP_LINK_STATUS_SIZE];
 	unsigned long deadline;
 
 	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_TRAINING_PATTERN_SET,
 			       DP_TRAINING_PATTERN_2_CDS) != 1) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] Failed to start 128b/132b TPS2 CDS\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "Failed to start 128b/132b TPS2 CDS\n");
 		return false;
 	}
 
@@ -1368,34 +1263,26 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
 		usleep_range(2000, 3000);
 
 		if (drm_dp_dpcd_read_link_status(&intel_dp->aux, link_status) < 0) {
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Failed to read link status\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Failed to read link status\n");
 			return false;
 		}
 
 		if (drm_dp_128b132b_eq_interlane_align_done(link_status) &&
 		    drm_dp_128b132b_cds_interlane_align_done(link_status) &&
 		    drm_dp_128b132b_lane_symbol_locked(link_status, crtc_state->lane_count)) {
-			drm_dbg_kms(&i915->drm,
-				    "[ENCODER:%d:%s] CDS interlane align done\n",
-				    encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "CDS interlane align done\n");
 			break;
 		}
 
 		if (drm_dp_128b132b_link_training_failed(link_status)) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] Downstream link training failure\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "Downstream link training failure\n");
 			return false;
 		}
 
 		if (timeout) {
 			intel_dp_dump_link_status(intel_dp, DP_PHY_DPRX, link_status);
-			drm_err(&i915->drm,
-				"[ENCODER:%d:%s] CDS timeout\n",
-				encoder->base.base.id, encoder->base.name);
+			lt_err(intel_dp, DP_PHY_DPRX, "CDS timeout\n");
 			return false;
 		}
 	}
@@ -1411,15 +1298,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
 			     const struct intel_crtc_state *crtc_state,
 			     int lttpr_count)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	struct intel_connector *connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	bool passed = false;
 
 	if (wait_for(intel_dp_128b132b_intra_hop(intel_dp, crtc_state) == 0, 500)) {
-		drm_err(&i915->drm,
-			"[ENCODER:%d:%s] 128b/132b intra-hop not clear\n",
-			encoder->base.base.id, encoder->base.name);
+		lt_err(intel_dp, DP_PHY_DPRX, "128b/132b intra-hop not clear\n");
 		return false;
 	}
 
@@ -1427,12 +1309,10 @@ intel_dp_128b132b_link_train(struct intel_dp *intel_dp,
 	    intel_dp_128b132b_lane_cds(intel_dp, crtc_state, lttpr_count))
 		passed = true;
 
-	drm_dbg_kms(&i915->drm,
-		    "[CONNECTOR:%d:%s][ENCODER:%d:%s] 128b/132b Link Training %s at link rate = %d, lane count = %d\n",
-		    connector->base.base.id, connector->base.name,
-		    encoder->base.base.id, encoder->base.name,
-		    passed ? "passed" : "failed",
-		    crtc_state->port_clock, crtc_state->lane_count);
+	lt_dbg(intel_dp, DP_PHY_DPRX,
+	       "128b/132b Link Training %s at link rate = %d, lane count = %d\n",
+	       passed ? "passed" : "failed",
+	       crtc_state->port_clock, crtc_state->lane_count);
 
 	return passed;
 }
@@ -1451,8 +1331,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
 			       const struct intel_crtc_state *crtc_state)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-	struct intel_connector *connector = intel_dp->attached_connector;
-	struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
 	bool passed;
 
 	/*
@@ -1485,10 +1363,7 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
 	 * ignore_long_hpd flag can unset from the testcase.
 	 */
 	if (!passed && i915->display.hotplug.ignore_long_hpd) {
-		drm_dbg_kms(&i915->drm,
-			    "[CONNECTOR:%d:%s][ENCODER:%d:%s] Ignore the link failure\n",
-			    connector->base.base.id, connector->base.name,
-			    encoder->base.base.id, encoder->base.name);
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Ignore the link failure\n");
 		return;
 	}
 
@@ -1499,8 +1374,6 @@ void intel_dp_start_link_train(struct intel_dp *intel_dp,
 void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
 				 const struct intel_crtc_state *crtc_state)
 {
-	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
-
 	/*
 	 * VIDEO_DIP_CTL register bit 31 should be set to '0' to not
 	 * disable SDP CRC. This is applicable for Display version 13.
@@ -1513,5 +1386,5 @@ void intel_dp_128b132b_sdp_crc16(struct intel_dp *intel_dp,
 				   DP_SDP_ERROR_DETECTION_CONFIGURATION,
 				   DP_SDP_CRC16_128B132B_EN);
 
-	drm_dbg_kms(&i915->drm, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
+	lt_dbg(intel_dp, DP_PHY_DPRX, "DP2.0 SDP CRC16 for 128b/132b enabled\n");
 }
-- 
2.37.2

[Intel-gfx] [PATCH v3 08/12] drm/i915/dp: Convert link training error to debug message on disconnected sink

[Imre Deak]

If a sink is disconnected it's expected that link training actions will
fail on it, so downgrade the error messages about such actions to be a
debug message. Such - expected - link training failures are more
frequent after a follow up patch, after which an active TypeC link is
reset after the sink is disconnected which also involves a link
training.

v2:
- Check the actual HPD state to handle the forced connector state case.
  (Vinod)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 .../gpu/drm/i915/display/intel_dp_link_training.c    | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 4f33b79b23db0..51d1e4b4b2f19 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -38,10 +38,14 @@
 		    LT_MSG_PREFIX _format, \
 		    LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
 
-#define lt_err(_intel_dp, _dp_phy, _format, ...) \
-	drm_err(&dp_to_i915(_intel_dp)->drm, \
-		LT_MSG_PREFIX _format, \
-		LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
+#define lt_err(_intel_dp, _dp_phy, _format, ...) do { \
+	if (intel_digital_port_connected(&dp_to_dig_port(_intel_dp)->base)) \
+		drm_err(&dp_to_i915(_intel_dp)->drm, \
+			LT_MSG_PREFIX _format, \
+			LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__); \
+	else \
+		lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \
+} while (0)
 
 static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
 {
-- 
2.37.2

[Intel-gfx] [PATCH v3 09/12] drm/i915/dp: Prevent link training fallback on disconnected port

[Imre Deak]

Prevent downgrading the link training maximum lane count/rate if the
sink is disconnected - and so the link training failure is expected. In
such cases modeset failures due to the reduced max link params would be
just confusing for user space (instead of which the correct thing it
should act on is the sink disconnect signaled by a hotplug event,
requiring a disabling modeset).

v2:
- Check the actual HPD state to handle the forced connector state case.
  (Vinod)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 51d1e4b4b2f19..0952a707358c1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -1065,6 +1065,11 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp *intel_dp,
 {
 	struct intel_connector *intel_connector = intel_dp->attached_connector;
 
+	if (!intel_digital_port_connected(&dp_to_dig_port(intel_dp)->base)) {
+		lt_dbg(intel_dp, DP_PHY_DPRX, "Link Training failed on disconnected sink.\n");
+		return;
+	}
+
 	if (intel_dp->hobl_active) {
 		lt_dbg(intel_dp, DP_PHY_DPRX,
 		       "Link Training failed with HOBL active, not enabling it from now on\n");
-- 
2.37.2

[Intel-gfx] [PATCH v3 12/12] drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects

[Imre Deak]

If the output on a DP-alt link with its sink disconnected is kept
enabled for too long (about 20 sec), then some IOM/TCSS firmware timeout
will cause havoc on the PCI bus, at least for other GFX devices on it
which will stop powering up. Since user space is not guaranteed to do a
disabling modeset in time, switch such disconnected but active links to
TBT mode - which is without such shortcomings - with a 2 second delay.

If the above condition is detected already during the driver load/system
resume sanitization step disable the output instead, as at that point no
user space or kernel client depends on a consistent output state yet and
because subsequent atomic modeset on such connectors - without the
actual sink capabilities available - can fail.

An active/disconnected port as above will also block the HPD status of
other active/disconnected ports to get updated (stuck in the connected
state), until the former port is disabled, its PHY is disconnected and
a ~10 ms delay has elapsed. This means the link state for all TypeC
ports/CRTCs must be rechecked after a CRTC is disabled due to the above
reason. For this disconnect the PHY synchronously after the CRTC/port is
disabled and recheck all CRTCs for the above condition whenever such a
port is disabled.

To account for a race condition during driver loading where the sink is
disconnected after the above sanitization step and before the HPD
interrupts get enabled, do an explicit check/link reset if needed from
the encoder's late_register hook, which is called after the HPD
interrupts are enabled already.

v2:
- Handle an active/disconnected port blocking the HPD state update of
  another active/disconnected port.
- Cancel the delayed work resetting the link also from the encoder
  enable/suspend/shutdown hooks.
- Rebase on the earlier intel_modeset_lock_ctx_retry() addition,
  fixing here the missed atomic state reset in case of a retry.
- Fix handling of an error return from intel_atomic_get_crtc_state().
- Recheck if the port needs to be reset after all the atomic state
  is locked and async commits are waited on.

v3:
- Add intel_crtc_needs_link_reset(), instead of open-coding it,
  keep intel_crtc_has_encoders(). (Ville)
- Fix state dumping and use a bitmask to track disabled CRTCs in
  intel_sanitize_all_crtcs(). (Ville)
- Set internal in intel_atomic_state right after allocating it.
  (Ville)
- Recheck all CRTCs (not yet force-disabled) after a CRTC is
  force-disabled for any reason (not only due to a link state)
  in intel_sanitize_all_crtcs().
- Reduce delay after CRTC disabling to 20ms, and use the simpler
  msleep().
- Clarify code comment about HPD behaviour in
  intel_sanitize_all_crtcs().
- Move all the TC link reset logic to intel_tc.c .
- Cancel the link reset work synchronously during system suspend,
  driver unload and shutdown.

Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c      |  32 +++-
 .../drm/i915/display/intel_display_driver.c   |   5 +
 .../drm/i915/display/intel_display_driver.h   |   2 +
 drivers/gpu/drm/i915/display/intel_dp.c       |   6 +-
 drivers/gpu/drm/i915/display/intel_dp.h       |   3 +
 .../drm/i915/display/intel_modeset_setup.c    |  85 +++++++--
 drivers/gpu/drm/i915/display/intel_tc.c       | 164 +++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_tc.h       |   5 +-
 8 files changed, 277 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 813be957ed11b..ba56c705ad64f 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3313,6 +3313,8 @@ static void intel_disable_ddi(struct intel_atomic_state *state,
 			      const struct intel_crtc_state *old_crtc_state,
 			      const struct drm_connector_state *old_conn_state)
 {
+	intel_tc_port_link_cancel_reset_work(enc_to_dig_port(encoder));
+
 	intel_hdcp_disable(to_intel_connector(old_conn_state->connector));
 
 	if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
@@ -3381,6 +3383,8 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 	bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
 
+	intel_tc_port_link_cancel_reset_work(dig_port);
+
 	if (is_tc_port) {
 		struct intel_crtc *master_crtc =
 			to_intel_crtc(crtc_state->uapi.crtc);
@@ -4232,9 +4236,19 @@ static void intel_ddi_encoder_reset(struct drm_encoder *encoder)
 		intel_tc_port_init_mode(dig_port);
 }
 
+static int intel_ddi_encoder_late_register(struct drm_encoder *_encoder)
+{
+	struct intel_encoder *encoder = to_intel_encoder(_encoder);
+
+	intel_tc_port_link_reset(enc_to_dig_port(encoder));
+
+	return 0;
+}
+
 static const struct drm_encoder_funcs intel_ddi_funcs = {
 	.reset = intel_ddi_encoder_reset,
 	.destroy = intel_ddi_encoder_destroy,
+	.late_register = intel_ddi_encoder_late_register,
 };
 
 static struct intel_connector *
@@ -4404,14 +4418,16 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
 
 	state = intel_encoder_hotplug(encoder, connector);
 
-	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
-		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
-			ret = intel_hdmi_reset_link(encoder, &ctx);
-		else
-			ret = intel_dp_retrain_link(encoder, &ctx);
-	}
+	if (!intel_tc_port_link_reset(dig_port)) {
+		intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
+			if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
+				ret = intel_hdmi_reset_link(encoder, &ctx);
+			else
+				ret = intel_dp_retrain_link(encoder, &ctx);
+		}
 
-	drm_WARN_ON(encoder->base.dev, ret);
+		drm_WARN_ON(encoder->base.dev, ret);
+	}
 
 	/*
 	 * Unpowered type-c dongles can take some time to boot and be
@@ -4627,7 +4643,7 @@ static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
 	if (!intel_phy_is_tc(i915, phy))
 		return;
 
-	intel_tc_port_flush_work(dig_port);
+	intel_tc_port_suspend(dig_port);
 }
 
 static void intel_ddi_encoder_shutdown(struct intel_encoder *encoder)
diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
index 60ce10fc72058..b62cf9d751011 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -505,6 +505,11 @@ int intel_display_driver_suspend(struct drm_i915_private *i915)
 	return ret;
 }
 
+bool intel_display_driver_is_suspended(struct drm_i915_private *i915)
+{
+	return i915->display.restore.modeset_state;
+}
+
 int
 __intel_display_driver_resume(struct drm_i915_private *i915,
 			      struct drm_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.h b/drivers/gpu/drm/i915/display/intel_display_driver.h
index c276a58ee3293..9dcd9d5b2b1c7 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.h
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.h
@@ -32,5 +32,7 @@ int __intel_display_driver_resume(struct drm_i915_private *i915,
 				  struct drm_atomic_state *state,
 				  struct drm_modeset_acquire_ctx *ctx);
 
+bool intel_display_driver_is_suspended(struct drm_i915_private *i915);
+
 #endif /* __INTEL_DISPLAY_DRIVER_H__ */
 
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 99ceaa7d90b62..9a13ec09755fc 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4231,9 +4231,9 @@ static bool intel_dp_has_connector(struct intel_dp *intel_dp,
 	return false;
 }
 
-static int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
-				     struct drm_modeset_acquire_ctx *ctx,
-				     u8 *pipe_mask)
+int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
+			      struct drm_modeset_acquire_ctx *ctx,
+			      u8 *pipe_mask)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
 	struct drm_connector_list_iter conn_iter;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index ef39e4f7a329e..5f86157a10d2d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -42,6 +42,9 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
 			      int link_rate, int lane_count);
 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
 					    int link_rate, u8 lane_count);
+int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
+			      struct drm_modeset_acquire_ctx *ctx,
+			      u8 *pipe_mask);
 int intel_dp_retrain_link(struct intel_encoder *encoder,
 			  struct drm_modeset_acquire_ctx *ctx);
 void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 75b4dea1e442b..85f6401b8c709 100644
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -26,6 +26,7 @@
 #include "intel_fifo_underrun.h"
 #include "intel_modeset_setup.h"
 #include "intel_pch_display.h"
+#include "intel_tc.h"
 #include "intel_vblank.h"
 #include "intel_wm.h"
 #include "skl_watermark.h"
@@ -379,6 +380,21 @@ static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
 	return false;
 }
 
+static bool intel_crtc_needs_link_reset(struct intel_crtc *crtc)
+{
+	struct drm_device *dev = crtc->base.dev;
+	struct intel_encoder *encoder;
+
+	for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
+		struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+
+		if (dig_port && intel_tc_port_link_needs_reset(dig_port))
+			return true;
+	}
+
+	return false;
+}
+
 static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
@@ -421,11 +437,12 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state
 					   !HAS_GMCH(i915));
 }
 
-static void intel_sanitize_crtc(struct intel_crtc *crtc,
+static bool intel_sanitize_crtc(struct intel_crtc *crtc,
 				struct drm_modeset_acquire_ctx *ctx)
 {
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
+	bool needs_link_reset;
 
 	if (crtc_state->hw.active) {
 		struct intel_plane *plane;
@@ -445,13 +462,65 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
 		intel_color_commit_arm(crtc_state);
 	}
 
+	if (!crtc_state->hw.active ||
+	    intel_crtc_is_bigjoiner_slave(crtc_state))
+		return false;
+
+	needs_link_reset = intel_crtc_needs_link_reset(crtc);
+
 	/*
 	 * Adjust the state of the output pipe according to whether we have
 	 * active connectors/encoders.
 	 */
-	if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) &&
-	    !intel_crtc_is_bigjoiner_slave(crtc_state))
-		intel_crtc_disable_noatomic(crtc, ctx);
+	if (!needs_link_reset && intel_crtc_has_encoders(crtc))
+		return false;
+
+	intel_crtc_disable_noatomic(crtc, ctx);
+
+	/*
+	 * The HPD state on other active/disconnected TC ports may be stuck in
+	 * the connected state until this port is disabled and a ~10ms delay has
+	 * passed, wait here for that so that sanitizing other CRTCs will see the
+	 * up-to-date HPD state.
+	 */
+	if (needs_link_reset)
+		msleep(20);
+
+	return true;
+}
+
+static void intel_sanitize_all_crtcs(struct drm_i915_private *i915,
+				     struct drm_modeset_acquire_ctx *ctx)
+{
+	struct intel_crtc *crtc;
+	u8 crtcs_forced_off = 0;
+
+	/*
+	 * An active and disconnected TypeC port prevents the HPD live state
+	 * to get updated on other active/disconnected TypeC ports, so after
+	 * a port gets disabled the CRTCs using other TypeC ports must be
+	 * rechecked wrt. their link status.
+	 */
+	for (;;) {
+		u8 old_mask = crtcs_forced_off;
+
+		for_each_intel_crtc(&i915->drm, crtc) {
+			if (BIT(crtc->pipe) & crtcs_forced_off)
+				continue;
+
+			if (intel_sanitize_crtc(crtc, ctx))
+				crtcs_forced_off |= BIT(crtc->pipe);
+		}
+		if (crtcs_forced_off == old_mask)
+			break;
+	}
+
+	for_each_intel_crtc(&i915->drm, crtc) {
+		struct intel_crtc_state *crtc_state =
+			to_intel_crtc_state(crtc->base.state);
+
+		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
+	}
 }
 
 static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
@@ -871,13 +940,7 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
 	 */
 	intel_modeset_update_connector_atomic_state(i915);
 
-	for_each_intel_crtc(&i915->drm, crtc) {
-		struct intel_crtc_state *crtc_state =
-			to_intel_crtc_state(crtc->base.state);
-
-		intel_sanitize_crtc(crtc, ctx);
-		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
-	}
+	intel_sanitize_all_crtcs(i915, ctx);
 
 	intel_dpll_sanitize_state(i915);
 
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 4fca711a58bce..f0fde20158c0b 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -5,15 +5,19 @@
 
 #include "i915_drv.h"
 #include "i915_reg.h"
+#include "intel_atomic.h"
 #include "intel_cx0_phy_regs.h"
 #include "intel_ddi.h"
 #include "intel_de.h"
 #include "intel_display.h"
+#include "intel_display_driver.h"
 #include "intel_display_power_map.h"
 #include "intel_display_types.h"
 #include "intel_dkl_phy_regs.h"
+#include "intel_dp.h"
 #include "intel_dp_mst.h"
 #include "intel_mg_phy_regs.h"
+#include "intel_modeset_lock.h"
 #include "intel_tc.h"
 
 #define DP_PIN_ASSIGNMENT_C	0x3
@@ -51,6 +55,7 @@ struct intel_tc_port {
 	enum intel_display_power_domain lock_power_domain;
 #endif
 	struct delayed_work disconnect_phy_work;
+	struct delayed_work link_reset_work;
 	int link_refcount;
 	bool legacy_port:1;
 	char port_name[8];
@@ -1572,6 +1577,143 @@ bool intel_tc_port_connected(struct intel_encoder *encoder)
 	return is_connected;
 }
 
+static bool __intel_tc_port_link_needs_reset(struct intel_tc_port *tc)
+{
+	bool ret;
+
+	mutex_lock(&tc->lock);
+
+	ret = tc->link_refcount &&
+	      tc->mode == TC_PORT_DP_ALT &&
+	      intel_tc_port_needs_reset(tc);
+
+	mutex_unlock(&tc->lock);
+
+	return ret;
+}
+
+bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+
+	if (!intel_phy_is_tc(i915, phy))
+		return false;
+
+	return __intel_tc_port_link_needs_reset(to_tc_port(dig_port));
+}
+
+static int reset_link(struct intel_tc_port *tc)
+{
+	struct drm_i915_private *i915 = tc_to_i915(tc);
+	struct intel_digital_port *dig_port = tc->dig_port;
+	struct intel_dp *intel_dp = enc_to_intel_dp(&dig_port->base);
+	struct drm_modeset_acquire_ctx ctx;
+	struct drm_atomic_state *_state;
+	struct intel_atomic_state *state;
+	int ret = 0;
+
+	_state = drm_atomic_state_alloc(&i915->drm);
+	if (!_state)
+		return -ENOMEM;
+
+	state = to_intel_atomic_state(_state);
+	state->internal = true;
+
+	intel_modeset_lock_ctx_retry(&ctx, state, 0, ret) {
+		struct intel_crtc *crtc;
+		u8 pipe_mask;
+
+		ret = drm_modeset_lock(&i915->drm.mode_config.connection_mutex, &ctx);
+		if (ret)
+			continue;
+
+		ret = intel_dp_get_active_pipes(intel_dp, &ctx, &pipe_mask);
+		if (ret)
+			continue;
+
+		if (!pipe_mask)
+			continue;
+
+		for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, pipe_mask) {
+			struct intel_crtc_state *crtc_state;
+
+			crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+			if (IS_ERR(crtc_state)) {
+				ret = PTR_ERR(crtc_state);
+				break;
+			}
+
+			crtc_state->uapi.connectors_changed = true;
+		}
+
+		if (ret)
+			continue;
+
+		if (!__intel_tc_port_link_needs_reset(tc))
+			continue;
+
+		ret = drm_atomic_commit(&state->base);
+	}
+
+	drm_atomic_state_put(&state->base);
+
+	return ret;
+}
+
+static void intel_tc_port_link_reset_work(struct work_struct *work)
+{
+	struct intel_tc_port *tc =
+		container_of(work, struct intel_tc_port, link_reset_work.work);
+	struct drm_i915_private *i915 = tc_to_i915(tc);
+	int ret;
+
+	if (!__intel_tc_port_link_needs_reset(tc))
+		return;
+
+	/*
+	 * This shouldn't happen as while suspended the port is disabled and
+	 * hence does not require a link reset; still check for it to avoid a
+	 * modeset deadlock during suspending the encoder.
+	 */
+	if (drm_WARN_ON(&i915->drm, intel_display_driver_is_suspended(i915)))
+		return;
+
+	mutex_lock(&i915->drm.mode_config.mutex);
+
+	drm_dbg_kms(&i915->drm,
+		    "Port %s: TypeC DP-alt sink disconnected, resetting link\n",
+		    tc->port_name);
+	ret = reset_link(tc);
+	drm_WARN_ON(&i915->drm, ret);
+
+	mutex_unlock(&i915->drm.mode_config.mutex);
+}
+
+bool intel_tc_port_link_reset(struct intel_digital_port *dig_port)
+{
+	if (!intel_tc_port_link_needs_reset(dig_port))
+		return false;
+
+	queue_delayed_work(system_unbound_wq,
+			   &to_tc_port(dig_port)->link_reset_work,
+			   msecs_to_jiffies(2000));
+
+	return true;
+}
+
+void intel_tc_port_link_cancel_reset_work(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+	struct intel_tc_port *tc = to_tc_port(dig_port);
+
+	if (!intel_phy_is_tc(i915, phy))
+		return;
+
+	cancel_delayed_work(&tc->link_reset_work);
+}
+
 static void __intel_tc_port_lock(struct intel_tc_port *tc,
 				 int required_lanes)
 {
@@ -1619,11 +1761,19 @@ static void intel_tc_port_disconnect_phy_work(struct work_struct *work)
  *
  * Flush the delayed work disconnecting an idle PHY.
  */
-void intel_tc_port_flush_work(struct intel_digital_port *dig_port)
+static void intel_tc_port_flush_work(struct intel_digital_port *dig_port)
 {
 	flush_delayed_work(&to_tc_port(dig_port)->disconnect_phy_work);
 }
 
+void intel_tc_port_suspend(struct intel_digital_port *dig_port)
+{
+	struct intel_tc_port *tc = to_tc_port(dig_port);
+
+	cancel_delayed_work_sync(&tc->link_reset_work);
+	intel_tc_port_flush_work(dig_port);
+}
+
 void intel_tc_port_unlock(struct intel_digital_port *dig_port)
 {
 	struct intel_tc_port *tc = to_tc_port(dig_port);
@@ -1660,6 +1810,14 @@ void intel_tc_port_put_link(struct intel_digital_port *dig_port)
 	intel_tc_port_lock(dig_port);
 	__intel_tc_port_put_link(tc);
 	intel_tc_port_unlock(dig_port);
+
+	/*
+	 * The firmware will not update the HPD status of other TypeC ports
+	 * that are active in DP-alt mode with their sink disconnected, until
+	 * this port is disabled and its PHY gets disconnected. Make sure this
+	 * happens in a timely manner by disconnecting the PHY synchronously.
+	 */
+	intel_tc_port_flush_work(dig_port);
 }
 
 int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
@@ -1692,7 +1850,9 @@ int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
 		 "%c/TC#%d", port_name(port), tc_port + 1);
 
 	mutex_init(&tc->lock);
+	/* TODO: Combine the two works */
 	INIT_DELAYED_WORK(&tc->disconnect_phy_work, intel_tc_port_disconnect_phy_work);
+	INIT_DELAYED_WORK(&tc->link_reset_work, intel_tc_port_link_reset_work);
 	tc->legacy_port = is_legacy;
 	tc->mode = TC_PORT_DISCONNECTED;
 	tc->link_refcount = 0;
@@ -1706,7 +1866,7 @@ int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
 
 void intel_tc_port_cleanup(struct intel_digital_port *dig_port)
 {
-	intel_tc_port_flush_work(dig_port);
+	intel_tc_port_suspend(dig_port);
 
 	kfree(dig_port->tc);
 	dig_port->tc = NULL;
diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
index dd0810f9ea95e..3b16491925fa9 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.h
+++ b/drivers/gpu/drm/i915/display/intel_tc.h
@@ -30,11 +30,14 @@ void intel_tc_port_sanitize_mode(struct intel_digital_port *dig_port,
 				 const struct intel_crtc_state *crtc_state);
 void intel_tc_port_lock(struct intel_digital_port *dig_port);
 void intel_tc_port_unlock(struct intel_digital_port *dig_port);
-void intel_tc_port_flush_work(struct intel_digital_port *dig_port);
+void intel_tc_port_suspend(struct intel_digital_port *dig_port);
 void intel_tc_port_get_link(struct intel_digital_port *dig_port,
 			    int required_lanes);
 void intel_tc_port_put_link(struct intel_digital_port *dig_port);
 bool intel_tc_port_ref_held(struct intel_digital_port *dig_port);
+bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port);
+bool intel_tc_port_link_reset(struct intel_digital_port *dig_port);
+void intel_tc_port_link_cancel_reset_work(struct intel_digital_port *dig_port);
 
 int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
 void intel_tc_port_cleanup(struct intel_digital_port *dig_port);
-- 
2.37.2

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)

[Patchwork]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)
URL   : https://patchwork.freedesktop.org/series/117004/
State : warning

== Summary ==

Error: dim checkpatch failed
2da4ae991f31 drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration
9291fb098130 drm/i915: Make the CRTC state consistent during sanitize-disabling
4c0426c4a41c drm/i915: Update connector atomic state before crtc sanitize-disabling
a5df2034ec26 drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()
9cf778a8e13c drm/i915: Factor out set_encoder_for_connector()
799efd3afbc2 drm/i915: Add support for disabling any CRTCs during HW readout/sanitization
7c125d5e06b6 drm/i915/dp: Add link training debug and error printing helpers
-:34: ERROR:COMPLEX_MACRO: Macros with complex values should be enclosed in parentheses
#34: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:30:
+#define LT_MSG_ARGS(_intel_dp, _dp_phy)	(_intel_dp)->attached_connector->base.base.id, \
+					(_intel_dp)->attached_connector->base.name, \
+					dp_to_dig_port(_intel_dp)->base.base.base.id, \
+					dp_to_dig_port(_intel_dp)->base.base.name, \
+					drm_dp_phy_name(_dp_phy)

-:34: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_intel_dp' - possible side-effects?
#34: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:30:
+#define LT_MSG_ARGS(_intel_dp, _dp_phy)	(_intel_dp)->attached_connector->base.base.id, \
+					(_intel_dp)->attached_connector->base.name, \
+					dp_to_dig_port(_intel_dp)->base.base.base.id, \
+					dp_to_dig_port(_intel_dp)->base.base.name, \
+					drm_dp_phy_name(_dp_phy)

-:40: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_intel_dp' - possible side-effects?
#40: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:36:
+#define lt_dbg(_intel_dp, _dp_phy, _format, ...) \
+	drm_dbg_kms(&dp_to_i915(_intel_dp)->drm, \
+		    LT_MSG_PREFIX _format, \
+		    LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)

-:45: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_intel_dp' - possible side-effects?
#45: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:41:
+#define lt_err(_intel_dp, _dp_phy, _format, ...) \
+	drm_err(&dp_to_i915(_intel_dp)->drm, \
+		LT_MSG_PREFIX _format, \
+		LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)

total: 1 errors, 0 warnings, 3 checks, 758 lines checked
131d3aed3ef4 drm/i915/dp: Convert link training error to debug message on disconnected sink
-:38: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_intel_dp' - possible side-effects?
#38: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:41:
+#define lt_err(_intel_dp, _dp_phy, _format, ...) do { \
+	if (intel_digital_port_connected(&dp_to_dig_port(_intel_dp)->base)) \
+		drm_err(&dp_to_i915(_intel_dp)->drm, \
+			LT_MSG_PREFIX _format, \
+			LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__); \
+	else \
+		lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \
+} while (0)

-:38: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_dp_phy' - possible side-effects?
#38: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:41:
+#define lt_err(_intel_dp, _dp_phy, _format, ...) do { \
+	if (intel_digital_port_connected(&dp_to_dig_port(_intel_dp)->base)) \
+		drm_err(&dp_to_i915(_intel_dp)->drm, \
+			LT_MSG_PREFIX _format, \
+			LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__); \
+	else \
+		lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \
+} while (0)

-:38: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_format' - possible side-effects?
#38: FILE: drivers/gpu/drm/i915/display/intel_dp_link_training.c:41:
+#define lt_err(_intel_dp, _dp_phy, _format, ...) do { \
+	if (intel_digital_port_connected(&dp_to_dig_port(_intel_dp)->base)) \
+		drm_err(&dp_to_i915(_intel_dp)->drm, \
+			LT_MSG_PREFIX _format, \
+			LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__); \
+	else \
+		lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \
+} while (0)

total: 0 errors, 0 warnings, 3 checks, 18 lines checked
b6f8b7b97812 drm/i915/dp: Prevent link training fallback on disconnected port
b4c2db0a9931 drm/i915/dp: Factor out intel_dp_get_active_pipes()
81d0a120e652 drm/i915: Factor out a helper for handling atomic modeset locks/state
Traceback (most recent call last):
  File "scripts/spdxcheck.py", line 6, in <module>
    from ply import lex, yacc
ModuleNotFoundError: No module named 'ply'
Traceback (most recent call last):
  File "scripts/spdxcheck.py", line 6, in <module>
    from ply import lex, yacc
ModuleNotFoundError: No module named 'ply'
-:13: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#13: 
https://lore.kernel.org/all/20210715184954.7794-2-ville.syrjala@linux.intel.com/

-:86: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#86: 
new file mode 100644

-:174: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'ctx' - possible side-effects?
#174: FILE: drivers/gpu/drm/i915/display/intel_modeset_lock.h:28:
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))

-:174: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'state' - possible side-effects?
#174: FILE: drivers/gpu/drm/i915/display/intel_modeset_lock.h:28:
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))

-:174: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'ret' - possible side-effects?
#174: FILE: drivers/gpu/drm/i915/display/intel_modeset_lock.h:28:
+#define intel_modeset_lock_ctx_retry(ctx, state, flags, ret) \
+	for (_intel_modeset_lock_begin((ctx), (state), (flags), &(ret)); \
+	     _intel_modeset_lock_loop(&(ret)); \
+	     _intel_modeset_lock_end((ctx), (state), &(ret)))

total: 0 errors, 2 warnings, 3 checks, 125 lines checked
1743b7722aa8 drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects
-:70: WARNING:COMMIT_LOG_USE_LINK: Unknown link reference 'Closes:', use 'Link:' instead
#70: 
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860

total: 0 errors, 1 warnings, 0 checks, 463 lines checked

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)

[Patchwork]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)
URL   : https://patchwork.freedesktop.org/series/117004/
State : warning

== Summary ==

Error: dim sparse failed
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.

Re: [Intel-gfx] [PATCH v3 12/12] drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects

[Imre Deak]

On Fri, May 05, 2023 at 11:46:11PM +0300, Imre Deak wrote:
> If the output on a DP-alt link with its sink disconnected is kept
> enabled for too long (about 20 sec), then some IOM/TCSS firmware timeout
> will cause havoc on the PCI bus, at least for other GFX devices on it
> which will stop powering up. Since user space is not guaranteed to do a
> disabling modeset in time, switch such disconnected but active links to
> TBT mode - which is without such shortcomings - with a 2 second delay.
> 
> If the above condition is detected already during the driver load/system
> resume sanitization step disable the output instead, as at that point no
> user space or kernel client depends on a consistent output state yet and
> because subsequent atomic modeset on such connectors - without the
> actual sink capabilities available - can fail.
> 
> An active/disconnected port as above will also block the HPD status of
> other active/disconnected ports to get updated (stuck in the connected
> state), until the former port is disabled, its PHY is disconnected and
> a ~10 ms delay has elapsed. This means the link state for all TypeC
> ports/CRTCs must be rechecked after a CRTC is disabled due to the above
> reason. For this disconnect the PHY synchronously after the CRTC/port is
> disabled and recheck all CRTCs for the above condition whenever such a
> port is disabled.
> 
> To account for a race condition during driver loading where the sink is
> disconnected after the above sanitization step and before the HPD
> interrupts get enabled, do an explicit check/link reset if needed from
> the encoder's late_register hook, which is called after the HPD
> interrupts are enabled already.
> 
> v2:
> - Handle an active/disconnected port blocking the HPD state update of
>   another active/disconnected port.
> - Cancel the delayed work resetting the link also from the encoder
>   enable/suspend/shutdown hooks.
> - Rebase on the earlier intel_modeset_lock_ctx_retry() addition,
>   fixing here the missed atomic state reset in case of a retry.
> - Fix handling of an error return from intel_atomic_get_crtc_state().
> - Recheck if the port needs to be reset after all the atomic state
>   is locked and async commits are waited on.
> 
> v3:
> - Add intel_crtc_needs_link_reset(), instead of open-coding it,
>   keep intel_crtc_has_encoders(). (Ville)
> - Fix state dumping and use a bitmask to track disabled CRTCs in
>   intel_sanitize_all_crtcs(). (Ville)
> - Set internal in intel_atomic_state right after allocating it.
>   (Ville)
> - Recheck all CRTCs (not yet force-disabled) after a CRTC is
>   force-disabled for any reason (not only due to a link state)
>   in intel_sanitize_all_crtcs().
> - Reduce delay after CRTC disabling to 20ms, and use the simpler
>   msleep().
> - Clarify code comment about HPD behaviour in
>   intel_sanitize_all_crtcs().
> - Move all the TC link reset logic to intel_tc.c .
> - Cancel the link reset work synchronously during system suspend,
>   driver unload and shutdown.
> 
> Cc: Kai-Heng Feng <kai.heng.feng@canonical.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5860
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c      |  32 +++-
>  .../drm/i915/display/intel_display_driver.c   |   5 +
>  .../drm/i915/display/intel_display_driver.h   |   2 +
>  drivers/gpu/drm/i915/display/intel_dp.c       |   6 +-
>  drivers/gpu/drm/i915/display/intel_dp.h       |   3 +
>  .../drm/i915/display/intel_modeset_setup.c    |  85 +++++++--
>  drivers/gpu/drm/i915/display/intel_tc.c       | 164 +++++++++++++++++-
>  drivers/gpu/drm/i915/display/intel_tc.h       |   5 +-
>  8 files changed, 277 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 813be957ed11b..ba56c705ad64f 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3313,6 +3313,8 @@ static void intel_disable_ddi(struct intel_atomic_state *state,
>  			      const struct intel_crtc_state *old_crtc_state,
>  			      const struct drm_connector_state *old_conn_state)
>  {
> +	intel_tc_port_link_cancel_reset_work(enc_to_dig_port(encoder));
> +
>  	intel_hdcp_disable(to_intel_connector(old_conn_state->connector));
>  
>  	if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI))
> @@ -3381,6 +3383,8 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
>  	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
>  	bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
>  
> +	intel_tc_port_link_cancel_reset_work(dig_port);
> +
>  	if (is_tc_port) {
>  		struct intel_crtc *master_crtc =
>  			to_intel_crtc(crtc_state->uapi.crtc);
> @@ -4232,9 +4236,19 @@ static void intel_ddi_encoder_reset(struct drm_encoder *encoder)
>  		intel_tc_port_init_mode(dig_port);
>  }
>  
> +static int intel_ddi_encoder_late_register(struct drm_encoder *_encoder)
> +{
> +	struct intel_encoder *encoder = to_intel_encoder(_encoder);
> +
> +	intel_tc_port_link_reset(enc_to_dig_port(encoder));
> +
> +	return 0;
> +}
> +
>  static const struct drm_encoder_funcs intel_ddi_funcs = {
>  	.reset = intel_ddi_encoder_reset,
>  	.destroy = intel_ddi_encoder_destroy,
> +	.late_register = intel_ddi_encoder_late_register,
>  };
>  
>  static struct intel_connector *
> @@ -4404,14 +4418,16 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
>  
>  	state = intel_encoder_hotplug(encoder, connector);
>  
> -	intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
> -		if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
> -			ret = intel_hdmi_reset_link(encoder, &ctx);
> -		else
> -			ret = intel_dp_retrain_link(encoder, &ctx);
> -	}
> +	if (!intel_tc_port_link_reset(dig_port)) {
> +		intel_modeset_lock_ctx_retry(&ctx, NULL, 0, ret) {
> +			if (connector->base.connector_type == DRM_MODE_CONNECTOR_HDMIA)
> +				ret = intel_hdmi_reset_link(encoder, &ctx);
> +			else
> +				ret = intel_dp_retrain_link(encoder, &ctx);
> +		}
>  
> -	drm_WARN_ON(encoder->base.dev, ret);
> +		drm_WARN_ON(encoder->base.dev, ret);
> +	}
>  
>  	/*
>  	 * Unpowered type-c dongles can take some time to boot and be
> @@ -4627,7 +4643,7 @@ static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
>  	if (!intel_phy_is_tc(i915, phy))
>  		return;
>  
> -	intel_tc_port_flush_work(dig_port);
> +	intel_tc_port_suspend(dig_port);
>  }
>  
>  static void intel_ddi_encoder_shutdown(struct intel_encoder *encoder)
> diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
> index 60ce10fc72058..b62cf9d751011 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_driver.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
> @@ -505,6 +505,11 @@ int intel_display_driver_suspend(struct drm_i915_private *i915)
>  	return ret;
>  }
>  
> +bool intel_display_driver_is_suspended(struct drm_i915_private *i915)
> +{
> +	return i915->display.restore.modeset_state;
> +}
> +
>  int
>  __intel_display_driver_resume(struct drm_i915_private *i915,
>  			      struct drm_atomic_state *state,
> diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.h b/drivers/gpu/drm/i915/display/intel_display_driver.h
> index c276a58ee3293..9dcd9d5b2b1c7 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_driver.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_driver.h
> @@ -32,5 +32,7 @@ int __intel_display_driver_resume(struct drm_i915_private *i915,
>  				  struct drm_atomic_state *state,
>  				  struct drm_modeset_acquire_ctx *ctx);
>  
> +bool intel_display_driver_is_suspended(struct drm_i915_private *i915);
> +
>  #endif /* __INTEL_DISPLAY_DRIVER_H__ */
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 99ceaa7d90b62..9a13ec09755fc 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -4231,9 +4231,9 @@ static bool intel_dp_has_connector(struct intel_dp *intel_dp,
>  	return false;
>  }
>  
> -static int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
> -				     struct drm_modeset_acquire_ctx *ctx,
> -				     u8 *pipe_mask)
> +int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
> +			      struct drm_modeset_acquire_ctx *ctx,
> +			      u8 *pipe_mask)
>  {
>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
>  	struct drm_connector_list_iter conn_iter;
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index ef39e4f7a329e..5f86157a10d2d 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -42,6 +42,9 @@ void intel_dp_set_link_params(struct intel_dp *intel_dp,
>  			      int link_rate, int lane_count);
>  int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
>  					    int link_rate, u8 lane_count);
> +int intel_dp_get_active_pipes(struct intel_dp *intel_dp,
> +			      struct drm_modeset_acquire_ctx *ctx,
> +			      u8 *pipe_mask);
>  int intel_dp_retrain_link(struct intel_encoder *encoder,
>  			  struct drm_modeset_acquire_ctx *ctx);
>  void intel_dp_set_power(struct intel_dp *intel_dp, u8 mode);
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index 75b4dea1e442b..85f6401b8c709 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -26,6 +26,7 @@
>  #include "intel_fifo_underrun.h"
>  #include "intel_modeset_setup.h"
>  #include "intel_pch_display.h"
> +#include "intel_tc.h"
>  #include "intel_vblank.h"
>  #include "intel_wm.h"
>  #include "skl_watermark.h"
> @@ -379,6 +380,21 @@ static bool intel_crtc_has_encoders(struct intel_crtc *crtc)
>  	return false;
>  }
>  
> +static bool intel_crtc_needs_link_reset(struct intel_crtc *crtc)
> +{
> +	struct drm_device *dev = crtc->base.dev;
> +	struct intel_encoder *encoder;
> +
> +	for_each_encoder_on_crtc(dev, &crtc->base, encoder) {
> +		struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> +
> +		if (dig_port && intel_tc_port_link_needs_reset(dig_port))
> +			return true;
> +	}
> +
> +	return false;
> +}
> +
>  static struct intel_connector *intel_encoder_find_connector(struct intel_encoder *encoder)
>  {
>  	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
> @@ -421,11 +437,12 @@ static void intel_sanitize_fifo_underrun_reporting(const struct intel_crtc_state
>  					   !HAS_GMCH(i915));
>  }
>  
> -static void intel_sanitize_crtc(struct intel_crtc *crtc,
> +static bool intel_sanitize_crtc(struct intel_crtc *crtc,
>  				struct drm_modeset_acquire_ctx *ctx)
>  {
>  	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  	struct intel_crtc_state *crtc_state = to_intel_crtc_state(crtc->base.state);
> +	bool needs_link_reset;
>  
>  	if (crtc_state->hw.active) {
>  		struct intel_plane *plane;
> @@ -445,13 +462,65 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc,
>  		intel_color_commit_arm(crtc_state);
>  	}
>  
> +	if (!crtc_state->hw.active ||
> +	    intel_crtc_is_bigjoiner_slave(crtc_state))
> +		return false;
> +
> +	needs_link_reset = intel_crtc_needs_link_reset(crtc);
> +
>  	/*
>  	 * Adjust the state of the output pipe according to whether we have
>  	 * active connectors/encoders.
>  	 */
> -	if (crtc_state->hw.active && !intel_crtc_has_encoders(crtc) &&
> -	    !intel_crtc_is_bigjoiner_slave(crtc_state))
> -		intel_crtc_disable_noatomic(crtc, ctx);
> +	if (!needs_link_reset && intel_crtc_has_encoders(crtc))
> +		return false;
> +
> +	intel_crtc_disable_noatomic(crtc, ctx);
> +
> +	/*
> +	 * The HPD state on other active/disconnected TC ports may be stuck in
> +	 * the connected state until this port is disabled and a ~10ms delay has
> +	 * passed, wait here for that so that sanitizing other CRTCs will see the
> +	 * up-to-date HPD state.
> +	 */
> +	if (needs_link_reset)
> +		msleep(20);
> +
> +	return true;
> +}
> +
> +static void intel_sanitize_all_crtcs(struct drm_i915_private *i915,
> +				     struct drm_modeset_acquire_ctx *ctx)
> +{
> +	struct intel_crtc *crtc;
> +	u8 crtcs_forced_off = 0;
> +
> +	/*
> +	 * An active and disconnected TypeC port prevents the HPD live state
> +	 * to get updated on other active/disconnected TypeC ports, so after
> +	 * a port gets disabled the CRTCs using other TypeC ports must be
> +	 * rechecked wrt. their link status.
> +	 */
> +	for (;;) {
> +		u8 old_mask = crtcs_forced_off;
> +
> +		for_each_intel_crtc(&i915->drm, crtc) {
> +			if (BIT(crtc->pipe) & crtcs_forced_off)
> +				continue;
> +
> +			if (intel_sanitize_crtc(crtc, ctx))
> +				crtcs_forced_off |= BIT(crtc->pipe);
> +		}
> +		if (crtcs_forced_off == old_mask)
> +			break;
> +	}
> +
> +	for_each_intel_crtc(&i915->drm, crtc) {
> +		struct intel_crtc_state *crtc_state =
> +			to_intel_crtc_state(crtc->base.state);
> +
> +		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
> +	}
>  }
>  
>  static bool has_bogus_dpll_config(const struct intel_crtc_state *crtc_state)
> @@ -871,13 +940,7 @@ void intel_modeset_setup_hw_state(struct drm_i915_private *i915,
>  	 */
>  	intel_modeset_update_connector_atomic_state(i915);
>  
> -	for_each_intel_crtc(&i915->drm, crtc) {
> -		struct intel_crtc_state *crtc_state =
> -			to_intel_crtc_state(crtc->base.state);
> -
> -		intel_sanitize_crtc(crtc, ctx);
> -		intel_crtc_state_dump(crtc_state, NULL, "setup_hw_state");
> -	}
> +	intel_sanitize_all_crtcs(i915, ctx);
>  
>  	intel_dpll_sanitize_state(i915);
>  
> diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
> index 4fca711a58bce..f0fde20158c0b 100644
> --- a/drivers/gpu/drm/i915/display/intel_tc.c
> +++ b/drivers/gpu/drm/i915/display/intel_tc.c
> @@ -5,15 +5,19 @@
>  
>  #include "i915_drv.h"
>  #include "i915_reg.h"
> +#include "intel_atomic.h"
>  #include "intel_cx0_phy_regs.h"
>  #include "intel_ddi.h"
>  #include "intel_de.h"
>  #include "intel_display.h"
> +#include "intel_display_driver.h"
>  #include "intel_display_power_map.h"
>  #include "intel_display_types.h"
>  #include "intel_dkl_phy_regs.h"
> +#include "intel_dp.h"
>  #include "intel_dp_mst.h"
>  #include "intel_mg_phy_regs.h"
> +#include "intel_modeset_lock.h"
>  #include "intel_tc.h"
>  
>  #define DP_PIN_ASSIGNMENT_C	0x3
> @@ -51,6 +55,7 @@ struct intel_tc_port {
>  	enum intel_display_power_domain lock_power_domain;
>  #endif
>  	struct delayed_work disconnect_phy_work;
> +	struct delayed_work link_reset_work;
>  	int link_refcount;
>  	bool legacy_port:1;
>  	char port_name[8];
> @@ -1572,6 +1577,143 @@ bool intel_tc_port_connected(struct intel_encoder *encoder)
>  	return is_connected;
>  }
>  
> +static bool __intel_tc_port_link_needs_reset(struct intel_tc_port *tc)
> +{
> +	bool ret;
> +
> +	mutex_lock(&tc->lock);
> +
> +	ret = tc->link_refcount &&
> +	      tc->mode == TC_PORT_DP_ALT &&
> +	      intel_tc_port_needs_reset(tc);
> +
> +	mutex_unlock(&tc->lock);
> +
> +	return ret;
> +}
> +
> +bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
> +
> +	if (!intel_phy_is_tc(i915, phy))
> +		return false;
> +
> +	return __intel_tc_port_link_needs_reset(to_tc_port(dig_port));
> +}
> +
> +static int reset_link(struct intel_tc_port *tc)
> +{
> +	struct drm_i915_private *i915 = tc_to_i915(tc);
> +	struct intel_digital_port *dig_port = tc->dig_port;
> +	struct intel_dp *intel_dp = enc_to_intel_dp(&dig_port->base);
> +	struct drm_modeset_acquire_ctx ctx;
> +	struct drm_atomic_state *_state;
> +	struct intel_atomic_state *state;
> +	int ret = 0;
> +
> +	_state = drm_atomic_state_alloc(&i915->drm);
> +	if (!_state)
> +		return -ENOMEM;
> +
> +	state = to_intel_atomic_state(_state);
> +	state->internal = true;
> +
> +	intel_modeset_lock_ctx_retry(&ctx, state, 0, ret) {
> +		struct intel_crtc *crtc;
> +		u8 pipe_mask;
> +
> +		ret = drm_modeset_lock(&i915->drm.mode_config.connection_mutex, &ctx);
> +		if (ret)
> +			continue;
> +
> +		ret = intel_dp_get_active_pipes(intel_dp, &ctx, &pipe_mask);
> +		if (ret)
> +			continue;
> +
> +		if (!pipe_mask)
> +			continue;
> +
> +		for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, pipe_mask) {
> +			struct intel_crtc_state *crtc_state;
> +
> +			crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
> +			if (IS_ERR(crtc_state)) {
> +				ret = PTR_ERR(crtc_state);
> +				break;
> +			}
> +
> +			crtc_state->uapi.connectors_changed = true;
> +		}
> +
> +		if (ret)
> +			continue;
> +
> +		if (!__intel_tc_port_link_needs_reset(tc))
> +			continue;
> +
> +		ret = drm_atomic_commit(&state->base);
> +	}
> +
> +	drm_atomic_state_put(&state->base);
> +
> +	return ret;
> +}
> +
> +static void intel_tc_port_link_reset_work(struct work_struct *work)
> +{
> +	struct intel_tc_port *tc =
> +		container_of(work, struct intel_tc_port, link_reset_work.work);
> +	struct drm_i915_private *i915 = tc_to_i915(tc);
> +	int ret;
> +
> +	if (!__intel_tc_port_link_needs_reset(tc))
> +		return;
> +
> +	/*
> +	 * This shouldn't happen as while suspended the port is disabled and
> +	 * hence does not require a link reset; still check for it to avoid a
> +	 * modeset deadlock during suspending the encoder.
> +	 */
> +	if (drm_WARN_ON(&i915->drm, intel_display_driver_is_suspended(i915)))
> +		return;

Arg, the above should've been:

	suspended = intel_display_driver_is_suspended(i915);

	barrier();

	if (!__intel_tc_port_link_needs_reset(tc))
		return;

	if (drm_WARN_ON(suspended))
		return;

> +
> +	mutex_lock(&i915->drm.mode_config.mutex);
> +
> +	drm_dbg_kms(&i915->drm,
> +		    "Port %s: TypeC DP-alt sink disconnected, resetting link\n",
> +		    tc->port_name);
> +	ret = reset_link(tc);
> +	drm_WARN_ON(&i915->drm, ret);
> +
> +	mutex_unlock(&i915->drm.mode_config.mutex);
> +}
> +
> +bool intel_tc_port_link_reset(struct intel_digital_port *dig_port)
> +{
> +	if (!intel_tc_port_link_needs_reset(dig_port))
> +		return false;
> +
> +	queue_delayed_work(system_unbound_wq,
> +			   &to_tc_port(dig_port)->link_reset_work,
> +			   msecs_to_jiffies(2000));
> +
> +	return true;
> +}
> +
> +void intel_tc_port_link_cancel_reset_work(struct intel_digital_port *dig_port)
> +{
> +	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
> +	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
> +	struct intel_tc_port *tc = to_tc_port(dig_port);
> +
> +	if (!intel_phy_is_tc(i915, phy))
> +		return;
> +
> +	cancel_delayed_work(&tc->link_reset_work);
> +}
> +
>  static void __intel_tc_port_lock(struct intel_tc_port *tc,
>  				 int required_lanes)
>  {
> @@ -1619,11 +1761,19 @@ static void intel_tc_port_disconnect_phy_work(struct work_struct *work)
>   *
>   * Flush the delayed work disconnecting an idle PHY.
>   */
> -void intel_tc_port_flush_work(struct intel_digital_port *dig_port)
> +static void intel_tc_port_flush_work(struct intel_digital_port *dig_port)
>  {
>  	flush_delayed_work(&to_tc_port(dig_port)->disconnect_phy_work);
>  }
>  
> +void intel_tc_port_suspend(struct intel_digital_port *dig_port)
> +{
> +	struct intel_tc_port *tc = to_tc_port(dig_port);
> +
> +	cancel_delayed_work_sync(&tc->link_reset_work);
> +	intel_tc_port_flush_work(dig_port);
> +}
> +
>  void intel_tc_port_unlock(struct intel_digital_port *dig_port)
>  {
>  	struct intel_tc_port *tc = to_tc_port(dig_port);
> @@ -1660,6 +1810,14 @@ void intel_tc_port_put_link(struct intel_digital_port *dig_port)
>  	intel_tc_port_lock(dig_port);
>  	__intel_tc_port_put_link(tc);
>  	intel_tc_port_unlock(dig_port);
> +
> +	/*
> +	 * The firmware will not update the HPD status of other TypeC ports
> +	 * that are active in DP-alt mode with their sink disconnected, until
> +	 * this port is disabled and its PHY gets disconnected. Make sure this
> +	 * happens in a timely manner by disconnecting the PHY synchronously.
> +	 */
> +	intel_tc_port_flush_work(dig_port);
>  }
>  
>  int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
> @@ -1692,7 +1850,9 @@ int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
>  		 "%c/TC#%d", port_name(port), tc_port + 1);
>  
>  	mutex_init(&tc->lock);
> +	/* TODO: Combine the two works */
>  	INIT_DELAYED_WORK(&tc->disconnect_phy_work, intel_tc_port_disconnect_phy_work);
> +	INIT_DELAYED_WORK(&tc->link_reset_work, intel_tc_port_link_reset_work);
>  	tc->legacy_port = is_legacy;
>  	tc->mode = TC_PORT_DISCONNECTED;
>  	tc->link_refcount = 0;
> @@ -1706,7 +1866,7 @@ int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
>  
>  void intel_tc_port_cleanup(struct intel_digital_port *dig_port)
>  {
> -	intel_tc_port_flush_work(dig_port);
> +	intel_tc_port_suspend(dig_port);
>  
>  	kfree(dig_port->tc);
>  	dig_port->tc = NULL;
> diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
> index dd0810f9ea95e..3b16491925fa9 100644
> --- a/drivers/gpu/drm/i915/display/intel_tc.h
> +++ b/drivers/gpu/drm/i915/display/intel_tc.h
> @@ -30,11 +30,14 @@ void intel_tc_port_sanitize_mode(struct intel_digital_port *dig_port,
>  				 const struct intel_crtc_state *crtc_state);
>  void intel_tc_port_lock(struct intel_digital_port *dig_port);
>  void intel_tc_port_unlock(struct intel_digital_port *dig_port);
> -void intel_tc_port_flush_work(struct intel_digital_port *dig_port);
> +void intel_tc_port_suspend(struct intel_digital_port *dig_port);
>  void intel_tc_port_get_link(struct intel_digital_port *dig_port,
>  			    int required_lanes);
>  void intel_tc_port_put_link(struct intel_digital_port *dig_port);
>  bool intel_tc_port_ref_held(struct intel_digital_port *dig_port);
> +bool intel_tc_port_link_needs_reset(struct intel_digital_port *dig_port);
> +bool intel_tc_port_link_reset(struct intel_digital_port *dig_port);
> +void intel_tc_port_link_cancel_reset_work(struct intel_digital_port *dig_port);
>  
>  int intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy);
>  void intel_tc_port_cleanup(struct intel_digital_port *dig_port);
> -- 
> 2.37.2
> 

[Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 7015 bytes --]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)
URL   : https://patchwork.freedesktop.org/series/117004/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_13114 -> Patchwork_117004v10
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/index.html

Participating hosts (40 -> 39)
------------------------------

  Additional (1): fi-kbl-soraka 
  Missing    (2): fi-snb-2520m bat-mtlp-6 

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

  Here are the changes found in Patchwork_117004v10 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_huc_copy@huc-copy:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][1] ([fdo#109271] / [i915#2190])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/fi-kbl-soraka/igt@gem_huc_copy@huc-copy.html

  * igt@gem_lmem_swapping@basic:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][2] ([fdo#109271] / [i915#4613]) +3 similar issues
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/fi-kbl-soraka/igt@gem_lmem_swapping@basic.html

  * igt@i915_selftest@live@gt_pm:
    - fi-kbl-soraka:      NOTRUN -> [DMESG-FAIL][3] ([i915#1886] / [i915#7913])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/fi-kbl-soraka/igt@i915_selftest@live@gt_pm.html

  * igt@kms_chamelium_frames@hdmi-crc-fast:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][4] ([fdo#109271]) +16 similar issues
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/fi-kbl-soraka/igt@kms_chamelium_frames@hdmi-crc-fast.html

  * igt@kms_chamelium_hpd@common-hpd-after-suspend:
    - bat-rpls-2:         NOTRUN -> [SKIP][5] ([i915#7828])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-rpls-2/igt@kms_chamelium_hpd@common-hpd-after-suspend.html
    - bat-adlp-6:         NOTRUN -> [SKIP][6] ([i915#7828])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-adlp-6/igt@kms_chamelium_hpd@common-hpd-after-suspend.html
    - bat-jsl-3:          NOTRUN -> [SKIP][7] ([i915#7828])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-jsl-3/igt@kms_chamelium_hpd@common-hpd-after-suspend.html
    - bat-rpls-1:         NOTRUN -> [SKIP][8] ([i915#7828])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-rpls-1/igt@kms_chamelium_hpd@common-hpd-after-suspend.html

  * igt@kms_pipe_crc_basic@read-crc:
    - bat-adlp-9:         NOTRUN -> [SKIP][9] ([i915#3546]) +1 similar issue
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-adlp-9/igt@kms_pipe_crc_basic@read-crc.html

  * igt@kms_pipe_crc_basic@suspend-read-crc:
    - bat-rpls-1:         NOTRUN -> [SKIP][10] ([i915#1845])
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-rpls-1/igt@kms_pipe_crc_basic@suspend-read-crc.html
    - bat-rpls-2:         NOTRUN -> [SKIP][11] ([i915#1845])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-rpls-2/igt@kms_pipe_crc_basic@suspend-read-crc.html

  
#### Possible fixes ####

  * igt@gem_exec_suspend@basic-s3@smem:
    - bat-rpls-2:         [ABORT][12] ([i915#6687] / [i915#7978]) -> [PASS][13]
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/bat-rpls-2/igt@gem_exec_suspend@basic-s3@smem.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-rpls-2/igt@gem_exec_suspend@basic-s3@smem.html

  * igt@i915_selftest@live@hangcheck:
    - bat-adlp-6:         [ABORT][14] ([i915#7677] / [i915#7913]) -> [PASS][15]
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/bat-adlp-6/igt@i915_selftest@live@hangcheck.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-adlp-6/igt@i915_selftest@live@hangcheck.html

  * igt@i915_selftest@live@requests:
    - bat-rpls-1:         [ABORT][16] ([i915#4983] / [i915#7911] / [i915#7920]) -> [PASS][17]
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/bat-rpls-1/igt@i915_selftest@live@requests.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/bat-rpls-1/igt@i915_selftest@live@requests.html

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

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [i915#1845]: https://gitlab.freedesktop.org/drm/intel/issues/1845
  [i915#1886]: https://gitlab.freedesktop.org/drm/intel/issues/1886
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#3546]: https://gitlab.freedesktop.org/drm/intel/issues/3546
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#4983]: https://gitlab.freedesktop.org/drm/intel/issues/4983
  [i915#6687]: https://gitlab.freedesktop.org/drm/intel/issues/6687
  [i915#7677]: https://gitlab.freedesktop.org/drm/intel/issues/7677
  [i915#7828]: https://gitlab.freedesktop.org/drm/intel/issues/7828
  [i915#7911]: https://gitlab.freedesktop.org/drm/intel/issues/7911
  [i915#7913]: https://gitlab.freedesktop.org/drm/intel/issues/7913
  [i915#7920]: https://gitlab.freedesktop.org/drm/intel/issues/7920
  [i915#7978]: https://gitlab.freedesktop.org/drm/intel/issues/7978
  [i915#8379]: https://gitlab.freedesktop.org/drm/intel/issues/8379


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

  * Linux: CI_DRM_13114 -> Patchwork_117004v10

  CI-20190529: 20190529
  CI_DRM_13114: b4d6f70062cd04a8fdb9872828bcbe4767a4f833 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7281: 9e9cd7e69a393b7cce8fc12fce409eb59817dd7e @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_117004v10: b4d6f70062cd04a8fdb9872828bcbe4767a4f833 @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

a14d1e3fc62b drm/i915/tc: Reset TypeC PHYs left enabled in DP-alt mode after the sink disconnects
695d2c6f9cbe drm/i915: Factor out a helper for handling atomic modeset locks/state
98e4a4bd1a54 drm/i915/dp: Factor out intel_dp_get_active_pipes()
3627af38598a drm/i915/dp: Prevent link training fallback on disconnected port
0e1858c4ebb5 drm/i915/dp: Convert link training error to debug message on disconnected sink
331fcfdf5f46 drm/i915/dp: Add link training debug and error printing helpers
a2fe90166abd drm/i915: Add support for disabling any CRTCs during HW readout/sanitization
847c69a451a0 drm/i915: Factor out set_encoder_for_connector()
c71b8b47aa51 drm/i915: Separate intel_crtc_disable_noatomic_begin/complete()
195d6aa89ed9 drm/i915: Update connector atomic state before crtc sanitize-disabling
ae59dfc0e36e drm/i915: Make the CRTC state consistent during sanitize-disabling
38c5df301e6d drm/i915: Fix PIPEDMC disabling for a bigjoiner configuration

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/index.html

[-- Attachment #2: Type: text/html, Size: 8332 bytes --]

[Intel-gfx] ✗ Fi.CI.IGT: failure for drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 11789 bytes --]

== Series Details ==

Series: drm/i915/tc: Add a workaround for an IOM/TCSS firmware hang issue (rev10)
URL   : https://patchwork.freedesktop.org/series/117004/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_13114_full -> Patchwork_117004v10_full
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_117004v10_full absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_117004v10_full, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  

Participating hosts (7 -> 7)
------------------------------

  No changes in participating hosts

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

  Here are the unknown changes that may have been introduced in Patchwork_117004v10_full:

### IGT changes ###

#### Possible regressions ####

  * igt@kms_frontbuffer_tracking@fbc-suspend:
    - shard-apl:          [PASS][1] -> [ABORT][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-apl1/igt@kms_frontbuffer_tracking@fbc-suspend.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-apl3/igt@kms_frontbuffer_tracking@fbc-suspend.html

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

  Here are the changes found in Patchwork_117004v10_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@gem_ctx_persistence@process:
    - shard-snb:          NOTRUN -> [SKIP][3] ([fdo#109271] / [i915#1099]) +1 similar issue
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-snb6/igt@gem_ctx_persistence@process.html

  * igt@kms_ccs@pipe-c-bad-pixel-format-y_tiled_gen12_rc_ccs_cc:
    - shard-snb:          NOTRUN -> [SKIP][4] ([fdo#109271]) +111 similar issues
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-snb6/igt@kms_ccs@pipe-c-bad-pixel-format-y_tiled_gen12_rc_ccs_cc.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size:
    - shard-glk:          [PASS][5] -> [FAIL][6] ([i915#2346])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-glk9/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-glk5/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions-varying-size.html

  
#### Possible fixes ####

  * igt@gem_barrier_race@remote-request@rcs0:
    - {shard-tglu}:       [ABORT][7] ([i915#8211] / [i915#8234]) -> [PASS][8]
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-tglu-9/igt@gem_barrier_race@remote-request@rcs0.html
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-tglu-8/igt@gem_barrier_race@remote-request@rcs0.html

  * igt@gem_ctx_exec@basic-nohangcheck:
    - {shard-tglu}:       [FAIL][9] ([i915#6268]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-tglu-10/igt@gem_ctx_exec@basic-nohangcheck.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-tglu-3/igt@gem_ctx_exec@basic-nohangcheck.html

  * igt@gem_ctx_freq@sysfs:
    - {shard-dg1}:        [FAIL][11] ([i915#6786]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-dg1-15/igt@gem_ctx_freq@sysfs.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-dg1-15/igt@gem_ctx_freq@sysfs.html

  * igt@gem_exec_fair@basic-deadline:
    - {shard-rkl}:        [FAIL][13] ([i915#2846]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-rkl-7/igt@gem_exec_fair@basic-deadline.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-rkl-4/igt@gem_exec_fair@basic-deadline.html

  * igt@gem_exec_fair@basic-none@vcs0:
    - {shard-rkl}:        [FAIL][15] ([i915#2842]) -> [PASS][16] +2 similar issues
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-rkl-3/igt@gem_exec_fair@basic-none@vcs0.html
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-rkl-1/igt@gem_exec_fair@basic-none@vcs0.html

  * igt@gem_exec_fair@basic-pace-solo@rcs0:
    - shard-apl:          [FAIL][17] ([i915#2842]) -> [PASS][18]
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-apl3/igt@gem_exec_fair@basic-pace-solo@rcs0.html
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-apl1/igt@gem_exec_fair@basic-pace-solo@rcs0.html

  * igt@gem_exec_suspend@basic-s4-devices@lmem0:
    - {shard-dg1}:        [ABORT][19] ([i915#7975] / [i915#8213]) -> [PASS][20]
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-dg1-14/igt@gem_exec_suspend@basic-s4-devices@lmem0.html
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-dg1-17/igt@gem_exec_suspend@basic-s4-devices@lmem0.html

  * igt@gem_mmap_gtt@fault-concurrent-y:
    - shard-snb:          [ABORT][21] ([i915#5161]) -> [PASS][22]
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-snb2/igt@gem_mmap_gtt@fault-concurrent-y.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-snb6/igt@gem_mmap_gtt@fault-concurrent-y.html

  * igt@i915_pm_dc@dc9-dpms:
    - {shard-tglu}:       [SKIP][23] ([i915#4281]) -> [PASS][24]
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-tglu-6/igt@i915_pm_dc@dc9-dpms.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-tglu-4/igt@i915_pm_dc@dc9-dpms.html

  * igt@i915_pm_rpm@dpms-mode-unset-lpsp:
    - {shard-rkl}:        [SKIP][25] ([i915#1397]) -> [PASS][26] +1 similar issue
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-rkl-6/igt@i915_pm_rpm@dpms-mode-unset-lpsp.html
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-rkl-7/igt@i915_pm_rpm@dpms-mode-unset-lpsp.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions:
    - shard-glk:          [FAIL][27] ([i915#2346]) -> [PASS][28]
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-glk7/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-glk8/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html
    - shard-apl:          [FAIL][29] ([i915#2346]) -> [PASS][30]
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-apl4/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-apl4/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html

  * igt@kms_flip@flip-vs-suspend@b-vga1:
    - shard-snb:          [DMESG-WARN][31] ([i915#5090]) -> [PASS][32]
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13114/shard-snb2/igt@kms_flip@flip-vs-suspend@b-vga1.html
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_117004v10/shard-snb6/igt@kms_flip@flip-vs-suspend@b-vga1.html

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

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109280]: https://bugs.freedesktop.org/show_bug.cgi?id=109280
  [fdo#109315]: https://bugs.freedesktop.org/show_bug.cgi?id=109315
  [fdo#110189]: https://bugs.freedesktop.org/show_bug.cgi?id=110189
  [fdo#111614]: https://bugs.freedesktop.org/show_bug.cgi?id=111614
  [fdo#111615]: https://bugs.freedesktop.org/show_bug.cgi?id=111615
  [fdo#111825]: https://bugs.freedesktop.org/show_bug.cgi?id=111825
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1099]: https://gitlab.freedesktop.org/drm/intel/issues/1099
  [i915#1397]: https://gitlab.freedesktop.org/drm/intel/issues/1397
  [i915#2346]: https://gitlab.freedesktop.org/drm/intel/issues/2346
  [i915#2527]: https://gitlab.freedesktop.org/drm/intel/issues/2527
  [i915#2575]: https://gitlab.freedesktop.org/drm/intel/issues/2575
  [i915#2587]: https://gitlab.freedesktop.org/drm/intel/issues/2587
  [i915#2672]: https://gitlab.freedesktop.org/drm/intel/issues/2672
  [i915#2842]: https://gitlab.freedesktop.org/drm/intel/issues/2842
  [i915#2846]: https://gitlab.freedesktop.org/drm/intel/issues/2846
  [i915#315]: https://gitlab.freedesktop.org/drm/intel/issues/315
  [i915#3281]: https://gitlab.freedesktop.org/drm/intel/issues/3281
  [i915#3299]: https://gitlab.freedesktop.org/drm/intel/issues/3299
  [i915#3359]: https://gitlab.freedesktop.org/drm/intel/issues/3359
  [i915#3371]: https://gitlab.freedesktop.org/drm/intel/issues/3371
  [i915#3458]: https://gitlab.freedesktop.org/drm/intel/issues/3458
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#3689]: https://gitlab.freedesktop.org/drm/intel/issues/3689
  [i915#3886]: https://gitlab.freedesktop.org/drm/intel/issues/3886
  [i915#3952]: https://gitlab.freedesktop.org/drm/intel/issues/3952
  [i915#3955]: https://gitlab.freedesktop.org/drm/intel/issues/3955
  [i915#4070]: https://gitlab.freedesktop.org/drm/intel/issues/4070
  [i915#4077]: https://gitlab.freedesktop.org/drm/intel/issues/4077
  [i915#4078]: https://gitlab.freedesktop.org/drm/intel/issues/4078
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4281]: https://gitlab.freedesktop.org/drm/intel/issues/4281
  [i915#4391]: https://gitlab.freedesktop.org/drm/intel/issues/4391
  [i915#4538]: https://gitlab.freedesktop.org/drm/intel/issues/4538
  [i915#4579]: https://gitlab.freedesktop.org/drm/intel/issues/4579
  [i915#4816]: https://gitlab.freedesktop.org/drm/intel/issues/4816
  [i915#4833]: https://gitlab.freedesktop.org/drm/intel/issues/4833
  [i915#4936]: https://gitlab.freedesktop.org/drm/intel/issues/4936
  [i915#5090]: https://gitlab.freedesktop.org/drm/intel/issues/5090
  [i915#5161]: https://gitlab.freedesktop.org/drm/intel/issues/5161
  [i915#5176]: https://gitlab.freedesktop.org/drm/intel/issues/5176
  [i915#5286]: https://gitlab.freedesktop.org/drm/intel/issues/5286
  [i915#5354]: https://gitlab.freedesktop.org/drm/intel/issues/5354
  [i915#5461]: https://gitlab.freedesktop.org/drm/intel/issues/5461
  [i915#5493]: https://gitlab.freedesktop.org/drm/intel/issues/5493
  [i915#6095]: https://gitlab.freedesktop.org/drm/intel/issues/6095
  [i915#6268]: https://gitlab.freedesktop.org/drm/intel/issues/6268
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#6786]: https://gitlab.freedesktop.org/drm/intel/issues/6786
  [i915#7711]: https://gitlab.freedesktop.org/drm/intel/issues/7711
  [i915#7742]: https://gitlab.freedesktop.org/drm/intel/issues/7742
  [i915#7975]: https://gitlab.freedesktop.org/drm/intel/issues/7975
  [i915#8211]: https://gitlab.freedesktop.org/drm/intel/issues/8211
  [i915#8213]: https://gitlab.freedesktop.org/drm/intel/issues/8213
  [i915#8234]: https://gitlab.freedesktop.org/drm/intel/issues/8234
  [i915#8292]: https://gitlab.freedesktop.org/drm/intel/issues/8292


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

  * Linux: CI_DRM_13114 -> Patchwork_117004v10

  CI-20190529: 20190529
  CI_DRM_13114: b4d6f70062cd04a8fdb9872828bcbe4767a4f833 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7281: 9e9cd7e69a393b7cce8fc12fce409eb59817dd7e @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_117004v10: b4d6f70062cd04a8fdb9872828bcbe4767a4f833 @ 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_117004v10/index.html

[-- Attachment #2: Type: text/html, Size: 10162 bytes --]

Re: [Intel-gfx] [PATCH v3 08/12] drm/i915/dp: Convert link training error to debug message on disconnected sink

[Govindapillai, Vinod]

On Fri, 2023-05-05 at 23:46 +0300, Imre Deak wrote:
> If a sink is disconnected it's expected that link training actions will
> fail on it, so downgrade the error messages about such actions to be a
> debug message. Such - expected - link training failures are more
> frequent after a follow up patch, after which an active TypeC link is
> reset after the sink is disconnected which also involves a link
> training.
> 
> v2:
> - Check the actual HPD state to handle the forced connector state case.
>   (Vinod)
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---

Thanks. Looks good.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>

>  .../gpu/drm/i915/display/intel_dp_link_training.c    | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index 4f33b79b23db0..51d1e4b4b2f19 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -38,10 +38,14 @@
>                     LT_MSG_PREFIX _format, \
>                     LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
>  
> -#define lt_err(_intel_dp, _dp_phy, _format, ...) \
> -       drm_err(&dp_to_i915(_intel_dp)->drm, \
> -               LT_MSG_PREFIX _format, \
> -               LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__)
> +#define lt_err(_intel_dp, _dp_phy, _format, ...) do { \
> +       if (intel_digital_port_connected(&dp_to_dig_port(_intel_dp)->base)) \
> +               drm_err(&dp_to_i915(_intel_dp)->drm, \
> +                       LT_MSG_PREFIX _format, \
> +                       LT_MSG_ARGS(_intel_dp, _dp_phy), ## __VA_ARGS__); \
> +       else \
> +               lt_dbg(_intel_dp, _dp_phy, "Sink disconnected: " _format, ## __VA_ARGS__); \
> +} while (0)
>  
>  static void intel_dp_reset_lttpr_common_caps(struct intel_dp *intel_dp)
>  {

Re: [Intel-gfx] [PATCH v3 09/12] drm/i915/dp: Prevent link training fallback on disconnected port

[Govindapillai, Vinod]

On Fri, 2023-05-05 at 23:46 +0300, Imre Deak wrote:
> Prevent downgrading the link training maximum lane count/rate if the
> sink is disconnected - and so the link training failure is expected. In
> such cases modeset failures due to the reduced max link params would be
> just confusing for user space (instead of which the correct thing it
> should act on is the sink disconnect signaled by a hotplug event,
> requiring a disabling modeset).
> 
> v2:
> - Check the actual HPD state to handle the forced connector state case.
>   (Vinod)
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Vinod Govindapillai <vinod.govindapillai@intel.com>
> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---

Thanks. Looks good.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>

>  drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> index 51d1e4b4b2f19..0952a707358c1 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> @@ -1065,6 +1065,11 @@ static void intel_dp_schedule_fallback_link_training(struct intel_dp
> *intel_dp,
>  {
>         struct intel_connector *intel_connector = intel_dp->attached_connector;
>  
> +       if (!intel_digital_port_connected(&dp_to_dig_port(intel_dp)->base)) {
> +               lt_dbg(intel_dp, DP_PHY_DPRX, "Link Training failed on disconnected sink.\n");
> +               return;
> +       }
> +
>         if (intel_dp->hobl_active) {
>                 lt_dbg(intel_dp, DP_PHY_DPRX,
>                        "Link Training failed with HOBL active, not enabling it from now on\n");

Re: [Intel-gfx] [PATCH v3 02/12] drm/i915: Make the CRTC state consistent during sanitize-disabling

[Ville Syrjälä]

On Fri, May 05, 2023 at 11:46:04PM +0300, Imre Deak wrote:
> Make sure that the CRTC state is reset correctly, as expected after
> disabling the CRTC.
> 
> In particular this change will:
> - Zero all the CSC blob pointers after intel_crtc_free_hw_state()
>   has freed them.
> - Zero the shared DPLL and port PLL pointers and clear the
>   corresponding CRTC reference flag in the PLL state.
> - Reset all the transcoder and pipe fields.
> 
> v2:
> - Reset fully the CRTC state. (Ville)
> - Clear pipe active flags in the DPLL state.
> 
> v3:
> - Clear only the CRTC reference flag and add a helper for this.
>   (Ville)
> 
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 23 +++++++++++++------
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.h |  3 +++
>  .../drm/i915/display/intel_modeset_setup.c    | 13 ++++++-----
>  3 files changed, 26 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> index ed372d227aa73..e436127bfe94e 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> @@ -374,22 +374,31 @@ intel_reference_shared_dpll(struct intel_atomic_state *state,
>  		    crtc->base.base.id, crtc->base.name, pll->info->name);
>  }

Can you do the same for the reference counterpart for symmetry?
I'd also split this refactoring from the functional stuff.

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

>  
> +void
> +intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
> +				   const struct intel_shared_dpll *pll,
> +				   struct intel_shared_dpll_state *shared_dpll_state)
> +{
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> +
> +	drm_WARN_ON(&i915->drm, (shared_dpll_state->pipe_mask & BIT(crtc->pipe)) == 0);
> +
> +	shared_dpll_state->pipe_mask &= ~BIT(crtc->pipe);
> +
> +	drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] releasing %s\n",
> +		    crtc->base.base.id, crtc->base.name, pll->info->name);
> +}
> +
>  static void intel_unreference_shared_dpll(struct intel_atomic_state *state,
>  					  const struct intel_crtc *crtc,
>  					  const struct intel_shared_dpll *pll)
>  {
> -	struct drm_i915_private *i915 = to_i915(state->base.dev);
>  	struct intel_shared_dpll_state *shared_dpll;
>  	const enum intel_dpll_id id = pll->info->id;
>  
>  	shared_dpll = intel_atomic_get_shared_dpll_state(&state->base);
>  
> -	drm_WARN_ON(&i915->drm, (shared_dpll[id].pipe_mask & BIT(crtc->pipe)) == 0);
> -
> -	shared_dpll[id].pipe_mask &= ~BIT(crtc->pipe);
> -
> -	drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] releasing %s\n",
> -		    crtc->base.base.id, crtc->base.name, pll->info->name);
> +	intel_unreference_shared_dpll_crtc(crtc, pll, &shared_dpll[id]);
>  }
>  
>  static void intel_put_dpll(struct intel_atomic_state *state,
> diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> index 3854f1b4299ac..ba62eb5d7c517 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> @@ -341,6 +341,9 @@ int intel_reserve_shared_dplls(struct intel_atomic_state *state,
>  			       struct intel_encoder *encoder);
>  void intel_release_shared_dplls(struct intel_atomic_state *state,
>  				struct intel_crtc *crtc);
> +void intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
> +					const struct intel_shared_dpll *pll,
> +					struct intel_shared_dpll_state *shared_dpll_state);
>  void icl_set_active_port_dpll(struct intel_crtc_state *crtc_state,
>  			      enum icl_port_dpll_id port_dpll_id);
>  void intel_update_active_dpll(struct intel_atomic_state *state,
> diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> index eefa4018dc0c2..6e55806bbe066 100644
> --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> @@ -88,13 +88,14 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
>  	crtc->active = false;
>  	crtc->base.enabled = false;
>  
> -	drm_WARN_ON(&i915->drm,
> -		    drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0);
> -	crtc_state->uapi.active = false;
> -	crtc_state->uapi.connector_mask = 0;
> -	crtc_state->uapi.encoder_mask = 0;
> +	if (crtc_state->shared_dpll)
> +		intel_unreference_shared_dpll_crtc(crtc,
> +						   crtc_state->shared_dpll,
> +						   &crtc_state->shared_dpll->state);
> +
> +	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
>  	intel_crtc_free_hw_state(crtc_state);
> -	memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
> +	intel_crtc_state_reset(crtc_state, crtc);
>  
>  	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
>  		encoder->base.crtc = NULL;
> -- 
> 2.37.2

-- 
Ville Syrjälä
Intel

Re: [Intel-gfx] [PATCH v3 02/12] drm/i915: Make the CRTC state consistent during sanitize-disabling

[Imre Deak]

On Tue, May 09, 2023 at 05:45:31PM +0300, Ville Syrjälä wrote:
> On Fri, May 05, 2023 at 11:46:04PM +0300, Imre Deak wrote:
> > Make sure that the CRTC state is reset correctly, as expected after
> > disabling the CRTC.
> > 
> > In particular this change will:
> > - Zero all the CSC blob pointers after intel_crtc_free_hw_state()
> >   has freed them.
> > - Zero the shared DPLL and port PLL pointers and clear the
> >   corresponding CRTC reference flag in the PLL state.
> > - Reset all the transcoder and pipe fields.
> > 
> > v2:
> > - Reset fully the CRTC state. (Ville)
> > - Clear pipe active flags in the DPLL state.
> > 
> > v3:
> > - Clear only the CRTC reference flag and add a helper for this.
> >   (Ville)
> > 
> > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 23 +++++++++++++------
> >  drivers/gpu/drm/i915/display/intel_dpll_mgr.h |  3 +++
> >  .../drm/i915/display/intel_modeset_setup.c    | 13 ++++++-----
> >  3 files changed, 26 insertions(+), 13 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> > index ed372d227aa73..e436127bfe94e 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> > @@ -374,22 +374,31 @@ intel_reference_shared_dpll(struct intel_atomic_state *state,
> >  		    crtc->base.base.id, crtc->base.name, pll->info->name);
> >  }
> 
> Can you do the same for the reference counterpart for symmetry?

Yes, makes sense.

> I'd also split this refactoring from the functional stuff.

Ok. Patch 12 v3 also has an issue I noticed/commented on only after
sending it, if there's no other feedback on that one, I'll resend the
patchset with the above two also updated.

> With that
> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
>
> > +void
> > +intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
> > +				   const struct intel_shared_dpll *pll,
> > +				   struct intel_shared_dpll_state *shared_dpll_state)
> > +{
> > +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
> > +
> > +	drm_WARN_ON(&i915->drm, (shared_dpll_state->pipe_mask & BIT(crtc->pipe)) == 0);
> > +
> > +	shared_dpll_state->pipe_mask &= ~BIT(crtc->pipe);
> > +
> > +	drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] releasing %s\n",
> > +		    crtc->base.base.id, crtc->base.name, pll->info->name);
> > +}
> > +
> >  static void intel_unreference_shared_dpll(struct intel_atomic_state *state,
> >  					  const struct intel_crtc *crtc,
> >  					  const struct intel_shared_dpll *pll)
> >  {
> > -	struct drm_i915_private *i915 = to_i915(state->base.dev);
> >  	struct intel_shared_dpll_state *shared_dpll;
> >  	const enum intel_dpll_id id = pll->info->id;
> >  
> >  	shared_dpll = intel_atomic_get_shared_dpll_state(&state->base);
> >  
> > -	drm_WARN_ON(&i915->drm, (shared_dpll[id].pipe_mask & BIT(crtc->pipe)) == 0);
> > -
> > -	shared_dpll[id].pipe_mask &= ~BIT(crtc->pipe);
> > -
> > -	drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] releasing %s\n",
> > -		    crtc->base.base.id, crtc->base.name, pll->info->name);
> > +	intel_unreference_shared_dpll_crtc(crtc, pll, &shared_dpll[id]);
> >  }
> >  
> >  static void intel_put_dpll(struct intel_atomic_state *state,
> > diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> > index 3854f1b4299ac..ba62eb5d7c517 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> > +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h
> > @@ -341,6 +341,9 @@ int intel_reserve_shared_dplls(struct intel_atomic_state *state,
> >  			       struct intel_encoder *encoder);
> >  void intel_release_shared_dplls(struct intel_atomic_state *state,
> >  				struct intel_crtc *crtc);
> > +void intel_unreference_shared_dpll_crtc(const struct intel_crtc *crtc,
> > +					const struct intel_shared_dpll *pll,
> > +					struct intel_shared_dpll_state *shared_dpll_state);
> >  void icl_set_active_port_dpll(struct intel_crtc_state *crtc_state,
> >  			      enum icl_port_dpll_id port_dpll_id);
> >  void intel_update_active_dpll(struct intel_atomic_state *state,
> > diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > index eefa4018dc0c2..6e55806bbe066 100644
> > --- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > +++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
> > @@ -88,13 +88,14 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
> >  	crtc->active = false;
> >  	crtc->base.enabled = false;
> >  
> > -	drm_WARN_ON(&i915->drm,
> > -		    drm_atomic_set_mode_for_crtc(&crtc_state->uapi, NULL) < 0);
> > -	crtc_state->uapi.active = false;
> > -	crtc_state->uapi.connector_mask = 0;
> > -	crtc_state->uapi.encoder_mask = 0;
> > +	if (crtc_state->shared_dpll)
> > +		intel_unreference_shared_dpll_crtc(crtc,
> > +						   crtc_state->shared_dpll,
> > +						   &crtc_state->shared_dpll->state);
> > +
> > +	__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
> >  	intel_crtc_free_hw_state(crtc_state);
> > -	memset(&crtc_state->hw, 0, sizeof(crtc_state->hw));
> > +	intel_crtc_state_reset(crtc_state, crtc);
> >  
> >  	for_each_encoder_on_crtc(&i915->drm, &crtc->base, encoder)
> >  		encoder->base.crtc = NULL;
> > -- 
> > 2.37.2
> 
> -- 
> Ville Syrjälä
> Intel